* [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset
@ 2026-09-08 14:46 Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 01/41] drm/simple-kms: Remove unused reset_plane hook Maxime Ripard
` (41 more replies)
0 siblings, 42 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, hamohammed.sa, louis.chauvet,
melissa.srw, alexander.deucher, amd-gfx, christian.koenig,
alison.wang, stefan, John Stultz, sumit.semwal, xinliang.liu,
yongqin.liu, Frank.Li, Sascha Hauer, festevam, imx, kernel,
victor.liu, anitha.chrisanthus, paulk, chenhuacai, jeffbai,
lvjianmin, wuqianhai, xry111, zhengxingda, marex, airlied, kraxel,
spice-devel, virtualization, andy.yan, heiko, hjc, linux-rockchip,
Baolin Wang, orsonzhai, zhang.lyra, alain.volmat, rgallaispou,
alexandre.torgue, mcoquelin.stm32, philippe.cornu,
raphael.gallais-pou, yannick.fertre, jyri.sarha, tomi.valkeinen,
hansg, dmitry.osipenko, gurchetansingh, olvaffe, michal.simek,
harry.wentland, siqueira, sunpeng.li, linux,
Dharma Balasubiramani, Ludovic Desroches, Manikandan Muralidharan,
alexandre.belloni, claudiu.beznea, nicolas.ferre, alim.akhtar,
inki.dae, krzk, kyungmin.park, linux-samsung-soc, sw0312.kim,
p.zabel, angelogioacchino.delregno, chunkuang.hu, matthias.bgg,
Lyude Paul, dakr, nouveau, geert+renesas, kieran.bingham+renesas,
laurent.pinchart+renesas, linux-renesas-soc, magnus.damm,
tomi.valkeinen+renesas, Biju Das, linux-sunxi, samuel, wens,
Zack Rusin, bcm-kernel-feedback-list
This is a follow-up to the bridge reset removal series, and part of a
larger effort to remove the reset hook from all KMS objects.
The plane reset hook is overloaded: it is called both at probe time
to create the initial software state and during suspend/resume to
reset hardware and software state. These two roles have different
requirements, and the reset hook is not fallible, making error
handling difficult for the initial state allocation path.
While reset has the semantics to reset both the software and hardware
state, the vast majority of implementations and all the helpers only
reset the software state, making them equivalent to
atomic_create_state in practice. The atomic_create_state hook makes
this explicit: it only allocates and initializes a pristine state
without any side effect, and returns the state pointer or an ERR_PTR
on failure.
This series first adds the necessary infrastructure in the simple-kms
and GEM atomic helpers, then converts all 51 plane drivers tree-wide
from the reset hook to atomic_create_state. The conversions were done
using a combination of Coccinelle semantic patches and manual
adjustments. Once all drivers are converted, the old helpers and the
reset hook itself are removed from struct drm_plane_funcs.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Changes in v4:
- Fix a NULL pointer dereference with vkms
- Rebase on drm-misc-next-2026-09-03
- Link to v3: https://lore.kernel.org/r/20260831-drm-no-more-plane-reset-v3-0-1877c7aa57b3@kernel.org
Changes in v3:
- Drop leftover state destruction in sun4i
- Rebase on current drm-misc-next
- Link to v2: https://lore.kernel.org/r/20260814-drm-no-more-plane-reset-v2-0-82d2963dd134@kernel.org
Changes in v2:
- Rebase on latest drm-misc-next tag
- Fix sashiko reviews
- Fix atmel-hlcdc breakage
- Link to v1: https://lore.kernel.org/r/20260709-drm-no-more-plane-reset-v1-0-302d986fe5f0@kernel.org
---
Maxime Ripard (41):
drm/simple-kms: Remove unused reset_plane hook
drm/vkms: Move frame_info into vkms_plane_state
drm/vkms: Convert to atomic_create_state
drm/gem-atomic-helper: Remove __drm_gem_reset_shadow_plane()
drm/amdgpu: Convert to atomic_create_state
drm/fsl-dcu: Convert to atomic_create_state
drm/hisilicon/kirin: Convert to atomic_create_state
drm/imx/dc: Convert to atomic_create_state
drm/kmb: Convert to atomic_create_state
drm/logicvc: Convert to atomic_create_state
drm/loongson: Convert to atomic_create_state
drm/lcdif: Convert to atomic_create_state
drm/mxsfb: Convert to atomic_create_state
drm/qxl: Convert to atomic_create_state
drm/rockchip: Convert to atomic_create_state
drm/sprd: Convert to atomic_create_state
drm/sti: Convert to atomic_create_state
drm/stm: Convert to atomic_create_state
drm/tests: kunit: Convert to atomic_create_state
drm/tilcdc: Convert to atomic_create_state
drm/vboxvideo: Convert to atomic_create_state
drm/verisilicon: Convert to atomic_create_state
drm/virtio: Convert to atomic_create_state
drm/xlnx: Convert to atomic_create_state
drm/atomic-state-helper: Remove drm_atomic_helper_plane_reset()
drm/amdgpu_dm: Convert to atomic_create_state
drm/armada: Convert to atomic_create_state
drm/atmel-hlcdc: Drop spurious csc_init call from reset
drm/atmel-hlcdc: Convert to atomic_create_state
drm/exynos: Convert to atomic_create_state
drm/imx/ipuv3: Convert to atomic_create_state
drm/mediatek: Convert to atomic_create_state
drm/nouveau: Convert to atomic_create_state
drm/omap: Convert to atomic_create_state
drm/rcar-du: Convert to atomic_create_state
drm/rz-du: Convert to atomic_create_state
drm/shmobile: Convert to atomic_create_state
drm/sun4i: layer: Convert to atomic_create_state
drm/vmwgfx: Convert to atomic_create_state
drm/atomic-state-helper: Remove __drm_atomic_helper_plane_reset()
drm/plane: Remove reset
drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c | 2 +-
.../drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c | 28 ++++++++-----
.../drm/amd/display/amdgpu_dm/amdgpu_dm_plane.h | 2 +-
.../display/amdgpu_dm/tests/amdgpu_dm_plane_test.c | 30 +++++---------
drivers/gpu/drm/armada/armada_overlay.c | 39 ++++++++----------
drivers/gpu/drm/armada/armada_plane.c | 15 +++----
drivers/gpu/drm/armada/armada_plane.h | 2 +-
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 33 +++++++--------
drivers/gpu/drm/drm_atomic_state_helper.c | 41 ------------------
drivers/gpu/drm/drm_gem_atomic_helper.c | 20 ---------
drivers/gpu/drm/drm_mode_config.c | 4 +-
drivers/gpu/drm/exynos/exynos_drm_plane.c | 22 ++++------
drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c | 2 +-
drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 2 +-
drivers/gpu/drm/imx/dc/dc-plane.c | 2 +-
drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c | 19 ++++-----
drivers/gpu/drm/kmb/kmb_plane.c | 2 +-
drivers/gpu/drm/logicvc/logicvc_layer.c | 2 +-
drivers/gpu/drm/loongson/lsdc_plane.c | 2 +-
drivers/gpu/drm/mediatek/mtk_plane.c | 22 ++++------
drivers/gpu/drm/mxsfb/lcdif_kms.c | 2 +-
drivers/gpu/drm/mxsfb/mxsfb_kms.c | 2 +-
drivers/gpu/drm/nouveau/dispnv50/wndw.c | 15 ++++---
drivers/gpu/drm/omapdrm/omap_plane.c | 13 +++---
drivers/gpu/drm/qxl/qxl_display.c | 4 +-
drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c | 15 +++----
drivers/gpu/drm/renesas/rcar-du/rcar_du_vsp.c | 15 +++----
drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c | 15 +++----
drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c | 15 +++----
drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 2 +-
drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 2 +-
drivers/gpu/drm/sprd/sprd_dpu.c | 2 +-
drivers/gpu/drm/sti/sti_cursor.c | 2 +-
drivers/gpu/drm/sti/sti_gdp.c | 2 +-
drivers/gpu/drm/sti/sti_hqvdp.c | 2 +-
drivers/gpu/drm/stm/ltdc.c | 2 +-
drivers/gpu/drm/sun4i/sun4i_layer.c | 21 ++++------
drivers/gpu/drm/tests/drm_kunit_helpers.c | 2 +-
drivers/gpu/drm/tilcdc/tilcdc_plane.c | 2 +-
drivers/gpu/drm/vboxvideo/vbox_mode.c | 2 +-
drivers/gpu/drm/verisilicon/vs_cursor_plane.c | 2 +-
drivers/gpu/drm/verisilicon/vs_plane.c | 14 +++----
drivers/gpu/drm/verisilicon/vs_plane.h | 2 +-
drivers/gpu/drm/verisilicon/vs_primary_plane.c | 2 +-
drivers/gpu/drm/virtio/virtgpu_plane.c | 2 +-
drivers/gpu/drm/vkms/vkms_composer.c | 30 +++++++-------
drivers/gpu/drm/vkms/vkms_drv.h | 2 +-
drivers/gpu/drm/vkms/vkms_formats.c | 48 +++++++++++-----------
drivers/gpu/drm/vkms/vkms_plane.c | 36 +++++-----------
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 17 ++++----
drivers/gpu/drm/vmwgfx/vmwgfx_kms.h | 2 +-
drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c | 4 +-
drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c | 4 +-
drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 4 +-
drivers/gpu/drm/xlnx/zynqmp_kms.c | 2 +-
include/drm/drm_atomic_state_helper.h | 3 --
include/drm/drm_gem_atomic_helper.h | 2 -
include/drm/drm_plane.h | 12 ------
include/drm/drm_simple_kms_helper.h | 1 -
59 files changed, 236 insertions(+), 381 deletions(-)
---
base-commit: 17c6b88e85ffe5de5720004ae8c2176d52944aca
change-id: 20260629-drm-no-more-plane-reset-04950f42e07f
Best regards,
--
Maxime Ripard <mripard@kernel.org>
^ permalink raw reply [flat|nested] 54+ messages in thread
* [PATCH v4 01/41] drm/simple-kms: Remove unused reset_plane hook
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-10 6:30 ` Thomas Zimmermann
2026-09-08 14:46 ` [PATCH v4 02/41] drm/vkms: Move frame_info into vkms_plane_state Maxime Ripard
` (40 subsequent siblings)
41 siblings, 1 reply; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard
Commit 7f879284390c ("drm/simple-kms: Switch to atomic_create_state")
replaced drm_simple_kms_plane_reset() with
drm_simple_kms_plane_create_state(), removing the only user of the
reset_plane hook. However, the hook itself was left behind in struct
drm_simple_display_pipe_funcs.
Remove it.
Fixes: 7f879284390c ("drm/simple-kms: Switch to atomic_create_state")
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
include/drm/drm_simple_kms_helper.h | 1 -
1 file changed, 1 deletion(-)
diff --git a/include/drm/drm_simple_kms_helper.h b/include/drm/drm_simple_kms_helper.h
index 4a4a840d84f1..2b31c25c57a9 100644
--- a/include/drm/drm_simple_kms_helper.h
+++ b/include/drm/drm_simple_kms_helper.h
@@ -40,11 +40,10 @@ struct drm_simple_display_pipe_funcs {
int (*enable_vblank)(struct drm_simple_display_pipe *pipe);
void (*disable_vblank)(struct drm_simple_display_pipe *pipe);
struct drm_crtc_state * (*duplicate_crtc_state)(struct drm_simple_display_pipe *pipe);
void (*destroy_crtc_state)(struct drm_simple_display_pipe *pipe,
struct drm_crtc_state *crtc_state);
- void (*reset_plane)(struct drm_simple_display_pipe *pipe);
struct drm_plane_state * (*create_plane_state)(struct drm_simple_display_pipe *pipe);
struct drm_plane_state * (*duplicate_plane_state)(struct drm_simple_display_pipe *pipe);
void (*destroy_plane_state)(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *plane_state);
};
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 02/41] drm/vkms: Move frame_info into vkms_plane_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 01/41] drm/simple-kms: Remove unused reset_plane hook Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-10 6:33 ` Thomas Zimmermann
2026-09-08 14:46 ` [PATCH v4 03/41] drm/vkms: Convert to atomic_create_state Maxime Ripard
` (39 subsequent siblings)
41 siblings, 1 reply; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, hamohammed.sa, louis.chauvet,
melissa.srw
The vkms_frame_info structure is allocated separately in
vkms_plane_duplicate_state() and freed in vkms_plane_destroy_state(),
but has the exact same lifetime as the vkms_plane_state that contains
it.
This separate allocation is fragile: frame_info is only allocated in
duplicate_state, so any other path that creates a vkms_plane_state
produces a state with a NULL frame_info pointer. Both
vkms_plane_atomic_update() and vkms_plane_destroy_state() dereference
it unconditionally when a CRTC is set.
Embed frame_info directly in vkms_plane_state. The structure is
zero-initialized as part of the kzalloc, removing the need for a
separate allocation and its error handling in duplicate_state, and the
matching kfree in destroy_state.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: hamohammed.sa@gmail.com
Cc: louis.chauvet@bootlin.com
Cc: melissa.srw@gmail.com
---
drivers/gpu/drm/vkms/vkms_composer.c | 30 +++++++++++-----------
drivers/gpu/drm/vkms/vkms_drv.h | 2 +-
drivers/gpu/drm/vkms/vkms_formats.c | 48 ++++++++++++++++++------------------
drivers/gpu/drm/vkms/vkms_plane.c | 21 +++-------------
4 files changed, 44 insertions(+), 57 deletions(-)
diff --git a/drivers/gpu/drm/vkms/vkms_composer.c b/drivers/gpu/drm/vkms/vkms_composer.c
index 899120cd07ac..0fc915a954ba 100644
--- a/drivers/gpu/drm/vkms/vkms_composer.c
+++ b/drivers/gpu/drm/vkms/vkms_composer.c
@@ -309,11 +309,11 @@ static void clamp_line_coordinates(enum pixel_read_direction direction,
int *src_y_start, int *dst_x_start, int *pixel_count)
{
/* By default the start points are correct */
*src_x_start = src_line->x1;
*src_y_start = src_line->y1;
- *dst_x_start = current_plane->frame_info->dst.x1;
+ *dst_x_start = current_plane->frame_info.dst.x1;
/* Get the correct number of pixel to blend, it depends of the direction */
switch (direction) {
case READ_LEFT_TO_RIGHT:
case READ_RIGHT_TO_LEFT:
@@ -337,23 +337,23 @@ static void clamp_line_coordinates(enum pixel_read_direction direction,
if (*src_x_start < 0) {
*pixel_count += *src_x_start;
*dst_x_start -= *src_x_start;
*src_x_start = 0;
}
- if (*src_x_start + *pixel_count > current_plane->frame_info->fb->width)
- *pixel_count = max(0, (int)current_plane->frame_info->fb->width -
+ if (*src_x_start + *pixel_count > current_plane->frame_info.fb->width)
+ *pixel_count = max(0, (int)current_plane->frame_info.fb->width -
*src_x_start);
break;
case READ_BOTTOM_TO_TOP:
case READ_TOP_TO_BOTTOM:
if (*src_y_start < 0) {
*pixel_count += *src_y_start;
*dst_x_start -= *src_y_start;
*src_y_start = 0;
}
- if (*src_y_start + *pixel_count > current_plane->frame_info->fb->height)
- *pixel_count = max(0, (int)current_plane->frame_info->fb->height -
+ if (*src_y_start + *pixel_count > current_plane->frame_info.fb->height)
+ *pixel_count = max(0, (int)current_plane->frame_info.fb->height -
*src_y_start);
break;
}
}
@@ -372,24 +372,24 @@ static void blend_line(struct vkms_plane_state *current_plane, int y,
{
int src_x_start, src_y_start, dst_x_start, pixel_count;
struct drm_rect dst_line, tmp_src, src_line;
/* Avoid rendering useless lines */
- if (y < current_plane->frame_info->dst.y1 ||
- y >= current_plane->frame_info->dst.y2)
+ if (y < current_plane->frame_info.dst.y1 ||
+ y >= current_plane->frame_info.dst.y2)
return;
/*
* dst_line is the line to copy. The initial coordinates are inside the
* destination framebuffer, and then drm_rect_* helpers are used to
* compute the correct position into the source framebuffer.
*/
- dst_line = DRM_RECT_INIT(current_plane->frame_info->dst.x1, y,
- drm_rect_width(¤t_plane->frame_info->dst),
+ dst_line = DRM_RECT_INIT(current_plane->frame_info.dst.x1, y,
+ drm_rect_width(¤t_plane->frame_info.dst),
1);
- drm_rect_fp_to_int(&tmp_src, ¤t_plane->frame_info->src);
+ drm_rect_fp_to_int(&tmp_src, ¤t_plane->frame_info.src);
/*
* [1]: Clamping src_line to the crtc_x_limit to avoid writing outside of
* the destination buffer
*/
@@ -409,21 +409,21 @@ static void blend_line(struct vkms_plane_state *current_plane, int y,
* - Invert the rotation. This assumes that
* dst = drm_rect_rotate(src, rotation) (dst and src have the
* same size, but can be rotated).
* - Apply the offset of the source rectangle to the coordinate.
*/
- drm_rect_translate(&src_line, -current_plane->frame_info->dst.x1,
- -current_plane->frame_info->dst.y1);
+ drm_rect_translate(&src_line, -current_plane->frame_info.dst.x1,
+ -current_plane->frame_info.dst.y1);
drm_rect_rotate_inv(&src_line, drm_rect_width(&tmp_src),
drm_rect_height(&tmp_src),
- current_plane->frame_info->rotation);
+ current_plane->frame_info.rotation);
drm_rect_translate(&src_line, tmp_src.x1, tmp_src.y1);
/* Get the correct reading direction in the source buffer. */
enum pixel_read_direction direction =
- direction_for_rotation(current_plane->frame_info->rotation);
+ direction_for_rotation(current_plane->frame_info.rotation);
/* [2]: Compute and clamp the number of pixel to read */
clamp_line_coordinates(direction, current_plane, &src_line, &src_x_start, &src_y_start,
&dst_x_start, &pixel_count);
@@ -537,11 +537,11 @@ static int check_iosys_map(struct vkms_crtc_state *crtc_state)
{
struct vkms_plane_state **plane_state = crtc_state->active_planes;
u32 n_active_planes = crtc_state->num_active_planes;
for (size_t i = 0; i < n_active_planes; i++)
- if (iosys_map_is_null(&plane_state[i]->frame_info->map[0]))
+ if (iosys_map_is_null(&plane_state[i]->frame_info.map[0]))
return -1;
return 0;
}
diff --git a/drivers/gpu/drm/vkms/vkms_drv.h b/drivers/gpu/drm/vkms/vkms_drv.h
index 0933e4ce0ff0..381483aa4fb0 100644
--- a/drivers/gpu/drm/vkms/vkms_drv.h
+++ b/drivers/gpu/drm/vkms/vkms_drv.h
@@ -147,11 +147,11 @@ struct conversion_matrix {
* struct vkms_plane_state must ensure that this pointer is valid
* @conversion_matrix: matrix used for yuv formats to convert to rgb
*/
struct vkms_plane_state {
struct drm_shadow_plane_state base;
- struct vkms_frame_info *frame_info;
+ struct vkms_frame_info frame_info;
pixel_read_line_t pixel_read_line;
struct conversion_matrix conversion_matrix;
};
struct vkms_plane {
diff --git a/drivers/gpu/drm/vkms/vkms_formats.c b/drivers/gpu/drm/vkms/vkms_formats.c
index 964b574d9ed7..7f1f29b589e8 100644
--- a/drivers/gpu/drm/vkms/vkms_formats.c
+++ b/drivers/gpu/drm/vkms/vkms_formats.c
@@ -319,14 +319,14 @@ EXPORT_SYMBOL_IF_KUNIT(argb_u16_from_yuv161616);
static void function_name(const struct vkms_plane_state *plane, int x_start, \
int y_start, enum pixel_read_direction direction, int count, \
struct pixel_argb_u16 out_pixel[]) \
{ \
struct pixel_argb_u16 *end = out_pixel + count; \
- int step = get_block_step_bytes(plane->frame_info->fb, direction, 0); \
+ int step = get_block_step_bytes(plane->frame_info.fb, direction, 0); \
u8 *src_pixels; \
\
- packed_pixels_addr_1x1(plane->frame_info, x_start, y_start, 0, &src_pixels); \
+ packed_pixels_addr_1x1(&plane->frame_info, x_start, y_start, 0, &src_pixels); \
\
while (out_pixel < end) { \
pixel_type *(pixel_name) = (pixel_type *)src_pixels; \
*out_pixel = (callback)(__VA_ARGS__); \
out_pixel += 1; \
@@ -377,20 +377,20 @@ static void function_name(const struct vkms_plane_state *plane, int x_start, \
static void Rx_read_line(const struct vkms_plane_state *plane, int x_start,
int y_start, enum pixel_read_direction direction, int count,
struct pixel_argb_u16 out_pixel[])
{
struct pixel_argb_u16 *end = out_pixel + count;
- int bits_per_pixel = drm_format_info_bpp(plane->frame_info->fb->format, 0);
+ int bits_per_pixel = drm_format_info_bpp(plane->frame_info.fb->format, 0);
u8 *src_pixels;
int rem_x, rem_y;
- WARN_ONCE(drm_format_info_block_height(plane->frame_info->fb->format, 0) != 1,
+ WARN_ONCE(drm_format_info_block_height(plane->frame_info.fb->format, 0) != 1,
"%s() only support formats with block_h == 1", __func__);
- packed_pixels_addr(plane->frame_info, x_start, y_start, 0, &src_pixels, &rem_x, &rem_y);
+ packed_pixels_addr(&plane->frame_info, x_start, y_start, 0, &src_pixels, &rem_x, &rem_y);
int bit_offset = (8 - bits_per_pixel) - rem_x * bits_per_pixel;
- int step = get_block_step_bytes(plane->frame_info->fb, direction, 0);
+ int step = get_block_step_bytes(plane->frame_info.fb, direction, 0);
int mask = (0x1 << bits_per_pixel) - 1;
int lum_per_level = 0xFFFF / mask;
if (direction == READ_LEFT_TO_RIGHT || direction == READ_RIGHT_TO_LEFT) {
int restart_bit_offset;
@@ -501,19 +501,19 @@ static void function_name(const struct vkms_plane_state *plane, int x_start, \
struct pixel_argb_u16 out_pixel[]) \
{ \
u8 *plane_1; \
u8 *plane_2; \
\
- packed_pixels_addr_1x1(plane->frame_info, x_start, y_start, 0, \
+ packed_pixels_addr_1x1(&plane->frame_info, x_start, y_start, 0, \
&plane_1); \
- packed_pixels_addr_1x1(plane->frame_info, \
- x_start / plane->frame_info->fb->format->hsub, \
- y_start / plane->frame_info->fb->format->vsub, 1, \
+ packed_pixels_addr_1x1(&plane->frame_info, \
+ x_start / plane->frame_info.fb->format->hsub, \
+ y_start / plane->frame_info.fb->format->vsub, 1, \
&plane_2); \
- int step_1 = get_block_step_bytes(plane->frame_info->fb, direction, 0); \
- int step_2 = get_block_step_bytes(plane->frame_info->fb, direction, 1); \
- int subsampling = get_subsampling(plane->frame_info->fb->format, direction); \
+ int step_1 = get_block_step_bytes(plane->frame_info.fb, direction, 0); \
+ int step_2 = get_block_step_bytes(plane->frame_info.fb, direction, 1); \
+ int subsampling = get_subsampling(plane->frame_info.fb->format, direction); \
int subsampling_offset = get_subsampling_offset(direction, x_start, y_start); \
const struct conversion_matrix *conversion_matrix = &plane->conversion_matrix; \
\
for (int i = 0; i < count; i++) { \
pixel_1_type *(pixel_1_name) = (pixel_1_type *)plane_1; \
@@ -546,24 +546,24 @@ static void planar_yuv_read_line(const struct vkms_plane_state *plane, int x_sta
{
u8 *y_plane;
u8 *channel_1_plane;
u8 *channel_2_plane;
- packed_pixels_addr_1x1(plane->frame_info, x_start, y_start, 0,
+ packed_pixels_addr_1x1(&plane->frame_info, x_start, y_start, 0,
&y_plane);
- packed_pixels_addr_1x1(plane->frame_info,
- x_start / plane->frame_info->fb->format->hsub,
- y_start / plane->frame_info->fb->format->vsub, 1,
+ packed_pixels_addr_1x1(&plane->frame_info,
+ x_start / plane->frame_info.fb->format->hsub,
+ y_start / plane->frame_info.fb->format->vsub, 1,
&channel_1_plane);
- packed_pixels_addr_1x1(plane->frame_info,
- x_start / plane->frame_info->fb->format->hsub,
- y_start / plane->frame_info->fb->format->vsub, 2,
+ packed_pixels_addr_1x1(&plane->frame_info,
+ x_start / plane->frame_info.fb->format->hsub,
+ y_start / plane->frame_info.fb->format->vsub, 2,
&channel_2_plane);
- int step_y = get_block_step_bytes(plane->frame_info->fb, direction, 0);
- int step_channel_1 = get_block_step_bytes(plane->frame_info->fb, direction, 1);
- int step_channel_2 = get_block_step_bytes(plane->frame_info->fb, direction, 2);
- int subsampling = get_subsampling(plane->frame_info->fb->format, direction);
+ int step_y = get_block_step_bytes(plane->frame_info.fb, direction, 0);
+ int step_channel_1 = get_block_step_bytes(plane->frame_info.fb, direction, 1);
+ int step_channel_2 = get_block_step_bytes(plane->frame_info.fb, direction, 2);
+ int subsampling = get_subsampling(plane->frame_info.fb->format, direction);
int subsampling_offset = get_subsampling_offset(direction, x_start, y_start);
const struct conversion_matrix *conversion_matrix = &plane->conversion_matrix;
for (int i = 0; i < count; i++) {
*out_pixel = argb_u16_from_yuv161616(conversion_matrix,
diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c
index 6ee5c3f3207c..2fd4edf2d190 100644
--- a/drivers/gpu/drm/vkms/vkms_plane.c
+++ b/drivers/gpu/drm/vkms/vkms_plane.c
@@ -53,25 +53,15 @@ static const u32 vkms_formats[] = {
static struct drm_plane_state *
vkms_plane_duplicate_state(struct drm_plane *plane)
{
struct vkms_plane_state *vkms_state;
- struct vkms_frame_info *frame_info;
vkms_state = kzalloc_obj(*vkms_state);
if (!vkms_state)
return NULL;
- frame_info = kzalloc_obj(*frame_info);
- if (!frame_info) {
- DRM_DEBUG_KMS("Couldn't allocate frame_info\n");
- kfree(vkms_state);
- return NULL;
- }
-
- vkms_state->frame_info = frame_info;
-
__drm_gem_duplicate_shadow_plane_state(plane, &vkms_state->base);
return &vkms_state->base.base;
}
@@ -79,21 +69,18 @@ static void vkms_plane_destroy_state(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct vkms_plane_state *vkms_state = to_vkms_plane_state(old_state);
struct drm_crtc *crtc = vkms_state->base.base.crtc;
- if (crtc && vkms_state->frame_info->fb) {
+ if (crtc && vkms_state->frame_info.fb) {
/* dropping the reference we acquired in
* vkms_primary_plane_update()
*/
- if (drm_framebuffer_read_refcount(vkms_state->frame_info->fb))
- drm_framebuffer_put(vkms_state->frame_info->fb);
+ if (drm_framebuffer_read_refcount(vkms_state->frame_info.fb))
+ drm_framebuffer_put(vkms_state->frame_info.fb);
}
- kfree(vkms_state->frame_info);
- vkms_state->frame_info = NULL;
-
__drm_gem_destroy_shadow_plane_state(&vkms_state->base);
kfree(vkms_state);
}
static void vkms_plane_reset(struct drm_plane *plane)
@@ -141,11 +128,11 @@ static void vkms_plane_atomic_update(struct drm_plane *plane,
fmt = fb->format->format;
vkms_plane_state = to_vkms_plane_state(new_state);
shadow_plane_state = &vkms_plane_state->base;
- frame_info = vkms_plane_state->frame_info;
+ frame_info = &vkms_plane_state->frame_info;
memcpy(&frame_info->src, &new_state->src, sizeof(struct drm_rect));
memcpy(&frame_info->dst, &new_state->dst, sizeof(struct drm_rect));
frame_info->fb = fb;
memcpy(&frame_info->map, &shadow_plane_state->data, sizeof(frame_info->map));
drm_framebuffer_get(frame_info->fb);
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 03/41] drm/vkms: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 01/41] drm/simple-kms: Remove unused reset_plane hook Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 02/41] drm/vkms: Move frame_info into vkms_plane_state Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 04/41] drm/gem-atomic-helper: Remove __drm_gem_reset_shadow_plane() Maxime Ripard
` (38 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, hamohammed.sa, louis.chauvet,
melissa.srw
The plane reset implementation creates a custom state subclass, but
only initializes a pristine state without resetting any hardware. This
is equivalent to what atomic_create_state expects. Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: hamohammed.sa@gmail.com
Cc: louis.chauvet@bootlin.com
Cc: melissa.srw@gmail.com
---
drivers/gpu/drm/vkms/vkms_plane.c | 15 ++++++---------
1 file changed, 6 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c
index 2fd4edf2d190..fd3d34dcf0fe 100644
--- a/drivers/gpu/drm/vkms/vkms_plane.c
+++ b/drivers/gpu/drm/vkms/vkms_plane.c
@@ -81,32 +81,29 @@ static void vkms_plane_destroy_state(struct drm_plane *plane,
__drm_gem_destroy_shadow_plane_state(&vkms_state->base);
kfree(vkms_state);
}
-static void vkms_plane_reset(struct drm_plane *plane)
+static struct drm_plane_state *vkms_plane_create_state(struct drm_plane *plane)
{
struct vkms_plane_state *vkms_state;
- if (plane->state) {
- vkms_plane_destroy_state(plane, plane->state);
- plane->state = NULL; /* must be set to NULL here */
- }
-
vkms_state = kzalloc_obj(*vkms_state);
if (!vkms_state) {
DRM_ERROR("Cannot allocate vkms_plane_state\n");
- return;
+ return ERR_PTR(-ENOMEM);
}
- __drm_gem_reset_shadow_plane(plane, &vkms_state->base);
+ __drm_gem_shadow_plane_state_init(plane, &vkms_state->base);
+
+ return &(&vkms_state->base)->base;
}
static const struct drm_plane_funcs vkms_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
- .reset = vkms_plane_reset,
+ .atomic_create_state = vkms_plane_create_state,
.atomic_duplicate_state = vkms_plane_duplicate_state,
.atomic_destroy_state = vkms_plane_destroy_state,
};
static void vkms_plane_atomic_update(struct drm_plane *plane,
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 04/41] drm/gem-atomic-helper: Remove __drm_gem_reset_shadow_plane()
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (2 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 03/41] drm/vkms: Convert to atomic_create_state Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 05/41] drm/amdgpu: Convert to atomic_create_state Maxime Ripard
` (37 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard
__drm_gem_reset_shadow_plane() is no longer used: all callers now go
through __drm_gem_shadow_plane_state_init() or
drm_gem_create_shadow_plane_state(). Remove it.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
drivers/gpu/drm/drm_gem_atomic_helper.c | 20 --------------------
include/drm/drm_gem_atomic_helper.h | 2 --
2 files changed, 22 deletions(-)
diff --git a/drivers/gpu/drm/drm_gem_atomic_helper.c b/drivers/gpu/drm/drm_gem_atomic_helper.c
index 3bb6bfd560d3..dd9efa7e3216 100644
--- a/drivers/gpu/drm/drm_gem_atomic_helper.c
+++ b/drivers/gpu/drm/drm_gem_atomic_helper.c
@@ -317,30 +317,10 @@ void drm_gem_destroy_shadow_plane_state(struct drm_plane *plane,
__drm_gem_destroy_shadow_plane_state(shadow_plane_state);
kfree(shadow_plane_state);
}
EXPORT_SYMBOL(drm_gem_destroy_shadow_plane_state);
-/**
- * __drm_gem_reset_shadow_plane - resets a shadow-buffered plane
- * @plane: the plane
- * @shadow_plane_state: the shadow-buffered plane state
- *
- * This function resets state for shadow-buffered planes. Helpful
- * for drivers that subclass struct drm_shadow_plane_state.
- */
-void __drm_gem_reset_shadow_plane(struct drm_plane *plane,
- struct drm_shadow_plane_state *shadow_plane_state)
-{
- if (shadow_plane_state) {
- __drm_atomic_helper_plane_reset(plane, &shadow_plane_state->base);
- drm_format_conv_state_init(&shadow_plane_state->fmtcnv_state);
- } else {
- __drm_atomic_helper_plane_reset(plane, NULL);
- }
-}
-EXPORT_SYMBOL(__drm_gem_reset_shadow_plane);
-
/**
* drm_gem_begin_shadow_fb_access - prepares shadow framebuffers for CPU access
* @plane: the plane
* @plane_state: the plane state of type struct drm_shadow_plane_state
*
diff --git a/include/drm/drm_gem_atomic_helper.h b/include/drm/drm_gem_atomic_helper.h
index 2deb0cd9ebbe..d41877f77b77 100644
--- a/include/drm/drm_gem_atomic_helper.h
+++ b/include/drm/drm_gem_atomic_helper.h
@@ -89,12 +89,10 @@ to_drm_shadow_plane_state(struct drm_plane_state *state)
}
void __drm_gem_duplicate_shadow_plane_state(struct drm_plane *plane,
struct drm_shadow_plane_state *new_shadow_plane_state);
void __drm_gem_destroy_shadow_plane_state(struct drm_shadow_plane_state *shadow_plane_state);
-void __drm_gem_reset_shadow_plane(struct drm_plane *plane,
- struct drm_shadow_plane_state *shadow_plane_state);
void __drm_gem_shadow_plane_state_init(struct drm_plane *plane,
struct drm_shadow_plane_state *shadow_plane_state);
struct drm_plane_state *drm_gem_create_shadow_plane_state(struct drm_plane *plane);
struct drm_plane_state *drm_gem_duplicate_shadow_plane_state(struct drm_plane *plane);
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 05/41] drm/amdgpu: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (3 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 04/41] drm/gem-atomic-helper: Remove __drm_gem_reset_shadow_plane() Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 06/41] drm/fsl-dcu: " Maxime Ripard
` (36 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, alexander.deucher, amd-gfx,
christian.koenig
The plane only initializes a pristine state in its reset hook
using drm_atomic_helper_plane_reset(), which is equivalent to what
atomic_create_state expects. Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: alexander.deucher@amd.com
Cc: amd-gfx@lists.freedesktop.org
Cc: christian.koenig@amd.com
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c
index c835504fdf2b..8a6275eec3eb 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c
@@ -142,11 +142,11 @@ static const struct drm_connector_helper_funcs amdgpu_vkms_conn_helper_funcs = {
static const struct drm_plane_funcs amdgpu_vkms_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_cleanup,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
};
static void amdgpu_vkms_plane_atomic_update(struct drm_plane *plane,
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 06/41] drm/fsl-dcu: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (4 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 05/41] drm/amdgpu: Convert to atomic_create_state Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 07/41] drm/hisilicon/kirin: " Maxime Ripard
` (35 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, alison.wang, stefan
The plane only initializes a pristine state in its reset hook
using drm_atomic_helper_plane_reset(), which is equivalent to what
atomic_create_state expects. Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: alison.wang@nxp.com
Cc: stefan@agner.ch
---
drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c
index b34f880c1e09..92794b337512 100644
--- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c
+++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c
@@ -175,11 +175,11 @@ static const struct drm_plane_helper_funcs fsl_dcu_drm_plane_helper_funcs = {
static const struct drm_plane_funcs fsl_dcu_drm_plane_funcs = {
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
.destroy = drm_plane_helper_destroy,
.disable_plane = drm_atomic_helper_disable_plane,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.update_plane = drm_atomic_helper_update_plane,
};
static const u32 fsl_dcu_drm_plane_formats[] = {
DRM_FORMAT_RGB565,
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 07/41] drm/hisilicon/kirin: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (5 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 06/41] drm/fsl-dcu: " Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 08/41] drm/imx/dc: " Maxime Ripard
` (34 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, John Stultz, jstultz, sumit.semwal,
xinliang.liu, yongqin.liu
The plane only initializes a pristine state in its reset hook
using drm_atomic_helper_plane_reset(), which is equivalent to what
atomic_create_state expects. Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Acked-by: John Stultz <jstultz@google.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: jstultz@google.com
Cc: sumit.semwal@linaro.org
Cc: xinliang.liu@linaro.org
Cc: yongqin.liu@linaro.org
---
drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
index 5f4e738bc94e..bca839dd600b 100644
--- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
@@ -835,11 +835,11 @@ static const struct drm_plane_helper_funcs ade_plane_helper_funcs = {
static struct drm_plane_funcs ade_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_cleanup,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
};
static void *ade_hw_ctx_alloc(struct platform_device *pdev,
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 08/41] drm/imx/dc: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (6 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 07/41] drm/hisilicon/kirin: " Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 09/41] drm/kmb: " Maxime Ripard
` (33 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, Frank.Li, Sascha Hauer, festevam, imx,
kernel, victor.liu
The plane only initializes a pristine state in its reset hook
using drm_atomic_helper_plane_reset(), which is equivalent to what
atomic_create_state expects. Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: Frank.Li@nxp.com
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: festevam@gmail.com
Cc: imx@lists.linux.dev
Cc: kernel@pengutronix.de
Cc: victor.liu@nxp.com
---
drivers/gpu/drm/imx/dc/dc-plane.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/imx/dc/dc-plane.c b/drivers/gpu/drm/imx/dc/dc-plane.c
index dea7404fe659..62dd0576fadc 100644
--- a/drivers/gpu/drm/imx/dc/dc-plane.c
+++ b/drivers/gpu/drm/imx/dc/dc-plane.c
@@ -37,11 +37,11 @@ static const uint32_t dc_plane_formats[] = {
static const struct drm_plane_funcs dc_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_cleanup,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
};
static inline struct dc_plane *to_dc_plane(struct drm_plane *plane)
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 09/41] drm/kmb: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (7 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 08/41] drm/imx/dc: " Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 10/41] drm/logicvc: " Maxime Ripard
` (32 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, anitha.chrisanthus
The plane only initializes a pristine state in its reset hook
using drm_atomic_helper_plane_reset(), which is equivalent to what
atomic_create_state expects. Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: anitha.chrisanthus@intel.com
---
drivers/gpu/drm/kmb/kmb_plane.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/kmb/kmb_plane.c b/drivers/gpu/drm/kmb/kmb_plane.c
index a0001edb1e21..1742c2c6dfd8 100644
--- a/drivers/gpu/drm/kmb/kmb_plane.c
+++ b/drivers/gpu/drm/kmb/kmb_plane.c
@@ -559,11 +559,11 @@ void kmb_plane_destroy(struct drm_plane *plane)
static const struct drm_plane_funcs kmb_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = kmb_plane_destroy,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
};
struct kmb_plane *kmb_plane_init(struct drm_device *drm)
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 10/41] drm/logicvc: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (8 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 09/41] drm/kmb: " Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 11/41] drm/loongson: " Maxime Ripard
` (31 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, paulk
The plane only initializes a pristine state in its reset hook
using drm_atomic_helper_plane_reset(), which is equivalent to what
atomic_create_state expects. Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: paulk@sys-base.io
---
drivers/gpu/drm/logicvc/logicvc_layer.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/logicvc/logicvc_layer.c b/drivers/gpu/drm/logicvc/logicvc_layer.c
index 7f5ba000188a..947416856381 100644
--- a/drivers/gpu/drm/logicvc/logicvc_layer.c
+++ b/drivers/gpu/drm/logicvc/logicvc_layer.c
@@ -249,11 +249,11 @@ static struct drm_plane_helper_funcs logicvc_plane_helper_funcs = {
static const struct drm_plane_funcs logicvc_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_cleanup,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
};
int logicvc_layer_buffer_find_setup(struct logicvc_drm *logicvc,
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 11/41] drm/loongson: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (9 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 10/41] drm/logicvc: " Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 12/41] drm/lcdif: " Maxime Ripard
` (30 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, chenhuacai, jeffbai, lvjianmin,
wuqianhai, xry111, zhengxingda
The plane only initializes a pristine state in its reset hook
using drm_atomic_helper_plane_reset(), which is equivalent to what
atomic_create_state expects. Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: chenhuacai@kernel.org
Cc: jeffbai@aosc.io
Cc: lvjianmin@loongson.cn
Cc: wuqianhai@loongson.cn
Cc: xry111@xry111.site
Cc: zhengxingda@iscas.ac.cn
---
drivers/gpu/drm/loongson/lsdc_plane.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/loongson/lsdc_plane.c b/drivers/gpu/drm/loongson/lsdc_plane.c
index bea42215796d..25a38e6a6e51 100644
--- a/drivers/gpu/drm/loongson/lsdc_plane.c
+++ b/drivers/gpu/drm/loongson/lsdc_plane.c
@@ -450,11 +450,11 @@ static void lsdc_plane_atomic_print_state(struct drm_printer *p,
static const struct drm_plane_funcs lsdc_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_cleanup,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
.atomic_print_state = lsdc_plane_atomic_print_state,
};
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 12/41] drm/lcdif: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (10 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 11/41] drm/loongson: " Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 13/41] drm/mxsfb: " Maxime Ripard
` (29 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, Frank.Li, Sascha Hauer, festevam, imx,
kernel, marex, stefan
The plane only initializes a pristine state in its reset hook
using drm_atomic_helper_plane_reset(), which is equivalent to what
atomic_create_state expects. Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: Frank.Li@nxp.com
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: festevam@gmail.com
Cc: imx@lists.linux.dev
Cc: kernel@pengutronix.de
Cc: marex@denx.de
Cc: stefan@agner.ch
---
drivers/gpu/drm/mxsfb/lcdif_kms.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mxsfb/lcdif_kms.c b/drivers/gpu/drm/mxsfb/lcdif_kms.c
index 5f0fbec3a390..c67f58a408d0 100644
--- a/drivers/gpu/drm/mxsfb/lcdif_kms.c
+++ b/drivers/gpu/drm/mxsfb/lcdif_kms.c
@@ -721,11 +721,11 @@ static const struct drm_plane_helper_funcs lcdif_plane_primary_helper_funcs = {
static const struct drm_plane_funcs lcdif_plane_funcs = {
.format_mod_supported = lcdif_format_mod_supported,
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_cleanup,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
};
static const u32 lcdif_primary_plane_formats[] = {
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 13/41] drm/mxsfb: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (11 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 12/41] drm/lcdif: " Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 14/41] drm/qxl: " Maxime Ripard
` (28 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, Frank.Li, Sascha Hauer, festevam, imx,
kernel, marex, stefan
The plane only initializes a pristine state in its reset hook
using drm_atomic_helper_plane_reset(), which is equivalent to what
atomic_create_state expects. Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: Frank.Li@nxp.com
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: festevam@gmail.com
Cc: imx@lists.linux.dev
Cc: kernel@pengutronix.de
Cc: marex@denx.de
Cc: stefan@agner.ch
---
drivers/gpu/drm/mxsfb/mxsfb_kms.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mxsfb/mxsfb_kms.c b/drivers/gpu/drm/mxsfb/mxsfb_kms.c
index 36ea285182b4..6e82f8f76793 100644
--- a/drivers/gpu/drm/mxsfb/mxsfb_kms.c
+++ b/drivers/gpu/drm/mxsfb/mxsfb_kms.c
@@ -641,11 +641,11 @@ static const struct drm_plane_helper_funcs mxsfb_plane_overlay_helper_funcs = {
static const struct drm_plane_funcs mxsfb_plane_funcs = {
.format_mod_supported = mxsfb_format_mod_supported,
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_cleanup,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
};
static const uint32_t mxsfb_primary_plane_formats[] = {
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 14/41] drm/qxl: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (12 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 13/41] drm/mxsfb: " Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 15/41] drm/rockchip: " Maxime Ripard
` (27 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, airlied, kraxel, spice-devel,
virtualization
The plane only initializes a pristine state in its reset hook
using drm_atomic_helper_plane_reset(), which is equivalent to what
atomic_create_state expects. Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: airlied@redhat.com
Cc: kraxel@redhat.com
Cc: spice-devel@lists.freedesktop.org
Cc: virtualization@lists.linux.dev
---
drivers/gpu/drm/qxl/qxl_display.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index 7654575bcf00..9a2c2010dc7a 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -927,11 +927,11 @@ static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = {
static const struct drm_plane_funcs qxl_cursor_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_helper_destroy,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
};
static const uint32_t qxl_primary_plane_formats[] = {
@@ -949,11 +949,11 @@ static const struct drm_plane_helper_funcs primary_helper_funcs = {
static const struct drm_plane_funcs qxl_primary_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_helper_destroy,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
};
static struct drm_plane *qxl_create_plane(struct qxl_device *qdev,
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 15/41] drm/rockchip: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (13 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 14/41] drm/qxl: " Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-09 10:00 ` Heiko Stübner
2026-09-08 14:46 ` [PATCH v4 16/41] drm/sprd: " Maxime Ripard
` (26 subsequent siblings)
41 siblings, 1 reply; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, andy.yan, heiko, hjc, linux-rockchip
The plane only initializes a pristine state in its reset hook
using drm_atomic_helper_plane_reset(), which is equivalent to what
atomic_create_state expects. Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: andy.yan@rock-chips.com
Cc: heiko@sntech.de
Cc: hjc@rock-chips.com
Cc: linux-rockchip@lists.infradead.org
---
drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 2 +-
drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index bd02597dc2d7..b327a475b5bb 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -1155,11 +1155,11 @@ static const struct drm_plane_helper_funcs plane_helper_funcs = {
static const struct drm_plane_funcs vop_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_cleanup,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
.format_mod_supported = rockchip_mod_supported,
};
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
index b2f3a579bbe5..bfb384142568 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
@@ -1495,11 +1495,11 @@ static const struct drm_plane_helper_funcs vop2_plane_helper_funcs = {
static const struct drm_plane_funcs vop2_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_cleanup,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
.format_mod_supported = rockchip_vop2_mod_supported,
};
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 16/41] drm/sprd: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (14 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 15/41] drm/rockchip: " Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 17/41] drm/sti: " Maxime Ripard
` (25 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, Baolin Wang, orsonzhai, zhang.lyra
The plane only initializes a pristine state in its reset hook
using drm_atomic_helper_plane_reset(), which is equivalent to what
atomic_create_state expects. Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: orsonzhai@gmail.com
Cc: zhang.lyra@gmail.com
---
drivers/gpu/drm/sprd/sprd_dpu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/sprd/sprd_dpu.c b/drivers/gpu/drm/sprd/sprd_dpu.c
index 7f0bc1e31076..8fa3c733cc4f 100644
--- a/drivers/gpu/drm/sprd/sprd_dpu.c
+++ b/drivers/gpu/drm/sprd/sprd_dpu.c
@@ -576,11 +576,11 @@ static const struct drm_plane_helper_funcs sprd_plane_helper_funcs = {
static const struct drm_plane_funcs sprd_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_cleanup,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
};
static struct sprd_plane *sprd_planes_init(struct drm_device *drm)
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 17/41] drm/sti: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (15 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 16/41] drm/sprd: " Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 18/41] drm/stm: " Maxime Ripard
` (24 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, alain.volmat, rgallaispou
The plane only initializes a pristine state in its reset hook
using drm_atomic_helper_plane_reset(), which is equivalent to what
atomic_create_state expects. Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: alain.volmat@foss.st.com
Cc: rgallaispou@gmail.com
---
drivers/gpu/drm/sti/sti_cursor.c | 2 +-
drivers/gpu/drm/sti/sti_gdp.c | 2 +-
drivers/gpu/drm/sti/sti_hqvdp.c | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/sti/sti_cursor.c b/drivers/gpu/drm/sti/sti_cursor.c
index d0b89b28e50c..699bcc452024 100644
--- a/drivers/gpu/drm/sti/sti_cursor.c
+++ b/drivers/gpu/drm/sti/sti_cursor.c
@@ -354,11 +354,11 @@ static int sti_cursor_late_register(struct drm_plane *drm_plane)
static const struct drm_plane_funcs sti_cursor_plane_helpers_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_cleanup,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
.late_register = sti_cursor_late_register,
};
diff --git a/drivers/gpu/drm/sti/sti_gdp.c b/drivers/gpu/drm/sti/sti_gdp.c
index 9a17b590aa3d..89511abd4b39 100644
--- a/drivers/gpu/drm/sti/sti_gdp.c
+++ b/drivers/gpu/drm/sti/sti_gdp.c
@@ -909,11 +909,11 @@ static int sti_gdp_late_register(struct drm_plane *drm_plane)
static const struct drm_plane_funcs sti_gdp_plane_helpers_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_cleanup,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
.late_register = sti_gdp_late_register,
};
diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c
index cf1ed8a33b8e..4787c6f2b8c1 100644
--- a/drivers/gpu/drm/sti/sti_hqvdp.c
+++ b/drivers/gpu/drm/sti/sti_hqvdp.c
@@ -1287,11 +1287,11 @@ static int sti_hqvdp_late_register(struct drm_plane *drm_plane)
static const struct drm_plane_funcs sti_hqvdp_plane_helpers_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_cleanup,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
.late_register = sti_hqvdp_late_register,
};
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 18/41] drm/stm: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (16 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 17/41] drm/sti: " Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 19/41] drm/tests: kunit: " Maxime Ripard
` (23 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, alexandre.torgue, mcoquelin.stm32,
philippe.cornu, raphael.gallais-pou, yannick.fertre
The plane only initializes a pristine state in its reset hook
using drm_atomic_helper_plane_reset(), which is equivalent to what
atomic_create_state expects. Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: alexandre.torgue@foss.st.com
Cc: mcoquelin.stm32@gmail.com
Cc: philippe.cornu@foss.st.com
Cc: raphael.gallais-pou@foss.st.com
Cc: yannick.fertre@foss.st.com
---
drivers/gpu/drm/stm/ltdc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c
index 775846bb502b..5311e0b3e8dc 100644
--- a/drivers/gpu/drm/stm/ltdc.c
+++ b/drivers/gpu/drm/stm/ltdc.c
@@ -1552,11 +1552,11 @@ static void ltdc_plane_atomic_print_state(struct drm_printer *p,
}
static const struct drm_plane_funcs ltdc_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
.atomic_print_state = ltdc_plane_atomic_print_state,
};
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 19/41] drm/tests: kunit: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (17 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 18/41] drm/stm: " Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 20/41] drm/tilcdc: " Maxime Ripard
` (22 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard
The plane only initializes a pristine state in its reset hook
using drm_atomic_helper_plane_reset(), which is equivalent to what
atomic_create_state expects. Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
drivers/gpu/drm/tests/drm_kunit_helpers.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/tests/drm_kunit_helpers.c b/drivers/gpu/drm/tests/drm_kunit_helpers.c
index 1afa9b162355..63d024946500 100644
--- a/drivers/gpu/drm/tests/drm_kunit_helpers.c
+++ b/drivers/gpu/drm/tests/drm_kunit_helpers.c
@@ -140,11 +140,11 @@ static const struct drm_plane_helper_funcs default_plane_helper_funcs = {
};
static const struct drm_plane_funcs default_plane_funcs = {
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
};
/**
* drm_kunit_helper_create_primary_plane - Creates a mock primary plane for a KUnit test
* @test: The test context object
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 20/41] drm/tilcdc: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (18 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 19/41] drm/tests: kunit: " Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 21/41] drm/vboxvideo: " Maxime Ripard
` (21 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, jyri.sarha, tomi.valkeinen
The plane only initializes a pristine state in its reset hook
using drm_atomic_helper_plane_reset(), which is equivalent to what
atomic_create_state expects. Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: jyri.sarha@iki.fi
Cc: tomi.valkeinen@ideasonboard.com
---
drivers/gpu/drm/tilcdc/tilcdc_plane.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_plane.c b/drivers/gpu/drm/tilcdc/tilcdc_plane.c
index d2678af5dc22..eb0a5562421f 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_plane.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_plane.c
@@ -12,11 +12,11 @@
#include "tilcdc_drv.h"
static const struct drm_plane_funcs tilcdc_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
};
static int tilcdc_plane_atomic_check(struct drm_plane *plane,
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 21/41] drm/vboxvideo: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (19 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 20/41] drm/tilcdc: " Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 22/41] drm/verisilicon: " Maxime Ripard
` (20 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, hansg
The plane only initializes a pristine state in its reset hook
using drm_atomic_helper_plane_reset(), which is equivalent to what
atomic_create_state expects. Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: hansg@kernel.org
---
drivers/gpu/drm/vboxvideo/vbox_mode.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/vboxvideo/vbox_mode.c b/drivers/gpu/drm/vboxvideo/vbox_mode.c
index d2d75367b077..7f21b11dedbe 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_mode.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_mode.c
@@ -496,11 +496,11 @@ static const struct drm_plane_helper_funcs vbox_primary_helper_funcs = {
static const struct drm_plane_funcs vbox_primary_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_helper_destroy,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
};
static struct drm_plane *vbox_create_plane(struct vbox_private *vbox,
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 22/41] drm/verisilicon: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (20 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 21/41] drm/vboxvideo: " Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 23/41] drm/virtio: " Maxime Ripard
` (19 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, zhengxingda
The plane reset implementation creates a custom state subclass, but
only initializes a pristine state without resetting any hardware. This
is equivalent to what atomic_create_state expects. Convert to it.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: zhengxingda@iscas.ac.cn
---
drivers/gpu/drm/verisilicon/vs_cursor_plane.c | 2 +-
drivers/gpu/drm/verisilicon/vs_plane.c | 14 +++++---------
drivers/gpu/drm/verisilicon/vs_plane.h | 2 +-
drivers/gpu/drm/verisilicon/vs_primary_plane.c | 2 +-
4 files changed, 8 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/verisilicon/vs_cursor_plane.c b/drivers/gpu/drm/verisilicon/vs_cursor_plane.c
index 05e7a04e614c..6a7fd9e179bb 100644
--- a/drivers/gpu/drm/verisilicon/vs_cursor_plane.c
+++ b/drivers/gpu/drm/verisilicon/vs_cursor_plane.c
@@ -229,14 +229,14 @@ static const struct drm_plane_helper_funcs vs_cursor_plane_helper_funcs = {
.atomic_enable = vs_cursor_plane_atomic_enable,
.atomic_disable = vs_cursor_plane_atomic_disable,
};
static const struct drm_plane_funcs vs_cursor_plane_funcs = {
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.disable_plane = drm_atomic_helper_disable_plane,
- .reset = drm_atomic_helper_plane_reset,
.update_plane = drm_atomic_helper_update_plane,
};
static const u32 vs_cursor_plane_formats[] = {
DRM_FORMAT_ARGB8888,
diff --git a/drivers/gpu/drm/verisilicon/vs_plane.c b/drivers/gpu/drm/verisilicon/vs_plane.c
index 38b8b536eccb..864b54121b95 100644
--- a/drivers/gpu/drm/verisilicon/vs_plane.c
+++ b/drivers/gpu/drm/verisilicon/vs_plane.c
@@ -134,21 +134,17 @@ void vs_plane_destroy_state(struct drm_plane *plane,
__drm_atomic_helper_plane_destroy_state(state);
kfree(state);
}
/* Called during init to allocate the plane's atomic state. */
-void vs_plane_reset(struct drm_plane *plane)
+struct drm_plane_state *vs_plane_create_state(struct drm_plane *plane)
{
struct vs_plane_state *vs_state;
- if (plane->state) {
- __drm_atomic_helper_plane_destroy_state(plane->state);
- kfree(plane->state);
- plane->state = NULL;
- }
-
vs_state = kzalloc_obj(*vs_state, GFP_KERNEL);
if (!vs_state)
- return;
+ return ERR_PTR(-ENOMEM);
- __drm_atomic_helper_plane_reset(plane, &vs_state->base);
+ __drm_atomic_helper_plane_state_init(&vs_state->base, plane);
+
+ return &vs_state->base;
}
diff --git a/drivers/gpu/drm/verisilicon/vs_plane.h b/drivers/gpu/drm/verisilicon/vs_plane.h
index e4f82f1fc6e9..b4ce14098aa3 100644
--- a/drivers/gpu/drm/verisilicon/vs_plane.h
+++ b/drivers/gpu/drm/verisilicon/vs_plane.h
@@ -77,11 +77,11 @@ static inline struct vs_plane_state *to_vs_plane_state(struct drm_plane_state *s
int drm_format_to_vs_format(u32 drm_format, struct vs_format *vs_format);
struct drm_plane_state *vs_plane_duplicate_state(struct drm_plane *plane);
void vs_plane_destroy_state(struct drm_plane *plane,
struct drm_plane_state *state);
-void vs_plane_reset(struct drm_plane *plane);
+struct drm_plane_state *vs_plane_create_state(struct drm_plane *plane);
struct drm_plane *vs_primary_plane_init(struct drm_device *dev, struct vs_dc *dc);
struct drm_plane *vs_cursor_plane_init(struct drm_device *dev, struct vs_dc *dc);
#endif /* _VS_PLANE_H_ */
diff --git a/drivers/gpu/drm/verisilicon/vs_primary_plane.c b/drivers/gpu/drm/verisilicon/vs_primary_plane.c
index 2750016a7f2c..20a820f1ef30 100644
--- a/drivers/gpu/drm/verisilicon/vs_primary_plane.c
+++ b/drivers/gpu/drm/verisilicon/vs_primary_plane.c
@@ -158,14 +158,14 @@ static const struct drm_plane_helper_funcs vs_primary_plane_helper_funcs = {
.atomic_enable = vs_primary_plane_atomic_enable,
.atomic_disable = vs_primary_plane_atomic_disable,
};
static const struct drm_plane_funcs vs_primary_plane_funcs = {
+ .atomic_create_state = vs_plane_create_state,
.atomic_destroy_state = vs_plane_destroy_state,
.atomic_duplicate_state = vs_plane_duplicate_state,
.disable_plane = drm_atomic_helper_disable_plane,
- .reset = vs_plane_reset,
.update_plane = drm_atomic_helper_update_plane,
};
struct drm_plane *vs_primary_plane_init(struct drm_device *drm_dev, struct vs_dc *dc)
{
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 23/41] drm/virtio: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (21 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 22/41] drm/verisilicon: " Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 24/41] drm/xlnx: " Maxime Ripard
` (18 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, airlied, dmitry.osipenko,
gurchetansingh, kraxel, olvaffe, virtualization
The plane only initializes a pristine state in its reset hook
using drm_atomic_helper_plane_reset(), which is equivalent to what
atomic_create_state expects. Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: airlied@redhat.com
Cc: dmitry.osipenko@collabora.com
Cc: gurchetansingh@chromium.org
Cc: kraxel@redhat.com
Cc: olvaffe@gmail.com
Cc: virtualization@lists.linux.dev
---
drivers/gpu/drm/virtio/virtgpu_plane.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c
index 1d1b27ece62a..52971864db50 100644
--- a/drivers/gpu/drm/virtio/virtgpu_plane.c
+++ b/drivers/gpu/drm/virtio/virtgpu_plane.c
@@ -89,11 +89,11 @@ drm_plane_state *virtio_gpu_plane_duplicate_state(struct drm_plane *plane)
}
static const struct drm_plane_funcs virtio_gpu_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = virtio_gpu_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
};
static int virtio_gpu_plane_atomic_check(struct drm_plane *plane,
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 24/41] drm/xlnx: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (22 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 23/41] drm/virtio: " Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 25/41] drm/atomic-state-helper: Remove drm_atomic_helper_plane_reset() Maxime Ripard
` (17 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, michal.simek, tomi.valkeinen
The plane only initializes a pristine state in its reset hook
using drm_atomic_helper_plane_reset(), which is equivalent to what
atomic_create_state expects. Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: michal.simek@amd.com
Cc: tomi.valkeinen@ideasonboard.com
---
drivers/gpu/drm/xlnx/zynqmp_kms.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/xlnx/zynqmp_kms.c b/drivers/gpu/drm/xlnx/zynqmp_kms.c
index 0755066a81e7..5274bd3f9078 100644
--- a/drivers/gpu/drm/xlnx/zynqmp_kms.c
+++ b/drivers/gpu/drm/xlnx/zynqmp_kms.c
@@ -139,11 +139,11 @@ static const struct drm_plane_helper_funcs zynqmp_dpsub_plane_helper_funcs = {
static const struct drm_plane_funcs zynqmp_dpsub_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_cleanup,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
};
static int zynqmp_dpsub_create_planes(struct zynqmp_dpsub *dpsub)
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 25/41] drm/atomic-state-helper: Remove drm_atomic_helper_plane_reset()
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (23 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 24/41] drm/xlnx: " Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 26/41] drm/amdgpu_dm: Convert to atomic_create_state Maxime Ripard
` (16 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard
drm_atomic_helper_plane_reset() is no longer used: all callers now go
through drm_atomic_helper_plane_create_state(). Remove it.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
drivers/gpu/drm/drm_atomic_state_helper.c | 19 -------------------
include/drm/drm_atomic_state_helper.h | 1 -
include/drm/drm_plane.h | 3 ---
3 files changed, 23 deletions(-)
diff --git a/drivers/gpu/drm/drm_atomic_state_helper.c b/drivers/gpu/drm/drm_atomic_state_helper.c
index d90d1d7c9cf9..f184ce76e090 100644
--- a/drivers/gpu/drm/drm_atomic_state_helper.c
+++ b/drivers/gpu/drm/drm_atomic_state_helper.c
@@ -344,29 +344,10 @@ void __drm_atomic_helper_plane_reset(struct drm_plane *plane,
plane->state = plane_state;
}
EXPORT_SYMBOL(__drm_atomic_helper_plane_reset);
-/**
- * drm_atomic_helper_plane_reset - default &drm_plane_funcs.reset hook for planes
- * @plane: drm plane
- *
- * Resets the atomic state for @plane by freeing the state pointer (which might
- * be NULL, e.g. at driver load time) and allocating a new empty state object.
- */
-void drm_atomic_helper_plane_reset(struct drm_plane *plane)
-{
- if (plane->state)
- __drm_atomic_helper_plane_destroy_state(plane->state);
-
- kfree(plane->state);
- plane->state = kzalloc_obj(*plane->state);
- if (plane->state)
- __drm_atomic_helper_plane_reset(plane, plane->state);
-}
-EXPORT_SYMBOL(drm_atomic_helper_plane_reset);
-
/**
* drm_atomic_helper_plane_create_state - default &drm_plane_funcs.atomic_create_state hook for planes
* @plane: plane object
*
* Allocates and initializes pristine @drm_plane_state.
diff --git a/include/drm/drm_atomic_state_helper.h b/include/drm/drm_atomic_state_helper.h
index 34a599c3d86d..60635eb34758 100644
--- a/include/drm/drm_atomic_state_helper.h
+++ b/include/drm/drm_atomic_state_helper.h
@@ -59,11 +59,10 @@ void __drm_atomic_helper_plane_state_init(struct drm_plane_state *state,
struct drm_plane *plane);
struct drm_plane_state *
drm_atomic_helper_plane_create_state(struct drm_plane *plane);
void __drm_atomic_helper_plane_reset(struct drm_plane *plane,
struct drm_plane_state *state);
-void drm_atomic_helper_plane_reset(struct drm_plane *plane);
void __drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane,
struct drm_plane_state *state);
struct drm_plane_state *
drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane);
void __drm_atomic_helper_plane_destroy_state(struct drm_plane_state *state);
diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h
index 2c5a5a70a71b..e757e9dbf132 100644
--- a/include/drm/drm_plane.h
+++ b/include/drm/drm_plane.h
@@ -363,13 +363,10 @@ struct drm_plane_funcs {
* @reset:
*
* Reset plane hardware and software state to off. This function isn't
* called by the core directly, only through drm_mode_config_reset().
* It's not a helper hook only for historical reasons.
- *
- * Atomic drivers can use drm_atomic_helper_plane_reset() to reset
- * atomic state using this hook.
*/
void (*reset)(struct drm_plane *plane);
/**
* @set_property:
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 26/41] drm/amdgpu_dm: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (24 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 25/41] drm/atomic-state-helper: Remove drm_atomic_helper_plane_reset() Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-10 16:31 ` Leo Li
2026-09-08 14:46 ` [PATCH v4 27/41] drm/armada: " Maxime Ripard
` (15 subsequent siblings)
41 siblings, 1 reply; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, alexander.deucher, amd-gfx,
christian.koenig, harry.wentland, siqueira, sunpeng.li
The plane reset implementation creates a custom state
subclass, but only initializes a pristine state without resetting any
hardware. This is equivalent to what atomic_create_state expects.
Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: alexander.deucher@amd.com
Cc: amd-gfx@lists.freedesktop.org
Cc: christian.koenig@amd.com
Cc: harry.wentland@amd.com
Cc: siqueira@igalia.com
Cc: sunpeng.li@amd.com
---
.../drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c | 28 ++++++++++++--------
.../drm/amd/display/amdgpu_dm/amdgpu_dm_plane.h | 2 +-
.../display/amdgpu_dm/tests/amdgpu_dm_plane_test.c | 30 ++++++++--------------
3 files changed, 29 insertions(+), 31 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
index 824ef3ce5de0..f9655f534d3b 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
@@ -1786,28 +1786,27 @@ static const struct drm_plane_helper_funcs dm_primary_plane_helper_funcs = {
.atomic_async_update = amdgpu_dm_plane_atomic_async_update,
.get_scanout_buffer = amdgpu_display_get_scanout_buffer,
.panic_flush = amdgpu_dm_plane_panic_flush,
};
-STATIC_IFN_KUNIT void amdgpu_dm_plane_drm_plane_reset(struct drm_plane *plane)
+STATIC_IFN_KUNIT struct drm_plane_state *amdgpu_dm_plane_drm_plane_create_state(struct drm_plane *plane)
{
struct dm_plane_state *amdgpu_state;
amdgpu_state = kzalloc_obj(*amdgpu_state);
if (!amdgpu_state)
- return;
+ return ERR_PTR(-ENOMEM);
- if (plane->state)
- plane->funcs->atomic_destroy_state(plane, plane->state);
-
- __drm_atomic_helper_plane_reset(plane, &amdgpu_state->base);
+ __drm_atomic_helper_plane_state_init(&amdgpu_state->base, plane);
amdgpu_state->degamma_tf = AMDGPU_TRANSFER_FUNCTION_DEFAULT;
amdgpu_state->hdr_mult = AMDGPU_HDR_MULT_DEFAULT;
amdgpu_state->shaper_tf = AMDGPU_TRANSFER_FUNCTION_DEFAULT;
amdgpu_state->blend_tf = AMDGPU_TRANSFER_FUNCTION_DEFAULT;
+
+ return &amdgpu_state->base;
}
-EXPORT_IF_KUNIT(amdgpu_dm_plane_drm_plane_reset);
+EXPORT_IF_KUNIT(amdgpu_dm_plane_drm_plane_create_state);
STATIC_IFN_KUNIT struct drm_plane_state *
amdgpu_dm_plane_drm_plane_duplicate_state(struct drm_plane *plane)
{
struct dm_plane_state *dm_plane_state, *old_dm_plane_state;
@@ -2166,11 +2165,11 @@ dm_plane_init_colorops(struct drm_plane *plane)
static const struct drm_plane_funcs dm_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_helper_destroy,
- .reset = amdgpu_dm_plane_drm_plane_reset,
+ .atomic_create_state = amdgpu_dm_plane_drm_plane_create_state,
.atomic_duplicate_state = amdgpu_dm_plane_drm_plane_duplicate_state,
.atomic_destroy_state = amdgpu_dm_plane_drm_plane_destroy_state,
.format_mod_supported = amdgpu_dm_plane_format_mod_supported,
.format_mod_supported_async = amdgpu_dm_plane_format_mod_supported,
#ifdef AMD_PRIVATE_COLOR
@@ -2276,13 +2275,20 @@ int amdgpu_dm_plane_init(struct amdgpu_display_manager *dm,
res = dm_plane_init_colorops(plane);
if (res)
return res;
#endif
- /* Create (reset) the plane state */
- if (plane->funcs->reset)
- plane->funcs->reset(plane);
+ /* Create the plane state */
+ if (plane->funcs->atomic_create_state) {
+ struct drm_plane_state *plane_state;
+
+ plane_state = plane->funcs->atomic_create_state(plane);
+ if (IS_ERR(plane_state))
+ return PTR_ERR(plane_state);
+
+ plane->state = plane_state;
+ }
return 0;
}
bool amdgpu_dm_plane_is_video_format(uint32_t format)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.h
index 092ade738ce9..6aaea290206d 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.h
@@ -115,11 +115,11 @@ void amdgpu_dm_plane_get_min_max_dc_plane_scaling(struct drm_device *dev,
int amdgpu_dm_plane_atomic_async_check(struct drm_plane *plane,
struct drm_atomic_commit *state, bool flip);
int amdgpu_dm_plane_atomic_check(struct drm_plane *plane,
struct drm_atomic_commit *state);
void amdgpu_dm_plane_panic_flush(struct drm_plane *plane);
-void amdgpu_dm_plane_drm_plane_reset(struct drm_plane *plane);
+struct drm_plane_state *amdgpu_dm_plane_drm_plane_create_state(struct drm_plane *plane);
struct drm_plane_state *amdgpu_dm_plane_drm_plane_duplicate_state(struct drm_plane *plane);
void amdgpu_dm_plane_drm_plane_destroy_state(struct drm_plane *plane,
struct drm_plane_state *state);
void amdgpu_dm_plane_add_modifier_dedup(uint64_t **mods, uint64_t *size,
uint64_t *cap, uint64_t mod);
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_plane_test.c b/drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_plane_test.c
index ba97092c7bb8..ab425ee14f30 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_plane_test.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_plane_test.c
@@ -2922,40 +2922,32 @@ static void dm_test_panic_flush_no_dc_state(struct kunit *test)
static const struct drm_plane_funcs dm_test_plane_reset_funcs = {
.atomic_destroy_state = amdgpu_dm_plane_drm_plane_destroy_state,
};
/**
- * dm_test_plane_reset_initializes_state() - Verify reset installs default state.
+ * dm_test_plane_create_state_initializes_state() - Verify create_state allocates default state.
* @test: KUnit test context.
*
- * Verify amdgpu_dm_plane_drm_plane_reset() destroys the existing plane state,
- * allocates a fresh dm_plane_state, and initializes the AMD-specific transfer
- * function and HDR multiplier defaults.
+ * Verify amdgpu_dm_plane_drm_plane_create_state() allocates a fresh
+ * dm_plane_state, and initializes the AMD-specific transfer function and HDR
+ * multiplier defaults.
*/
-static void dm_test_plane_reset_initializes_state(struct kunit *test)
+static void dm_test_plane_create_state_initializes_state(struct kunit *test)
{
- struct dm_plane_state *old_state;
+ struct drm_plane_state *plane_state;
struct dm_plane_state *new_state;
struct drm_plane *plane;
plane = kunit_kzalloc(test, sizeof(*plane), GFP_KERNEL);
KUNIT_ASSERT_NOT_NULL(test, plane);
- /*
- * Provide an existing state plus a funcs table so reset exercises the
- * destroy-existing-state path. The destroy hook frees this state, so it
- * must be a plain (non-KUnit-managed) allocation.
- */
- old_state = kzalloc(sizeof(*old_state), GFP_KERNEL);
- KUNIT_ASSERT_NOT_NULL(test, old_state);
plane->funcs = &dm_test_plane_reset_funcs;
- plane->state = &old_state->base;
- amdgpu_dm_plane_drm_plane_reset(plane);
+ plane_state = amdgpu_dm_plane_drm_plane_create_state(plane);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, plane_state);
- KUNIT_ASSERT_NOT_NULL(test, plane->state);
- new_state = to_dm_plane_state(plane->state);
+ new_state = to_dm_plane_state(plane_state);
KUNIT_EXPECT_EQ(test, new_state->degamma_tf, AMDGPU_TRANSFER_FUNCTION_DEFAULT);
KUNIT_EXPECT_EQ(test, new_state->hdr_mult, AMDGPU_HDR_MULT_DEFAULT);
KUNIT_EXPECT_EQ(test, new_state->shaper_tf, AMDGPU_TRANSFER_FUNCTION_DEFAULT);
KUNIT_EXPECT_EQ(test, new_state->blend_tf, AMDGPU_TRANSFER_FUNCTION_DEFAULT);
@@ -3096,12 +3088,12 @@ static struct kunit_case amdgpu_dm_plane_test_cases[] = {
KUNIT_CASE(dm_test_atomic_check_helper_failure),
KUNIT_CASE(dm_test_atomic_check_color_pipeline_conflict),
KUNIT_CASE(dm_test_atomic_check_scaling_failure),
/* amdgpu_dm_plane_panic_flush() */
KUNIT_CASE(dm_test_panic_flush_no_dc_state),
- /* amdgpu_dm_plane_drm_plane_reset() */
- KUNIT_CASE(dm_test_plane_reset_initializes_state),
+ /* amdgpu_dm_plane_drm_plane_create_state() */
+ KUNIT_CASE(dm_test_plane_create_state_initializes_state),
/* amdgpu_dm_plane_drm_plane_duplicate_state() */
KUNIT_CASE(dm_test_plane_duplicate_state_copies_fields),
/* amdgpu_dm_plane_drm_plane_destroy_state() */
KUNIT_CASE(dm_test_plane_destroy_state_minimal),
/* amdgpu_dm_plane_add_modifier() */
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 27/41] drm/armada: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (25 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 26/41] drm/amdgpu_dm: Convert to atomic_create_state Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 28/41] drm/atmel-hlcdc: Drop spurious csc_init call from reset Maxime Ripard
` (14 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, linux
The plane reset implementation creates a custom state
subclass, but only initializes a pristine state without resetting any
hardware. This is equivalent to what atomic_create_state expects.
Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: linux@armlinux.org.uk
---
drivers/gpu/drm/armada/armada_overlay.c | 39 +++++++++++++++------------------
drivers/gpu/drm/armada/armada_plane.c | 15 +++++++------
drivers/gpu/drm/armada/armada_plane.h | 2 +-
3 files changed, 27 insertions(+), 29 deletions(-)
diff --git a/drivers/gpu/drm/armada/armada_overlay.c b/drivers/gpu/drm/armada/armada_overlay.c
index 3da0b857ef95..e75706b85dd1 100644
--- a/drivers/gpu/drm/armada/armada_overlay.c
+++ b/drivers/gpu/drm/armada/armada_overlay.c
@@ -299,34 +299,31 @@ armada_overlay_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
fail:
drm_atomic_commit_put(state);
return ret;
}
-static void armada_overlay_reset(struct drm_plane *plane)
+static struct drm_plane_state *armada_overlay_create_state(struct drm_plane *plane)
{
struct armada_overlay_state *state;
- if (plane->state)
- __drm_atomic_helper_plane_destroy_state(plane->state);
- kfree(plane->state);
- plane->state = NULL;
-
state = kzalloc_obj(*state);
- if (state) {
- state->colorkey_yr = 0xfefefe00;
- state->colorkey_ug = 0x01010100;
- state->colorkey_vb = 0x01010100;
- state->colorkey_mode = CFG_CKMODE(CKMODE_RGB) |
- CFG_ALPHAM_GRA | CFG_ALPHA(0);
- state->colorkey_enable = ADV_GRACOLORKEY;
- state->brightness = DEFAULT_BRIGHTNESS;
- state->contrast = DEFAULT_CONTRAST;
- state->saturation = DEFAULT_SATURATION;
- __drm_atomic_helper_plane_reset(plane, &state->base.base);
- state->base.base.color_encoding = DEFAULT_ENCODING;
- state->base.base.color_range = DRM_COLOR_YCBCR_LIMITED_RANGE;
- }
+ if (!state)
+ return ERR_PTR(-ENOMEM);
+
+ state->colorkey_yr = 0xfefefe00;
+ state->colorkey_ug = 0x01010100;
+ state->colorkey_vb = 0x01010100;
+ state->colorkey_mode = CFG_CKMODE(CKMODE_RGB) | CFG_ALPHAM_GRA | CFG_ALPHA(0);
+ state->colorkey_enable = ADV_GRACOLORKEY;
+ state->brightness = DEFAULT_BRIGHTNESS;
+ state->contrast = DEFAULT_CONTRAST;
+ state->saturation = DEFAULT_SATURATION;
+ __drm_atomic_helper_plane_state_init(&state->base.base, plane);
+ state->base.base.color_encoding = DEFAULT_ENCODING;
+ state->base.base.color_range = DRM_COLOR_YCBCR_LIMITED_RANGE;
+
+ return &state->base.base;
}
static struct drm_plane_state *
armada_overlay_duplicate_state(struct drm_plane *plane)
{
@@ -464,11 +461,11 @@ static int armada_overlay_get_property(struct drm_plane *plane,
static const struct drm_plane_funcs armada_ovl_plane_funcs = {
.update_plane = armada_overlay_plane_update,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_helper_destroy,
- .reset = armada_overlay_reset,
+ .atomic_create_state = armada_overlay_create_state,
.atomic_duplicate_state = armada_overlay_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
.atomic_set_property = armada_overlay_set_property,
.atomic_get_property = armada_overlay_get_property,
};
diff --git a/drivers/gpu/drm/armada/armada_plane.c b/drivers/gpu/drm/armada/armada_plane.c
index fe46a8e4508a..1f5172d6816b 100644
--- a/drivers/gpu/drm/armada/armada_plane.c
+++ b/drivers/gpu/drm/armada/armada_plane.c
@@ -254,19 +254,20 @@ static const struct drm_plane_helper_funcs armada_primary_plane_helper_funcs = {
.atomic_check = armada_drm_plane_atomic_check,
.atomic_update = armada_drm_primary_plane_atomic_update,
.atomic_disable = armada_drm_primary_plane_atomic_disable,
};
-void armada_plane_reset(struct drm_plane *plane)
+struct drm_plane_state *armada_plane_create_state(struct drm_plane *plane)
{
struct armada_plane_state *st;
- if (plane->state)
- __drm_atomic_helper_plane_destroy_state(plane->state);
- kfree(plane->state);
st = kzalloc_obj(*st);
- if (st)
- __drm_atomic_helper_plane_reset(plane, &st->base);
+ if (!st)
+ return ERR_PTR(-ENOMEM);
+
+ __drm_atomic_helper_plane_state_init(&st->base, plane);
+
+ return &st->base;
}
struct drm_plane_state *armada_plane_duplicate_state(struct drm_plane *plane)
{
struct armada_plane_state *st;
@@ -283,11 +284,11 @@ struct drm_plane_state *armada_plane_duplicate_state(struct drm_plane *plane)
static const struct drm_plane_funcs armada_primary_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_helper_destroy,
- .reset = armada_plane_reset,
+ .atomic_create_state = armada_plane_create_state,
.atomic_duplicate_state = armada_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
};
int armada_drm_primary_plane_init(struct drm_device *drm,
diff --git a/drivers/gpu/drm/armada/armada_plane.h b/drivers/gpu/drm/armada/armada_plane.h
index 69bef09ea028..be2b1eaafad7 100644
--- a/drivers/gpu/drm/armada/armada_plane.h
+++ b/drivers/gpu/drm/armada/armada_plane.h
@@ -23,11 +23,11 @@ void armada_drm_plane_calc(struct drm_plane_state *state, u32 addrs[2][3],
u16 pitches[3], bool interlaced);
void armada_drm_plane_cleanup_fb(struct drm_plane *plane,
struct drm_plane_state *old_state);
int armada_drm_plane_atomic_check(struct drm_plane *plane,
struct drm_atomic_commit *state);
-void armada_plane_reset(struct drm_plane *plane);
+struct drm_plane_state *armada_plane_create_state(struct drm_plane *plane);
struct drm_plane_state *armada_plane_duplicate_state(struct drm_plane *plane);
void armada_plane_destroy_state(struct drm_plane *plane,
struct drm_plane_state *state);
int armada_drm_primary_plane_init(struct drm_device *drm,
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 28/41] drm/atmel-hlcdc: Drop spurious csc_init call from reset
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (26 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 27/41] drm/armada: " Maxime Ripard
@ 2026-09-08 14:46 ` Maxime Ripard
2026-09-10 6:48 ` Thomas Zimmermann
2026-09-08 14:47 ` [PATCH v4 29/41] drm/atmel-hlcdc: Convert to atomic_create_state Maxime Ripard
` (13 subsequent siblings)
41 siblings, 1 reply; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:46 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, Dharma Balasubiramani,
Ludovic Desroches, Manikandan Muralidharan
The lcdc_csc_init callback was introduced in commit aa71584b323a ("drm:
atmel-hlcdc: add driver ops to differentiate HLCDC and XLCDC IP") and
called only once, at init time, from atmel_hlcdc_plane_init_properties().
commit 81af99cbd9e4 ("drm/atmel-hlcdc: destroy properly the plane state
in the reset callback") then reworked the reset hook to use
atmel_hlcdc_plane_atomic_destroy_state() instead of duplicating the
code. However, it also introduced a new call to lcdc_csc_init in the
reset path that wasn't there before and wasn't mentioned in the commit
log.
Since CSC coefficients are hardware constants that only need to be
written once at init time. This also prevents the conversion to
atomic_create_state, which must not have any hardware side-effect.
Fixes: 81af99cbd9e4 ("drm/atmel-hlcdc: destroy properly the plane state in the reset callback")
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: Dharma Balasubiramani <dharma.b@microchip.com>
Cc: Ludovic Desroches <ludovic.desroches@microchip.com>
Cc: Manikandan Muralidharan <manikandan.m@microchip.com>
---
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
index f17a832351e9..70a1cef24388 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
@@ -1184,12 +1184,10 @@ static void atmel_hlcdc_plane_atomic_destroy_state(struct drm_plane *p,
}
static void atmel_hlcdc_plane_reset(struct drm_plane *p)
{
struct atmel_hlcdc_plane_state *state;
- struct atmel_hlcdc_dc *dc = p->dev->dev_private;
- struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p);
if (p->state) {
atmel_hlcdc_plane_atomic_destroy_state(p, p->state);
p->state = NULL;
}
@@ -1202,13 +1200,10 @@ static void atmel_hlcdc_plane_reset(struct drm_plane *p)
"Failed to allocate initial plane state\n");
return;
}
__drm_atomic_helper_plane_reset(p, &state->base);
}
-
- if (plane->layer.desc->layout.csc)
- dc->desc->ops->lcdc_csc_init(plane, plane->layer.desc);
}
static const struct drm_plane_funcs layer_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 29/41] drm/atmel-hlcdc: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (27 preceding siblings ...)
2026-09-08 14:46 ` [PATCH v4 28/41] drm/atmel-hlcdc: Drop spurious csc_init call from reset Maxime Ripard
@ 2026-09-08 14:47 ` Maxime Ripard
2026-09-08 14:47 ` [PATCH v4 30/41] drm/exynos: " Maxime Ripard
` (12 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:47 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, Manikandan Muralidharan,
alexandre.belloni, claudiu.beznea, dharma.b, manikandan.m,
nicolas.ferre
The plane reset implementation creates a custom state
subclass, but only initializes a pristine state without resetting any
hardware. This is equivalent to what atomic_create_state expects.
Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Tested-by: Manikandan Muralidharan <manikandan.m@microchip.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: alexandre.belloni@bootlin.com
Cc: claudiu.beznea@tuxon.dev
Cc: dharma.b@microchip.com
Cc: manikandan.m@microchip.com
Cc: nicolas.ferre@microchip.com
---
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 30 ++++++++++++-------------
1 file changed, 15 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
index 70a1cef24388..e09ce6342085 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
@@ -1181,35 +1181,35 @@ static void atmel_hlcdc_plane_atomic_destroy_state(struct drm_plane *p,
__drm_atomic_helper_plane_destroy_state(s);
kfree(state);
}
-static void atmel_hlcdc_plane_reset(struct drm_plane *p)
+static struct drm_plane_state *atmel_hlcdc_plane_create_state(struct drm_plane *p)
{
struct atmel_hlcdc_plane_state *state;
-
- if (p->state) {
- atmel_hlcdc_plane_atomic_destroy_state(p, p->state);
- p->state = NULL;
- }
+ int ret;
state = kzalloc_obj(*state);
- if (state) {
- if (atmel_hlcdc_plane_alloc_dscrs(p, state)) {
- kfree(state);
- drm_err(p->dev,
- "Failed to allocate initial plane state\n");
- return;
- }
- __drm_atomic_helper_plane_reset(p, &state->base);
+ if (!state)
+ return ERR_PTR(-ENOMEM);
+
+ ret = atmel_hlcdc_plane_alloc_dscrs(p, state);
+ if (ret) {
+ kfree(state);
+ drm_err(p->dev, "Failed to allocate initial plane state\n");
+ return ERR_PTR(ret);
}
+
+ __drm_atomic_helper_plane_state_init(&state->base, p);
+
+ return &state->base;
}
static const struct drm_plane_funcs layer_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
- .reset = atmel_hlcdc_plane_reset,
+ .atomic_create_state = atmel_hlcdc_plane_create_state,
.atomic_duplicate_state = atmel_hlcdc_plane_atomic_duplicate_state,
.atomic_destroy_state = atmel_hlcdc_plane_atomic_destroy_state,
};
static int atmel_hlcdc_plane_create(struct drm_device *dev,
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 30/41] drm/exynos: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (28 preceding siblings ...)
2026-09-08 14:47 ` [PATCH v4 29/41] drm/atmel-hlcdc: Convert to atomic_create_state Maxime Ripard
@ 2026-09-08 14:47 ` Maxime Ripard
2026-09-08 14:47 ` [PATCH v4 31/41] drm/imx/ipuv3: " Maxime Ripard
` (11 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:47 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, alim.akhtar, inki.dae, krzk,
kyungmin.park, linux-samsung-soc, sw0312.kim
The plane reset implementation creates a custom state
subclass, but only initializes a pristine state without resetting any
hardware. This is equivalent to what atomic_create_state expects.
Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: alim.akhtar@samsung.com
Cc: inki.dae@samsung.com
Cc: krzk@kernel.org
Cc: kyungmin.park@samsung.com
Cc: linux-samsung-soc@vger.kernel.org
Cc: sw0312.kim@samsung.com
---
drivers/gpu/drm/exynos/exynos_drm_plane.c | 22 +++++++++-------------
1 file changed, 9 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c b/drivers/gpu/drm/exynos/exynos_drm_plane.c
index 5c04ef87e400..020e8c9cf7de 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_plane.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c
@@ -120,27 +120,23 @@ static void exynos_plane_mode_set(struct exynos_drm_plane_state *exynos_state)
"plane : offset_x/y(%d,%d), width/height(%d,%d)",
exynos_state->crtc.x, exynos_state->crtc.y,
exynos_state->crtc.w, exynos_state->crtc.h);
}
-static void exynos_drm_plane_reset(struct drm_plane *plane)
+static struct drm_plane_state *exynos_drm_plane_create_state(struct drm_plane *plane)
{
struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
struct exynos_drm_plane_state *exynos_state;
- if (plane->state) {
- exynos_state = to_exynos_plane_state(plane->state);
- __drm_atomic_helper_plane_destroy_state(plane->state);
- kfree(exynos_state);
- plane->state = NULL;
- }
-
exynos_state = kzalloc_obj(*exynos_state);
- if (exynos_state) {
- __drm_atomic_helper_plane_reset(plane, &exynos_state->base);
- plane->state->zpos = exynos_plane->config->zpos;
- }
+ if (!exynos_state)
+ return ERR_PTR(-ENOMEM);
+
+ __drm_atomic_helper_plane_state_init(&exynos_state->base, plane);
+ exynos_state->base.zpos = exynos_plane->config->zpos;
+
+ return &exynos_state->base;
}
static struct drm_plane_state *
exynos_drm_plane_duplicate_state(struct drm_plane *plane)
{
@@ -167,11 +163,11 @@ static void exynos_drm_plane_destroy_state(struct drm_plane *plane,
static struct drm_plane_funcs exynos_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_cleanup,
- .reset = exynos_drm_plane_reset,
+ .atomic_create_state = exynos_drm_plane_create_state,
.atomic_duplicate_state = exynos_drm_plane_duplicate_state,
.atomic_destroy_state = exynos_drm_plane_destroy_state,
};
static int
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 31/41] drm/imx/ipuv3: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (29 preceding siblings ...)
2026-09-08 14:47 ` [PATCH v4 30/41] drm/exynos: " Maxime Ripard
@ 2026-09-08 14:47 ` Maxime Ripard
2026-09-08 14:47 ` [PATCH v4 32/41] drm/mediatek: " Maxime Ripard
` (10 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:47 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, Frank.Li, Sascha Hauer, festevam, imx,
kernel, p.zabel
The plane reset implementation creates a custom state
subclass, but only initializes a pristine state without resetting any
hardware. This is equivalent to what atomic_create_state expects.
Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: Frank.Li@nxp.com
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: festevam@gmail.com
Cc: imx@lists.linux.dev
Cc: kernel@pengutronix.de
Cc: p.zabel@pengutronix.de
---
drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c | 19 ++++++++-----------
1 file changed, 8 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c
index c7ec09e557c1..afebd4fe4395 100644
--- a/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c
+++ b/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c
@@ -295,25 +295,22 @@ void ipu_plane_disable_deferred(struct drm_plane *plane)
ipu_plane->disabling = false;
ipu_plane_disable(ipu_plane, false);
}
}
-static void ipu_plane_state_reset(struct drm_plane *plane)
+static struct drm_plane_state *ipu_plane_state_create_state(struct drm_plane *plane)
{
struct ipu_plane_state *ipu_state;
- if (plane->state) {
- ipu_state = to_ipu_plane_state(plane->state);
- __drm_atomic_helper_plane_destroy_state(plane->state);
- kfree(ipu_state);
- plane->state = NULL;
- }
-
ipu_state = kzalloc_obj(*ipu_state);
- if (ipu_state)
- __drm_atomic_helper_plane_reset(plane, &ipu_state->base);
+ if (!ipu_state)
+ return ERR_PTR(-ENOMEM);
+
+ __drm_atomic_helper_plane_state_init(&ipu_state->base, plane);
+
+ return &ipu_state->base;
}
static struct drm_plane_state *
ipu_plane_duplicate_state(struct drm_plane *plane)
{
@@ -356,11 +353,11 @@ static bool ipu_plane_format_mod_supported(struct drm_plane *plane,
}
static const struct drm_plane_funcs ipu_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
- .reset = ipu_plane_state_reset,
+ .atomic_create_state = ipu_plane_state_create_state,
.atomic_duplicate_state = ipu_plane_duplicate_state,
.atomic_destroy_state = ipu_plane_destroy_state,
.format_mod_supported = ipu_plane_format_mod_supported,
};
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 32/41] drm/mediatek: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (30 preceding siblings ...)
2026-09-08 14:47 ` [PATCH v4 31/41] drm/imx/ipuv3: " Maxime Ripard
@ 2026-09-08 14:47 ` Maxime Ripard
2026-09-10 6:54 ` Thomas Zimmermann
2026-09-08 14:47 ` [PATCH v4 33/41] drm/nouveau: " Maxime Ripard
` (9 subsequent siblings)
41 siblings, 1 reply; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:47 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, angelogioacchino.delregno, chunkuang.hu,
matthias.bgg, p.zabel
The plane reset implementation creates a custom state
subclass, but only initializes a pristine state without resetting any
hardware. This is equivalent to what atomic_create_state expects.
Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: angelogioacchino.delregno@collabora.com
Cc: chunkuang.hu@kernel.org
Cc: matthias.bgg@gmail.com
Cc: p.zabel@pengutronix.de
---
drivers/gpu/drm/mediatek/mtk_plane.c | 22 ++++++++--------------
1 file changed, 8 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_plane.c b/drivers/gpu/drm/mediatek/mtk_plane.c
index 2598c8edb443..2a40d72d241e 100644
--- a/drivers/gpu/drm/mediatek/mtk_plane.c
+++ b/drivers/gpu/drm/mediatek/mtk_plane.c
@@ -23,30 +23,24 @@
static const u64 modifiers[] = {
DRM_FORMAT_MOD_LINEAR,
DRM_FORMAT_MOD_INVALID,
};
-static void mtk_plane_reset(struct drm_plane *plane)
+static struct drm_plane_state *mtk_plane_create_state(struct drm_plane *plane)
{
struct mtk_plane_state *state;
+ state = kzalloc_obj(*state);
+ if (!state)
+ return ERR_PTR(-ENOMEM);
- if (plane->state) {
- __drm_atomic_helper_plane_destroy_state(plane->state);
-
- state = to_mtk_plane_state(plane->state);
- memset(state, 0, sizeof(*state));
- } else {
- state = kzalloc_obj(*state);
- if (!state)
- return;
- }
-
- __drm_atomic_helper_plane_reset(plane, &state->base);
+ __drm_atomic_helper_plane_state_init(&state->base, plane);
state->base.plane = plane;
state->pending.format = DRM_FORMAT_RGB565;
state->pending.modifier = DRM_FORMAT_MOD_LINEAR;
+
+ return &state->base;
}
static struct drm_plane_state *mtk_plane_duplicate_state(struct drm_plane *plane)
{
struct mtk_plane_state *old_state = to_mtk_plane_state(plane->state);
@@ -219,11 +213,11 @@ static void mtk_plane_atomic_async_update(struct drm_plane *plane,
static const struct drm_plane_funcs mtk_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_cleanup,
- .reset = mtk_plane_reset,
+ .atomic_create_state = mtk_plane_create_state,
.atomic_duplicate_state = mtk_plane_duplicate_state,
.atomic_destroy_state = mtk_plane_destroy_state,
.format_mod_supported = mtk_plane_format_mod_supported,
};
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 33/41] drm/nouveau: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (31 preceding siblings ...)
2026-09-08 14:47 ` [PATCH v4 32/41] drm/mediatek: " Maxime Ripard
@ 2026-09-08 14:47 ` Maxime Ripard
2026-09-10 6:55 ` Thomas Zimmermann
2026-09-08 14:47 ` [PATCH v4 34/41] drm/omap: " Maxime Ripard
` (8 subsequent siblings)
41 siblings, 1 reply; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:47 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, Lyude Paul, dakr, lyude, nouveau
The plane reset implementation creates a custom state
subclass, but only initializes a pristine state without resetting any
hardware. This is equivalent to what atomic_create_state expects.
Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: dakr@kernel.org
Cc: lyude@redhat.com
Cc: nouveau@lists.freedesktop.org
---
drivers/gpu/drm/nouveau/dispnv50/wndw.c | 15 +++++++--------
1 file changed, 7 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/dispnv50/wndw.c b/drivers/gpu/drm/nouveau/dispnv50/wndw.c
index 15a322422f4e..378095138d12 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/wndw.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/wndw.c
@@ -750,22 +750,21 @@ nv50_wndw_zpos_default(struct drm_plane *plane)
{
return (plane->type == DRM_PLANE_TYPE_PRIMARY) ? 0 :
(plane->type == DRM_PLANE_TYPE_OVERLAY) ? 1 : 255;
}
-static void
-nv50_wndw_reset(struct drm_plane *plane)
+static struct drm_plane_state *nv50_wndw_create_state(struct drm_plane *plane)
{
struct nv50_wndw_atom *asyw;
- if (WARN_ON(!(asyw = kzalloc_obj(*asyw))))
- return;
+ asyw = kzalloc_obj(*asyw);
+ if (WARN_ON(!asyw))
+ return ERR_PTR(-ENOMEM);
- if (plane->state)
- plane->funcs->atomic_destroy_state(plane, plane->state);
+ __drm_atomic_helper_plane_state_init(&asyw->state, plane);
- __drm_atomic_helper_plane_reset(plane, &asyw->state);
+ return &asyw->state;
}
static void
nv50_wndw_destroy(struct drm_plane *plane)
{
@@ -835,11 +834,11 @@ static bool nv50_plane_format_mod_supported(struct drm_plane *plane,
const struct drm_plane_funcs
nv50_wndw = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = nv50_wndw_destroy,
- .reset = nv50_wndw_reset,
+ .atomic_create_state = nv50_wndw_create_state,
.atomic_duplicate_state = nv50_wndw_atomic_duplicate_state,
.atomic_destroy_state = nv50_wndw_atomic_destroy_state,
.format_mod_supported = nv50_plane_format_mod_supported,
};
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 34/41] drm/omap: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (32 preceding siblings ...)
2026-09-08 14:47 ` [PATCH v4 33/41] drm/nouveau: " Maxime Ripard
@ 2026-09-08 14:47 ` Maxime Ripard
2026-09-08 14:47 ` [PATCH v4 35/41] drm/rcar-du: " Maxime Ripard
` (7 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:47 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, tomi.valkeinen
The plane reset implementation creates a custom state
subclass, but only initializes a pristine state without resetting any
hardware. This is equivalent to what atomic_create_state expects.
Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: tomi.valkeinen@ideasonboard.com
---
drivers/gpu/drm/omapdrm/omap_plane.c | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/omap_plane.c b/drivers/gpu/drm/omapdrm/omap_plane.c
index c024cdbbd87a..e3f60046afcc 100644
--- a/drivers/gpu/drm/omapdrm/omap_plane.c
+++ b/drivers/gpu/drm/omapdrm/omap_plane.c
@@ -401,22 +401,21 @@ void omap_plane_install_properties(struct drm_plane *plane,
}
drm_object_attach_property(obj, priv->zorder_prop, 0);
}
-static void omap_plane_reset(struct drm_plane *plane)
+static struct drm_plane_state *omap_plane_create_state(struct drm_plane *plane)
{
struct omap_plane_state *omap_state;
- if (plane->state)
- drm_atomic_helper_plane_destroy_state(plane, plane->state);
-
omap_state = kzalloc_obj(*omap_state);
if (!omap_state)
- return;
+ return ERR_PTR(-ENOMEM);
- __drm_atomic_helper_plane_reset(plane, &omap_state->base);
+ __drm_atomic_helper_plane_state_init(&omap_state->base, plane);
+
+ return &omap_state->base;
}
static struct drm_plane_state *
omap_plane_atomic_duplicate_state(struct drm_plane *plane)
{
@@ -489,11 +488,11 @@ static int omap_plane_atomic_get_property(struct drm_plane *plane,
}
static const struct drm_plane_funcs omap_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
- .reset = omap_plane_reset,
+ .atomic_create_state = omap_plane_create_state,
.destroy = omap_plane_destroy,
.atomic_duplicate_state = omap_plane_atomic_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
.atomic_set_property = omap_plane_atomic_set_property,
.atomic_get_property = omap_plane_atomic_get_property,
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 35/41] drm/rcar-du: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (33 preceding siblings ...)
2026-09-08 14:47 ` [PATCH v4 34/41] drm/omap: " Maxime Ripard
@ 2026-09-08 14:47 ` Maxime Ripard
2026-09-10 6:57 ` Thomas Zimmermann
2026-09-10 12:00 ` Laurent Pinchart
2026-09-08 14:47 ` [PATCH v4 36/41] drm/rz-du: " Maxime Ripard
` (6 subsequent siblings)
41 siblings, 2 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:47 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, geert+renesas, kieran.bingham+renesas,
laurent.pinchart+renesas, linux-renesas-soc, magnus.damm,
tomi.valkeinen+renesas
The plane reset implementation creates a custom state
subclass, but only initializes a pristine state without resetting any
hardware. This is equivalent to what atomic_create_state expects.
Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: geert+renesas@glider.be
Cc: kieran.bingham+renesas@ideasonboard.com
Cc: laurent.pinchart+renesas@ideasonboard.com
Cc: linux-renesas-soc@vger.kernel.org
Cc: magnus.damm@gmail.com
Cc: tomi.valkeinen+renesas@ideasonboard.com
---
drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c | 15 ++++++---------
drivers/gpu/drm/renesas/rcar-du/rcar_du_vsp.c | 15 ++++++---------
2 files changed, 12 insertions(+), 18 deletions(-)
diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
index 8870766b9e54..da2dff9bb317 100644
--- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
+++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
@@ -710,28 +710,25 @@ static void rcar_du_plane_atomic_destroy_state(struct drm_plane *plane,
{
__drm_atomic_helper_plane_destroy_state(state);
kfree(to_rcar_plane_state(state));
}
-static void rcar_du_plane_reset(struct drm_plane *plane)
+static struct drm_plane_state *rcar_du_plane_create_state(struct drm_plane *plane)
{
struct rcar_du_plane_state *state;
- if (plane->state) {
- rcar_du_plane_atomic_destroy_state(plane, plane->state);
- plane->state = NULL;
- }
-
state = kzalloc_obj(*state);
if (state == NULL)
- return;
+ return ERR_PTR(-ENOMEM);
- __drm_atomic_helper_plane_reset(plane, &state->state);
+ __drm_atomic_helper_plane_state_init(&state->state, plane);
state->hwindex = -1;
state->source = RCAR_DU_PLANE_MEMORY;
state->colorkey = RCAR_DU_COLORKEY_NONE;
+
+ return &state->state;
}
static int rcar_du_plane_atomic_set_property(struct drm_plane *plane,
struct drm_plane_state *state,
struct drm_property *property,
@@ -765,11 +762,11 @@ static int rcar_du_plane_atomic_get_property(struct drm_plane *plane,
}
static const struct drm_plane_funcs rcar_du_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
- .reset = rcar_du_plane_reset,
+ .atomic_create_state = rcar_du_plane_create_state,
.destroy = drm_plane_cleanup,
.atomic_duplicate_state = rcar_du_plane_atomic_duplicate_state,
.atomic_destroy_state = rcar_du_plane_atomic_destroy_state,
.atomic_set_property = rcar_du_plane_atomic_set_property,
.atomic_get_property = rcar_du_plane_atomic_get_property,
diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_vsp.c b/drivers/gpu/drm/renesas/rcar-du/rcar_du_vsp.c
index ae9f381b03c8..4293e792afdb 100644
--- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_vsp.c
+++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_vsp.c
@@ -419,30 +419,27 @@ static void rcar_du_vsp_plane_atomic_destroy_state(struct drm_plane *plane,
{
__drm_atomic_helper_plane_destroy_state(state);
kfree(to_rcar_vsp_plane_state(state));
}
-static void rcar_du_vsp_plane_reset(struct drm_plane *plane)
+static struct drm_plane_state *rcar_du_vsp_plane_create_state(struct drm_plane *plane)
{
struct rcar_du_vsp_plane_state *state;
- if (plane->state) {
- rcar_du_vsp_plane_atomic_destroy_state(plane, plane->state);
- plane->state = NULL;
- }
-
state = kzalloc_obj(*state);
if (state == NULL)
- return;
+ return ERR_PTR(-ENOMEM);
- __drm_atomic_helper_plane_reset(plane, &state->state);
+ __drm_atomic_helper_plane_state_init(&state->state, plane);
+
+ return &state->state;
}
static const struct drm_plane_funcs rcar_du_vsp_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
- .reset = rcar_du_vsp_plane_reset,
+ .atomic_create_state = rcar_du_vsp_plane_create_state,
.destroy = drm_plane_cleanup,
.atomic_duplicate_state = rcar_du_vsp_plane_atomic_duplicate_state,
.atomic_destroy_state = rcar_du_vsp_plane_atomic_destroy_state,
};
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 36/41] drm/rz-du: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (34 preceding siblings ...)
2026-09-08 14:47 ` [PATCH v4 35/41] drm/rcar-du: " Maxime Ripard
@ 2026-09-08 14:47 ` Maxime Ripard
2026-09-08 14:47 ` [PATCH v4 37/41] drm/shmobile: " Maxime Ripard
` (5 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:47 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, Biju Das, biju.das.jz,
linux-renesas-soc
The plane reset implementation creates a custom state
subclass, but only initializes a pristine state without resetting any
hardware. This is equivalent to what atomic_create_state expects.
Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Tested-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: biju.das.jz@bp.renesas.com
Cc: linux-renesas-soc@vger.kernel.org
---
drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c | 15 ++++++---------
1 file changed, 6 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c
index 1efa0f0451fe..944bc9ac9589 100644
--- a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c
+++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c
@@ -264,30 +264,27 @@ static void rzg2l_du_vsp_plane_atomic_destroy_state(struct drm_plane *plane,
{
__drm_atomic_helper_plane_destroy_state(state);
kfree(to_rzg2l_vsp_plane_state(state));
}
-static void rzg2l_du_vsp_plane_reset(struct drm_plane *plane)
+static struct drm_plane_state *rzg2l_du_vsp_plane_create_state(struct drm_plane *plane)
{
struct rzg2l_du_vsp_plane_state *state;
- if (plane->state) {
- rzg2l_du_vsp_plane_atomic_destroy_state(plane, plane->state);
- plane->state = NULL;
- }
-
state = kzalloc_obj(*state);
if (!state)
- return;
+ return ERR_PTR(-ENOMEM);
- __drm_atomic_helper_plane_reset(plane, &state->state);
+ __drm_atomic_helper_plane_state_init(&state->state, plane);
+
+ return &state->state;
}
static const struct drm_plane_funcs rzg2l_du_vsp_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
- .reset = rzg2l_du_vsp_plane_reset,
+ .atomic_create_state = rzg2l_du_vsp_plane_create_state,
.atomic_duplicate_state = rzg2l_du_vsp_plane_atomic_duplicate_state,
.atomic_destroy_state = rzg2l_du_vsp_plane_atomic_destroy_state,
};
static void rzg2l_du_vsp_cleanup(struct drm_device *dev, void *res)
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 37/41] drm/shmobile: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (35 preceding siblings ...)
2026-09-08 14:47 ` [PATCH v4 36/41] drm/rz-du: " Maxime Ripard
@ 2026-09-08 14:47 ` Maxime Ripard
2026-09-10 6:58 ` Thomas Zimmermann
2026-09-08 14:47 ` [PATCH v4 38/41] drm/sun4i: layer: " Maxime Ripard
` (4 subsequent siblings)
41 siblings, 1 reply; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:47 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, geert+renesas, linux-renesas-soc
The plane reset implementation creates a custom state
subclass, but only initializes a pristine state without resetting any
hardware. This is equivalent to what atomic_create_state expects.
Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: geert+renesas@glider.be
Cc: linux-renesas-soc@vger.kernel.org
---
drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c | 15 ++++++---------
1 file changed, 6 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c
index 148de34af785..4dec4d2c941e 100644
--- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c
+++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c
@@ -249,24 +249,21 @@ static void shmob_drm_plane_atomic_destroy_state(struct drm_plane *plane,
{
__drm_atomic_helper_plane_destroy_state(state);
kfree(to_shmob_plane_state(state));
}
-static void shmob_drm_plane_reset(struct drm_plane *plane)
+static struct drm_plane_state *shmob_drm_plane_create_state(struct drm_plane *plane)
{
struct shmob_drm_plane_state *state;
- if (plane->state) {
- shmob_drm_plane_atomic_destroy_state(plane, plane->state);
- plane->state = NULL;
- }
-
state = kzalloc_obj(*state);
if (state == NULL)
- return;
+ return ERR_PTR(-ENOMEM);
- __drm_atomic_helper_plane_reset(plane, &state->base);
+ __drm_atomic_helper_plane_state_init(&state->base, plane);
+
+ return &state->base;
}
static const struct drm_plane_helper_funcs shmob_drm_plane_helper_funcs = {
.atomic_check = shmob_drm_plane_atomic_check,
.atomic_update = shmob_drm_plane_atomic_update,
@@ -281,11 +278,11 @@ static const struct drm_plane_helper_funcs shmob_drm_primary_plane_helper_funcs
};
static const struct drm_plane_funcs shmob_drm_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
- .reset = shmob_drm_plane_reset,
+ .atomic_create_state = shmob_drm_plane_create_state,
.atomic_duplicate_state = shmob_drm_plane_atomic_duplicate_state,
.atomic_destroy_state = shmob_drm_plane_atomic_destroy_state,
};
static const uint32_t formats[] = {
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 38/41] drm/sun4i: layer: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (36 preceding siblings ...)
2026-09-08 14:47 ` [PATCH v4 37/41] drm/shmobile: " Maxime Ripard
@ 2026-09-08 14:47 ` Maxime Ripard
2026-09-08 14:47 ` [PATCH v4 39/41] drm/vmwgfx: " Maxime Ripard
` (3 subsequent siblings)
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:47 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, linux-sunxi, samuel, wens
The plane reset implementation creates a custom state
subclass, but only initializes a pristine state without resetting any
hardware. This is equivalent to what atomic_create_state expects.
Convert to it.
The conversion was done using the following Coccinelle semantic patch:
@@
identifier funcs;
symbol drm_atomic_helper_plane_reset;
symbol drm_atomic_helper_plane_create_state;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = drm_atomic_helper_plane_reset,
+ .atomic_create_state = drm_atomic_helper_plane_create_state,
...,
};
@match_struct_reset@
identifier funcs, reset_func;
@@
struct drm_plane_funcs funcs = {
...,
.reset = reset_func,
...,
};
@reset_uses_helpers depends on match_struct_reset@
identifier match_struct_reset.reset_func;
@@
void reset_func(...)
{
<+...
(
__drm_atomic_helper_plane_reset(...);
|
__drm_gem_reset_shadow_plane(...);
)
...+>
}
@match_struct_destroy@
identifier funcs, destroy_func;
@@
struct drm_plane_funcs funcs = {
...,
.atomic_destroy_state = destroy_func,
...,
};
@script:python renamed_func@
old_name << match_struct_reset.reset_func;
new_name;
@@
if old_name.endswith("_reset"):
coccinelle.new_name = old_name.replace("_reset", "_create_state")
else:
coccinelle.new_name = old_name
@update_struct depends on match_struct_reset && reset_uses_helpers@
identifier match_struct_reset.funcs, match_struct_reset.reset_func;
identifier renamed_func.new_name;
@@
struct drm_plane_funcs funcs = {
...,
- .reset = reset_func,
+ .atomic_create_state = new_name,
...,
};
@drop_destroy depends on update_struct && match_struct_destroy@
identifier match_struct_reset.reset_func;
identifier match_struct_destroy.destroy_func;
identifier container_func;
identifier P;
symbol drm_atomic_helper_plane_destroy_state;
symbol __drm_atomic_helper_plane_destroy_state;
@@
void reset_func(struct drm_plane *P)
{
...
(
- if (P->state) {
- <+...
(
- drm_atomic_helper_plane_destroy_state(P, P->state);
|
- __drm_atomic_helper_plane_destroy_state(P->state);
|
- P->funcs->atomic_destroy_state(P, P->state);
|
- destroy_func(P, P->state);
)
- ...+>
- }
|
- drm_WARN_ON_ONCE(P->dev, P->state);
|
- WARN_ON(P->state);
)
...
(
- kfree(P->state);
|
- kfree(container_func(P->state));
|
// kfree is optional
)
(
- P->state = NULL;
|
// plane->state clearing is optional
)
...
}
@drop_destroy_mtk depends on update_struct@
identifier P;
symbol __drm_atomic_helper_plane_destroy_state;
symbol to_mtk_plane_state;
@@
void mtk_plane_reset(struct drm_plane *P)
{
...
- if (P->state) {
- __drm_atomic_helper_plane_destroy_state(P->state);
- ...
- } else {
...
- }
...
}
@transform_nv50_wndw depends on update_struct@
identifier S;
@@
void nv50_wndw_reset(...)
{
...
- if (WARN_ON(!(S = kzalloc_obj(*S))))
+ S = kzalloc_obj(*S);
+ if (WARN_ON(!S))
return;
...
}
@transform_kzalloc depends on update_struct@
identifier match_struct_reset.reset_func;
identifier P, S;
statement ST;
statement list STL;
@@
void reset_func(struct drm_plane *P)
{
<...
S = kzalloc_obj(*S);
(
- if (S)
- {
- STL
- }
+ if (!S) return;
+
+ STL
|
- if (S) ST
+ if (!S) return;
+
+ ST
)
...>
}
@transform_body depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier S, P;
expression PS;
@@
- void reset_func(struct drm_plane *P)
+ struct drm_plane_state *new_name(struct drm_plane *P)
{
...
S = kzalloc_obj(*S);
...
(
if (!S) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (WARN_ON(!S)) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
|
if (S == NULL) {
...
- return;
+ return ERR_PTR(-ENOMEM);
}
)
...
(
- __drm_atomic_helper_plane_reset(P, PS);
+ __drm_atomic_helper_plane_state_init(PS, P);
|
- __drm_gem_reset_shadow_plane(P, PS);
+ __drm_gem_shadow_plane_state_init(P, PS);
)
...
}
@update_early_return depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
<+...
- return;
+ return ERR_PTR(-EINVAL);
...+>
}
@update_return_plane depends on update_struct@
identifier match_struct_reset.reset_func;
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_atomic_helper_plane_state_init(PS, P);
...
+
+ return PS;
}
@update_return_shadow depends on update_struct@
identifier renamed_func.new_name;
identifier P;
expression PS;
@@
struct drm_plane_state *new_name(struct drm_plane *P)
{
...
__drm_gem_shadow_plane_state_init(P, PS);
...
+
+ return &PS->base;
}
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: linux-sunxi@lists.linux.dev
Cc: samuel@sholland.org
Cc: wens@kernel.org
---
drivers/gpu/drm/sun4i/sun4i_layer.c | 21 ++++++++-------------
1 file changed, 8 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/sun4i/sun4i_layer.c b/drivers/gpu/drm/sun4i/sun4i_layer.c
index d65587d96d9e..7ec6d8131908 100644
--- a/drivers/gpu/drm/sun4i/sun4i_layer.c
+++ b/drivers/gpu/drm/sun4i/sun4i_layer.c
@@ -14,26 +14,21 @@
#include "sun4i_backend.h"
#include "sun4i_frontend.h"
#include "sun4i_layer.h"
#include "sunxi_engine.h"
-static void sun4i_backend_layer_reset(struct drm_plane *plane)
+static struct drm_plane_state *sun4i_backend_layer_create_state(struct drm_plane *plane)
{
struct sun4i_layer_state *state;
- if (plane->state) {
- state = state_to_sun4i_layer_state(plane->state);
-
- __drm_atomic_helper_plane_destroy_state(&state->state);
-
- kfree(state);
- plane->state = NULL;
- }
-
state = kzalloc_obj(*state);
- if (state)
- __drm_atomic_helper_plane_reset(plane, &state->state);
+ if (!state)
+ return ERR_PTR(-ENOMEM);
+
+ __drm_atomic_helper_plane_state_init(&state->state, plane);
+
+ return &state->state;
}
static struct drm_plane_state *
sun4i_backend_layer_duplicate_state(struct drm_plane *plane)
{
@@ -131,11 +126,11 @@ static const struct drm_plane_helper_funcs sun4i_backend_layer_helper_funcs = {
static const struct drm_plane_funcs sun4i_backend_layer_funcs = {
.atomic_destroy_state = sun4i_backend_layer_destroy_state,
.atomic_duplicate_state = sun4i_backend_layer_duplicate_state,
.destroy = drm_plane_cleanup,
.disable_plane = drm_atomic_helper_disable_plane,
- .reset = sun4i_backend_layer_reset,
+ .atomic_create_state = sun4i_backend_layer_create_state,
.update_plane = drm_atomic_helper_update_plane,
.format_mod_supported = sun4i_layer_format_mod_supported,
};
static const uint32_t sun4i_layer_formats[] = {
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 39/41] drm/vmwgfx: Convert to atomic_create_state
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (37 preceding siblings ...)
2026-09-08 14:47 ` [PATCH v4 38/41] drm/sun4i: layer: " Maxime Ripard
@ 2026-09-08 14:47 ` Maxime Ripard
2026-09-10 7:00 ` Thomas Zimmermann
2026-09-08 14:47 ` [PATCH v4 40/41] drm/atomic-state-helper: Remove __drm_atomic_helper_plane_reset() Maxime Ripard
` (2 subsequent siblings)
41 siblings, 1 reply; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:47 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard, Zack Rusin, bcm-kernel-feedback-list,
zack.rusin
The plane reset implementation creates a custom state
subclass, but only initializes a pristine state without resetting any
hardware. This is equivalent to what atomic_create_state expects.
Convert to it.
Reviewed-by: Zack Rusin <zack.rusin@broadcom.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: zack.rusin@broadcom.com
---
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 17 +++++++----------
drivers/gpu/drm/vmwgfx/vmwgfx_kms.h | 2 +-
drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c | 4 ++--
drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c | 4 ++--
drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 4 ++--
5 files changed, 14 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 0b470809661c..9031dccad31d 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -277,31 +277,28 @@ vmw_du_plane_duplicate_state(struct drm_plane *plane)
return state;
}
/**
- * vmw_du_plane_reset - creates a blank vmw plane state
+ * vmw_du_plane_create_state - creates a blank vmw plane state
* @plane: drm plane
*
- * Resets the atomic state for @plane by freeing the state pointer (which might
- * be NULL, e.g. at driver load time) and allocating a new empty state object.
+ * Allocates a new empty state object.
*/
-void vmw_du_plane_reset(struct drm_plane *plane)
+struct drm_plane_state *vmw_du_plane_create_state(struct drm_plane *plane)
{
struct vmw_plane_state *vps;
- if (plane->state)
- vmw_du_plane_destroy_state(plane, plane->state);
-
vps = kzalloc_obj(*vps);
-
if (!vps) {
DRM_ERROR("Cannot allocate vmw_plane_state\n");
- return;
+ return ERR_PTR(-ENOMEM);
}
- __drm_atomic_helper_plane_reset(plane, &vps->base);
+ __drm_atomic_helper_plane_state_init(&vps->base, plane);
+
+ return &vps->base;
}
/**
* vmw_du_plane_destroy_state - destroy plane state
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
index e641f33341e6..5085d8bccf0a 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
@@ -409,11 +409,11 @@ void vmw_du_primary_plane_destroy(struct drm_plane *plane);
/* Atomic Helpers */
int vmw_du_primary_plane_atomic_check(struct drm_plane *plane,
struct drm_atomic_commit *state);
void vmw_du_plane_cleanup_fb(struct drm_plane *plane,
struct drm_plane_state *old_state);
-void vmw_du_plane_reset(struct drm_plane *plane);
+struct drm_plane_state *vmw_du_plane_create_state(struct drm_plane *plane);
struct drm_plane_state *vmw_du_plane_duplicate_state(struct drm_plane *plane);
void vmw_du_plane_destroy_state(struct drm_plane *plane,
struct drm_plane_state *state);
void vmw_du_plane_unpin_surf(struct vmw_plane_state *vps);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
index a4b28341f622..b147f5db9df5 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
@@ -362,20 +362,20 @@ vmw_ldu_primary_plane_atomic_update(struct drm_plane *plane,
static const struct drm_plane_funcs vmw_ldu_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = vmw_du_primary_plane_destroy,
- .reset = vmw_du_plane_reset,
+ .atomic_create_state = vmw_du_plane_create_state,
.atomic_duplicate_state = vmw_du_plane_duplicate_state,
.atomic_destroy_state = vmw_du_plane_destroy_state,
};
static const struct drm_plane_funcs vmw_ldu_cursor_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = vmw_cursor_plane_destroy,
- .reset = vmw_du_plane_reset,
+ .atomic_create_state = vmw_du_plane_create_state,
.atomic_duplicate_state = vmw_du_plane_duplicate_state,
.atomic_destroy_state = vmw_du_plane_destroy_state,
};
/*
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
index a05f935f1841..89714d5c235b 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
@@ -754,20 +754,20 @@ vmw_sou_primary_plane_atomic_update(struct drm_plane *plane,
static const struct drm_plane_funcs vmw_sou_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = vmw_du_primary_plane_destroy,
- .reset = vmw_du_plane_reset,
+ .atomic_create_state = vmw_du_plane_create_state,
.atomic_duplicate_state = vmw_du_plane_duplicate_state,
.atomic_destroy_state = vmw_du_plane_destroy_state,
};
static const struct drm_plane_funcs vmw_sou_cursor_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = vmw_cursor_plane_destroy,
- .reset = vmw_du_plane_reset,
+ .atomic_create_state = vmw_du_plane_create_state,
.atomic_duplicate_state = vmw_du_plane_duplicate_state,
.atomic_destroy_state = vmw_du_plane_destroy_state,
};
/*
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
index 939da0e11dbb..cbf55084110a 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
@@ -1472,20 +1472,20 @@ vmw_stdu_crtc_atomic_flush(struct drm_crtc *crtc,
static const struct drm_plane_funcs vmw_stdu_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = vmw_du_primary_plane_destroy,
- .reset = vmw_du_plane_reset,
+ .atomic_create_state = vmw_du_plane_create_state,
.atomic_duplicate_state = vmw_du_plane_duplicate_state,
.atomic_destroy_state = vmw_du_plane_destroy_state,
};
static const struct drm_plane_funcs vmw_stdu_cursor_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = vmw_cursor_plane_destroy,
- .reset = vmw_du_plane_reset,
+ .atomic_create_state = vmw_du_plane_create_state,
.atomic_duplicate_state = vmw_du_plane_duplicate_state,
.atomic_destroy_state = vmw_du_plane_destroy_state,
};
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 40/41] drm/atomic-state-helper: Remove __drm_atomic_helper_plane_reset()
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (38 preceding siblings ...)
2026-09-08 14:47 ` [PATCH v4 39/41] drm/vmwgfx: " Maxime Ripard
@ 2026-09-08 14:47 ` Maxime Ripard
2026-09-08 14:47 ` [PATCH v4 41/41] drm/plane: Remove reset Maxime Ripard
2026-09-10 7:03 ` [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Thomas Zimmermann
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:47 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard
__drm_atomic_helper_plane_reset() is no longer used: all callers now go
through __drm_atomic_helper_plane_state_init(). Remove it.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
drivers/gpu/drm/drm_atomic_state_helper.c | 22 ----------------------
include/drm/drm_atomic_state_helper.h | 2 --
2 files changed, 24 deletions(-)
diff --git a/drivers/gpu/drm/drm_atomic_state_helper.c b/drivers/gpu/drm/drm_atomic_state_helper.c
index f184ce76e090..afd65f0c8f90 100644
--- a/drivers/gpu/drm/drm_atomic_state_helper.c
+++ b/drivers/gpu/drm/drm_atomic_state_helper.c
@@ -322,32 +322,10 @@ void __drm_atomic_helper_plane_state_init(struct drm_plane_state *plane_state,
plane_state->hotspot_y = val;
}
}
EXPORT_SYMBOL(__drm_atomic_helper_plane_state_init);
-/**
- * __drm_atomic_helper_plane_reset - reset state on plane
- * @plane: drm plane
- * @plane_state: plane state to assign
- *
- * Initializes the newly allocated @plane_state and assigns it to
- * the &drm_plane->state pointer of @plane, usually required when
- * initializing the drivers or when called from the &drm_plane_funcs.reset
- * hook.
- *
- * This is useful for drivers that subclass the plane state.
- */
-void __drm_atomic_helper_plane_reset(struct drm_plane *plane,
- struct drm_plane_state *plane_state)
-{
- if (plane_state)
- __drm_atomic_helper_plane_state_init(plane_state, plane);
-
- plane->state = plane_state;
-}
-EXPORT_SYMBOL(__drm_atomic_helper_plane_reset);
-
/**
* drm_atomic_helper_plane_create_state - default &drm_plane_funcs.atomic_create_state hook for planes
* @plane: plane object
*
* Allocates and initializes pristine @drm_plane_state.
diff --git a/include/drm/drm_atomic_state_helper.h b/include/drm/drm_atomic_state_helper.h
index 60635eb34758..9051217833e3 100644
--- a/include/drm/drm_atomic_state_helper.h
+++ b/include/drm/drm_atomic_state_helper.h
@@ -57,12 +57,10 @@ void drm_atomic_helper_crtc_destroy_state(struct drm_crtc *crtc,
void __drm_atomic_helper_plane_state_init(struct drm_plane_state *state,
struct drm_plane *plane);
struct drm_plane_state *
drm_atomic_helper_plane_create_state(struct drm_plane *plane);
-void __drm_atomic_helper_plane_reset(struct drm_plane *plane,
- struct drm_plane_state *state);
void __drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane,
struct drm_plane_state *state);
struct drm_plane_state *
drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane);
void __drm_atomic_helper_plane_destroy_state(struct drm_plane_state *state);
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* [PATCH v4 41/41] drm/plane: Remove reset
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (39 preceding siblings ...)
2026-09-08 14:47 ` [PATCH v4 40/41] drm/atomic-state-helper: Remove __drm_atomic_helper_plane_reset() Maxime Ripard
@ 2026-09-08 14:47 ` Maxime Ripard
2026-09-10 7:03 ` [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Thomas Zimmermann
41 siblings, 0 replies; 54+ messages in thread
From: Maxime Ripard @ 2026-09-08 14:47 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter
Cc: dri-devel, Maxime Ripard
All plane drivers now implement the atomic_create_state hook instead of
the reset hook for initial state creation. The reset hook conflated
initial state allocation at probe time with hardware and software reset
during suspend/resume, making error handling difficult since it is not
fallible.
Remove the reset hook from struct drm_plane_funcs and the associated
call in drm_mode_config_reset().
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
drivers/gpu/drm/drm_mode_config.c | 4 +---
include/drm/drm_plane.h | 9 ---------
2 files changed, 1 insertion(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/drm_mode_config.c b/drivers/gpu/drm/drm_mode_config.c
index 366f6d821242..a1e6ea408ece 100644
--- a/drivers/gpu/drm/drm_mode_config.c
+++ b/drivers/gpu/drm/drm_mode_config.c
@@ -287,13 +287,11 @@ void drm_mode_config_reset(struct drm_device *dev)
drm_for_each_colorop(colorop, dev)
drm_colorop_reset(colorop);
drm_for_each_plane(plane, dev) {
- if (plane->funcs->reset)
- plane->funcs->reset(plane);
- else if (plane->funcs->atomic_create_state)
+ if (plane->funcs->atomic_create_state)
drm_mode_config_plane_reset_with_create_state(plane);
}
drm_for_each_crtc(crtc, dev) {
if (crtc->funcs->reset)
diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h
index e757e9dbf132..a16e96aa7e60 100644
--- a/include/drm/drm_plane.h
+++ b/include/drm/drm_plane.h
@@ -357,19 +357,10 @@ struct drm_plane_funcs {
* through drm_mode_config_cleanup() since a plane cannot be hotplugged
* in DRM.
*/
void (*destroy)(struct drm_plane *plane);
- /**
- * @reset:
- *
- * Reset plane hardware and software state to off. This function isn't
- * called by the core directly, only through drm_mode_config_reset().
- * It's not a helper hook only for historical reasons.
- */
- void (*reset)(struct drm_plane *plane);
-
/**
* @set_property:
*
* This is the legacy entry point to update a property attached to the
* plane.
--
2.55.0
^ permalink raw reply related [flat|nested] 54+ messages in thread
* Re: [PATCH v4 15/41] drm/rockchip: Convert to atomic_create_state
2026-09-08 14:46 ` [PATCH v4 15/41] drm/rockchip: " Maxime Ripard
@ 2026-09-09 10:00 ` Heiko Stübner
0 siblings, 0 replies; 54+ messages in thread
From: Heiko Stübner @ 2026-09-09 10:00 UTC (permalink / raw)
To: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter,
Maxime Ripard
Cc: dri-devel, Maxime Ripard, andy.yan, hjc, linux-rockchip
Am Dienstag, 8. September 2026, 16:46:46 Mitteleuropäische Sommerzeit schrieb Maxime Ripard:
> The plane only initializes a pristine state in its reset hook
> using drm_atomic_helper_plane_reset(), which is equivalent to what
> atomic_create_state expects. Convert to it.
>
> The conversion was done using the following Coccinelle semantic patch:
>
> @@
> identifier funcs;
> symbol drm_atomic_helper_plane_reset;
> symbol drm_atomic_helper_plane_create_state;
> @@
>
> struct drm_plane_funcs funcs = {
> ...,
> - .reset = drm_atomic_helper_plane_reset,
> + .atomic_create_state = drm_atomic_helper_plane_create_state,
> ...,
> };
>
> @match_struct_reset@
> identifier funcs, reset_func;
> @@
> struct drm_plane_funcs funcs = {
> ...,
> .reset = reset_func,
> ...,
> };
>
> @reset_uses_helpers depends on match_struct_reset@
> identifier match_struct_reset.reset_func;
> @@
>
> void reset_func(...)
> {
> <+...
> (
> __drm_atomic_helper_plane_reset(...);
> |
> __drm_gem_reset_shadow_plane(...);
> )
> ...+>
> }
>
> @match_struct_destroy@
> identifier funcs, destroy_func;
> @@
> struct drm_plane_funcs funcs = {
> ...,
> .atomic_destroy_state = destroy_func,
> ...,
> };
>
> @script:python renamed_func@
> old_name << match_struct_reset.reset_func;
> new_name;
> @@
> if old_name.endswith("_reset"):
> coccinelle.new_name = old_name.replace("_reset", "_create_state")
> else:
> coccinelle.new_name = old_name
>
> @update_struct depends on match_struct_reset && reset_uses_helpers@
> identifier match_struct_reset.funcs, match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> @@
> struct drm_plane_funcs funcs = {
> ...,
> - .reset = reset_func,
> + .atomic_create_state = new_name,
> ...,
> };
>
> @drop_destroy depends on update_struct && match_struct_destroy@
> identifier match_struct_reset.reset_func;
> identifier match_struct_destroy.destroy_func;
> identifier container_func;
> identifier P;
> symbol drm_atomic_helper_plane_destroy_state;
> symbol __drm_atomic_helper_plane_destroy_state;
> @@
>
> void reset_func(struct drm_plane *P)
> {
> ...
> (
> - if (P->state) {
> - <+...
> (
> - drm_atomic_helper_plane_destroy_state(P, P->state);
> |
> - __drm_atomic_helper_plane_destroy_state(P->state);
> |
> - P->funcs->atomic_destroy_state(P, P->state);
> |
> - destroy_func(P, P->state);
> )
> - ...+>
> - }
> |
> - drm_WARN_ON_ONCE(P->dev, P->state);
> |
> - WARN_ON(P->state);
> )
> ...
> (
> - kfree(P->state);
> |
> - kfree(container_func(P->state));
> |
> // kfree is optional
> )
> (
> - P->state = NULL;
> |
> // plane->state clearing is optional
> )
> ...
> }
>
> @drop_destroy_mtk depends on update_struct@
> identifier P;
> symbol __drm_atomic_helper_plane_destroy_state;
> symbol to_mtk_plane_state;
> @@
>
> void mtk_plane_reset(struct drm_plane *P)
> {
> ...
> - if (P->state) {
> - __drm_atomic_helper_plane_destroy_state(P->state);
> - ...
> - } else {
> ...
> - }
> ...
> }
>
> @transform_nv50_wndw depends on update_struct@
> identifier S;
> @@
>
> void nv50_wndw_reset(...)
> {
> ...
> - if (WARN_ON(!(S = kzalloc_obj(*S))))
> + S = kzalloc_obj(*S);
> + if (WARN_ON(!S))
> return;
> ...
> }
>
> @transform_kzalloc depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier P, S;
> statement ST;
> statement list STL;
> @@
>
> void reset_func(struct drm_plane *P)
> {
> <...
> S = kzalloc_obj(*S);
> (
> - if (S)
> - {
> - STL
> - }
> + if (!S) return;
> +
> + STL
> |
> - if (S) ST
> + if (!S) return;
> +
> + ST
> )
> ...>
> }
>
> @transform_body depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> identifier S, P;
> expression PS;
> @@
> - void reset_func(struct drm_plane *P)
> + struct drm_plane_state *new_name(struct drm_plane *P)
> {
> ...
> S = kzalloc_obj(*S);
> ...
> (
> if (!S) {
> ...
> - return;
> + return ERR_PTR(-ENOMEM);
> }
> |
> if (WARN_ON(!S)) {
> ...
> - return;
> + return ERR_PTR(-ENOMEM);
> }
> |
> if (S == NULL) {
> ...
> - return;
> + return ERR_PTR(-ENOMEM);
> }
> )
> ...
> (
> - __drm_atomic_helper_plane_reset(P, PS);
> + __drm_atomic_helper_plane_state_init(PS, P);
> |
> - __drm_gem_reset_shadow_plane(P, PS);
> + __drm_gem_shadow_plane_state_init(P, PS);
> )
> ...
> }
>
> @update_early_return depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> identifier P;
> expression PS;
> @@
> struct drm_plane_state *new_name(struct drm_plane *P)
> {
> <+...
> - return;
> + return ERR_PTR(-EINVAL);
> ...+>
> }
>
> @update_return_plane depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> identifier P;
> expression PS;
> @@
> struct drm_plane_state *new_name(struct drm_plane *P)
> {
> ...
> __drm_atomic_helper_plane_state_init(PS, P);
> ...
> +
> + return PS;
> }
>
> @update_return_shadow depends on update_struct@
> identifier renamed_func.new_name;
> identifier P;
> expression PS;
> @@
> struct drm_plane_state *new_name(struct drm_plane *P)
> {
> ...
> __drm_gem_shadow_plane_state_init(P, PS);
> ...
> +
> + return &PS->base;
> }
>
> Signed-off-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
^ permalink raw reply [flat|nested] 54+ messages in thread
* Re: [PATCH v4 01/41] drm/simple-kms: Remove unused reset_plane hook
2026-09-08 14:46 ` [PATCH v4 01/41] drm/simple-kms: Remove unused reset_plane hook Maxime Ripard
@ 2026-09-10 6:30 ` Thomas Zimmermann
0 siblings, 0 replies; 54+ messages in thread
From: Thomas Zimmermann @ 2026-09-10 6:30 UTC (permalink / raw)
To: Maxime Ripard, Maarten Lankhorst, David Airlie, Simona Vetter; +Cc: dri-devel
Am 08.09.26 um 16:46 schrieb Maxime Ripard:
> Commit 7f879284390c ("drm/simple-kms: Switch to atomic_create_state")
> replaced drm_simple_kms_plane_reset() with
> drm_simple_kms_plane_create_state(), removing the only user of the
> reset_plane hook. However, the hook itself was left behind in struct
> drm_simple_display_pipe_funcs.
>
> Remove it.
>
> Fixes: 7f879284390c ("drm/simple-kms: Switch to atomic_create_state")
> Signed-off-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
> ---
> include/drm/drm_simple_kms_helper.h | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/include/drm/drm_simple_kms_helper.h b/include/drm/drm_simple_kms_helper.h
> index 4a4a840d84f1..2b31c25c57a9 100644
> --- a/include/drm/drm_simple_kms_helper.h
> +++ b/include/drm/drm_simple_kms_helper.h
> @@ -40,11 +40,10 @@ struct drm_simple_display_pipe_funcs {
> int (*enable_vblank)(struct drm_simple_display_pipe *pipe);
> void (*disable_vblank)(struct drm_simple_display_pipe *pipe);
> struct drm_crtc_state * (*duplicate_crtc_state)(struct drm_simple_display_pipe *pipe);
> void (*destroy_crtc_state)(struct drm_simple_display_pipe *pipe,
> struct drm_crtc_state *crtc_state);
> - void (*reset_plane)(struct drm_simple_display_pipe *pipe);
> struct drm_plane_state * (*create_plane_state)(struct drm_simple_display_pipe *pipe);
> struct drm_plane_state * (*duplicate_plane_state)(struct drm_simple_display_pipe *pipe);
> void (*destroy_plane_state)(struct drm_simple_display_pipe *pipe,
> struct drm_plane_state *plane_state);
> };
>
--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstr. 146, 90461 Nürnberg, Germany, www.suse.com
GF: Jochen Jaser, Andrew McDonald, (HRB 36809, AG Nürnberg)
^ permalink raw reply [flat|nested] 54+ messages in thread
* Re: [PATCH v4 02/41] drm/vkms: Move frame_info into vkms_plane_state
2026-09-08 14:46 ` [PATCH v4 02/41] drm/vkms: Move frame_info into vkms_plane_state Maxime Ripard
@ 2026-09-10 6:33 ` Thomas Zimmermann
0 siblings, 0 replies; 54+ messages in thread
From: Thomas Zimmermann @ 2026-09-10 6:33 UTC (permalink / raw)
To: Maxime Ripard, Maarten Lankhorst, David Airlie, Simona Vetter
Cc: dri-devel, hamohammed.sa, louis.chauvet, melissa.srw
Am 08.09.26 um 16:46 schrieb Maxime Ripard:
> The vkms_frame_info structure is allocated separately in
> vkms_plane_duplicate_state() and freed in vkms_plane_destroy_state(),
> but has the exact same lifetime as the vkms_plane_state that contains
> it.
>
> This separate allocation is fragile: frame_info is only allocated in
> duplicate_state, so any other path that creates a vkms_plane_state
> produces a state with a NULL frame_info pointer. Both
> vkms_plane_atomic_update() and vkms_plane_destroy_state() dereference
> it unconditionally when a CRTC is set.
>
> Embed frame_info directly in vkms_plane_state. The structure is
> zero-initialized as part of the kzalloc, removing the need for a
> separate allocation and its error handling in duplicate_state, and the
> matching kfree in destroy_state.
>
> Signed-off-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
You can also take this r-b for the free-standing patch if you like.
>
> ---
>
> Cc: hamohammed.sa@gmail.com
> Cc: louis.chauvet@bootlin.com
> Cc: melissa.srw@gmail.com
> ---
> drivers/gpu/drm/vkms/vkms_composer.c | 30 +++++++++++-----------
> drivers/gpu/drm/vkms/vkms_drv.h | 2 +-
> drivers/gpu/drm/vkms/vkms_formats.c | 48 ++++++++++++++++++------------------
> drivers/gpu/drm/vkms/vkms_plane.c | 21 +++-------------
> 4 files changed, 44 insertions(+), 57 deletions(-)
>
> diff --git a/drivers/gpu/drm/vkms/vkms_composer.c b/drivers/gpu/drm/vkms/vkms_composer.c
> index 899120cd07ac..0fc915a954ba 100644
> --- a/drivers/gpu/drm/vkms/vkms_composer.c
> +++ b/drivers/gpu/drm/vkms/vkms_composer.c
> @@ -309,11 +309,11 @@ static void clamp_line_coordinates(enum pixel_read_direction direction,
> int *src_y_start, int *dst_x_start, int *pixel_count)
> {
> /* By default the start points are correct */
> *src_x_start = src_line->x1;
> *src_y_start = src_line->y1;
> - *dst_x_start = current_plane->frame_info->dst.x1;
> + *dst_x_start = current_plane->frame_info.dst.x1;
>
> /* Get the correct number of pixel to blend, it depends of the direction */
> switch (direction) {
> case READ_LEFT_TO_RIGHT:
> case READ_RIGHT_TO_LEFT:
> @@ -337,23 +337,23 @@ static void clamp_line_coordinates(enum pixel_read_direction direction,
> if (*src_x_start < 0) {
> *pixel_count += *src_x_start;
> *dst_x_start -= *src_x_start;
> *src_x_start = 0;
> }
> - if (*src_x_start + *pixel_count > current_plane->frame_info->fb->width)
> - *pixel_count = max(0, (int)current_plane->frame_info->fb->width -
> + if (*src_x_start + *pixel_count > current_plane->frame_info.fb->width)
> + *pixel_count = max(0, (int)current_plane->frame_info.fb->width -
> *src_x_start);
> break;
> case READ_BOTTOM_TO_TOP:
> case READ_TOP_TO_BOTTOM:
> if (*src_y_start < 0) {
> *pixel_count += *src_y_start;
> *dst_x_start -= *src_y_start;
> *src_y_start = 0;
> }
> - if (*src_y_start + *pixel_count > current_plane->frame_info->fb->height)
> - *pixel_count = max(0, (int)current_plane->frame_info->fb->height -
> + if (*src_y_start + *pixel_count > current_plane->frame_info.fb->height)
> + *pixel_count = max(0, (int)current_plane->frame_info.fb->height -
> *src_y_start);
> break;
> }
> }
>
> @@ -372,24 +372,24 @@ static void blend_line(struct vkms_plane_state *current_plane, int y,
> {
> int src_x_start, src_y_start, dst_x_start, pixel_count;
> struct drm_rect dst_line, tmp_src, src_line;
>
> /* Avoid rendering useless lines */
> - if (y < current_plane->frame_info->dst.y1 ||
> - y >= current_plane->frame_info->dst.y2)
> + if (y < current_plane->frame_info.dst.y1 ||
> + y >= current_plane->frame_info.dst.y2)
> return;
>
> /*
> * dst_line is the line to copy. The initial coordinates are inside the
> * destination framebuffer, and then drm_rect_* helpers are used to
> * compute the correct position into the source framebuffer.
> */
> - dst_line = DRM_RECT_INIT(current_plane->frame_info->dst.x1, y,
> - drm_rect_width(¤t_plane->frame_info->dst),
> + dst_line = DRM_RECT_INIT(current_plane->frame_info.dst.x1, y,
> + drm_rect_width(¤t_plane->frame_info.dst),
> 1);
>
> - drm_rect_fp_to_int(&tmp_src, ¤t_plane->frame_info->src);
> + drm_rect_fp_to_int(&tmp_src, ¤t_plane->frame_info.src);
>
> /*
> * [1]: Clamping src_line to the crtc_x_limit to avoid writing outside of
> * the destination buffer
> */
> @@ -409,21 +409,21 @@ static void blend_line(struct vkms_plane_state *current_plane, int y,
> * - Invert the rotation. This assumes that
> * dst = drm_rect_rotate(src, rotation) (dst and src have the
> * same size, but can be rotated).
> * - Apply the offset of the source rectangle to the coordinate.
> */
> - drm_rect_translate(&src_line, -current_plane->frame_info->dst.x1,
> - -current_plane->frame_info->dst.y1);
> + drm_rect_translate(&src_line, -current_plane->frame_info.dst.x1,
> + -current_plane->frame_info.dst.y1);
> drm_rect_rotate_inv(&src_line, drm_rect_width(&tmp_src),
> drm_rect_height(&tmp_src),
> - current_plane->frame_info->rotation);
> + current_plane->frame_info.rotation);
> drm_rect_translate(&src_line, tmp_src.x1, tmp_src.y1);
>
> /* Get the correct reading direction in the source buffer. */
>
> enum pixel_read_direction direction =
> - direction_for_rotation(current_plane->frame_info->rotation);
> + direction_for_rotation(current_plane->frame_info.rotation);
>
> /* [2]: Compute and clamp the number of pixel to read */
> clamp_line_coordinates(direction, current_plane, &src_line, &src_x_start, &src_y_start,
> &dst_x_start, &pixel_count);
>
> @@ -537,11 +537,11 @@ static int check_iosys_map(struct vkms_crtc_state *crtc_state)
> {
> struct vkms_plane_state **plane_state = crtc_state->active_planes;
> u32 n_active_planes = crtc_state->num_active_planes;
>
> for (size_t i = 0; i < n_active_planes; i++)
> - if (iosys_map_is_null(&plane_state[i]->frame_info->map[0]))
> + if (iosys_map_is_null(&plane_state[i]->frame_info.map[0]))
> return -1;
>
> return 0;
> }
>
> diff --git a/drivers/gpu/drm/vkms/vkms_drv.h b/drivers/gpu/drm/vkms/vkms_drv.h
> index 0933e4ce0ff0..381483aa4fb0 100644
> --- a/drivers/gpu/drm/vkms/vkms_drv.h
> +++ b/drivers/gpu/drm/vkms/vkms_drv.h
> @@ -147,11 +147,11 @@ struct conversion_matrix {
> * struct vkms_plane_state must ensure that this pointer is valid
> * @conversion_matrix: matrix used for yuv formats to convert to rgb
> */
> struct vkms_plane_state {
> struct drm_shadow_plane_state base;
> - struct vkms_frame_info *frame_info;
> + struct vkms_frame_info frame_info;
> pixel_read_line_t pixel_read_line;
> struct conversion_matrix conversion_matrix;
> };
>
> struct vkms_plane {
> diff --git a/drivers/gpu/drm/vkms/vkms_formats.c b/drivers/gpu/drm/vkms/vkms_formats.c
> index 964b574d9ed7..7f1f29b589e8 100644
> --- a/drivers/gpu/drm/vkms/vkms_formats.c
> +++ b/drivers/gpu/drm/vkms/vkms_formats.c
> @@ -319,14 +319,14 @@ EXPORT_SYMBOL_IF_KUNIT(argb_u16_from_yuv161616);
> static void function_name(const struct vkms_plane_state *plane, int x_start, \
> int y_start, enum pixel_read_direction direction, int count, \
> struct pixel_argb_u16 out_pixel[]) \
> { \
> struct pixel_argb_u16 *end = out_pixel + count; \
> - int step = get_block_step_bytes(plane->frame_info->fb, direction, 0); \
> + int step = get_block_step_bytes(plane->frame_info.fb, direction, 0); \
> u8 *src_pixels; \
> \
> - packed_pixels_addr_1x1(plane->frame_info, x_start, y_start, 0, &src_pixels); \
> + packed_pixels_addr_1x1(&plane->frame_info, x_start, y_start, 0, &src_pixels); \
> \
> while (out_pixel < end) { \
> pixel_type *(pixel_name) = (pixel_type *)src_pixels; \
> *out_pixel = (callback)(__VA_ARGS__); \
> out_pixel += 1; \
> @@ -377,20 +377,20 @@ static void function_name(const struct vkms_plane_state *plane, int x_start, \
> static void Rx_read_line(const struct vkms_plane_state *plane, int x_start,
> int y_start, enum pixel_read_direction direction, int count,
> struct pixel_argb_u16 out_pixel[])
> {
> struct pixel_argb_u16 *end = out_pixel + count;
> - int bits_per_pixel = drm_format_info_bpp(plane->frame_info->fb->format, 0);
> + int bits_per_pixel = drm_format_info_bpp(plane->frame_info.fb->format, 0);
> u8 *src_pixels;
> int rem_x, rem_y;
>
> - WARN_ONCE(drm_format_info_block_height(plane->frame_info->fb->format, 0) != 1,
> + WARN_ONCE(drm_format_info_block_height(plane->frame_info.fb->format, 0) != 1,
> "%s() only support formats with block_h == 1", __func__);
>
> - packed_pixels_addr(plane->frame_info, x_start, y_start, 0, &src_pixels, &rem_x, &rem_y);
> + packed_pixels_addr(&plane->frame_info, x_start, y_start, 0, &src_pixels, &rem_x, &rem_y);
> int bit_offset = (8 - bits_per_pixel) - rem_x * bits_per_pixel;
> - int step = get_block_step_bytes(plane->frame_info->fb, direction, 0);
> + int step = get_block_step_bytes(plane->frame_info.fb, direction, 0);
> int mask = (0x1 << bits_per_pixel) - 1;
> int lum_per_level = 0xFFFF / mask;
>
> if (direction == READ_LEFT_TO_RIGHT || direction == READ_RIGHT_TO_LEFT) {
> int restart_bit_offset;
> @@ -501,19 +501,19 @@ static void function_name(const struct vkms_plane_state *plane, int x_start, \
> struct pixel_argb_u16 out_pixel[]) \
> { \
> u8 *plane_1; \
> u8 *plane_2; \
> \
> - packed_pixels_addr_1x1(plane->frame_info, x_start, y_start, 0, \
> + packed_pixels_addr_1x1(&plane->frame_info, x_start, y_start, 0, \
> &plane_1); \
> - packed_pixels_addr_1x1(plane->frame_info, \
> - x_start / plane->frame_info->fb->format->hsub, \
> - y_start / plane->frame_info->fb->format->vsub, 1, \
> + packed_pixels_addr_1x1(&plane->frame_info, \
> + x_start / plane->frame_info.fb->format->hsub, \
> + y_start / plane->frame_info.fb->format->vsub, 1, \
> &plane_2); \
> - int step_1 = get_block_step_bytes(plane->frame_info->fb, direction, 0); \
> - int step_2 = get_block_step_bytes(plane->frame_info->fb, direction, 1); \
> - int subsampling = get_subsampling(plane->frame_info->fb->format, direction); \
> + int step_1 = get_block_step_bytes(plane->frame_info.fb, direction, 0); \
> + int step_2 = get_block_step_bytes(plane->frame_info.fb, direction, 1); \
> + int subsampling = get_subsampling(plane->frame_info.fb->format, direction); \
> int subsampling_offset = get_subsampling_offset(direction, x_start, y_start); \
> const struct conversion_matrix *conversion_matrix = &plane->conversion_matrix; \
> \
> for (int i = 0; i < count; i++) { \
> pixel_1_type *(pixel_1_name) = (pixel_1_type *)plane_1; \
> @@ -546,24 +546,24 @@ static void planar_yuv_read_line(const struct vkms_plane_state *plane, int x_sta
> {
> u8 *y_plane;
> u8 *channel_1_plane;
> u8 *channel_2_plane;
>
> - packed_pixels_addr_1x1(plane->frame_info, x_start, y_start, 0,
> + packed_pixels_addr_1x1(&plane->frame_info, x_start, y_start, 0,
> &y_plane);
> - packed_pixels_addr_1x1(plane->frame_info,
> - x_start / plane->frame_info->fb->format->hsub,
> - y_start / plane->frame_info->fb->format->vsub, 1,
> + packed_pixels_addr_1x1(&plane->frame_info,
> + x_start / plane->frame_info.fb->format->hsub,
> + y_start / plane->frame_info.fb->format->vsub, 1,
> &channel_1_plane);
> - packed_pixels_addr_1x1(plane->frame_info,
> - x_start / plane->frame_info->fb->format->hsub,
> - y_start / plane->frame_info->fb->format->vsub, 2,
> + packed_pixels_addr_1x1(&plane->frame_info,
> + x_start / plane->frame_info.fb->format->hsub,
> + y_start / plane->frame_info.fb->format->vsub, 2,
> &channel_2_plane);
> - int step_y = get_block_step_bytes(plane->frame_info->fb, direction, 0);
> - int step_channel_1 = get_block_step_bytes(plane->frame_info->fb, direction, 1);
> - int step_channel_2 = get_block_step_bytes(plane->frame_info->fb, direction, 2);
> - int subsampling = get_subsampling(plane->frame_info->fb->format, direction);
> + int step_y = get_block_step_bytes(plane->frame_info.fb, direction, 0);
> + int step_channel_1 = get_block_step_bytes(plane->frame_info.fb, direction, 1);
> + int step_channel_2 = get_block_step_bytes(plane->frame_info.fb, direction, 2);
> + int subsampling = get_subsampling(plane->frame_info.fb->format, direction);
> int subsampling_offset = get_subsampling_offset(direction, x_start, y_start);
> const struct conversion_matrix *conversion_matrix = &plane->conversion_matrix;
>
> for (int i = 0; i < count; i++) {
> *out_pixel = argb_u16_from_yuv161616(conversion_matrix,
> diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c
> index 6ee5c3f3207c..2fd4edf2d190 100644
> --- a/drivers/gpu/drm/vkms/vkms_plane.c
> +++ b/drivers/gpu/drm/vkms/vkms_plane.c
> @@ -53,25 +53,15 @@ static const u32 vkms_formats[] = {
>
> static struct drm_plane_state *
> vkms_plane_duplicate_state(struct drm_plane *plane)
> {
> struct vkms_plane_state *vkms_state;
> - struct vkms_frame_info *frame_info;
>
> vkms_state = kzalloc_obj(*vkms_state);
> if (!vkms_state)
> return NULL;
>
> - frame_info = kzalloc_obj(*frame_info);
> - if (!frame_info) {
> - DRM_DEBUG_KMS("Couldn't allocate frame_info\n");
> - kfree(vkms_state);
> - return NULL;
> - }
> -
> - vkms_state->frame_info = frame_info;
> -
> __drm_gem_duplicate_shadow_plane_state(plane, &vkms_state->base);
>
> return &vkms_state->base.base;
> }
>
> @@ -79,21 +69,18 @@ static void vkms_plane_destroy_state(struct drm_plane *plane,
> struct drm_plane_state *old_state)
> {
> struct vkms_plane_state *vkms_state = to_vkms_plane_state(old_state);
> struct drm_crtc *crtc = vkms_state->base.base.crtc;
>
> - if (crtc && vkms_state->frame_info->fb) {
> + if (crtc && vkms_state->frame_info.fb) {
> /* dropping the reference we acquired in
> * vkms_primary_plane_update()
> */
> - if (drm_framebuffer_read_refcount(vkms_state->frame_info->fb))
> - drm_framebuffer_put(vkms_state->frame_info->fb);
> + if (drm_framebuffer_read_refcount(vkms_state->frame_info.fb))
> + drm_framebuffer_put(vkms_state->frame_info.fb);
> }
>
> - kfree(vkms_state->frame_info);
> - vkms_state->frame_info = NULL;
> -
> __drm_gem_destroy_shadow_plane_state(&vkms_state->base);
> kfree(vkms_state);
> }
>
> static void vkms_plane_reset(struct drm_plane *plane)
> @@ -141,11 +128,11 @@ static void vkms_plane_atomic_update(struct drm_plane *plane,
>
> fmt = fb->format->format;
> vkms_plane_state = to_vkms_plane_state(new_state);
> shadow_plane_state = &vkms_plane_state->base;
>
> - frame_info = vkms_plane_state->frame_info;
> + frame_info = &vkms_plane_state->frame_info;
> memcpy(&frame_info->src, &new_state->src, sizeof(struct drm_rect));
> memcpy(&frame_info->dst, &new_state->dst, sizeof(struct drm_rect));
> frame_info->fb = fb;
> memcpy(&frame_info->map, &shadow_plane_state->data, sizeof(frame_info->map));
> drm_framebuffer_get(frame_info->fb);
>
--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstr. 146, 90461 Nürnberg, Germany, www.suse.com
GF: Jochen Jaser, Andrew McDonald, (HRB 36809, AG Nürnberg)
^ permalink raw reply [flat|nested] 54+ messages in thread
* Re: [PATCH v4 28/41] drm/atmel-hlcdc: Drop spurious csc_init call from reset
2026-09-08 14:46 ` [PATCH v4 28/41] drm/atmel-hlcdc: Drop spurious csc_init call from reset Maxime Ripard
@ 2026-09-10 6:48 ` Thomas Zimmermann
0 siblings, 0 replies; 54+ messages in thread
From: Thomas Zimmermann @ 2026-09-10 6:48 UTC (permalink / raw)
To: Maxime Ripard, Maarten Lankhorst, David Airlie, Simona Vetter
Cc: dri-devel, Dharma Balasubiramani, Ludovic Desroches,
Manikandan Muralidharan
Am 08.09.26 um 16:46 schrieb Maxime Ripard:
> The lcdc_csc_init callback was introduced in commit aa71584b323a ("drm:
> atmel-hlcdc: add driver ops to differentiate HLCDC and XLCDC IP") and
> called only once, at init time, from atmel_hlcdc_plane_init_properties().
>
> commit 81af99cbd9e4 ("drm/atmel-hlcdc: destroy properly the plane state
> in the reset callback") then reworked the reset hook to use
> atmel_hlcdc_plane_atomic_destroy_state() instead of duplicating the
> code. However, it also introduced a new call to lcdc_csc_init in the
> reset path that wasn't there before and wasn't mentioned in the commit
> log.
>
> Since CSC coefficients are hardware constants that only need to be
> written once at init time. This also prevents the conversion to
> atomic_create_state, which must not have any hardware side-effect.
>
> Fixes: 81af99cbd9e4 ("drm/atmel-hlcdc: destroy properly the plane state in the reset callback")
> Signed-off-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
This looks reasonable, but I don't dare giving it a full r-b.
>
> ---
> Cc: Dharma Balasubiramani <dharma.b@microchip.com>
> Cc: Ludovic Desroches <ludovic.desroches@microchip.com>
> Cc: Manikandan Muralidharan <manikandan.m@microchip.com>
> ---
> drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 5 -----
> 1 file changed, 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> index f17a832351e9..70a1cef24388 100644
> --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> @@ -1184,12 +1184,10 @@ static void atmel_hlcdc_plane_atomic_destroy_state(struct drm_plane *p,
> }
>
> static void atmel_hlcdc_plane_reset(struct drm_plane *p)
> {
> struct atmel_hlcdc_plane_state *state;
> - struct atmel_hlcdc_dc *dc = p->dev->dev_private;
> - struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p);
>
> if (p->state) {
> atmel_hlcdc_plane_atomic_destroy_state(p, p->state);
> p->state = NULL;
> }
> @@ -1202,13 +1200,10 @@ static void atmel_hlcdc_plane_reset(struct drm_plane *p)
> "Failed to allocate initial plane state\n");
> return;
> }
> __drm_atomic_helper_plane_reset(p, &state->base);
> }
> -
> - if (plane->layer.desc->layout.csc)
> - dc->desc->ops->lcdc_csc_init(plane, plane->layer.desc);
> }
>
> static const struct drm_plane_funcs layer_plane_funcs = {
> .update_plane = drm_atomic_helper_update_plane,
> .disable_plane = drm_atomic_helper_disable_plane,
>
--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstr. 146, 90461 Nürnberg, Germany, www.suse.com
GF: Jochen Jaser, Andrew McDonald, (HRB 36809, AG Nürnberg)
^ permalink raw reply [flat|nested] 54+ messages in thread
* Re: [PATCH v4 32/41] drm/mediatek: Convert to atomic_create_state
2026-09-08 14:47 ` [PATCH v4 32/41] drm/mediatek: " Maxime Ripard
@ 2026-09-10 6:54 ` Thomas Zimmermann
0 siblings, 0 replies; 54+ messages in thread
From: Thomas Zimmermann @ 2026-09-10 6:54 UTC (permalink / raw)
To: Maxime Ripard, Maarten Lankhorst, David Airlie, Simona Vetter
Cc: dri-devel, angelogioacchino.delregno, chunkuang.hu, matthias.bgg,
p.zabel
Am 08.09.26 um 16:47 schrieb Maxime Ripard:
[...]
> -static void mtk_plane_reset(struct drm_plane *plane)
> +static struct drm_plane_state *mtk_plane_create_state(struct drm_plane *plane)
> {
> struct mtk_plane_state *state;
> + state = kzalloc_obj(*state);
I think check-patch will warn about a missing empty line.
> + if (!state)
> + return ERR_PTR(-ENOMEM);
>
> - if (plane->state) {
> - __drm_atomic_helper_plane_destroy_state(plane->state);
> -
> - state = to_mtk_plane_state(plane->state);
> - memset(state, 0, sizeof(*state));
> - } else {
> - state = kzalloc_obj(*state);
> - if (!state)
> - return;
> - }
> -
> - __drm_atomic_helper_plane_reset(plane, &state->base);
> + __drm_atomic_helper_plane_state_init(&state->base, plane);
>
> state->base.plane = plane;
> state->pending.format = DRM_FORMAT_RGB565;
> state->pending.modifier = DRM_FORMAT_MOD_LINEAR;
I can't find where these settings come from.
> +
> + return &state->base;
> }
>
> static struct drm_plane_state *mtk_plane_duplicate_state(struct drm_plane *plane)
> {
> struct mtk_plane_state *old_state = to_mtk_plane_state(plane->state);
> @@ -219,11 +213,11 @@ static void mtk_plane_atomic_async_update(struct drm_plane *plane,
>
> static const struct drm_plane_funcs mtk_plane_funcs = {
> .update_plane = drm_atomic_helper_update_plane,
> .disable_plane = drm_atomic_helper_disable_plane,
> .destroy = drm_plane_cleanup,
> - .reset = mtk_plane_reset,
> + .atomic_create_state = mtk_plane_create_state,
> .atomic_duplicate_state = mtk_plane_duplicate_state,
> .atomic_destroy_state = mtk_plane_destroy_state,
> .format_mod_supported = mtk_plane_format_mod_supported,
> };
>
>
--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstr. 146, 90461 Nürnberg, Germany, www.suse.com
GF: Jochen Jaser, Andrew McDonald, (HRB 36809, AG Nürnberg)
^ permalink raw reply [flat|nested] 54+ messages in thread
* Re: [PATCH v4 33/41] drm/nouveau: Convert to atomic_create_state
2026-09-08 14:47 ` [PATCH v4 33/41] drm/nouveau: " Maxime Ripard
@ 2026-09-10 6:55 ` Thomas Zimmermann
0 siblings, 0 replies; 54+ messages in thread
From: Thomas Zimmermann @ 2026-09-10 6:55 UTC (permalink / raw)
To: Maxime Ripard, Maarten Lankhorst, David Airlie, Simona Vetter
Cc: dri-devel, Lyude Paul, dakr, nouveau
Am 08.09.26 um 16:47 schrieb Maxime Ripard:
> The plane reset implementation creates a custom state
> subclass, but only initializes a pristine state without resetting any
> hardware. This is equivalent to what atomic_create_state expects.
> Convert to it.
>
> The conversion was done using the following Coccinelle semantic patch:
>
> @@
> identifier funcs;
> symbol drm_atomic_helper_plane_reset;
> symbol drm_atomic_helper_plane_create_state;
> @@
>
> struct drm_plane_funcs funcs = {
> ...,
> - .reset = drm_atomic_helper_plane_reset,
> + .atomic_create_state = drm_atomic_helper_plane_create_state,
> ...,
> };
>
> @match_struct_reset@
> identifier funcs, reset_func;
> @@
> struct drm_plane_funcs funcs = {
> ...,
> .reset = reset_func,
> ...,
> };
>
> @reset_uses_helpers depends on match_struct_reset@
> identifier match_struct_reset.reset_func;
> @@
>
> void reset_func(...)
> {
> <+...
> (
> __drm_atomic_helper_plane_reset(...);
> |
> __drm_gem_reset_shadow_plane(...);
> )
> ...+>
> }
>
> @match_struct_destroy@
> identifier funcs, destroy_func;
> @@
> struct drm_plane_funcs funcs = {
> ...,
> .atomic_destroy_state = destroy_func,
> ...,
> };
>
> @script:python renamed_func@
> old_name << match_struct_reset.reset_func;
> new_name;
> @@
> if old_name.endswith("_reset"):
> coccinelle.new_name = old_name.replace("_reset", "_create_state")
> else:
> coccinelle.new_name = old_name
>
> @update_struct depends on match_struct_reset && reset_uses_helpers@
> identifier match_struct_reset.funcs, match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> @@
> struct drm_plane_funcs funcs = {
> ...,
> - .reset = reset_func,
> + .atomic_create_state = new_name,
> ...,
> };
>
> @drop_destroy depends on update_struct && match_struct_destroy@
> identifier match_struct_reset.reset_func;
> identifier match_struct_destroy.destroy_func;
> identifier container_func;
> identifier P;
> symbol drm_atomic_helper_plane_destroy_state;
> symbol __drm_atomic_helper_plane_destroy_state;
> @@
>
> void reset_func(struct drm_plane *P)
> {
> ...
> (
> - if (P->state) {
> - <+...
> (
> - drm_atomic_helper_plane_destroy_state(P, P->state);
> |
> - __drm_atomic_helper_plane_destroy_state(P->state);
> |
> - P->funcs->atomic_destroy_state(P, P->state);
> |
> - destroy_func(P, P->state);
> )
> - ...+>
> - }
> |
> - drm_WARN_ON_ONCE(P->dev, P->state);
> |
> - WARN_ON(P->state);
> )
> ...
> (
> - kfree(P->state);
> |
> - kfree(container_func(P->state));
> |
> // kfree is optional
> )
> (
> - P->state = NULL;
> |
> // plane->state clearing is optional
> )
> ...
> }
>
> @drop_destroy_mtk depends on update_struct@
> identifier P;
> symbol __drm_atomic_helper_plane_destroy_state;
> symbol to_mtk_plane_state;
> @@
>
> void mtk_plane_reset(struct drm_plane *P)
> {
> ...
> - if (P->state) {
> - __drm_atomic_helper_plane_destroy_state(P->state);
> - ...
> - } else {
> ...
> - }
> ...
> }
>
> @transform_nv50_wndw depends on update_struct@
> identifier S;
> @@
>
> void nv50_wndw_reset(...)
> {
> ...
> - if (WARN_ON(!(S = kzalloc_obj(*S))))
> + S = kzalloc_obj(*S);
> + if (WARN_ON(!S))
> return;
> ...
> }
>
> @transform_kzalloc depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier P, S;
> statement ST;
> statement list STL;
> @@
>
> void reset_func(struct drm_plane *P)
> {
> <...
> S = kzalloc_obj(*S);
> (
> - if (S)
> - {
> - STL
> - }
> + if (!S) return;
> +
> + STL
> |
> - if (S) ST
> + if (!S) return;
> +
> + ST
> )
> ...>
> }
>
> @transform_body depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> identifier S, P;
> expression PS;
> @@
> - void reset_func(struct drm_plane *P)
> + struct drm_plane_state *new_name(struct drm_plane *P)
> {
> ...
> S = kzalloc_obj(*S);
> ...
> (
> if (!S) {
> ...
> - return;
> + return ERR_PTR(-ENOMEM);
> }
> |
> if (WARN_ON(!S)) {
> ...
> - return;
> + return ERR_PTR(-ENOMEM);
> }
> |
> if (S == NULL) {
> ...
> - return;
> + return ERR_PTR(-ENOMEM);
> }
> )
> ...
> (
> - __drm_atomic_helper_plane_reset(P, PS);
> + __drm_atomic_helper_plane_state_init(PS, P);
> |
> - __drm_gem_reset_shadow_plane(P, PS);
> + __drm_gem_shadow_plane_state_init(P, PS);
> )
> ...
> }
>
> @update_early_return depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> identifier P;
> expression PS;
> @@
> struct drm_plane_state *new_name(struct drm_plane *P)
> {
> <+...
> - return;
> + return ERR_PTR(-EINVAL);
> ...+>
> }
>
> @update_return_plane depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> identifier P;
> expression PS;
> @@
> struct drm_plane_state *new_name(struct drm_plane *P)
> {
> ...
> __drm_atomic_helper_plane_state_init(PS, P);
> ...
> +
> + return PS;
> }
>
> @update_return_shadow depends on update_struct@
> identifier renamed_func.new_name;
> identifier P;
> expression PS;
> @@
> struct drm_plane_state *new_name(struct drm_plane *P)
> {
> ...
> __drm_gem_shadow_plane_state_init(P, PS);
> ...
> +
> + return &PS->base;
> }
>
> Reviewed-by: Lyude Paul <lyude@redhat.com>
> Signed-off-by: Maxime Ripard <mripard@kernel.org>
> ---
> Cc: dakr@kernel.org
> Cc: lyude@redhat.com
> Cc: nouveau@lists.freedesktop.org
> ---
> drivers/gpu/drm/nouveau/dispnv50/wndw.c | 15 +++++++--------
> 1 file changed, 7 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/nouveau/dispnv50/wndw.c b/drivers/gpu/drm/nouveau/dispnv50/wndw.c
> index 15a322422f4e..378095138d12 100644
> --- a/drivers/gpu/drm/nouveau/dispnv50/wndw.c
> +++ b/drivers/gpu/drm/nouveau/dispnv50/wndw.c
> @@ -750,22 +750,21 @@ nv50_wndw_zpos_default(struct drm_plane *plane)
> {
> return (plane->type == DRM_PLANE_TYPE_PRIMARY) ? 0 :
> (plane->type == DRM_PLANE_TYPE_OVERLAY) ? 1 : 255;
> }
>
> -static void
> -nv50_wndw_reset(struct drm_plane *plane)
> +static struct drm_plane_state *nv50_wndw_create_state(struct drm_plane *plane)
> {
> struct nv50_wndw_atom *asyw;
>
> - if (WARN_ON(!(asyw = kzalloc_obj(*asyw))))
> - return;
> + asyw = kzalloc_obj(*asyw);
> + if (WARN_ON(!asyw))
Wasn't there already a warning about failed allocation in kzalloc(). I
think the WARN_ON can go.
> + return ERR_PTR(-ENOMEM);
>
> - if (plane->state)
> - plane->funcs->atomic_destroy_state(plane, plane->state);
> + __drm_atomic_helper_plane_state_init(&asyw->state, plane);
>
> - __drm_atomic_helper_plane_reset(plane, &asyw->state);
> + return &asyw->state;
> }
>
> static void
> nv50_wndw_destroy(struct drm_plane *plane)
> {
> @@ -835,11 +834,11 @@ static bool nv50_plane_format_mod_supported(struct drm_plane *plane,
> const struct drm_plane_funcs
> nv50_wndw = {
> .update_plane = drm_atomic_helper_update_plane,
> .disable_plane = drm_atomic_helper_disable_plane,
> .destroy = nv50_wndw_destroy,
> - .reset = nv50_wndw_reset,
> + .atomic_create_state = nv50_wndw_create_state,
> .atomic_duplicate_state = nv50_wndw_atomic_duplicate_state,
> .atomic_destroy_state = nv50_wndw_atomic_destroy_state,
> .format_mod_supported = nv50_plane_format_mod_supported,
> };
>
>
--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstr. 146, 90461 Nürnberg, Germany, www.suse.com
GF: Jochen Jaser, Andrew McDonald, (HRB 36809, AG Nürnberg)
^ permalink raw reply [flat|nested] 54+ messages in thread
* Re: [PATCH v4 35/41] drm/rcar-du: Convert to atomic_create_state
2026-09-08 14:47 ` [PATCH v4 35/41] drm/rcar-du: " Maxime Ripard
@ 2026-09-10 6:57 ` Thomas Zimmermann
2026-09-10 12:00 ` Laurent Pinchart
1 sibling, 0 replies; 54+ messages in thread
From: Thomas Zimmermann @ 2026-09-10 6:57 UTC (permalink / raw)
To: Maxime Ripard, Maarten Lankhorst, David Airlie, Simona Vetter
Cc: dri-devel, geert+renesas, kieran.bingham+renesas,
laurent.pinchart+renesas, linux-renesas-soc, magnus.damm,
tomi.valkeinen+renesas
Am 08.09.26 um 16:47 schrieb Maxime Ripard:
> The plane reset implementation creates a custom state
> subclass, but only initializes a pristine state without resetting any
> hardware. This is equivalent to what atomic_create_state expects.
> Convert to it.
>
> The conversion was done using the following Coccinelle semantic patch:
>
> @@
> identifier funcs;
> symbol drm_atomic_helper_plane_reset;
> symbol drm_atomic_helper_plane_create_state;
> @@
>
> struct drm_plane_funcs funcs = {
> ...,
> - .reset = drm_atomic_helper_plane_reset,
> + .atomic_create_state = drm_atomic_helper_plane_create_state,
> ...,
> };
>
> @match_struct_reset@
> identifier funcs, reset_func;
> @@
> struct drm_plane_funcs funcs = {
> ...,
> .reset = reset_func,
> ...,
> };
>
> @reset_uses_helpers depends on match_struct_reset@
> identifier match_struct_reset.reset_func;
> @@
>
> void reset_func(...)
> {
> <+...
> (
> __drm_atomic_helper_plane_reset(...);
> |
> __drm_gem_reset_shadow_plane(...);
> )
> ...+>
> }
>
> @match_struct_destroy@
> identifier funcs, destroy_func;
> @@
> struct drm_plane_funcs funcs = {
> ...,
> .atomic_destroy_state = destroy_func,
> ...,
> };
>
> @script:python renamed_func@
> old_name << match_struct_reset.reset_func;
> new_name;
> @@
> if old_name.endswith("_reset"):
> coccinelle.new_name = old_name.replace("_reset", "_create_state")
> else:
> coccinelle.new_name = old_name
>
> @update_struct depends on match_struct_reset && reset_uses_helpers@
> identifier match_struct_reset.funcs, match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> @@
> struct drm_plane_funcs funcs = {
> ...,
> - .reset = reset_func,
> + .atomic_create_state = new_name,
> ...,
> };
>
> @drop_destroy depends on update_struct && match_struct_destroy@
> identifier match_struct_reset.reset_func;
> identifier match_struct_destroy.destroy_func;
> identifier container_func;
> identifier P;
> symbol drm_atomic_helper_plane_destroy_state;
> symbol __drm_atomic_helper_plane_destroy_state;
> @@
>
> void reset_func(struct drm_plane *P)
> {
> ...
> (
> - if (P->state) {
> - <+...
> (
> - drm_atomic_helper_plane_destroy_state(P, P->state);
> |
> - __drm_atomic_helper_plane_destroy_state(P->state);
> |
> - P->funcs->atomic_destroy_state(P, P->state);
> |
> - destroy_func(P, P->state);
> )
> - ...+>
> - }
> |
> - drm_WARN_ON_ONCE(P->dev, P->state);
> |
> - WARN_ON(P->state);
> )
> ...
> (
> - kfree(P->state);
> |
> - kfree(container_func(P->state));
> |
> // kfree is optional
> )
> (
> - P->state = NULL;
> |
> // plane->state clearing is optional
> )
> ...
> }
>
> @drop_destroy_mtk depends on update_struct@
> identifier P;
> symbol __drm_atomic_helper_plane_destroy_state;
> symbol to_mtk_plane_state;
> @@
>
> void mtk_plane_reset(struct drm_plane *P)
> {
> ...
> - if (P->state) {
> - __drm_atomic_helper_plane_destroy_state(P->state);
> - ...
> - } else {
> ...
> - }
> ...
> }
>
> @transform_nv50_wndw depends on update_struct@
> identifier S;
> @@
>
> void nv50_wndw_reset(...)
> {
> ...
> - if (WARN_ON(!(S = kzalloc_obj(*S))))
> + S = kzalloc_obj(*S);
> + if (WARN_ON(!S))
> return;
> ...
> }
>
> @transform_kzalloc depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier P, S;
> statement ST;
> statement list STL;
> @@
>
> void reset_func(struct drm_plane *P)
> {
> <...
> S = kzalloc_obj(*S);
> (
> - if (S)
> - {
> - STL
> - }
> + if (!S) return;
> +
> + STL
> |
> - if (S) ST
> + if (!S) return;
> +
> + ST
> )
> ...>
> }
>
> @transform_body depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> identifier S, P;
> expression PS;
> @@
> - void reset_func(struct drm_plane *P)
> + struct drm_plane_state *new_name(struct drm_plane *P)
> {
> ...
> S = kzalloc_obj(*S);
> ...
> (
> if (!S) {
> ...
> - return;
> + return ERR_PTR(-ENOMEM);
> }
> |
> if (WARN_ON(!S)) {
> ...
> - return;
> + return ERR_PTR(-ENOMEM);
> }
> |
> if (S == NULL) {
> ...
> - return;
> + return ERR_PTR(-ENOMEM);
> }
> )
> ...
> (
> - __drm_atomic_helper_plane_reset(P, PS);
> + __drm_atomic_helper_plane_state_init(PS, P);
> |
> - __drm_gem_reset_shadow_plane(P, PS);
> + __drm_gem_shadow_plane_state_init(P, PS);
> )
> ...
> }
>
> @update_early_return depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> identifier P;
> expression PS;
> @@
> struct drm_plane_state *new_name(struct drm_plane *P)
> {
> <+...
> - return;
> + return ERR_PTR(-EINVAL);
> ...+>
> }
>
> @update_return_plane depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> identifier P;
> expression PS;
> @@
> struct drm_plane_state *new_name(struct drm_plane *P)
> {
> ...
> __drm_atomic_helper_plane_state_init(PS, P);
> ...
> +
> + return PS;
> }
>
> @update_return_shadow depends on update_struct@
> identifier renamed_func.new_name;
> identifier P;
> expression PS;
> @@
> struct drm_plane_state *new_name(struct drm_plane *P)
> {
> ...
> __drm_gem_shadow_plane_state_init(P, PS);
> ...
> +
> + return &PS->base;
> }
>
> Signed-off-by: Maxime Ripard <mripard@kernel.org>
> ---
> Cc: geert+renesas@glider.be
> Cc: kieran.bingham+renesas@ideasonboard.com
> Cc: laurent.pinchart+renesas@ideasonboard.com
> Cc: linux-renesas-soc@vger.kernel.org
> Cc: magnus.damm@gmail.com
> Cc: tomi.valkeinen+renesas@ideasonboard.com
> ---
> drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c | 15 ++++++---------
> drivers/gpu/drm/renesas/rcar-du/rcar_du_vsp.c | 15 ++++++---------
> 2 files changed, 12 insertions(+), 18 deletions(-)
>
> diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
> index 8870766b9e54..da2dff9bb317 100644
> --- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
> +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
> @@ -710,28 +710,25 @@ static void rcar_du_plane_atomic_destroy_state(struct drm_plane *plane,
> {
> __drm_atomic_helper_plane_destroy_state(state);
> kfree(to_rcar_plane_state(state));
> }
>
> -static void rcar_du_plane_reset(struct drm_plane *plane)
> +static struct drm_plane_state *rcar_du_plane_create_state(struct drm_plane *plane)
> {
> struct rcar_du_plane_state *state;
>
> - if (plane->state) {
> - rcar_du_plane_atomic_destroy_state(plane, plane->state);
> - plane->state = NULL;
> - }
> -
> state = kzalloc_obj(*state);
> if (state == NULL)
> - return;
> + return ERR_PTR(-ENOMEM);
>
> - __drm_atomic_helper_plane_reset(plane, &state->state);
> + __drm_atomic_helper_plane_state_init(&state->state, plane);
>
> state->hwindex = -1;
> state->source = RCAR_DU_PLANE_MEMORY;
> state->colorkey = RCAR_DU_COLORKEY_NONE;
> +
> + return &state->state;
> }
>
> static int rcar_du_plane_atomic_set_property(struct drm_plane *plane,
> struct drm_plane_state *state,
> struct drm_property *property,
> @@ -765,11 +762,11 @@ static int rcar_du_plane_atomic_get_property(struct drm_plane *plane,
> }
>
> static const struct drm_plane_funcs rcar_du_plane_funcs = {
> .update_plane = drm_atomic_helper_update_plane,
> .disable_plane = drm_atomic_helper_disable_plane,
> - .reset = rcar_du_plane_reset,
> + .atomic_create_state = rcar_du_plane_create_state,
> .destroy = drm_plane_cleanup,
> .atomic_duplicate_state = rcar_du_plane_atomic_duplicate_state,
> .atomic_destroy_state = rcar_du_plane_atomic_destroy_state,
> .atomic_set_property = rcar_du_plane_atomic_set_property,
> .atomic_get_property = rcar_du_plane_atomic_get_property,
> diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_vsp.c b/drivers/gpu/drm/renesas/rcar-du/rcar_du_vsp.c
> index ae9f381b03c8..4293e792afdb 100644
> --- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_vsp.c
> +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_vsp.c
> @@ -419,30 +419,27 @@ static void rcar_du_vsp_plane_atomic_destroy_state(struct drm_plane *plane,
> {
> __drm_atomic_helper_plane_destroy_state(state);
> kfree(to_rcar_vsp_plane_state(state));
> }
>
> -static void rcar_du_vsp_plane_reset(struct drm_plane *plane)
> +static struct drm_plane_state *rcar_du_vsp_plane_create_state(struct drm_plane *plane)
> {
> struct rcar_du_vsp_plane_state *state;
>
> - if (plane->state) {
> - rcar_du_vsp_plane_atomic_destroy_state(plane, plane->state);
> - plane->state = NULL;
> - }
> -
> state = kzalloc_obj(*state);
> if (state == NULL)
Since we're here, please fix the coding style to !state.
> - return;
> + return ERR_PTR(-ENOMEM);
>
> - __drm_atomic_helper_plane_reset(plane, &state->state);
> + __drm_atomic_helper_plane_state_init(&state->state, plane);
> +
> + return &state->state;
> }
>
> static const struct drm_plane_funcs rcar_du_vsp_plane_funcs = {
> .update_plane = drm_atomic_helper_update_plane,
> .disable_plane = drm_atomic_helper_disable_plane,
> - .reset = rcar_du_vsp_plane_reset,
> + .atomic_create_state = rcar_du_vsp_plane_create_state,
> .destroy = drm_plane_cleanup,
> .atomic_duplicate_state = rcar_du_vsp_plane_atomic_duplicate_state,
> .atomic_destroy_state = rcar_du_vsp_plane_atomic_destroy_state,
> };
>
>
--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstr. 146, 90461 Nürnberg, Germany, www.suse.com
GF: Jochen Jaser, Andrew McDonald, (HRB 36809, AG Nürnberg)
^ permalink raw reply [flat|nested] 54+ messages in thread
* Re: [PATCH v4 37/41] drm/shmobile: Convert to atomic_create_state
2026-09-08 14:47 ` [PATCH v4 37/41] drm/shmobile: " Maxime Ripard
@ 2026-09-10 6:58 ` Thomas Zimmermann
0 siblings, 0 replies; 54+ messages in thread
From: Thomas Zimmermann @ 2026-09-10 6:58 UTC (permalink / raw)
To: Maxime Ripard, Maarten Lankhorst, David Airlie, Simona Vetter
Cc: dri-devel, geert+renesas, linux-renesas-soc
Am 08.09.26 um 16:47 schrieb Maxime Ripard:
> The plane reset implementation creates a custom state
> subclass, but only initializes a pristine state without resetting any
> hardware. This is equivalent to what atomic_create_state expects.
> Convert to it.
>
> The conversion was done using the following Coccinelle semantic patch:
>
> @@
> identifier funcs;
> symbol drm_atomic_helper_plane_reset;
> symbol drm_atomic_helper_plane_create_state;
> @@
>
> struct drm_plane_funcs funcs = {
> ...,
> - .reset = drm_atomic_helper_plane_reset,
> + .atomic_create_state = drm_atomic_helper_plane_create_state,
> ...,
> };
>
> @match_struct_reset@
> identifier funcs, reset_func;
> @@
> struct drm_plane_funcs funcs = {
> ...,
> .reset = reset_func,
> ...,
> };
>
> @reset_uses_helpers depends on match_struct_reset@
> identifier match_struct_reset.reset_func;
> @@
>
> void reset_func(...)
> {
> <+...
> (
> __drm_atomic_helper_plane_reset(...);
> |
> __drm_gem_reset_shadow_plane(...);
> )
> ...+>
> }
>
> @match_struct_destroy@
> identifier funcs, destroy_func;
> @@
> struct drm_plane_funcs funcs = {
> ...,
> .atomic_destroy_state = destroy_func,
> ...,
> };
>
> @script:python renamed_func@
> old_name << match_struct_reset.reset_func;
> new_name;
> @@
> if old_name.endswith("_reset"):
> coccinelle.new_name = old_name.replace("_reset", "_create_state")
> else:
> coccinelle.new_name = old_name
>
> @update_struct depends on match_struct_reset && reset_uses_helpers@
> identifier match_struct_reset.funcs, match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> @@
> struct drm_plane_funcs funcs = {
> ...,
> - .reset = reset_func,
> + .atomic_create_state = new_name,
> ...,
> };
>
> @drop_destroy depends on update_struct && match_struct_destroy@
> identifier match_struct_reset.reset_func;
> identifier match_struct_destroy.destroy_func;
> identifier container_func;
> identifier P;
> symbol drm_atomic_helper_plane_destroy_state;
> symbol __drm_atomic_helper_plane_destroy_state;
> @@
>
> void reset_func(struct drm_plane *P)
> {
> ...
> (
> - if (P->state) {
> - <+...
> (
> - drm_atomic_helper_plane_destroy_state(P, P->state);
> |
> - __drm_atomic_helper_plane_destroy_state(P->state);
> |
> - P->funcs->atomic_destroy_state(P, P->state);
> |
> - destroy_func(P, P->state);
> )
> - ...+>
> - }
> |
> - drm_WARN_ON_ONCE(P->dev, P->state);
> |
> - WARN_ON(P->state);
> )
> ...
> (
> - kfree(P->state);
> |
> - kfree(container_func(P->state));
> |
> // kfree is optional
> )
> (
> - P->state = NULL;
> |
> // plane->state clearing is optional
> )
> ...
> }
>
> @drop_destroy_mtk depends on update_struct@
> identifier P;
> symbol __drm_atomic_helper_plane_destroy_state;
> symbol to_mtk_plane_state;
> @@
>
> void mtk_plane_reset(struct drm_plane *P)
> {
> ...
> - if (P->state) {
> - __drm_atomic_helper_plane_destroy_state(P->state);
> - ...
> - } else {
> ...
> - }
> ...
> }
>
> @transform_nv50_wndw depends on update_struct@
> identifier S;
> @@
>
> void nv50_wndw_reset(...)
> {
> ...
> - if (WARN_ON(!(S = kzalloc_obj(*S))))
> + S = kzalloc_obj(*S);
> + if (WARN_ON(!S))
> return;
> ...
> }
>
> @transform_kzalloc depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier P, S;
> statement ST;
> statement list STL;
> @@
>
> void reset_func(struct drm_plane *P)
> {
> <...
> S = kzalloc_obj(*S);
> (
> - if (S)
> - {
> - STL
> - }
> + if (!S) return;
> +
> + STL
> |
> - if (S) ST
> + if (!S) return;
> +
> + ST
> )
> ...>
> }
>
> @transform_body depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> identifier S, P;
> expression PS;
> @@
> - void reset_func(struct drm_plane *P)
> + struct drm_plane_state *new_name(struct drm_plane *P)
> {
> ...
> S = kzalloc_obj(*S);
> ...
> (
> if (!S) {
> ...
> - return;
> + return ERR_PTR(-ENOMEM);
> }
> |
> if (WARN_ON(!S)) {
> ...
> - return;
> + return ERR_PTR(-ENOMEM);
> }
> |
> if (S == NULL) {
> ...
> - return;
> + return ERR_PTR(-ENOMEM);
> }
> )
> ...
> (
> - __drm_atomic_helper_plane_reset(P, PS);
> + __drm_atomic_helper_plane_state_init(PS, P);
> |
> - __drm_gem_reset_shadow_plane(P, PS);
> + __drm_gem_shadow_plane_state_init(P, PS);
> )
> ...
> }
>
> @update_early_return depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> identifier P;
> expression PS;
> @@
> struct drm_plane_state *new_name(struct drm_plane *P)
> {
> <+...
> - return;
> + return ERR_PTR(-EINVAL);
> ...+>
> }
>
> @update_return_plane depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> identifier P;
> expression PS;
> @@
> struct drm_plane_state *new_name(struct drm_plane *P)
> {
> ...
> __drm_atomic_helper_plane_state_init(PS, P);
> ...
> +
> + return PS;
> }
>
> @update_return_shadow depends on update_struct@
> identifier renamed_func.new_name;
> identifier P;
> expression PS;
> @@
> struct drm_plane_state *new_name(struct drm_plane *P)
> {
> ...
> __drm_gem_shadow_plane_state_init(P, PS);
> ...
> +
> + return &PS->base;
> }
>
> Signed-off-by: Maxime Ripard <mripard@kernel.org>
> ---
> Cc: geert+renesas@glider.be
> Cc: linux-renesas-soc@vger.kernel.org
> ---
> drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c | 15 ++++++---------
> 1 file changed, 6 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c
> index 148de34af785..4dec4d2c941e 100644
> --- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c
> +++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c
> @@ -249,24 +249,21 @@ static void shmob_drm_plane_atomic_destroy_state(struct drm_plane *plane,
> {
> __drm_atomic_helper_plane_destroy_state(state);
> kfree(to_shmob_plane_state(state));
> }
>
> -static void shmob_drm_plane_reset(struct drm_plane *plane)
> +static struct drm_plane_state *shmob_drm_plane_create_state(struct drm_plane *plane)
> {
> struct shmob_drm_plane_state *state;
>
> - if (plane->state) {
> - shmob_drm_plane_atomic_destroy_state(plane, plane->state);
> - plane->state = NULL;
> - }
> -
> state = kzalloc_obj(*state);
> if (state == NULL)
Another coding-style fix here, please.
> - return;
> + return ERR_PTR(-ENOMEM);
>
> - __drm_atomic_helper_plane_reset(plane, &state->base);
> + __drm_atomic_helper_plane_state_init(&state->base, plane);
> +
> + return &state->base;
> }
>
> static const struct drm_plane_helper_funcs shmob_drm_plane_helper_funcs = {
> .atomic_check = shmob_drm_plane_atomic_check,
> .atomic_update = shmob_drm_plane_atomic_update,
> @@ -281,11 +278,11 @@ static const struct drm_plane_helper_funcs shmob_drm_primary_plane_helper_funcs
> };
>
> static const struct drm_plane_funcs shmob_drm_plane_funcs = {
> .update_plane = drm_atomic_helper_update_plane,
> .disable_plane = drm_atomic_helper_disable_plane,
> - .reset = shmob_drm_plane_reset,
> + .atomic_create_state = shmob_drm_plane_create_state,
> .atomic_duplicate_state = shmob_drm_plane_atomic_duplicate_state,
> .atomic_destroy_state = shmob_drm_plane_atomic_destroy_state,
> };
>
> static const uint32_t formats[] = {
>
--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstr. 146, 90461 Nürnberg, Germany, www.suse.com
GF: Jochen Jaser, Andrew McDonald, (HRB 36809, AG Nürnberg)
^ permalink raw reply [flat|nested] 54+ messages in thread
* Re: [PATCH v4 39/41] drm/vmwgfx: Convert to atomic_create_state
2026-09-08 14:47 ` [PATCH v4 39/41] drm/vmwgfx: " Maxime Ripard
@ 2026-09-10 7:00 ` Thomas Zimmermann
0 siblings, 0 replies; 54+ messages in thread
From: Thomas Zimmermann @ 2026-09-10 7:00 UTC (permalink / raw)
To: Maxime Ripard, Maarten Lankhorst, David Airlie, Simona Vetter
Cc: dri-devel, Zack Rusin, bcm-kernel-feedback-list
Am 08.09.26 um 16:47 schrieb Maxime Ripard:
> The plane reset implementation creates a custom state
> subclass, but only initializes a pristine state without resetting any
> hardware. This is equivalent to what atomic_create_state expects.
> Convert to it.
>
> Reviewed-by: Zack Rusin <zack.rusin@broadcom.com>
> Signed-off-by: Maxime Ripard <mripard@kernel.org>
> ---
> Cc: bcm-kernel-feedback-list@broadcom.com
> Cc: zack.rusin@broadcom.com
> ---
> drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 17 +++++++----------
> drivers/gpu/drm/vmwgfx/vmwgfx_kms.h | 2 +-
> drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c | 4 ++--
> drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c | 4 ++--
> drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 4 ++--
> 5 files changed, 14 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
> index 0b470809661c..9031dccad31d 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
> @@ -277,31 +277,28 @@ vmw_du_plane_duplicate_state(struct drm_plane *plane)
> return state;
> }
>
>
> /**
> - * vmw_du_plane_reset - creates a blank vmw plane state
> + * vmw_du_plane_create_state - creates a blank vmw plane state
> * @plane: drm plane
> *
> - * Resets the atomic state for @plane by freeing the state pointer (which might
> - * be NULL, e.g. at driver load time) and allocating a new empty state object.
> + * Allocates a new empty state object.
> */
> -void vmw_du_plane_reset(struct drm_plane *plane)
> +struct drm_plane_state *vmw_du_plane_create_state(struct drm_plane *plane)
> {
> struct vmw_plane_state *vps;
>
> - if (plane->state)
> - vmw_du_plane_destroy_state(plane, plane->state);
> -
> vps = kzalloc_obj(*vps);
> -
> if (!vps) {
> DRM_ERROR("Cannot allocate vmw_plane_state\n");
I think this is another case where kzalloc already prints a warning for us.
> - return;
> + return ERR_PTR(-ENOMEM);
> }
>
> - __drm_atomic_helper_plane_reset(plane, &vps->base);
> + __drm_atomic_helper_plane_state_init(&vps->base, plane);
> +
> + return &vps->base;
> }
>
>
> /**
> * vmw_du_plane_destroy_state - destroy plane state
> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
> index e641f33341e6..5085d8bccf0a 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
> @@ -409,11 +409,11 @@ void vmw_du_primary_plane_destroy(struct drm_plane *plane);
> /* Atomic Helpers */
> int vmw_du_primary_plane_atomic_check(struct drm_plane *plane,
> struct drm_atomic_commit *state);
> void vmw_du_plane_cleanup_fb(struct drm_plane *plane,
> struct drm_plane_state *old_state);
> -void vmw_du_plane_reset(struct drm_plane *plane);
> +struct drm_plane_state *vmw_du_plane_create_state(struct drm_plane *plane);
> struct drm_plane_state *vmw_du_plane_duplicate_state(struct drm_plane *plane);
> void vmw_du_plane_destroy_state(struct drm_plane *plane,
> struct drm_plane_state *state);
> void vmw_du_plane_unpin_surf(struct vmw_plane_state *vps);
>
> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
> index a4b28341f622..b147f5db9df5 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
> @@ -362,20 +362,20 @@ vmw_ldu_primary_plane_atomic_update(struct drm_plane *plane,
>
> static const struct drm_plane_funcs vmw_ldu_plane_funcs = {
> .update_plane = drm_atomic_helper_update_plane,
> .disable_plane = drm_atomic_helper_disable_plane,
> .destroy = vmw_du_primary_plane_destroy,
> - .reset = vmw_du_plane_reset,
> + .atomic_create_state = vmw_du_plane_create_state,
> .atomic_duplicate_state = vmw_du_plane_duplicate_state,
> .atomic_destroy_state = vmw_du_plane_destroy_state,
> };
>
> static const struct drm_plane_funcs vmw_ldu_cursor_funcs = {
> .update_plane = drm_atomic_helper_update_plane,
> .disable_plane = drm_atomic_helper_disable_plane,
> .destroy = vmw_cursor_plane_destroy,
> - .reset = vmw_du_plane_reset,
> + .atomic_create_state = vmw_du_plane_create_state,
> .atomic_duplicate_state = vmw_du_plane_duplicate_state,
> .atomic_destroy_state = vmw_du_plane_destroy_state,
> };
>
> /*
> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
> index a05f935f1841..89714d5c235b 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
> @@ -754,20 +754,20 @@ vmw_sou_primary_plane_atomic_update(struct drm_plane *plane,
>
> static const struct drm_plane_funcs vmw_sou_plane_funcs = {
> .update_plane = drm_atomic_helper_update_plane,
> .disable_plane = drm_atomic_helper_disable_plane,
> .destroy = vmw_du_primary_plane_destroy,
> - .reset = vmw_du_plane_reset,
> + .atomic_create_state = vmw_du_plane_create_state,
> .atomic_duplicate_state = vmw_du_plane_duplicate_state,
> .atomic_destroy_state = vmw_du_plane_destroy_state,
> };
>
> static const struct drm_plane_funcs vmw_sou_cursor_funcs = {
> .update_plane = drm_atomic_helper_update_plane,
> .disable_plane = drm_atomic_helper_disable_plane,
> .destroy = vmw_cursor_plane_destroy,
> - .reset = vmw_du_plane_reset,
> + .atomic_create_state = vmw_du_plane_create_state,
> .atomic_duplicate_state = vmw_du_plane_duplicate_state,
> .atomic_destroy_state = vmw_du_plane_destroy_state,
> };
>
> /*
> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
> index 939da0e11dbb..cbf55084110a 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
> @@ -1472,20 +1472,20 @@ vmw_stdu_crtc_atomic_flush(struct drm_crtc *crtc,
>
> static const struct drm_plane_funcs vmw_stdu_plane_funcs = {
> .update_plane = drm_atomic_helper_update_plane,
> .disable_plane = drm_atomic_helper_disable_plane,
> .destroy = vmw_du_primary_plane_destroy,
> - .reset = vmw_du_plane_reset,
> + .atomic_create_state = vmw_du_plane_create_state,
> .atomic_duplicate_state = vmw_du_plane_duplicate_state,
> .atomic_destroy_state = vmw_du_plane_destroy_state,
> };
>
> static const struct drm_plane_funcs vmw_stdu_cursor_funcs = {
> .update_plane = drm_atomic_helper_update_plane,
> .disable_plane = drm_atomic_helper_disable_plane,
> .destroy = vmw_cursor_plane_destroy,
> - .reset = vmw_du_plane_reset,
> + .atomic_create_state = vmw_du_plane_create_state,
> .atomic_duplicate_state = vmw_du_plane_duplicate_state,
> .atomic_destroy_state = vmw_du_plane_destroy_state,
> };
>
>
>
--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstr. 146, 90461 Nürnberg, Germany, www.suse.com
GF: Jochen Jaser, Andrew McDonald, (HRB 36809, AG Nürnberg)
^ permalink raw reply [flat|nested] 54+ messages in thread
* Re: [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
` (40 preceding siblings ...)
2026-09-08 14:47 ` [PATCH v4 41/41] drm/plane: Remove reset Maxime Ripard
@ 2026-09-10 7:03 ` Thomas Zimmermann
41 siblings, 0 replies; 54+ messages in thread
From: Thomas Zimmermann @ 2026-09-10 7:03 UTC (permalink / raw)
To: Maxime Ripard, Maarten Lankhorst, David Airlie, Simona Vetter
Cc: dri-devel, hamohammed.sa, louis.chauvet, melissa.srw,
alexander.deucher, amd-gfx, christian.koenig, alison.wang, stefan,
John Stultz, sumit.semwal, xinliang.liu, yongqin.liu, Frank.Li,
Sascha Hauer, festevam, imx, kernel, victor.liu,
anitha.chrisanthus, paulk, chenhuacai, jeffbai, lvjianmin,
wuqianhai, xry111, zhengxingda, marex, airlied, kraxel,
spice-devel, virtualization, andy.yan, heiko, hjc, linux-rockchip,
Baolin Wang, orsonzhai, zhang.lyra, alain.volmat, rgallaispou,
alexandre.torgue, mcoquelin.stm32, philippe.cornu,
raphael.gallais-pou, yannick.fertre, jyri.sarha, tomi.valkeinen,
hansg, dmitry.osipenko, gurchetansingh, olvaffe, michal.simek,
harry.wentland, siqueira, sunpeng.li, linux,
Dharma Balasubiramani, Ludovic Desroches, Manikandan Muralidharan,
alexandre.belloni, claudiu.beznea, nicolas.ferre, alim.akhtar,
inki.dae, krzk, kyungmin.park, linux-samsung-soc, sw0312.kim,
p.zabel, angelogioacchino.delregno, chunkuang.hu, matthias.bgg,
Lyude Paul, dakr, nouveau, geert+renesas, kieran.bingham+renesas,
laurent.pinchart+renesas, linux-renesas-soc, magnus.damm,
tomi.valkeinen+renesas, Biju Das, linux-sunxi, samuel, wens,
Zack Rusin, bcm-kernel-feedback-list
Hi Maxime,
nice series. I looked through all the patches. For those patches where
I did not respond specifically, you can add
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Best regards
Thomas
Am 08.09.26 um 16:46 schrieb Maxime Ripard:
> This is a follow-up to the bridge reset removal series, and part of a
> larger effort to remove the reset hook from all KMS objects.
>
> The plane reset hook is overloaded: it is called both at probe time
> to create the initial software state and during suspend/resume to
> reset hardware and software state. These two roles have different
> requirements, and the reset hook is not fallible, making error
> handling difficult for the initial state allocation path.
>
> While reset has the semantics to reset both the software and hardware
> state, the vast majority of implementations and all the helpers only
> reset the software state, making them equivalent to
> atomic_create_state in practice. The atomic_create_state hook makes
> this explicit: it only allocates and initializes a pristine state
> without any side effect, and returns the state pointer or an ERR_PTR
> on failure.
>
> This series first adds the necessary infrastructure in the simple-kms
> and GEM atomic helpers, then converts all 51 plane drivers tree-wide
> from the reset hook to atomic_create_state. The conversions were done
> using a combination of Coccinelle semantic patches and manual
> adjustments. Once all drivers are converted, the old helpers and the
> reset hook itself are removed from struct drm_plane_funcs.
>
> Signed-off-by: Maxime Ripard <mripard@kernel.org>
> ---
> Changes in v4:
> - Fix a NULL pointer dereference with vkms
> - Rebase on drm-misc-next-2026-09-03
> - Link to v3: https://lore.kernel.org/r/20260831-drm-no-more-plane-reset-v3-0-1877c7aa57b3@kernel.org
>
> Changes in v3:
> - Drop leftover state destruction in sun4i
> - Rebase on current drm-misc-next
> - Link to v2: https://lore.kernel.org/r/20260814-drm-no-more-plane-reset-v2-0-82d2963dd134@kernel.org
>
> Changes in v2:
> - Rebase on latest drm-misc-next tag
> - Fix sashiko reviews
> - Fix atmel-hlcdc breakage
> - Link to v1: https://lore.kernel.org/r/20260709-drm-no-more-plane-reset-v1-0-302d986fe5f0@kernel.org
>
> ---
> Maxime Ripard (41):
> drm/simple-kms: Remove unused reset_plane hook
> drm/vkms: Move frame_info into vkms_plane_state
> drm/vkms: Convert to atomic_create_state
> drm/gem-atomic-helper: Remove __drm_gem_reset_shadow_plane()
> drm/amdgpu: Convert to atomic_create_state
> drm/fsl-dcu: Convert to atomic_create_state
> drm/hisilicon/kirin: Convert to atomic_create_state
> drm/imx/dc: Convert to atomic_create_state
> drm/kmb: Convert to atomic_create_state
> drm/logicvc: Convert to atomic_create_state
> drm/loongson: Convert to atomic_create_state
> drm/lcdif: Convert to atomic_create_state
> drm/mxsfb: Convert to atomic_create_state
> drm/qxl: Convert to atomic_create_state
> drm/rockchip: Convert to atomic_create_state
> drm/sprd: Convert to atomic_create_state
> drm/sti: Convert to atomic_create_state
> drm/stm: Convert to atomic_create_state
> drm/tests: kunit: Convert to atomic_create_state
> drm/tilcdc: Convert to atomic_create_state
> drm/vboxvideo: Convert to atomic_create_state
> drm/verisilicon: Convert to atomic_create_state
> drm/virtio: Convert to atomic_create_state
> drm/xlnx: Convert to atomic_create_state
> drm/atomic-state-helper: Remove drm_atomic_helper_plane_reset()
> drm/amdgpu_dm: Convert to atomic_create_state
> drm/armada: Convert to atomic_create_state
> drm/atmel-hlcdc: Drop spurious csc_init call from reset
> drm/atmel-hlcdc: Convert to atomic_create_state
> drm/exynos: Convert to atomic_create_state
> drm/imx/ipuv3: Convert to atomic_create_state
> drm/mediatek: Convert to atomic_create_state
> drm/nouveau: Convert to atomic_create_state
> drm/omap: Convert to atomic_create_state
> drm/rcar-du: Convert to atomic_create_state
> drm/rz-du: Convert to atomic_create_state
> drm/shmobile: Convert to atomic_create_state
> drm/sun4i: layer: Convert to atomic_create_state
> drm/vmwgfx: Convert to atomic_create_state
> drm/atomic-state-helper: Remove __drm_atomic_helper_plane_reset()
> drm/plane: Remove reset
>
> drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c | 2 +-
> .../drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c | 28 ++++++++-----
> .../drm/amd/display/amdgpu_dm/amdgpu_dm_plane.h | 2 +-
> .../display/amdgpu_dm/tests/amdgpu_dm_plane_test.c | 30 +++++---------
> drivers/gpu/drm/armada/armada_overlay.c | 39 ++++++++----------
> drivers/gpu/drm/armada/armada_plane.c | 15 +++----
> drivers/gpu/drm/armada/armada_plane.h | 2 +-
> drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 33 +++++++--------
> drivers/gpu/drm/drm_atomic_state_helper.c | 41 ------------------
> drivers/gpu/drm/drm_gem_atomic_helper.c | 20 ---------
> drivers/gpu/drm/drm_mode_config.c | 4 +-
> drivers/gpu/drm/exynos/exynos_drm_plane.c | 22 ++++------
> drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c | 2 +-
> drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 2 +-
> drivers/gpu/drm/imx/dc/dc-plane.c | 2 +-
> drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c | 19 ++++-----
> drivers/gpu/drm/kmb/kmb_plane.c | 2 +-
> drivers/gpu/drm/logicvc/logicvc_layer.c | 2 +-
> drivers/gpu/drm/loongson/lsdc_plane.c | 2 +-
> drivers/gpu/drm/mediatek/mtk_plane.c | 22 ++++------
> drivers/gpu/drm/mxsfb/lcdif_kms.c | 2 +-
> drivers/gpu/drm/mxsfb/mxsfb_kms.c | 2 +-
> drivers/gpu/drm/nouveau/dispnv50/wndw.c | 15 ++++---
> drivers/gpu/drm/omapdrm/omap_plane.c | 13 +++---
> drivers/gpu/drm/qxl/qxl_display.c | 4 +-
> drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c | 15 +++----
> drivers/gpu/drm/renesas/rcar-du/rcar_du_vsp.c | 15 +++----
> drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c | 15 +++----
> drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c | 15 +++----
> drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 2 +-
> drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 2 +-
> drivers/gpu/drm/sprd/sprd_dpu.c | 2 +-
> drivers/gpu/drm/sti/sti_cursor.c | 2 +-
> drivers/gpu/drm/sti/sti_gdp.c | 2 +-
> drivers/gpu/drm/sti/sti_hqvdp.c | 2 +-
> drivers/gpu/drm/stm/ltdc.c | 2 +-
> drivers/gpu/drm/sun4i/sun4i_layer.c | 21 ++++------
> drivers/gpu/drm/tests/drm_kunit_helpers.c | 2 +-
> drivers/gpu/drm/tilcdc/tilcdc_plane.c | 2 +-
> drivers/gpu/drm/vboxvideo/vbox_mode.c | 2 +-
> drivers/gpu/drm/verisilicon/vs_cursor_plane.c | 2 +-
> drivers/gpu/drm/verisilicon/vs_plane.c | 14 +++----
> drivers/gpu/drm/verisilicon/vs_plane.h | 2 +-
> drivers/gpu/drm/verisilicon/vs_primary_plane.c | 2 +-
> drivers/gpu/drm/virtio/virtgpu_plane.c | 2 +-
> drivers/gpu/drm/vkms/vkms_composer.c | 30 +++++++-------
> drivers/gpu/drm/vkms/vkms_drv.h | 2 +-
> drivers/gpu/drm/vkms/vkms_formats.c | 48 +++++++++++-----------
> drivers/gpu/drm/vkms/vkms_plane.c | 36 +++++-----------
> drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 17 ++++----
> drivers/gpu/drm/vmwgfx/vmwgfx_kms.h | 2 +-
> drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c | 4 +-
> drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c | 4 +-
> drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 4 +-
> drivers/gpu/drm/xlnx/zynqmp_kms.c | 2 +-
> include/drm/drm_atomic_state_helper.h | 3 --
> include/drm/drm_gem_atomic_helper.h | 2 -
> include/drm/drm_plane.h | 12 ------
> include/drm/drm_simple_kms_helper.h | 1 -
> 59 files changed, 236 insertions(+), 381 deletions(-)
> ---
> base-commit: 17c6b88e85ffe5de5720004ae8c2176d52944aca
> change-id: 20260629-drm-no-more-plane-reset-04950f42e07f
>
> Best regards,
--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstr. 146, 90461 Nürnberg, Germany, www.suse.com
GF: Jochen Jaser, Andrew McDonald, (HRB 36809, AG Nürnberg)
^ permalink raw reply [flat|nested] 54+ messages in thread
* Re: [PATCH v4 35/41] drm/rcar-du: Convert to atomic_create_state
2026-09-08 14:47 ` [PATCH v4 35/41] drm/rcar-du: " Maxime Ripard
2026-09-10 6:57 ` Thomas Zimmermann
@ 2026-09-10 12:00 ` Laurent Pinchart
1 sibling, 0 replies; 54+ messages in thread
From: Laurent Pinchart @ 2026-09-10 12:00 UTC (permalink / raw)
To: Maxime Ripard
Cc: Maarten Lankhorst, Thomas Zimmermann, David Airlie, Simona Vetter,
dri-devel, geert+renesas, kieran.bingham+renesas,
linux-renesas-soc, magnus.damm, tomi.valkeinen+renesas
Hi Maxime,
Thank you for the patch.
On Tue, Sep 08, 2026 at 04:47:06PM +0200, Maxime Ripard wrote:
> The plane reset implementation creates a custom state
> subclass, but only initializes a pristine state without resetting any
> hardware. This is equivalent to what atomic_create_state expects.
> Convert to it.
>
> The conversion was done using the following Coccinelle semantic patch:
>
> @@
> identifier funcs;
> symbol drm_atomic_helper_plane_reset;
> symbol drm_atomic_helper_plane_create_state;
> @@
>
> struct drm_plane_funcs funcs = {
> ...,
> - .reset = drm_atomic_helper_plane_reset,
> + .atomic_create_state = drm_atomic_helper_plane_create_state,
> ...,
> };
>
> @match_struct_reset@
> identifier funcs, reset_func;
> @@
> struct drm_plane_funcs funcs = {
> ...,
> .reset = reset_func,
> ...,
> };
>
> @reset_uses_helpers depends on match_struct_reset@
> identifier match_struct_reset.reset_func;
> @@
>
> void reset_func(...)
> {
> <+...
> (
> __drm_atomic_helper_plane_reset(...);
> |
> __drm_gem_reset_shadow_plane(...);
> )
> ...+>
> }
>
> @match_struct_destroy@
> identifier funcs, destroy_func;
> @@
> struct drm_plane_funcs funcs = {
> ...,
> .atomic_destroy_state = destroy_func,
> ...,
> };
>
> @script:python renamed_func@
> old_name << match_struct_reset.reset_func;
> new_name;
> @@
> if old_name.endswith("_reset"):
> coccinelle.new_name = old_name.replace("_reset", "_create_state")
> else:
> coccinelle.new_name = old_name
>
> @update_struct depends on match_struct_reset && reset_uses_helpers@
> identifier match_struct_reset.funcs, match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> @@
> struct drm_plane_funcs funcs = {
> ...,
> - .reset = reset_func,
> + .atomic_create_state = new_name,
> ...,
> };
>
> @drop_destroy depends on update_struct && match_struct_destroy@
> identifier match_struct_reset.reset_func;
> identifier match_struct_destroy.destroy_func;
> identifier container_func;
> identifier P;
> symbol drm_atomic_helper_plane_destroy_state;
> symbol __drm_atomic_helper_plane_destroy_state;
> @@
>
> void reset_func(struct drm_plane *P)
> {
> ...
> (
> - if (P->state) {
> - <+...
> (
> - drm_atomic_helper_plane_destroy_state(P, P->state);
> |
> - __drm_atomic_helper_plane_destroy_state(P->state);
> |
> - P->funcs->atomic_destroy_state(P, P->state);
> |
> - destroy_func(P, P->state);
> )
> - ...+>
> - }
> |
> - drm_WARN_ON_ONCE(P->dev, P->state);
> |
> - WARN_ON(P->state);
> )
> ...
> (
> - kfree(P->state);
> |
> - kfree(container_func(P->state));
> |
> // kfree is optional
> )
> (
> - P->state = NULL;
> |
> // plane->state clearing is optional
> )
> ...
> }
>
> @drop_destroy_mtk depends on update_struct@
> identifier P;
> symbol __drm_atomic_helper_plane_destroy_state;
> symbol to_mtk_plane_state;
> @@
>
> void mtk_plane_reset(struct drm_plane *P)
> {
> ...
> - if (P->state) {
> - __drm_atomic_helper_plane_destroy_state(P->state);
> - ...
> - } else {
> ...
> - }
> ...
> }
>
> @transform_nv50_wndw depends on update_struct@
> identifier S;
> @@
>
> void nv50_wndw_reset(...)
> {
> ...
> - if (WARN_ON(!(S = kzalloc_obj(*S))))
> + S = kzalloc_obj(*S);
> + if (WARN_ON(!S))
> return;
> ...
> }
>
> @transform_kzalloc depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier P, S;
> statement ST;
> statement list STL;
> @@
>
> void reset_func(struct drm_plane *P)
> {
> <...
> S = kzalloc_obj(*S);
> (
> - if (S)
> - {
> - STL
> - }
> + if (!S) return;
> +
> + STL
> |
> - if (S) ST
> + if (!S) return;
> +
> + ST
> )
> ...>
> }
>
> @transform_body depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> identifier S, P;
> expression PS;
> @@
> - void reset_func(struct drm_plane *P)
> + struct drm_plane_state *new_name(struct drm_plane *P)
> {
> ...
> S = kzalloc_obj(*S);
> ...
> (
> if (!S) {
> ...
> - return;
> + return ERR_PTR(-ENOMEM);
> }
> |
> if (WARN_ON(!S)) {
> ...
> - return;
> + return ERR_PTR(-ENOMEM);
> }
> |
> if (S == NULL) {
> ...
> - return;
> + return ERR_PTR(-ENOMEM);
> }
> )
> ...
> (
> - __drm_atomic_helper_plane_reset(P, PS);
> + __drm_atomic_helper_plane_state_init(PS, P);
> |
> - __drm_gem_reset_shadow_plane(P, PS);
> + __drm_gem_shadow_plane_state_init(P, PS);
> )
> ...
> }
>
> @update_early_return depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> identifier P;
> expression PS;
> @@
> struct drm_plane_state *new_name(struct drm_plane *P)
> {
> <+...
> - return;
> + return ERR_PTR(-EINVAL);
> ...+>
> }
>
> @update_return_plane depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> identifier P;
> expression PS;
> @@
> struct drm_plane_state *new_name(struct drm_plane *P)
> {
> ...
> __drm_atomic_helper_plane_state_init(PS, P);
> ...
> +
> + return PS;
> }
>
> @update_return_shadow depends on update_struct@
> identifier renamed_func.new_name;
> identifier P;
> expression PS;
> @@
> struct drm_plane_state *new_name(struct drm_plane *P)
> {
> ...
> __drm_gem_shadow_plane_state_init(P, PS);
> ...
> +
> + return &PS->base;
> }
>
> Signed-off-by: Maxime Ripard <mripard@kernel.org>
An impressive semantic patch.
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
> ---
> Cc: geert+renesas@glider.be
> Cc: kieran.bingham+renesas@ideasonboard.com
> Cc: laurent.pinchart+renesas@ideasonboard.com
> Cc: linux-renesas-soc@vger.kernel.org
> Cc: magnus.damm@gmail.com
> Cc: tomi.valkeinen+renesas@ideasonboard.com
> ---
> drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c | 15 ++++++---------
> drivers/gpu/drm/renesas/rcar-du/rcar_du_vsp.c | 15 ++++++---------
> 2 files changed, 12 insertions(+), 18 deletions(-)
>
> diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
> index 8870766b9e54..da2dff9bb317 100644
> --- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
> +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
> @@ -710,28 +710,25 @@ static void rcar_du_plane_atomic_destroy_state(struct drm_plane *plane,
> {
> __drm_atomic_helper_plane_destroy_state(state);
> kfree(to_rcar_plane_state(state));
> }
>
> -static void rcar_du_plane_reset(struct drm_plane *plane)
> +static struct drm_plane_state *rcar_du_plane_create_state(struct drm_plane *plane)
> {
> struct rcar_du_plane_state *state;
>
> - if (plane->state) {
> - rcar_du_plane_atomic_destroy_state(plane, plane->state);
> - plane->state = NULL;
> - }
> -
> state = kzalloc_obj(*state);
> if (state == NULL)
> - return;
> + return ERR_PTR(-ENOMEM);
>
> - __drm_atomic_helper_plane_reset(plane, &state->state);
> + __drm_atomic_helper_plane_state_init(&state->state, plane);
>
> state->hwindex = -1;
> state->source = RCAR_DU_PLANE_MEMORY;
> state->colorkey = RCAR_DU_COLORKEY_NONE;
> +
> + return &state->state;
> }
>
> static int rcar_du_plane_atomic_set_property(struct drm_plane *plane,
> struct drm_plane_state *state,
> struct drm_property *property,
> @@ -765,11 +762,11 @@ static int rcar_du_plane_atomic_get_property(struct drm_plane *plane,
> }
>
> static const struct drm_plane_funcs rcar_du_plane_funcs = {
> .update_plane = drm_atomic_helper_update_plane,
> .disable_plane = drm_atomic_helper_disable_plane,
> - .reset = rcar_du_plane_reset,
> + .atomic_create_state = rcar_du_plane_create_state,
> .destroy = drm_plane_cleanup,
> .atomic_duplicate_state = rcar_du_plane_atomic_duplicate_state,
> .atomic_destroy_state = rcar_du_plane_atomic_destroy_state,
> .atomic_set_property = rcar_du_plane_atomic_set_property,
> .atomic_get_property = rcar_du_plane_atomic_get_property,
> diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_vsp.c b/drivers/gpu/drm/renesas/rcar-du/rcar_du_vsp.c
> index ae9f381b03c8..4293e792afdb 100644
> --- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_vsp.c
> +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_vsp.c
> @@ -419,30 +419,27 @@ static void rcar_du_vsp_plane_atomic_destroy_state(struct drm_plane *plane,
> {
> __drm_atomic_helper_plane_destroy_state(state);
> kfree(to_rcar_vsp_plane_state(state));
> }
>
> -static void rcar_du_vsp_plane_reset(struct drm_plane *plane)
> +static struct drm_plane_state *rcar_du_vsp_plane_create_state(struct drm_plane *plane)
> {
> struct rcar_du_vsp_plane_state *state;
>
> - if (plane->state) {
> - rcar_du_vsp_plane_atomic_destroy_state(plane, plane->state);
> - plane->state = NULL;
> - }
> -
> state = kzalloc_obj(*state);
> if (state == NULL)
> - return;
> + return ERR_PTR(-ENOMEM);
>
> - __drm_atomic_helper_plane_reset(plane, &state->state);
> + __drm_atomic_helper_plane_state_init(&state->state, plane);
> +
> + return &state->state;
> }
>
> static const struct drm_plane_funcs rcar_du_vsp_plane_funcs = {
> .update_plane = drm_atomic_helper_update_plane,
> .disable_plane = drm_atomic_helper_disable_plane,
> - .reset = rcar_du_vsp_plane_reset,
> + .atomic_create_state = rcar_du_vsp_plane_create_state,
> .destroy = drm_plane_cleanup,
> .atomic_duplicate_state = rcar_du_vsp_plane_atomic_duplicate_state,
> .atomic_destroy_state = rcar_du_vsp_plane_atomic_destroy_state,
> };
>
--
Regards,
Laurent Pinchart
^ permalink raw reply [flat|nested] 54+ messages in thread
* Re: [PATCH v4 26/41] drm/amdgpu_dm: Convert to atomic_create_state
2026-09-08 14:46 ` [PATCH v4 26/41] drm/amdgpu_dm: Convert to atomic_create_state Maxime Ripard
@ 2026-09-10 16:31 ` Leo Li
0 siblings, 0 replies; 54+ messages in thread
From: Leo Li @ 2026-09-10 16:31 UTC (permalink / raw)
To: Maxime Ripard, Maarten Lankhorst, Thomas Zimmermann, David Airlie,
Simona Vetter
Cc: dri-devel, alexander.deucher, amd-gfx, christian.koenig,
harry.wentland, siqueira
On 2026-09-08 10:46, Maxime Ripard wrote:
> The plane reset implementation creates a custom state
> subclass, but only initializes a pristine state without resetting any
> hardware. This is equivalent to what atomic_create_state expects.
> Convert to it.
>
> The conversion was done using the following Coccinelle semantic patch:
>
> @@
> identifier funcs;
> symbol drm_atomic_helper_plane_reset;
> symbol drm_atomic_helper_plane_create_state;
> @@
>
> struct drm_plane_funcs funcs = {
> ...,
> - .reset = drm_atomic_helper_plane_reset,
> + .atomic_create_state = drm_atomic_helper_plane_create_state,
> ...,
> };
>
> @match_struct_reset@
> identifier funcs, reset_func;
> @@
> struct drm_plane_funcs funcs = {
> ...,
> .reset = reset_func,
> ...,
> };
>
> @reset_uses_helpers depends on match_struct_reset@
> identifier match_struct_reset.reset_func;
> @@
>
> void reset_func(...)
> {
> <+...
> (
> __drm_atomic_helper_plane_reset(...);
> |
> __drm_gem_reset_shadow_plane(...);
> )
> ...+>
> }
>
> @match_struct_destroy@
> identifier funcs, destroy_func;
> @@
> struct drm_plane_funcs funcs = {
> ...,
> .atomic_destroy_state = destroy_func,
> ...,
> };
>
> @script:python renamed_func@
> old_name << match_struct_reset.reset_func;
> new_name;
> @@
> if old_name.endswith("_reset"):
> coccinelle.new_name = old_name.replace("_reset", "_create_state")
> else:
> coccinelle.new_name = old_name
>
> @update_struct depends on match_struct_reset && reset_uses_helpers@
> identifier match_struct_reset.funcs, match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> @@
> struct drm_plane_funcs funcs = {
> ...,
> - .reset = reset_func,
> + .atomic_create_state = new_name,
> ...,
> };
>
> @drop_destroy depends on update_struct && match_struct_destroy@
> identifier match_struct_reset.reset_func;
> identifier match_struct_destroy.destroy_func;
> identifier container_func;
> identifier P;
> symbol drm_atomic_helper_plane_destroy_state;
> symbol __drm_atomic_helper_plane_destroy_state;
> @@
>
> void reset_func(struct drm_plane *P)
> {
> ...
> (
> - if (P->state) {
> - <+...
> (
> - drm_atomic_helper_plane_destroy_state(P, P->state);
> |
> - __drm_atomic_helper_plane_destroy_state(P->state);
> |
> - P->funcs->atomic_destroy_state(P, P->state);
> |
> - destroy_func(P, P->state);
> )
> - ...+>
> - }
> |
> - drm_WARN_ON_ONCE(P->dev, P->state);
> |
> - WARN_ON(P->state);
> )
> ...
> (
> - kfree(P->state);
> |
> - kfree(container_func(P->state));
> |
> // kfree is optional
> )
> (
> - P->state = NULL;
> |
> // plane->state clearing is optional
> )
> ...
> }
>
> @drop_destroy_mtk depends on update_struct@
> identifier P;
> symbol __drm_atomic_helper_plane_destroy_state;
> symbol to_mtk_plane_state;
> @@
>
> void mtk_plane_reset(struct drm_plane *P)
> {
> ...
> - if (P->state) {
> - __drm_atomic_helper_plane_destroy_state(P->state);
> - ...
> - } else {
> ...
> - }
> ...
> }
>
> @transform_nv50_wndw depends on update_struct@
> identifier S;
> @@
>
> void nv50_wndw_reset(...)
> {
> ...
> - if (WARN_ON(!(S = kzalloc_obj(*S))))
> + S = kzalloc_obj(*S);
> + if (WARN_ON(!S))
> return;
> ...
> }
>
> @transform_kzalloc depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier P, S;
> statement ST;
> statement list STL;
> @@
>
> void reset_func(struct drm_plane *P)
> {
> <...
> S = kzalloc_obj(*S);
> (
> - if (S)
> - {
> - STL
> - }
> + if (!S) return;
> +
> + STL
> |
> - if (S) ST
> + if (!S) return;
> +
> + ST
> )
> ...>
> }
>
> @transform_body depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> identifier S, P;
> expression PS;
> @@
> - void reset_func(struct drm_plane *P)
> + struct drm_plane_state *new_name(struct drm_plane *P)
> {
> ...
> S = kzalloc_obj(*S);
> ...
> (
> if (!S) {
> ...
> - return;
> + return ERR_PTR(-ENOMEM);
> }
> |
> if (WARN_ON(!S)) {
> ...
> - return;
> + return ERR_PTR(-ENOMEM);
> }
> |
> if (S == NULL) {
> ...
> - return;
> + return ERR_PTR(-ENOMEM);
> }
> )
> ...
> (
> - __drm_atomic_helper_plane_reset(P, PS);
> + __drm_atomic_helper_plane_state_init(PS, P);
> |
> - __drm_gem_reset_shadow_plane(P, PS);
> + __drm_gem_shadow_plane_state_init(P, PS);
> )
> ...
> }
>
> @update_early_return depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> identifier P;
> expression PS;
> @@
> struct drm_plane_state *new_name(struct drm_plane *P)
> {
> <+...
> - return;
> + return ERR_PTR(-EINVAL);
> ...+>
> }
>
> @update_return_plane depends on update_struct@
> identifier match_struct_reset.reset_func;
> identifier renamed_func.new_name;
> identifier P;
> expression PS;
> @@
> struct drm_plane_state *new_name(struct drm_plane *P)
> {
> ...
> __drm_atomic_helper_plane_state_init(PS, P);
> ...
> +
> + return PS;
> }
>
> @update_return_shadow depends on update_struct@
> identifier renamed_func.new_name;
> identifier P;
> expression PS;
> @@
> struct drm_plane_state *new_name(struct drm_plane *P)
> {
> ...
> __drm_gem_shadow_plane_state_init(P, PS);
> ...
> +
> + return &PS->base;
> }
>
> Signed-off-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Leo Li <sunpeng.li@amd.com>
Thanks!
Leo
> ---
> Cc: alexander.deucher@amd.com
> Cc: amd-gfx@lists.freedesktop.org
> Cc: christian.koenig@amd.com
> Cc: harry.wentland@amd.com
> Cc: siqueira@igalia.com
> Cc: sunpeng.li@amd.com
> ---
> .../drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c | 28 ++++++++++++--------
> .../drm/amd/display/amdgpu_dm/amdgpu_dm_plane.h | 2 +-
> .../display/amdgpu_dm/tests/amdgpu_dm_plane_test.c | 30 ++++++++--------------
> 3 files changed, 29 insertions(+), 31 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
> index 824ef3ce5de0..f9655f534d3b 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
> @@ -1786,28 +1786,27 @@ static const struct drm_plane_helper_funcs dm_primary_plane_helper_funcs = {
> .atomic_async_update = amdgpu_dm_plane_atomic_async_update,
> .get_scanout_buffer = amdgpu_display_get_scanout_buffer,
> .panic_flush = amdgpu_dm_plane_panic_flush,
> };
>
> -STATIC_IFN_KUNIT void amdgpu_dm_plane_drm_plane_reset(struct drm_plane *plane)
> +STATIC_IFN_KUNIT struct drm_plane_state *amdgpu_dm_plane_drm_plane_create_state(struct drm_plane *plane)
> {
> struct dm_plane_state *amdgpu_state;
>
> amdgpu_state = kzalloc_obj(*amdgpu_state);
> if (!amdgpu_state)
> - return;
> + return ERR_PTR(-ENOMEM);
>
> - if (plane->state)
> - plane->funcs->atomic_destroy_state(plane, plane->state);
> -
> - __drm_atomic_helper_plane_reset(plane, &amdgpu_state->base);
> + __drm_atomic_helper_plane_state_init(&amdgpu_state->base, plane);
> amdgpu_state->degamma_tf = AMDGPU_TRANSFER_FUNCTION_DEFAULT;
> amdgpu_state->hdr_mult = AMDGPU_HDR_MULT_DEFAULT;
> amdgpu_state->shaper_tf = AMDGPU_TRANSFER_FUNCTION_DEFAULT;
> amdgpu_state->blend_tf = AMDGPU_TRANSFER_FUNCTION_DEFAULT;
> +
> + return &amdgpu_state->base;
> }
> -EXPORT_IF_KUNIT(amdgpu_dm_plane_drm_plane_reset);
> +EXPORT_IF_KUNIT(amdgpu_dm_plane_drm_plane_create_state);
>
> STATIC_IFN_KUNIT struct drm_plane_state *
> amdgpu_dm_plane_drm_plane_duplicate_state(struct drm_plane *plane)
> {
> struct dm_plane_state *dm_plane_state, *old_dm_plane_state;
> @@ -2166,11 +2165,11 @@ dm_plane_init_colorops(struct drm_plane *plane)
>
> static const struct drm_plane_funcs dm_plane_funcs = {
> .update_plane = drm_atomic_helper_update_plane,
> .disable_plane = drm_atomic_helper_disable_plane,
> .destroy = drm_plane_helper_destroy,
> - .reset = amdgpu_dm_plane_drm_plane_reset,
> + .atomic_create_state = amdgpu_dm_plane_drm_plane_create_state,
> .atomic_duplicate_state = amdgpu_dm_plane_drm_plane_duplicate_state,
> .atomic_destroy_state = amdgpu_dm_plane_drm_plane_destroy_state,
> .format_mod_supported = amdgpu_dm_plane_format_mod_supported,
> .format_mod_supported_async = amdgpu_dm_plane_format_mod_supported,
> #ifdef AMD_PRIVATE_COLOR
> @@ -2276,13 +2275,20 @@ int amdgpu_dm_plane_init(struct amdgpu_display_manager *dm,
> res = dm_plane_init_colorops(plane);
> if (res)
> return res;
> #endif
>
> - /* Create (reset) the plane state */
> - if (plane->funcs->reset)
> - plane->funcs->reset(plane);
> + /* Create the plane state */
> + if (plane->funcs->atomic_create_state) {
> + struct drm_plane_state *plane_state;
> +
> + plane_state = plane->funcs->atomic_create_state(plane);
> + if (IS_ERR(plane_state))
> + return PTR_ERR(plane_state);
> +
> + plane->state = plane_state;
> + }
>
> return 0;
> }
>
> bool amdgpu_dm_plane_is_video_format(uint32_t format)
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.h
> index 092ade738ce9..6aaea290206d 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.h
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.h
> @@ -115,11 +115,11 @@ void amdgpu_dm_plane_get_min_max_dc_plane_scaling(struct drm_device *dev,
> int amdgpu_dm_plane_atomic_async_check(struct drm_plane *plane,
> struct drm_atomic_commit *state, bool flip);
> int amdgpu_dm_plane_atomic_check(struct drm_plane *plane,
> struct drm_atomic_commit *state);
> void amdgpu_dm_plane_panic_flush(struct drm_plane *plane);
> -void amdgpu_dm_plane_drm_plane_reset(struct drm_plane *plane);
> +struct drm_plane_state *amdgpu_dm_plane_drm_plane_create_state(struct drm_plane *plane);
> struct drm_plane_state *amdgpu_dm_plane_drm_plane_duplicate_state(struct drm_plane *plane);
> void amdgpu_dm_plane_drm_plane_destroy_state(struct drm_plane *plane,
> struct drm_plane_state *state);
> void amdgpu_dm_plane_add_modifier_dedup(uint64_t **mods, uint64_t *size,
> uint64_t *cap, uint64_t mod);
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_plane_test.c b/drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_plane_test.c
> index ba97092c7bb8..ab425ee14f30 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_plane_test.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_plane_test.c
> @@ -2922,40 +2922,32 @@ static void dm_test_panic_flush_no_dc_state(struct kunit *test)
> static const struct drm_plane_funcs dm_test_plane_reset_funcs = {
> .atomic_destroy_state = amdgpu_dm_plane_drm_plane_destroy_state,
> };
>
> /**
> - * dm_test_plane_reset_initializes_state() - Verify reset installs default state.
> + * dm_test_plane_create_state_initializes_state() - Verify create_state allocates default state.
> * @test: KUnit test context.
> *
> - * Verify amdgpu_dm_plane_drm_plane_reset() destroys the existing plane state,
> - * allocates a fresh dm_plane_state, and initializes the AMD-specific transfer
> - * function and HDR multiplier defaults.
> + * Verify amdgpu_dm_plane_drm_plane_create_state() allocates a fresh
> + * dm_plane_state, and initializes the AMD-specific transfer function and HDR
> + * multiplier defaults.
> */
> -static void dm_test_plane_reset_initializes_state(struct kunit *test)
> +static void dm_test_plane_create_state_initializes_state(struct kunit *test)
> {
> - struct dm_plane_state *old_state;
> + struct drm_plane_state *plane_state;
> struct dm_plane_state *new_state;
> struct drm_plane *plane;
>
> plane = kunit_kzalloc(test, sizeof(*plane), GFP_KERNEL);
> KUNIT_ASSERT_NOT_NULL(test, plane);
>
> - /*
> - * Provide an existing state plus a funcs table so reset exercises the
> - * destroy-existing-state path. The destroy hook frees this state, so it
> - * must be a plain (non-KUnit-managed) allocation.
> - */
> - old_state = kzalloc(sizeof(*old_state), GFP_KERNEL);
> - KUNIT_ASSERT_NOT_NULL(test, old_state);
> plane->funcs = &dm_test_plane_reset_funcs;
> - plane->state = &old_state->base;
>
> - amdgpu_dm_plane_drm_plane_reset(plane);
> + plane_state = amdgpu_dm_plane_drm_plane_create_state(plane);
> + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, plane_state);
>
> - KUNIT_ASSERT_NOT_NULL(test, plane->state);
> - new_state = to_dm_plane_state(plane->state);
> + new_state = to_dm_plane_state(plane_state);
> KUNIT_EXPECT_EQ(test, new_state->degamma_tf, AMDGPU_TRANSFER_FUNCTION_DEFAULT);
> KUNIT_EXPECT_EQ(test, new_state->hdr_mult, AMDGPU_HDR_MULT_DEFAULT);
> KUNIT_EXPECT_EQ(test, new_state->shaper_tf, AMDGPU_TRANSFER_FUNCTION_DEFAULT);
> KUNIT_EXPECT_EQ(test, new_state->blend_tf, AMDGPU_TRANSFER_FUNCTION_DEFAULT);
>
> @@ -3096,12 +3088,12 @@ static struct kunit_case amdgpu_dm_plane_test_cases[] = {
> KUNIT_CASE(dm_test_atomic_check_helper_failure),
> KUNIT_CASE(dm_test_atomic_check_color_pipeline_conflict),
> KUNIT_CASE(dm_test_atomic_check_scaling_failure),
> /* amdgpu_dm_plane_panic_flush() */
> KUNIT_CASE(dm_test_panic_flush_no_dc_state),
> - /* amdgpu_dm_plane_drm_plane_reset() */
> - KUNIT_CASE(dm_test_plane_reset_initializes_state),
> + /* amdgpu_dm_plane_drm_plane_create_state() */
> + KUNIT_CASE(dm_test_plane_create_state_initializes_state),
> /* amdgpu_dm_plane_drm_plane_duplicate_state() */
> KUNIT_CASE(dm_test_plane_duplicate_state_copies_fields),
> /* amdgpu_dm_plane_drm_plane_destroy_state() */
> KUNIT_CASE(dm_test_plane_destroy_state_minimal),
> /* amdgpu_dm_plane_add_modifier() */
>
^ permalink raw reply [flat|nested] 54+ messages in thread
end of thread, other threads:[~2026-09-10 16:32 UTC | newest]
Thread overview: 54+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-09-08 14:46 [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 01/41] drm/simple-kms: Remove unused reset_plane hook Maxime Ripard
2026-09-10 6:30 ` Thomas Zimmermann
2026-09-08 14:46 ` [PATCH v4 02/41] drm/vkms: Move frame_info into vkms_plane_state Maxime Ripard
2026-09-10 6:33 ` Thomas Zimmermann
2026-09-08 14:46 ` [PATCH v4 03/41] drm/vkms: Convert to atomic_create_state Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 04/41] drm/gem-atomic-helper: Remove __drm_gem_reset_shadow_plane() Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 05/41] drm/amdgpu: Convert to atomic_create_state Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 06/41] drm/fsl-dcu: " Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 07/41] drm/hisilicon/kirin: " Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 08/41] drm/imx/dc: " Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 09/41] drm/kmb: " Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 10/41] drm/logicvc: " Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 11/41] drm/loongson: " Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 12/41] drm/lcdif: " Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 13/41] drm/mxsfb: " Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 14/41] drm/qxl: " Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 15/41] drm/rockchip: " Maxime Ripard
2026-09-09 10:00 ` Heiko Stübner
2026-09-08 14:46 ` [PATCH v4 16/41] drm/sprd: " Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 17/41] drm/sti: " Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 18/41] drm/stm: " Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 19/41] drm/tests: kunit: " Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 20/41] drm/tilcdc: " Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 21/41] drm/vboxvideo: " Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 22/41] drm/verisilicon: " Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 23/41] drm/virtio: " Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 24/41] drm/xlnx: " Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 25/41] drm/atomic-state-helper: Remove drm_atomic_helper_plane_reset() Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 26/41] drm/amdgpu_dm: Convert to atomic_create_state Maxime Ripard
2026-09-10 16:31 ` Leo Li
2026-09-08 14:46 ` [PATCH v4 27/41] drm/armada: " Maxime Ripard
2026-09-08 14:46 ` [PATCH v4 28/41] drm/atmel-hlcdc: Drop spurious csc_init call from reset Maxime Ripard
2026-09-10 6:48 ` Thomas Zimmermann
2026-09-08 14:47 ` [PATCH v4 29/41] drm/atmel-hlcdc: Convert to atomic_create_state Maxime Ripard
2026-09-08 14:47 ` [PATCH v4 30/41] drm/exynos: " Maxime Ripard
2026-09-08 14:47 ` [PATCH v4 31/41] drm/imx/ipuv3: " Maxime Ripard
2026-09-08 14:47 ` [PATCH v4 32/41] drm/mediatek: " Maxime Ripard
2026-09-10 6:54 ` Thomas Zimmermann
2026-09-08 14:47 ` [PATCH v4 33/41] drm/nouveau: " Maxime Ripard
2026-09-10 6:55 ` Thomas Zimmermann
2026-09-08 14:47 ` [PATCH v4 34/41] drm/omap: " Maxime Ripard
2026-09-08 14:47 ` [PATCH v4 35/41] drm/rcar-du: " Maxime Ripard
2026-09-10 6:57 ` Thomas Zimmermann
2026-09-10 12:00 ` Laurent Pinchart
2026-09-08 14:47 ` [PATCH v4 36/41] drm/rz-du: " Maxime Ripard
2026-09-08 14:47 ` [PATCH v4 37/41] drm/shmobile: " Maxime Ripard
2026-09-10 6:58 ` Thomas Zimmermann
2026-09-08 14:47 ` [PATCH v4 38/41] drm/sun4i: layer: " Maxime Ripard
2026-09-08 14:47 ` [PATCH v4 39/41] drm/vmwgfx: " Maxime Ripard
2026-09-10 7:00 ` Thomas Zimmermann
2026-09-08 14:47 ` [PATCH v4 40/41] drm/atomic-state-helper: Remove __drm_atomic_helper_plane_reset() Maxime Ripard
2026-09-08 14:47 ` [PATCH v4 41/41] drm/plane: Remove reset Maxime Ripard
2026-09-10 7:03 ` [PATCH v4 00/41] drm/plane: Convert all drivers to atomic_create_state and remove reset Thomas Zimmermann
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