[PATCH 4.19 44/50] drm/msm/mdp5: fix cursor-related warnings

Greg Kroah-Hartman
2021-10-18T13:31:31Z

From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

commit c491a0c7bbf3a64732cb8414021429d15ec08eec upstream.

Since f35a2a99100f ("drm/encoder: make encoder control functions
optional") drm_mode_config_validate would print warnings if both cursor
plane and cursor functions are provided. Restore separate set of
drm_crtc_funcs to be used if separate cursor plane is provided.

[ 6.556046] ------------[ cut here ]------------
[ 6.556071] [CRTC:93:crtc-0] must not have both a cursor plane and a cursor_set func
[ 6.556091] WARNING: CPU: 1 PID: 76 at drivers/gpu/drm/drm_mode_config.c:648 drm_mode_config_validate+0x238/0x4d0
[ 6.567453] Modules linked in:
[ 6.577604] CPU: 1 PID: 76 Comm: kworker/u8:2 Not tainted 5.15.0-rc1-dirty #43
[ 6.580557] Hardware name: Qualcomm Technologies, Inc. DB820c (DT)
[ 6.587763] Workqueue: events_unbound deferred_probe_work_func
[ 6.593926] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 6.599740] pc : drm_mode_config_validate+0x238/0x4d0
[ 6.606596] lr : drm_mode_config_validate+0x238/0x4d0
[ 6.611804] sp : ffff8000121b3980
[ 6.616838] x29: ffff8000121b3990 x28: 0000000000000000 x27: 0000000000000001
[ 6.620140] x26: ffff8000114cde50 x25: ffff8000114cdd40 x24: ffff0000987282d8
[ 6.627258] x23: 0000000000000000 x22: 0000000000000000 x21: 0000000000000001
[ 6.634376] x20: ffff000098728000 x19: ffff000080a39000 x18: ffffffffffffffff
[ 6.641494] x17: 3136564e3631564e x16: 0000000000000324 x15: ffff800011c78709
[ 6.648613] x14: 0000000000000000 x13: ffff800011a22850 x12: 00000000000009ab
[ 6.655730] x11: 0000000000000339 x10: ffff800011a22850 x9 : ffff800011a22850
[ 6.662848] x8 : 00000000ffffefff x7 : ffff800011a7a850 x6 : ffff800011a7a850
[ 6.669966] x5 : 000000000000bff4 x4 : 40000000fffff339 x3 : 0000000000000000
[ 6.677084] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff00008093b800
[ 6.684205] Call trace:
[ 6.691319] drm_mode_config_validate+0x238/0x4d0
[ 6.693577] drm_dev_register+0x17c/0x210
[ 6.698435] msm_drm_bind+0x4b4/0x694
[ 6.702429] try_to_bring_up_master+0x164/0x1d0
[ 6.706075] __component_add+0xa0/0x170
[ 6.710415] component_add+0x14/0x20
[ 6.714234] msm_hdmi_dev_probe+0x1c/0x2c
[ 6.718053] platform_probe+0x68/0xe0
[ 6.721959] really_probe.part.0+0x9c/0x30c
[ 6.725606] __driver_probe_device+0x98/0x144
[ 6.729600] driver_probe_device+0xc8/0x15c
[ 6.734114] __device_attach_driver+0xb4/0x120
[ 6.738106] bus_for_each_drv+0x78/0xd0
[ 6.742619] __device_attach+0xdc/0x184
[ 6.746351] device_initial_probe+0x14/0x20
[ 6.750172] bus_probe_device+0x9c/0xa4
[ 6.754337] deferred_probe_work_func+0x88/0xc0
[ 6.758158] process_one_work+0x1d0/0x370
[ 6.762671] worker_thread+0x2c8/0x470
[ 6.766839] kthread+0x15c/0x170
[ 6.770483] ret_from_fork+0x10/0x20
[ 6.773870] ---[ end trace 5884eb76cd26d274 ]---
[ 6.777500] ------------[ cut here ]------------
[ 6.782043] [CRTC:93:crtc-0] must not have both a cursor plane and a cursor_move func
[ 6.782063] WARNING: CPU: 1 PID: 76 at drivers/gpu/drm/drm_mode_config.c:654 drm_mode_config_validate+0x290/0x4d0
[ 6.794362] Modules linked in:
[ 6.804600] CPU: 1 PID: 76 Comm: kworker/u8:2 Tainted: G W 5.15.0-rc1-dirty #43
[ 6.807555] Hardware name: Qualcomm Technologies, Inc. DB820c (DT)
[ 6.816148] Workqueue: events_unbound deferred_probe_work_func
[ 6.822311] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 6.828126] pc : drm_mode_config_validate+0x290/0x4d0
[ 6.834981] lr : drm_mode_config_validate+0x290/0x4d0
[ 6.840189] sp : ffff8000121b3980
[ 6.845223] x29: ffff8000121b3990 x28: 0000000000000000 x27: 0000000000000001
[ 6.848525] x26: ffff8000114cde50 x25: ffff8000114cdd40 x24: ffff0000987282d8
[ 6.855643] x23: 0000000000000000 x22: 0000000000000000 x21: 0000000000000001
[ 6.862763] x20: ffff000098728000 x19: ffff000080a39000 x18: ffffffffffffffff
[ 6.869879] x17: 3136564e3631564e x16: 0000000000000324 x15: ffff800011c790c2
[ 6.876998] x14: 0000000000000000 x13: ffff800011a22850 x12: 0000000000000a2f
[ 6.884116] x11: 0000000000000365 x10: ffff800011a22850 x9 : ffff800011a22850
[ 6.891234] x8 : 00000000ffffefff x7 : ffff800011a7a850 x6 : ffff800011a7a850
[ 6.898351] x5 : 000000000000bff4 x4 : 40000000fffff365 x3 : 0000000000000000
[ 6.905470] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff00008093b800
[ 6.912590] Call trace:
[ 6.919702] drm_mode_config_validate+0x290/0x4d0
[ 6.921960] drm_dev_register+0x17c/0x210
[ 6.926821] msm_drm_bind+0x4b4/0x694
[ 6.930813] try_to_bring_up_master+0x164/0x1d0
[ 6.934459] __component_add+0xa0/0x170
[ 6.938799] component_add+0x14/0x20
[ 6.942619] msm_hdmi_dev_probe+0x1c/0x2c
[ 6.946438] platform_probe+0x68/0xe0
[ 6.950345] really_probe.part.0+0x9c/0x30c
[ 6.953991] __driver_probe_device+0x98/0x144
[ 6.957984] driver_probe_device+0xc8/0x15c
[ 6.962498] __device_attach_driver+0xb4/0x120
[ 6.966492] bus_for_each_drv+0x78/0xd0
[ 6.971004] __device_attach+0xdc/0x184
[ 6.974737] device_initial_probe+0x14/0x20
[ 6.978556] bus_probe_device+0x9c/0xa4
[ 6.982722] deferred_probe_work_func+0x88/0xc0
[ 6.986543] process_one_work+0x1d0/0x370
[ 6.991057] worker_thread+0x2c8/0x470
[ 6.995223] kthread+0x15c/0x170
[ 6.998869] ret_from_fork+0x10/0x20
[ 7.002255] ---[ end trace 5884eb76cd26d275 ]---

Fixes: aa649e875daf ("drm/msm/mdp5: mdp5_crtc: Restore cursor state only if LM cursors are enabled")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20210925192824.3416259-1-dmitry.baryshkov@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)

--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c
+++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c
@@ -1053,6 +1053,20 @@ static void mdp5_crtc_destroy_state(stru
kfree(mdp5_cstate);
}

+static const struct drm_crtc_funcs mdp5_crtc_no_lm_cursor_funcs = {
+ .set_config = drm_atomic_helper_set_config,
+ .destroy = mdp5_crtc_destroy,
+ .page_flip = drm_atomic_helper_page_flip,
+ .reset = mdp5_crtc_reset,
+ .atomic_duplicate_state = mdp5_crtc_duplicate_state,
+ .atomic_destroy_state = mdp5_crtc_destroy_state,
+ .atomic_print_state = mdp5_crtc_atomic_print_state,
+ .get_vblank_counter = mdp5_crtc_get_vblank_counter,
+ .enable_vblank = msm_crtc_enable_vblank,
+ .disable_vblank = msm_crtc_disable_vblank,
+ .get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp,
+};
+
static const struct drm_crtc_funcs mdp5_crtc_funcs = {
.set_config = drm_atomic_helper_set_config,
.destroy = mdp5_crtc_destroy,
@@ -1236,6 +1250,8 @@ struct drm_crtc *mdp5_crtc_init(struct d
mdp5_crtc->lm_cursor_enabled = cursor_plane ? false : true;

drm_crtc_init_with_planes(dev, crtc, plane, cursor_plane,
+ cursor_plane ?
+ &mdp5_crtc_no_lm_cursor_funcs :
&mdp5_crtc_funcs, NULL);

drm_flip_work_init(&mdp5_crtc->unref_cursor_work,