[PATCH v4 0/2] Add support for a YUV 10bits pixel format

[PATCH v4 0/2] Add support for a YUV 10bits pixel format

[Randy Li]

I wonder why this patches are still not merged and well review.
So I just re-send them. I wish it is merged in a short time, or
I can't add a new pixel format to weston.

You can use the Gstreamer to verify this patch.

Randy Li (2):
  drm/fourcc: add a 10bits fully packed variant of NV12
  drm/rockchip: Support 10 bits yuv format in vop

 drivers/gpu/drm/drm_fourcc.c                |  1 +
 drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 16 ++++++++++++++--
 drivers/gpu/drm/rockchip/rockchip_drm_vop.h |  1 +
 drivers/gpu/drm/rockchip/rockchip_vop_reg.c |  2 ++
 include/uapi/drm/drm_fourcc.h               |  8 ++++++++
 5 files changed, 26 insertions(+), 2 deletions(-)

-- 
2.14.5

[PATCH v4 1/2] drm/fourcc: add a 10bits fully packed variant of NV12

[Randy Li]

This pixel format is a fully packed and 10bits variant of NV12.
A luma pixel would take 10bits in memory, without any
filled bits between pixels in a stride.

Signed-off-by: Randy Li <ayaka-xPW3/0Ywev/iB9QmIjCX8w@public.gmane.org>
---
 drivers/gpu/drm/drm_fourcc.c  | 1 +
 include/uapi/drm/drm_fourcc.h | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
index f523948c82b1..76d3ce314f31 100644
--- a/drivers/gpu/drm/drm_fourcc.c
+++ b/drivers/gpu/drm/drm_fourcc.c
@@ -237,6 +237,7 @@ const struct drm_format_info *__drm_format_info(u32 format)
 		{ .format = DRM_FORMAT_X0L2,		.depth = 0,  .num_planes = 1,
 		  .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
 		  .hsub = 2, .vsub = 2, .is_yuv = true },
+		{ .format = DRM_FORMAT_NV12_10LE40,	.depth = 0,  .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 2 },
 	};
 
 	unsigned int i;
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
index e7e48f1f4a74..5de5aff83d85 100644
--- a/include/uapi/drm/drm_fourcc.h
+++ b/include/uapi/drm/drm_fourcc.h
@@ -193,6 +193,14 @@ extern "C" {
 #define DRM_FORMAT_NV61		fourcc_code('N', 'V', '6', '1') /* 2x1 subsampled Cb:Cr plane */
 #define DRM_FORMAT_NV24		fourcc_code('N', 'V', '2', '4') /* non-subsampled Cr:Cb plane */
 #define DRM_FORMAT_NV42		fourcc_code('N', 'V', '4', '2') /* non-subsampled Cb:Cr plane */
+/*
+ * A fully packed  2 plane YCbCr
+ * Y1 0-9, Y2 10-19, Y3 20-29, Y4 20-39
+ * ....
+ * U1V1: 0-19, U2V2: 20-39
+ */
+#define DRM_FORMAT_NV12_10LE40	fourcc_code('R', 'K', '2', '0') /* 2x2 subsampled Cr:Cb plane */
+
 
 /*
  * 3 plane YCbCr
-- 
2.14.5

[PATCH v4 2/2] drm/rockchip: Support 10 bits yuv format in vop

[Randy Li]

The rockchip use fully packed pixel format variants
for YUV 10bits.

This patch only make the VOP accept this pixel format,
but it doesn't add the converting data path for
the color gamuts that the target display are supported.

Signed-off-by: Randy Li <ayaka-xPW3/0Ywev/iB9QmIjCX8w@public.gmane.org>
---
 drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 16 ++++++++++++++--
 drivers/gpu/drm/rockchip/rockchip_drm_vop.h |  1 +
 drivers/gpu/drm/rockchip/rockchip_vop_reg.c |  2 ++
 3 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index fb70fb486fbf..9301006329e8 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -238,6 +238,7 @@ static enum vop_data_format vop_convert_format(uint32_t format)
 	case DRM_FORMAT_BGR565:
 		return VOP_FMT_RGB565;
 	case DRM_FORMAT_NV12:
+	case DRM_FORMAT_NV12_10LE40:
 		return VOP_FMT_YUV420SP;
 	case DRM_FORMAT_NV16:
 		return VOP_FMT_YUV422SP;
@@ -725,6 +726,7 @@ static void vop_plane_atomic_update(struct drm_plane *plane,
 	dma_addr_t dma_addr;
 	uint32_t val;
 	bool rb_swap;
+	bool is_10_bits = false;
 	int win_index = VOP_WIN_TO_INDEX(vop_win);
 	int format;
 
@@ -743,6 +745,8 @@ static void vop_plane_atomic_update(struct drm_plane *plane,
 	}
 
 	obj = fb->obj[0];
+	is_10_bits = is_yuv_10bit(fb->format->format);
+
 	rk_obj = to_rockchip_obj(obj);
 
 	actual_w = drm_rect_width(src) >> 16;
@@ -756,7 +760,11 @@ static void vop_plane_atomic_update(struct drm_plane *plane,
 	dsp_sty = dest->y1 + crtc->mode.vtotal - crtc->mode.vsync_start;
 	dsp_st = dsp_sty << 16 | (dsp_stx & 0xffff);
 
-	offset = (src->x1 >> 16) * fb->format->cpp[0];
+	if (is_10_bits)
+		offset = (src->x1 >> 16) * (fb->format->cpp[0] * 5 / 4);
+	else
+		offset = (src->x1 >> 16) * fb->format->cpp[0];
+
 	offset += (src->y1 >> 16) * fb->pitches[0];
 	dma_addr = rk_obj->dma_addr + offset + fb->offsets[0];
 
@@ -767,6 +775,7 @@ static void vop_plane_atomic_update(struct drm_plane *plane,
 	VOP_WIN_SET(vop, win, format, format);
 	VOP_WIN_SET(vop, win, yrgb_vir, DIV_ROUND_UP(fb->pitches[0], 4));
 	VOP_WIN_SET(vop, win, yrgb_mst, dma_addr);
+	VOP_WIN_SET(vop, win, fmt_10, is_10_bits);
 	if (fb->format->is_yuv) {
 		int hsub = drm_format_horz_chroma_subsampling(fb->format->format);
 		int vsub = drm_format_vert_chroma_subsampling(fb->format->format);
@@ -775,7 +784,10 @@ static void vop_plane_atomic_update(struct drm_plane *plane,
 		uv_obj = fb->obj[1];
 		rk_uv_obj = to_rockchip_obj(uv_obj);
 
-		offset = (src->x1 >> 16) * bpp / hsub;
+		if (is_10_bits)
+			offset = (src->x1 >> 16) * (bpp * 5 / 4) / hsub;
+		else
+			offset = (src->x1 >> 16) * bpp / hsub;
 		offset += (src->y1 >> 16) * fb->pitches[1] / vsub;
 
 		dma_addr = rk_uv_obj->dma_addr + offset + fb->offsets[1];
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
index 0fe40e1983d9..1ab32d8be599 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
@@ -132,6 +132,7 @@ struct vop_win_phy {
 	struct vop_reg enable;
 	struct vop_reg gate;
 	struct vop_reg format;
+	struct vop_reg fmt_10;
 	struct vop_reg rb_swap;
 	struct vop_reg act_info;
 	struct vop_reg dsp_info;
diff --git a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
index 08fc40af52c8..6370f7d33273 100644
--- a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
+++ b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
@@ -50,6 +50,7 @@ static const uint32_t formats_win_full[] = {
 	DRM_FORMAT_NV12,
 	DRM_FORMAT_NV16,
 	DRM_FORMAT_NV24,
+	DRM_FORMAT_NV12_10LE40,
 };
 
 static const uint32_t formats_win_lite[] = {
@@ -428,6 +429,7 @@ static const struct vop_win_phy rk3288_win01_data = {
 	.nformats = ARRAY_SIZE(formats_win_full),
 	.enable = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 0),
 	.format = VOP_REG(RK3288_WIN0_CTRL0, 0x7, 1),
+	.fmt_10 = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 4),
 	.rb_swap = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 12),
 	.act_info = VOP_REG(RK3288_WIN0_ACT_INFO, 0x1fff1fff, 0),
 	.dsp_info = VOP_REG(RK3288_WIN0_DSP_INFO, 0x0fff0fff, 0),
-- 
2.14.5