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SubjectRe: [PATCH 01/36] drm/fourcc: Add 2 plane YCbCr 10bit format support
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在 2019/9/23 下午9:06, Daniel Vetter 写道:
> On Mon, Sep 23, 2019 at 2:40 PM Sandy Huang <hjc@rock-chips.com> wrote:
>> The drm_format_info.cpp[3] unit is BytePerPlane, when we add define
>> 10bit YUV format, here have some problem.
>> So we change cpp to bpp, use unit BitPerPlane to describe the data
>> format.
>>
>> Signed-off-by: Sandy Huang <hjc@rock-chips.com>
> Whatever the layout you have for these (it's not really defined in
> your patch here down to the level of detail we want) I think this
> should be described with the block_h/w and char_per_block
> functionality. Not by extending the legacy and depcrecated cpp
> somehow.
> -Daniel

Hi Daniel,

It seems the char_per_block and block_h/w can't describing the following
data format:

/*
 * 2x2 subsampled Cr:Cb plane 10 bits per channel
 * index 0 = Y plane, [9:0]
 * index 1 = Cr:Cb plane, [19:0] Cr:x:Cb:x [19:0]
 */

>> ---
>> drivers/gpu/drm/drm_client.c | 4 +-
>> drivers/gpu/drm/drm_fb_helper.c | 8 +-
>> drivers/gpu/drm/drm_format_helper.c | 4 +-
>> drivers/gpu/drm/drm_fourcc.c | 172 +++++++++++++++++++-----------------
>> drivers/gpu/drm/drm_framebuffer.c | 2 +-
>> include/drm/drm_fourcc.h | 4 +-
>> include/uapi/drm/drm_fourcc.h | 15 ++++
>> 7 files changed, 115 insertions(+), 94 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c
>> index d9a2e36..a36ffbe 100644
>> --- a/drivers/gpu/drm/drm_client.c
>> +++ b/drivers/gpu/drm/drm_client.c
>> @@ -263,7 +263,7 @@ drm_client_buffer_create(struct drm_client_dev *client, u32 width, u32 height, u
>>
>> dumb_args.width = width;
>> dumb_args.height = height;
>> - dumb_args.bpp = info->cpp[0] * 8;
>> + dumb_args.bpp = info->bpp[0];
>> ret = drm_mode_create_dumb(dev, &dumb_args, client->file);
>> if (ret)
>> goto err_delete;
>> @@ -366,7 +366,7 @@ static int drm_client_buffer_addfb(struct drm_client_buffer *buffer,
>> int ret;
>>
>> info = drm_format_info(format);
>> - fb_req.bpp = info->cpp[0] * 8;
>> + fb_req.bpp = info->bpp[0];
>> fb_req.depth = info->depth;
>> fb_req.width = width;
>> fb_req.height = height;
>> diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
>> index a7ba5b4..b30e782 100644
>> --- a/drivers/gpu/drm/drm_fb_helper.c
>> +++ b/drivers/gpu/drm/drm_fb_helper.c
>> @@ -382,7 +382,7 @@ static void drm_fb_helper_dirty_blit_real(struct drm_fb_helper *fb_helper,
>> struct drm_clip_rect *clip)
>> {
>> struct drm_framebuffer *fb = fb_helper->fb;
>> - unsigned int cpp = fb->format->cpp[0];
>> + unsigned int cpp = fb->format->bpp[0] / 8;
>> size_t offset = clip->y1 * fb->pitches[0] + clip->x1 * cpp;
>> void *src = fb_helper->fbdev->screen_buffer + offset;
>> void *dst = fb_helper->buffer->vaddr + offset;
>> @@ -1320,14 +1320,14 @@ int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
>> * Changes struct fb_var_screeninfo are currently not pushed back
>> * to KMS, hence fail if different settings are requested.
>> */
>> - if (var->bits_per_pixel != fb->format->cpp[0] * 8 ||
>> + if (var->bits_per_pixel != fb->format->bpp[0] ||
>> var->xres > fb->width || var->yres > fb->height ||
>> var->xres_virtual > fb->width || var->yres_virtual > fb->height) {
>> DRM_DEBUG("fb requested width/height/bpp can't fit in current fb "
>> "request %dx%d-%d (virtual %dx%d) > %dx%d-%d\n",
>> var->xres, var->yres, var->bits_per_pixel,
>> var->xres_virtual, var->yres_virtual,
>> - fb->width, fb->height, fb->format->cpp[0] * 8);
>> + fb->width, fb->height, fb->format->bpp[0]);
>> return -EINVAL;
>> }
>>
>> @@ -1678,7 +1678,7 @@ static void drm_fb_helper_fill_var(struct fb_info *info,
>> info->pseudo_palette = fb_helper->pseudo_palette;
>> info->var.xres_virtual = fb->width;
>> info->var.yres_virtual = fb->height;
>> - info->var.bits_per_pixel = fb->format->cpp[0] * 8;
>> + info->var.bits_per_pixel = fb->format->bpp[0];
>> info->var.accel_flags = FB_ACCELF_TEXT;
>> info->var.xoffset = 0;
>> info->var.yoffset = 0;
>> diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c
>> index 0897cb9..eea3afb 100644
>> --- a/drivers/gpu/drm/drm_format_helper.c
>> +++ b/drivers/gpu/drm/drm_format_helper.c
>> @@ -36,7 +36,7 @@ static unsigned int clip_offset(struct drm_rect *clip,
>> void drm_fb_memcpy(void *dst, void *vaddr, struct drm_framebuffer *fb,
>> struct drm_rect *clip)
>> {
>> - unsigned int cpp = fb->format->cpp[0];
>> + unsigned int cpp = fb->format->bpp[0] / 8;
>> size_t len = (clip->x2 - clip->x1) * cpp;
>> unsigned int y, lines = clip->y2 - clip->y1;
>>
>> @@ -63,7 +63,7 @@ void drm_fb_memcpy_dstclip(void __iomem *dst, void *vaddr,
>> struct drm_framebuffer *fb,
>> struct drm_rect *clip)
>> {
>> - unsigned int cpp = fb->format->cpp[0];
>> + unsigned int cpp = fb->format->bpp[0] / 8;
>> unsigned int offset = clip_offset(clip, fb->pitches[0], cpp);
>> size_t len = (clip->x2 - clip->x1) * cpp;
>> unsigned int y, lines = clip->y2 - clip->y1;
>> diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
>> index c630064..071dc07 100644
>> --- a/drivers/gpu/drm/drm_fourcc.c
>> +++ b/drivers/gpu/drm/drm_fourcc.c
>> @@ -157,89 +157,95 @@ EXPORT_SYMBOL(drm_get_format_name);
>> const struct drm_format_info *__drm_format_info(u32 format)
>> {
>> static const struct drm_format_info formats[] = {
>> - { .format = DRM_FORMAT_C8, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_RGB332, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_BGR233, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_XRGB4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_XBGR4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_RGBX4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_BGRX4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_ARGB4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_ABGR4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_RGBA4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_BGRA4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_XRGB1555, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_XBGR1555, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_RGBX5551, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_BGRX5551, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_ARGB1555, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_ABGR1555, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_RGBA5551, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_BGRA5551, .depth = 15, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_RGB565, .depth = 16, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_BGR565, .depth = 16, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_RGB888, .depth = 24, .num_planes = 1, .cpp = { 3, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_BGR888, .depth = 24, .num_planes = 1, .cpp = { 3, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_XRGB8888, .depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_XBGR8888, .depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_RGBX8888, .depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_BGRX8888, .depth = 24, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_RGB565_A8, .depth = 24, .num_planes = 2, .cpp = { 2, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_BGR565_A8, .depth = 24, .num_planes = 2, .cpp = { 2, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_XRGB2101010, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_XBGR2101010, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_RGBX1010102, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_BGRX1010102, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_ARGB2101010, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_ABGR2101010, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_RGBA1010102, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_BGRA1010102, .depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_ARGB8888, .depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_ABGR8888, .depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_RGBA8888, .depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_BGRA8888, .depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_XRGB16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_XBGR16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
>> - { .format = DRM_FORMAT_ARGB16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_ABGR16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_RGB888_A8, .depth = 32, .num_planes = 2, .cpp = { 3, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_BGR888_A8, .depth = 32, .num_planes = 2, .cpp = { 3, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_XRGB8888_A8, .depth = 32, .num_planes = 2, .cpp = { 4, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_XBGR8888_A8, .depth = 32, .num_planes = 2, .cpp = { 4, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_RGBX8888_A8, .depth = 32, .num_planes = 2, .cpp = { 4, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_BGRX8888_A8, .depth = 32, .num_planes = 2, .cpp = { 4, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> - { .format = DRM_FORMAT_YUV410, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 4, .vsub = 4, .is_yuv = true },
>> - { .format = DRM_FORMAT_YVU410, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 4, .vsub = 4, .is_yuv = true },
>> - { .format = DRM_FORMAT_YUV411, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 4, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_YVU411, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 4, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_YUV420, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 2, .vsub = 2, .is_yuv = true },
>> - { .format = DRM_FORMAT_YVU420, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 2, .vsub = 2, .is_yuv = true },
>> - { .format = DRM_FORMAT_YUV422, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_YVU422, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_YUV444, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_YVU444, .depth = 0, .num_planes = 3, .cpp = { 1, 1, 1 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_NV12, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true },
>> - { .format = DRM_FORMAT_NV21, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true },
>> - { .format = DRM_FORMAT_NV16, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_NV61, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_NV24, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_NV42, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_YUYV, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_YVYU, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_UYVY, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_VYUY, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_XYUV8888, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_VUY888, .depth = 0, .num_planes = 1, .cpp = { 3, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_AYUV, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
>> - { .format = DRM_FORMAT_Y210, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_Y212, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_Y216, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_Y410, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
>> - { .format = DRM_FORMAT_Y412, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
>> - { .format = DRM_FORMAT_Y416, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
>> - { .format = DRM_FORMAT_XVYU2101010, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_XVYU12_16161616, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>> - { .format = DRM_FORMAT_XVYU16161616, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_C8, .depth = 8, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_RGB332, .depth = 8, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_BGR233, .depth = 8, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_XRGB4444, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_XBGR4444, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_RGBX4444, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_BGRX4444, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_ARGB4444, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_ABGR4444, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_RGBA4444, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_BGRA4444, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_XRGB1555, .depth = 15, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_XBGR1555, .depth = 15, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_RGBX5551, .depth = 15, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_BGRX5551, .depth = 15, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_ARGB1555, .depth = 15, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_ABGR1555, .depth = 15, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_RGBA5551, .depth = 15, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_BGRA5551, .depth = 15, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_RGB565, .depth = 16, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_BGR565, .depth = 16, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_RGB888, .depth = 24, .num_planes = 1, .cpp = { 24, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_BGR888, .depth = 24, .num_planes = 1, .cpp = { 24, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_XRGB8888, .depth = 24, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_XBGR8888, .depth = 24, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_RGBX8888, .depth = 24, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_BGRX8888, .depth = 24, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_RGB565_A8, .depth = 24, .num_planes = 2, .cpp = { 16, 8, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_BGR565_A8, .depth = 24, .num_planes = 2, .cpp = { 16, 8, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_XRGB2101010, .depth = 30, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_XBGR2101010, .depth = 30, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_RGBX1010102, .depth = 30, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_BGRX1010102, .depth = 30, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_ARGB2101010, .depth = 30, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_ABGR2101010, .depth = 30, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_RGBA1010102, .depth = 30, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_BGRA1010102, .depth = 30, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_ARGB8888, .depth = 32, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_ABGR8888, .depth = 32, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_RGBA8888, .depth = 32, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_BGRA8888, .depth = 32, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_XRGB16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_XBGR16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + { .format = DRM_FORMAT_ARGB16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_ABGR16161616F, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_RGB888_A8, .depth = 32, .num_planes = 2, .cpp = { 24, 8, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_BGR888_A8, .depth = 32, .num_planes = 2, .cpp = { 24, 8, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_XRGB8888_A8, .depth = 32, .num_planes = 2, .cpp = { 32, 8, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_XBGR8888_A8, .depth = 32, .num_planes = 2, .cpp = { 32, 8, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_RGBX8888_A8, .depth = 32, .num_planes = 2, .cpp = { 32, 8, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_BGRX8888_A8, .depth = 32, .num_planes = 2, .cpp = { 32, 8, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>> + { .format = DRM_FORMAT_YUV410, .depth = 0, .num_planes = 3, .cpp = { 8, 8, 8 }, .hsub = 4, .vsub = 4, .is_yuv = true },
>> + { .format = DRM_FORMAT_YVU410, .depth = 0, .num_planes = 3, .cpp = { 8, 8, 8 }, .hsub = 4, .vsub = 4, .is_yuv = true },
>> + { .format = DRM_FORMAT_YUV411, .depth = 0, .num_planes = 3, .cpp = { 8, 8, 8 }, .hsub = 4, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_YVU411, .depth = 0, .num_planes = 3, .cpp = { 8, 8, 8 }, .hsub = 4, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_YUV420, .depth = 0, .num_planes = 3, .cpp = { 8, 8, 8 }, .hsub = 2, .vsub = 2, .is_yuv = true },
>> + { .format = DRM_FORMAT_YVU420, .depth = 0, .num_planes = 3, .cpp = { 8, 8, 8 }, .hsub = 2, .vsub = 2, .is_yuv = true },
>> + { .format = DRM_FORMAT_YUV422, .depth = 0, .num_planes = 3, .cpp = { 8, 8, 8 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_YVU422, .depth = 0, .num_planes = 3, .cpp = { 8, 8, 8 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_YUV444, .depth = 0, .num_planes = 3, .cpp = { 8, 8, 8 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_YVU444, .depth = 0, .num_planes = 3, .cpp = { 8, 8, 8 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_NV12, .depth = 0, .num_planes = 2, .cpp = { 8, 16, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true },
>> + { .format = DRM_FORMAT_NV21, .depth = 0, .num_planes = 2, .cpp = { 8, 16, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true },
>> + { .format = DRM_FORMAT_NV16, .depth = 0, .num_planes = 2, .cpp = { 8, 16, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_NV61, .depth = 0, .num_planes = 2, .cpp = { 8, 16, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_NV24, .depth = 0, .num_planes = 2, .cpp = { 8, 16, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_NV42, .depth = 0, .num_planes = 2, .cpp = { 8, 16, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_NV12_10, .depth = 0, .num_planes = 2, .cpp = { 10, 20, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true },
>> + { .format = DRM_FORMAT_NV21_10, .depth = 0, .num_planes = 2, .cpp = { 10, 20, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true },
>> + { .format = DRM_FORMAT_NV16_10, .depth = 0, .num_planes = 2, .cpp = { 10, 20, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_NV61_10, .depth = 0, .num_planes = 2, .cpp = { 10, 20, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_NV24_10, .depth = 0, .num_planes = 2, .cpp = { 10, 20, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_NV42_10, .depth = 0, .num_planes = 2, .cpp = { 10, 20, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_YUYV, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_YVYU, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_UYVY, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_VYUY, .depth = 0, .num_planes = 1, .cpp = { 16, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_XYUV8888, .depth = 0, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_VUY888, .depth = 0, .num_planes = 1, .cpp = { 24, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_AYUV, .depth = 0, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
>> + { .format = DRM_FORMAT_Y210, .depth = 0, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_Y212, .depth = 0, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_Y216, .depth = 0, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_Y410, .depth = 0, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
>> + { .format = DRM_FORMAT_Y412, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
>> + { .format = DRM_FORMAT_Y416, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
>> + { .format = DRM_FORMAT_XVYU2101010, .depth = 0, .num_planes = 1, .cpp = { 32, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_XVYU12_16161616, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>> + { .format = DRM_FORMAT_XVYU16161616, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
>> { .format = DRM_FORMAT_Y0L0, .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, .has_alpha = true, .is_yuv = true },
>> diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
>> index 0b72468..7b29e97 100644
>> --- a/drivers/gpu/drm/drm_framebuffer.c
>> +++ b/drivers/gpu/drm/drm_framebuffer.c
>> @@ -530,7 +530,7 @@ int drm_mode_getfb(struct drm_device *dev,
>> r->height = fb->height;
>> r->width = fb->width;
>> r->depth = fb->format->depth;
>> - r->bpp = fb->format->cpp[0] * 8;
>> + r->bpp = fb->format->bpp[0];
>> r->pitch = fb->pitches[0];
>>
>> /* GET_FB() is an unprivileged ioctl so we must not return a
>> diff --git a/include/drm/drm_fourcc.h b/include/drm/drm_fourcc.h
>> index 306d1ef..021358d 100644
>> --- a/include/drm/drm_fourcc.h
>> +++ b/include/drm/drm_fourcc.h
>> @@ -73,12 +73,12 @@ struct drm_format_info {
>> /**
>> * @cpp:
>> *
>> - * Number of bytes per pixel (per plane), this is aliased with
>> + * Number of bits per pixel (per plane), this is aliased with
>> * @char_per_block. It is deprecated in favour of using the
>> * triplet @char_per_block, @block_w, @block_h for better
>> * describing the pixel format.
>> */
>> - u8 cpp[3];
>> + u8 bpp[3];
>>
>> /**
>> * @char_per_block:
>> diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
>> index 3feeaa3..5fe89e9 100644
>> --- a/include/uapi/drm/drm_fourcc.h
>> +++ b/include/uapi/drm/drm_fourcc.h
>> @@ -266,6 +266,21 @@ extern "C" {
>> #define DRM_FORMAT_P016 fourcc_code('P', '0', '1', '6') /* 2x2 subsampled Cr:Cb plane 16 bits per channel */
>>
>> /*
>> + * 2 plane YCbCr 10bit
>> + * index 0 = Y plane, [9:0] Y
>> + * index 1 = Cr:Cb plane, [19:0] Cr:Cb little endian
>> + * or
>> + * index 1 = Cb:Cr plane, [19:0] Cb:Cr little endian
>> + */
>> +
>> +#define DRM_FORMAT_NV12_10 fourcc_code('N', 'A', '1', '2') /* 2x2 subsampled Cr:Cb plane */
>> +#define DRM_FORMAT_NV21_10 fourcc_code('N', 'A', '2', '1') /* 2x2 subsampled Cb:Cr plane */
>> +#define DRM_FORMAT_NV16_10 fourcc_code('N', 'A', '1', '6') /* 2x1 subsampled Cr:Cb plane */
>> +#define DRM_FORMAT_NV61_10 fourcc_code('N', 'A', '6', '1') /* 2x1 subsampled Cb:Cr plane */
>> +#define DRM_FORMAT_NV24_10 fourcc_code('N', 'A', '2', '4') /* non-subsampled Cr:Cb plane */
>> +#define DRM_FORMAT_NV42_10 fourcc_code('N', 'A', '4', '2') /* non-subsampled Cb:Cr plane */
>> +
>> +/*
>> * 3 plane YCbCr
>> * index 0: Y plane, [7:0] Y
>> * index 1: Cb plane, [7:0] Cb
>> --
>> 2.7.4
>>
>>
>>
>


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