[Intel-gfx] [PATCH V2] drm/i915/skl+: Add YUV pixel format in Capability list

[Kumar, Mahesh]

Ok..., Will resubmit the patch with suggested changes.

Regards,
-Mahesh

On 8/24/2015 3:53 PM, Jindal, Sonika wrote:
> Can you please add the test case name to the commit message?
> Also, this should be split into two patches one addressing the divide by zero error and another one to add plane formats.
>
> Regards,
> Sonika
>
> -----Original Message-----
> From: Intel-gfx [mailto:intel-gfx-bounces at lists.freedesktop.org] On Behalf Of Kumar, Mahesh
> Sent: Friday, July 17, 2015 7:21 PM
> To: intel-gfx at lists.freedesktop.org
> Subject: [Intel-gfx] [PATCH V2] drm/i915/skl+: Add YUV pixel format in Capability list
>
> GEN >= 9 supports YUV format for all planes, but it's not exported in Capability list of primary plane. Add YUV formats in skl_primary_formats list.
> Don't rely on fb->bits_per_pixel as intel_framebuffer_init is not filling bits_per_pixel field of fb-struct for YUV pixel format.
> This leads to divide by zero error during watermark calculation.
>
> V2: Don't break NV12 case.
>
> Signed-off-by: Kumar, Mahesh <mahesh1.kumar at intel.com>
> Cc: Konduru, Chandra <chandra.konduru at intel.com>
> ---
>
>   IGT changes made for testcase will be sent in separate patch.
>
>   drivers/gpu/drm/i915/intel_display.c | 4 ++++
>   drivers/gpu/drm/i915/intel_pm.c      | 3 ++-
>   2 files changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index af0bcfe..d31704a 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -72,6 +72,10 @@ static const uint32_t skl_primary_formats[] = {
>   	DRM_FORMAT_ABGR8888,
>   	DRM_FORMAT_XRGB2101010,
>   	DRM_FORMAT_XBGR2101010,
> +	DRM_FORMAT_YUYV,
> +	DRM_FORMAT_YVYU,
> +	DRM_FORMAT_UYVY,
> +	DRM_FORMAT_VYUY,
>   };
>   
>   /* Cursor formats */
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 5eeddc9..5768f8c 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -3164,7 +3164,8 @@ static void skl_compute_wm_pipe_parameters(struct drm_crtc *crtc,
>   		if (fb) {
>   			p->plane[0].enabled = true;
>   			p->plane[0].bytes_per_pixel = fb->pixel_format == DRM_FORMAT_NV12 ?
> -				drm_format_plane_cpp(fb->pixel_format, 1) : fb->bits_per_pixel / 8;
> +				drm_format_plane_cpp(fb->pixel_format, 1) :
> +				drm_format_plane_cpp(fb->pixel_format, 0);
>   			p->plane[0].y_bytes_per_pixel = fb->pixel_format == DRM_FORMAT_NV12 ?
>   				drm_format_plane_cpp(fb->pixel_format, 0) : 0;
>   			p->plane[0].tiling = fb->modifier[0];
> --
> 1.9.1
>
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