linux-kernel - Re: [PATCH 07/12] drm/msm/disp: pull in common tiled YUV format parameters

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <cd389c5c-b290-47e8-a374-63ad1ae886df@oss.qualcomm.com>
Date: Thu, 4 Sep 2025 15:22:55 -0700
From: Jessica Zhang <jessica.zhang@....qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
        Rob Clark <robin.clark@....qualcomm.com>,
        Dmitry Baryshkov
 <lumag@...nel.org>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>, Sean Paul <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Jordan Crouse <jordan@...micpenguin.net>
Cc: linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 07/12] drm/msm/disp: pull in common tiled YUV format
 parameters



On 7/4/2025 7:47 PM, Dmitry Baryshkov wrote:
> Pull common params of tiled YUV formats into corresponding macro
> definitions, simplifying format table.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
> ---
>   drivers/gpu/drm/msm/disp/mdp_format.c | 28 +++++++++++++---------------
>   1 file changed, 13 insertions(+), 15 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/disp/mdp_format.c b/drivers/gpu/drm/msm/disp/mdp_format.c
> index 900b2de252a6eb2eac3d0670f1aaa77f7520fd77..6f5af26d4e2d43414281197bf541e1ea3fe211f5 100644
> --- a/drivers/gpu/drm/msm/disp/mdp_format.c
> +++ b/drivers/gpu/drm/msm/disp/mdp_format.c
> @@ -284,8 +284,7 @@ static struct csc_cfg csc_convert[CSC_MAX] = {
>   	.tile_height = MDP_TILE_HEIGHT_DEFAULT                            \
>   }
>   
> -#define PSEUDO_YUV_FMT_TILED(fmt, a, r, g, b, e0, e1, chroma,             \
> -flg, fm, np, th)                                                          \
> +#define PSEUDO_YUV_FMT_TILED(fmt, r, g, b, e0, e1, chroma, flg, th)       \
>   {                                                                         \
>   	.pixel_format = DRM_FORMAT_ ## fmt,                               \
>   	.fetch_type = MDP_PLANE_PSEUDO_PLANAR,                            \
> @@ -294,13 +293,15 @@ flg, fm, np, th)                                                          \
>   	.bpc_g_y = g,                                                     \
>   	.bpc_b_cb = b,                                                    \
>   	.bpc_r_cr = r,                                                    \
> -	.bpc_a = a,                                                       \
> +	.bpc_a = 0,                                                       \
>   	.chroma_sample = chroma,                                          \
>   	.unpack_count = 2,                                                \
>   	.bpp = 2,                                                         \
> -	.fetch_mode = fm,                                                 \
> -	.flags = MSM_FORMAT_FLAG_UNPACK_TIGHT | flg,                      \
> -	.num_planes = np,                                                 \
> +	.fetch_mode = MDP_FETCH_UBWC,                                     \
> +	.flags = MSM_FORMAT_FLAG_UNPACK_TIGHT |                           \
> +		 MSM_FORMAT_FLAG_DX |                                     \

Hi Dmitry,

This sets the DX flag for NV12 when it previously wasn't being set. Did 
you mean for it to be that way?

Thanks,

Jessica Zhang

> +		 MSM_FORMAT_FLAG_COMPRESSED | flg,                        \
> +	.num_planes = 4,                                                  \
>   	.tile_height = th                                                 \
>   }
>   
> @@ -623,19 +624,16 @@ static const struct msm_format mdp_formats_ubwc[] = {
>   		C2_R_Cr, C0_G_Y, C1_B_Cb, C3_ALPHA),
>   
>   	PSEUDO_YUV_FMT_TILED(NV12,
> -		0, BPC8, BPC8, BPC8,
> +		BPC8, BPC8, BPC8,
>   		C1_B_Cb, C2_R_Cr,
> -		CHROMA_420, MSM_FORMAT_FLAG_YUV |
> -				MSM_FORMAT_FLAG_COMPRESSED,
> -		MDP_FETCH_UBWC, 4, MDP_TILE_HEIGHT_NV12),
> +		CHROMA_420, 0,
> +		MDP_TILE_HEIGHT_NV12),
>   
>   	PSEUDO_YUV_FMT_TILED(P010,
> -		0, BPC8, BPC8, BPC8,
> +		BPC8, BPC8, BPC8,
>   		C1_B_Cb, C2_R_Cr,
> -		CHROMA_420, MSM_FORMAT_FLAG_DX |
> -				MSM_FORMAT_FLAG_YUV |
> -				MSM_FORMAT_FLAG_COMPRESSED,
> -		MDP_FETCH_UBWC, 4, MDP_TILE_HEIGHT_UBWC),
> +		CHROMA_420, MSM_FORMAT_FLAG_DX,
> +		MDP_TILE_HEIGHT_UBWC),
>   };
>   
>   const struct msm_format *mdp_get_format(struct msm_kms *kms, uint32_t format,
>