target/linux/bcm27xx/patches-5.4/950-0468-drm-vc4-Add-DRM_FORMAT_P030-support-to-firmware-kms.patch

   1 From 531d3d5c89825bade52f4257d264bbb06775a6fa Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Fri, 24 Jan 2020 14:24:33 +0000
   4 Subject: [PATCH] drm/vc4: Add DRM_FORMAT_P030 support to firmware-kms
   5
   6 Adds support for this format which is 3 10bit samples packed into
   7 4 bytes, as used by the HEVC codec block.
   8
   9 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  10 ---
  11  drivers/gpu/drm/vc4/vc4_firmware_kms.c | 21 ++++++++++++++++++++-
  12  drivers/gpu/drm/vc4/vc_image_types.h   |  4 ++++
  13  2 files changed, 24 insertions(+), 1 deletion(-)
  14
  15 --- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
  16 +++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
  17 @@ -216,6 +216,10 @@ static const struct vc_image_format {
  18                 .vc_image = VC_IMAGE_YUV420SP,
  19                 .is_vu = 1,
  20         },
  21 +       {
  22 +               .drm = DRM_FORMAT_P030,
  23 +               .vc_image = VC_IMAGE_YUV10COL,
  24 +       },
  25  };
  26
  27  static const struct vc_image_format *vc4_get_vc_image_fmt(u32 drm_format)
  28 @@ -622,7 +626,15 @@ static int vc4_plane_to_mb(struct drm_pl
  29                 }
  30                 break;
  31         case DRM_FORMAT_MOD_BROADCOM_SAND128:
  32 -               mb->plane.vc_image_type = VC_IMAGE_YUV_UV;
  33 +               switch (mb->plane.vc_image_type) {
  34 +               case VC_IMAGE_YUV420SP:
  35 +                       mb->plane.vc_image_type = VC_IMAGE_YUV_UV;
  36 +                       break;
  37 +               /* VC_IMAGE_YUV10COL could be included in here, but it is only
  38 +                * valid as a SAND128 format, so the table at the top will have
  39 +                * already set the correct format.
  40 +                */
  41 +               }
  42                 /* Note that the column pitch is passed across in lines, not
  43                  * bytes.
  44                  */
  45 @@ -707,6 +719,13 @@ static bool vc4_fkms_format_mod_supporte
  46                 case DRM_FORMAT_MOD_BROADCOM_SAND128:
  47                         return true;
  48                 default:
  49 +                       return false;
  50 +               }
  51 +       case DRM_FORMAT_P030:
  52 +               switch (fourcc_mod_broadcom_mod(modifier)) {
  53 +               case DRM_FORMAT_MOD_BROADCOM_SAND128:
  54 +                       return true;
  55 +               default:
  56                         return false;
  57                 }
  58         case DRM_FORMAT_NV21:
  59 --- a/drivers/gpu/drm/vc4/vc_image_types.h
  60 +++ b/drivers/gpu/drm/vc4/vc_image_types.h
  61 @@ -139,6 +139,10 @@ enum {
  62         VC_IMAGE_YUV_UV_16,
  63         /* YUV4:2:0 with U,V in side-by-side format */
  64         VC_IMAGE_YUV420_S,
  65 +       /* 10-bit YUV 420 column image format */
  66 +       VC_IMAGE_YUV10COL,
  67 +       /* 32-bpp, 10-bit R/G/B, 2-bit Alpha */
  68 +       VC_IMAGE_RGBA1010102,
  69
  70         VC_IMAGE_MAX,     /* bounds for error checking */
  71         VC_IMAGE_FORCE_ENUM_16BIT = 0xffff,