[PATCH] drm/amdgpu/display: Allow DCC for video formats on GFX12

[Dong, Ruijing]

[AMD Official Use Only - AMD Internal Distribution Only]

Reviewed-by: Ruijing Dong <ruijing.dong at amd.com>

-----Original Message-----
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of David Rosca
Sent: Thursday, February 13, 2025 12:07 PM
To: amd-gfx at lists.freedesktop.org
Cc: Rosca, David <David.Rosca at amd.com>
Subject: [PATCH] drm/amdgpu/display: Allow DCC for video formats on GFX12

We advertise DCC as supported for NV12/P010 formats on GFX12, but it would fail on this check on commit.

Signed-off-by: David Rosca <david.rosca at amd.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
index 774cc3f4f3fd..92472109f84a 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
@@ -277,8 +277,11 @@ static int amdgpu_dm_plane_validate_dcc(struct amdgpu_device *adev,
        if (!dcc->enable)
                return 0;

-       if (format >= SURFACE_PIXEL_FORMAT_VIDEO_BEGIN ||
-           !dc->cap_funcs.get_dcc_compression_cap)
+       if (adev->family < AMDGPU_FAMILY_GC_12_0_0 &&
+           format >= SURFACE_PIXEL_FORMAT_VIDEO_BEGIN)
+               return -EINVAL;
+
+       if (!dc->cap_funcs.get_dcc_compression_cap)
                return -EINVAL;

        input.format = format;
--
2.43.0