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drm/amd/display: add debug print for DCC validation failure

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[Why&How]
Print a debug message when dcc validation fails in the display driver.
Most DCC enablement related errors are from userspace. Adding a debug
print in case of a failure from display driver will aid quicker triage.

Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Aurabindo Pillai 2021-06-28 21:41:08 -04:00 committed by Alex Deucher
parent 356789e840
commit 2be7f77f6c
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@ -4747,7 +4747,7 @@ fill_gfx9_plane_attributes_from_modifiers(struct amdgpu_device *adev,
const bool force_disable_dcc)
{
const uint64_t modifier = afb->base.modifier;
int ret;
int ret = 0;
fill_gfx9_tiling_info_from_modifier(adev, tiling_info, modifier);
tiling_info->gfx9.swizzle = modifier_gfx9_swizzle_mode(modifier);
@ -4765,9 +4765,9 @@ fill_gfx9_plane_attributes_from_modifiers(struct amdgpu_device *adev,
ret = validate_dcc(adev, format, rotation, tiling_info, dcc, address, plane_size);
if (ret)
return ret;
drm_dbg_kms(adev_to_drm(adev), "validate_dcc: returned error: %d\n", ret);
return 0;
return ret;
}
static int