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drm/amd/display: Revert logic for plane modifiers 

This file was split in commit 5d945cbcd4
("drm/amd/display: Create a file dedicated to planes") and the logic in
dm_plane_format_mod_supported() function got changed by a switch logic.
That change broke drm_plane modifiers setting on series 5000 APUs
(tested on OXP mini AMD 5800U and HP Dev One 5850U PRO)
leading to Gamescope not working as reported on GitHub[1]

To reproduce the issue, enter a TTY and run:

$ gamescope -- vkcube

With said commit applied it will abort. This one restores the old logic,
fixing the issue that affects Gamescope.

[1](https://github.com/Plagman/gamescope/issues/624)

Cc: <stable@vger.kernel.org> # 6.0.x
Signed-off-by: Joaquín Ignacio Aramendía <samsagax@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Joaquín Ignacio Aramendía 2022-10-24 08:33:59 -03:00 committed by Alex Deucher
parent 969758bbf5
commit 809734c110
1 changed files with 7 additions and 43 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

50
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
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@ -1369,7 +1369,7 @@ static bool dm_plane_format_mod_supported(struct drm_plane *plane,
{
struct amdgpu_device *adev = drm_to_adev(plane->dev);
const struct drm_format_info *info = drm_format_info(format);
struct hw_asic_id asic_id = adev->dm.dc->ctx->asic_id;
int i;
enum dm_micro_swizzle microtile = modifier_gfx9_swizzle_mode(modifier) & 3;
@ -1386,49 +1386,13 @@ static bool dm_plane_format_mod_supported(struct drm_plane *plane,
return true;
}
/* check if swizzle mode is supported by this version of DCN */
switch (asic_id.chip_family) {
case FAMILY_SI:
case FAMILY_CI:
case FAMILY_KV:
case FAMILY_CZ:
case FAMILY_VI:
/* asics before AI does not have modifier support */
return false;
case FAMILY_AI:
case FAMILY_RV:
case FAMILY_NV:
case FAMILY_VGH:
case FAMILY_YELLOW_CARP:
case AMDGPU_FAMILY_GC_10_3_6:
case AMDGPU_FAMILY_GC_10_3_7:
switch (AMD_FMT_MOD_GET(TILE, modifier)) {
case AMD_FMT_MOD_TILE_GFX9_64K_R_X:
case AMD_FMT_MOD_TILE_GFX9_64K_D_X:
case AMD_FMT_MOD_TILE_GFX9_64K_S_X:
case AMD_FMT_MOD_TILE_GFX9_64K_D:
return true;
default:
return false;
}
break;
case AMDGPU_FAMILY_GC_11_0_0:
case AMDGPU_FAMILY_GC_11_0_1:
switch (AMD_FMT_MOD_GET(TILE, modifier)) {
case AMD_FMT_MOD_TILE_GFX11_256K_R_X:
case AMD_FMT_MOD_TILE_GFX9_64K_R_X:
case AMD_FMT_MOD_TILE_GFX9_64K_D_X:
case AMD_FMT_MOD_TILE_GFX9_64K_S_X:
case AMD_FMT_MOD_TILE_GFX9_64K_D:
return true;
default:
return false;
}
break;
default:
ASSERT(0); /* Unknown asic */
break;
/* Check that the modifier is on the list of the plane's supported modifiers. */
for (i = 0; i < plane->modifier_count; i++) {
if (modifier == plane->modifiers[i])
break;
}
if (i == plane->modifier_count)
return false;
/*
* For D swizzle the canonical modifier depends on the bpp, so check