[PATCH] amd/display: allow non-linear multi-planar formats
Simon Ser
contact at emersion.fr
Fri Mar 26 16:59:44 UTC 2021
Accept non-linear buffers which use a multi-planar format, as long
as they don't use DCC.
Tested on GFX9 with NV12.
Signed-off-by: Simon Ser <contact at emersion.fr>
Cc: Alex Deucher <alexander.deucher at amd.com>
Cc: Harry Wentland <hwentlan at amd.com>
Cc: Nicholas Kazlauskas <nicholas.kazlauskas at amd.com>
Cc: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 36ee52104007..66e3ecf123d1 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -4216,13 +4216,6 @@ static bool dm_plane_format_mod_supported(struct drm_plane *plane,
if (modifier == DRM_FORMAT_MOD_LINEAR)
return true;
- /*
- * The arbitrary tiling support for multiplane formats has not been hooked
- * up.
- */
- if (info->num_planes > 1)
- return false;
-
/*
* For D swizzle the canonical modifier depends on the bpp, so check
* it here.
@@ -4241,6 +4234,10 @@ static bool dm_plane_format_mod_supported(struct drm_plane *plane,
/* Per radeonsi comments 16/64 bpp are more complicated. */
if (info->cpp[0] != 4)
return false;
+ /* We support multi-planar formats, but not when combined with
+ * additional DCC metadata planes. */
+ if (info->num_planes > 1)
+ return false;
}
return true;
--
2.31.0
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