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anv: Return scanout PAT entry for scanout and external buffers in discrete GPUs

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Without this scanout and external buffers will be allocated as WB
what will fail allocation if DRM_XE_GEM_CREATE_FLAG_SCANOUT is set
or it will use WC but it will not be the special PAT entry for scanout.

Cc: mesa-stable
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33044>
This commit is contained in:
José Roberto de Souza 2025-01-14 08:11:04 -08:00 • committed by Marge Bot
parent 41ae187003
commit 5a37467cfd
1 changed files with 3 additions and 2 deletions
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5
src/intel/vulkan/anv_device.c
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@ -2134,6 +2134,9 @@ anv_device_get_pat_entry(struct anv_device *device,
if (alloc_flags & ANV_BO_ALLOC_COMPRESSED)
return &device->info->pat.compressed;
if (alloc_flags & (ANV_BO_ALLOC_EXTERNAL | ANV_BO_ALLOC_SCANOUT))
return &device->info->pat.scanout;
/* PAT indexes has no actual effect in DG2 and DG1, smem caches will always
* be snopped by GPU and lmem will always be WC.
* This might change in future discrete platforms.
@ -2147,8 +2150,6 @@ anv_device_get_pat_entry(struct anv_device *device,
/* Integrated platforms handling only */
if ((alloc_flags & (ANV_BO_ALLOC_HOST_CACHED_COHERENT)) == ANV_BO_ALLOC_HOST_CACHED_COHERENT)
return &device->info->pat.cached_coherent;
else if (alloc_flags & (ANV_BO_ALLOC_EXTERNAL | ANV_BO_ALLOC_SCANOUT))
return &device->info->pat.scanout;
else if (alloc_flags & ANV_BO_ALLOC_HOST_CACHED)
return &device->info->pat.writeback_incoherent;
else