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Revert duplicate "drm/amdgpu: disable peer-to-peer access for DCC-enabled GC12 VRAM surfaces"

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This reverts commit 22a36e660d once,
which was merged twice due to an incorrect backmerge resolution.

Fixes: ce0478b02e ("Merge tag 'v6.18-rc6' into drm-next")
Signed-off-by: Peter Colberg <pcolberg@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Peter Colberg
2025-12-22 12:42:48 -05:00
committed by Alex Deucher
parent 6a23e7b433
commit 38a0f4cf8c
1 changed files with 0 additions and 12 deletions
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12
drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
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@@ -84,18 +84,6 @@ static int amdgpu_dma_buf_attach(struct dma_buf *dmabuf,
struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
int r;
/*
* Disable peer-to-peer access for DCC-enabled VRAM surfaces on GFX12+.
* Such buffers cannot be safely accessed over P2P due to device-local
* compression metadata. Fallback to system-memory path instead.
* Device supports GFX12 (GC 12.x or newer)
* BO was created with the AMDGPU_GEM_CREATE_GFX12_DCC flag
*
*/
if (amdgpu_ip_version(adev, GC_HWIP, 0) >= IP_VERSION(12, 0, 0) &&
bo->flags & AMDGPU_GEM_CREATE_GFX12_DCC)
attach->peer2peer = false;
/*
* Disable peer-to-peer access for DCC-enabled VRAM surfaces on GFX12+.
* Such buffers cannot be safely accessed over P2P due to device-local