[PATCH 0/2] ensure alignment on CPU page for bo mapping

Xℹ Ruoyao xry111 at mengyan1223.wang
Tue Mar 30 15:33:32 UTC 2021


In AMDGPU driver, the bo mapping should always align to CPU page or
the page table is corrupted.

The first patch is cherry-picked from Loongson community, which sets a
suitable dev_info.gart_page_size so Mesa will handle the alignment
correctly.

The second patch is added to ensure an ioctl with unaligned parameter to
be rejected -EINVAL, instead of causing page table corruption.

The patches should be applied for drm-next.

Huacai Chen (1):
  drm/amdgpu: Set a suitable dev_info.gart_page_size

Xℹ Ruoyao (1):
  drm/amdgpu: check alignment on CPU page for bo map

 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 4 ++--
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c  | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)


base-commit: a0c8b193bfe81cc8e9c7c162bb8d777ba12596f0
-- 
2.31.1



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