Commit 9a89a721 authored by Xℹ Ruoyao's avatar Xℹ Ruoyao Committed by Alex Deucher

drm/amdgpu: check alignment on CPU page for bo map

The page table of AMDGPU requires an alignment to CPU page so we should
check ioctl parameters for it.  Return -EINVAL if some parameter is
unaligned to CPU page, instead of corrupt the page table sliently.
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarXi Ruoyao <xry111@mengyan1223.wang>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent f4d3da72
......@@ -2198,8 +2198,8 @@ int amdgpu_vm_bo_map(struct amdgpu_device *adev,
uint64_t eaddr;
/* validate the parameters */
if (saddr & AMDGPU_GPU_PAGE_MASK || offset & AMDGPU_GPU_PAGE_MASK ||
size == 0 || size & AMDGPU_GPU_PAGE_MASK)
if (saddr & ~PAGE_MASK || offset & ~PAGE_MASK ||
size == 0 || size & ~PAGE_MASK)
return -EINVAL;
/* make sure object fit at this offset */
......@@ -2264,8 +2264,8 @@ int amdgpu_vm_bo_replace_map(struct amdgpu_device *adev,
int r;
/* validate the parameters */
if (saddr & AMDGPU_GPU_PAGE_MASK || offset & AMDGPU_GPU_PAGE_MASK ||
size == 0 || size & AMDGPU_GPU_PAGE_MASK)
if (saddr & ~PAGE_MASK || offset & ~PAGE_MASK ||
size == 0 || size & ~PAGE_MASK)
return -EINVAL;
/* make sure object fit at this offset */
......
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