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.
Signed-off-by: Xi Ruoyao <xry...@mengyan1223.wang>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index dc4d6ae71476..a01c158bc29f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -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 */
--
2.31.1
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