diff options
| author | Xℹ Ruoyao <xry111@mengyan1223.wang> | 2021-03-30 23:33:34 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-04-09 16:50:00 -0400 |
| commit | 9a89a721b41b23c6da8f8a6dd0e382966a850dcf (patch) | |
| tree | 12ac97808cc47f388d90992c067e5eeb4c216fa3 /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | |
| parent | f4d3da72a76a9ce5f57bba64788931686a9dc333 (diff) | |
| download | linux-9a89a721b41b23c6da8f8a6dd0e382966a850dcf.tar.bz2 | |
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: Christian König <christian.koenig@amd.com>
Signed-off-by: Xi Ruoyao <xry111@mengyan1223.wang>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 8 |
1 files 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 91b3320ed65d..80d7f87b0419 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 */ |