diff options
| author | Madhav Chauhan <madhav.chauhan@amd.com> | 2020-10-16 18:03:07 +0530 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-10-23 15:33:48 -0400 |
| commit | df0e4831c3e8210783a73afc11ee40a2c8502c36 (patch) | |
| tree | 7ef4a4c09cc495bf97f60d2920034ebf2994bd3c /drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | |
| parent | 52f2e83e2fe5596862ed0830df1cb340e411cc74 (diff) | |
drm/amdgpu: don't map BO in reserved region
2MB area is reserved at top inside VM.
Suggested-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Madhav Chauhan <madhav.chauhan@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c index 5047989fe941..5b50860eece4 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c @@ -596,6 +596,7 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data, struct ww_acquire_ctx ticket; struct list_head list, duplicates; uint64_t va_flags; + uint64_t vm_size; int r = 0; if (args->va_address < AMDGPU_VA_RESERVED_SIZE) { @@ -616,6 +617,15 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data, args->va_address &= AMDGPU_GMC_HOLE_MASK; + vm_size = adev->vm_manager.max_pfn * AMDGPU_GPU_PAGE_SIZE; + vm_size -= AMDGPU_VA_RESERVED_SIZE; + if (args->va_address + args->map_size > vm_size) { + dev_dbg(&dev->pdev->dev, + "va_address 0x%llx is in top reserved area 0x%llx\n", + args->va_address + args->map_size, vm_size); + return -EINVAL; + } + if ((args->flags & ~valid_flags) && (args->flags & ~prt_flags)) { dev_dbg(&dev->pdev->dev, "invalid flags combination 0x%08X\n", args->flags); |