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| author | Philip Yang <[email protected]> | 2021-12-07 02:10:52 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2021-12-13 21:33:16 +0000 |
| commit | 4a74c38cd67b3e74a1dacc76c7ac5c276bfdeab5 (patch) | |
| tree | 204607b4e431e064b479e76e890f95e8de225c6d /drivers/gpu/drm/amd/amdgpu/amdgpu.h | |
| parent | Documentation/gpu: Add amdgpu and dc glossary (diff) | |
| download | kernel-4a74c38cd67b3e74a1dacc76c7ac5c276bfdeab5.tar.gz kernel-4a74c38cd67b3e74a1dacc76c7ac5c276bfdeab5.zip | |
drm/amdgpu: Detect if amdgpu in IOMMU direct map mode
If host and amdgpu IOMMU is not enabled or IOMMU is pass through mode,
set adev->ram_is_direct_mapped flag which will be used to optimize
memory usage for multi GPU mappings.
Signed-off-by: Philip Yang <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Reviewed-by: Felix Kuehling <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 89278f17a70b..e701dedce344 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1097,6 +1097,8 @@ struct amdgpu_device { struct amdgpu_reset_control *reset_cntl; uint32_t ip_versions[MAX_HWIP][HWIP_MAX_INSTANCE]; + + bool ram_is_direct_mapped; }; static inline struct amdgpu_device *drm_to_adev(struct drm_device *ddev) |