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| author | Yong Zhao <Yong.Zhao@amd.com> | 2017-07-27 19:48:22 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-08-15 21:45:58 +0300 |
| commit | 51ac7eec620b8ec705955ad2c845a5b5fed6b40f (patch) | |
| tree | db1de1243647e0e728a331f0e38b12da9a6223f8 /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | |
| parent | 2046d46db9166bddc84778f0b3477f6d1e9068ea (diff) | |
| download | linux-51ac7eec620b8ec705955ad2c845a5b5fed6b40f.tar.xz | |
drm/amdgpu: Support IOMMU on Raven
We achieved that by setting S(SYSTEM) and P(PDE as PTE) bit to 1 for
PDEs and setting S bit to 1 for PTEs when the corresponding addresses
are not occupied by gpu driver allocated buffers.
Signed-off-by: Yong Zhao <Yong.Zhao@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_vm.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h index 34d9174ebff2..217ecba8f4cc 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h @@ -146,6 +146,9 @@ struct amdgpu_vm { /* Flag to indicate if VM tables are updated by CPU or GPU (SDMA) */ bool use_cpu_for_update; + + /* Flag to indicate ATS support from PTE for GFX9 */ + bool pte_support_ats; }; struct amdgpu_vm_id { |