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| author | Oak Zeng <Oak.Zeng@amd.com> | 2020-09-18 06:53:54 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-03-24 05:58:44 +0300 |
| commit | a2902c09c51db02eeffd77485c1340fdf4536af5 (patch) | |
| tree | 99ad3e0317710426fb73d72913d799502914d20f /drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | |
| parent | 7b454b3a34335381cb660864eb1e11077847c5db (diff) | |
| download | linux-a2902c09c51db02eeffd77485c1340fdf4536af5.tar.xz | |
drm/amdgpu: Add function to allocate and fill PDB0
Add functions to allocate PDB0, map it for CPU access,
and fill it.
Those functions are only used for 2-level vmid0 page
table construction
Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h index d5312b8e6abf..d5f3825cd479 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h @@ -247,6 +247,9 @@ struct amdgpu_gmc { uint32_t vmid0_page_table_block_size; uint32_t vmid0_page_table_depth; + struct amdgpu_bo *pdb0_bo; + /* CPU kmapped address of pdb0*/ + void *ptr_pdb0; }; #define amdgpu_gmc_flush_gpu_tlb(adev, vmid, vmhub, type) ((adev)->gmc.gmc_funcs->flush_gpu_tlb((adev), (vmid), (vmhub), (type))) @@ -288,6 +291,7 @@ static inline uint64_t amdgpu_gmc_sign_extend(uint64_t addr) return addr; } +int amdgpu_gmc_pdb0_alloc(struct amdgpu_device *adev); void amdgpu_gmc_get_pde_for_bo(struct amdgpu_bo *bo, int level, uint64_t *addr, uint64_t *flags); int amdgpu_gmc_set_pte_pde(struct amdgpu_device *adev, void *cpu_pt_addr, @@ -317,4 +321,5 @@ amdgpu_gmc_set_vm_fault_masks(struct amdgpu_device *adev, int hub_type, void amdgpu_gmc_get_vbios_allocations(struct amdgpu_device *adev); +void amdgpu_gmc_init_pdb0(struct amdgpu_device *adev); #endif |