diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2017-07-25 16:35:38 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-07-25 16:35:38 -0400 |
| commit | cf2f0a372049451eb824982b7fb26b1a15097821 (patch) | |
| tree | c768e35ef9cd0492d82ddc7d911d6a0676abe3de /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | |
| parent | 6be7adb37d9bd8af02e53feb72c35e9624165889 (diff) | |
drm/amdgpu: enable huge page handling in the VM v5
The hardware can use huge pages to map 2MB of address space with only one PDE.
v2: few cleanups and rebased
v3: skip PT updates if we are using the PDE
v4: rebased, added support for CPU based updates
v5: fix CPU based updates once more
v6: fix ndw estimation
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-and-tested-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_vm.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h index c4f5d1ff042e..34d9174ebff2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h @@ -70,6 +70,9 @@ struct amdgpu_bo_list_entry; /* TILED for VEGA10, reserved for older ASICs */ #define AMDGPU_PTE_PRT (1ULL << 51) +/* PDE is handled as PTE for VEGA10 */ +#define AMDGPU_PDE_PTE (1ULL << 54) + /* VEGA10 only */ #define AMDGPU_PTE_MTYPE(a) ((uint64_t)a << 57) #define AMDGPU_PTE_MTYPE_MASK AMDGPU_PTE_MTYPE(3ULL) @@ -100,6 +103,7 @@ struct amdgpu_bo_list_entry; struct amdgpu_vm_pt { struct amdgpu_bo *bo; uint64_t addr; + bool huge_page; /* array of page tables, one for each directory entry */ struct amdgpu_vm_pt *entries; |