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| author | Christian König <christian.koenig@amd.com> | 2019-12-18 16:49:35 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-02-05 07:30:39 +0300 |
| commit | 55cdd4e9b94846b8bc52ebf86eb1cb62f04f06da (patch) | |
| tree | 506714168f0a543c11c14554383ab566e2275878 /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | |
| parent | ef48d4b39e502bd142e0deb0d9f9a0353876de91 (diff) | |
| download | linux-55cdd4e9b94846b8bc52ebf86eb1cb62f04f06da.tar.xz | |
drm/amdgpu: drop unnecessary restriction for huge root PDEs
The root PD can also contain huge PDEs.
Signed-off-by: Christian König <christian.koenig@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_vm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 25 |
1 files changed, 5 insertions, 20 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index d16231d6a790..010561ed03da 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -120,23 +120,17 @@ static inline void amdgpu_vm_eviction_unlock(struct amdgpu_vm *vm) static unsigned amdgpu_vm_level_shift(struct amdgpu_device *adev, unsigned level) { - unsigned shift = 0xff; - switch (level) { case AMDGPU_VM_PDB2: case AMDGPU_VM_PDB1: case AMDGPU_VM_PDB0: - shift = 9 * (AMDGPU_VM_PDB0 - level) + + return 9 * (AMDGPU_VM_PDB0 - level) + adev->vm_manager.block_size; - break; case AMDGPU_VM_PTB: - shift = 0; - break; + return 0; default: - dev_err(adev->dev, "the level%d isn't supported.\n", level); + return ~0; } - - return shift; } /** @@ -1458,13 +1452,6 @@ static int amdgpu_vm_update_ptes(struct amdgpu_vm_update_params *params, pt = cursor.entry->base.bo; - /* The root level can't be a huge page */ - if (cursor.level == adev->vm_manager.root_level) { - if (!amdgpu_vm_pt_descendant(adev, &cursor)) - return -ENOENT; - continue; - } - shift = amdgpu_vm_level_shift(adev, cursor.level); parent_shift = amdgpu_vm_level_shift(adev, cursor.level - 1); if (adev->asic_type < CHIP_VEGA10 && @@ -1483,11 +1470,9 @@ static int amdgpu_vm_update_ptes(struct amdgpu_vm_update_params *params, if (!amdgpu_vm_pt_descendant(adev, &cursor)) return -ENOENT; continue; - } else if (frag >= parent_shift && - cursor.level - 1 != adev->vm_manager.root_level) { + } else if (frag >= parent_shift) { /* If the fragment size is even larger than the parent - * shift we should go up one level and check it again - * unless one level up is the root level. + * shift we should go up one level and check it again. */ if (!amdgpu_vm_pt_ancestor(&cursor)) return -ENOENT; |