diff options
| author | Christian König <christian.koenig@amd.com> | 2017-08-03 21:30:50 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-08-17 22:46:06 +0300 |
| commit | 4ab4016aaf82153d144fa678cd6b4b5b6f25ed70 (patch) | |
| tree | 515357553266566d7101e2560e868dd1a559eb5a /drivers/gpu/drm/amd | |
| parent | ec5207c9f1cf42be826b9e3b63fb9b7463ed7fab (diff) | |
| download | linux-4ab4016aaf82153d144fa678cd6b4b5b6f25ed70.tar.xz | |
drm/amdgpu: drop the extra VM huge page flag v2
Just add the flags to the addr field as well.
v2: add some more comments that the flag is for huge pages.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 18 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 1 |
2 files changed, 9 insertions, 10 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 420026bc2514..14012e80fa27 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -331,7 +331,6 @@ static int amdgpu_vm_alloc_levels(struct amdgpu_device *adev, entry->bo = pt; entry->addr = 0; - entry->huge_page = false; } if (level < adev->vm_manager.num_level) { @@ -1083,11 +1082,12 @@ static int amdgpu_vm_update_level(struct amdgpu_device *adev, pt = amdgpu_bo_gpu_offset(bo); pt = amdgpu_gart_get_vm_pde(adev, pt); - if (parent->entries[pt_idx].addr == pt || - parent->entries[pt_idx].huge_page) + /* Don't update huge pages here */ + if ((parent->entries[pt_idx].addr & AMDGPU_PDE_PTE) || + parent->entries[pt_idx].addr == (pt | AMDGPU_PTE_VALID)) continue; - parent->entries[pt_idx].addr = pt; + parent->entries[pt_idx].addr = pt | AMDGPU_PTE_VALID; pde = pd_addr + pt_idx * 8; if (((last_pde + 8 * count) != pde) || @@ -1284,15 +1284,14 @@ static void amdgpu_vm_handle_huge_pages(struct amdgpu_pte_update_params *p, dst = amdgpu_gart_get_vm_pde(p->adev, dst); flags = AMDGPU_PTE_VALID; } else { + /* Set the huge page flag to stop scanning at this PDE */ flags |= AMDGPU_PDE_PTE; } - if (entry->addr == dst && - entry->huge_page == !!(flags & AMDGPU_PDE_PTE)) + if (entry->addr == (dst | flags)) return; - entry->addr = dst; - entry->huge_page = !!(flags & AMDGPU_PDE_PTE); + entry->addr = (dst | flags); if (use_cpu_update) { pd_addr = (unsigned long)amdgpu_bo_kptr(parent->bo); @@ -1351,7 +1350,8 @@ static int amdgpu_vm_update_ptes(struct amdgpu_pte_update_params *params, amdgpu_vm_handle_huge_pages(params, entry, parent, nptes, dst, flags); - if (entry->huge_page) + /* We don't need to update PTEs for huge pages */ + if (entry->addr & AMDGPU_PDE_PTE) continue; pt = entry->bo; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h index 9c309c5a86f1..f12c12fec3c0 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h @@ -103,7 +103,6 @@ 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; |