diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2023-07-14 15:11:26 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-08-07 17:14:06 -0400 |
| commit | dc3499c71d3618130d9c6675e4de1e3562c17125 (patch) | |
| tree | e640d64e12963c4734daf0f62941f48a4d609ed3 /drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | |
| parent | 05c899eacc0412bae0581add19c4062db8bdffda (diff) | |
drm/amdgpu: accommodate DOMAIN/PL_DOORBELL
This patch adds changes:
- to accommodate the new GEM domain for DOORBELLs
- to accommodate the new TTM PL for DOORBELLs
in order to manage doorbell pages as GEM object.
V2: Addressed reviwe comments from Christian
- drop the doorbell changes for pinning/unpinning
- drop the doorbell changes for dma-buf map
- drop the doorbell changes for sgt
- no need to handle TTM_PL_FLAG_CONTIGUOUS for doorbell
- add caching type for doorbell
V3: - Removed unrelated empty line (Christian)
- Add PL_DOORBELL in mem_type_to_domain() as well (Alex)
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian Koenig <christian.koenig@amd.com>
Reviewed-by: Christian Koenig <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Shashank Sharma <shashank.sharma@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 0534ab716809..1703d216c88c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -127,6 +127,7 @@ static void amdgpu_evict_flags(struct ttm_buffer_object *bo, case AMDGPU_PL_GDS: case AMDGPU_PL_GWS: case AMDGPU_PL_OA: + case AMDGPU_PL_DOORBELL: placement->num_placement = 0; placement->num_busy_placement = 0; return; @@ -496,9 +497,11 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo, bool evict, if (old_mem->mem_type == AMDGPU_PL_GDS || old_mem->mem_type == AMDGPU_PL_GWS || old_mem->mem_type == AMDGPU_PL_OA || + old_mem->mem_type == AMDGPU_PL_DOORBELL || new_mem->mem_type == AMDGPU_PL_GDS || new_mem->mem_type == AMDGPU_PL_GWS || - new_mem->mem_type == AMDGPU_PL_OA) { + new_mem->mem_type == AMDGPU_PL_OA || + new_mem->mem_type == AMDGPU_PL_DOORBELL) { /* Nothing to save here */ ttm_bo_move_null(bo, new_mem); goto out; @@ -582,6 +585,12 @@ static int amdgpu_ttm_io_mem_reserve(struct ttm_device *bdev, mem->bus.offset += adev->gmc.aper_base; mem->bus.is_iomem = true; break; + case AMDGPU_PL_DOORBELL: + mem->bus.offset = mem->start << PAGE_SHIFT; + mem->bus.offset += adev->doorbell.base; + mem->bus.is_iomem = true; + mem->bus.caching = ttm_uncached; + break; default: return -EINVAL; } @@ -596,6 +605,10 @@ static unsigned long amdgpu_ttm_io_mem_pfn(struct ttm_buffer_object *bo, amdgpu_res_first(bo->resource, (u64)page_offset << PAGE_SHIFT, 0, &cursor); + + if (bo->resource->mem_type == AMDGPU_PL_DOORBELL) + return ((uint64_t)(adev->doorbell.base + cursor.start)) >> PAGE_SHIFT; + return (adev->gmc.aper_base + cursor.start) >> PAGE_SHIFT; } @@ -1305,6 +1318,7 @@ uint64_t amdgpu_ttm_tt_pde_flags(struct ttm_tt *ttm, struct ttm_resource *mem) flags |= AMDGPU_PTE_VALID; if (mem && (mem->mem_type == TTM_PL_TT || + mem->mem_type == AMDGPU_PL_DOORBELL || mem->mem_type == AMDGPU_PL_PREEMPT)) { flags |= AMDGPU_PTE_SYSTEM; |