diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c index f7d22c44034d..5e6b90c6794f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c @@ -42,13 +42,17 @@ struct amdgpu_gtt_mgr { static int amdgpu_gtt_mgr_init(struct ttm_mem_type_manager *man, unsigned long p_size) { + struct amdgpu_device *adev = amdgpu_ttm_adev(man->bdev); struct amdgpu_gtt_mgr *mgr; + uint64_t start, size; mgr = kzalloc(sizeof(*mgr), GFP_KERNEL); if (!mgr) return -ENOMEM; - drm_mm_init(&mgr->mm, 0, p_size); + start = AMDGPU_GTT_MAX_TRANSFER_SIZE * AMDGPU_GTT_NUM_TRANSFER_WINDOWS; + size = (adev->mc.gart_size >> PAGE_SHIFT) - start; + drm_mm_init(&mgr->mm, start, size); spin_lock_init(&mgr->lock); mgr->available = p_size; man->priv = mgr; @@ -81,6 +85,20 @@ static int amdgpu_gtt_mgr_fini(struct ttm_mem_type_manager *man) } /** + * amdgpu_gtt_mgr_is_allocated - Check if mem has address space + * + * @mem: the mem object to check + * + * Check if a mem object has already address space allocated. + */ +bool amdgpu_gtt_mgr_is_allocated(struct ttm_mem_reg *mem) +{ + struct drm_mm_node *node = mem->mm_node; + + return (node->start != AMDGPU_BO_INVALID_OFFSET); +} + +/** * amdgpu_gtt_mgr_alloc - allocate new ranges * * @man: TTM memory type manager @@ -95,13 +113,14 @@ int amdgpu_gtt_mgr_alloc(struct ttm_mem_type_manager *man, const struct ttm_place *place, struct ttm_mem_reg *mem) { + struct amdgpu_device *adev = amdgpu_ttm_adev(man->bdev); struct amdgpu_gtt_mgr *mgr = man->priv; struct drm_mm_node *node = mem->mm_node; enum drm_mm_insert_mode mode; unsigned long fpfn, lpfn; int r; - if (node->start != AMDGPU_BO_INVALID_OFFSET) + if (amdgpu_gtt_mgr_is_allocated(mem)) return 0; if (place) @@ -112,7 +131,7 @@ int amdgpu_gtt_mgr_alloc(struct ttm_mem_type_manager *man, if (place && place->lpfn) lpfn = place->lpfn; else - lpfn = man->size; + lpfn = adev->gart.num_cpu_pages; mode = DRM_MM_INSERT_BEST; if (place && place->flags & TTM_PL_FLAG_TOPDOWN) |