+ CGS_FUNC_ADEV;
+ uint16_t flags = 0;
+ int ret = 0;
+ uint32_t domain = 0;
+ struct amdgpu_bo *obj;
+ struct ttm_placement placement;
+ struct ttm_place place;
+
+ if (min_offset > max_offset) {
+ BUG_ON(1);
+ return -EINVAL;
+ }
+
+ /* fail if the alignment is not a power of 2 */
+ if (((align != 1) && (align & (align - 1)))
+ || size == 0 || align == 0)
+ return -EINVAL;
+
+
+ switch(type) {
+ case CGS_GPU_MEM_TYPE__VISIBLE_CONTIG_FB:
+ case CGS_GPU_MEM_TYPE__VISIBLE_FB:
+ flags = AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
+ domain = AMDGPU_GEM_DOMAIN_VRAM;
+ if (max_offset > adev->mc.real_vram_size)
+ return -EINVAL;
+ place.fpfn = min_offset >> PAGE_SHIFT;
+ place.lpfn = max_offset >> PAGE_SHIFT;
+ place.flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED |
+ TTM_PL_FLAG_VRAM;
+ break;
+ case CGS_GPU_MEM_TYPE__INVISIBLE_CONTIG_FB:
+ case CGS_GPU_MEM_TYPE__INVISIBLE_FB:
+ flags = AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
+ domain = AMDGPU_GEM_DOMAIN_VRAM;
+ if (adev->mc.visible_vram_size < adev->mc.real_vram_size) {
+ place.fpfn =
+ max(min_offset, adev->mc.visible_vram_size) >> PAGE_SHIFT;
+ place.lpfn =
+ min(max_offset, adev->mc.real_vram_size) >> PAGE_SHIFT;
+ place.flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED |
+ TTM_PL_FLAG_VRAM;
+ }
+
+ break;
+ case CGS_GPU_MEM_TYPE__GART_CACHEABLE:
+ domain = AMDGPU_GEM_DOMAIN_GTT;
+ place.fpfn = min_offset >> PAGE_SHIFT;
+ place.lpfn = max_offset >> PAGE_SHIFT;
+ place.flags = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_TT;
+ break;
+ case CGS_GPU_MEM_TYPE__GART_WRITECOMBINE:
+ flags = AMDGPU_GEM_CREATE_CPU_GTT_USWC;
+ domain = AMDGPU_GEM_DOMAIN_GTT;
+ place.fpfn = min_offset >> PAGE_SHIFT;
+ place.lpfn = max_offset >> PAGE_SHIFT;
+ place.flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_TT |
+ TTM_PL_FLAG_UNCACHED;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+
+ *handle = 0;
+
+ placement.placement = &place;
+ placement.num_placement = 1;
+ placement.busy_placement = &place;
+ placement.num_busy_placement = 1;
+
+ ret = amdgpu_bo_create_restricted(adev, size, PAGE_SIZE,
+ true, domain, flags,
+ NULL, &placement, &obj);
+ if (ret) {
+ DRM_ERROR("(%d) bo create failed\n", ret);
+ return ret;
+ }
+ *handle = (cgs_handle_t)obj;
+
+ return ret;