drm/ttm: move ttm_tt_create into ttm_tt.c v2
Rename ttm_bo_add_ttm to ttm_tt_create and move it into ttm_tt.c.
v2: separate the cleanup.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index f93cd10..917942d 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -48,6 +48,52 @@
#endif
/**
+ * Allocates a ttm structure for the given BO.
+ */
+int ttm_tt_create(struct ttm_buffer_object *bo, bool zero_alloc)
+{
+ struct ttm_bo_device *bdev = bo->bdev;
+ int ret = 0;
+ uint32_t page_flags = 0;
+
+ reservation_object_assert_held(bo->resv);
+ bo->ttm = NULL;
+
+ if (bdev->need_dma32)
+ page_flags |= TTM_PAGE_FLAG_DMA32;
+
+ if (bdev->no_retry)
+ page_flags |= TTM_PAGE_FLAG_NO_RETRY;
+
+ switch (bo->type) {
+ case ttm_bo_type_device:
+ if (zero_alloc)
+ page_flags |= TTM_PAGE_FLAG_ZERO_ALLOC;
+ case ttm_bo_type_kernel:
+ bo->ttm = bdev->driver->ttm_tt_create(bdev, bo->num_pages << PAGE_SHIFT,
+ page_flags);
+ if (unlikely(bo->ttm == NULL))
+ ret = -ENOMEM;
+ break;
+ case ttm_bo_type_sg:
+ bo->ttm = bdev->driver->ttm_tt_create(bdev, bo->num_pages << PAGE_SHIFT,
+ page_flags | TTM_PAGE_FLAG_SG);
+ if (unlikely(bo->ttm == NULL)) {
+ ret = -ENOMEM;
+ break;
+ }
+ bo->ttm->sg = bo->sg;
+ break;
+ default:
+ pr_err("Illegal buffer object type\n");
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+/**
* Allocates storage for pointers to the pages that back the ttm.
*/
static int ttm_tt_alloc_page_directory(struct ttm_tt *ttm)