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author | Maxime Ripard <maxime@cerno.tech> | 2021-10-25 16:27:56 +0300 |
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committer | Maxime Ripard <maxime@cerno.tech> | 2021-10-25 16:27:56 +0300 |
commit | 736638246ec215f999dd132334d2d7c49bcb85c7 (patch) | |
tree | 6c79e96f8dccb0514d918cf279915695ffb3aeea /drivers/gpu/drm/ttm | |
parent | 525bbf72dbe0004a009dc39b239dec74e8007f6f (diff) | |
parent | 6f2f7c83303d2227f47551423e507d77d9ea01c7 (diff) | |
download | linux-736638246ec215f999dd132334d2d7c49bcb85c7.tar.xz |
Merge drm/drm-next into drm-misc-next
drm-misc-next hasn't been updated in a while and I need a post -rc2
state to merge some vc4 patches.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Diffstat (limited to 'drivers/gpu/drm/ttm')
-rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo_util.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c index 82af095f6b81..a342d701c91c 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -78,22 +78,21 @@ void ttm_mem_io_free(struct ttm_device *bdev, /** * ttm_move_memcpy - Helper to perform a memcpy ttm move operation. - * @bo: The struct ttm_buffer_object. - * @new_mem: The struct ttm_resource we're moving to (copy destination). - * @new_iter: A struct ttm_kmap_iter representing the destination resource. + * @clear: Whether to clear rather than copy. + * @num_pages: Number of pages of the operation. + * @dst_iter: A struct ttm_kmap_iter representing the destination resource. * @src_iter: A struct ttm_kmap_iter representing the source resource. * * This function is intended to be able to move out async under a * dma-fence if desired. */ -void ttm_move_memcpy(struct ttm_buffer_object *bo, +void ttm_move_memcpy(bool clear, u32 num_pages, struct ttm_kmap_iter *dst_iter, struct ttm_kmap_iter *src_iter) { const struct ttm_kmap_iter_ops *dst_ops = dst_iter->ops; const struct ttm_kmap_iter_ops *src_ops = src_iter->ops; - struct ttm_tt *ttm = bo->ttm; struct dma_buf_map src_map, dst_map; pgoff_t i; @@ -102,10 +101,7 @@ void ttm_move_memcpy(struct ttm_buffer_object *bo, return; /* Don't move nonexistent data. Clear destination instead. */ - if (src_ops->maps_tt && (!ttm || !ttm_tt_is_populated(ttm))) { - if (ttm && !(ttm->page_flags & TTM_TT_FLAG_ZERO_ALLOC)) - return; - + if (clear) { for (i = 0; i < num_pages; ++i) { dst_ops->map_local(dst_iter, &dst_map, i); if (dst_map.is_iomem) @@ -148,6 +144,7 @@ int ttm_bo_move_memcpy(struct ttm_buffer_object *bo, struct ttm_kmap_iter_linear_io io; } _dst_iter, _src_iter; struct ttm_kmap_iter *dst_iter, *src_iter; + bool clear; int ret = 0; if (ttm && ((ttm->page_flags & TTM_TT_FLAG_SWAPPED) || @@ -171,7 +168,9 @@ int ttm_bo_move_memcpy(struct ttm_buffer_object *bo, goto out_src_iter; } - ttm_move_memcpy(bo, dst_mem->num_pages, dst_iter, src_iter); + clear = src_iter->ops->maps_tt && (!ttm || !ttm_tt_is_populated(ttm)); + if (!(clear && ttm && !(ttm->page_flags & TTM_TT_FLAG_ZERO_ALLOC))) + ttm_move_memcpy(clear, dst_mem->num_pages, dst_iter, src_iter); if (!src_iter->ops->maps_tt) ttm_kmap_iter_linear_io_fini(&_src_iter.io, bdev, src_mem); |