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Commit 11ca1b66 authored by Gerd Hoffmann's avatar Gerd Hoffmann
Browse files

drm/qxl: use ttm_tt 



qxl device will not dma, so we don't need ttm_dma_tt.  Go use ttm_tt
instead, to avoid wasting resources (swiotlb bounce buffers for
example).

Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
Acked-by: default avatarNoralf Trønnes <noralf@tronnes.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20190129082541.1392-1-kraxel@redhat.com
parent 1ff49481

drivers/gpu/drm/qxl/qxl_ttm.c

+5 −5
Original line number Diff line number Diff line
@@ -204,7 +204,7 @@ static void qxl_ttm_io_mem_free(struct ttm_bo_device *bdev, 
 * TTM backend functions.

 */

struct qxl_ttm_tt {

	struct ttm_dma_tt		ttm;

	struct ttm_tt		        ttm;

	struct qxl_device		*qdev;

	u64				offset;

};
@@ -233,7 +233,7 @@ static void qxl_ttm_backend_destroy(struct ttm_tt *ttm) 
{

	struct qxl_ttm_tt *gtt = (void *)ttm;



	ttm_dma_tt_fini(&gtt->ttm);

	ttm_tt_fini(&gtt->ttm);

	kfree(gtt);

}
@@ -253,13 +253,13 @@ static struct ttm_tt *qxl_ttm_tt_create(struct ttm_buffer_object *bo, 
	gtt = kzalloc(sizeof(struct qxl_ttm_tt), GFP_KERNEL);

	if (gtt == NULL)

		return NULL;

	gtt->ttm.ttm.func = &qxl_backend_func;

	gtt->ttm.func = &qxl_backend_func;

	gtt->qdev = qdev;

	if (ttm_dma_tt_init(&gtt->ttm, bo, page_flags)) {

	if (ttm_tt_init(&gtt->ttm, bo, page_flags)) {

		kfree(gtt);

		return NULL;

	}

	return &gtt->ttm.ttm;

	return &gtt->ttm;

}



static void qxl_move_null(struct ttm_buffer_object *bo,