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: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20190129082541.1392-1-kraxel@redhat.com

diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
index 36ea993..92f5db5 100644 (file)
--- a/drivers/gpu/drm/qxl/qxl_ttm.c
+++ b/drivers/gpu/drm/qxl/qxl_ttm.c
@@ -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,