drm/nouveau: introduce new gart type, and name _SGDMA more appropriately

In preparation for the addition of a new nv40 backend, we'll need to be
able to distinguish between a paged dma object and the on-chip GART.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 9821fcacc3d2..b36dc351f8eb 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -691,8 +691,9 @@ struct drm_nouveau_private {
         struct {
                 enum {
                         NOUVEAU_GART_NONE = 0,
-                        NOUVEAU_GART_AGP,
-                        NOUVEAU_GART_SGDMA
+                        NOUVEAU_GART_AGP,       /* AGP */
+                        NOUVEAU_GART_PDMA,      /* paged dma object */
+                        NOUVEAU_GART_HW         /* on-chip gart/vm */
                 } type;
                 uint64_t aper_base;
                 uint64_t aper_size;