drm/nouveau: add instmem flush() hook

This removes the previous prepare_access() and finish_access() hooks, and
replaces it with a much simpler flush() hook.

All the chipset-specific code before nv50 has its use removed completely,
as it's not required there at all.

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

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c
index 711128c42de..6a293c818b6 100644
--- a/drivers/gpu/drm/nouveau/nv50_display.c
+++ b/drivers/gpu/drm/nouveau/nv50_display.c
@@ -71,14 +71,13 @@ nv50_evo_dmaobj_new(struct nouveau_channel *evo, uint32_t class, uint32_t name,
                 return ret;
         }
 
-        dev_priv->engine.instmem.prepare_access(dev, true);
         nv_wo32(dev, obj, 0, (tile_flags << 22) | (magic_flags << 16) | class);
         nv_wo32(dev, obj, 1, limit);
         nv_wo32(dev, obj, 2, offset);
         nv_wo32(dev, obj, 3, 0x00000000);
         nv_wo32(dev, obj, 4, 0x00000000);
         nv_wo32(dev, obj, 5, 0x00010000);
-        dev_priv->engine.instmem.finish_access(dev);
+        dev_priv->engine.instmem.flush(dev);
 
         return 0;
 }