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, 0 insertions, 2 deletions

diff --git a/drivers/gpu/drm/nouveau/nv40_graph.c b/drivers/gpu/drm/nouveau/nv40_graph.c
index 65b13b54c5ae..2608c34eca82 100644
--- a/drivers/gpu/drm/nouveau/nv40_graph.c
+++ b/drivers/gpu/drm/nouveau/nv40_graph.c
@@ -67,7 +67,6 @@ nv40_graph_create_context(struct nouveau_channel *chan)
                 return ret;
 
         /* Initialise default context values */
-        dev_priv->engine.instmem.prepare_access(dev, true);
         if (!pgraph->ctxprog) {
                 struct nouveau_grctx ctx = {};
 
@@ -80,7 +79,6 @@ nv40_graph_create_context(struct nouveau_channel *chan)
         }
         nv_wo32(dev, chan->ramin_grctx->gpuobj, 0,
                      chan->ramin_grctx->gpuobj->im_pramin->start);
-        dev_priv->engine.instmem.finish_access(dev);
         return 0;
 }