nv50,nvc0: clean up flushes

2 files changed, 11 insertions, 15 deletions

diff --git a/src/gallium/drivers/nv50/nv50_context.c b/src/gallium/drivers/nv50/nv50_context.c
index 204e9bef11..930cee7c1e 100644
--- a/src/gallium/drivers/nv50/nv50_context.c
+++ b/src/gallium/drivers/nv50/nv50_context.c
@@ -33,22 +33,17 @@ static void
 nv50_flush(struct pipe_context *pipe,
            struct pipe_fence_handle **fence)
 {
-   struct nv50_context *nv50 = nv50_context(pipe);
-   struct nouveau_channel *chan = nv50->screen->base.channel;
-
-   /* XXX This flag wasn't set by the state tracker anyway. */
-   /*if (flags & PIPE_FLUSH_TEXTURE_CACHE) {
-      BEGIN_RING(chan, RING_3D_(NV50_GRAPH_WAIT_FOR_IDLE), 1);
-      OUT_RING  (chan, 0);
-      BEGIN_RING(chan, RING_3D(TEX_CACHE_CTL), 1);
-      OUT_RING  (chan, 0x20);
-   }*/
+   struct nouveau_screen *screen = &nv50_context(pipe)->screen->base;
 
    if (fence)
-      nouveau_fence_ref(nv50->screen->base.fence.current,
-                        (struct nouveau_fence **)fence);
+      nouveau_fence_ref(screen->fence.current, (struct nouveau_fence **)fence);
+
+   /* Try to emit before firing to avoid having to flush again right after
+    * in case we have to wait on this fence.
+    */
+   nouveau_fence_emit(screen->fence.current);
 
-   FIRE_RING(chan);
+   FIRE_RING(screen->channel);
 }
 
 void
diff --git a/src/gallium/drivers/nv50/nv50_state_validate.c b/src/gallium/drivers/nv50/nv50_state_validate.c
index bf46296e7e..4ae58b156b 100644
--- a/src/gallium/drivers/nv50/nv50_state_validate.c
+++ b/src/gallium/drivers/nv50/nv50_state_validate.c
@@ -43,8 +43,9 @@ nv50_validate_fb(struct nv50_context *nv50)
       mt->base.status |= NOUVEAU_BUFFER_STATUS_GPU_WRITING;
       mt->base.status &= NOUVEAU_BUFFER_STATUS_GPU_READING;
 
+      /* only register for writing, otherwise we'd always serialize here */
       nv50_bufctx_add_resident(nv50, NV50_BUFCTX_FRAME, &mt->base,
-                               NOUVEAU_BO_VRAM | NOUVEAU_BO_RDWR);
+                               NOUVEAU_BO_VRAM | NOUVEAU_BO_WR);
    }
 
    if (fb->zsbuf) {
@@ -74,7 +75,7 @@ nv50_validate_fb(struct nv50_context *nv50)
       mt->base.status &= NOUVEAU_BUFFER_STATUS_GPU_READING;
 
       nv50_bufctx_add_resident(nv50, NV50_BUFCTX_FRAME, &mt->base,
-                               NOUVEAU_BO_VRAM | NOUVEAU_BO_RDWR);
+                               NOUVEAU_BO_VRAM | NOUVEAU_BO_WR);
    } else {
       BEGIN_RING(chan, RING_3D(ZETA_ENABLE), 1);
       OUT_RING  (chan, 0);