Mesa (master): nvc0: always put all tfb bufs into bufctx

[Ilia Mirkin]

Module: Mesa
Branch: master
Commit: 9fcbf515b431a92e0289f234ab77a796cf2a5612
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=9fcbf515b431a92e0289f234ab77a796cf2a5612

Author: Ilia Mirkin <imirkin at alum.mit.edu>
Date:   Sun Jun 21 15:00:16 2015 -0400

nvc0: always put all tfb bufs into bufctx

Since we clear the TFB bufctx binding point above, we need to put all of
the active tfb's back in, even if they haven't changed since last time.
Otherwise the tfb may get moved into sysmem and the underlying mapping
will generate write errors.

Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
Cc: "10.5 10.6" <mesa-stable at lists.freedesktop.org>

---

 src/gallium/drivers/nouveau/nvc0/nvc0_shader_state.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_shader_state.c b/src/gallium/drivers/nouveau/nvc0/nvc0_shader_state.c
index c9b5a5c..e084278 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_shader_state.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_shader_state.c
@@ -262,11 +262,13 @@ nvc0_tfb_validate(struct nvc0_context *nvc0)
       if (tfb)
          targ->stride = tfb->stride[b];
 
+      buf = nv04_resource(targ->pipe.buffer);
+
+      BCTX_REFN(nvc0->bufctx_3d, TFB, buf, WR);
+
       if (!(nvc0->tfbbuf_dirty & (1 << b)))
          continue;
 
-      buf = nv04_resource(targ->pipe.buffer);
-
       if (!targ->clean)
          nvc0_query_fifo_wait(push, targ->pq);
       BEGIN_NVC0(push, NVC0_3D(TFB_BUFFER_ENABLE(b)), 5);
@@ -280,7 +282,6 @@ nvc0_tfb_validate(struct nvc0_context *nvc0)
          PUSH_DATA(push, 0); /* TFB_BUFFER_OFFSET */
          targ->clean = FALSE;
       }
-      BCTX_REFN(nvc0->bufctx_3d, TFB, buf, WR);
    }
    for (; b < 4; ++b)
       IMMED_NVC0(push, NVC0_3D(TFB_BUFFER_ENABLE(b)), 0);