[intel] Convert relocations to not be cleared out on buffer submit.

We have two consumers of relocations.  One is static state buffers, which
want the same relocation every time.  The other is the batchbuffer, which gets
thrown out immediately after submit.  This lets us reduce repeated computation
for static state buffers, and clean up the code by moving relocations nearer
to where the state buffer is computed.

1 files changed, 15 insertions, 17 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_vs_state.c b/src/mesa/drivers/dri/i965/brw_vs_state.c
index 22e32fe6a7f..573be01a2bb 100644
--- a/src/mesa/drivers/dri/i965/brw_vs_state.c
+++ b/src/mesa/drivers/dri/i965/brw_vs_state.c
@@ -76,6 +76,7 @@ static dri_bo *
 vs_unit_create_from_key(struct brw_context *brw, struct brw_vs_unit_key *key)
 {
    struct brw_vs_unit_state vs;
+   dri_bo *bo;
 
    memset(&vs, 0, sizeof(vs));
 
@@ -107,12 +108,20 @@ vs_unit_create_from_key(struct brw_context *brw, struct brw_vs_unit_key *key)
     */
    vs.vs6.vs_enable = 1;
 
-   brw->vs.thread0_delta = vs.thread0.grf_reg_count << 1;
-   return brw_upload_cache(&brw->cache, BRW_VS_UNIT,
-			   key, sizeof(*key),
-			   &brw->vs.prog_bo, 1,
-			   &vs, sizeof(vs),
-			   NULL, NULL);
+   bo = brw_upload_cache(&brw->cache, BRW_VS_UNIT,
+			 key, sizeof(*key),
+			 &brw->vs.prog_bo, 1,
+			 &vs, sizeof(vs),
+			 NULL, NULL);
+
+   /* Emit VS program relocation */
+   dri_emit_reloc(bo,
+		  DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ,
+		  vs.thread0.grf_reg_count << 1,
+		  offsetof(struct brw_vs_unit_state, thread0),
+		  brw->vs.prog_bo);
+
+   return bo;
 }
 
 static void upload_vs_unit( struct brw_context *brw )
@@ -131,16 +140,6 @@ static void upload_vs_unit( struct brw_context *brw )
    }
 }
 
-static void emit_reloc_vs_unit(struct brw_context *brw)
-{
-   /* Emit VS program relocation */
-   dri_emit_reloc(brw->vs.state_bo,
-		  DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ,
-		  brw->vs.thread0_delta,
-		  offsetof(struct brw_vs_unit_state, thread0),
-		  brw->vs.prog_bo);
-}
-
 const struct brw_tracked_state brw_vs_unit = {
    .dirty = {
       .mesa  = _NEW_TRANSFORM,
@@ -149,5 +148,4 @@ const struct brw_tracked_state brw_vs_unit = {
       .cache = CACHE_NEW_VS_PROG
    },
    .update = upload_vs_unit,
-   .emit_reloc = emit_reloc_vs_unit,
 };