r300g: do not tell st that a buffer is referenced by hw

It saves a few libdrm calls and unnecessary flushes.

4 files changed, 12 insertions, 8 deletions

diff --git a/src/gallium/drivers/r300/r300_render.c b/src/gallium/drivers/r300/r300_render.c
index f6bc68c43a..26ff71c846 100644
--- a/src/gallium/drivers/r300/r300_render.c
+++ b/src/gallium/drivers/r300/r300_render.c
@@ -152,9 +152,9 @@ static boolean immd_is_good_idea(struct r300_context *r300,
         if (!checked[vbi]) {
             vbuf = &r300->vertex_buffer[vbi];
 
-            if (r300->context.is_resource_referenced(&r300->context,
-						     vbuf->buffer,
-						     0, 0)) {
+            if (r300->rws->is_buffer_referenced(r300->rws,
+                                                r300_buffer(vbuf->buffer)->buf,
+                                                R300_REF_CS | R300_REF_HW)) {
                 /* It's a very bad idea to map it... */
                 return FALSE;
             }
diff --git a/src/gallium/drivers/r300/r300_screen_buffer.c b/src/gallium/drivers/r300/r300_screen_buffer.c
index 739f723f16..c5c10af2a4 100644
--- a/src/gallium/drivers/r300/r300_screen_buffer.c
+++ b/src/gallium/drivers/r300/r300_screen_buffer.c
@@ -44,7 +44,7 @@ static unsigned r300_buffer_is_referenced(struct pipe_context *context,
     if (r300_buffer_is_user_buffer(buf))
  	return PIPE_UNREFERENCED;
 
-    if (r300->rws->is_buffer_referenced(r300->rws, rbuf->buf))
+    if (r300->rws->is_buffer_referenced(r300->rws, rbuf->buf, R300_REF_CS))
         return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
 
     return PIPE_UNREFERENCED;
diff --git a/src/gallium/drivers/r300/r300_texture.c b/src/gallium/drivers/r300/r300_texture.c
index a4a3f2166f..e795c8df0b 100644
--- a/src/gallium/drivers/r300/r300_texture.c
+++ b/src/gallium/drivers/r300/r300_texture.c
@@ -880,7 +880,7 @@ static unsigned r300_texture_is_referenced(struct pipe_context *context,
     struct r300_context *r300 = r300_context(context);
     struct r300_texture *rtex = (struct r300_texture *)texture;
 
-    if (r300->rws->is_buffer_referenced(r300->rws, rtex->buffer))
+    if (r300->rws->is_buffer_referenced(r300->rws, rtex->buffer, R300_REF_CS))
         return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
 
     return PIPE_UNREFERENCED;
diff --git a/src/gallium/drivers/r300/r300_winsys.h b/src/gallium/drivers/r300/r300_winsys.h
index 9c348d9115..2bd40176d1 100644
--- a/src/gallium/drivers/r300/r300_winsys.h
+++ b/src/gallium/drivers/r300/r300_winsys.h
@@ -42,6 +42,11 @@ enum r300_value_id {
     R300_VID_TEX3D_MIP_BUG,
 };
 
+enum r300_reference_domain { /* bitfield */
+    R300_REF_CS = 1,
+    R300_REF_HW = 2
+};
+
 struct r300_winsys_screen {
     void (*destroy)(struct r300_winsys_screen *ws);
     
@@ -160,9 +165,8 @@ struct r300_winsys_screen {
 				 struct winsys_handle *whandle);
 
     boolean (*is_buffer_referenced)(struct r300_winsys_screen *winsys,
-                                    struct r300_winsys_buffer *buffer);
-
-  
+                                    struct r300_winsys_buffer *buffer,
+                                    enum r300_reference_domain domain);
 };
 
 struct r300_winsys_screen *