Documented the value written for R300_TX_CNTL cache flush.

diff --git a/src/mesa/drivers/dri/r300/r300_cmdbuf.c b/src/mesa/drivers/dri/r300/r300_cmdbuf.c
index 8972544..e4511e0 100644 (file)
--- a/src/mesa/drivers/dri/r300/r300_cmdbuf.c
+++ b/src/mesa/drivers/dri/r300/r300_cmdbuf.c
@@ -174,11 +174,12 @@ static __inline__ void r300DoEmitState(r300ContextPtr r300, GLboolean dirty)
        dest ++;
        r300->cmdbuf.count_used ++;
 
+       /* Emit cache flush */
        *dest = cmdpacket0(R300_TX_CNTL, 1);
        dest ++;
        r300->cmdbuf.count_used ++;
        
-       *dest = 0x0;
+       *dest = R300_TX_FLUSH;
        dest ++;
        r300->cmdbuf.count_used ++;
        

diff --git a/src/mesa/drivers/dri/r300/r300_reg.h b/src/mesa/drivers/dri/r300/r300_reg.h
index be357ab..aa6d81a 100644 (file)
--- a/src/mesa/drivers/dri/r300/r300_reg.h
+++ b/src/mesa/drivers/dri/r300/r300_reg.h
@@ -497,6 +497,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 /* Zero to flush caches. */
 #define R300_TX_CNTL                        0x4100
+#define R300_TX_FLUSH                       0x0
 
 /* The upper enable bits are guessed, based on fglrx reported limits. */
 #define R300_TX_ENABLE                      0x4104