radeon: setup the ring buffer fetcher to be less agressive.
Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/char/drm/radeon_drv.h b/drivers/char/drm/radeon_drv.h
index 8ce4940..443a895 100644
--- a/drivers/char/drm/radeon_drv.h
+++ b/drivers/char/drm/radeon_drv.h
@@ -166,6 +166,12 @@
int size;
int size_l2qw;
+ int rptr_update; /* Double Words */
+ int rptr_update_l2qw; /* log2 Quad Words */
+
+ int fetch_size; /* Double Words */
+ int fetch_size_l2ow; /* log2 Oct Words */
+
u32 tail;
u32 tail_mask;
int space;
@@ -615,9 +621,51 @@
# define RADEON_SOFT_RESET_E2 (1 << 5)
# define RADEON_SOFT_RESET_RB (1 << 6)
# define RADEON_SOFT_RESET_HDP (1 << 7)
+/*
+ * 6:0 Available slots in the FIFO
+ * 8 Host Interface active
+ * 9 CP request active
+ * 10 FIFO request active
+ * 11 Host Interface retry active
+ * 12 CP retry active
+ * 13 FIFO retry active
+ * 14 FIFO pipeline busy
+ * 15 Event engine busy
+ * 16 CP command stream busy
+ * 17 2D engine busy
+ * 18 2D portion of render backend busy
+ * 20 3D setup engine busy
+ * 26 GA engine busy
+ * 27 CBA 2D engine busy
+ * 31 2D engine busy or 3D engine busy or FIFO not empty or CP busy or
+ * command stream queue not empty or Ring Buffer not empty
+ */
#define RADEON_RBBM_STATUS 0x0e40
+/* Same as the previous RADEON_RBBM_STATUS; this is a mirror of that register. */
+/* #define RADEON_RBBM_STATUS 0x1740 */
+/* bits 6:0 are dword slots available in the cmd fifo */
# define RADEON_RBBM_FIFOCNT_MASK 0x007f
-# define RADEON_RBBM_ACTIVE (1 << 31)
+# define RADEON_HIRQ_ON_RBB (1 << 8)
+# define RADEON_CPRQ_ON_RBB (1 << 9)
+# define RADEON_CFRQ_ON_RBB (1 << 10)
+# define RADEON_HIRQ_IN_RTBUF (1 << 11)
+# define RADEON_CPRQ_IN_RTBUF (1 << 12)
+# define RADEON_CFRQ_IN_RTBUF (1 << 13)
+# define RADEON_PIPE_BUSY (1 << 14)
+# define RADEON_ENG_EV_BUSY (1 << 15)
+# define RADEON_CP_CMDSTRM_BUSY (1 << 16)
+# define RADEON_E2_BUSY (1 << 17)
+# define RADEON_RB2D_BUSY (1 << 18)
+# define RADEON_RB3D_BUSY (1 << 19) /* not used on r300 */
+# define RADEON_VAP_BUSY (1 << 20)
+# define RADEON_RE_BUSY (1 << 21) /* not used on r300 */
+# define RADEON_TAM_BUSY (1 << 22) /* not used on r300 */
+# define RADEON_TDM_BUSY (1 << 23) /* not used on r300 */
+# define RADEON_PB_BUSY (1 << 24) /* not used on r300 */
+# define RADEON_TIM_BUSY (1 << 25) /* not used on r300 */
+# define RADEON_GA_BUSY (1 << 26)
+# define RADEON_CBA2D_BUSY (1 << 27)
+# define RADEON_RBBM_ACTIVE (1 << 31)
#define RADEON_RE_LINE_PATTERN 0x1cd0
#define RADEON_RE_MISC 0x26c4
#define RADEON_RE_TOP_LEFT 0x26c0