r300: Document more of the RADEON_RBBM_STATUS register.

diff --git a/shared-core/radeon_drv.h b/shared-core/radeon_drv.h
index f1d9ca9..c9e2f4f 100644 (file)
--- a/shared-core/radeon_drv.h
+++ b/shared-core/radeon_drv.h
@@ -612,9 +612,51 @@ extern int r300_do_cp_cmdbuf(drm_device_t *dev, DRMFILE filp,
 #      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_GUI_ACTIVE        (1 << 31) /* previously known as RADEON_RBBM_ACTIVE */
 #define RADEON_RE_LINE_PATTERN         0x1cd0
 #define RADEON_RE_MISC                 0x26c4
 #define RADEON_RE_TOP_LEFT             0x26c0