drm: Add general-purpose packet for manipulating scratch registers (r300)
From: Aapo Tahkola (via DRM CVS)
Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/char/drm/radeon_drm.h b/drivers/char/drm/radeon_drm.h
index bb63e68..c8e279e 100644
--- a/drivers/char/drm/radeon_drm.h
+++ b/drivers/char/drm/radeon_drm.h
@@ -222,6 +222,7 @@
# define R300_WAIT_3D 0x2
# define R300_WAIT_2D_CLEAN 0x3
# define R300_WAIT_3D_CLEAN 0x4
+#define R300_CMD_SCRATCH 8
typedef union {
unsigned int u;
@@ -247,6 +248,9 @@
struct {
unsigned char cmd_type, flags, pad0, pad1;
} wait;
+ struct {
+ unsigned char cmd_type, reg, n_bufs, flags;
+ } scratch;
} drm_r300_cmd_header_t;
#define RADEON_FRONT 0x1