drm/radeon/kms: Add initial support for async DMA on r6xx/r7xx
Uses the new multi-ring infrastucture. 6xx/7xx has a single
async DMA ring.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/rv770d.h b/drivers/gpu/drm/radeon/rv770d.h
index e2d9dc8..20e29d2 100644
--- a/drivers/gpu/drm/radeon/rv770d.h
+++ b/drivers/gpu/drm/radeon/rv770d.h
@@ -109,6 +109,9 @@
#define PIPE_TILING__SHIFT 1
#define PIPE_TILING__MASK 0x0000000e
+#define DMA_TILING_CONFIG 0x3ec8
+#define DMA_TILING_CONFIG2 0xd0b8
+
#define GC_USER_SHADER_PIPE_CONFIG 0x8954
#define INACTIVE_QD_PIPES(x) ((x) << 8)
#define INACTIVE_QD_PIPES_MASK 0x0000FF00
@@ -358,6 +361,26 @@
#define WAIT_UNTIL 0x8040
+/* async DMA */
+#define DMA_RB_RPTR 0xd008
+#define DMA_RB_WPTR 0xd00c
+
+/* async DMA packets */
+#define DMA_PACKET(cmd, t, s, n) ((((cmd) & 0xF) << 28) | \
+ (((t) & 0x1) << 23) | \
+ (((s) & 0x1) << 22) | \
+ (((n) & 0xFFFF) << 0))
+/* async DMA Packet types */
+#define DMA_PACKET_WRITE 0x2
+#define DMA_PACKET_COPY 0x3
+#define DMA_PACKET_INDIRECT_BUFFER 0x4
+#define DMA_PACKET_SEMAPHORE 0x5
+#define DMA_PACKET_FENCE 0x6
+#define DMA_PACKET_TRAP 0x7
+#define DMA_PACKET_CONSTANT_FILL 0xd
+#define DMA_PACKET_NOP 0xf
+
+
#define SRBM_STATUS 0x0E50
/* DCE 3.2 HDMI */