drm/radeon: add dma engine support for vm pt updates on si (v2)

Async DMA has a special packet for contiguous pt updates
which saves overhead.

v2: rebase

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h
index 0acd32759c7c..e153c254fbfb 100644
--- a/drivers/gpu/drm/radeon/sid.h
+++ b/drivers/gpu/drm/radeon/sid.h
@@ -972,6 +972,16 @@
                                          (((t) & 0x1) << 23) |          \
                                          (((s) & 0x1) << 22) |          \
                                          (((n) & 0xFFFFF) << 0))
+
+#define DMA_IB_PACKET(cmd, vmid, n)     ((((cmd) & 0xF) << 28) |        \
+                                         (((vmid) & 0xF) << 20) |       \
+                                         (((n) & 0xFFFFF) << 0))
+
+#define DMA_PTE_PDE_PACKET(n)           ((2 << 28) |                    \
+                                         (1 << 26) |                    \
+                                         (1 << 21) |                    \
+                                         (((n) & 0xFFFFF) << 0))
+
 /* async DMA Packet types */
 #define DMA_PACKET_WRITE                                  0x2
 #define DMA_PACKET_COPY                                   0x3