drm/radeon/kms: add initial CS checker support for compute

- Add some new compute regs
- Add new dispatch packets for evergreen/cayman

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/reg_srcs/cayman b/drivers/gpu/drm/radeon/reg_srcs/cayman
index 0aa8e85..2316977 100644
--- a/drivers/gpu/drm/radeon/reg_srcs/cayman
+++ b/drivers/gpu/drm/radeon/reg_srcs/cayman
@@ -208,6 +208,7 @@
 0x0002834C PA_SC_VPORT_ZMAX_15
 0x00028350 SX_MISC
 0x00028354 SX_SURFACE_SYNC
+0x0002835C SX_SCATTER_EXPORT_SIZE
 0x00028380 SQ_VTX_SEMANTIC_0
 0x00028384 SQ_VTX_SEMANTIC_1
 0x00028388 SQ_VTX_SEMANTIC_2
@@ -432,6 +433,7 @@
 0x00028700 SPI_STACK_MGMT
 0x00028704 SPI_WAVE_MGMT_1
 0x00028708 SPI_WAVE_MGMT_2
+0x00028720 GDS_ADDR_BASE
 0x00028724 GDS_ADDR_SIZE
 0x00028780 CB_BLEND0_CONTROL
 0x00028784 CB_BLEND1_CONTROL