drm/radeon/kms: add 6xx/7xx CS parser for async DMA (v2)
Allows us to use the DMA ring from userspace.
DMA doesn't have a good NOP packet in which to embed the
reloc idx, so userspace has to add a reloc for each
buffer used and order them to match the command stream.
v2: fix address bounds checking, reloc indexing
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index c338931..b311c0a 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -304,6 +304,7 @@
uint32_t r600_pciep_rreg(struct radeon_device *rdev, uint32_t reg);
void r600_pciep_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v);
int r600_cs_parse(struct radeon_cs_parser *p);
+int r600_dma_cs_parse(struct radeon_cs_parser *p);
void r600_fence_ring_emit(struct radeon_device *rdev,
struct radeon_fence *fence);
void r600_semaphore_ring_emit(struct radeon_device *rdev,