drm/radeon/kms: add HDP flushing for all GPUs.
rendercheck under kms on r600s was failing due to HDP flushing not happening.
This adds HDP flushing to the object wait function for r100->r700 families.
rendercheck passes basic tests on r600 with this change.
Acked-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 278f646..797a36f 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -1101,6 +1101,10 @@
(void)RREG32(PCIE_PORT_DATA);
}
+void r600_hdp_flush(struct radeon_device *rdev)
+{
+ WREG32(R_005480_HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
+}
/*
* CP & Ring