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drm/radeon/kms: add HDP flushing for all GPUs.

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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>
This commit is contained in:
Dave Airlie
2009-11-23 12:01:09 +10:00
parent 38e1492130
commit 23956dfa82
6 changed files with 28 additions and 0 deletions
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drivers/gpu/drm/radeon/r100.c
+8
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@@ -1589,6 +1589,14 @@ void r100_gpu_init(struct radeon_device *rdev)
r100_hdp_reset(rdev);
}
void r100_hdp_flush(struct radeon_device *rdev)
{
u32 tmp;
tmp = RREG32(RADEON_HOST_PATH_CNTL);
tmp |= RADEON_HDP_READ_BUFFER_INVALIDATE;
WREG32(RADEON_HOST_PATH_CNTL, tmp);
}
void r100_hdp_reset(struct radeon_device *rdev)
{
uint32_t tmp;