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| author | Dave Airlie <airlied@redhat.com> | 2010-02-15 15:54:45 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-02-15 15:54:45 +1000 |
| commit | 2e98f10a7a87ebae4dcc3949028a32008b46ceef (patch) | |
| tree | cf2b173d7f04592f3c8d70d3457436a289c45e57 /drivers/gpu/drm/radeon/r600.c | |
| parent | 7cb72ef4d39978e6e07415a2d552b06d567c3079 (diff) | |
| download | lwn-2e98f10a7a87ebae4dcc3949028a32008b46ceef.tar.gz lwn-2e98f10a7a87ebae4dcc3949028a32008b46ceef.zip | |
drm/radeon/kms: flush HDP cache on GART table updates.
Suggested by Alex Deucher @ AMD
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/r600.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/r600.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 4facbab20456..6434d6af7d52 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -370,6 +370,9 @@ void r600_pcie_gart_tlb_flush(struct radeon_device *rdev) unsigned i; u32 tmp; + /* flush hdp cache so updates hit vram */ + WREG32(R_005480_HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1); + WREG32(VM_CONTEXT0_INVALIDATION_LOW_ADDR, rdev->mc.gtt_start >> 12); WREG32(VM_CONTEXT0_INVALIDATION_HIGH_ADDR, (rdev->mc.gtt_end - 1) >> 12); WREG32(VM_CONTEXT0_REQUEST_RESPONSE, REQUEST_TYPE(1)); |