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drm/radeon: properly program gart on rv740, juniper, cypress, barts, hemlock

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Need to program an additional VM register.  This doesn't not currently
cause any problems, but allows us to program the proper backend
map in a subsequent patch which should improve performance on these
asics.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher
2012-05-31 18:54:43 -04:00
committed by Dave Airlie
parent 29d654067a
commit 0b8c30bc49
4 changed files with 9 additions and 0 deletions
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2
drivers/gpu/drm/radeon/rv770.c
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@@ -151,6 +151,8 @@ int rv770_pcie_gart_enable(struct radeon_device *rdev)
WREG32(MC_VM_MD_L1_TLB0_CNTL, tmp);
WREG32(MC_VM_MD_L1_TLB1_CNTL, tmp);
WREG32(MC_VM_MD_L1_TLB2_CNTL, tmp);
if (rdev->family == CHIP_RV740)
WREG32(MC_VM_MD_L1_TLB3_CNTL, tmp);
WREG32(MC_VM_MB_L1_TLB0_CNTL, tmp);
WREG32(MC_VM_MB_L1_TLB1_CNTL, tmp);
WREG32(MC_VM_MB_L1_TLB2_CNTL, tmp);