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22 lines
891 B
Diff
22 lines
891 B
Diff
commit 108aa376ae52e634f6465424554fa9319c0a7a61
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Author: Michel Dänzer <michel.daenzer@amd.com>
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Date: Fri Oct 10 18:01:18 2014 +0900
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drm/radeon: Ignore RADEON_GEM_GTT_WC on Kabini and Aruba
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diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
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index 7f3b1e1..aea7c6e 100644
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--- a/drivers/gpu/drm/radeon/radeon_object.c
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+++ b/drivers/gpu/drm/radeon/radeon_object.c
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@@ -235,6 +235,10 @@ int radeon_bo_create(struct radeon_device *rdev,
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if (!(rdev->flags & RADEON_IS_PCIE))
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bo->flags &= ~(RADEON_GEM_GTT_WC | RADEON_GEM_GTT_UC);
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+ /* XXX: Write-combined CPU mappings of GTT seem broken on Kabini and Aruba */
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+ if (rdev->family == CHIP_KABINI || rdev->family == CHIP_ARUBA)
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+ bo->flags &= ~RADEON_GEM_GTT_WC;
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+
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radeon_ttm_placement_from_domain(bo, domain);
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/* Kernel allocation are uninterruptible */
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down_read(&rdev->pm.mclk_lock);
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