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authorZhenyu Wang <zhenyuw@linux.intel.com>2012-12-13 23:47:47 +0800
committerDaniel Vetter <daniel.vetter@ffwll.ch>2012-12-13 21:40:24 +0100
commit20652097dadd9a7fb4d652f25466299974bc78f9 (patch)
treebad3f5f7d5ea54739d090798597f037737c8c98c
parent335c07b7982eff480afdf8c9b25225511dd07031 (diff)
downloadop-kernel-dev-20652097dadd9a7fb4d652f25466299974bc78f9.zip
op-kernel-dev-20652097dadd9a7fb4d652f25466299974bc78f9.tar.gz
drm/i915: Fix missed needs_dmar setting
From Ben's AGP dependence removal change, "needs_dmar" flag has not been properly setup for new chips using new GTT init function. This one adds missed setting of that flag to make sure we do pci mappings with IOMMU enabled. Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
-rw-r--r--drivers/gpu/drm/i915/i915_gem_gtt.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index f7ac61e..2c150de 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -639,6 +639,10 @@ int i915_gem_gtt_init(struct drm_device *dev)
if (!pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(40)))
pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(40));
+#ifdef CONFIG_INTEL_IOMMU
+ dev_priv->mm.gtt->needs_dmar = 1;
+#endif
+
/* For GEN6+ the PTEs for the ggtt live at 2MB + BAR0 */
gtt_bus_addr = pci_resource_start(dev->pdev, 0) + (2<<20);
dev_priv->mm.gtt->gma_bus_addr = pci_resource_start(dev->pdev, 2);
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