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authorDavid Woodhouse <David.Woodhouse@intel.com>2009-08-05 08:12:40 +0100
committerDavid Woodhouse <David.Woodhouse@intel.com>2009-08-05 08:13:27 +0100
commitba3139f2577eee24479db73b8dfc7d78eaf4c486 (patch)
tree069924c6a9717244621bd628f7642452e98ed396 /drivers/char/agp
parent6a12235c7d2d75c7d94b9afcaaecd422ff845ce0 (diff)
intel-agp: Set dma mask for i915
If DMAR is configured in but absent, we really do want to make sure that the dma mask is set appropriately. Otherwise we get mapping failures on highmem. Spotted by Zhenyu Wang. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/char/agp')
-rw-r--r--drivers/char/agp/intel-agp.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index aa8889e8afc..9bc3a0b82b9 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -1140,6 +1140,12 @@ static int intel_i915_configure(void)
intel_i9xx_setup_flush();
+#ifdef USE_PCI_DMA_API
+ if (pci_set_dma_mask(intel_private.pcidev, DMA_BIT_MASK(36)))
+ dev_err(&intel_private.pcidev->dev,
+ "set gfx device dma mask 36bit failed!\n");
+#endif
+
return 0;
}