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intel-agp: Set dma mask for i915

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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>
This commit is contained in:
David Woodhouse 2009-08-05 08:12:40 +01:00
parent 6a12235c7d
commit ba3139f257
1 changed files with 6 additions and 0 deletions
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6
drivers/char/agp/intel-agp.c
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@ -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;
}