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CONFIG_INTEL_IOMMU_BROKEN_GFX_WA: Workaround broken graphics drivers (going away soon)

General informations

The Linux kernel configuration item CONFIG_INTEL_IOMMU_BROKEN_GFX_WA:

Help text

Current Graphics drivers tend to use physical address for DMA and avoid using DMA APIs. Setting this config option permits the IOMMU driver to set a unity map for all the OS-visible memory. Hence the driver can continue to use physical addresses for DMA, at least until this option is removed in the 2.6.32 kernel.

Hardware

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