pci-gart needs to unmap the IOMMU aperture to prevent cache corruptions.
Switch this over to using cpa instead of clear_kernel_mapping()
Drawback right now is that cpa will split everything down to 4k
pages, and this costs 4K for each 2MB of aperture; 128KB for a typical
64MB aperture.
pci-gart needs to unmap the IOMMU aperture to prevent cache corruptions.
Switch this over to using cpa instead of clear_kernel_mapping()
Drawback right now is that cpa will split everything down to 4k
pages, and this costs 4K for each 2MB of aperture; 128KB for a typical
64MB aperture.
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