forked from luck/tmp_suning_uos_patched
62fdd7678a
The patch contains Intel IOMMU IA64 specific code. It defines new machvec dig_vtd, hooks for IOMMU, DMAR table detection, cache line flush function, etc. For a generic kernel with CONFIG_DMAR=y, if Intel IOMMU is detected, dig_vtd is used for machinve vector. Otherwise, kernel falls back to dig machine vector. Kernel parameter "machvec=dig" or "intel_iommu=off" can be used to force kernel to boot dig machine vector. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
39 lines
1.6 KiB
C
39 lines
1.6 KiB
C
#ifndef _ASM_IA64_MACHVEC_DIG_VTD_h
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#define _ASM_IA64_MACHVEC_DIG_VTD_h
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extern ia64_mv_setup_t dig_setup;
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extern ia64_mv_dma_alloc_coherent vtd_alloc_coherent;
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extern ia64_mv_dma_free_coherent vtd_free_coherent;
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extern ia64_mv_dma_map_single_attrs vtd_map_single_attrs;
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extern ia64_mv_dma_unmap_single_attrs vtd_unmap_single_attrs;
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extern ia64_mv_dma_map_sg_attrs vtd_map_sg_attrs;
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extern ia64_mv_dma_unmap_sg_attrs vtd_unmap_sg_attrs;
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extern ia64_mv_dma_supported iommu_dma_supported;
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extern ia64_mv_dma_mapping_error vtd_dma_mapping_error;
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extern ia64_mv_dma_init pci_iommu_alloc;
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/*
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* This stuff has dual use!
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*
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* For a generic kernel, the macros are used to initialize the
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* platform's machvec structure. When compiling a non-generic kernel,
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* the macros are used directly.
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*/
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#define platform_name "dig_vtd"
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#define platform_setup dig_setup
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#define platform_dma_init pci_iommu_alloc
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#define platform_dma_alloc_coherent vtd_alloc_coherent
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#define platform_dma_free_coherent vtd_free_coherent
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#define platform_dma_map_single_attrs vtd_map_single_attrs
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#define platform_dma_unmap_single_attrs vtd_unmap_single_attrs
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#define platform_dma_map_sg_attrs vtd_map_sg_attrs
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#define platform_dma_unmap_sg_attrs vtd_unmap_sg_attrs
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#define platform_dma_sync_single_for_cpu machvec_dma_sync_single
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#define platform_dma_sync_sg_for_cpu machvec_dma_sync_sg
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#define platform_dma_sync_single_for_device machvec_dma_sync_single
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#define platform_dma_sync_sg_for_device machvec_dma_sync_sg
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#define platform_dma_supported iommu_dma_supported
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#define platform_dma_mapping_error vtd_dma_mapping_error
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#endif /* _ASM_IA64_MACHVEC_DIG_VTD_h */
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