diff options
| author | Fenghua Yu <fenghua.yu@intel.com> | 2008-10-17 12:14:13 -0700 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2008-10-17 12:14:13 -0700 |
| commit | 62fdd7678a26efadd6ac5c2869543caff77d2df0 (patch) | |
| tree | 0dd67208590c4540ff6a4476579a55bcac0d1fce /arch/ia64/include/asm/machvec_dig_vtd.h | |
| parent | 6bb7a935489dab20802dde6c2cb7d8582f4849bf (diff) | |
[IA64] Add Variable Page Size and IA64 Support in Intel IOMMU
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>
Diffstat (limited to 'arch/ia64/include/asm/machvec_dig_vtd.h')
| -rw-r--r-- | arch/ia64/include/asm/machvec_dig_vtd.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/machvec_dig_vtd.h b/arch/ia64/include/asm/machvec_dig_vtd.h new file mode 100644 index 00000000000..3400b561e71 --- /dev/null +++ b/arch/ia64/include/asm/machvec_dig_vtd.h @@ -0,0 +1,38 @@ +#ifndef _ASM_IA64_MACHVEC_DIG_VTD_h +#define _ASM_IA64_MACHVEC_DIG_VTD_h + +extern ia64_mv_setup_t dig_setup; +extern ia64_mv_dma_alloc_coherent vtd_alloc_coherent; +extern ia64_mv_dma_free_coherent vtd_free_coherent; +extern ia64_mv_dma_map_single_attrs vtd_map_single_attrs; +extern ia64_mv_dma_unmap_single_attrs vtd_unmap_single_attrs; +extern ia64_mv_dma_map_sg_attrs vtd_map_sg_attrs; +extern ia64_mv_dma_unmap_sg_attrs vtd_unmap_sg_attrs; +extern ia64_mv_dma_supported iommu_dma_supported; +extern ia64_mv_dma_mapping_error vtd_dma_mapping_error; +extern ia64_mv_dma_init pci_iommu_alloc; + +/* + * This stuff has dual use! + * + * For a generic kernel, the macros are used to initialize the + * platform's machvec structure. When compiling a non-generic kernel, + * the macros are used directly. + */ +#define platform_name "dig_vtd" +#define platform_setup dig_setup +#define platform_dma_init pci_iommu_alloc +#define platform_dma_alloc_coherent vtd_alloc_coherent +#define platform_dma_free_coherent vtd_free_coherent +#define platform_dma_map_single_attrs vtd_map_single_attrs +#define platform_dma_unmap_single_attrs vtd_unmap_single_attrs +#define platform_dma_map_sg_attrs vtd_map_sg_attrs +#define platform_dma_unmap_sg_attrs vtd_unmap_sg_attrs +#define platform_dma_sync_single_for_cpu machvec_dma_sync_single +#define platform_dma_sync_sg_for_cpu machvec_dma_sync_sg +#define platform_dma_sync_single_for_device machvec_dma_sync_single +#define platform_dma_sync_sg_for_device machvec_dma_sync_sg +#define platform_dma_supported iommu_dma_supported +#define platform_dma_mapping_error vtd_dma_mapping_error + +#endif /* _ASM_IA64_MACHVEC_DIG_VTD_h */ |