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[IA64] Add Variable Page Size and IA64 Support in Intel IOMMU

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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>
This commit is contained in:
Fenghua Yu
2008-10-17 12:14:13 -07:00
committed by Tony Luck
parent 6bb7a93548
commit 62fdd7678a
23 changed files with 620 additions and 13 deletions
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3
arch/ia64/include/asm/device.h
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@ -10,6 +10,9 @@ struct dev_archdata {
#ifdef CONFIG_ACPI
void *acpi_handle;
#endif
#ifdef CONFIG_DMAR
void *iommu; /* hook for IOMMU specific extension */
#endif
};
#endif /* _ASM_IA64_DEVICE_H */