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/iommu.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/iommu.h')
| -rw-r--r-- | arch/ia64/include/asm/iommu.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/iommu.h b/arch/ia64/include/asm/iommu.h new file mode 100644 index 00000000000..5fb2bb93de3 --- /dev/null +++ b/arch/ia64/include/asm/iommu.h @@ -0,0 +1,16 @@ +#ifndef _ASM_IA64_IOMMU_H +#define _ASM_IA64_IOMMU_H 1 + +#define cpu_has_x2apic 0 +/* 10 seconds */ +#define DMAR_OPERATION_TIMEOUT (((cycles_t) local_cpu_data->itc_freq)*10) + +extern void pci_iommu_shutdown(void); +extern void no_iommu_init(void); +extern int force_iommu, no_iommu; +extern int iommu_detected; +extern void iommu_dma_init(void); +extern void machvec_init(const char *name); +extern int forbid_dac; + +#endif |