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| author | Suresh Siddha <suresh.b.siddha@intel.com> | 2008-07-10 11:16:43 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-12 08:44:53 +0200 |
| commit | 2ae21010694e56461a63bfc80e960090ce0a5ed9 (patch) | |
| tree | d4ecdb710c4361df473b063eda9e1426fcf5c309 /drivers/pci/dmar.c | |
| parent | fe962e90cb17a8426e144dee970e77ed789d98ee (diff) | |
| download | op-kernel-dev-2ae21010694e56461a63bfc80e960090ce0a5ed9.zip op-kernel-dev-2ae21010694e56461a63bfc80e960090ce0a5ed9.tar.gz | |
x64, x2apic/intr-remap: Interrupt remapping infrastructure
Interrupt remapping (part of Intel Virtualization Tech for directed I/O)
infrastructure.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: akpm@linux-foundation.org
Cc: arjan@linux.intel.com
Cc: andi@firstfloor.org
Cc: ebiederm@xmission.com
Cc: jbarnes@virtuousgeek.org
Cc: steiner@sgi.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/pci/dmar.c')
| -rw-r--r-- | drivers/pci/dmar.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c index aba151c..23a119e 100644 --- a/drivers/pci/dmar.c +++ b/drivers/pci/dmar.c @@ -449,6 +449,22 @@ int __init early_dmar_detect(void) return (ACPI_SUCCESS(status) ? 1 : 0); } +void __init detect_intel_iommu(void) +{ + int ret; + + ret = early_dmar_detect(); + +#ifdef CONFIG_DMAR + { + if (ret && !no_iommu && !iommu_detected && !swiotlb && + !dmar_disabled) + iommu_detected = 1; + } +#endif +} + + int alloc_iommu(struct dmar_drhd_unit *drhd) { struct intel_iommu *iommu; |
