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Merge branch 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 

* 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86/amd-iommu: Export cache-coherency capability
  iommu-api: Extension to check for interrupt remapping
  x86/amd-iommu: Use for_each_pci_dev()
This commit is contained in:
Linus Torvalds 2010-08-06 09:22:39 -07:00
parent 132a4edb2b 7a42c4ff02
commit cc77b4db00
3 changed files with 9 additions and 2 deletions
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8
arch/x86/kernel/amd_iommu.c
View File

@ -2572,6 +2572,11 @@ static phys_addr_t amd_iommu_iova_to_phys(struct iommu_domain *dom,
static int amd_iommu_domain_has_cap(struct iommu_domain *domain,
unsigned long cap)
{
switch (cap) {
case IOMMU_CAP_CACHE_COHERENCY:
return 1;
}
return 0;
}
@ -2609,8 +2614,7 @@ int __init amd_iommu_init_passthrough(void)
pt_domain->mode |= PAGE_MODE_NONE;
while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
for_each_pci_dev(dev) {
if (!check_device(&dev->dev))
continue;

2
drivers/pci/intel-iommu.c
View File

@ -3698,6 +3698,8 @@ static int intel_iommu_domain_has_cap(struct iommu_domain *domain,
if (cap == IOMMU_CAP_CACHE_COHERENCY)
return dmar_domain->iommu_snooping;
if (cap == IOMMU_CAP_INTR_REMAP)
return intr_remapping_enabled;
return 0;
}

1
include/linux/iommu.h
View File

@ -30,6 +30,7 @@ struct iommu_domain {
};
#define IOMMU_CAP_CACHE_COHERENCY 0x1
#define IOMMU_CAP_INTR_REMAP 0x2 /* isolates device intrs */
struct iommu_ops {
int (*domain_init)(struct iommu_domain *domain);