AMD IOMMU: save pci segment from ACPI tables

This patch adds the pci_seg field to the amd_iommu structure and fills it with the corresponding value from the ACPI table. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
git-mirror · Sep 19, 2008 · ee893c2 · ee893c2
1 parent 335503e
commit ee893c2
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diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
@@ -676,6 +676,7 @@ static int __init init_iommu_one(struct amd_iommu *iommu, struct ivhd_header *h)
 	 */
 	iommu->devid = h->devid;
 	iommu->cap_ptr = h->cap_ptr;
+	iommu->pci_seg = h->pci_seg;
 	iommu->mmio_phys = h->mmio_phys;
 	iommu->mmio_base = iommu_map_mmio_space(h->mmio_phys);
 	if (!iommu->mmio_base)

diff --git a/include/asm-x86/amd_iommu_types.h b/include/asm-x86/amd_iommu_types.h
@@ -232,6 +232,9 @@ struct amd_iommu {
 	/* capabilities of that IOMMU read from ACPI */
 	u32 cap;
 
+	/* pci domain of this IOMMU */
+	u16 pci_seg;
+
 	/* first device this IOMMU handles. read from PCI */
 	u16 first_device;
 	/* last device this IOMMU handles. read from PCI */