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>
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 41ce8d5..b50234ef 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -676,6 +676,7 @@
*/
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
index 8b8cd0c..20814b8 100644
--- a/include/asm-x86/amd_iommu_types.h
+++ b/include/asm-x86/amd_iommu_types.h
@@ -232,6 +232,9 @@
/* 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 */