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authorJiang Liu <jiang.liu@linux.intel.com>2014-11-09 22:47:56 +0800
committerJoerg Roedel <jroedel@suse.de>2014-11-18 11:18:35 +0100
commitc2a0b538d2c778aef7bf2fbe7973229192c9a392 (patch)
tree43fb6451526e573d70bd29cca9f2bef286b5a0ee /include/linux/dmar.h
parent1a2262f90f493103496f3383741fb5d594c33738 (diff)
iommu/vt-d: Introduce helper function dmar_walk_resources()
Introduce helper function dmar_walk_resources to walk resource entries in DMAR table and ACPI buffer object returned by ACPI _DSM method for IOMMU hot-plug. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/dmar.h')
-rw-r--r--include/linux/dmar.h19
1 files changed, 9 insertions, 10 deletions
diff --git a/include/linux/dmar.h b/include/linux/dmar.h
index 593fff99e6bf..495df5e48f80 100644
--- a/include/linux/dmar.h
+++ b/include/linux/dmar.h
@@ -121,22 +121,21 @@ extern int dmar_remove_dev_scope(struct dmar_pci_notify_info *info,
extern int detect_intel_iommu(void);
extern int enable_drhd_fault_handling(void);
+static inline int dmar_res_noop(struct acpi_dmar_header *hdr, void *arg)
+{
+ return 0;
+}
+
#ifdef CONFIG_INTEL_IOMMU
extern int iommu_detected, no_iommu;
extern int intel_iommu_init(void);
-extern int dmar_parse_one_rmrr(struct acpi_dmar_header *header);
-extern int dmar_parse_one_atsr(struct acpi_dmar_header *header);
+extern int dmar_parse_one_rmrr(struct acpi_dmar_header *header, void *arg);
+extern int dmar_parse_one_atsr(struct acpi_dmar_header *header, void *arg);
extern int dmar_iommu_notify_scope_dev(struct dmar_pci_notify_info *info);
#else /* !CONFIG_INTEL_IOMMU: */
static inline int intel_iommu_init(void) { return -ENODEV; }
-static inline int dmar_parse_one_rmrr(struct acpi_dmar_header *header)
-{
- return 0;
-}
-static inline int dmar_parse_one_atsr(struct acpi_dmar_header *header)
-{
- return 0;
-}
+#define dmar_parse_one_rmrr dmar_res_noop
+#define dmar_parse_one_atsr dmar_res_noop
static inline int dmar_iommu_notify_scope_dev(struct dmar_pci_notify_info *info)
{
return 0;