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-rw-r--r--arch/x86/include/asm/amd_iommu_proto.h1
-rw-r--r--arch/x86/kernel/amd_iommu.c7
-rw-r--r--arch/x86/kernel/amd_iommu_init.c2
3 files changed, 8 insertions, 2 deletions
diff --git a/arch/x86/include/asm/amd_iommu_proto.h b/arch/x86/include/asm/amd_iommu_proto.h
index 2566e2606224..4d817f9e6e77 100644
--- a/arch/x86/include/asm/amd_iommu_proto.h
+++ b/arch/x86/include/asm/amd_iommu_proto.h
@@ -30,6 +30,7 @@ extern void amd_iommu_apply_erratum_63(u16 devid);
extern void amd_iommu_reset_cmd_buffer(struct amd_iommu *iommu);
extern int amd_iommu_init_devices(void);
extern void amd_iommu_uninit_devices(void);
+extern void amd_iommu_init_notifier(void);
#ifndef CONFIG_AMD_IOMMU_STATS
static inline void amd_iommu_stats_init(void) { }
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 450dd6ac03d3..a83185080e91 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -1624,6 +1624,11 @@ static struct notifier_block device_nb = {
.notifier_call = device_change_notifier,
};
+void amd_iommu_init_notifier(void)
+{
+ bus_register_notifier(&pci_bus_type, &device_nb);
+}
+
/*****************************************************************************
*
* The next functions belong to the dma_ops mapping/unmapping code.
@@ -2250,8 +2255,6 @@ int __init amd_iommu_init_dma_ops(void)
register_iommu(&amd_iommu_ops);
- bus_register_notifier(&pci_bus_type, &device_nb);
-
amd_iommu_stats_init();
return 0;
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index df01c691d130..309a52f96e0b 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -1285,6 +1285,8 @@ static int __init amd_iommu_init(void)
if (ret)
goto free;
+ amd_iommu_init_notifier();
+
enable_iommus();
if (iommu_pass_through)