Commit-ID: 9d5ce73a64be2be8112147a3e0b551ad9cd1247b
Gitweb: http://git.kernel.org/tip/9d5ce73a64be2be8112147a3e0b551ad9cd1247b
Author: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>
AuthorDate: Tue, 10 Nov 2009 19:46:16 +0900
Committer: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Tue, 10 Nov 2009 12:31:36 +0100
x86: intel-iommu: Convert detect_intel_iommu to use iommu_init hook
This changes detect_intel_iommu() to set intel_iommu_init() to
iommu_init hook if detect_intel_iommu() finds the IOMMU.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>
Cc: chrisw@xxxxxxxxxxxx
Cc: dwmw2@xxxxxxxxxxxxx
Cc: joerg.roedel@xxxxxxx
Cc: muli@xxxxxxxxxx
LKML-Reference: <1257849980-22640-6-git-send-email-fujita.tomonori@xxxxxxxxxxxxx>
[ -v2: build fix for the !CONFIG_DMAR case ]
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
arch/x86/kernel/pci-dma.c | 2 --
drivers/pci/dmar.c | 4 ++++
include/linux/dmar.h | 15 ++++-----------
3 files changed, 8 insertions(+), 13 deletions(-)
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 5ca44a9..bed05e2 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -294,8 +294,6 @@ static int __init pci_iommu_init(void)
x86_init.iommu.iommu_init();
- intel_iommu_init();
-
no_iommu_init();
return 0;
}
diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c
index 22b02c6..bce9cd7 100644
--- a/drivers/pci/dmar.c
+++ b/drivers/pci/dmar.c
@@ -617,6 +617,10 @@ void __init detect_intel_iommu(void)
!dmar_disabled)
iommu_detected = 1;
#endif
+#ifdef CONFIG_X86
+ if (ret)
+ x86_init.iommu.iommu_init = intel_iommu_init;
+#endif
}
early_acpi_os_unmap_memory(dmar_tbl, dmar_tbl_size);
dmar_tbl = NULL;
diff --git a/include/linux/dmar.h b/include/linux/dmar.h
index 4a2b162..5de4c9e 100644
--- a/include/linux/dmar.h
+++ b/include/linux/dmar.h
@@ -208,16 +208,9 @@ struct dmar_atsr_unit {
u8 include_all:1; /* include all ports */
};
-/* Intel DMAR initialization functions */
extern int intel_iommu_init(void);
-#else
-static inline int intel_iommu_init(void)
-{
-#ifdef CONFIG_INTR_REMAP
- return dmar_dev_scope_init();
-#else
- return -ENODEV;
-#endif
-}
-#endif /* !CONFIG_DMAR */
+#else /* !CONFIG_DMAR: */
+static inline int intel_iommu_init(void) { return -ENODEV; }
+#endif /* CONFIG_DMAR */
+
#endif /* __DMAR_H__ */
--
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