lkml.org 
[lkml]   [2009]   [Nov]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[tip:core/iommu] x86: intel-iommu: Convert detect_intel_iommu to use iommu_init hook
Commit-ID:  9d5ce73a64be2be8112147a3e0b551ad9cd1247b
Gitweb: http://git.kernel.org/tip/9d5ce73a64be2be8112147a3e0b551ad9cd1247b
Author: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
AuthorDate: Tue, 10 Nov 2009 19:46:16 +0900
Committer: Ingo Molnar <mingo@elte.hu>
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@lab.ntt.co.jp>
Cc: chrisw@sous-sol.org
Cc: dwmw2@infradead.org
Cc: joerg.roedel@amd.com
Cc: muli@il.ibm.com
LKML-Reference: <1257849980-22640-6-git-send-email-fujita.tomonori@lab.ntt.co.jp>
[ -v2: build fix for the !CONFIG_DMAR case ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
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__ */

\
 
 \ /
  Last update: 2009-11-10 14:27    [W:0.911 / U:0.128 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site