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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2009-11-10 19:46:12 +0900
committerIngo Molnar <mingo@elte.hu>2009-11-10 12:31:07 +0100
commitd07c1be0693e0902d743160b8b638585b808f8ac (patch)
treef7fdf807528bf9938fc1710bcd7ad9e15c9d7f75 /arch/x86/kernel
parent41855b77547fa18d90ed6a5d322983d3fdab1959 (diff)
x86: Add iommu_init to x86_init_ops
We call the detections functions of all the IOMMUs then all their initialization functions. The latter is pointless since we don't detect multiple different IOMMUs. What we need to do is calling the initialization function of the detected IOMMU. This adds iommu_init hook to x86_init_ops so if an IOMMU detection function can set its initialization function to the hook. 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: <1257849980-22640-2-git-send-email-fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r--arch/x86/kernel/pci-dma.c2
-rw-r--r--arch/x86/kernel/x86_init.c5
2 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 839d49a669b..a13478da533 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -292,6 +292,8 @@ static int __init pci_iommu_init(void)
dma_debug_add_bus(&pci_bus_type);
#endif
+ x86_init.iommu.iommu_init();
+
calgary_iommu_init();
intel_iommu_init();
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index bc9b230ef40..c46984d122d 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -19,6 +19,7 @@
void __cpuinit x86_init_noop(void) { }
void __init x86_init_uint_noop(unsigned int unused) { }
void __init x86_init_pgd_noop(pgd_t *unused) { }
+int __init iommu_init_noop(void) { return 0; }
/*
* The platform setup functions are preset with the default functions
@@ -63,6 +64,10 @@ struct x86_init_ops x86_init __initdata = {
.tsc_pre_init = x86_init_noop,
.timer_init = hpet_time_init,
},
+
+ .iommu = {
+ .iommu_init = iommu_init_noop,
+ },
};
struct x86_cpuinit_ops x86_cpuinit __cpuinitdata = {