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| author |   Jeremy Fitzhardinge <jeremy@goop.org> | 2008-12-16 12:17:36 -0800 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-12-17 18:58:19 +0100 |
| commit | cfb80c9eae8c7ed8f2ee81090062d15ead51cbe8 (patch) | |
| tree | 8343c02e8599f0e038cc9c0b303854193fb38e37 /arch/x86/kernel/pci-swiotlb_64.c | |
| parent | x86: add swiotlb allocation functions (diff) | |
| download | linux-dev-cfb80c9eae8c7ed8f2ee81090062d15ead51cbe8.tar.xz linux-dev-cfb80c9eae8c7ed8f2ee81090062d15ead51cbe8.zip | |
x86: unify pci iommu setup and allow swiotlb to compile for 32 bit
swiotlb on 32 bit will be used by Xen domain 0 support.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/pci-swiotlb_64.c')
| -rw-r--r-- | arch/x86/kernel/pci-swiotlb_64.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/pci-swiotlb_64.c b/arch/x86/kernel/pci-swiotlb_64.c index f47a097a135b..a991afea6700 100644 --- a/arch/x86/kernel/pci-swiotlb_64.c +++ b/arch/x86/kernel/pci-swiotlb_64.c @@ -62,8 +62,10 @@ struct dma_mapping_ops swiotlb_dma_ops = { void __init pci_swiotlb_init(void) { /* don't initialize swiotlb if iommu=off (no_iommu=1) */ +#ifdef CONFIG_X86_64 if (!iommu_detected && !no_iommu && max_pfn > MAX_DMA32_PFN) swiotlb = 1; +#endif if (swiotlb_force) swiotlb = 1; if (swiotlb) { |