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ia64: IOMMU passthrough mode shouldn't trigger swiotlb init

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Since commit 19943b0e30 ('intel-iommu:
Unify hardware and software passthrough support'), hardware passthrough
mode will do the same as software passthrough mode was doing -- it'll
still use the IOMMU normally for devices which can't address all of
memory. This means that we don't need to bother with swiotlb.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
David Woodhouse
2009-08-13 18:18:00 +01:00
parent 5fe60f4e58
commit ba6c548701
1 changed files with 1 additions and 1 deletions
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2
arch/ia64/kernel/pci-swiotlb.c
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@@ -46,7 +46,7 @@ void __init swiotlb_dma_init(void)
void __init pci_swiotlb_init(void) void __init pci_swiotlb_init(void)
{ {
if (!iommu_detected || iommu_pass_through) { if (!iommu_detected) {
#ifdef CONFIG_IA64_GENERIC #ifdef CONFIG_IA64_GENERIC
swiotlb = 1; swiotlb = 1;
printk(KERN_INFO "PCI-DMA: Re-initialize machine vector.\n"); printk(KERN_INFO "PCI-DMA: Re-initialize machine vector.\n");