Messages in this thread Patch in this message | | | From | Joerg Roedel <> | Subject | [PATCH 3/9] x86/iommu: change PCI-NOMMU to use dma_ops register interface | Date | Mon, 22 Sep 2008 20:21:15 +0200 |
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Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> --- arch/x86/kernel/pci-nommu.c | 12 ++++++++++++ 1 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c index 1c1c98a..0cbecb9 100644 --- a/arch/x86/kernel/pci-nommu.c +++ b/arch/x86/kernel/pci-nommu.c @@ -115,16 +115,28 @@ static void nommu_free_coherent(struct device *dev, size_t size, void *vaddr, free_pages((unsigned long)vaddr, get_order(size)); } +static int nommu_device_supported(struct device *dev) +{ + return 1; +} + struct dma_mapping_ops nommu_dma_ops = { .alloc_coherent = nommu_alloc_coherent, .free_coherent = nommu_free_coherent, .map_single = nommu_map_single, .map_sg = nommu_map_sg, + .device_supported = nommu_device_supported, .is_phys = 1, }; void __init no_iommu_init(void) { + /* + * we always want nommu to be the last fallback if no + * other dma_ops implementation feels responsible + */ + x86_register_dma_ops(&nommu_dma_ops, DMA_OPS_TYPE_SOFT); + if (dma_ops) return; -- 1.5.6.4
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