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| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2009-01-05 15:59:02 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-06 14:06:57 +0100 |
| commit | 160c1d8e40866edfeae7d68816b7005d70acf391 (patch) | |
| tree | 37dd78b2ea28a3953a46d401bd9657005eb444d7 /arch/ia64/kernel/pci-dma.c | |
| parent | generic: add common struct for dma map operations (diff) | |
| download | linux-160c1d8e40866edfeae7d68816b7005d70acf391.tar.xz linux-160c1d8e40866edfeae7d68816b7005d70acf391.zip | |
x86, ia64: convert to use generic dma_map_ops struct
This converts X86 and IA64 to use include/linux/dma-mapping.h.
It's a bit large but pretty boring. The major change for X86 is
converting 'int dir' to 'enum dma_data_direction dir' in DMA mapping
operations. The major changes for IA64 is using map_page and
unmap_page instead of map_single and unmap_single.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/ia64/kernel/pci-dma.c')
| -rw-r--r-- | arch/ia64/kernel/pci-dma.c | 49 |
1 files changed, 31 insertions, 18 deletions
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c index 640669eba5d4..b30209ec8c6e 100644 --- a/arch/ia64/kernel/pci-dma.c +++ b/arch/ia64/kernel/pci-dma.c @@ -41,21 +41,7 @@ struct device fallback_dev = { .dma_mask = &fallback_dev.coherent_dma_mask, }; -extern struct dma_mapping_ops vtd_dma_ops; - -void __init pci_iommu_alloc(void) -{ - dma_ops = &vtd_dma_ops; - /* - * The order of these functions is important for - * fall-back/fail-over reasons - */ - detect_intel_iommu(); - -#ifdef CONFIG_SWIOTLB - pci_swiotlb_init(); -#endif -} +extern struct dma_map_ops intel_dma_ops; static int __init pci_iommu_init(void) { @@ -81,10 +67,10 @@ iommu_dma_init(void) int iommu_dma_supported(struct device *dev, u64 mask) { - struct dma_mapping_ops *ops = platform_dma_get_ops(dev); + struct dma_map_ops *ops = platform_dma_get_ops(dev); - if (ops->dma_supported_op) - return ops->dma_supported_op(dev, mask); + if (ops->dma_supported) + return ops->dma_supported(dev, mask); /* Copied from i386. Doesn't make much sense, because it will only work for pci_alloc_coherent. @@ -113,4 +99,31 @@ int iommu_dma_supported(struct device *dev, u64 mask) } EXPORT_SYMBOL(iommu_dma_supported); +static int vtd_dma_mapping_error(struct device *dev, dma_addr_t dma_addr) +{ + return 0; +} + +void __init pci_iommu_alloc(void) +{ + dma_ops = &intel_dma_ops; + + dma_ops->sync_single_for_cpu = machvec_dma_sync_single; + dma_ops->sync_sg_for_cpu = machvec_dma_sync_sg; + dma_ops->sync_single_for_device = machvec_dma_sync_single; + dma_ops->sync_sg_for_device = machvec_dma_sync_sg; + dma_ops->dma_supported = iommu_dma_supported; + dma_ops->mapping_error = vtd_dma_mapping_error; + + /* + * The order of these functions is important for + * fall-back/fail-over reasons + */ + detect_intel_iommu(); + +#ifdef CONFIG_SWIOTLB + pci_swiotlb_init(); +#endif +} + #endif |