From 160c1d8e40866edfeae7d68816b7005d70acf391 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Mon, 5 Jan 2009 23:59:02 +0900 Subject: 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 Acked-by: Tony Luck Signed-off-by: Ingo Molnar --- arch/ia64/kernel/dma-mapping.c | 4 ++-- arch/ia64/kernel/machvec.c | 8 ++++--- arch/ia64/kernel/pci-dma.c | 49 ++++++++++++++++++++++++++---------------- arch/ia64/kernel/pci-swiotlb.c | 32 ++++++++++++++++++--------- 4 files changed, 60 insertions(+), 33 deletions(-) (limited to 'arch/ia64/kernel') diff --git a/arch/ia64/kernel/dma-mapping.c b/arch/ia64/kernel/dma-mapping.c index 427f69617226..7060e13fa421 100644 --- a/arch/ia64/kernel/dma-mapping.c +++ b/arch/ia64/kernel/dma-mapping.c @@ -1,9 +1,9 @@ #include -struct dma_mapping_ops *dma_ops; +struct dma_map_ops *dma_ops; EXPORT_SYMBOL(dma_ops); -struct dma_mapping_ops *dma_get_ops(struct device *dev) +struct dma_map_ops *dma_get_ops(struct device *dev) { return dma_ops; } diff --git a/arch/ia64/kernel/machvec.c b/arch/ia64/kernel/machvec.c index 7ccb228ceedc..d41a40ef80c0 100644 --- a/arch/ia64/kernel/machvec.c +++ b/arch/ia64/kernel/machvec.c @@ -1,5 +1,5 @@ #include - +#include #include #include @@ -75,14 +75,16 @@ machvec_timer_interrupt (int irq, void *dev_id) EXPORT_SYMBOL(machvec_timer_interrupt); void -machvec_dma_sync_single (struct device *hwdev, dma_addr_t dma_handle, size_t size, int dir) +machvec_dma_sync_single(struct device *hwdev, dma_addr_t dma_handle, size_t size, + enum dma_data_direction dir) { mb(); } EXPORT_SYMBOL(machvec_dma_sync_single); void -machvec_dma_sync_sg (struct device *hwdev, struct scatterlist *sg, int n, int dir) +machvec_dma_sync_sg(struct device *hwdev, struct scatterlist *sg, int n, + enum dma_data_direction dir) { mb(); } 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 diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c index 9f172c864377..6bf8f66786bd 100644 --- a/arch/ia64/kernel/pci-swiotlb.c +++ b/arch/ia64/kernel/pci-swiotlb.c @@ -16,24 +16,36 @@ EXPORT_SYMBOL(swiotlb); /* Set this to 1 if there is a HW IOMMU in the system */ int iommu_detected __read_mostly; -struct dma_mapping_ops swiotlb_dma_ops = { +static dma_addr_t swiotlb_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction dir, + struct dma_attrs *attrs) +{ + return swiotlb_map_single_attrs(dev, page_address(page) + offset, size, + dir, attrs); +} + +static void swiotlb_unmap_page(struct device *dev, dma_addr_t dma_handle, + size_t size, enum dma_data_direction dir, + struct dma_attrs *attrs) +{ + swiotlb_unmap_single_attrs(dev, dma_handle, size, dir, attrs); +} + +struct dma_map_ops swiotlb_dma_ops = { .alloc_coherent = swiotlb_alloc_coherent, .free_coherent = swiotlb_free_coherent, - .map_single = swiotlb_map_single, - .unmap_single = swiotlb_unmap_single, - .map_single_attrs = swiotlb_map_single_attrs, - .unmap_single_attrs = swiotlb_unmap_single_attrs, - .map_sg_attrs = swiotlb_map_sg_attrs, - .unmap_sg_attrs = swiotlb_unmap_sg_attrs, + .map_page = swiotlb_map_page, + .unmap_page = swiotlb_unmap_page, + .map_sg = swiotlb_map_sg_attrs, + .unmap_sg = swiotlb_unmap_sg_attrs, .sync_single_for_cpu = swiotlb_sync_single_for_cpu, .sync_single_for_device = swiotlb_sync_single_for_device, .sync_single_range_for_cpu = swiotlb_sync_single_range_for_cpu, .sync_single_range_for_device = swiotlb_sync_single_range_for_device, .sync_sg_for_cpu = swiotlb_sync_sg_for_cpu, .sync_sg_for_device = swiotlb_sync_sg_for_device, - .map_sg = swiotlb_map_sg, - .unmap_sg = swiotlb_unmap_sg, - .dma_supported_op = swiotlb_dma_supported, + .dma_supported = swiotlb_dma_supported, .mapping_error = swiotlb_dma_mapping_error, }; -- cgit v1.2.1