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authorLinus Torvalds <torvalds@linux-foundation.org>2009-09-11 16:16:37 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-11 16:16:37 -0400
commita66a50054e46ec2a03244bc14c48b9125fcd75a7 (patch)
treeab549e4762a89d76846f104162d8f65b52c41a69 /arch/sparc/kernel/iommu.c
parent7193bea53f9d9730bbc859777c2f86c76349914d (diff)
parent695a461296e5df148c99ac087b9e1cb380f4db15 (diff)
Merge branch 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (59 commits) x86/gart: Do not select AGP for GART_IOMMU x86/amd-iommu: Initialize passthrough mode when requested x86/amd-iommu: Don't detach device from pt domain on driver unbind x86/amd-iommu: Make sure a device is assigned in passthrough mode x86/amd-iommu: Align locking between attach_device and detach_device x86/amd-iommu: Fix device table write order x86/amd-iommu: Add passthrough mode initialization functions x86/amd-iommu: Add core functions for pd allocation/freeing x86/dma: Mark iommu_pass_through as __read_mostly x86/amd-iommu: Change iommu_map_page to support multiple page sizes x86/amd-iommu: Support higher level PTEs in iommu_page_unmap x86/amd-iommu: Remove old page table handling macros x86/amd-iommu: Use 2-level page tables for dma_ops domains x86/amd-iommu: Remove bus_addr check in iommu_map_page x86/amd-iommu: Remove last usages of IOMMU_PTE_L0_INDEX x86/amd-iommu: Change alloc_pte to support 64 bit address space x86/amd-iommu: Introduce increase_address_space function x86/amd-iommu: Flush domains if address space size was increased x86/amd-iommu: Introduce set_dte_entry function x86/amd-iommu: Add a gneric version of amd_iommu_flush_all_devices ...
Diffstat (limited to 'arch/sparc/kernel/iommu.c')
-rw-r--r--arch/sparc/kernel/iommu.c20
1 files changed, 13 insertions, 7 deletions
diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c
index 0aeaefe696b9..7690cc219ecc 100644
--- a/arch/sparc/kernel/iommu.c
+++ b/arch/sparc/kernel/iommu.c
@@ -353,7 +353,8 @@ static void dma_4u_free_coherent(struct device *dev, size_t size,
353 353
354static dma_addr_t dma_4u_map_page(struct device *dev, struct page *page, 354static dma_addr_t dma_4u_map_page(struct device *dev, struct page *page,
355 unsigned long offset, size_t sz, 355 unsigned long offset, size_t sz,
356 enum dma_data_direction direction) 356 enum dma_data_direction direction,
357 struct dma_attrs *attrs)
357{ 358{
358 struct iommu *iommu; 359 struct iommu *iommu;
359 struct strbuf *strbuf; 360 struct strbuf *strbuf;
@@ -474,7 +475,8 @@ do_flush_sync:
474} 475}
475 476
476static void dma_4u_unmap_page(struct device *dev, dma_addr_t bus_addr, 477static void dma_4u_unmap_page(struct device *dev, dma_addr_t bus_addr,
477 size_t sz, enum dma_data_direction direction) 478 size_t sz, enum dma_data_direction direction,
479 struct dma_attrs *attrs)
478{ 480{
479 struct iommu *iommu; 481 struct iommu *iommu;
480 struct strbuf *strbuf; 482 struct strbuf *strbuf;
@@ -520,7 +522,8 @@ static void dma_4u_unmap_page(struct device *dev, dma_addr_t bus_addr,
520} 522}
521 523
522static int dma_4u_map_sg(struct device *dev, struct scatterlist *sglist, 524static int dma_4u_map_sg(struct device *dev, struct scatterlist *sglist,
523 int nelems, enum dma_data_direction direction) 525 int nelems, enum dma_data_direction direction,
526 struct dma_attrs *attrs)
524{ 527{
525 struct scatterlist *s, *outs, *segstart; 528 struct scatterlist *s, *outs, *segstart;
526 unsigned long flags, handle, prot, ctx; 529 unsigned long flags, handle, prot, ctx;
@@ -691,7 +694,8 @@ static unsigned long fetch_sg_ctx(struct iommu *iommu, struct scatterlist *sg)
691} 694}
692 695
693static void dma_4u_unmap_sg(struct device *dev, struct scatterlist *sglist, 696static void dma_4u_unmap_sg(struct device *dev, struct scatterlist *sglist,
694 int nelems, enum dma_data_direction direction) 697 int nelems, enum dma_data_direction direction,
698 struct dma_attrs *attrs)
695{ 699{
696 unsigned long flags, ctx; 700 unsigned long flags, ctx;
697 struct scatterlist *sg; 701 struct scatterlist *sg;
@@ -822,7 +826,7 @@ static void dma_4u_sync_sg_for_cpu(struct device *dev,
822 spin_unlock_irqrestore(&iommu->lock, flags); 826 spin_unlock_irqrestore(&iommu->lock, flags);
823} 827}
824 828
825static const struct dma_ops sun4u_dma_ops = { 829static struct dma_map_ops sun4u_dma_ops = {
826 .alloc_coherent = dma_4u_alloc_coherent, 830 .alloc_coherent = dma_4u_alloc_coherent,
827 .free_coherent = dma_4u_free_coherent, 831 .free_coherent = dma_4u_free_coherent,
828 .map_page = dma_4u_map_page, 832 .map_page = dma_4u_map_page,
@@ -833,9 +837,11 @@ static const struct dma_ops sun4u_dma_ops = {
833 .sync_sg_for_cpu = dma_4u_sync_sg_for_cpu, 837 .sync_sg_for_cpu = dma_4u_sync_sg_for_cpu,
834}; 838};
835 839
836const struct dma_ops *dma_ops = &sun4u_dma_ops; 840struct dma_map_ops *dma_ops = &sun4u_dma_ops;
837EXPORT_SYMBOL(dma_ops); 841EXPORT_SYMBOL(dma_ops);
838 842
843extern int pci64_dma_supported(struct pci_dev *pdev, u64 device_mask);
844
839int dma_supported(struct device *dev, u64 device_mask) 845int dma_supported(struct device *dev, u64 device_mask)
840{ 846{
841 struct iommu *iommu = dev->archdata.iommu; 847 struct iommu *iommu = dev->archdata.iommu;
@@ -849,7 +855,7 @@ int dma_supported(struct device *dev, u64 device_mask)
849 855
850#ifdef CONFIG_PCI 856#ifdef CONFIG_PCI
851 if (dev->bus == &pci_bus_type) 857 if (dev->bus == &pci_bus_type)
852 return pci_dma_supported(to_pci_dev(dev), device_mask); 858 return pci64_dma_supported(to_pci_dev(dev), device_mask);
853#endif 859#endif
854 860
855 return 0; 861 return 0;