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authorLinus Torvalds <torvalds@linux-foundation.org>2009-03-30 13:41:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-03-30 13:41:00 -0700
commit712b0006bf3a9ed0b14a56c3291975e582127766 (patch)
treeaff33e947673137ae21734321e1f036600297223 /drivers/pci/intel-iommu.c
parente1c502482853f84606928f5a2f2eb6da1993cda1 (diff)
parentb0d44c0dbbd52effb731b1c0af9afd56215c48de (diff)
Merge branch 'iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (60 commits) dma-debug: make memory range checks more consistent dma-debug: warn of unmapping an invalid dma address dma-debug: fix dma_debug_add_bus() definition for !CONFIG_DMA_API_DEBUG dma-debug/x86: register pci bus for dma-debug leak detection dma-debug: add a check dma memory leaks dma-debug: add checks for kernel text and rodata dma-debug: print stacktrace of mapping path on unmap error dma-debug: Documentation update dma-debug: x86 architecture bindings dma-debug: add function to dump dma mappings dma-debug: add checks for sync_single_sg_* dma-debug: add checks for sync_single_range_* dma-debug: add checks for sync_single_* dma-debug: add checking for [alloc|free]_coherent dma-debug: add add checking for map/unmap_sg dma-debug: add checking for map/unmap_page/single dma-debug: add core checking functions dma-debug: add debugfs interface dma-debug: add kernel command line parameters dma-debug: add initialization code ... Fix trivial conflicts due to whitespace changes in arch/x86/kernel/pci-nommu.c
Diffstat (limited to 'drivers/pci/intel-iommu.c')
-rw-r--r--drivers/pci/intel-iommu.c50
1 files changed, 33 insertions, 17 deletions
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index ef167b8b047..49402c39923 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -2124,11 +2124,13 @@ error:
return 0;
}
-dma_addr_t intel_map_single(struct device *hwdev, phys_addr_t paddr,
- size_t size, int dir)
+static dma_addr_t intel_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size,
+ enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
- return __intel_map_single(hwdev, paddr, size, dir,
- to_pci_dev(hwdev)->dma_mask);
+ return __intel_map_single(dev, page_to_phys(page) + offset, size,
+ dir, to_pci_dev(dev)->dma_mask);
}
static void flush_unmaps(void)
@@ -2192,8 +2194,9 @@ static void add_unmap(struct dmar_domain *dom, struct iova *iova)
spin_unlock_irqrestore(&async_umap_flush_lock, flags);
}
-void intel_unmap_single(struct device *dev, dma_addr_t dev_addr, size_t size,
- int dir)
+static void intel_unmap_page(struct device *dev, dma_addr_t dev_addr,
+ size_t size, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct dmar_domain *domain;
@@ -2237,8 +2240,14 @@ void intel_unmap_single(struct device *dev, dma_addr_t dev_addr, size_t size,
}
}
-void *intel_alloc_coherent(struct device *hwdev, size_t size,
- dma_addr_t *dma_handle, gfp_t flags)
+static void intel_unmap_single(struct device *dev, dma_addr_t dev_addr, size_t size,
+ int dir)
+{
+ intel_unmap_page(dev, dev_addr, size, dir, NULL);
+}
+
+static void *intel_alloc_coherent(struct device *hwdev, size_t size,
+ dma_addr_t *dma_handle, gfp_t flags)
{
void *vaddr;
int order;
@@ -2261,8 +2270,8 @@ void *intel_alloc_coherent(struct device *hwdev, size_t size,
return NULL;
}
-void intel_free_coherent(struct device *hwdev, size_t size, void *vaddr,
- dma_addr_t dma_handle)
+static void intel_free_coherent(struct device *hwdev, size_t size, void *vaddr,
+ dma_addr_t dma_handle)
{
int order;
@@ -2275,8 +2284,9 @@ void intel_free_coherent(struct device *hwdev, size_t size, void *vaddr,
#define SG_ENT_VIRT_ADDRESS(sg) (sg_virt((sg)))
-void intel_unmap_sg(struct device *hwdev, struct scatterlist *sglist,
- int nelems, int dir)
+static void intel_unmap_sg(struct device *hwdev, struct scatterlist *sglist,
+ int nelems, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
int i;
struct pci_dev *pdev = to_pci_dev(hwdev);
@@ -2333,8 +2343,8 @@ static int intel_nontranslate_map_sg(struct device *hddev,
return nelems;
}
-int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int nelems,
- int dir)
+static int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int nelems,
+ enum dma_data_direction dir, struct dma_attrs *attrs)
{
void *addr;
int i;
@@ -2414,13 +2424,19 @@ int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int nelems,
return nelems;
}
-static struct dma_mapping_ops intel_dma_ops = {
+static int intel_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+ return !dma_addr;
+}
+
+struct dma_map_ops intel_dma_ops = {
.alloc_coherent = intel_alloc_coherent,
.free_coherent = intel_free_coherent,
- .map_single = intel_map_single,
- .unmap_single = intel_unmap_single,
.map_sg = intel_map_sg,
.unmap_sg = intel_unmap_sg,
+ .map_page = intel_map_page,
+ .unmap_page = intel_unmap_page,
+ .mapping_error = intel_mapping_error,
};
static inline int iommu_domain_cache_init(void)