Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds

[linux-2.6-omap-h63xx.git] / drivers / pci / intel-iommu.c

diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index 2bf96babbc4feddd75f654971620e2330b42d042..a2692724b68ffe04382bdd8a2d15c4774511c47d 100644 (file)
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -566,7 +566,7 @@ static int __iommu_flush_context(struct intel_iommu *iommu,
 
        spin_unlock_irqrestore(&iommu->register_lock, flag);
 
-       /* flush context entry will implictly flush write buffer */
+       /* flush context entry will implicitly flush write buffer */
        return 0;
 }
 
@@ -639,7 +639,7 @@ static int __iommu_flush_iotlb(struct intel_iommu *iommu, u16 did,
                pr_debug("IOMMU: tlb flush request %Lx, actual %Lx\n",
                        (unsigned long long)DMA_TLB_IIRG(type),
                        (unsigned long long)DMA_TLB_IAIG(val));
-       /* flush context entry will implictly flush write buffer */
+       /* flush iotlb entry will implicitly flush write buffer */
        return 0;
 }
 
@@ -1762,14 +1762,14 @@ iommu_alloc_iova(struct dmar_domain *domain, size_t size, u64 end)
 
 static struct iova *
 __intel_alloc_iova(struct device *dev, struct dmar_domain *domain,
-               size_t size)
+                  size_t size, u64 dma_mask)
 {
        struct pci_dev *pdev = to_pci_dev(dev);
        struct iova *iova = NULL;
 
-       if ((pdev->dma_mask <= DMA_32BIT_MASK) || (dmar_forcedac)) {
-               iova = iommu_alloc_iova(domain, size, pdev->dma_mask);
-       } else  {
+       if (dma_mask <= DMA_32BIT_MASK || dmar_forcedac)
+               iova = iommu_alloc_iova(domain, size, dma_mask);
+       else {
                /*
                 * First try to allocate an io virtual address in
                 * DMA_32BIT_MASK and if that fails then try allocating
@@ -1777,7 +1777,7 @@ __intel_alloc_iova(struct device *dev, struct dmar_domain *domain,
                 */
                iova = iommu_alloc_iova(domain, size, DMA_32BIT_MASK);
                if (!iova)
-                       iova = iommu_alloc_iova(domain, size, pdev->dma_mask);
+                       iova = iommu_alloc_iova(domain, size, dma_mask);
        }
 
        if (!iova) {
@@ -1816,8 +1816,8 @@ get_valid_domain_for_dev(struct pci_dev *pdev)
        return domain;
 }
 
-dma_addr_t
-intel_map_single(struct device *hwdev, phys_addr_t paddr, size_t size, int dir)
+static dma_addr_t __intel_map_single(struct device *hwdev, phys_addr_t paddr,
+                                    size_t size, int dir, u64 dma_mask)
 {
        struct pci_dev *pdev = to_pci_dev(hwdev);
        struct dmar_domain *domain;
@@ -1836,7 +1836,7 @@ intel_map_single(struct device *hwdev, phys_addr_t paddr, size_t size, int dir)
 
        size = aligned_size((u64)paddr, size);
 
-       iova = __intel_alloc_iova(hwdev, domain, size);
+       iova = __intel_alloc_iova(hwdev, domain, size, pdev->dma_mask);
        if (!iova)
                goto error;
 
@@ -1878,6 +1878,13 @@ error:
        return 0;
 }
 
+dma_addr_t intel_map_single(struct device *hwdev, phys_addr_t paddr,
+                           size_t size, int dir)
+{
+       return __intel_map_single(hwdev, paddr, size, dir,
+                                 to_pci_dev(hwdev)->dma_mask);
+}
+
 static void flush_unmaps(void)
 {
        int i, j;
@@ -1993,7 +2000,9 @@ void *intel_alloc_coherent(struct device *hwdev, size_t size,
                return NULL;
        memset(vaddr, 0, size);
 
-       *dma_handle = intel_map_single(hwdev, virt_to_bus(vaddr), size, DMA_BIDIRECTIONAL);
+       *dma_handle = __intel_map_single(hwdev, virt_to_bus(vaddr), size,
+                                        DMA_BIDIRECTIONAL,
+                                        hwdev->coherent_dma_mask);
        if (*dma_handle)
                return vaddr;
        free_pages((unsigned long)vaddr, order);
@@ -2097,7 +2106,7 @@ int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int nelems,
                size += aligned_size((u64)addr, sg->length);
        }
 
-       iova = __intel_alloc_iova(hwdev, domain, size);
+       iova = __intel_alloc_iova(hwdev, domain, size, pdev->dma_mask);
        if (!iova) {
                sglist->dma_length = 0;
                return 0;