net: aquantia: fix limit of vlan filters

[linux.git] / drivers / iommu / dma-iommu.c

diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index a7f9c3edbcb299f83f8d4c6093c274a0bc5b3387..f68a62c3c32b55e1414ee5eff0cc34a452f38489 100644 (file)
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -459,13 +459,11 @@ static dma_addr_t __iommu_dma_map(struct device *dev, phys_addr_t phys,
 {
        struct iommu_domain *domain = iommu_get_dma_domain(dev);
        struct iommu_dma_cookie *cookie = domain->iova_cookie;
-       size_t iova_off = 0;
+       struct iova_domain *iovad = &cookie->iovad;
+       size_t iova_off = iova_offset(iovad, phys);
        dma_addr_t iova;
 
-       if (cookie->type == IOMMU_DMA_IOVA_COOKIE) {
-               iova_off = iova_offset(&cookie->iovad, phys);
-               size = iova_align(&cookie->iovad, size + iova_off);
-       }
+       size = iova_align(iovad, size + iova_off);
 
        iova = iommu_dma_alloc_iova(domain, size, dma_get_mask(dev), dev);
        if (!iova)
@@ -574,7 +572,7 @@ static void *iommu_dma_alloc_remap(struct device *dev, size_t size,
        struct iova_domain *iovad = &cookie->iovad;
        bool coherent = dev_is_dma_coherent(dev);
        int ioprot = dma_info_to_prot(DMA_BIDIRECTIONAL, coherent, attrs);
-       pgprot_t prot = arch_dma_mmap_pgprot(dev, PAGE_KERNEL, attrs);
+       pgprot_t prot = dma_pgprot(dev, PAGE_KERNEL, attrs);
        unsigned int count, min_size, alloc_sizes = domain->pgsize_bitmap;
        struct page **pages;
        struct sg_table sgt;
@@ -764,7 +762,7 @@ static int __finalise_sg(struct device *dev, struct scatterlist *sg, int nents,
                 * - and wouldn't make the resulting output segment too long
                 */
                if (cur_len && !s_iova_off && (dma_addr & seg_mask) &&
-                   (cur_len + s_length <= max_len)) {
+                   (max_len - cur_len >= s_length)) {
                        /* ...then concatenate it with the previous one */
                        cur_len += s_length;
                } else {
@@ -967,15 +965,18 @@ static void *iommu_dma_alloc_pages(struct device *dev, size_t size,
 {
        bool coherent = dev_is_dma_coherent(dev);
        size_t alloc_size = PAGE_ALIGN(size);
+       int node = dev_to_node(dev);
        struct page *page = NULL;
        void *cpu_addr;
 
        page = dma_alloc_contiguous(dev, alloc_size, gfp);
+       if (!page)
+               page = alloc_pages_node(node, gfp, get_order(alloc_size));
        if (!page)
                return NULL;
 
        if (IS_ENABLED(CONFIG_DMA_REMAP) && (!coherent || PageHighMem(page))) {
-               pgprot_t prot = arch_dma_mmap_pgprot(dev, PAGE_KERNEL, attrs);
+               pgprot_t prot = dma_pgprot(dev, PAGE_KERNEL, attrs);
 
                cpu_addr = dma_common_contiguous_remap(page, alloc_size,
                                VM_USERMAP, prot, __builtin_return_address(0));
@@ -1035,7 +1036,7 @@ static int iommu_dma_mmap(struct device *dev, struct vm_area_struct *vma,
        unsigned long pfn, off = vma->vm_pgoff;
        int ret;
 
-       vma->vm_page_prot = arch_dma_mmap_pgprot(dev, vma->vm_page_prot, attrs);
+       vma->vm_page_prot = dma_pgprot(dev, vma->vm_page_prot, attrs);
 
        if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
                return ret;
@@ -1147,16 +1148,21 @@ static struct iommu_dma_msi_page *iommu_dma_get_msi_page(struct device *dev,
        if (!msi_page)
                return NULL;
 
-       iova = __iommu_dma_map(dev, msi_addr, size, prot);
-       if (iova == DMA_MAPPING_ERROR)
+       iova = iommu_dma_alloc_iova(domain, size, dma_get_mask(dev), dev);
+       if (!iova)
                goto out_free_page;
 
+       if (iommu_map(domain, iova, msi_addr, size, prot))
+               goto out_free_iova;
+
        INIT_LIST_HEAD(&msi_page->list);
        msi_page->phys = msi_addr;
        msi_page->iova = iova;
        list_add(&msi_page->list, &cookie->msi_page_list);
        return msi_page;
 
+out_free_iova:
+       iommu_dma_free_iova(cookie, iova, size);
 out_free_page:
        kfree(msi_page);
        return NULL;