diff options
Diffstat (limited to 'arch/s390/pci/pci_dma.c')
| -rw-r--r-- | arch/s390/pci/pci_dma.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c index c64b4b294b0..6138468b420 100644 --- a/arch/s390/pci/pci_dma.c +++ b/arch/s390/pci/pci_dma.c @@ -291,8 +291,10 @@ static dma_addr_t s390_dma_map_pages(struct device *dev, struct page *page, if (direction == DMA_NONE || direction == DMA_TO_DEVICE) flags |= ZPCI_TABLE_PROTECTED; - if (!dma_update_trans(zdev, pa, dma_addr, size, flags)) + if (!dma_update_trans(zdev, pa, dma_addr, size, flags)) { + atomic64_add(nr_pages, (atomic64_t *) &zdev->fmb->mapped_pages); return dma_addr + offset; + } out_free: dma_free_iommu(zdev, iommu_page_index, nr_pages); @@ -315,6 +317,7 @@ static void s390_dma_unmap_pages(struct device *dev, dma_addr_t dma_addr, ZPCI_TABLE_PROTECTED | ZPCI_PTE_INVALID)) dev_err(dev, "Failed to unmap addr: %Lx\n", dma_addr); + atomic64_add(npages, (atomic64_t *) &zdev->fmb->unmapped_pages); iommu_page_index = (dma_addr - zdev->start_dma) >> PAGE_SHIFT; dma_free_iommu(zdev, iommu_page_index, npages); } @@ -323,6 +326,7 @@ static void *s390_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs) { + struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev)); struct page *page; unsigned long pa; dma_addr_t map; @@ -331,6 +335,8 @@ static void *s390_dma_alloc(struct device *dev, size_t size, page = alloc_pages(flag, get_order(size)); if (!page) return NULL; + + atomic64_add(size / PAGE_SIZE, (atomic64_t *) &zdev->fmb->allocated_pages); pa = page_to_phys(page); memset((void *) pa, 0, size); |