Merge remote-tracking branches 'spi/topic/drivers', 'spi/topic/dw', 'spi/topic/efm32...

[firefly-linux-kernel-4.4.55.git] / arch / s390 / pci / pci_dma.c

diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c
index 60c11a629d96d0220d6b01cf1e1425d41c0ffaab..f91c03119804751894c39433eb52da1844dbcf3b 100644 (file)
--- a/arch/s390/pci/pci_dma.c
+++ b/arch/s390/pci/pci_dma.c
@@ -206,11 +206,13 @@ static void dma_cleanup_tables(struct zpci_dev *zdev)
        zdev->dma_table = NULL;
 }
 
-static unsigned long __dma_alloc_iommu(struct zpci_dev *zdev, unsigned long start,
-                                  int size)
+static unsigned long __dma_alloc_iommu(struct zpci_dev *zdev,
+                                      unsigned long start, int size)
 {
-       unsigned long boundary_size = 0x1000000;
+       unsigned long boundary_size;
 
+       boundary_size = ALIGN(dma_get_seg_boundary(&zdev->pdev->dev) + 1,
+                             PAGE_SIZE) >> PAGE_SHIFT;
        return iommu_area_alloc(zdev->iommu_bitmap, zdev->iommu_pages,
                                start, size, 0, boundary_size, 0);
 }