x86: convert GART driver to generic iommu_num_pages function

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: Dave Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index 14f1b41..e3f75bb 100644 (file)
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -231,7 +231,7 @@ nonforced_iommu(struct device *dev, unsigned long addr, size_t size)
 static dma_addr_t dma_map_area(struct device *dev, dma_addr_t phys_mem,
                                size_t size, int dir, unsigned long align_mask)
 {
-       unsigned long npages = iommu_nr_pages(phys_mem, size);
+       unsigned long npages = iommu_num_pages(phys_mem, size, PAGE_SIZE);
        unsigned long iommu_page = alloc_iommu(dev, npages, align_mask);
        int i;
 
@@ -285,7 +285,7 @@ static void gart_unmap_single(struct device *dev, dma_addr_t dma_addr,
                return;
 
        iommu_page = (dma_addr - iommu_bus_base)>>PAGE_SHIFT;
-       npages = iommu_nr_pages(dma_addr, size);
+       npages = iommu_num_pages(dma_addr, size, PAGE_SIZE);
        for (i = 0; i < npages; i++) {
                iommu_gatt_base[iommu_page + i] = gart_unmapped_entry;
                CLEAR_LEAK(iommu_page + i);
@@ -368,7 +368,7 @@ static int __dma_map_cont(struct device *dev, struct scatterlist *start,
                }
 
                addr = phys_addr;
-               pages = iommu_nr_pages(s->offset, s->length);
+               pages = iommu_num_pages(s->offset, s->length, PAGE_SIZE);
                while (pages--) {
                        iommu_gatt_base[iommu_page] = GPTE_ENCODE(addr);
                        SET_LEAK(iommu_page);
@@ -451,7 +451,7 @@ gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, int dir)
 
                seg_size += s->length;
                need = nextneed;
-               pages += iommu_nr_pages(s->offset, s->length);
+               pages += iommu_num_pages(s->offset, s->length, PAGE_SIZE);
                ps = s;
        }
        if (dma_map_cont(dev, start_sg, i - start, sgmap, pages, need) < 0)