sparc64: use iommu_num_pages function in IOMMU code

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

3 files changed, 10 insertions, 18 deletions

diff --git a/arch/sparc64/kernel/iommu.c b/arch/sparc64/kernel/iommu.c
index f73b238cd2d4..1cc1995531e2 100644
--- a/arch/sparc64/kernel/iommu.c
+++ b/arch/sparc64/kernel/iommu.c
@@ -575,7 +575,7 @@ static int dma_4u_map_sg(struct device *dev, struct scatterlist *sglist,
                 }
                 /* Allocate iommu entries for that segment */
                 paddr = (unsigned long) SG_ENT_PHYS_ADDRESS(s);
-                npages = iommu_nr_pages(paddr, slen);
+                npages = iommu_num_pages(paddr, slen, IO_PAGE_SIZE);
                 entry = iommu_range_alloc(dev, iommu, npages, &handle);
 
                 /* Handle failure */
@@ -647,7 +647,8 @@ iommu_map_failed:
                         iopte_t *base;
 
                         vaddr = s->dma_address & IO_PAGE_MASK;
-                        npages = iommu_nr_pages(s->dma_address, s->dma_length);
+                        npages = iommu_num_pages(s->dma_address, s->dma_length,
+                                                 IO_PAGE_SIZE);
                         iommu_range_free(iommu, vaddr, npages);
 
                         entry = (vaddr - iommu->page_table_map_base)
@@ -715,7 +716,7 @@ static void dma_4u_unmap_sg(struct device *dev, struct scatterlist *sglist,
 
                 if (!len)
                         break;
-                npages = iommu_nr_pages(dma_handle, len);
+                npages = iommu_num_pages(dma_handle, len, IO_PAGE_SIZE);
                 iommu_range_free(iommu, dma_handle, npages);
 
                 entry = ((dma_handle - iommu->page_table_map_base)
diff --git a/arch/sparc64/kernel/iommu_common.h b/arch/sparc64/kernel/iommu_common.h
index 202d8ae2a67e..591f5879039c 100644
--- a/arch/sparc64/kernel/iommu_common.h
+++ b/arch/sparc64/kernel/iommu_common.h
@@ -35,17 +35,6 @@
 
 #define SG_ENT_PHYS_ADDRESS(SG) (__pa(sg_virt((SG))))
 
-static inline unsigned long iommu_nr_pages(unsigned long vaddr,
-                                            unsigned long slen)
-{
-        unsigned long npages;
-
-        npages = IO_PAGE_ALIGN(vaddr + slen) - (vaddr & IO_PAGE_MASK);
-        npages >>= IO_PAGE_SHIFT;
-
-        return npages;
-}
-
 static inline int is_span_boundary(unsigned long entry,
                                    unsigned long shift,
                                    unsigned long boundary_size,
@@ -53,7 +42,8 @@ static inline int is_span_boundary(unsigned long entry,
                                    struct scatterlist *sg)
 {
         unsigned long paddr = SG_ENT_PHYS_ADDRESS(outs);
-        int nr = iommu_nr_pages(paddr, outs->dma_length + sg->length);
+        int nr = iommu_num_pages(paddr, outs->dma_length + sg->length,
+                                 IO_PAGE_SIZE);
 
         return iommu_is_span_boundary(entry, nr, shift, boundary_size);
 }
diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c
index e24495407e89..34a1fded3941 100644
--- a/arch/sparc64/kernel/pci_sun4v.c
+++ b/arch/sparc64/kernel/pci_sun4v.c
@@ -384,7 +384,7 @@ static int dma_4v_map_sg(struct device *dev, struct scatterlist *sglist,
                 }
                 /* Allocate iommu entries for that segment */
                 paddr = (unsigned long) SG_ENT_PHYS_ADDRESS(s);
-                npages = iommu_nr_pages(paddr, slen);
+                npages = iommu_num_pages(paddr, slen, IO_PAGE_SIZE);
                 entry = iommu_range_alloc(dev, iommu, npages, &handle);
 
                 /* Handle failure */
@@ -461,7 +461,8 @@ iommu_map_failed:
                         unsigned long vaddr, npages;
 
                         vaddr = s->dma_address & IO_PAGE_MASK;
-                        npages = iommu_nr_pages(s->dma_address, s->dma_length);
+                        npages = iommu_num_pages(s->dma_address, s->dma_length,
+                                                 IO_PAGE_SIZE);
                         iommu_range_free(iommu, vaddr, npages);
                         /* XXX demap? XXX */
                         s->dma_address = DMA_ERROR_CODE;
@@ -500,7 +501,7 @@ static void dma_4v_unmap_sg(struct device *dev, struct scatterlist *sglist,
 
                 if (!len)
                         break;
-                npages = iommu_nr_pages(dma_handle, len);
+                npages = iommu_num_pages(dma_handle, len, IO_PAGE_SIZE);
                 iommu_range_free(iommu, dma_handle, npages);
 
                 entry = ((dma_handle - iommu->page_table_map_base) >> IO_PAGE_SHIFT);