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| author | Joerg Roedel <joerg.roedel@amd.com> | 2008-10-16 09:02:14 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-16 22:21:33 +0400 |
| commit | 0fcff28f47194445f37264d750dbb13d3d894d0b (patch) | |
| tree | a8342a657466032a9afc83fc53bb90eb24330a7f /arch/sparc64 | |
| parent | eb117d3e519f99567ddd2c86386a6e64c6e471cd (diff) | |
| download | linux-0fcff28f47194445f37264d750dbb13d3d894d0b.tar.xz | |
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>
Diffstat (limited to 'arch/sparc64')
| -rw-r--r-- | arch/sparc64/kernel/iommu.c | 7 | ||||
| -rw-r--r-- | arch/sparc64/kernel/iommu_common.h | 14 | ||||
| -rw-r--r-- | arch/sparc64/kernel/pci_sun4v.c | 7 |
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); |