diff options
Diffstat (limited to 'arch/sparc64/kernel/iommu_common.c')
| -rw-r--r-- | arch/sparc64/kernel/iommu_common.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/arch/sparc64/kernel/iommu_common.c b/arch/sparc64/kernel/iommu_common.c index d7ca900ec51..b70324e0d83 100644 --- a/arch/sparc64/kernel/iommu_common.c +++ b/arch/sparc64/kernel/iommu_common.c @@ -73,7 +73,7 @@ static int verify_one_map(struct scatterlist *dma_sg, struct scatterlist **__sg, daddr = dma_sg->dma_address; sglen = sg->length; - sgaddr = (unsigned long) (page_address(sg->page) + sg->offset); + sgaddr = (unsigned long) sg_virt(sg); while (dlen > 0) { unsigned long paddr; @@ -123,7 +123,7 @@ static int verify_one_map(struct scatterlist *dma_sg, struct scatterlist **__sg, sg = sg_next(sg); if (--nents <= 0) break; - sgaddr = (unsigned long) (page_address(sg->page) + sg->offset); + sgaddr = (unsigned long) sg_virt(sg); sglen = sg->length; } if (dlen < 0) { @@ -191,7 +191,7 @@ void verify_sglist(struct scatterlist *sglist, int nents, iopte_t *iopte, int np printk("sg(%d): page_addr(%p) off(%x) length(%x) " "dma_address[%016x] dma_length[%016x]\n", i, - page_address(sg->page), sg->offset, + page_address(sg_page(sg)), sg->offset, sg->length, sg->dma_address, sg->dma_length); } @@ -207,15 +207,14 @@ unsigned long prepare_sg(struct scatterlist *sg, int nents) unsigned long prev; u32 dent_addr, dent_len; - prev = (unsigned long) (page_address(sg->page) + sg->offset); + prev = (unsigned long) sg_virt(sg); prev += (unsigned long) (dent_len = sg->length); - dent_addr = (u32) ((unsigned long)(page_address(sg->page) + sg->offset) - & (IO_PAGE_SIZE - 1UL)); + dent_addr = (u32) ((unsigned long)(sg_virt(sg)) & (IO_PAGE_SIZE - 1UL)); while (--nents) { unsigned long addr; sg = sg_next(sg); - addr = (unsigned long) (page_address(sg->page) + sg->offset); + addr = (unsigned long) sg_virt(sg); if (! VCONTIG(prev, addr)) { dma_sg->dma_address = dent_addr; dma_sg->dma_length = dent_len; @@ -234,6 +233,11 @@ unsigned long prepare_sg(struct scatterlist *sg, int nents) dma_sg->dma_address = dent_addr; dma_sg->dma_length = dent_len; + if (dma_sg != sg) { + dma_sg = next_sg(dma_sg); + dma_sg->dma_length = 0; + } + return ((unsigned long) dent_addr + (unsigned long) dent_len + (IO_PAGE_SIZE - 1UL)) >> IO_PAGE_SHIFT; |