mirror of https://gitee.com/openkylin/linux.git
parisc: Eliminate sg_virt_addr() and private scatterlist.h
The only reason to keep parisc's private asm/scatterlist.h was that it had the macro sg_virt_addr(). Convert all callers to use something else (sometimes just sg->offset was enough, others should use sg_virt()), and we can just use the asm-generic scatterlist.h instead. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Dave Anglin <dave.anglin@bell.net> Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Matthew Wilcox
Helge Deller
parent
1d11437f4f
commit
8bf8a1d1c1
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@ -20,6 +20,7 @@ generic-y += param.h
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generic-y += percpu.h
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generic-y += poll.h
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generic-y += preempt.h
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generic-y += scatterlist.h
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generic-y += seccomp.h
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generic-y += segment.h
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generic-y += topology.h
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@ -1,10 +0,0 @@
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#ifndef _ASM_PARISC_SCATTERLIST_H
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#define _ASM_PARISC_SCATTERLIST_H
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#include <asm/page.h>
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#include <asm/types.h>
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#include <asm-generic/scatterlist.h>
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#define sg_virt_addr(sg) ((unsigned long)sg_virt(sg))
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#endif /* _ASM_PARISC_SCATTERLIST_H */
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@ -482,7 +482,7 @@ static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist, int n
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BUG_ON(direction == DMA_NONE);
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for (i = 0; i < nents; i++, sglist++ ) {
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unsigned long vaddr = sg_virt_addr(sglist);
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unsigned long vaddr = (unsigned long)sg_virt(sglist);
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sg_dma_address(sglist) = (dma_addr_t) virt_to_phys(vaddr);
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sg_dma_len(sglist) = sglist->length;
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flush_kernel_dcache_range(vaddr, sglist->length);
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@ -502,7 +502,7 @@ static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, in
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/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
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for (i = 0; i < nents; i++, sglist++ )
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flush_kernel_dcache_range(sg_virt_addr(sglist), sglist->length);
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flush_kernel_vmap_range(sg_virt(sglist), sglist->length);
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return;
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}
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@ -527,7 +527,7 @@ static void pa11_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sgl
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/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
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for (i = 0; i < nents; i++, sglist++ )
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flush_kernel_dcache_range(sg_virt_addr(sglist), sglist->length);
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flush_kernel_vmap_range(sg_virt(sglist), sglist->length);
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}
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static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist, int nents, enum dma_data_direction direction)
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@ -537,7 +537,7 @@ static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *
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/* once we do combining we'll need to use phys_to_virt(sg_dma_address(sglist)) */
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for (i = 0; i < nents; i++, sglist++ )
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flush_kernel_dcache_range(sg_virt_addr(sglist), sglist->length);
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flush_kernel_vmap_range(sg_virt(sglist), sglist->length);
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}
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struct hppa_dma_ops pcxl_dma_ops = {
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@ -916,7 +916,7 @@ ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
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/* Fast path single entry scatterlists. */
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if (nents == 1) {
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sg_dma_address(sglist) = ccio_map_single(dev,
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(void *)sg_virt_addr(sglist), sglist->length,
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sg_virt(sglist), sglist->length,
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direction);
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sg_dma_len(sglist) = sglist->length;
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return 1;
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@ -983,8 +983,8 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
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BUG_ON(!dev);
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ioc = GET_IOC(dev);
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DBG_RUN_SG("%s() START %d entries, %08lx,%x\n",
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__func__, nents, sg_virt_addr(sglist), sglist->length);
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DBG_RUN_SG("%s() START %d entries, %p,%x\n",
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__func__, nents, sg_virt(sglist), sglist->length);
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#ifdef CCIO_COLLECT_STATS
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ioc->usg_calls++;
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@ -30,9 +30,9 @@ iommu_fill_pdir(struct ioc *ioc, struct scatterlist *startsg, int nents,
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unsigned long vaddr;
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long size;
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DBG_RUN_SG(" %d : %08lx/%05x %08lx/%05x\n", nents,
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DBG_RUN_SG(" %d : %08lx/%05x %p/%05x\n", nents,
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(unsigned long)sg_dma_address(startsg), cnt,
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sg_virt_addr(startsg), startsg->length
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sg_virt(startsg), startsg->length
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);
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@ -66,7 +66,7 @@ iommu_fill_pdir(struct ioc *ioc, struct scatterlist *startsg, int nents,
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BUG_ON(pdirp == NULL);
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vaddr = sg_virt_addr(startsg);
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vaddr = (unsigned long)sg_virt(startsg);
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sg_dma_len(dma_sg) += startsg->length;
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size = startsg->length + dma_offset;
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dma_offset = 0;
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@ -113,7 +113,7 @@ iommu_coalesce_chunks(struct ioc *ioc, struct device *dev,
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*/
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contig_sg = startsg;
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dma_len = startsg->length;
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dma_offset = sg_virt_addr(startsg) & ~IOVP_MASK;
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dma_offset = startsg->offset;
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/* PARANOID: clear entries */
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sg_dma_address(startsg) = 0;
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@ -124,14 +124,13 @@ iommu_coalesce_chunks(struct ioc *ioc, struct device *dev,
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** it's always looking one "ahead".
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*/
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while(--nents > 0) {
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unsigned long prevstartsg_end, startsg_end;
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unsigned long prev_end, sg_start;
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prevstartsg_end = sg_virt_addr(startsg) +
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startsg->length;
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prev_end = (unsigned long)sg_virt(startsg) +
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startsg->length;
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startsg++;
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startsg_end = sg_virt_addr(startsg) +
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startsg->length;
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sg_start = (unsigned long)sg_virt(startsg);
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/* PARANOID: clear entries */
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sg_dma_address(startsg) = 0;
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@ -150,10 +149,13 @@ iommu_coalesce_chunks(struct ioc *ioc, struct device *dev,
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break;
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/*
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** Next see if we can append the next chunk (i.e.
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** it must end on one page and begin on another
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* Next see if we can append the next chunk (i.e.
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* it must end on one page and begin on another, or
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* it must start on the same address as the previous
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* entry ended.
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*/
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if (unlikely(((prevstartsg_end | sg_virt_addr(startsg)) & ~PAGE_MASK) != 0))
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if (unlikely((prev_end != sg_start) ||
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((prev_end | sg_start) & ~PAGE_MASK)))
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break;
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dma_len += startsg->length;
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@ -278,7 +278,7 @@ sba_dump_sg( struct ioc *ioc, struct scatterlist *startsg, int nents)
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nents,
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(unsigned long) sg_dma_address(startsg),
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sg_dma_len(startsg),
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sg_virt_addr(startsg), startsg->length);
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sg_virt(startsg), startsg->length);
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startsg++;
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}
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}
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@ -945,8 +945,7 @@ sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
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/* Fast path single entry scatterlists. */
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if (nents == 1) {
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sg_dma_address(sglist) = sba_map_single(dev,
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(void *)sg_virt_addr(sglist),
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sg_dma_address(sglist) = sba_map_single(dev, sg_virt(sglist),
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sglist->length, direction);
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sg_dma_len(sglist) = sglist->length;
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return 1;
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@ -1025,7 +1024,7 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
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#endif
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DBG_RUN_SG("%s() START %d entries, %p,%x\n",
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__func__, nents, sg_virt_addr(sglist), sglist->length);
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__func__, nents, sg_virt(sglist), sglist->length);
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ioc = GET_IOC(dev);
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