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author | Matthew Wilcox <willy@linux.intel.com> | 2015-03-20 13:37:59 -0400 |
---|---|---|
committer | Helge Deller <deller@gmx.de> | 2015-04-21 22:02:43 +0200 |
commit | 8bf8a1d1c13c687eda599c827d713eb70764a79f (patch) | |
tree | b3272a7adfe5dacf3180678a50dc3cba88932065 /drivers | |
parent | 1d11437f4fd02f9b5d3749675a1232216787dcc6 (diff) | |
download | linux-stable-8bf8a1d1c13c687eda599c827d713eb70764a79f.tar.gz linux-stable-8bf8a1d1c13c687eda599c827d713eb70764a79f.tar.bz2 linux-stable-8bf8a1d1c13c687eda599c827d713eb70764a79f.zip |
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>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/parisc/ccio-dma.c | 6 | ||||
-rw-r--r-- | drivers/parisc/iommu-helpers.h | 26 | ||||
-rw-r--r-- | drivers/parisc/sba_iommu.c | 7 |
3 files changed, 20 insertions, 19 deletions
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c index 6bc16809c504..02ff84fcfa61 100644 --- a/drivers/parisc/ccio-dma.c +++ b/drivers/parisc/ccio-dma.c @@ -916,7 +916,7 @@ ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents, /* Fast path single entry scatterlists. */ if (nents == 1) { sg_dma_address(sglist) = ccio_map_single(dev, - (void *)sg_virt_addr(sglist), sglist->length, + sg_virt(sglist), sglist->length, direction); sg_dma_len(sglist) = sglist->length; return 1; @@ -983,8 +983,8 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents, BUG_ON(!dev); ioc = GET_IOC(dev); - DBG_RUN_SG("%s() START %d entries, %08lx,%x\n", - __func__, nents, sg_virt_addr(sglist), sglist->length); + DBG_RUN_SG("%s() START %d entries, %p,%x\n", + __func__, nents, sg_virt(sglist), sglist->length); #ifdef CCIO_COLLECT_STATS ioc->usg_calls++; diff --git a/drivers/parisc/iommu-helpers.h b/drivers/parisc/iommu-helpers.h index 8c33491b21fe..761e77bfce5d 100644 --- a/drivers/parisc/iommu-helpers.h +++ b/drivers/parisc/iommu-helpers.h @@ -30,9 +30,9 @@ iommu_fill_pdir(struct ioc *ioc, struct scatterlist *startsg, int nents, unsigned long vaddr; long size; - DBG_RUN_SG(" %d : %08lx/%05x %08lx/%05x\n", nents, + DBG_RUN_SG(" %d : %08lx/%05x %p/%05x\n", nents, (unsigned long)sg_dma_address(startsg), cnt, - sg_virt_addr(startsg), startsg->length + sg_virt(startsg), startsg->length ); @@ -66,7 +66,7 @@ iommu_fill_pdir(struct ioc *ioc, struct scatterlist *startsg, int nents, BUG_ON(pdirp == NULL); - vaddr = sg_virt_addr(startsg); + vaddr = (unsigned long)sg_virt(startsg); sg_dma_len(dma_sg) += startsg->length; size = startsg->length + dma_offset; dma_offset = 0; @@ -113,7 +113,7 @@ iommu_coalesce_chunks(struct ioc *ioc, struct device *dev, */ contig_sg = startsg; dma_len = startsg->length; - dma_offset = sg_virt_addr(startsg) & ~IOVP_MASK; + dma_offset = startsg->offset; /* PARANOID: clear entries */ sg_dma_address(startsg) = 0; @@ -124,14 +124,13 @@ iommu_coalesce_chunks(struct ioc *ioc, struct device *dev, ** it's always looking one "ahead". */ while(--nents > 0) { - unsigned long prevstartsg_end, startsg_end; + unsigned long prev_end, sg_start; - prevstartsg_end = sg_virt_addr(startsg) + - startsg->length; + prev_end = (unsigned long)sg_virt(startsg) + + startsg->length; startsg++; - startsg_end = sg_virt_addr(startsg) + - startsg->length; + sg_start = (unsigned long)sg_virt(startsg); /* PARANOID: clear entries */ sg_dma_address(startsg) = 0; @@ -150,10 +149,13 @@ iommu_coalesce_chunks(struct ioc *ioc, struct device *dev, break; /* - ** Next see if we can append the next chunk (i.e. - ** it must end on one page and begin on another + * Next see if we can append the next chunk (i.e. + * it must end on one page and begin on another, or + * it must start on the same address as the previous + * entry ended. */ - if (unlikely(((prevstartsg_end | sg_virt_addr(startsg)) & ~PAGE_MASK) != 0)) + if (unlikely((prev_end != sg_start) || + ((prev_end | sg_start) & ~PAGE_MASK))) break; dma_len += startsg->length; diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c index f07471264689..f1441e466c06 100644 --- a/drivers/parisc/sba_iommu.c +++ b/drivers/parisc/sba_iommu.c @@ -278,7 +278,7 @@ sba_dump_sg( struct ioc *ioc, struct scatterlist *startsg, int nents) nents, (unsigned long) sg_dma_address(startsg), sg_dma_len(startsg), - sg_virt_addr(startsg), startsg->length); + sg_virt(startsg), startsg->length); startsg++; } } @@ -945,8 +945,7 @@ sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents, /* Fast path single entry scatterlists. */ if (nents == 1) { - sg_dma_address(sglist) = sba_map_single(dev, - (void *)sg_virt_addr(sglist), + sg_dma_address(sglist) = sba_map_single(dev, sg_virt(sglist), sglist->length, direction); sg_dma_len(sglist) = sglist->length; return 1; @@ -1025,7 +1024,7 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents, #endif DBG_RUN_SG("%s() START %d entries, %p,%x\n", - __func__, nents, sg_virt_addr(sglist), sglist->length); + __func__, nents, sg_virt(sglist), sglist->length); ioc = GET_IOC(dev); |