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| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2008-03-04 14:29:28 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-03-04 16:35:17 -0800 |
| commit | 7c8cda625acd9b704100994626fb6d2fb4ffb9c2 (patch) | |
| tree | f938f445d90db32a634102aabd47521bc00d3d6a /drivers/parisc | |
| parent | 3715863aa142c4f4c5208f5f3e5e9bac06006d2f (diff) | |
| download | lwn-7c8cda625acd9b704100994626fb6d2fb4ffb9c2.tar.gz lwn-7c8cda625acd9b704100994626fb6d2fb4ffb9c2.zip | |
iommu: parisc: pass struct device to iommu_alloc_range
This adds struct device argument to sba_alloc_range and ccio_alloc_range, a
preparation for modifications to fix the IOMMU segment boundary problem. This
change enables ccio_alloc_range to access to LLD's segment boundary limits.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Kyle McMartin <kyle@parisc-linux.org>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/parisc')
| -rw-r--r-- | drivers/parisc/ccio-dma.c | 4 | ||||
| -rw-r--r-- | drivers/parisc/iommu-helpers.h | 6 | ||||
| -rw-r--r-- | drivers/parisc/sba_iommu.c | 4 |
3 files changed, 7 insertions, 7 deletions
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c index d08b284de196..1695facfca3a 100644 --- a/drivers/parisc/ccio-dma.c +++ b/drivers/parisc/ccio-dma.c @@ -341,7 +341,7 @@ static int ioc_count; * of available pages for the requested size. */ static int -ccio_alloc_range(struct ioc *ioc, size_t size) +ccio_alloc_range(struct ioc *ioc, struct device *dev, size_t size) { unsigned int pages_needed = size >> IOVP_SHIFT; unsigned int res_idx; @@ -760,7 +760,7 @@ ccio_map_single(struct device *dev, void *addr, size_t size, ioc->msingle_pages += size >> IOVP_SHIFT; #endif - idx = ccio_alloc_range(ioc, size); + idx = ccio_alloc_range(ioc, dev, size); iovp = (dma_addr_t)MKIOVP(idx); pdir_start = &(ioc->pdir_base[idx]); diff --git a/drivers/parisc/iommu-helpers.h b/drivers/parisc/iommu-helpers.h index 97ba8286c596..a9c46cc2db37 100644 --- a/drivers/parisc/iommu-helpers.h +++ b/drivers/parisc/iommu-helpers.h @@ -96,8 +96,8 @@ iommu_fill_pdir(struct ioc *ioc, struct scatterlist *startsg, int nents, static inline unsigned int iommu_coalesce_chunks(struct ioc *ioc, struct device *dev, - struct scatterlist *startsg, int nents, - int (*iommu_alloc_range)(struct ioc *, size_t)) + struct scatterlist *startsg, int nents, + int (*iommu_alloc_range)(struct ioc *, struct device *, size_t)) { struct scatterlist *contig_sg; /* contig chunk head */ unsigned long dma_offset, dma_len; /* start/len of DMA stream */ @@ -166,7 +166,7 @@ iommu_coalesce_chunks(struct ioc *ioc, struct device *dev, dma_len = ALIGN(dma_len + dma_offset, IOVP_SIZE); sg_dma_address(contig_sg) = PIDE_FLAG - | (iommu_alloc_range(ioc, dma_len) << IOVP_SHIFT) + | (iommu_alloc_range(ioc, dev, dma_len) << IOVP_SHIFT) | dma_offset; n_mappings++; } diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c index d06627c3f353..7d58bd2019b9 100644 --- a/drivers/parisc/sba_iommu.c +++ b/drivers/parisc/sba_iommu.c @@ -404,7 +404,7 @@ sba_search_bitmap(struct ioc *ioc, unsigned long bits_wanted) * resource bit map. */ static int -sba_alloc_range(struct ioc *ioc, size_t size) +sba_alloc_range(struct ioc *ioc, struct device *dev, size_t size) { unsigned int pages_needed = size >> IOVP_SHIFT; #ifdef SBA_COLLECT_STATS @@ -710,7 +710,7 @@ sba_map_single(struct device *dev, void *addr, size_t size, ioc->msingle_calls++; ioc->msingle_pages += size >> IOVP_SHIFT; #endif - pide = sba_alloc_range(ioc, size); + pide = sba_alloc_range(ioc, dev, size); iovp = (dma_addr_t) pide << IOVP_SHIFT; DBG_RUN("%s() 0x%p -> 0x%lx\n", |