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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-09-25 21:38:41 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-09-29 10:40:16 +0100 |
| commit | 2638b4dbe768aba023a06acd8e7eba708bb76ee6 (patch) | |
| tree | 41e464b337ec85444d8c551947de13bb8731af70 /arch/arm/common | |
| parent | 01135d92c1a540cd3370f7cf3d1c762320b85034 (diff) | |
| download | linux-2638b4dbe768aba023a06acd8e7eba708bb76ee6.tar.gz linux-2638b4dbe768aba023a06acd8e7eba708bb76ee6.tar.bz2 linux-2638b4dbe768aba023a06acd8e7eba708bb76ee6.zip | |
[ARM] dma: Reduce to one dma_sync_sg_* implementation
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/common')
| -rw-r--r-- | arch/arm/common/dmabounce.c | 48 |
1 files changed, 12 insertions, 36 deletions
diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c index 20d967376fa9..0a98148279b1 100644 --- a/arch/arm/common/dmabounce.c +++ b/arch/arm/common/dmabounce.c @@ -468,45 +468,23 @@ void dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_addr, } EXPORT_SYMBOL(dma_sync_single_range_for_device); -void -dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents, - enum dma_data_direction dir) +int dmabounce_sync_for_cpu(struct device *dev, dma_addr_t addr, + unsigned long off, size_t sz, enum dma_data_direction dir) { - struct scatterlist *s; - int i; - - dev_dbg(dev, "%s(sg=%p,nents=%d,dir=%x)\n", - __func__, sg, nents, dir); - - BUG_ON(dir == DMA_NONE); - - for_each_sg(sg, s, nents, i) { - dma_addr_t dma_addr = s->dma_address; - unsigned int length = s->length; - - sync_single(dev, dma_addr, length, dir); - } + dev_dbg(dev, "%s(dma=%#lx,off=%#lx,sz=%zx,dir=%x)\n", + __func__, addr, off, sz, dir); + return sync_single(dev, addr, off + sz, dir); } +EXPORT_SYMBOL(dmabounce_sync_for_cpu); -void -dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents, - enum dma_data_direction dir) +int dmabounce_sync_for_device(struct device *dev, dma_addr_t addr, + unsigned long off, size_t sz, enum dma_data_direction dir) { - struct scatterlist *s; - int i; - - dev_dbg(dev, "%s(sg=%p,nents=%d,dir=%x)\n", - __func__, sg, nents, dir); - - BUG_ON(dir == DMA_NONE); - - for_each_sg(sg, s, nents, i) { - dma_addr_t dma_addr = s->dma_address; - unsigned int length = s->length; - - sync_single(dev, dma_addr, length, dir); - } + dev_dbg(dev, "%s(dma=%#lx,off=%#lx,sz=%zx,dir=%x)\n", + __func__, addr, off, sz, dir); + return sync_single(dev, addr, off + sz, dir); } +EXPORT_SYMBOL(dmabounce_sync_for_device); static int dmabounce_init_pool(struct dmabounce_pool *pool, struct device *dev, const char *name, @@ -618,8 +596,6 @@ dmabounce_unregister_dev(struct device *dev) EXPORT_SYMBOL(dma_map_single); EXPORT_SYMBOL(dma_unmap_single); -EXPORT_SYMBOL(dma_sync_sg_for_cpu); -EXPORT_SYMBOL(dma_sync_sg_for_device); EXPORT_SYMBOL(dmabounce_register_dev); EXPORT_SYMBOL(dmabounce_unregister_dev); |