diff options
Diffstat (limited to 'arch/arm/common/dmabounce.c')
-rw-r--r-- | arch/arm/common/dmabounce.c | 33 |
1 files changed, 18 insertions, 15 deletions
diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c index aecc6c3f908f..35c72bcf3d0b 100644 --- a/arch/arm/common/dmabounce.c +++ b/arch/arm/common/dmabounce.c | |||
@@ -435,6 +435,7 @@ int | |||
435 | dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, | 435 | dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, |
436 | enum dma_data_direction dir) | 436 | enum dma_data_direction dir) |
437 | { | 437 | { |
438 | struct scatterlist *s; | ||
438 | int i; | 439 | int i; |
439 | 440 | ||
440 | dev_dbg(dev, "%s(sg=%p,nents=%d,dir=%x)\n", | 441 | dev_dbg(dev, "%s(sg=%p,nents=%d,dir=%x)\n", |
@@ -442,14 +443,13 @@ dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, | |||
442 | 443 | ||
443 | BUG_ON(dir == DMA_NONE); | 444 | BUG_ON(dir == DMA_NONE); |
444 | 445 | ||
445 | for (i = 0; i < nents; i++, sg++) { | 446 | for_each_sg(sg, s, nents, i) { |
446 | struct page *page = sg_page(sg); | 447 | struct page *page = sg_page(s); |
447 | unsigned int offset = sg->offset; | 448 | unsigned int offset = s->offset; |
448 | unsigned int length = sg->length; | 449 | unsigned int length = s->length; |
449 | void *ptr = page_address(page) + offset; | 450 | void *ptr = page_address(page) + offset; |
450 | 451 | ||
451 | sg->dma_address = | 452 | s->dma_address = map_single(dev, ptr, length, dir); |
452 | map_single(dev, ptr, length, dir); | ||
453 | } | 453 | } |
454 | 454 | ||
455 | return nents; | 455 | return nents; |
@@ -459,6 +459,7 @@ void | |||
459 | dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, | 459 | dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, |
460 | enum dma_data_direction dir) | 460 | enum dma_data_direction dir) |
461 | { | 461 | { |
462 | struct scatterlist *s; | ||
462 | int i; | 463 | int i; |
463 | 464 | ||
464 | dev_dbg(dev, "%s(sg=%p,nents=%d,dir=%x)\n", | 465 | dev_dbg(dev, "%s(sg=%p,nents=%d,dir=%x)\n", |
@@ -466,9 +467,9 @@ dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, | |||
466 | 467 | ||
467 | BUG_ON(dir == DMA_NONE); | 468 | BUG_ON(dir == DMA_NONE); |
468 | 469 | ||
469 | for (i = 0; i < nents; i++, sg++) { | 470 | for_each_sg(sg, s, nents, i) { |
470 | dma_addr_t dma_addr = sg->dma_address; | 471 | dma_addr_t dma_addr = s->dma_address; |
471 | unsigned int length = sg->length; | 472 | unsigned int length = s->length; |
472 | 473 | ||
473 | unmap_single(dev, dma_addr, length, dir); | 474 | unmap_single(dev, dma_addr, length, dir); |
474 | } | 475 | } |
@@ -502,6 +503,7 @@ void | |||
502 | dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents, | 503 | dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents, |
503 | enum dma_data_direction dir) | 504 | enum dma_data_direction dir) |
504 | { | 505 | { |
506 | struct scatterlist *s; | ||
505 | int i; | 507 | int i; |
506 | 508 | ||
507 | dev_dbg(dev, "%s(sg=%p,nents=%d,dir=%x)\n", | 509 | dev_dbg(dev, "%s(sg=%p,nents=%d,dir=%x)\n", |
@@ -509,9 +511,9 @@ dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents, | |||
509 | 511 | ||
510 | BUG_ON(dir == DMA_NONE); | 512 | BUG_ON(dir == DMA_NONE); |
511 | 513 | ||
512 | for (i = 0; i < nents; i++, sg++) { | 514 | for_each_sg(sg, s, nents, i) { |
513 | dma_addr_t dma_addr = sg->dma_address; | 515 | dma_addr_t dma_addr = s->dma_address; |
514 | unsigned int length = sg->length; | 516 | unsigned int length = s->length; |
515 | 517 | ||
516 | sync_single(dev, dma_addr, length, dir); | 518 | sync_single(dev, dma_addr, length, dir); |
517 | } | 519 | } |
@@ -521,6 +523,7 @@ void | |||
521 | dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents, | 523 | dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents, |
522 | enum dma_data_direction dir) | 524 | enum dma_data_direction dir) |
523 | { | 525 | { |
526 | struct scatterlist *s; | ||
524 | int i; | 527 | int i; |
525 | 528 | ||
526 | dev_dbg(dev, "%s(sg=%p,nents=%d,dir=%x)\n", | 529 | dev_dbg(dev, "%s(sg=%p,nents=%d,dir=%x)\n", |
@@ -528,9 +531,9 @@ dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents, | |||
528 | 531 | ||
529 | BUG_ON(dir == DMA_NONE); | 532 | BUG_ON(dir == DMA_NONE); |
530 | 533 | ||
531 | for (i = 0; i < nents; i++, sg++) { | 534 | for_each_sg(sg, s, nents, i) { |
532 | dma_addr_t dma_addr = sg->dma_address; | 535 | dma_addr_t dma_addr = s->dma_address; |
533 | unsigned int length = sg->length; | 536 | unsigned int length = s->length; |
534 | 537 | ||
535 | sync_single(dev, dma_addr, length, dir); | 538 | sync_single(dev, dma_addr, length, dir); |
536 | } | 539 | } |