diff options
Diffstat (limited to 'lib/swiotlb.c')
| -rw-r--r-- | lib/swiotlb.c | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/lib/swiotlb.c b/lib/swiotlb.c index ec61e1507d0..1fc15bf6394 100644 --- a/lib/swiotlb.c +++ b/lib/swiotlb.c @@ -61,8 +61,8 @@ enum dma_sync_target { int swiotlb_force; /* - * Used to do a quick range check in unmap_single and - * sync_single_*, to see if the memory was in fact allocated by this + * Used to do a quick range check in swiotlb_tbl_unmap_single and + * swiotlb_tbl_sync_single_*, to see if the memory was in fact allocated by this * API. */ static char *io_tlb_start, *io_tlb_end; @@ -492,7 +492,8 @@ map_single(struct device *hwdev, phys_addr_t phys, size_t size, int dir) * dma_addr is the kernel virtual address of the bounce buffer to unmap. */ static void -do_unmap_single(struct device *hwdev, char *dma_addr, size_t size, int dir) +swiotlb_tbl_unmap_single(struct device *hwdev, char *dma_addr, size_t size, + int dir) { unsigned long flags; int i, count, nslots = ALIGN(size, 1 << IO_TLB_SHIFT) >> IO_TLB_SHIFT; @@ -532,7 +533,7 @@ do_unmap_single(struct device *hwdev, char *dma_addr, size_t size, int dir) } static void -sync_single(struct device *hwdev, char *dma_addr, size_t size, +swiotlb_tbl_sync_single(struct device *hwdev, char *dma_addr, size_t size, int dir, int target) { int index = (dma_addr - io_tlb_start) >> IO_TLB_SHIFT; @@ -580,8 +581,8 @@ swiotlb_alloc_coherent(struct device *hwdev, size_t size, } if (!ret) { /* - * We are either out of memory or the device can't DMA - * to GFP_DMA memory; fall back on map_single(), which + * We are either out of memory or the device can't DMA to + * GFP_DMA memory; fall back on map_single(), which * will grab memory from the lowest available address range. */ ret = map_single(hwdev, 0, size, DMA_FROM_DEVICE); @@ -599,7 +600,7 @@ swiotlb_alloc_coherent(struct device *hwdev, size_t size, (unsigned long long)dev_addr); /* DMA_TO_DEVICE to avoid memcpy in unmap_single */ - do_unmap_single(hwdev, ret, size, DMA_TO_DEVICE); + swiotlb_tbl_unmap_single(hwdev, ret, size, DMA_TO_DEVICE); return NULL; } *dma_handle = dev_addr; @@ -617,8 +618,8 @@ swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr, if (!is_swiotlb_buffer(paddr)) free_pages((unsigned long)vaddr, get_order(size)); else - /* DMA_TO_DEVICE to avoid memcpy in unmap_single */ - do_unmap_single(hwdev, vaddr, size, DMA_TO_DEVICE); + /* DMA_TO_DEVICE to avoid memcpy in swiotlb_tbl_unmap_single */ + swiotlb_tbl_unmap_single(hwdev, vaddr, size, DMA_TO_DEVICE); } EXPORT_SYMBOL(swiotlb_free_coherent); @@ -708,7 +709,7 @@ static void unmap_single(struct device *hwdev, dma_addr_t dev_addr, BUG_ON(dir == DMA_NONE); if (is_swiotlb_buffer(paddr)) { - do_unmap_single(hwdev, phys_to_virt(paddr), size, dir); + swiotlb_tbl_unmap_single(hwdev, phys_to_virt(paddr), size, dir); return; } @@ -751,7 +752,8 @@ swiotlb_sync_single(struct device *hwdev, dma_addr_t dev_addr, BUG_ON(dir == DMA_NONE); if (is_swiotlb_buffer(paddr)) { - sync_single(hwdev, phys_to_virt(paddr), size, dir, target); + swiotlb_tbl_sync_single(hwdev, phys_to_virt(paddr), size, dir, + target); return; } |