diff options
Diffstat (limited to 'arch/mips/mm/dma-noncoherent.c')
| -rw-r--r-- | arch/mips/mm/dma-noncoherent.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/arch/mips/mm/dma-noncoherent.c b/arch/mips/mm/dma-noncoherent.c index cb38461391cb..b57465733e87 100644 --- a/arch/mips/mm/dma-noncoherent.c +++ b/arch/mips/mm/dma-noncoherent.c @@ -120,13 +120,8 @@ static inline void dma_sync_phys(phys_addr_t paddr, size_t size, if (PageHighMem(page)) { void *addr; - if (offset + len > PAGE_SIZE) { - if (offset >= PAGE_SIZE) { - page += offset >> PAGE_SHIFT; - offset &= ~PAGE_MASK; - } + if (offset + len > PAGE_SIZE) len = PAGE_SIZE - offset; - } addr = kmap_atomic(page); dma_sync_virt(addr + offset, len, dir); @@ -145,12 +140,14 @@ void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr, dma_sync_phys(paddr, size, dir); } +#ifdef CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr, size_t size, enum dma_data_direction dir) { if (cpu_needs_post_dma_flush(dev)) dma_sync_phys(paddr, size, dir); } +#endif void arch_dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction direction) |