diff options
Diffstat (limited to 'arch/arc/mm/dma.c')
| -rw-r--r-- | arch/arc/mm/dma.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c index c75d5c3470e3..535ed4a068ef 100644 --- a/arch/arc/mm/dma.c +++ b/arch/arc/mm/dma.c @@ -167,7 +167,7 @@ void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr, } /* - * Plug in coherent or noncoherent dma ops + * Plug in direct dma map ops. */ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, const struct iommu_ops *iommu, bool coherent) @@ -175,13 +175,11 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, /* * IOC hardware snoops all DMA traffic keeping the caches consistent * with memory - eliding need for any explicit cache maintenance of - * DMA buffers - so we can use dma_direct cache ops. + * DMA buffers. */ - if (is_isa_arcv2() && ioc_enable && coherent) { - set_dma_ops(dev, &dma_direct_ops); - dev_info(dev, "use dma_direct_ops cache ops\n"); - } else { - set_dma_ops(dev, &dma_noncoherent_ops); - dev_info(dev, "use dma_noncoherent_ops cache ops\n"); - } + if (is_isa_arcv2() && ioc_enable && coherent) + dev->dma_coherent = true; + + dev_info(dev, "use %sncoherent DMA ops\n", + dev->dma_coherent ? "" : "non"); } |