From: Ralf Baechle Date: Fri, 2 Mar 2007 11:42:11 +0000 (+0000) Subject: [MIPS] dma_sync_sg_for_cpu is a no-op except for non-coherent R10000s. X-Git-Tag: Ubuntu-snapdragon-4.4.0-1050.54~42944^2~3 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=5b648a98db05fd0152349a11a7f7e30b80643977;p=mirror_ubuntu-artful-kernel.git [MIPS] dma_sync_sg_for_cpu is a no-op except for non-coherent R10000s. Signed-off-by: Ralf Baechle --- diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c index a72093ad105f..f503d02e403b 100644 --- a/arch/mips/mm/dma-default.c +++ b/arch/mips/mm/dma-default.c @@ -295,7 +295,7 @@ void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems, /* Make sure that gcc doesn't leave the empty loop body. */ for (i = 0; i < nelems; i++, sg++) { - if (!plat_device_is_coherent(dev)) + if (cpu_is_noncoherent_r10000(dev)) __dma_sync((unsigned long)page_address(sg->page), sg->length, direction); plat_unmap_dma_mem(sg->dma_address);