[PATCH] Use correct dma flushing in dma_cache_sync()
From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Date: 2007-11-27 18:31:46
Subsystem:
mips, the rest · Maintainers:
Thomas Bogendoerfer, Linus Torvalds
Not cache coherent R10k systems (like IP28) need to do real cache invalidates in dma_cache_sync(). Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> ---
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index 33519ce..5cd94a8 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c@@ -364,7 +364,7 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size, BUG_ON(direction == DMA_NONE); if (!plat_device_is_coherent(dev)) - dma_cache_wback_inv((unsigned long)vaddr, size); + __dma_sync((unsigned long)vaddr, size, direction); } EXPORT_SYMBOL(dma_cache_sync);