MIPS: Add DMA declare coherent memory support

[net-next-2.6.git] / arch / mips / mm / dma-default.c

diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index 7e48e76148aa73aea2de549fb3e9439d16fb6f82..9367e33fbd1822d92f55302a38fb872982e2fb7d 100644 (file)
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -90,6 +90,9 @@ void *dma_alloc_coherent(struct device *dev, size_t size,
 {
        void *ret;
 
+       if (dma_alloc_from_coherent(dev, size, dma_handle, &ret))
+               return ret;
+
        gfp = massage_gfp_flags(dev, gfp);
 
        ret = (void *) __get_free_pages(gfp, get_order(size));
@@ -122,6 +125,10 @@ void dma_free_coherent(struct device *dev, size_t size, void *vaddr,
        dma_addr_t dma_handle)
 {
        unsigned long addr = (unsigned long) vaddr;
+       int order = get_order(size);
+
+       if (dma_release_from_coherent(dev, order, vaddr))
+               return;
 
        plat_unmap_dma_mem(dev, dma_handle, size, DMA_BIDIRECTIONAL);