diff options
| -rw-r--r-- | arch/microblaze/kernel/dma.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c index fbe1e81..b108497 100644 --- a/arch/microblaze/kernel/dma.c +++ b/arch/microblaze/kernel/dma.c @@ -43,9 +43,14 @@ static unsigned long get_dma_direct_offset(struct device *dev) return PCI_DRAM_OFFSET; /* FIXME Not sure if is correct */ } -void *dma_direct_alloc_coherent(struct device *dev, size_t size, +#define NOT_COHERENT_CACHE + +static void *dma_direct_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag) { +#ifdef NOT_COHERENT_CACHE + return consistent_alloc(flag, size, dma_handle); +#else void *ret; struct page *page; int node = dev_to_node(dev); @@ -61,12 +66,17 @@ void *dma_direct_alloc_coherent(struct device *dev, size_t size, *dma_handle = virt_to_phys(ret) + get_dma_direct_offset(dev); return ret; +#endif } -void dma_direct_free_coherent(struct device *dev, size_t size, +static void dma_direct_free_coherent(struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle) { +#ifdef NOT_COHERENT_CACHE + consistent_free(vaddr); +#else free_pages((unsigned long)vaddr, get_order(size)); +#endif } static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl, @@ -105,7 +115,6 @@ static inline dma_addr_t dma_direct_map_page(struct device *dev, enum dma_data_direction direction, struct dma_attrs *attrs) { - BUG_ON(direction == DMA_NONE); __dma_sync_page(page_to_phys(page), offset, size, direction); return page_to_phys(page) + offset + get_dma_direct_offset(dev); } @@ -121,7 +130,7 @@ static inline void dma_direct_unmap_page(struct device *dev, * phys_to_virt is here because in __dma_sync_page is __virt_to_phys and * dma_address is physical address */ - __dma_sync_page((void *)dma_address, 0 , size, direction); + __dma_sync_page(dma_address, 0 , size, direction); } struct dma_map_ops dma_direct_ops = { |