diff options
Diffstat (limited to 'include/asm-sh/io.h')
| -rw-r--r-- | include/asm-sh/io.h | 51 |
1 files changed, 26 insertions, 25 deletions
diff --git a/include/asm-sh/io.h b/include/asm-sh/io.h index e6a1877dcb2..6ed34d8eac5 100644 --- a/include/asm-sh/io.h +++ b/include/asm-sh/io.h @@ -135,6 +135,32 @@ void __raw_readsl(unsigned long addr, void *data, int longlen); # define writel(v,a) ({ __raw_writel((v),(a)); mb(); }) #endif +#define __BUILD_MEMORY_STRING(bwlq, type) \ + \ +static inline void writes##bwlq(volatile void __iomem *mem, \ + const void *addr, unsigned int count) \ +{ \ + const volatile type *__addr = addr; \ + \ + while (count--) { \ + __raw_write##bwlq(*__addr, mem); \ + __addr++; \ + } \ +} \ + \ +static inline void reads##bwlq(volatile void __iomem *mem, void *addr, \ + unsigned int count) \ +{ \ + volatile type *__addr = addr; \ + \ + while (count--) { \ + *__addr = __raw_read##bwlq(mem); \ + __addr++; \ + } \ +} + +__BUILD_MEMORY_STRING(b, u8) +__BUILD_MEMORY_STRING(w, u16) #define writesl __raw_writesl #define readsl __raw_readsl @@ -301,31 +327,6 @@ __ioremap_mode(unsigned long offset, unsigned long size, unsigned long flags) __iounmap((addr)) /* - * The caches on some architectures aren't dma-coherent and have need to - * handle this in software. There are three types of operations that - * can be applied to dma buffers. - * - * - dma_cache_wback_inv(start, size) makes caches and RAM coherent by - * writing the content of the caches back to memory, if necessary. - * The function also invalidates the affected part of the caches as - * necessary before DMA transfers from outside to memory. - * - dma_cache_inv(start, size) invalidates the affected parts of the - * caches. Dirty lines of the caches may be written back or simply - * be discarded. This operation is necessary before dma operations - * to the memory. - * - dma_cache_wback(start, size) writes back any dirty lines but does - * not invalidate the cache. This can be used before DMA reads from - * memory, - */ - -#define dma_cache_wback_inv(_start,_size) \ - __flush_purge_region(_start,_size) -#define dma_cache_inv(_start,_size) \ - __flush_invalidate_region(_start,_size) -#define dma_cache_wback(_start,_size) \ - __flush_wback_region(_start,_size) - -/* * Convert a physical pointer to a virtual kernel pointer for /dev/mem * access */ |