提交 ea1eae75 编写于 作者: J Jeff Dike 提交者: Linus Torvalds

[PATCH] uml: add __raw_writel definition

Add implementations of the write* and __raw_write* functions.  __raw_writel is
needed by lib/iocopy.c, which shouldn't be used in UML, but which is
unconditionally linked in anyway.
Signed-off-by: NJeff Dike <jdike@addtoit.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
上级 86c562a9
......@@ -33,4 +33,20 @@ static inline void * phys_to_virt(unsigned long address)
*/
#define xlate_dev_kmem_ptr(p) p
static inline void writeb(unsigned char b, volatile void __iomem *addr)
{
*(volatile unsigned char __force *) addr = b;
}
static inline void writew(unsigned short b, volatile void __iomem *addr)
{
*(volatile unsigned short __force *) addr = b;
}
static inline void writel(unsigned int b, volatile void __iomem *addr)
{
*(volatile unsigned int __force *) addr = b;
}
#define __raw_writeb writeb
#define __raw_writew writew
#define __raw_writel writel
#endif
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