[PATCH] s390: add __raw_writeq required by __iowrite64_copy

It also adds all the related quad routines.
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/asm-s390/io.h

@@ -86,20 +86,25 @@ extern void iounmap(void *addr);
 #define readb(addr) (*(volatile unsigned char *) __io_virt(addr))
 #define readw(addr) (*(volatile unsigned short *) __io_virt(addr))
 #define readl(addr) (*(volatile unsigned int *) __io_virt(addr))
+#define readq(addr) (*(volatile unsigned long long *) __io_virt(addr))
 
 #define readb_relaxed(addr) readb(addr)
 #define readw_relaxed(addr) readw(addr)
 #define readl_relaxed(addr) readl(addr)
+#define readq_relaxed(addr) readq(addr)
 #define __raw_readb readb
 #define __raw_readw readw
 #define __raw_readl readl
+#define __raw_readq readq
 
 #define writeb(b,addr) (*(volatile unsigned char *) __io_virt(addr) = (b))
 #define writew(b,addr) (*(volatile unsigned short *) __io_virt(addr) = (b))
 #define writel(b,addr) (*(volatile unsigned int *) __io_virt(addr) = (b))
+#define writeq(b,addr) (*(volatile unsigned long long *) __io_virt(addr) = (b))
 #define __raw_writeb writeb
 #define __raw_writew writew
 #define __raw_writel writel
+#define __raw_writeq writeq
 
 #define memset_io(a,b,c)        memset(__io_virt(a),(b),(c))
 #define memcpy_fromio(a,b,c)    memcpy((a),__io_virt(b),(c))