/arch/ia64/lib/io.c
https://bitbucket.org/evzijst/gittest · C · 165 lines · 128 code · 25 blank · 12 comment · 3 complexity · 06a189aed447ad496f776f9acefd9363 MD5 · raw file
- #include <linux/config.h>
- #include <linux/module.h>
- #include <linux/types.h>
- #include <asm/io.h>
- /*
- * Copy data from IO memory space to "real" memory space.
- * This needs to be optimized.
- */
- void memcpy_fromio(void *to, const volatile void __iomem *from, long count)
- {
- char *dst = to;
- while (count) {
- count--;
- *dst++ = readb(from++);
- }
- }
- EXPORT_SYMBOL(memcpy_fromio);
- /*
- * Copy data from "real" memory space to IO memory space.
- * This needs to be optimized.
- */
- void memcpy_toio(volatile void __iomem *to, const void *from, long count)
- {
- const char *src = from;
- while (count) {
- count--;
- writeb(*src++, to++);
- }
- }
- EXPORT_SYMBOL(memcpy_toio);
- /*
- * "memset" on IO memory space.
- * This needs to be optimized.
- */
- void memset_io(volatile void __iomem *dst, int c, long count)
- {
- unsigned char ch = (char)(c & 0xff);
- while (count) {
- count--;
- writeb(ch, dst);
- dst++;
- }
- }
- EXPORT_SYMBOL(memset_io);
- #ifdef CONFIG_IA64_GENERIC
- #undef __ia64_inb
- #undef __ia64_inw
- #undef __ia64_inl
- #undef __ia64_outb
- #undef __ia64_outw
- #undef __ia64_outl
- #undef __ia64_readb
- #undef __ia64_readw
- #undef __ia64_readl
- #undef __ia64_readq
- #undef __ia64_readb_relaxed
- #undef __ia64_readw_relaxed
- #undef __ia64_readl_relaxed
- #undef __ia64_readq_relaxed
- #undef __ia64_writeb
- #undef __ia64_writew
- #undef __ia64_writel
- #undef __ia64_writeq
- #undef __ia64_mmiowb
- unsigned int
- __ia64_inb (unsigned long port)
- {
- return ___ia64_inb(port);
- }
- unsigned int
- __ia64_inw (unsigned long port)
- {
- return ___ia64_inw(port);
- }
- unsigned int
- __ia64_inl (unsigned long port)
- {
- return ___ia64_inl(port);
- }
- void
- __ia64_outb (unsigned char val, unsigned long port)
- {
- ___ia64_outb(val, port);
- }
- void
- __ia64_outw (unsigned short val, unsigned long port)
- {
- ___ia64_outw(val, port);
- }
- void
- __ia64_outl (unsigned int val, unsigned long port)
- {
- ___ia64_outl(val, port);
- }
- unsigned char
- __ia64_readb (void __iomem *addr)
- {
- return ___ia64_readb (addr);
- }
- unsigned short
- __ia64_readw (void __iomem *addr)
- {
- return ___ia64_readw (addr);
- }
- unsigned int
- __ia64_readl (void __iomem *addr)
- {
- return ___ia64_readl (addr);
- }
- unsigned long
- __ia64_readq (void __iomem *addr)
- {
- return ___ia64_readq (addr);
- }
- unsigned char
- __ia64_readb_relaxed (void __iomem *addr)
- {
- return ___ia64_readb (addr);
- }
- unsigned short
- __ia64_readw_relaxed (void __iomem *addr)
- {
- return ___ia64_readw (addr);
- }
- unsigned int
- __ia64_readl_relaxed (void __iomem *addr)
- {
- return ___ia64_readl (addr);
- }
- unsigned long
- __ia64_readq_relaxed (void __iomem *addr)
- {
- return ___ia64_readq (addr);
- }
- void
- __ia64_mmiowb(void)
- {
- ___ia64_mmiowb();
- }
- #endif /* CONFIG_IA64_GENERIC */