mirror of https://gitee.com/openkylin/linux.git
166 lines
2.6 KiB
C
166 lines
2.6 KiB
C
#include <linux/config.h>
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#include <linux/module.h>
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#include <linux/types.h>
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#include <asm/io.h>
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/*
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* Copy data from IO memory space to "real" memory space.
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* This needs to be optimized.
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*/
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void memcpy_fromio(void *to, const volatile void __iomem *from, long count)
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{
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char *dst = to;
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while (count) {
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count--;
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*dst++ = readb(from++);
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}
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}
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EXPORT_SYMBOL(memcpy_fromio);
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/*
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* Copy data from "real" memory space to IO memory space.
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* This needs to be optimized.
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*/
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void memcpy_toio(volatile void __iomem *to, const void *from, long count)
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{
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const char *src = from;
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while (count) {
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count--;
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writeb(*src++, to++);
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}
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}
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EXPORT_SYMBOL(memcpy_toio);
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/*
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* "memset" on IO memory space.
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* This needs to be optimized.
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*/
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void memset_io(volatile void __iomem *dst, int c, long count)
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{
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unsigned char ch = (char)(c & 0xff);
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while (count) {
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count--;
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writeb(ch, dst);
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dst++;
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}
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}
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EXPORT_SYMBOL(memset_io);
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#ifdef CONFIG_IA64_GENERIC
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#undef __ia64_inb
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#undef __ia64_inw
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#undef __ia64_inl
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#undef __ia64_outb
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#undef __ia64_outw
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#undef __ia64_outl
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#undef __ia64_readb
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#undef __ia64_readw
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#undef __ia64_readl
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#undef __ia64_readq
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#undef __ia64_readb_relaxed
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#undef __ia64_readw_relaxed
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#undef __ia64_readl_relaxed
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#undef __ia64_readq_relaxed
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#undef __ia64_writeb
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#undef __ia64_writew
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#undef __ia64_writel
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#undef __ia64_writeq
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#undef __ia64_mmiowb
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unsigned int
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__ia64_inb (unsigned long port)
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{
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return ___ia64_inb(port);
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}
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unsigned int
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__ia64_inw (unsigned long port)
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{
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return ___ia64_inw(port);
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}
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unsigned int
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__ia64_inl (unsigned long port)
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{
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return ___ia64_inl(port);
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}
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void
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__ia64_outb (unsigned char val, unsigned long port)
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{
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___ia64_outb(val, port);
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}
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void
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__ia64_outw (unsigned short val, unsigned long port)
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{
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___ia64_outw(val, port);
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}
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void
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__ia64_outl (unsigned int val, unsigned long port)
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{
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___ia64_outl(val, port);
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}
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unsigned char
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__ia64_readb (void __iomem *addr)
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{
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return ___ia64_readb (addr);
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}
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unsigned short
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__ia64_readw (void __iomem *addr)
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{
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return ___ia64_readw (addr);
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}
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unsigned int
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__ia64_readl (void __iomem *addr)
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{
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return ___ia64_readl (addr);
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}
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unsigned long
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__ia64_readq (void __iomem *addr)
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{
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return ___ia64_readq (addr);
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}
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unsigned char
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__ia64_readb_relaxed (void __iomem *addr)
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{
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return ___ia64_readb (addr);
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}
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unsigned short
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__ia64_readw_relaxed (void __iomem *addr)
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{
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return ___ia64_readw (addr);
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}
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unsigned int
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__ia64_readl_relaxed (void __iomem *addr)
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{
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return ___ia64_readl (addr);
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}
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unsigned long
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__ia64_readq_relaxed (void __iomem *addr)
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{
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return ___ia64_readq (addr);
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}
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void
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__ia64_mmiowb(void)
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{
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___ia64_mmiowb();
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}
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#endif /* CONFIG_IA64_GENERIC */
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