1 #include <linux/module.h> 2 #include <linux/types.h> 3 4 #include <asm/io.h> 5 6 /* 7 * Copy data from IO memory space to "real" memory space. 8 * This needs to be optimized. 9 */ 10 void memcpy_fromio(void *to, const volatile void __iomem *from, long count) 11 { 12 char *dst = to; 13 14 while (count) { 15 count--; 16 *dst++ = readb(from++); 17 } 18 } 19 EXPORT_SYMBOL(memcpy_fromio); 20 21 /* 22 * Copy data from "real" memory space to IO memory space. 23 * This needs to be optimized. 24 */ 25 void memcpy_toio(volatile void __iomem *to, const void *from, long count) 26 { 27 const char *src = from; 28 29 while (count) { 30 count--; 31 writeb(*src++, to++); 32 } 33 } 34 EXPORT_SYMBOL(memcpy_toio); 35 36 /* 37 * "memset" on IO memory space. 38 * This needs to be optimized. 39 */ 40 void memset_io(volatile void __iomem *dst, int c, long count) 41 { 42 unsigned char ch = (char)(c & 0xff); 43 44 while (count) { 45 count--; 46 writeb(ch, dst); 47 dst++; 48 } 49 } 50 EXPORT_SYMBOL(memset_io); 51 52 #ifdef CONFIG_IA64_GENERIC 53 54 #undef __ia64_inb 55 #undef __ia64_inw 56 #undef __ia64_inl 57 #undef __ia64_outb 58 #undef __ia64_outw 59 #undef __ia64_outl 60 #undef __ia64_readb 61 #undef __ia64_readw 62 #undef __ia64_readl 63 #undef __ia64_readq 64 #undef __ia64_readb_relaxed 65 #undef __ia64_readw_relaxed 66 #undef __ia64_readl_relaxed 67 #undef __ia64_readq_relaxed 68 #undef __ia64_writeb 69 #undef __ia64_writew 70 #undef __ia64_writel 71 #undef __ia64_writeq 72 #undef __ia64_mmiowb 73 74 unsigned int 75 __ia64_inb (unsigned long port) 76 { 77 return ___ia64_inb(port); 78 } 79 80 unsigned int 81 __ia64_inw (unsigned long port) 82 { 83 return ___ia64_inw(port); 84 } 85 86 unsigned int 87 __ia64_inl (unsigned long port) 88 { 89 return ___ia64_inl(port); 90 } 91 92 void 93 __ia64_outb (unsigned char val, unsigned long port) 94 { 95 ___ia64_outb(val, port); 96 } 97 98 void 99 __ia64_outw (unsigned short val, unsigned long port) 100 { 101 ___ia64_outw(val, port); 102 } 103 104 void 105 __ia64_outl (unsigned int val, unsigned long port) 106 { 107 ___ia64_outl(val, port); 108 } 109 110 unsigned char 111 __ia64_readb (void __iomem *addr) 112 { 113 return ___ia64_readb (addr); 114 } 115 116 unsigned short 117 __ia64_readw (void __iomem *addr) 118 { 119 return ___ia64_readw (addr); 120 } 121 122 unsigned int 123 __ia64_readl (void __iomem *addr) 124 { 125 return ___ia64_readl (addr); 126 } 127 128 unsigned long 129 __ia64_readq (void __iomem *addr) 130 { 131 return ___ia64_readq (addr); 132 } 133 134 unsigned char 135 __ia64_readb_relaxed (void __iomem *addr) 136 { 137 return ___ia64_readb (addr); 138 } 139 140 unsigned short 141 __ia64_readw_relaxed (void __iomem *addr) 142 { 143 return ___ia64_readw (addr); 144 } 145 146 unsigned int 147 __ia64_readl_relaxed (void __iomem *addr) 148 { 149 return ___ia64_readl (addr); 150 } 151 152 unsigned long 153 __ia64_readq_relaxed (void __iomem *addr) 154 { 155 return ___ia64_readq (addr); 156 } 157 158 void 159 __ia64_mmiowb(void) 160 { 161 ___ia64_mmiowb(); 162 } 163 164 #endif /* CONFIG_IA64_GENERIC */ 165