diff options
Diffstat (limited to 'arch/x86/include/asm/io_64.h')
| -rw-r--r-- | arch/x86/include/asm/io_64.h | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/arch/x86/include/asm/io_64.h b/arch/x86/include/asm/io_64.h index 563c16270ba..244067893af 100644 --- a/arch/x86/include/asm/io_64.h +++ b/arch/x86/include/asm/io_64.h | |||
| @@ -136,73 +136,12 @@ __OUTS(b) | |||
| 136 | __OUTS(w) | 136 | __OUTS(w) |
| 137 | __OUTS(l) | 137 | __OUTS(l) |
| 138 | 138 | ||
| 139 | #define IO_SPACE_LIMIT 0xffff | ||
| 140 | |||
| 141 | #if defined(__KERNEL__) && defined(__x86_64__) | 139 | #if defined(__KERNEL__) && defined(__x86_64__) |
| 142 | 140 | ||
| 143 | #include <linux/vmalloc.h> | 141 | #include <linux/vmalloc.h> |
| 144 | 142 | ||
| 145 | #ifndef __i386__ | ||
| 146 | /* | ||
| 147 | * Change virtual addresses to physical addresses and vv. | ||
| 148 | * These are pretty trivial | ||
| 149 | */ | ||
| 150 | static inline unsigned long virt_to_phys(volatile void *address) | ||
| 151 | { | ||
| 152 | return __pa(address); | ||
| 153 | } | ||
| 154 | |||
| 155 | static inline void *phys_to_virt(unsigned long address) | ||
| 156 | { | ||
| 157 | return __va(address); | ||
| 158 | } | ||
| 159 | #endif | ||
| 160 | |||
| 161 | /* | ||
| 162 | * Change "struct page" to physical address. | ||
| 163 | */ | ||
| 164 | #define page_to_phys(page) ((dma_addr_t)page_to_pfn(page) << PAGE_SHIFT) | ||
| 165 | |||
| 166 | #include <asm-generic/iomap.h> | 143 | #include <asm-generic/iomap.h> |
| 167 | 144 | ||
| 168 | /* | ||
| 169 | * This one maps high address device memory and turns off caching for that area. | ||
| 170 | * it's useful if some control registers are in such an area and write combining | ||
| 171 | * or read caching is not desirable: | ||
| 172 | */ | ||
| 173 | extern void __iomem *ioremap_nocache(resource_size_t offset, unsigned long size); | ||
| 174 | extern void __iomem *ioremap_cache(resource_size_t offset, unsigned long size); | ||
| 175 | extern void __iomem *ioremap_prot(resource_size_t offset, unsigned long size, | ||
| 176 | unsigned long prot_val); | ||
| 177 | |||
| 178 | /* | ||
| 179 | * The default ioremap() behavior is non-cached: | ||
| 180 | */ | ||
| 181 | static inline void __iomem *ioremap(resource_size_t offset, unsigned long size) | ||
| 182 | { | ||
| 183 | return ioremap_nocache(offset, size); | ||
| 184 | } | ||
| 185 | |||
| 186 | extern void iounmap(volatile void __iomem *addr); | ||
| 187 | |||
| 188 | extern void __iomem *fix_ioremap(unsigned idx, unsigned long phys); | ||
| 189 | |||
| 190 | /* | ||
| 191 | * ISA I/O bus memory addresses are 1:1 with the physical address. | ||
| 192 | */ | ||
| 193 | #define isa_virt_to_bus virt_to_phys | ||
| 194 | #define isa_page_to_bus page_to_phys | ||
| 195 | #define isa_bus_to_virt phys_to_virt | ||
| 196 | |||
| 197 | /* | ||
| 198 | * However PCI ones are not necessarily 1:1 and therefore these interfaces | ||
| 199 | * are forbidden in portable PCI drivers. | ||
| 200 | * | ||
| 201 | * Allow them on x86 for legacy drivers, though. | ||
| 202 | */ | ||
| 203 | #define virt_to_bus virt_to_phys | ||
| 204 | #define bus_to_virt phys_to_virt | ||
| 205 | |||
| 206 | void __memcpy_fromio(void *, unsigned long, unsigned); | 145 | void __memcpy_fromio(void *, unsigned long, unsigned); |
| 207 | void __memcpy_toio(unsigned long, const void *, unsigned); | 146 | void __memcpy_toio(unsigned long, const void *, unsigned); |
| 208 | 147 | ||
