Changeset abf04a54 in mainline for kernel/arch
- Timestamp:
- 2011-08-20T13:39:25Z (14 years ago)
- Branches:
- lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
- Children:
- 4e6577c
- Parents:
- a0fc4be (diff), 667a4f8 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the(diff)
links above to see all the changes relative to each parent. - Location:
- kernel/arch
- Files:
-
- 2 edited
Legend:
- Unmodified
- Added
- Removed
-
kernel/arch/amd64/include/asm.h
ra0fc4be rabf04a54 77 77 } 78 78 79 #define IO_SPACE_BOUNDARY ((void *) (64 * 1024)) 80 79 81 /** Byte from port 80 82 * … … 87 89 NO_TRACE static inline uint8_t pio_read_8(ioport8_t *port) 88 90 { 89 uint8_t val; 90 91 asm volatile ( 92 "inb %w[port], %b[val]\n" 93 : [val] "=a" (val) 94 : [port] "d" (port) 95 ); 96 97 return val; 91 if (port < (ioport8_t *) IO_SPACE_BOUNDARY) { 92 uint8_t val; 93 asm volatile ( 94 "inb %w[port], %b[val]\n" 95 : [val] "=a" (val) 96 : [port] "d" (port) 97 ); 98 return val; 99 } else { 100 return (uint8_t) *port; 101 } 98 102 } 99 103 … … 108 112 NO_TRACE static inline uint16_t pio_read_16(ioport16_t *port) 109 113 { 110 uint16_t val; 111 112 asm volatile ( 113 "inw %w[port], %w[val]\n" 114 : [val] "=a" (val) 115 : [port] "d" (port) 116 ); 117 118 return val; 114 if (port < (ioport16_t *) IO_SPACE_BOUNDARY) { 115 uint16_t val; 116 asm volatile ( 117 "inw %w[port], %w[val]\n" 118 : [val] "=a" (val) 119 : [port] "d" (port) 120 ); 121 return val; 122 } else { 123 return (uint16_t) *port; 124 } 119 125 } 120 126 … … 129 135 NO_TRACE static inline uint32_t pio_read_32(ioport32_t *port) 130 136 { 131 uint32_t val; 132 133 asm volatile ( 134 "inl %w[port], %[val]\n" 135 : [val] "=a" (val) 136 : [port] "d" (port) 137 ); 138 139 return val; 137 if (port < (ioport32_t *) IO_SPACE_BOUNDARY) { 138 uint32_t val; 139 asm volatile ( 140 "inl %w[port], %[val]\n" 141 : [val] "=a" (val) 142 : [port] "d" (port) 143 ); 144 return val; 145 } else { 146 return (uint32_t) *port; 147 } 140 148 } 141 149 … … 150 158 NO_TRACE static inline void pio_write_8(ioport8_t *port, uint8_t val) 151 159 { 152 asm volatile ( 153 "outb %b[val], %w[port]\n" 154 :: [val] "a" (val), 155 [port] "d" (port) 156 ); 160 if (port < (ioport8_t *) IO_SPACE_BOUNDARY) { 161 asm volatile ( 162 "outb %b[val], %w[port]\n" 163 :: [val] "a" (val), [port] "d" (port) 164 ); 165 } else { 166 *port = val; 167 } 157 168 } 158 169 … … 167 178 NO_TRACE static inline void pio_write_16(ioport16_t *port, uint16_t val) 168 179 { 169 asm volatile ( 170 "outw %w[val], %w[port]\n" 171 :: [val] "a" (val), 172 [port] "d" (port) 173 ); 180 if (port < (ioport16_t *) IO_SPACE_BOUNDARY) { 181 asm volatile ( 182 "outw %w[val], %w[port]\n" 183 :: [val] "a" (val), [port] "d" (port) 184 ); 185 } else { 186 *port = val; 187 } 174 188 } 175 189 … … 184 198 NO_TRACE static inline void pio_write_32(ioport32_t *port, uint32_t val) 185 199 { 186 asm volatile ( 187 "outl %[val], %w[port]\n" 188 :: [val] "a" (val), 189 [port] "d" (port) 190 ); 200 if (port < (ioport32_t *) IO_SPACE_BOUNDARY) { 201 asm volatile ( 202 "outl %[val], %w[port]\n" 203 :: [val] "a" (val), [port] "d" (port) 204 ); 205 } else { 206 *port = val; 207 } 191 208 } 192 209 -
kernel/arch/ia32/include/asm.h
ra0fc4be rabf04a54 101 101 GEN_WRITE_REG(dr7) 102 102 103 #define IO_SPACE_BOUNDARY ((void *) (64 * 1024)) 104 103 105 /** Byte to port 104 106 * … … 111 113 NO_TRACE static inline void pio_write_8(ioport8_t *port, uint8_t val) 112 114 { 113 asm volatile ( 114 "outb %b[val], %w[port]\n" 115 :: [val] "a" (val), 116 [port] "d" (port) 117 ); 115 if (port < (ioport8_t *) IO_SPACE_BOUNDARY) { 116 asm volatile ( 117 "outb %b[val], %w[port]\n" 118 :: [val] "a" (val), [port] "d" (port) 119 ); 120 } else { 121 *port = val; 122 } 118 123 } 119 124 … … 128 133 NO_TRACE static inline void pio_write_16(ioport16_t *port, uint16_t val) 129 134 { 130 asm volatile ( 131 "outw %w[val], %w[port]\n" 132 :: [val] "a" (val), 133 [port] "d" (port) 134 ); 135 if (port < (ioport16_t *) IO_SPACE_BOUNDARY) { 136 asm volatile ( 137 "outw %w[val], %w[port]\n" 138 :: [val] "a" (val), [port] "d" (port) 139 ); 140 } else { 141 *port = val; 142 } 135 143 } 136 144 … … 145 153 NO_TRACE static inline void pio_write_32(ioport32_t *port, uint32_t val) 146 154 { 147 asm volatile ( 148 "outl %[val], %w[port]\n" 149 :: [val] "a" (val), 150 [port] "d" (port) 151 ); 155 if (port < (ioport32_t *) IO_SPACE_BOUNDARY) { 156 asm volatile ( 157 "outl %[val], %w[port]\n" 158 :: [val] "a" (val), [port] "d" (port) 159 ); 160 } else { 161 *port = val; 162 } 152 163 } 153 164 … … 162 173 NO_TRACE static inline uint8_t pio_read_8(ioport8_t *port) 163 174 { 164 uint8_t val; 165 166 asm volatile ( 167 "inb %w[port], %b[val]\n" 168 : [val] "=a" (val) 169 : [port] "d" (port) 170 ); 171 172 return val; 175 if (((void *)port) < IO_SPACE_BOUNDARY) { 176 uint8_t val; 177 asm volatile ( 178 "inb %w[port], %b[val]\n" 179 : [val] "=a" (val) 180 : [port] "d" (port) 181 ); 182 return val; 183 } else { 184 return (uint8_t) *port; 185 } 173 186 } 174 187 … … 183 196 NO_TRACE static inline uint16_t pio_read_16(ioport16_t *port) 184 197 { 185 uint16_t val; 186 187 asm volatile ( 188 "inw %w[port], %w[val]\n" 189 : [val] "=a" (val) 190 : [port] "d" (port) 191 ); 192 193 return val; 198 if (((void *)port) < IO_SPACE_BOUNDARY) { 199 uint16_t val; 200 asm volatile ( 201 "inw %w[port], %w[val]\n" 202 : [val] "=a" (val) 203 : [port] "d" (port) 204 ); 205 return val; 206 } else { 207 return (uint16_t) *port; 208 } 194 209 } 195 210 … … 204 219 NO_TRACE static inline uint32_t pio_read_32(ioport32_t *port) 205 220 { 206 uint32_t val; 207 208 asm volatile ( 209 "inl %w[port], %[val]\n" 210 : [val] "=a" (val) 211 : [port] "d" (port) 212 ); 213 214 return val; 221 if (((void *)port) < IO_SPACE_BOUNDARY) { 222 uint32_t val; 223 asm volatile ( 224 "inl %w[port], %[val]\n" 225 : [val] "=a" (val) 226 : [port] "d" (port) 227 ); 228 return val; 229 } else { 230 return (uint32_t) *port; 231 } 215 232 } 216 233
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