Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 1 | /* |
| 2 | * QEMU System Emulator |
| 3 | * |
| 4 | * Copyright (c) 2003-2008 Fabrice Bellard |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to deal |
| 8 | * in the Software without restriction, including without limitation the rights |
| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | * copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | * THE SOFTWARE. |
| 23 | */ |
| 24 | /* |
| 25 | * splitted out ioport related stuffs from vl.c. |
| 26 | */ |
| 27 | |
| 28 | #include "ioport.h" |
Prerna Saxena | bd3c9aa | 2010-08-11 17:15:11 +0530 | [diff] [blame] | 29 | #include "trace.h" |
Avi Kivity | 6bf9fd4 | 2011-09-26 14:52:26 +0300 | [diff] [blame] | 30 | #include "memory.h" |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 31 | |
| 32 | /***********************************************************/ |
| 33 | /* IO Port */ |
| 34 | |
| 35 | //#define DEBUG_UNUSED_IOPORT |
| 36 | //#define DEBUG_IOPORT |
| 37 | |
Isaku Yamahata | fc7083b | 2009-07-14 19:10:42 +0900 | [diff] [blame] | 38 | #ifdef DEBUG_UNUSED_IOPORT |
| 39 | # define LOG_UNUSED_IOPORT(fmt, ...) fprintf(stderr, fmt, ## __VA_ARGS__) |
| 40 | #else |
| 41 | # define LOG_UNUSED_IOPORT(fmt, ...) do{ } while (0) |
| 42 | #endif |
| 43 | |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 44 | #ifdef DEBUG_IOPORT |
| 45 | # define LOG_IOPORT(...) qemu_log_mask(CPU_LOG_IOPORT, ## __VA_ARGS__) |
| 46 | #else |
| 47 | # define LOG_IOPORT(...) do { } while (0) |
| 48 | #endif |
| 49 | |
| 50 | /* XXX: use a two level table to limit memory usage */ |
| 51 | |
| 52 | static void *ioport_opaque[MAX_IOPORTS]; |
| 53 | static IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS]; |
| 54 | static IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS]; |
Avi Kivity | c5b703a | 2012-03-05 17:36:19 +0200 | [diff] [blame] | 55 | static IOPortDestructor *ioport_destructor_table[MAX_IOPORTS]; |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 56 | |
| 57 | static IOPortReadFunc default_ioport_readb, default_ioport_readw, default_ioport_readl; |
| 58 | static IOPortWriteFunc default_ioport_writeb, default_ioport_writew, default_ioport_writel; |
| 59 | |
| 60 | static uint32_t ioport_read(int index, uint32_t address) |
| 61 | { |
Blue Swirl | 1dde6fc | 2009-09-06 16:32:13 +0000 | [diff] [blame] | 62 | static IOPortReadFunc * const default_func[3] = { |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 63 | default_ioport_readb, |
| 64 | default_ioport_readw, |
| 65 | default_ioport_readl |
| 66 | }; |
| 67 | IOPortReadFunc *func = ioport_read_table[index][address]; |
| 68 | if (!func) |
| 69 | func = default_func[index]; |
| 70 | return func(ioport_opaque[address], address); |
| 71 | } |
| 72 | |
| 73 | static void ioport_write(int index, uint32_t address, uint32_t data) |
| 74 | { |
Blue Swirl | 1dde6fc | 2009-09-06 16:32:13 +0000 | [diff] [blame] | 75 | static IOPortWriteFunc * const default_func[3] = { |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 76 | default_ioport_writeb, |
| 77 | default_ioport_writew, |
| 78 | default_ioport_writel |
| 79 | }; |
| 80 | IOPortWriteFunc *func = ioport_write_table[index][address]; |
| 81 | if (!func) |
| 82 | func = default_func[index]; |
| 83 | func(ioport_opaque[address], address, data); |
| 84 | } |
| 85 | |
| 86 | static uint32_t default_ioport_readb(void *opaque, uint32_t address) |
| 87 | { |
Isaku Yamahata | fc7083b | 2009-07-14 19:10:42 +0900 | [diff] [blame] | 88 | LOG_UNUSED_IOPORT("unused inb: port=0x%04"PRIx32"\n", address); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 89 | return 0xff; |
| 90 | } |
| 91 | |
| 92 | static void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data) |
| 93 | { |
Isaku Yamahata | fc7083b | 2009-07-14 19:10:42 +0900 | [diff] [blame] | 94 | LOG_UNUSED_IOPORT("unused outb: port=0x%04"PRIx32" data=0x%02"PRIx32"\n", |
| 95 | address, data); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 96 | } |
| 97 | |
| 98 | /* default is to make two byte accesses */ |
| 99 | static uint32_t default_ioport_readw(void *opaque, uint32_t address) |
| 100 | { |
| 101 | uint32_t data; |
| 102 | data = ioport_read(0, address); |
Isaku Yamahata | d56dd6c | 2009-07-02 19:32:07 +0900 | [diff] [blame] | 103 | address = (address + 1) & IOPORTS_MASK; |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 104 | data |= ioport_read(0, address) << 8; |
| 105 | return data; |
| 106 | } |
| 107 | |
| 108 | static void default_ioport_writew(void *opaque, uint32_t address, uint32_t data) |
| 109 | { |
| 110 | ioport_write(0, address, data & 0xff); |
Isaku Yamahata | d56dd6c | 2009-07-02 19:32:07 +0900 | [diff] [blame] | 111 | address = (address + 1) & IOPORTS_MASK; |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 112 | ioport_write(0, address, (data >> 8) & 0xff); |
| 113 | } |
| 114 | |
| 115 | static uint32_t default_ioport_readl(void *opaque, uint32_t address) |
| 116 | { |
Isaku Yamahata | fc7083b | 2009-07-14 19:10:42 +0900 | [diff] [blame] | 117 | LOG_UNUSED_IOPORT("unused inl: port=0x%04"PRIx32"\n", address); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 118 | return 0xffffffff; |
| 119 | } |
| 120 | |
| 121 | static void default_ioport_writel(void *opaque, uint32_t address, uint32_t data) |
| 122 | { |
Isaku Yamahata | fc7083b | 2009-07-14 19:10:42 +0900 | [diff] [blame] | 123 | LOG_UNUSED_IOPORT("unused outl: port=0x%04"PRIx32" data=0x%02"PRIx32"\n", |
| 124 | address, data); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 125 | } |
| 126 | |
Isaku Yamahata | 23e0aff | 2009-07-02 19:32:08 +0900 | [diff] [blame] | 127 | static int ioport_bsize(int size, int *bsize) |
| 128 | { |
| 129 | if (size == 1) { |
| 130 | *bsize = 0; |
| 131 | } else if (size == 2) { |
| 132 | *bsize = 1; |
| 133 | } else if (size == 4) { |
| 134 | *bsize = 2; |
| 135 | } else { |
| 136 | return -1; |
| 137 | } |
| 138 | return 0; |
| 139 | } |
| 140 | |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 141 | /* size is the word size in byte */ |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 142 | int register_ioport_read(pio_addr_t start, int length, int size, |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 143 | IOPortReadFunc *func, void *opaque) |
| 144 | { |
| 145 | int i, bsize; |
| 146 | |
Isaku Yamahata | 23e0aff | 2009-07-02 19:32:08 +0900 | [diff] [blame] | 147 | if (ioport_bsize(size, &bsize)) { |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 148 | hw_error("register_ioport_read: invalid size"); |
| 149 | return -1; |
| 150 | } |
Avi Kivity | bf3fb0e | 2011-07-26 14:26:15 +0300 | [diff] [blame] | 151 | for(i = start; i < start + length; ++i) { |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 152 | ioport_read_table[bsize][i] = func; |
| 153 | if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque) |
Andreas Färber | f66a99d | 2011-03-06 15:48:13 +0100 | [diff] [blame] | 154 | hw_error("register_ioport_read: invalid opaque for address 0x%x", |
| 155 | i); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 156 | ioport_opaque[i] = opaque; |
| 157 | } |
| 158 | return 0; |
| 159 | } |
| 160 | |
| 161 | /* size is the word size in byte */ |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 162 | int register_ioport_write(pio_addr_t start, int length, int size, |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 163 | IOPortWriteFunc *func, void *opaque) |
| 164 | { |
| 165 | int i, bsize; |
| 166 | |
Isaku Yamahata | 23e0aff | 2009-07-02 19:32:08 +0900 | [diff] [blame] | 167 | if (ioport_bsize(size, &bsize)) { |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 168 | hw_error("register_ioport_write: invalid size"); |
| 169 | return -1; |
| 170 | } |
Avi Kivity | bf3fb0e | 2011-07-26 14:26:15 +0300 | [diff] [blame] | 171 | for(i = start; i < start + length; ++i) { |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 172 | ioport_write_table[bsize][i] = func; |
| 173 | if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque) |
Andreas Färber | f66a99d | 2011-03-06 15:48:13 +0100 | [diff] [blame] | 174 | hw_error("register_ioport_write: invalid opaque for address 0x%x", |
| 175 | i); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 176 | ioport_opaque[i] = opaque; |
| 177 | } |
| 178 | return 0; |
| 179 | } |
| 180 | |
Avi Kivity | acd1c81 | 2010-11-17 11:50:09 +0200 | [diff] [blame] | 181 | static uint32_t ioport_readb_thunk(void *opaque, uint32_t addr) |
| 182 | { |
| 183 | IORange *ioport = opaque; |
| 184 | uint64_t data; |
| 185 | |
| 186 | ioport->ops->read(ioport, addr - ioport->base, 1, &data); |
| 187 | return data; |
| 188 | } |
| 189 | |
| 190 | static uint32_t ioport_readw_thunk(void *opaque, uint32_t addr) |
| 191 | { |
| 192 | IORange *ioport = opaque; |
| 193 | uint64_t data; |
| 194 | |
| 195 | ioport->ops->read(ioport, addr - ioport->base, 2, &data); |
| 196 | return data; |
| 197 | } |
| 198 | |
| 199 | static uint32_t ioport_readl_thunk(void *opaque, uint32_t addr) |
| 200 | { |
| 201 | IORange *ioport = opaque; |
| 202 | uint64_t data; |
| 203 | |
| 204 | ioport->ops->read(ioport, addr - ioport->base, 4, &data); |
| 205 | return data; |
| 206 | } |
| 207 | |
| 208 | static void ioport_writeb_thunk(void *opaque, uint32_t addr, uint32_t data) |
| 209 | { |
| 210 | IORange *ioport = opaque; |
| 211 | |
| 212 | ioport->ops->write(ioport, addr - ioport->base, 1, data); |
| 213 | } |
| 214 | |
| 215 | static void ioport_writew_thunk(void *opaque, uint32_t addr, uint32_t data) |
| 216 | { |
| 217 | IORange *ioport = opaque; |
| 218 | |
| 219 | ioport->ops->write(ioport, addr - ioport->base, 2, data); |
| 220 | } |
| 221 | |
| 222 | static void ioport_writel_thunk(void *opaque, uint32_t addr, uint32_t data) |
| 223 | { |
| 224 | IORange *ioport = opaque; |
| 225 | |
| 226 | ioport->ops->write(ioport, addr - ioport->base, 4, data); |
| 227 | } |
| 228 | |
Avi Kivity | c5b703a | 2012-03-05 17:36:19 +0200 | [diff] [blame] | 229 | static void iorange_destructor_thunk(void *opaque) |
| 230 | { |
| 231 | IORange *iorange = opaque; |
| 232 | |
| 233 | if (iorange->ops->destructor) { |
| 234 | iorange->ops->destructor(iorange); |
| 235 | } |
| 236 | } |
| 237 | |
Avi Kivity | acd1c81 | 2010-11-17 11:50:09 +0200 | [diff] [blame] | 238 | void ioport_register(IORange *ioport) |
| 239 | { |
| 240 | register_ioport_read(ioport->base, ioport->len, 1, |
| 241 | ioport_readb_thunk, ioport); |
| 242 | register_ioport_read(ioport->base, ioport->len, 2, |
| 243 | ioport_readw_thunk, ioport); |
| 244 | register_ioport_read(ioport->base, ioport->len, 4, |
| 245 | ioport_readl_thunk, ioport); |
| 246 | register_ioport_write(ioport->base, ioport->len, 1, |
| 247 | ioport_writeb_thunk, ioport); |
| 248 | register_ioport_write(ioport->base, ioport->len, 2, |
| 249 | ioport_writew_thunk, ioport); |
| 250 | register_ioport_write(ioport->base, ioport->len, 4, |
| 251 | ioport_writel_thunk, ioport); |
Avi Kivity | c5b703a | 2012-03-05 17:36:19 +0200 | [diff] [blame] | 252 | ioport_destructor_table[ioport->base] = iorange_destructor_thunk; |
Avi Kivity | acd1c81 | 2010-11-17 11:50:09 +0200 | [diff] [blame] | 253 | } |
| 254 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 255 | void isa_unassign_ioport(pio_addr_t start, int length) |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 256 | { |
| 257 | int i; |
| 258 | |
Avi Kivity | c5b703a | 2012-03-05 17:36:19 +0200 | [diff] [blame] | 259 | if (ioport_destructor_table[start]) { |
| 260 | ioport_destructor_table[start](ioport_opaque[start]); |
| 261 | ioport_destructor_table[start] = NULL; |
| 262 | } |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 263 | for(i = start; i < start + length; i++) { |
Paolo Bonzini | 6141dbf | 2011-07-15 17:10:15 +0200 | [diff] [blame] | 264 | ioport_read_table[0][i] = NULL; |
| 265 | ioport_read_table[1][i] = NULL; |
| 266 | ioport_read_table[2][i] = NULL; |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 267 | |
Paolo Bonzini | 6141dbf | 2011-07-15 17:10:15 +0200 | [diff] [blame] | 268 | ioport_write_table[0][i] = NULL; |
| 269 | ioport_write_table[1][i] = NULL; |
| 270 | ioport_write_table[2][i] = NULL; |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 271 | |
| 272 | ioport_opaque[i] = NULL; |
| 273 | } |
| 274 | } |
| 275 | |
Paolo Bonzini | 6141dbf | 2011-07-15 17:10:15 +0200 | [diff] [blame] | 276 | bool isa_is_ioport_assigned(pio_addr_t start) |
| 277 | { |
| 278 | return (ioport_read_table[0][start] || ioport_write_table[0][start] || |
| 279 | ioport_read_table[1][start] || ioport_write_table[1][start] || |
| 280 | ioport_read_table[2][start] || ioport_write_table[2][start]); |
| 281 | } |
| 282 | |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 283 | /***********************************************************/ |
| 284 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 285 | void cpu_outb(pio_addr_t addr, uint8_t val) |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 286 | { |
Isaku Yamahata | 0732353 | 2009-07-14 19:10:43 +0900 | [diff] [blame] | 287 | LOG_IOPORT("outb: %04"FMT_pioaddr" %02"PRIx8"\n", addr, val); |
Prerna Saxena | bd3c9aa | 2010-08-11 17:15:11 +0530 | [diff] [blame] | 288 | trace_cpu_out(addr, val); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 289 | ioport_write(0, addr, val); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 290 | } |
| 291 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 292 | void cpu_outw(pio_addr_t addr, uint16_t val) |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 293 | { |
Isaku Yamahata | 0732353 | 2009-07-14 19:10:43 +0900 | [diff] [blame] | 294 | LOG_IOPORT("outw: %04"FMT_pioaddr" %04"PRIx16"\n", addr, val); |
Prerna Saxena | bd3c9aa | 2010-08-11 17:15:11 +0530 | [diff] [blame] | 295 | trace_cpu_out(addr, val); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 296 | ioport_write(1, addr, val); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 297 | } |
| 298 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 299 | void cpu_outl(pio_addr_t addr, uint32_t val) |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 300 | { |
Isaku Yamahata | 0732353 | 2009-07-14 19:10:43 +0900 | [diff] [blame] | 301 | LOG_IOPORT("outl: %04"FMT_pioaddr" %08"PRIx32"\n", addr, val); |
Prerna Saxena | bd3c9aa | 2010-08-11 17:15:11 +0530 | [diff] [blame] | 302 | trace_cpu_out(addr, val); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 303 | ioport_write(2, addr, val); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 304 | } |
| 305 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 306 | uint8_t cpu_inb(pio_addr_t addr) |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 307 | { |
Isaku Yamahata | 0732353 | 2009-07-14 19:10:43 +0900 | [diff] [blame] | 308 | uint8_t val; |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 309 | val = ioport_read(0, addr); |
Prerna Saxena | bd3c9aa | 2010-08-11 17:15:11 +0530 | [diff] [blame] | 310 | trace_cpu_in(addr, val); |
Isaku Yamahata | 0732353 | 2009-07-14 19:10:43 +0900 | [diff] [blame] | 311 | LOG_IOPORT("inb : %04"FMT_pioaddr" %02"PRIx8"\n", addr, val); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 312 | return val; |
| 313 | } |
| 314 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 315 | uint16_t cpu_inw(pio_addr_t addr) |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 316 | { |
Isaku Yamahata | 0732353 | 2009-07-14 19:10:43 +0900 | [diff] [blame] | 317 | uint16_t val; |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 318 | val = ioport_read(1, addr); |
Prerna Saxena | bd3c9aa | 2010-08-11 17:15:11 +0530 | [diff] [blame] | 319 | trace_cpu_in(addr, val); |
Isaku Yamahata | 0732353 | 2009-07-14 19:10:43 +0900 | [diff] [blame] | 320 | LOG_IOPORT("inw : %04"FMT_pioaddr" %04"PRIx16"\n", addr, val); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 321 | return val; |
| 322 | } |
| 323 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 324 | uint32_t cpu_inl(pio_addr_t addr) |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 325 | { |
Isaku Yamahata | 0732353 | 2009-07-14 19:10:43 +0900 | [diff] [blame] | 326 | uint32_t val; |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 327 | val = ioport_read(2, addr); |
Prerna Saxena | bd3c9aa | 2010-08-11 17:15:11 +0530 | [diff] [blame] | 328 | trace_cpu_in(addr, val); |
Isaku Yamahata | 0732353 | 2009-07-14 19:10:43 +0900 | [diff] [blame] | 329 | LOG_IOPORT("inl : %04"FMT_pioaddr" %08"PRIx32"\n", addr, val); |
Isaku Yamahata | 3299397 | 2009-07-02 19:32:06 +0900 | [diff] [blame] | 330 | return val; |
| 331 | } |
Avi Kivity | 6bf9fd4 | 2011-09-26 14:52:26 +0300 | [diff] [blame] | 332 | |
| 333 | void portio_list_init(PortioList *piolist, |
| 334 | const MemoryRegionPortio *callbacks, |
| 335 | void *opaque, const char *name) |
| 336 | { |
| 337 | unsigned n = 0; |
| 338 | |
| 339 | while (callbacks[n].size) { |
| 340 | ++n; |
| 341 | } |
| 342 | |
| 343 | piolist->ports = callbacks; |
| 344 | piolist->nr = 0; |
| 345 | piolist->regions = g_new0(MemoryRegion *, n); |
Avi Kivity | de58ac7 | 2012-01-08 19:46:17 +0200 | [diff] [blame] | 346 | piolist->aliases = g_new0(MemoryRegion *, n); |
Avi Kivity | 6bf9fd4 | 2011-09-26 14:52:26 +0300 | [diff] [blame] | 347 | piolist->address_space = NULL; |
| 348 | piolist->opaque = opaque; |
| 349 | piolist->name = name; |
| 350 | } |
| 351 | |
| 352 | void portio_list_destroy(PortioList *piolist) |
| 353 | { |
| 354 | g_free(piolist->regions); |
Avi Kivity | de58ac7 | 2012-01-08 19:46:17 +0200 | [diff] [blame] | 355 | g_free(piolist->aliases); |
Avi Kivity | 6bf9fd4 | 2011-09-26 14:52:26 +0300 | [diff] [blame] | 356 | } |
| 357 | |
| 358 | static void portio_list_add_1(PortioList *piolist, |
| 359 | const MemoryRegionPortio *pio_init, |
| 360 | unsigned count, unsigned start, |
| 361 | unsigned off_low, unsigned off_high) |
| 362 | { |
| 363 | MemoryRegionPortio *pio; |
| 364 | MemoryRegionOps *ops; |
Avi Kivity | de58ac7 | 2012-01-08 19:46:17 +0200 | [diff] [blame] | 365 | MemoryRegion *region, *alias; |
Avi Kivity | 6bf9fd4 | 2011-09-26 14:52:26 +0300 | [diff] [blame] | 366 | unsigned i; |
| 367 | |
| 368 | /* Copy the sub-list and null-terminate it. */ |
| 369 | pio = g_new(MemoryRegionPortio, count + 1); |
| 370 | memcpy(pio, pio_init, sizeof(MemoryRegionPortio) * count); |
| 371 | memset(pio + count, 0, sizeof(MemoryRegionPortio)); |
| 372 | |
| 373 | /* Adjust the offsets to all be zero-based for the region. */ |
| 374 | for (i = 0; i < count; ++i) { |
| 375 | pio[i].offset -= off_low; |
| 376 | } |
| 377 | |
| 378 | ops = g_new0(MemoryRegionOps, 1); |
| 379 | ops->old_portio = pio; |
| 380 | |
| 381 | region = g_new(MemoryRegion, 1); |
Avi Kivity | de58ac7 | 2012-01-08 19:46:17 +0200 | [diff] [blame] | 382 | alias = g_new(MemoryRegion, 1); |
| 383 | /* |
| 384 | * Use an alias so that the callback is called with an absolute address, |
| 385 | * rather than an offset relative to to start + off_low. |
| 386 | */ |
Avi Kivity | 6bf9fd4 | 2011-09-26 14:52:26 +0300 | [diff] [blame] | 387 | memory_region_init_io(region, ops, piolist->opaque, piolist->name, |
Blue Swirl | 4200872 | 2012-03-10 16:57:10 +0000 | [diff] [blame] | 388 | INT64_MAX); |
Avi Kivity | de58ac7 | 2012-01-08 19:46:17 +0200 | [diff] [blame] | 389 | memory_region_init_alias(alias, piolist->name, |
| 390 | region, start + off_low, off_high - off_low); |
Avi Kivity | 6bf9fd4 | 2011-09-26 14:52:26 +0300 | [diff] [blame] | 391 | memory_region_add_subregion(piolist->address_space, |
Avi Kivity | de58ac7 | 2012-01-08 19:46:17 +0200 | [diff] [blame] | 392 | start + off_low, alias); |
| 393 | piolist->regions[piolist->nr] = region; |
| 394 | piolist->aliases[piolist->nr] = alias; |
| 395 | ++piolist->nr; |
Avi Kivity | 6bf9fd4 | 2011-09-26 14:52:26 +0300 | [diff] [blame] | 396 | } |
| 397 | |
| 398 | void portio_list_add(PortioList *piolist, |
| 399 | MemoryRegion *address_space, |
| 400 | uint32_t start) |
| 401 | { |
| 402 | const MemoryRegionPortio *pio, *pio_start = piolist->ports; |
| 403 | unsigned int off_low, off_high, off_last, count; |
| 404 | |
| 405 | piolist->address_space = address_space; |
| 406 | |
| 407 | /* Handle the first entry specially. */ |
| 408 | off_last = off_low = pio_start->offset; |
| 409 | off_high = off_low + pio_start->len; |
| 410 | count = 1; |
| 411 | |
| 412 | for (pio = pio_start + 1; pio->size != 0; pio++, count++) { |
| 413 | /* All entries must be sorted by offset. */ |
| 414 | assert(pio->offset >= off_last); |
| 415 | off_last = pio->offset; |
| 416 | |
| 417 | /* If we see a hole, break the region. */ |
| 418 | if (off_last > off_high) { |
| 419 | portio_list_add_1(piolist, pio_start, count, start, off_low, |
| 420 | off_high); |
| 421 | /* ... and start collecting anew. */ |
| 422 | pio_start = pio; |
| 423 | off_low = off_last; |
| 424 | off_high = off_low + pio->len; |
| 425 | count = 0; |
| 426 | } else if (off_last + pio->len > off_high) { |
| 427 | off_high = off_last + pio->len; |
| 428 | } |
| 429 | } |
| 430 | |
| 431 | /* There will always be an open sub-list. */ |
| 432 | portio_list_add_1(piolist, pio_start, count, start, off_low, off_high); |
| 433 | } |
| 434 | |
| 435 | void portio_list_del(PortioList *piolist) |
| 436 | { |
Avi Kivity | de58ac7 | 2012-01-08 19:46:17 +0200 | [diff] [blame] | 437 | MemoryRegion *mr, *alias; |
Avi Kivity | 6bf9fd4 | 2011-09-26 14:52:26 +0300 | [diff] [blame] | 438 | unsigned i; |
| 439 | |
| 440 | for (i = 0; i < piolist->nr; ++i) { |
| 441 | mr = piolist->regions[i]; |
Avi Kivity | de58ac7 | 2012-01-08 19:46:17 +0200 | [diff] [blame] | 442 | alias = piolist->aliases[i]; |
| 443 | memory_region_del_subregion(piolist->address_space, alias); |
| 444 | memory_region_destroy(alias); |
Avi Kivity | 6bf9fd4 | 2011-09-26 14:52:26 +0300 | [diff] [blame] | 445 | memory_region_destroy(mr); |
| 446 | g_free((MemoryRegionOps *)mr->ops); |
| 447 | g_free(mr); |
Avi Kivity | de58ac7 | 2012-01-08 19:46:17 +0200 | [diff] [blame] | 448 | g_free(alias); |
Avi Kivity | 6bf9fd4 | 2011-09-26 14:52:26 +0300 | [diff] [blame] | 449 | piolist->regions[i] = NULL; |
Avi Kivity | de58ac7 | 2012-01-08 19:46:17 +0200 | [diff] [blame] | 450 | piolist->aliases[i] = NULL; |
Avi Kivity | 6bf9fd4 | 2011-09-26 14:52:26 +0300 | [diff] [blame] | 451 | } |
| 452 | } |