projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public | |
| 3 | * License. See the file "COPYING" in the main directory of this archive | |
| 4 | * for more details. | |
| 5 | * | |
| 6 | * Copyright (C) 1995, 96, 97, 98, 99, 2000, 01, 02 by Ralf Baechle | |
| 7 | * Copyright (C) 1999, 2000 Silicon Graphics, Inc. | |
| 8 | * Copyright (C) 2001 MIPS Technologies, Inc. | |
| 9 | */ | |
| 10 | #include <linux/config.h> | |
| 11 | #include <linux/errno.h> | |
| 12 | #include <asm/asm.h> | |
| 13 | #include <asm/asmmacro.h> | |
| 14 | #include <asm/mipsregs.h> | |
| 15 | #include <asm/regdef.h> | |
| 16 | #include <asm/stackframe.h> | |
| 048eb582 | 17 | #include <asm/asm-offsets.h> |
| 1da177e4 LT |
18 | #include <asm/sysmips.h> |
| 19 | #include <asm/thread_info.h> | |
| 20 | #include <asm/unistd.h> | |
| 21 | #include <asm/war.h> | |
| 22 | ||
| 23 | #ifndef CONFIG_BINFMT_ELF32 | |
| 24 | /* Neither O32 nor N32, so define handle_sys here */ | |
| 25 | #define handle_sys64 handle_sys | |
| 26 | #endif | |
| 27 | ||
| 28 | .align 5 | |
| 29 | NESTED(handle_sys64, PT_SIZE, sp) | |
| 30 | #if !defined(CONFIG_MIPS32_O32) && !defined(CONFIG_MIPS32_N32) | |
| 31 | /* | |
| 32 | * When 32-bit compatibility is configured scall_o32.S | |
| 33 | * already did this. | |
| 34 | */ | |
| 35 | .set noat | |
| 36 | SAVE_SOME | |
| 37 | STI | |
| 38 | .set at | |
| 39 | #endif | |
| 40 | ||
| 41 | dsubu t0, v0, __NR_64_Linux # check syscall number | |
| 42 | sltiu t0, t0, __NR_64_Linux_syscalls + 1 | |
| 43 | #if !defined(CONFIG_MIPS32_O32) && !defined(CONFIG_MIPS32_N32) | |
| 44 | ld t1, PT_EPC(sp) # skip syscall on return | |
| 45 | daddiu t1, 4 # skip to next instruction | |
| 46 | sd t1, PT_EPC(sp) | |
| 47 | #endif | |
| 48 | beqz t0, illegal_syscall | |
| 49 | ||
| 50 | dsll t0, v0, 3 # offset into table | |
| 51 | ld t2, (sys_call_table - (__NR_64_Linux * 8))(t0) | |
| 52 | # syscall routine | |
| 53 | ||
| 54 | sd a3, PT_R26(sp) # save a3 for syscall restarting | |
| 55 | ||
| 56 | li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | |
| 57 | LONG_L t0, TI_FLAGS($28) # syscall tracing enabled? | |
| 58 | and t0, t1, t0 | |
| 59 | bnez t0, syscall_trace_entry | |
| 60 | ||
| 61 | jalr t2 # Do The Real Thing (TM) | |
| 62 | ||
| 63 | li t0, -EMAXERRNO - 1 # error? | |
| 64 | sltu t0, t0, v0 | |
| 65 | sd t0, PT_R7(sp) # set error flag | |
| 66 | beqz t0, 1f | |
| 67 | ||
| 68 | dnegu v0 # error | |
| 69 | sd v0, PT_R0(sp) # set flag for syscall | |
| 70 | # restarting | |
| 71 | 1: sd v0, PT_R2(sp) # result | |
| 72 | ||
| 73 | n64_syscall_exit: | |
| 74 | local_irq_disable # make sure need_resched and | |
| 75 | # signals dont change between | |
| 76 | # sampling and return | |
| 77 | LONG_L a2, TI_FLAGS($28) # current->work | |
| 78 | li t0, _TIF_ALLWORK_MASK | |
| 79 | and t0, a2, t0 | |
| 80 | bnez t0, n64_syscall_exit_work | |
| 81 | ||
| 82 | j restore_partial | |
| 83 | ||
| 84 | n64_syscall_exit_work: | |
| 85 | j syscall_exit_work_partial | |
| 86 | ||
| 87 | /* ------------------------------------------------------------------------ */ | |
| 88 | ||
| 89 | syscall_trace_entry: | |
| 90 | SAVE_STATIC | |
| 91 | move s0, t2 | |
| 92 | move a0, sp | |
| 93 | li a1, 0 | |
| 94 | jal do_syscall_trace | |
| 95 | ||
| 04a7052c RB |
96 | move t0, s0 |
| 97 | RESTORE_STATIC | |
| 1da177e4 LT |
98 | ld a0, PT_R4(sp) # Restore argument registers |
| 99 | ld a1, PT_R5(sp) | |
| 100 | ld a2, PT_R6(sp) | |
| 101 | ld a3, PT_R7(sp) | |
| 102 | ld a4, PT_R8(sp) | |
| 103 | ld a5, PT_R9(sp) | |
| 04a7052c | 104 | jalr t0 |
| 1da177e4 LT |
105 | |
| 106 | li t0, -EMAXERRNO - 1 # error? | |
| 107 | sltu t0, t0, v0 | |
| 108 | sd t0, PT_R7(sp) # set error flag | |
| 109 | beqz t0, 1f | |
| 110 | ||
| 111 | dnegu v0 # error | |
| 112 | sd v0, PT_R0(sp) # set flag for syscall restarting | |
| 113 | 1: sd v0, PT_R2(sp) # result | |
| 114 | ||
| 115 | j syscall_exit | |
| 116 | ||
| 117 | illegal_syscall: | |
| 118 | /* This also isn't a 64-bit syscall, throw an error. */ | |
| 119 | li v0, -ENOSYS # error | |
| 120 | sd v0, PT_R2(sp) | |
| 121 | li t0, 1 # set error flag | |
| 122 | sd t0, PT_R7(sp) | |
| 123 | j n64_syscall_exit | |
| 124 | END(handle_sys64) | |
| 125 | ||
| 126 | LEAF(mips_atomic_set) | |
| 127 | andi v0, a1, 3 # must be word aligned | |
| 128 | bnez v0, bad_alignment | |
| 129 | ||
| 130 | LONG_L v1, TI_ADDR_LIMIT($28) # in legal address range? | |
| 131 | LONG_ADDIU a0, a1, 4 | |
| 132 | or a0, a0, a1 | |
| 133 | and a0, a0, v1 | |
| 134 | bltz a0, bad_address | |
| 135 | ||
| 136 | #ifdef CONFIG_CPU_HAS_LLSC | |
| 137 | /* Ok, this is the ll/sc case. World is sane :-) */ | |
| 138 | 1: ll v0, (a1) | |
| 139 | move a0, a2 | |
| 140 | 2: sc a0, (a1) | |
| 141 | #if R10000_LLSC_WAR | |
| 142 | beqzl a0, 1b | |
| 143 | #else | |
| 144 | beqz a0, 1b | |
| 145 | #endif | |
| 146 | ||
| 147 | .section __ex_table,"a" | |
| 148 | PTR 1b, bad_stack | |
| 149 | PTR 2b, bad_stack | |
| 150 | .previous | |
| 151 | #else | |
| 152 | sw a1, 16(sp) | |
| 153 | sw a2, 20(sp) | |
| 154 | ||
| 155 | move a0, sp | |
| 156 | move a2, a1 | |
| 157 | li a1, 1 | |
| 158 | jal do_page_fault | |
| 159 | ||
| 160 | lw a1, 16(sp) | |
| 161 | lw a2, 20(sp) | |
| 162 | ||
| 163 | /* | |
| 164 | * At this point the page should be readable and writable unless | |
| 165 | * there was no more memory available. | |
| 166 | */ | |
| 167 | 1: lw v0, (a1) | |
| 168 | 2: sw a2, (a1) | |
| 169 | ||
| 170 | .section __ex_table,"a" | |
| 171 | PTR 1b, no_mem | |
| 172 | PTR 2b, no_mem | |
| 173 | .previous | |
| 174 | #endif | |
| 175 | ||
| 176 | sd zero, PT_R7(sp) # success | |
| 177 | sd v0, PT_R2(sp) # result | |
| 178 | ||
| edcb98d1 | 179 | j n64_syscall_exit # continue like a normal syscall |
| 1da177e4 LT |
180 | |
| 181 | no_mem: li v0, -ENOMEM | |
| 182 | jr ra | |
| 183 | ||
| 184 | bad_address: | |
| 185 | li v0, -EFAULT | |
| 186 | jr ra | |
| 187 | ||
| 188 | bad_alignment: | |
| 189 | li v0, -EINVAL | |
| 190 | jr ra | |
| 191 | END(mips_atomic_set) | |
| 192 | ||
| 193 | LEAF(sys_sysmips) | |
| 194 | beq a0, MIPS_ATOMIC_SET, mips_atomic_set | |
| 195 | j _sys_sysmips | |
| 196 | END(sys_sysmips) | |
| 197 | ||
| 198 | .align 3 | |
| 199 | sys_call_table: | |
| 200 | PTR sys_read /* 5000 */ | |
| 201 | PTR sys_write | |
| 202 | PTR sys_open | |
| 203 | PTR sys_close | |
| 204 | PTR sys_newstat | |
| 205 | PTR sys_newfstat /* 5005 */ | |
| 206 | PTR sys_newlstat | |
| 207 | PTR sys_poll | |
| 208 | PTR sys_lseek | |
| 209 | PTR old_mmap | |
| 210 | PTR sys_mprotect /* 5010 */ | |
| 211 | PTR sys_munmap | |
| 212 | PTR sys_brk | |
| 213 | PTR sys_rt_sigaction | |
| 214 | PTR sys_rt_sigprocmask | |
| 215 | PTR sys_ioctl /* 5015 */ | |
| 216 | PTR sys_pread64 | |
| 217 | PTR sys_pwrite64 | |
| 218 | PTR sys_readv | |
| 219 | PTR sys_writev | |
| 220 | PTR sys_access /* 5020 */ | |
| 221 | PTR sys_pipe | |
| 222 | PTR sys_select | |
| 223 | PTR sys_sched_yield | |
| 224 | PTR sys_mremap | |
| 225 | PTR sys_msync /* 5025 */ | |
| 226 | PTR sys_mincore | |
| 227 | PTR sys_madvise | |
| 228 | PTR sys_shmget | |
| 229 | PTR sys_shmat | |
| 230 | PTR sys_shmctl /* 5030 */ | |
| 231 | PTR sys_dup | |
| 232 | PTR sys_dup2 | |
| 233 | PTR sys_pause | |
| 234 | PTR sys_nanosleep | |
| 235 | PTR sys_getitimer /* 5035 */ | |
| 236 | PTR sys_setitimer | |
| 237 | PTR sys_alarm | |
| 238 | PTR sys_getpid | |
| 239 | PTR sys_sendfile64 | |
| 240 | PTR sys_socket /* 5040 */ | |
| 241 | PTR sys_connect | |
| 242 | PTR sys_accept | |
| 243 | PTR sys_sendto | |
| 244 | PTR sys_recvfrom | |
| 245 | PTR sys_sendmsg /* 5045 */ | |
| 246 | PTR sys_recvmsg | |
| 247 | PTR sys_shutdown | |
| 248 | PTR sys_bind | |
| 249 | PTR sys_listen | |
| 250 | PTR sys_getsockname /* 5050 */ | |
| 251 | PTR sys_getpeername | |
| 252 | PTR sys_socketpair | |
| 253 | PTR sys_setsockopt | |
| 254 | PTR sys_getsockopt | |
| 255 | PTR sys_clone /* 5055 */ | |
| 256 | PTR sys_fork | |
| 257 | PTR sys_execve | |
| 258 | PTR sys_exit | |
| 259 | PTR sys_wait4 | |
| 260 | PTR sys_kill /* 5060 */ | |
| 261 | PTR sys_newuname | |
| 262 | PTR sys_semget | |
| 263 | PTR sys_semop | |
| 264 | PTR sys_semctl | |
| 265 | PTR sys_shmdt /* 5065 */ | |
| 266 | PTR sys_msgget | |
| 267 | PTR sys_msgsnd | |
| 268 | PTR sys_msgrcv | |
| 269 | PTR sys_msgctl | |
| 270 | PTR sys_fcntl /* 5070 */ | |
| 271 | PTR sys_flock | |
| 272 | PTR sys_fsync | |
| 273 | PTR sys_fdatasync | |
| 274 | PTR sys_truncate | |
| 275 | PTR sys_ftruncate /* 5075 */ | |
| 276 | PTR sys_getdents | |
| 277 | PTR sys_getcwd | |
| 278 | PTR sys_chdir | |
| 279 | PTR sys_fchdir | |
| 280 | PTR sys_rename /* 5080 */ | |
| 281 | PTR sys_mkdir | |
| 282 | PTR sys_rmdir | |
| 283 | PTR sys_creat | |
| 284 | PTR sys_link | |
| 285 | PTR sys_unlink /* 5085 */ | |
| 286 | PTR sys_symlink | |
| 287 | PTR sys_readlink | |
| 288 | PTR sys_chmod | |
| 289 | PTR sys_fchmod | |
| 290 | PTR sys_chown /* 5090 */ | |
| 291 | PTR sys_fchown | |
| 292 | PTR sys_lchown | |
| 293 | PTR sys_umask | |
| 294 | PTR sys_gettimeofday | |
| 295 | PTR sys_getrlimit /* 5095 */ | |
| 296 | PTR sys_getrusage | |
| 297 | PTR sys_sysinfo | |
| 298 | PTR sys_times | |
| 299 | PTR sys_ptrace | |
| 300 | PTR sys_getuid /* 5100 */ | |
| 301 | PTR sys_syslog | |
| 302 | PTR sys_getgid | |
| 303 | PTR sys_setuid | |
| 304 | PTR sys_setgid | |
| 305 | PTR sys_geteuid /* 5105 */ | |
| 306 | PTR sys_getegid | |
| 307 | PTR sys_setpgid | |
| 308 | PTR sys_getppid | |
| 309 | PTR sys_getpgrp | |
| 310 | PTR sys_setsid /* 5110 */ | |
| 311 | PTR sys_setreuid | |
| 312 | PTR sys_setregid | |
| 313 | PTR sys_getgroups | |
| 314 | PTR sys_setgroups | |
| 315 | PTR sys_setresuid /* 5115 */ | |
| 316 | PTR sys_getresuid | |
| 317 | PTR sys_setresgid | |
| 318 | PTR sys_getresgid | |
| 319 | PTR sys_getpgid | |
| 320 | PTR sys_setfsuid /* 5120 */ | |
| 321 | PTR sys_setfsgid | |
| 322 | PTR sys_getsid | |
| 323 | PTR sys_capget | |
| 324 | PTR sys_capset | |
| 325 | PTR sys_rt_sigpending /* 5125 */ | |
| 326 | PTR sys_rt_sigtimedwait | |
| 327 | PTR sys_rt_sigqueueinfo | |
| 328 | PTR sys_rt_sigsuspend | |
| 329 | PTR sys_sigaltstack | |
| 330 | PTR sys_utime /* 5130 */ | |
| 331 | PTR sys_mknod | |
| 332 | PTR sys_personality | |
| 333 | PTR sys_ustat | |
| 334 | PTR sys_statfs | |
| 335 | PTR sys_fstatfs /* 5135 */ | |
| 336 | PTR sys_sysfs | |
| 337 | PTR sys_getpriority | |
| 338 | PTR sys_setpriority | |
| 339 | PTR sys_sched_setparam | |
| 340 | PTR sys_sched_getparam /* 5140 */ | |
| 341 | PTR sys_sched_setscheduler | |
| 342 | PTR sys_sched_getscheduler | |
| 343 | PTR sys_sched_get_priority_max | |
| 344 | PTR sys_sched_get_priority_min | |
| 345 | PTR sys_sched_rr_get_interval /* 5145 */ | |
| 346 | PTR sys_mlock | |
| 347 | PTR sys_munlock | |
| 348 | PTR sys_mlockall | |
| 349 | PTR sys_munlockall | |
| 350 | PTR sys_vhangup /* 5150 */ | |
| 351 | PTR sys_pivot_root | |
| 352 | PTR sys_sysctl | |
| 353 | PTR sys_prctl | |
| 354 | PTR sys_adjtimex | |
| 355 | PTR sys_setrlimit /* 5155 */ | |
| 356 | PTR sys_chroot | |
| 357 | PTR sys_sync | |
| 358 | PTR sys_acct | |
| 359 | PTR sys_settimeofday | |
| 360 | PTR sys_mount /* 5160 */ | |
| 361 | PTR sys_umount | |
| 362 | PTR sys_swapon | |
| 363 | PTR sys_swapoff | |
| 364 | PTR sys_reboot | |
| 365 | PTR sys_sethostname /* 5165 */ | |
| 366 | PTR sys_setdomainname | |
| 367 | PTR sys_ni_syscall /* was create_module */ | |
| 368 | PTR sys_init_module | |
| 369 | PTR sys_delete_module | |
| 370 | PTR sys_ni_syscall /* 5170, was get_kernel_syms */ | |
| 371 | PTR sys_ni_syscall /* was query_module */ | |
| 372 | PTR sys_quotactl | |
| 373 | PTR sys_nfsservctl | |
| 374 | PTR sys_ni_syscall /* res. for getpmsg */ | |
| 375 | PTR sys_ni_syscall /* 5175 for putpmsg */ | |
| 376 | PTR sys_ni_syscall /* res. for afs_syscall */ | |
| 377 | PTR sys_ni_syscall /* res. for security */ | |
| 378 | PTR sys_gettid | |
| 379 | PTR sys_readahead | |
| 380 | PTR sys_setxattr /* 5180 */ | |
| 381 | PTR sys_lsetxattr | |
| 382 | PTR sys_fsetxattr | |
| 383 | PTR sys_getxattr | |
| 384 | PTR sys_lgetxattr | |
| 385 | PTR sys_fgetxattr /* 5185 */ | |
| 386 | PTR sys_listxattr | |
| 387 | PTR sys_llistxattr | |
| 388 | PTR sys_flistxattr | |
| 389 | PTR sys_removexattr | |
| 390 | PTR sys_lremovexattr /* 5190 */ | |
| 391 | PTR sys_fremovexattr | |
| 392 | PTR sys_tkill | |
| 393 | PTR sys_ni_syscall | |
| 394 | PTR sys_futex | |
| 395 | PTR sys_sched_setaffinity /* 5195 */ | |
| 396 | PTR sys_sched_getaffinity | |
| 397 | PTR sys_cacheflush | |
| 398 | PTR sys_cachectl | |
| 399 | PTR sys_sysmips | |
| 400 | PTR sys_io_setup /* 5200 */ | |
| 401 | PTR sys_io_destroy | |
| 402 | PTR sys_io_getevents | |
| 403 | PTR sys_io_submit | |
| 404 | PTR sys_io_cancel | |
| 405 | PTR sys_exit_group /* 5205 */ | |
| 406 | PTR sys_lookup_dcookie | |
| 407 | PTR sys_epoll_create | |
| 408 | PTR sys_epoll_ctl | |
| 409 | PTR sys_epoll_wait | |
| 410 | PTR sys_remap_file_pages /* 5210 */ | |
| 411 | PTR sys_rt_sigreturn | |
| 412 | PTR sys_set_tid_address | |
| 413 | PTR sys_restart_syscall | |
| 414 | PTR sys_semtimedop | |
| 415 | PTR sys_fadvise64_64 /* 5215 */ | |
| 416 | PTR sys_timer_create | |
| 417 | PTR sys_timer_settime | |
| 418 | PTR sys_timer_gettime | |
| 419 | PTR sys_timer_getoverrun | |
| 420 | PTR sys_timer_delete /* 5220 */ | |
| 421 | PTR sys_clock_settime | |
| 422 | PTR sys_clock_gettime | |
| 423 | PTR sys_clock_getres | |
| 424 | PTR sys_clock_nanosleep | |
| 425 | PTR sys_tgkill /* 5225 */ | |
| 426 | PTR sys_utimes | |
| 427 | PTR sys_mbind | |
| 428 | PTR sys_ni_syscall /* sys_get_mempolicy */ | |
| 429 | PTR sys_ni_syscall /* sys_set_mempolicy */ | |
| 430 | PTR sys_mq_open /* 5230 */ | |
| 431 | PTR sys_mq_unlink | |
| 432 | PTR sys_mq_timedsend | |
| 433 | PTR sys_mq_timedreceive | |
| 434 | PTR sys_mq_notify | |
| 435 | PTR sys_mq_getsetattr /* 5235 */ | |
| 436 | PTR sys_ni_syscall /* sys_vserver */ | |
| 437 | PTR sys_waitid | |
| 438 | PTR sys_ni_syscall /* available, was setaltroot */ | |
| 439 | PTR sys_add_key | |
| 440 | PTR sys_request_key /* 5240 */ | |
| 441 | PTR sys_keyctl | |
| 3c37026d | 442 | PTR sys_set_thread_area |
| 7db36c85 RB |
443 | PTR sys_inotify_init |
| 444 | PTR sys_inotify_add_watch | |
| 445 | PTR sys_inotify_rm_watch /* 5245 */ | |
| 72bf8914 RB |
446 | PTR sys_migrate_pages |
| 447 | PTR sys_openat | |
| 448 | PTR sys_mkdirat | |
| 449 | PTR sys_mknodat | |
| 450 | PTR sys_fchownat /* 5250 */ | |
| 451 | PTR sys_futimesat | |
| 452 | PTR sys_newfstatat | |
| 453 | PTR sys_unlinkat | |
| 454 | PTR sys_renameat | |
| 455 | PTR sys_linkat /* 5255 */ | |
| 456 | PTR sys_symlinkat | |
| 457 | PTR sys_readlinkat | |
| 458 | PTR sys_fchmodat | |
| 459 | PTR sys_faccessat | |
| 460 | PTR sys_pselect6 /* 5260 */ | |
| 461 | PTR sys_ppoll | |
| 462 | PTR sys_unshare | |
| f115da9c | 463 | PTR sys_splice |
| a8d587a7 | 464 | PTR sys_sync_file_range |