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
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.
10 #include <linux/errno.h>
12 #include <asm/asmmacro.h>
13 #include <asm/mipsregs.h>
14 #include <asm/regdef.h>
15 #include <asm/stackframe.h>
16 #include <asm/asm-offsets.h>
17 #include <asm/sysmips.h>
18 #include <asm/thread_info.h>
19 #include <asm/unistd.h>
22 #ifndef CONFIG_BINFMT_ELF32
23 /* Neither O32 nor N32, so define handle_sys here */
24 #define handle_sys64 handle_sys
28 NESTED(handle_sys64, PT_SIZE, sp)
29 #if !defined(CONFIG_MIPS32_O32) && !defined(CONFIG_MIPS32_N32)
31 * When 32-bit compatibility is configured scall_o32.S
40 dsubu t0, v0, __NR_64_Linux # check syscall number
41 sltiu t0, t0, __NR_64_Linux_syscalls + 1
42 #if !defined(CONFIG_MIPS32_O32) && !defined(CONFIG_MIPS32_N32)
43 ld t1, PT_EPC(sp) # skip syscall on return
44 daddiu t1, 4 # skip to next instruction
47 beqz t0, illegal_syscall
49 dsll t0, v0, 3 # offset into table
50 ld t2, (sys_call_table - (__NR_64_Linux * 8))(t0)
53 sd a3, PT_R26(sp) # save a3 for syscall restarting
55 li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
56 LONG_L t0, TI_FLAGS($28) # syscall tracing enabled?
58 bnez t0, syscall_trace_entry
60 jalr t2 # Do The Real Thing (TM)
62 li t0, -EMAXERRNO - 1 # error?
64 sd t0, PT_R7(sp) # set error flag
68 sd v0, PT_R0(sp) # set flag for syscall
70 1: sd v0, PT_R2(sp) # result
73 local_irq_disable # make sure need_resched and
74 # signals dont change between
76 LONG_L a2, TI_FLAGS($28) # current->work
77 li t0, _TIF_ALLWORK_MASK
79 bnez t0, n64_syscall_exit_work
83 n64_syscall_exit_work:
84 j syscall_exit_work_partial
86 /* ------------------------------------------------------------------------ */
97 ld a0, PT_R4(sp) # Restore argument registers
105 li t0, -EMAXERRNO - 1 # error?
107 sd t0, PT_R7(sp) # set error flag
111 sd v0, PT_R0(sp) # set flag for syscall restarting
112 1: sd v0, PT_R2(sp) # result
117 /* This also isn't a 64-bit syscall, throw an error. */
118 li v0, -ENOSYS # error
120 li t0, 1 # set error flag
125 LEAF(mips_atomic_set)
126 andi v0, a1, 3 # must be word aligned
127 bnez v0, bad_alignment
129 LONG_L v1, TI_ADDR_LIMIT($28) # in legal address range?
135 #ifdef CONFIG_CPU_HAS_LLSC
136 /* Ok, this is the ll/sc case. World is sane :-) */
146 .section __ex_table,"a"
163 * At this point the page should be readable and writable unless
164 * there was no more memory available.
169 .section __ex_table,"a"
175 sd zero, PT_R7(sp) # success
176 sd v0, PT_R2(sp) # result
178 j n64_syscall_exit # continue like a normal syscall
180 no_mem: li v0, -ENOMEM
193 beq a0, MIPS_ATOMIC_SET, mips_atomic_set
199 PTR sys_read /* 5000 */
204 PTR sys_newfstat /* 5005 */
209 PTR sys_mprotect /* 5010 */
213 PTR sys_rt_sigprocmask
214 PTR sys_ioctl /* 5015 */
219 PTR sys_access /* 5020 */
224 PTR sys_msync /* 5025 */
229 PTR sys_shmctl /* 5030 */
234 PTR sys_getitimer /* 5035 */
239 PTR sys_socket /* 5040 */
244 PTR sys_sendmsg /* 5045 */
249 PTR sys_getsockname /* 5050 */
254 PTR sys_clone /* 5055 */
259 PTR sys_kill /* 5060 */
264 PTR sys_shmdt /* 5065 */
269 PTR sys_fcntl /* 5070 */
274 PTR sys_ftruncate /* 5075 */
279 PTR sys_rename /* 5080 */
284 PTR sys_unlink /* 5085 */
289 PTR sys_chown /* 5090 */
294 PTR sys_getrlimit /* 5095 */
299 PTR sys_getuid /* 5100 */
304 PTR sys_geteuid /* 5105 */
309 PTR sys_setsid /* 5110 */
314 PTR sys_setresuid /* 5115 */
319 PTR sys_setfsuid /* 5120 */
324 PTR sys_rt_sigpending /* 5125 */
325 PTR sys_rt_sigtimedwait
326 PTR sys_rt_sigqueueinfo
327 PTR sys_rt_sigsuspend
329 PTR sys_utime /* 5130 */
334 PTR sys_fstatfs /* 5135 */
338 PTR sys_sched_setparam
339 PTR sys_sched_getparam /* 5140 */
340 PTR sys_sched_setscheduler
341 PTR sys_sched_getscheduler
342 PTR sys_sched_get_priority_max
343 PTR sys_sched_get_priority_min
344 PTR sys_sched_rr_get_interval /* 5145 */
349 PTR sys_vhangup /* 5150 */
354 PTR sys_setrlimit /* 5155 */
359 PTR sys_mount /* 5160 */
364 PTR sys_sethostname /* 5165 */
365 PTR sys_setdomainname
366 PTR sys_ni_syscall /* was create_module */
368 PTR sys_delete_module
369 PTR sys_ni_syscall /* 5170, was get_kernel_syms */
370 PTR sys_ni_syscall /* was query_module */
373 PTR sys_ni_syscall /* res. for getpmsg */
374 PTR sys_ni_syscall /* 5175 for putpmsg */
375 PTR sys_ni_syscall /* res. for afs_syscall */
376 PTR sys_ni_syscall /* res. for security */
379 PTR sys_setxattr /* 5180 */
384 PTR sys_fgetxattr /* 5185 */
389 PTR sys_lremovexattr /* 5190 */
394 PTR sys_sched_setaffinity /* 5195 */
395 PTR sys_sched_getaffinity
399 PTR sys_io_setup /* 5200 */
404 PTR sys_exit_group /* 5205 */
405 PTR sys_lookup_dcookie
409 PTR sys_remap_file_pages /* 5210 */
411 PTR sys_set_tid_address
412 PTR sys_restart_syscall
414 PTR sys_fadvise64_64 /* 5215 */
416 PTR sys_timer_settime
417 PTR sys_timer_gettime
418 PTR sys_timer_getoverrun
419 PTR sys_timer_delete /* 5220 */
420 PTR sys_clock_settime
421 PTR sys_clock_gettime
423 PTR sys_clock_nanosleep
424 PTR sys_tgkill /* 5225 */
427 PTR sys_ni_syscall /* sys_get_mempolicy */
428 PTR sys_ni_syscall /* sys_set_mempolicy */
429 PTR sys_mq_open /* 5230 */
432 PTR sys_mq_timedreceive
434 PTR sys_mq_getsetattr /* 5235 */
435 PTR sys_ni_syscall /* sys_vserver */
437 PTR sys_ni_syscall /* available, was setaltroot */
439 PTR sys_request_key /* 5240 */
441 PTR sys_set_thread_area
443 PTR sys_inotify_add_watch
444 PTR sys_inotify_rm_watch /* 5245 */
445 PTR sys_migrate_pages
449 PTR sys_fchownat /* 5250 */
454 PTR sys_linkat /* 5255 */
459 PTR sys_pselect6 /* 5260 */
463 PTR sys_sync_file_range
464 PTR sys_tee /* 5265 */