* for 68040
*/
-#include <linux/config.h>
#include <linux/linkage.h>
#include <asm/entry.h>
#include <asm/errno.h>
#include <asm/asm-offsets.h>
.globl system_call, buserr, trap, resume
-.globl inthandler, sys_call_table
+.globl sys_call_table
.globl sys_fork, sys_clone, sys_vfork
.globl ret_from_interrupt, bad_interrupt
+.globl auto_irqhandler_fixup
+.globl user_irqvec_fixup, user_irqhandler_fixup
.text
ENTRY(buserr)
jra .Lret_from_exception
do_trace_entry:
- movel #-ENOSYS,%sp@(PT_D0) | needed for strace
+ movel #-ENOSYS,%sp@(PT_OFF_D0)| needed for strace
subql #4,%sp
SAVE_SWITCH_STACK
jbsr syscall_trace
RESTORE_SWITCH_STACK
addql #4,%sp
- movel %sp@(PT_ORIG_D0),%d0
+ movel %sp@(PT_OFF_ORIG_D0),%d0
cmpl #NR_syscalls,%d0
jcs syscall
badsys:
- movel #-ENOSYS,%sp@(PT_D0)
+ movel #-ENOSYS,%sp@(PT_OFF_D0)
jra ret_from_syscall
do_trace_exit:
addql #4,%sp
/* on 68040 complete pending writebacks if any */
#ifdef CONFIG_M68040
- bfextu %sp@(PT_VECTOR){#0,#4},%d0
+ bfextu %sp@(PT_OFF_FORMATVEC){#0,#4},%d0
subql #7,%d0 | bus error frame ?
jbne 1f
movel %sp,%sp@-
jcc badsys
syscall:
jbsr @(sys_call_table,%d0:l:4)@(0)
- movel %d0,%sp@(PT_D0) | save the return value
+ movel %d0,%sp@(PT_OFF_D0) | save the return value
ret_from_syscall:
|oriw #0x0700,%sr
movew %curptr@(TASK_INFO+TINFO_FLAGS+2),%d0
1: RESTORE_ALL
syscall_exit_work:
- btst #5,%sp@(PT_SR) | check if returning to kernel
+ btst #5,%sp@(PT_OFF_SR) | check if returning to kernel
bnes 1b | if so, skip resched, signals
lslw #1,%d0
jcs do_trace_exit
ENTRY(ret_from_exception)
.Lret_from_exception:
- btst #5,%sp@(PT_SR) | check if returning to kernel
+ btst #5,%sp@(PT_OFF_SR) | check if returning to kernel
bnes 1f | if so, skip resched, signals
| only allow interrupts when we are really the last one on the
| kernel stack, otherwise stack overflow can occur during
addql #8,%sp
RESTORE_SWITCH_STACK
addql #4,%sp
- jbra resume_userspace
+ tstl %d0
+ jeq resume_userspace
+ | when single stepping into handler stop at the first insn
+ btst #6,%curptr@(TASK_INFO+TINFO_FLAGS+2)
+ jeq resume_userspace
do_delayed_trace:
- bclr #7,%sp@(PT_SR) | clear trace bit in SR
+ bclr #7,%sp@(PT_OFF_SR) | clear trace bit in SR
pea 1 | send SIGTRAP
movel %curptr,%sp@-
pea LSIGTRAP
jbra resume_userspace
-#if 0
-#ifdef CONFIG_AMIGA
-ami_inthandler:
- addql #1,irq_stat+CPUSTAT_LOCAL_IRQ_COUNT
- SAVE_ALL_INT
- GET_CURRENT(%d0)
+/* This is the main interrupt handler for autovector interrupts */
- bfextu %sp@(PT_VECTOR){#4,#12},%d0
- movel %d0,%a0
- addql #1,%a0@(kstat+STAT_IRQ-VECOFF(VEC_SPUR))
- movel %a0@(autoirq_list-VECOFF(VEC_SPUR)),%a0
-
-| amiga vector int handler get the req mask instead of irq vector
- lea CUSTOMBASE,%a1
- movew %a1@(C_INTREQR),%d0
- andw %a1@(C_INTENAR),%d0
-
-| prepare stack (push frame pointer, dev_id & req mask)
- pea %sp@
- movel %a0@(IRQ_DEVID),%sp@-
- movel %d0,%sp@-
- pea %pc@(ret_from_interrupt:w)
- jbra @(IRQ_HANDLER,%a0)@(0)
-
-ENTRY(nmi_handler)
- rte
-#endif
-#endif
-
-/*
-** This is the main interrupt handler, responsible for calling process_int()
-*/
-inthandler:
+ENTRY(auto_inthandler)
SAVE_ALL_INT
GET_CURRENT(%d0)
addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
| put exception # in d0
- bfextu %sp@(PT_VECTOR){#4,#10},%d0
+ bfextu %sp@(PT_OFF_FORMATVEC){#4,#10},%d0
+ subw #VEC_SPUR,%d0
movel %sp,%sp@-
movel %d0,%sp@- | put vector # on stack
-#if defined(MACH_Q40_ONLY) && defined(CONFIG_BLK_DEV_FD)
- btstb #4,0xff000000 | Q40 floppy needs very special treatment ...
- jbeq 1f
- btstb #3,0xff000004
- jbeq 1f
- jbsr floppy_hardint
- jbra 3f
-1:
-#endif
- jbsr process_int | process the IRQ
-3: addql #8,%sp | pop parameters off stack
+auto_irqhandler_fixup = . + 2
+ jsr __m68k_handle_int | process the IRQ
+ addql #8,%sp | pop parameters off stack
ret_from_interrupt:
subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
- jeq 1f
-2:
- RESTORE_ALL
-1:
+ jeq ret_from_last_interrupt
+2: RESTORE_ALL
+
+ ALIGN
+ret_from_last_interrupt:
moveq #(~ALLOWINT>>8)&0xff,%d0
- andb %sp@(PT_SR),%d0
+ andb %sp@(PT_OFF_SR),%d0
jne 2b
/* check if we need to do software interrupts */
pea ret_from_exception
jra do_softirq
+/* Handler for user defined interrupt vectors */
+
+ENTRY(user_inthandler)
+ SAVE_ALL_INT
+ GET_CURRENT(%d0)
+ addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
+ | put exception # in d0
+ bfextu %sp@(PT_OFF_FORMATVEC){#4,#10},%d0
+user_irqvec_fixup = . + 2
+ subw #VEC_USER,%d0
+
+ movel %sp,%sp@-
+ movel %d0,%sp@- | put vector # on stack
+user_irqhandler_fixup = . + 2
+ jsr __m68k_handle_int | process the IRQ
+ addql #8,%sp | pop parameters off stack
+
+ subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
+ jeq ret_from_last_interrupt
+ RESTORE_ALL
/* Handler for uninitialized and spurious interrupts */
-bad_interrupt:
- addql #1,num_spurious
- rte
+ENTRY(bad_inthandler)
+ SAVE_ALL_INT
+ GET_CURRENT(%d0)
+ addqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
+
+ movel %sp,%sp@-
+ jsr handle_badint
+ addql #4,%sp
+
+ subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
+ jeq ret_from_last_interrupt
+ RESTORE_ALL
+
ENTRY(sys_fork)
SAVE_SWITCH_STACK
.data
ALIGN
sys_call_table:
- .long sys_ni_syscall /* 0 - old "setup()" system call*/
+ .long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */
.long sys_exit
.long sys_fork
.long sys_read
.long sys_settimeofday
.long sys_getgroups16 /* 80 */
.long sys_setgroups16
- .long old_select
+ .long sys_old_select
.long sys_symlink
.long sys_lstat
.long sys_readlink /* 85 */
.long sys_uselib
.long sys_swapon
.long sys_reboot
- .long old_readdir
- .long old_mmap /* 90 */
+ .long sys_old_readdir
+ .long sys_old_mmap /* 90 */
.long sys_munmap
.long sys_truncate
.long sys_ftruncate
.long sys_tgkill /* 265 */
.long sys_utimes
.long sys_fadvise64_64
- .long sys_mbind
+ .long sys_mbind
.long sys_get_mempolicy
.long sys_set_mempolicy /* 270 */
.long sys_mq_open
.long sys_add_key
.long sys_request_key /* 280 */
.long sys_keyctl
+ .long sys_ioprio_set
+ .long sys_ioprio_get
+ .long sys_inotify_init
+ .long sys_inotify_add_watch /* 285 */
+ .long sys_inotify_rm_watch
+ .long sys_migrate_pages
+ .long sys_openat
+ .long sys_mkdirat
+ .long sys_mknodat /* 290 */
+ .long sys_fchownat
+ .long sys_futimesat
+ .long sys_fstatat64
+ .long sys_unlinkat
+ .long sys_renameat /* 295 */
+ .long sys_linkat
+ .long sys_symlinkat
+ .long sys_readlinkat
+ .long sys_fchmodat
+ .long sys_faccessat /* 300 */
+ .long sys_ni_syscall /* Reserved for pselect6 */
+ .long sys_ni_syscall /* Reserved for ppoll */
+ .long sys_unshare
+ .long sys_set_robust_list
+ .long sys_get_robust_list /* 305 */
+ .long sys_splice
+ .long sys_sync_file_range
+ .long sys_tee
+ .long sys_vmsplice
+ .long sys_move_pages /* 310 */
+ .long sys_sched_setaffinity
+ .long sys_sched_getaffinity
+ .long sys_kexec_load
+ .long sys_getcpu
+ .long sys_epoll_pwait /* 315 */
+ .long sys_utimensat
+ .long sys_signalfd
+ .long sys_timerfd_create
+ .long sys_eventfd
+ .long sys_fallocate /* 320 */
+ .long sys_timerfd_settime
+ .long sys_timerfd_gettime
+ .long sys_signalfd4
+ .long sys_eventfd2
+ .long sys_epoll_create1 /* 325 */
+ .long sys_dup3
+ .long sys_pipe2
+ .long sys_inotify_init1
+ .long sys_preadv
+ .long sys_pwritev /* 330 */
+ .long sys_rt_tgsigqueueinfo
+ .long sys_perf_event_open
+ .long sys_get_thread_area
+ .long sys_set_thread_area
+ .long sys_atomic_cmpxchg_32 /* 335 */
+ .long sys_atomic_barrier
Code Review / linux-2.6.git / blobdiff