diff options
Diffstat (limited to 'arch/s390/kernel/entry.S')
| -rw-r--r-- | arch/s390/kernel/entry.S | 424 |
1 files changed, 212 insertions, 212 deletions
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 70203265196..398329b2b51 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -53,7 +53,7 @@ _PIF_WORK = (_PIF_PER_TRAP) .macro TRACE_IRQS_ON #ifdef CONFIG_TRACE_IRQFLAGS basr %r2,%r0 - l %r1,BASED(.Lhardirqs_on) + l %r1,BASED(.Lc_hardirqs_on) basr %r14,%r1 # call trace_hardirqs_on_caller #endif .endm @@ -61,7 +61,7 @@ _PIF_WORK = (_PIF_PER_TRAP) .macro TRACE_IRQS_OFF #ifdef CONFIG_TRACE_IRQFLAGS basr %r2,%r0 - l %r1,BASED(.Lhardirqs_off) + l %r1,BASED(.Lc_hardirqs_off) basr %r14,%r1 # call trace_hardirqs_off_caller #endif .endm @@ -70,7 +70,7 @@ _PIF_WORK = (_PIF_PER_TRAP) #ifdef CONFIG_LOCKDEP tm __PT_PSW+1(%r11),0x01 # returning to user ? jz .+10 - l %r1,BASED(.Llockdep_sys_exit) + l %r1,BASED(.Lc_lockdep_sys_exit) basr %r14,%r1 # call lockdep_sys_exit #endif .endm @@ -87,8 +87,8 @@ _PIF_WORK = (_PIF_PER_TRAP) tmh %r8,0x0001 # interrupting from user ? jnz 1f lr %r14,%r9 - sl %r14,BASED(.Lcritical_start) - cl %r14,BASED(.Lcritical_length) + sl %r14,BASED(.Lc_critical_start) + cl %r14,BASED(.Lc_critical_length) jhe 0f la %r11,\savearea # inside critical section, do cleanup bras %r14,cleanup_critical @@ -162,7 +162,7 @@ ENTRY(__switch_to) lm %r6,%r15,__SF_GPRS(%r15) # load gprs of next task br %r14 -__critical_start: +.L__critical_start: /* * SVC interrupt handler routine. System calls are synchronous events and * are executed with interrupts enabled. @@ -170,145 +170,145 @@ __critical_start: ENTRY(system_call) stpt __LC_SYNC_ENTER_TIMER -sysc_stm: +.Lsysc_stm: stm %r8,%r15,__LC_SAVE_AREA_SYNC l %r12,__LC_THREAD_INFO l %r13,__LC_SVC_NEW_PSW+4 lhi %r14,_PIF_SYSCALL -sysc_per: +.Lsysc_per: l %r15,__LC_KERNEL_STACK la %r11,STACK_FRAME_OVERHEAD(%r15) # pointer to pt_regs -sysc_vtime: +.Lsysc_vtime: UPDATE_VTIME %r8,%r9,__LC_SYNC_ENTER_TIMER stm %r0,%r7,__PT_R0(%r11) mvc __PT_R8(32,%r11),__LC_SAVE_AREA_SYNC mvc __PT_PSW(8,%r11),__LC_SVC_OLD_PSW mvc __PT_INT_CODE(4,%r11),__LC_SVC_ILC st %r14,__PT_FLAGS(%r11) -sysc_do_svc: +.Lsysc_do_svc: l %r10,__TI_sysc_table(%r12) # 31 bit system call table lh %r8,__PT_INT_CODE+2(%r11) sla %r8,2 # shift and test for svc0 - jnz sysc_nr_ok + jnz .Lsysc_nr_ok # svc 0: system call number in %r1 cl %r1,BASED(.Lnr_syscalls) - jnl sysc_nr_ok + jnl .Lsysc_nr_ok sth %r1,__PT_INT_CODE+2(%r11) lr %r8,%r1 sla %r8,2 -sysc_nr_ok: +.Lsysc_nr_ok: xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) st %r2,__PT_ORIG_GPR2(%r11) st %r7,STACK_FRAME_OVERHEAD(%r15) l %r9,0(%r8,%r10) # get system call addr. tm __TI_flags+3(%r12),_TIF_TRACE - jnz sysc_tracesys + jnz .Lsysc_tracesys basr %r14,%r9 # call sys_xxxx st %r2,__PT_R2(%r11) # store return value -sysc_return: +.Lsysc_return: LOCKDEP_SYS_EXIT -sysc_tif: +.Lsysc_tif: tm __PT_PSW+1(%r11),0x01 # returning to user ? - jno sysc_restore + jno .Lsysc_restore tm __PT_FLAGS+3(%r11),_PIF_WORK - jnz sysc_work + jnz .Lsysc_work tm __TI_flags+3(%r12),_TIF_WORK - jnz sysc_work # check for thread work + jnz .Lsysc_work # check for thread work tm __LC_CPU_FLAGS+3,_CIF_WORK - jnz sysc_work -sysc_restore: + jnz .Lsysc_work +.Lsysc_restore: mvc __LC_RETURN_PSW(8),__PT_PSW(%r11) stpt __LC_EXIT_TIMER lm %r0,%r15,__PT_R0(%r11) lpsw __LC_RETURN_PSW -sysc_done: +.Lsysc_done: # # One of the work bits is on. Find out which one. # -sysc_work: +.Lsysc_work: tm __LC_CPU_FLAGS+3,_CIF_MCCK_PENDING - jo sysc_mcck_pending + jo .Lsysc_mcck_pending tm __TI_flags+3(%r12),_TIF_NEED_RESCHED - jo sysc_reschedule + jo .Lsysc_reschedule tm __PT_FLAGS+3(%r11),_PIF_PER_TRAP - jo sysc_singlestep + jo .Lsysc_singlestep tm __TI_flags+3(%r12),_TIF_SIGPENDING - jo sysc_sigpending + jo .Lsysc_sigpending tm __TI_flags+3(%r12),_TIF_NOTIFY_RESUME - jo sysc_notify_resume + jo .Lsysc_notify_resume tm __LC_CPU_FLAGS+3,_CIF_ASCE - jo sysc_uaccess - j sysc_return # beware of critical section cleanup + jo .Lsysc_uaccess + j .Lsysc_return # beware of critical section cleanup # # _TIF_NEED_RESCHED is set, call schedule # -sysc_reschedule: - l %r1,BASED(.Lschedule) - la %r14,BASED(sysc_return) +.Lsysc_reschedule: + l %r1,BASED(.Lc_schedule) + la %r14,BASED(.Lsysc_return) br %r1 # call schedule # # _CIF_MCCK_PENDING is set, call handler # -sysc_mcck_pending: - l %r1,BASED(.Lhandle_mcck) - la %r14,BASED(sysc_return) +.Lsysc_mcck_pending: + l %r1,BASED(.Lc_handle_mcck) + la %r14,BASED(.Lsysc_return) br %r1 # TIF bit will be cleared by handler # # _CIF_ASCE is set, load user space asce # -sysc_uaccess: +.Lsysc_uaccess: ni __LC_CPU_FLAGS+3,255-_CIF_ASCE lctl %c1,%c1,__LC_USER_ASCE # load primary asce - j sysc_return + j .Lsysc_return # # _TIF_SIGPENDING is set, call do_signal # -sysc_sigpending: +.Lsysc_sigpending: lr %r2,%r11 # pass pointer to pt_regs - l %r1,BASED(.Ldo_signal) + l %r1,BASED(.Lc_do_signal) basr %r14,%r1 # call do_signal tm __PT_FLAGS+3(%r11),_PIF_SYSCALL - jno sysc_return + jno .Lsysc_return lm %r2,%r7,__PT_R2(%r11) # load svc arguments l %r10,__TI_sysc_table(%r12) # 31 bit system call table xr %r8,%r8 # svc 0 returns -ENOSYS clc __PT_INT_CODE+2(2,%r11),BASED(.Lnr_syscalls+2) - jnl sysc_nr_ok # invalid svc number -> do svc 0 + jnl .Lsysc_nr_ok # invalid svc number -> do svc 0 lh %r8,__PT_INT_CODE+2(%r11) # load new svc number sla %r8,2 - j sysc_nr_ok # restart svc + j .Lsysc_nr_ok # restart svc # # _TIF_NOTIFY_RESUME is set, call do_notify_resume # -sysc_notify_resume: +.Lsysc_notify_resume: lr %r2,%r11 # pass pointer to pt_regs - l %r1,BASED(.Ldo_notify_resume) - la %r14,BASED(sysc_return) + l %r1,BASED(.Lc_do_notify_resume) + la %r14,BASED(.Lsysc_return) br %r1 # call do_notify_resume # # _PIF_PER_TRAP is set, call do_per_trap # -sysc_singlestep: +.Lsysc_singlestep: ni __PT_FLAGS+3(%r11),255-_PIF_PER_TRAP lr %r2,%r11 # pass pointer to pt_regs - l %r1,BASED(.Ldo_per_trap) - la %r14,BASED(sysc_return) + l %r1,BASED(.Lc_do_per_trap) + la %r14,BASED(.Lsysc_return) br %r1 # call do_per_trap # # call tracehook_report_syscall_entry/tracehook_report_syscall_exit before # and after the system call # -sysc_tracesys: - l %r1,BASED(.Ltrace_enter) +.Lsysc_tracesys: + l %r1,BASED(.Lc_trace_enter) lr %r2,%r11 # pass pointer to pt_regs la %r3,0 xr %r0,%r0 @@ -316,22 +316,22 @@ sysc_tracesys: st %r0,__PT_R2(%r11) basr %r14,%r1 # call do_syscall_trace_enter cl %r2,BASED(.Lnr_syscalls) - jnl sysc_tracenogo + jnl .Lsysc_tracenogo lr %r8,%r2 sll %r8,2 l %r9,0(%r8,%r10) -sysc_tracego: +.Lsysc_tracego: lm %r3,%r7,__PT_R3(%r11) st %r7,STACK_FRAME_OVERHEAD(%r15) l %r2,__PT_ORIG_GPR2(%r11) basr %r14,%r9 # call sys_xxx st %r2,__PT_R2(%r11) # store return value -sysc_tracenogo: +.Lsysc_tracenogo: tm __TI_flags+3(%r12),_TIF_TRACE - jz sysc_return - l %r1,BASED(.Ltrace_exit) + jz .Lsysc_return + l %r1,BASED(.Lc_trace_exit) lr %r2,%r11 # pass pointer to pt_regs - la %r14,BASED(sysc_return) + la %r14,BASED(.Lsysc_return) br %r1 # call do_syscall_trace_exit # @@ -341,18 +341,18 @@ ENTRY(ret_from_fork) la %r11,STACK_FRAME_OVERHEAD(%r15) l %r12,__LC_THREAD_INFO l %r13,__LC_SVC_NEW_PSW+4 - l %r1,BASED(.Lschedule_tail) + l %r1,BASED(.Lc_schedule_tail) basr %r14,%r1 # call schedule_tail TRACE_IRQS_ON ssm __LC_SVC_NEW_PSW # reenable interrupts tm __PT_PSW+1(%r11),0x01 # forking a kernel thread ? - jne sysc_tracenogo + jne .Lsysc_tracenogo # it's a kernel thread lm %r9,%r10,__PT_R9(%r11) # load gprs ENTRY(kernel_thread_starter) la %r2,0(%r10) basr %r14,%r9 - j sysc_tracenogo + j .Lsysc_tracenogo /* * Program check handler routine @@ -369,7 +369,7 @@ ENTRY(pgm_check_handler) tmh %r8,0x4000 # PER bit set in old PSW ? jnz 0f # -> enabled, can't be a double fault tm __LC_PGM_ILC+3,0x80 # check for per exception - jnz pgm_svcper # -> single stepped svc + jnz .Lpgm_svcper # -> single stepped svc 0: CHECK_STACK STACK_SIZE,__LC_SAVE_AREA_SYNC ahi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE) j 2f @@ -386,42 +386,42 @@ ENTRY(pgm_check_handler) jz 0f l %r1,__TI_task(%r12) tmh %r8,0x0001 # kernel per event ? - jz pgm_kprobe + jz .Lpgm_kprobe oi __PT_FLAGS+3(%r11),_PIF_PER_TRAP mvc __THREAD_per_address(4,%r1),__LC_PER_ADDRESS mvc __THREAD_per_cause(2,%r1),__LC_PER_CODE mvc __THREAD_per_paid(1,%r1),__LC_PER_ACCESS_ID 0: REENABLE_IRQS xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) - l %r1,BASED(.Ljump_table) + l %r1,BASED(.Lc_jump_table) la %r10,0x7f n %r10,__PT_INT_CODE(%r11) - je sysc_return + je .Lsysc_return sll %r10,2 l %r1,0(%r10,%r1) # load address of handler routine lr %r2,%r11 # pass pointer to pt_regs basr %r14,%r1 # branch to interrupt-handler - j sysc_return + j .Lsysc_return # # PER event in supervisor state, must be kprobes # -pgm_kprobe: +.Lpgm_kprobe: REENABLE_IRQS xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) - l %r1,BASED(.Ldo_per_trap) + l %r1,BASED(.Lc_do_per_trap) lr %r2,%r11 # pass pointer to pt_regs basr %r14,%r1 # call do_per_trap - j sysc_return + j .Lsysc_return # # single stepped system call # -pgm_svcper: +.Lpgm_svcper: mvc __LC_RETURN_PSW(4),__LC_SVC_NEW_PSW - mvc __LC_RETURN_PSW+4(4),BASED(.Lsysc_per) + mvc __LC_RETURN_PSW+4(4),BASED(.Lc_sysc_per) lhi %r14,_PIF_SYSCALL | _PIF_PER_TRAP - lpsw __LC_RETURN_PSW # branch to sysc_per and enable irqs + lpsw __LC_RETURN_PSW # branch to .Lsysc_per and enable irqs /* * IO interrupt handler routine @@ -435,9 +435,9 @@ ENTRY(io_int_handler) l %r13,__LC_SVC_NEW_PSW+4 lm %r8,%r9,__LC_IO_OLD_PSW tmh %r8,0x0001 # interrupting from user ? - jz io_skip + jz .Lio_skip UPDATE_VTIME %r14,%r15,__LC_ASYNC_ENTER_TIMER -io_skip: +.Lio_skip: SWITCH_ASYNC __LC_SAVE_AREA_ASYNC,__LC_ASYNC_STACK,STACK_SHIFT stm %r0,%r7,__PT_R0(%r11) mvc __PT_R8(32,%r11),__LC_SAVE_AREA_ASYNC @@ -446,35 +446,35 @@ io_skip: xc __PT_FLAGS(4,%r11),__PT_FLAGS(%r11) TRACE_IRQS_OFF xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) -io_loop: - l %r1,BASED(.Ldo_IRQ) +.Lio_loop: + l %r1,BASED(.Lc_do_IRQ) lr %r2,%r11 # pass pointer to pt_regs lhi %r3,IO_INTERRUPT tm __PT_INT_CODE+8(%r11),0x80 # adapter interrupt ? - jz io_call + jz .Lio_call lhi %r3,THIN_INTERRUPT -io_call: +.Lio_call: basr %r14,%r1 # call do_IRQ tm __LC_MACHINE_FLAGS+2,0x10 # MACHINE_FLAG_LPAR - jz io_return + jz .Lio_return tpi 0 - jz io_return + jz .Lio_return mvc __PT_INT_CODE(12,%r11),__LC_SUBCHANNEL_ID - j io_loop -io_return: + j .Lio_loop +.Lio_return: LOCKDEP_SYS_EXIT TRACE_IRQS_ON -io_tif: +.Lio_tif: tm __TI_flags+3(%r12),_TIF_WORK - jnz io_work # there is work to do (signals etc.) + jnz .Lio_work # there is work to do (signals etc.) tm __LC_CPU_FLAGS+3,_CIF_WORK - jnz io_work -io_restore: + jnz .Lio_work +.Lio_restore: mvc __LC_RETURN_PSW(8),__PT_PSW(%r11) stpt __LC_EXIT_TIMER lm %r0,%r15,__PT_R0(%r11) lpsw __LC_RETURN_PSW -io_done: +.Lio_done: # # There is work todo, find out in which context we have been interrupted: @@ -483,15 +483,15 @@ io_done: # the preemption counter and if it is zero call preempt_schedule_irq # Before any work can be done, a switch to the kernel stack is required. # -io_work: +.Lio_work: tm __PT_PSW+1(%r11),0x01 # returning to user ? - jo io_work_user # yes -> do resched & signal + jo .Lio_work_user # yes -> do resched & signal #ifdef CONFIG_PREEMPT # check for preemptive scheduling icm %r0,15,__TI_precount(%r12) - jnz io_restore # preemption disabled + jnz .Lio_restore # preemption disabled tm __TI_flags+3(%r12),_TIF_NEED_RESCHED - jno io_restore + jno .Lio_restore # switch to kernel stack l %r1,__PT_R15(%r11) ahi %r1,-(STACK_FRAME_OVERHEAD + __PT_SIZE) @@ -499,20 +499,20 @@ io_work: xc __SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1) la %r11,STACK_FRAME_OVERHEAD(%r1) lr %r15,%r1 - # TRACE_IRQS_ON already done at io_return, call + # TRACE_IRQS_ON already done at .Lio_return, call # TRACE_IRQS_OFF to keep things symmetrical TRACE_IRQS_OFF - l %r1,BASED(.Lpreempt_irq) + l %r1,BASED(.Lc_preempt_irq) basr %r14,%r1 # call preempt_schedule_irq - j io_return + j .Lio_return #else - j io_restore + j .Lio_restore #endif # # Need to do work before returning to userspace, switch to kernel stack # -io_work_user: +.Lio_work_user: l %r1,__LC_KERNEL_STACK mvc STACK_FRAME_OVERHEAD(__PT_SIZE,%r1),0(%r11) xc __SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1) @@ -522,74 +522,74 @@ io_work_user: # # One of the work bits is on. Find out which one. # -io_work_tif: +.Lio_work_tif: tm __LC_CPU_FLAGS+3(%r12),_CIF_MCCK_PENDING - jo io_mcck_pending + jo .Lio_mcck_pending tm __TI_flags+3(%r12),_TIF_NEED_RESCHED - jo io_reschedule + jo .Lio_reschedule tm __TI_flags+3(%r12),_TIF_SIGPENDING - jo io_sigpending + jo .Lio_sigpending tm __TI_flags+3(%r12),_TIF_NOTIFY_RESUME - jo io_notify_resume + jo .Lio_notify_resume tm __LC_CPU_FLAGS+3,_CIF_ASCE - jo io_uaccess - j io_return # beware of critical section cleanup + jo .Lio_uaccess + j .Lio_return # beware of critical section cleanup # # _CIF_MCCK_PENDING is set, call handler # -io_mcck_pending: - # TRACE_IRQS_ON already done at io_return - l %r1,BASED(.Lhandle_mcck) +.Lio_mcck_pending: + # TRACE_IRQS_ON already done at .Lio_return + l %r1,BASED(.Lc_handle_mcck) basr %r14,%r1 # TIF bit will be cleared by handler TRACE_IRQS_OFF - j io_return + j .Lio_return # # _CIF_ASCE is set, load user space asce # -io_uaccess: +.Lio_uaccess: ni __LC_CPU_FLAGS+3,255-_CIF_ASCE lctl %c1,%c1,__LC_USER_ASCE # load primary asce - j io_return + j .Lio_return # # _TIF_NEED_RESCHED is set, call schedule # -io_reschedule: - # TRACE_IRQS_ON already done at io_return - l %r1,BASED(.Lschedule) +.Lio_reschedule: + # TRACE_IRQS_ON already done at .Lio_return + l %r1,BASED(.Lc_schedule) ssm __LC_SVC_NEW_PSW # reenable interrupts basr %r14,%r1 # call scheduler ssm __LC_PGM_NEW_PSW # disable I/O and ext. interrupts TRACE_IRQS_OFF - j io_return + j .Lio_return # # _TIF_SIGPENDING is set, call do_signal # -io_sigpending: - # TRACE_IRQS_ON already done at io_return - l %r1,BASED(.Ldo_signal) +.Lio_sigpending: + # TRACE_IRQS_ON already done at .Lio_return + l %r1,BASED(.Lc_do_signal) ssm __LC_SVC_NEW_PSW # reenable interrupts lr %r2,%r11 # pass pointer to pt_regs basr %r14,%r1 # call do_signal ssm __LC_PGM_NEW_PSW # disable I/O and ext. interrupts TRACE_IRQS_OFF - j io_return + j .Lio_return # # _TIF_SIGPENDING is set, call do_signal # -io_notify_resume: - # TRACE_IRQS_ON already done at io_return - l %r1,BASED(.Ldo_notify_resume) +.Lio_notify_resume: + # TRACE_IRQS_ON already done at .Lio_return + l %r1,BASED(.Lc_do_notify_resume) ssm __LC_SVC_NEW_PSW # reenable interrupts lr %r2,%r11 # pass pointer to pt_regs basr %r14,%r1 # call do_notify_resume ssm __LC_PGM_NEW_PSW # disable I/O and ext. interrupts TRACE_IRQS_OFF - j io_return + j .Lio_return /* * External interrupt handler routine @@ -603,9 +603,9 @@ ENTRY(ext_int_handler) l %r13,__LC_SVC_NEW_PSW+4 lm %r8,%r9,__LC_EXT_OLD_PSW tmh %r8,0x0001 # interrupting from user ? - jz ext_skip + jz .Lext_skip UPDATE_VTIME %r14,%r15,__LC_ASYNC_ENTER_TIMER -ext_skip: +.Lext_skip: SWITCH_ASYNC __LC_SAVE_AREA_ASYNC,__LC_ASYNC_STACK,STACK_SHIFT stm %r0,%r7,__PT_R0(%r11) mvc __PT_R8(32,%r11),__LC_SAVE_AREA_ASYNC @@ -614,29 +614,29 @@ ext_skip: mvc __PT_INT_PARM(4,%r11),__LC_EXT_PARAMS xc __PT_FLAGS(4,%r11),__PT_FLAGS(%r11) TRACE_IRQS_OFF - l %r1,BASED(.Ldo_IRQ) + l %r1,BASED(.Lc_do_IRQ) lr %r2,%r11 # pass pointer to pt_regs lhi %r3,EXT_INTERRUPT basr %r14,%r1 # call do_IRQ - j io_return + j .Lio_return /* - * Load idle PSW. The second "half" of this function is in cleanup_idle. + * Load idle PSW. The second "half" of this function is in .Lcleanup_idle. */ ENTRY(psw_idle) st %r3,__SF_EMPTY(%r15) basr %r1,0 - la %r1,psw_idle_lpsw+4-.(%r1) + la %r1,.Lpsw_idle_lpsw+4-.(%r1) st %r1,__SF_EMPTY+4(%r15) oi __SF_EMPTY+4(%r15),0x80 stck __CLOCK_IDLE_ENTER(%r2) stpt __TIMER_IDLE_ENTER(%r2) -psw_idle_lpsw: +.Lpsw_idle_lpsw: lpsw __SF_EMPTY(%r15) br %r14 -psw_idle_end: +.Lpsw_idle_end: -__critical_end: +.L__critical_end: /* * Machine check handler routines @@ -650,7 +650,7 @@ ENTRY(mcck_int_handler) l %r13,__LC_SVC_NEW_PSW+4 lm %r8,%r9,__LC_MCK_OLD_PSW tm __LC_MCCK_CODE,0x80 # system damage? - jo mcck_panic # yes -> rest of mcck code invalid + jo .Lmcck_panic # yes -> rest of mcck code invalid la %r14,__LC_CPU_TIMER_SAVE_AREA mvc __LC_MCCK_ENTER_TIMER(8),0(%r14) tm __LC_MCCK_CODE+5,0x02 # stored cpu timer value valid? @@ -668,22 +668,22 @@ ENTRY(mcck_int_handler) 2: spt 0(%r14) mvc __LC_MCCK_ENTER_TIMER(8),0(%r14) 3: tm __LC_MCCK_CODE+2,0x09 # mwp + ia of old psw valid? - jno mcck_panic # no -> skip cleanup critical + jno .Lmcck_panic # no -> skip cleanup critical tm %r8,0x0001 # interrupting from user ? - jz mcck_skip + jz .Lmcck_skip UPDATE_VTIME %r14,%r15,__LC_MCCK_ENTER_TIMER -mcck_skip: +.Lmcck_skip: SWITCH_ASYNC __LC_GPREGS_SAVE_AREA+32,__LC_PANIC_STACK,PAGE_SHIFT stm %r0,%r7,__PT_R0(%r11) mvc __PT_R8(32,%r11),__LC_GPREGS_SAVE_AREA+32 stm %r8,%r9,__PT_PSW(%r11) xc __PT_FLAGS(4,%r11),__PT_FLAGS(%r11) xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) - l %r1,BASED(.Ldo_machine_check) + l %r1,BASED(.Lc_do_machine_check) lr %r2,%r11 # pass pointer to pt_regs basr %r14,%r1 # call s390_do_machine_check tm __PT_PSW+1(%r11),0x01 # returning to user ? - jno mcck_return + jno .Lmcck_return l %r1,__LC_KERNEL_STACK # switch to kernel stack mvc STACK_FRAME_OVERHEAD(__PT_SIZE,%r1),0(%r11) xc __SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1) @@ -691,12 +691,12 @@ mcck_skip: lr %r15,%r1 ssm __LC_PGM_NEW_PSW # turn dat on, keep irqs off tm __LC_CPU_FLAGS+3,_CIF_MCCK_PENDING - jno mcck_return + jno .Lmcck_return TRACE_IRQS_OFF - l %r1,BASED(.Lhandle_mcck) + l %r1,BASED(.Lc_handle_mcck) basr %r14,%r1 # call s390_handle_mcck TRACE_IRQS_ON -mcck_return: +.Lmcck_return: mvc __LC_RETURN_MCCK_PSW(8),__PT_PSW(%r11) # move return PSW tm __LC_RETURN_MCCK_PSW+1,0x01 # returning to user ? jno 0f @@ -706,15 +706,15 @@ mcck_return: 0: lm %r0,%r15,__PT_R0(%r11) lpsw __LC_RETURN_MCCK_PSW -mcck_panic: +.Lmcck_panic: l %r14,__LC_PANIC_STACK slr %r14,%r15 sra %r14,PAGE_SHIFT jz 0f l %r15,__LC_PANIC_STACK - j mcck_skip + j .Lmcck_skip 0: ahi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE) - j mcck_skip + j .Lmcck_skip # # PSW restart interrupt handler @@ -764,58 +764,58 @@ stack_overflow: 1: .long kernel_stack_overflow #endif -cleanup_table: +.Lcleanup_table: .long system_call + 0x80000000 - .long sysc_do_svc + 0x80000000 - .long sysc_tif + 0x80000000 - .long sysc_restore + 0x80000000 - .long sysc_done + 0x80000000 - .long io_tif + 0x80000000 - .long io_restore + 0x80000000 - .long io_done + 0x80000000 + .long .Lsysc_do_svc + 0x80000000 + .long .Lsysc_tif + 0x80000000 + .long .Lsysc_restore + 0x80000000 + .long .Lsysc_done + 0x80000000 + .long .Lio_tif + 0x80000000 + .long .Lio_restore + 0x80000000 + .long .Lio_done + 0x80000000 .long psw_idle + 0x80000000 - .long psw_idle_end + 0x80000000 + .long .Lpsw_idle_end + 0x80000000 cleanup_critical: - cl %r9,BASED(cleanup_table) # system_call + cl %r9,BASED(.Lcleanup_table) # system_call jl 0f - cl %r9,BASED(cleanup_table+4) # sysc_do_svc - jl cleanup_system_call - cl %r9,BASED(cleanup_table+8) # sysc_tif + cl %r9,BASED(.Lcleanup_table+4) # .Lsysc_do_svc + jl .Lcleanup_system_call + cl %r9,BASED(.Lcleanup_table+8) # .Lsysc_tif jl 0f - cl %r9,BASED(cleanup_table+12) # sysc_restore - jl cleanup_sysc_tif - cl %r9,BASED(cleanup_table+16) # sysc_done - jl cleanup_sysc_restore - cl %r9,BASED(cleanup_table+20) # io_tif + cl %r9,BASED(.Lcleanup_table+12) # .Lsysc_restore + jl .Lcleanup_sysc_tif + cl %r9,BASED(.Lcleanup_table+16) # .Lsysc_done + jl .Lcleanup_sysc_restore + cl %r9,BASED(.Lcleanup_table+20) # .Lio_tif jl 0f - cl %r9,BASED(cleanup_table+24) # io_restore - jl cleanup_io_tif - cl %r9,BASED(cleanup_table+28) # io_done - jl cleanup_io_restore - cl %r9,BASED(cleanup_table+32) # psw_idle + cl %r9,BASED(.Lcleanup_table+24) # .Lio_restore + jl .Lcleanup_io_tif + cl %r9,BASED(.Lcleanup_table+28) # .Lio_done + jl .Lcleanup_io_restore + cl %r9,BASED(.Lcleanup_table+32) # psw_idle jl 0f - cl %r9,BASED(cleanup_table+36) # psw_idle_end - jl cleanup_idle + cl %r9,BASED(.Lcleanup_table+36) # .Lpsw_idle_end + jl .Lcleanup_idle 0: br %r14 -cleanup_system_call: +.Lcleanup_system_call: # check if stpt has been executed - cl %r9,BASED(cleanup_system_call_insn) + cl %r9,BASED(.Lcleanup_system_call_insn) jh 0f mvc __LC_SYNC_ENTER_TIMER(8),__LC_ASYNC_ENTER_TIMER chi %r11,__LC_SAVE_AREA_ASYNC je 0f mvc __LC_SYNC_ENTER_TIMER(8),__LC_MCCK_ENTER_TIMER 0: # check if stm has been executed - cl %r9,BASED(cleanup_system_call_insn+4) + cl %r9,BASED(.Lcleanup_system_call_insn+4) jh 0f mvc __LC_SAVE_AREA_SYNC(32),0(%r11) 0: # set up saved registers r12, and r13 st %r12,16(%r11) # r12 thread-info pointer st %r13,20(%r11) # r13 literal-pool pointer # check if the user time calculation has been done - cl %r9,BASED(cleanup_system_call_insn+8) + cl %r9,BASED(.Lcleanup_system_call_insn+8) jh 0f l %r10,__LC_EXIT_TIMER l %r15,__LC_EXIT_TIMER+4 @@ -824,7 +824,7 @@ cleanup_system_call: st %r10,__LC_USER_TIMER st %r15,__LC_USER_TIMER+4 0: # check if the system time calculation has been done - cl %r9,BASED(cleanup_system_call_insn+12) + cl %r9,BASED(.Lcleanup_system_call_insn+12) jh 0f l %r10,__LC_LAST_UPDATE_TIMER l %r15,__LC_LAST_UPDATE_TIMER+4 @@ -848,20 +848,20 @@ cleanup_system_call: # setup saved register 15 st %r15,28(%r11) # r15 stack pointer # set new psw address and exit - l %r9,BASED(cleanup_table+4) # sysc_do_svc + 0x80000000 + l %r9,BASED(.Lcleanup_table+4) # .Lsysc_do_svc + 0x80000000 br %r14 -cleanup_system_call_insn: +.Lcleanup_system_call_insn: .long system_call + 0x80000000 - .long sysc_stm + 0x80000000 - .long sysc_vtime + 0x80000000 + 36 - .long sysc_vtime + 0x80000000 + 76 + .long .Lsysc_stm + 0x80000000 + .long .Lsysc_vtime + 0x80000000 + 36 + .long .Lsysc_vtime + 0x80000000 + 76 -cleanup_sysc_tif: - l %r9,BASED(cleanup_table+8) # sysc_tif + 0x80000000 +.Lcleanup_sysc_tif: + l %r9,BASED(.Lcleanup_table+8) # .Lsysc_tif + 0x80000000 br %r14 -cleanup_sysc_restore: - cl %r9,BASED(cleanup_sysc_restore_insn) +.Lcleanup_sysc_restore: + cl %r9,BASED(.Lcleanup_sysc_restore_insn) jhe 0f l %r9,12(%r11) # get saved pointer to pt_regs mvc __LC_RETURN_PSW(8),__PT_PSW(%r9) @@ -869,15 +869,15 @@ cleanup_sysc_restore: lm %r0,%r7,__PT_R0(%r9) 0: lm %r8,%r9,__LC_RETURN_PSW br %r14 -cleanup_sysc_restore_insn: - .long sysc_done - 4 + 0x80000000 +.Lcleanup_sysc_restore_insn: + .long .Lsysc_done - 4 + 0x80000000 -cleanup_io_tif: - l %r9,BASED(cleanup_table+20) # io_tif + 0x80000000 +.Lcleanup_io_tif: + l %r9,BASED(.Lcleanup_table+20) # .Lio_tif + 0x80000000 br %r14 -cleanup_io_restore: - cl %r9,BASED(cleanup_io_restore_insn) +.Lcleanup_io_restore: + cl %r9,BASED(.Lcleanup_io_restore_insn) jhe 0f l %r9,12(%r11) # get saved r11 pointer to pt_regs mvc __LC_RETURN_PSW(8),__PT_PSW(%r9) @@ -885,10 +885,10 @@ cleanup_io_restore: lm %r0,%r7,__PT_R0(%r9) 0: lm %r8,%r9,__LC_RETURN_PSW br %r14 -cleanup_io_restore_insn: - .long io_done - 4 + 0x80000000 +.Lcleanup_io_restore_insn: + .long .Lio_done - 4 + 0x80000000 -cleanup_idle: +.Lcleanup_idle: # copy interrupt clock & cpu timer mvc __CLOCK_IDLE_EXIT(8,%r2),__LC_INT_CLOCK mvc __TIMER_IDLE_EXIT(8,%r2),__LC_ASYNC_ENTER_TIMER @@ -897,7 +897,7 @@ cleanup_idle: mvc __CLOCK_IDLE_EXIT(8,%r2),__LC_MCCK_CLOCK mvc __TIMER_IDLE_EXIT(8,%r2),__LC_MCCK_ENTER_TIMER 0: # check if stck has been executed - cl %r9,BASED(cleanup_idle_insn) + cl %r9,BASED(.Lcleanup_idle_insn) jhe 1f mvc __CLOCK_IDLE_ENTER(8,%r2),__CLOCK_IDLE_EXIT(%r2) mvc __TIMER_IDLE_ENTER(8,%r2),__TIMER_IDLE_EXIT(%r3) @@ -913,12 +913,12 @@ cleanup_idle: stm %r9,%r10,__LC_SYSTEM_TIMER mvc __LC_LAST_UPDATE_TIMER(8),__TIMER_IDLE_EXIT(%r2) # prepare return psw - n %r8,BASED(cleanup_idle_wait) # clear irq & wait state bits + n %r8,BASED(.Lcleanup_idle_wait) # clear irq & wait state bits l %r9,24(%r11) # return from psw_idle br %r14 -cleanup_idle_insn: - .long psw_idle_lpsw + 0x80000000 -cleanup_idle_wait: +.Lcleanup_idle_insn: + .long .Lpsw_idle_lpsw + 0x80000000 +.Lcleanup_idle_wait: .long 0xfcfdffff /* @@ -933,30 +933,30 @@ cleanup_idle_wait: /* * Symbol constants */ -.Ldo_machine_check: .long s390_do_machine_check -.Lhandle_mcck: .long s390_handle_mcck -.Ldo_IRQ: .long do_IRQ -.Ldo_signal: .long do_signal -.Ldo_notify_resume: .long do_notify_resume -.Ldo_per_trap: .long do_per_trap -.Ljump_table: .long pgm_check_table -.Lschedule: .long schedule +.Lc_do_machine_check: .long s390_do_machine_check +.Lc_handle_mcck: .long s390_handle_mcck +.Lc_do_IRQ: .long do_IRQ +.Lc_do_signal: .long do_signal +.Lc_do_notify_resume: .long do_notify_resume +.Lc_do_per_trap: .long do_per_trap +.Lc_jump_table: .long pgm_check_table +.Lc_schedule: .long schedule #ifdef CONFIG_PREEMPT -.Lpreempt_irq: .long preempt_schedule_irq +.Lc_preempt_irq: .long preempt_schedule_irq #endif -.Ltrace_enter: .long do_syscall_trace_enter -.Ltrace_exit: .long do_syscall_trace_exit -.Lschedule_tail: .long schedule_tail -.Lsysc_per: .long sysc_per + 0x80000000 +.Lc_trace_enter: .long do_syscall_trace_enter +.Lc_trace_exit: .long do_syscall_trace_exit +.Lc_schedule_tail: .long schedule_tail +.Lc_sysc_per: .long .Lsysc_per + 0x80000000 #ifdef CONFIG_TRACE_IRQFLAGS -.Lhardirqs_on: .long trace_hardirqs_on_caller -.Lhardirqs_off: .long trace_hardirqs_off_caller +.Lc_hardirqs_on: .long trace_hardirqs_on_caller +.Lc_hardirqs_off: .long trace_hardirqs_off_caller #endif #ifdef CONFIG_LOCKDEP -.Llockdep_sys_exit: .long lockdep_sys_exit +.Lc_lockdep_sys_exit: .long lockdep_sys_exit #endif -.Lcritical_start: .long __critical_start + 0x80000000 -.Lcritical_length: .long __critical_end - __critical_start +.Lc_critical_start: .long .L__critical_start + 0x80000000 +.Lc_critical_length: .long .L__critical_end - .L__critical_start .section .rodata, "a" #define SYSCALL(esa,esame,emu) .long esa |