s390: use local symbol names in entry[64].S (86ed42f4) · Commits · e / devices / android_kernel_samsung_universal8895

arch/s390/kernel/entry.S

+212 −212

Original line number	Original line	Diff line number	Diff line
	@@ -53,7 +53,7 @@ _PIF_WORK = (_PIF_PER_TRAP)
	.macro TRACE_IRQS_ON		.macro TRACE_IRQS_ON
	#ifdef CONFIG_TRACE_IRQFLAGS		#ifdef CONFIG_TRACE_IRQFLAGS
	basr %r2,%r0		basr %r2,%r0
	l %r1,BASED(.Lhardirqs_on)		l %r1,BASED(.Lc_hardirqs_on)
	basr %r14,%r1 # call trace_hardirqs_on_caller		basr %r14,%r1 # call trace_hardirqs_on_caller
	#endif		#endif
	.endm		.endm
	@@ -61,7 +61,7 @@ _PIF_WORK = (_PIF_PER_TRAP)
	.macro TRACE_IRQS_OFF		.macro TRACE_IRQS_OFF
	#ifdef CONFIG_TRACE_IRQFLAGS		#ifdef CONFIG_TRACE_IRQFLAGS
	basr %r2,%r0		basr %r2,%r0
	l %r1,BASED(.Lhardirqs_off)		l %r1,BASED(.Lc_hardirqs_off)
	basr %r14,%r1 # call trace_hardirqs_off_caller		basr %r14,%r1 # call trace_hardirqs_off_caller
	#endif		#endif
	.endm		.endm
	@@ -70,7 +70,7 @@ _PIF_WORK = (_PIF_PER_TRAP)
	#ifdef CONFIG_LOCKDEP		#ifdef CONFIG_LOCKDEP
	tm __PT_PSW+1(%r11),0x01 # returning to user ?		tm __PT_PSW+1(%r11),0x01 # returning to user ?
	jz .+10		jz .+10
	l %r1,BASED(.Llockdep_sys_exit)		l %r1,BASED(.Lc_lockdep_sys_exit)
	basr %r14,%r1 # call lockdep_sys_exit		basr %r14,%r1 # call lockdep_sys_exit
	#endif		#endif
	.endm		.endm
	@@ -87,8 +87,8 @@ _PIF_WORK = (_PIF_PER_TRAP)
	tmh %r8,0x0001 # interrupting from user ?		tmh %r8,0x0001 # interrupting from user ?
	jnz 1f		jnz 1f
	lr %r14,%r9		lr %r14,%r9
	sl %r14,BASED(.Lcritical_start)		sl %r14,BASED(.Lc_critical_start)
	cl %r14,BASED(.Lcritical_length)		cl %r14,BASED(.Lc_critical_length)
	jhe 0f		jhe 0f
	la %r11,\savearea # inside critical section, do cleanup		la %r11,\savearea # inside critical section, do cleanup
	bras %r14,cleanup_critical		bras %r14,cleanup_critical
	@@ -162,7 +162,7 @@ ENTRY(__switch_to)
	lm %r6,%r15,__SF_GPRS(%r15) # load gprs of next task		lm %r6,%r15,__SF_GPRS(%r15) # load gprs of next task
	br %r14		br %r14

	__critical_start:		.L__critical_start:
	/*		/*
	* SVC interrupt handler routine. System calls are synchronous events and		* SVC interrupt handler routine. System calls are synchronous events and
	* are executed with interrupts enabled.		* are executed with interrupts enabled.
	@@ -170,145 +170,145 @@ __critical_start:

	ENTRY(system_call)		ENTRY(system_call)
	stpt __LC_SYNC_ENTER_TIMER		stpt __LC_SYNC_ENTER_TIMER
	sysc_stm:		.Lsysc_stm:
	stm %r8,%r15,__LC_SAVE_AREA_SYNC		stm %r8,%r15,__LC_SAVE_AREA_SYNC
	l %r12,__LC_THREAD_INFO		l %r12,__LC_THREAD_INFO
	l %r13,__LC_SVC_NEW_PSW+4		l %r13,__LC_SVC_NEW_PSW+4
	lhi %r14,_PIF_SYSCALL		lhi %r14,_PIF_SYSCALL
	sysc_per:		.Lsysc_per:
	l %r15,__LC_KERNEL_STACK		l %r15,__LC_KERNEL_STACK
	la %r11,STACK_FRAME_OVERHEAD(%r15) # pointer to pt_regs		la %r11,STACK_FRAME_OVERHEAD(%r15) # pointer to pt_regs
	sysc_vtime:		.Lsysc_vtime:
	UPDATE_VTIME %r8,%r9,__LC_SYNC_ENTER_TIMER		UPDATE_VTIME %r8,%r9,__LC_SYNC_ENTER_TIMER
	stm %r0,%r7,__PT_R0(%r11)		stm %r0,%r7,__PT_R0(%r11)
	mvc __PT_R8(32,%r11),__LC_SAVE_AREA_SYNC		mvc __PT_R8(32,%r11),__LC_SAVE_AREA_SYNC
	mvc __PT_PSW(8,%r11),__LC_SVC_OLD_PSW		mvc __PT_PSW(8,%r11),__LC_SVC_OLD_PSW
	mvc __PT_INT_CODE(4,%r11),__LC_SVC_ILC		mvc __PT_INT_CODE(4,%r11),__LC_SVC_ILC
	st %r14,__PT_FLAGS(%r11)		st %r14,__PT_FLAGS(%r11)
	sysc_do_svc:		.Lsysc_do_svc:
	l %r10,__TI_sysc_table(%r12) # 31 bit system call table		l %r10,__TI_sysc_table(%r12) # 31 bit system call table
	lh %r8,__PT_INT_CODE+2(%r11)		lh %r8,__PT_INT_CODE+2(%r11)
	sla %r8,2 # shift and test for svc0		sla %r8,2 # shift and test for svc0
	jnz sysc_nr_ok		jnz .Lsysc_nr_ok
	# svc 0: system call number in %r1		# svc 0: system call number in %r1
	cl %r1,BASED(.Lnr_syscalls)		cl %r1,BASED(.Lnr_syscalls)
	jnl sysc_nr_ok		jnl .Lsysc_nr_ok
	sth %r1,__PT_INT_CODE+2(%r11)		sth %r1,__PT_INT_CODE+2(%r11)
	lr %r8,%r1		lr %r8,%r1
	sla %r8,2		sla %r8,2
	sysc_nr_ok:		.Lsysc_nr_ok:
	xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)		xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)
	st %r2,__PT_ORIG_GPR2(%r11)		st %r2,__PT_ORIG_GPR2(%r11)
	st %r7,STACK_FRAME_OVERHEAD(%r15)		st %r7,STACK_FRAME_OVERHEAD(%r15)
	l %r9,0(%r8,%r10) # get system call addr.		l %r9,0(%r8,%r10) # get system call addr.
	tm __TI_flags+3(%r12),_TIF_TRACE		tm __TI_flags+3(%r12),_TIF_TRACE
	jnz sysc_tracesys		jnz .Lsysc_tracesys
	basr %r14,%r9 # call sys_xxxx		basr %r14,%r9 # call sys_xxxx
	st %r2,__PT_R2(%r11) # store return value		st %r2,__PT_R2(%r11) # store return value

	sysc_return:		.Lsysc_return:
	LOCKDEP_SYS_EXIT		LOCKDEP_SYS_EXIT
	sysc_tif:		.Lsysc_tif:
	tm __PT_PSW+1(%r11),0x01 # returning to user ?		tm __PT_PSW+1(%r11),0x01 # returning to user ?
	jno sysc_restore		jno .Lsysc_restore
	tm __PT_FLAGS+3(%r11),_PIF_WORK		tm __PT_FLAGS+3(%r11),_PIF_WORK
	jnz sysc_work		jnz .Lsysc_work
	tm __TI_flags+3(%r12),_TIF_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		tm __LC_CPU_FLAGS+3,_CIF_WORK
	jnz sysc_work		jnz .Lsysc_work
	sysc_restore:		.Lsysc_restore:
	mvc __LC_RETURN_PSW(8),__PT_PSW(%r11)		mvc __LC_RETURN_PSW(8),__PT_PSW(%r11)
	stpt __LC_EXIT_TIMER		stpt __LC_EXIT_TIMER
	lm %r0,%r15,__PT_R0(%r11)		lm %r0,%r15,__PT_R0(%r11)
	lpsw __LC_RETURN_PSW		lpsw __LC_RETURN_PSW
	sysc_done:		.Lsysc_done:

	#		#
	# One of the work bits is on. Find out which one.		# One of the work bits is on. Find out which one.
	#		#
	sysc_work:		.Lsysc_work:
	tm __LC_CPU_FLAGS+3,_CIF_MCCK_PENDING		tm __LC_CPU_FLAGS+3,_CIF_MCCK_PENDING
	jo sysc_mcck_pending		jo .Lsysc_mcck_pending
	tm __TI_flags+3(%r12),_TIF_NEED_RESCHED		tm __TI_flags+3(%r12),_TIF_NEED_RESCHED
	jo sysc_reschedule		jo .Lsysc_reschedule
	tm __PT_FLAGS+3(%r11),_PIF_PER_TRAP		tm __PT_FLAGS+3(%r11),_PIF_PER_TRAP
	jo sysc_singlestep		jo .Lsysc_singlestep
	tm __TI_flags+3(%r12),_TIF_SIGPENDING		tm __TI_flags+3(%r12),_TIF_SIGPENDING
	jo sysc_sigpending		jo .Lsysc_sigpending
	tm __TI_flags+3(%r12),_TIF_NOTIFY_RESUME		tm __TI_flags+3(%r12),_TIF_NOTIFY_RESUME
	jo sysc_notify_resume		jo .Lsysc_notify_resume
	tm __LC_CPU_FLAGS+3,_CIF_ASCE		tm __LC_CPU_FLAGS+3,_CIF_ASCE
	jo sysc_uaccess		jo .Lsysc_uaccess
	j sysc_return # beware of critical section cleanup		j .Lsysc_return # beware of critical section cleanup

	#		#
	# _TIF_NEED_RESCHED is set, call schedule		# _TIF_NEED_RESCHED is set, call schedule
	#		#
	sysc_reschedule:		.Lsysc_reschedule:
	l %r1,BASED(.Lschedule)		l %r1,BASED(.Lc_schedule)
	la %r14,BASED(sysc_return)		la %r14,BASED(.Lsysc_return)
	br %r1 # call schedule		br %r1 # call schedule

	#		#
	# _CIF_MCCK_PENDING is set, call handler		# _CIF_MCCK_PENDING is set, call handler
	#		#
	sysc_mcck_pending:		.Lsysc_mcck_pending:
	l %r1,BASED(.Lhandle_mcck)		l %r1,BASED(.Lc_handle_mcck)
	la %r14,BASED(sysc_return)		la %r14,BASED(.Lsysc_return)
	br %r1 # TIF bit will be cleared by handler		br %r1 # TIF bit will be cleared by handler

	#		#
	# _CIF_ASCE is set, load user space asce		# _CIF_ASCE is set, load user space asce
	#		#
	sysc_uaccess:		.Lsysc_uaccess:
	ni __LC_CPU_FLAGS+3,255-_CIF_ASCE		ni __LC_CPU_FLAGS+3,255-_CIF_ASCE
	lctl %c1,%c1,__LC_USER_ASCE # load primary asce		lctl %c1,%c1,__LC_USER_ASCE # load primary asce
	j sysc_return		j .Lsysc_return

	#		#
	# _TIF_SIGPENDING is set, call do_signal		# _TIF_SIGPENDING is set, call do_signal
	#		#
	sysc_sigpending:		.Lsysc_sigpending:
	lr %r2,%r11 # pass pointer to pt_regs		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		basr %r14,%r1 # call do_signal
	tm __PT_FLAGS+3(%r11),_PIF_SYSCALL		tm __PT_FLAGS+3(%r11),_PIF_SYSCALL
	jno sysc_return		jno .Lsysc_return
	lm %r2,%r7,__PT_R2(%r11) # load svc arguments		lm %r2,%r7,__PT_R2(%r11) # load svc arguments
	l %r10,__TI_sysc_table(%r12) # 31 bit system call table		l %r10,__TI_sysc_table(%r12) # 31 bit system call table
	xr %r8,%r8 # svc 0 returns -ENOSYS		xr %r8,%r8 # svc 0 returns -ENOSYS
	clc __PT_INT_CODE+2(2,%r11),BASED(.Lnr_syscalls+2)		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		lh %r8,__PT_INT_CODE+2(%r11) # load new svc number
	sla %r8,2		sla %r8,2
	j sysc_nr_ok # restart svc		j .Lsysc_nr_ok # restart svc

	#		#
	# _TIF_NOTIFY_RESUME is set, call do_notify_resume		# _TIF_NOTIFY_RESUME is set, call do_notify_resume
	#		#
	sysc_notify_resume:		.Lsysc_notify_resume:
	lr %r2,%r11 # pass pointer to pt_regs		lr %r2,%r11 # pass pointer to pt_regs
	l %r1,BASED(.Ldo_notify_resume)		l %r1,BASED(.Lc_do_notify_resume)
	la %r14,BASED(sysc_return)		la %r14,BASED(.Lsysc_return)
	br %r1 # call do_notify_resume		br %r1 # call do_notify_resume

	#		#
	# _PIF_PER_TRAP is set, call do_per_trap		# _PIF_PER_TRAP is set, call do_per_trap
	#		#
	sysc_singlestep:		.Lsysc_singlestep:
	ni __PT_FLAGS+3(%r11),255-_PIF_PER_TRAP		ni __PT_FLAGS+3(%r11),255-_PIF_PER_TRAP
	lr %r2,%r11 # pass pointer to pt_regs		lr %r2,%r11 # pass pointer to pt_regs
	l %r1,BASED(.Ldo_per_trap)		l %r1,BASED(.Lc_do_per_trap)
	la %r14,BASED(sysc_return)		la %r14,BASED(.Lsysc_return)
	br %r1 # call do_per_trap		br %r1 # call do_per_trap

	#		#
	# call tracehook_report_syscall_entry/tracehook_report_syscall_exit before		# call tracehook_report_syscall_entry/tracehook_report_syscall_exit before
	# and after the system call		# and after the system call
	#		#
	sysc_tracesys:		.Lsysc_tracesys:
	l %r1,BASED(.Ltrace_enter)		l %r1,BASED(.Lc_trace_enter)
	lr %r2,%r11 # pass pointer to pt_regs		lr %r2,%r11 # pass pointer to pt_regs
	la %r3,0		la %r3,0
	xr %r0,%r0		xr %r0,%r0
	@@ -316,22 +316,22 @@ sysc_tracesys:
	st %r0,__PT_R2(%r11)		st %r0,__PT_R2(%r11)
	basr %r14,%r1 # call do_syscall_trace_enter		basr %r14,%r1 # call do_syscall_trace_enter
	cl %r2,BASED(.Lnr_syscalls)		cl %r2,BASED(.Lnr_syscalls)
	jnl sysc_tracenogo		jnl .Lsysc_tracenogo
	lr %r8,%r2		lr %r8,%r2
	sll %r8,2		sll %r8,2
	l %r9,0(%r8,%r10)		l %r9,0(%r8,%r10)
	sysc_tracego:		.Lsysc_tracego:
	lm %r3,%r7,__PT_R3(%r11)		lm %r3,%r7,__PT_R3(%r11)
	st %r7,STACK_FRAME_OVERHEAD(%r15)		st %r7,STACK_FRAME_OVERHEAD(%r15)
	l %r2,__PT_ORIG_GPR2(%r11)		l %r2,__PT_ORIG_GPR2(%r11)
	basr %r14,%r9 # call sys_xxx		basr %r14,%r9 # call sys_xxx
	st %r2,__PT_R2(%r11) # store return value		st %r2,__PT_R2(%r11) # store return value
	sysc_tracenogo:		.Lsysc_tracenogo:
	tm __TI_flags+3(%r12),_TIF_TRACE		tm __TI_flags+3(%r12),_TIF_TRACE
	jz sysc_return		jz .Lsysc_return
	l %r1,BASED(.Ltrace_exit)		l %r1,BASED(.Lc_trace_exit)
	lr %r2,%r11 # pass pointer to pt_regs		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		br %r1 # call do_syscall_trace_exit

	#		#
	@@ -341,18 +341,18 @@ ENTRY(ret_from_fork)
	la %r11,STACK_FRAME_OVERHEAD(%r15)		la %r11,STACK_FRAME_OVERHEAD(%r15)
	l %r12,__LC_THREAD_INFO		l %r12,__LC_THREAD_INFO
	l %r13,__LC_SVC_NEW_PSW+4		l %r13,__LC_SVC_NEW_PSW+4
	l %r1,BASED(.Lschedule_tail)		l %r1,BASED(.Lc_schedule_tail)
	basr %r14,%r1 # call schedule_tail		basr %r14,%r1 # call schedule_tail
	TRACE_IRQS_ON		TRACE_IRQS_ON
	ssm __LC_SVC_NEW_PSW # reenable interrupts		ssm __LC_SVC_NEW_PSW # reenable interrupts
	tm __PT_PSW+1(%r11),0x01 # forking a kernel thread ?		tm __PT_PSW+1(%r11),0x01 # forking a kernel thread ?
	jne sysc_tracenogo		jne .Lsysc_tracenogo
	# it's a kernel thread		# it's a kernel thread
	lm %r9,%r10,__PT_R9(%r11) # load gprs		lm %r9,%r10,__PT_R9(%r11) # load gprs
	ENTRY(kernel_thread_starter)		ENTRY(kernel_thread_starter)
	la %r2,0(%r10)		la %r2,0(%r10)
	basr %r14,%r9		basr %r14,%r9
	j sysc_tracenogo		j .Lsysc_tracenogo

	/*		/*
	* Program check handler routine		* Program check handler routine
	@@ -369,7 +369,7 @@ ENTRY(pgm_check_handler)
	tmh %r8,0x4000 # PER bit set in old PSW ?		tmh %r8,0x4000 # PER bit set in old PSW ?
	jnz 0f # -> enabled, can't be a double fault		jnz 0f # -> enabled, can't be a double fault
	tm __LC_PGM_ILC+3,0x80 # check for per exception		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		0: CHECK_STACK STACK_SIZE,__LC_SAVE_AREA_SYNC
	ahi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE)		ahi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
	j 2f		j 2f
	@@ -386,42 +386,42 @@ ENTRY(pgm_check_handler)
	jz 0f		jz 0f
	l %r1,__TI_task(%r12)		l %r1,__TI_task(%r12)
	tmh %r8,0x0001 # kernel per event ?		tmh %r8,0x0001 # kernel per event ?
	jz pgm_kprobe		jz .Lpgm_kprobe
	oi __PT_FLAGS+3(%r11),_PIF_PER_TRAP		oi __PT_FLAGS+3(%r11),_PIF_PER_TRAP
	mvc __THREAD_per_address(4,%r1),__LC_PER_ADDRESS		mvc __THREAD_per_address(4,%r1),__LC_PER_ADDRESS
	mvc __THREAD_per_cause(2,%r1),__LC_PER_CODE		mvc __THREAD_per_cause(2,%r1),__LC_PER_CODE
	mvc __THREAD_per_paid(1,%r1),__LC_PER_ACCESS_ID		mvc __THREAD_per_paid(1,%r1),__LC_PER_ACCESS_ID
	0: REENABLE_IRQS		0: REENABLE_IRQS
	xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)		xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)
	l %r1,BASED(.Ljump_table)		l %r1,BASED(.Lc_jump_table)
	la %r10,0x7f		la %r10,0x7f
	n %r10,__PT_INT_CODE(%r11)		n %r10,__PT_INT_CODE(%r11)
	je sysc_return		je .Lsysc_return
	sll %r10,2		sll %r10,2
	l %r1,0(%r10,%r1) # load address of handler routine		l %r1,0(%r10,%r1) # load address of handler routine
	lr %r2,%r11 # pass pointer to pt_regs		lr %r2,%r11 # pass pointer to pt_regs
	basr %r14,%r1 # branch to interrupt-handler		basr %r14,%r1 # branch to interrupt-handler
	j sysc_return		j .Lsysc_return

	#		#
	# PER event in supervisor state, must be kprobes		# PER event in supervisor state, must be kprobes
	#		#
	pgm_kprobe:		.Lpgm_kprobe:
	REENABLE_IRQS		REENABLE_IRQS
	xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)		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		lr %r2,%r11 # pass pointer to pt_regs
	basr %r14,%r1 # call do_per_trap		basr %r14,%r1 # call do_per_trap
	j sysc_return		j .Lsysc_return

	#		#
	# single stepped system call		# single stepped system call
	#		#
	pgm_svcper:		.Lpgm_svcper:
	mvc __LC_RETURN_PSW(4),__LC_SVC_NEW_PSW		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		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		* IO interrupt handler routine
	@@ -435,9 +435,9 @@ ENTRY(io_int_handler)
	l %r13,__LC_SVC_NEW_PSW+4		l %r13,__LC_SVC_NEW_PSW+4
	lm %r8,%r9,__LC_IO_OLD_PSW		lm %r8,%r9,__LC_IO_OLD_PSW
	tmh %r8,0x0001 # interrupting from user ?		tmh %r8,0x0001 # interrupting from user ?
	jz io_skip		jz .Lio_skip
	UPDATE_VTIME %r14,%r15,__LC_ASYNC_ENTER_TIMER		UPDATE_VTIME %r14,%r15,__LC_ASYNC_ENTER_TIMER
	io_skip:		.Lio_skip:
	SWITCH_ASYNC __LC_SAVE_AREA_ASYNC,__LC_ASYNC_STACK,STACK_SHIFT		SWITCH_ASYNC __LC_SAVE_AREA_ASYNC,__LC_ASYNC_STACK,STACK_SHIFT
	stm %r0,%r7,__PT_R0(%r11)		stm %r0,%r7,__PT_R0(%r11)
	mvc __PT_R8(32,%r11),__LC_SAVE_AREA_ASYNC		mvc __PT_R8(32,%r11),__LC_SAVE_AREA_ASYNC
	@@ -446,35 +446,35 @@ io_skip:
	xc __PT_FLAGS(4,%r11),__PT_FLAGS(%r11)		xc __PT_FLAGS(4,%r11),__PT_FLAGS(%r11)
	TRACE_IRQS_OFF		TRACE_IRQS_OFF
	xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)		xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)
	io_loop:		.Lio_loop:
	l %r1,BASED(.Ldo_IRQ)		l %r1,BASED(.Lc_do_IRQ)
	lr %r2,%r11 # pass pointer to pt_regs		lr %r2,%r11 # pass pointer to pt_regs
	lhi %r3,IO_INTERRUPT		lhi %r3,IO_INTERRUPT
	tm __PT_INT_CODE+8(%r11),0x80 # adapter interrupt ?		tm __PT_INT_CODE+8(%r11),0x80 # adapter interrupt ?
	jz io_call		jz .Lio_call
	lhi %r3,THIN_INTERRUPT		lhi %r3,THIN_INTERRUPT
	io_call:		.Lio_call:
	basr %r14,%r1 # call do_IRQ		basr %r14,%r1 # call do_IRQ
	tm __LC_MACHINE_FLAGS+2,0x10 # MACHINE_FLAG_LPAR		tm __LC_MACHINE_FLAGS+2,0x10 # MACHINE_FLAG_LPAR
	jz io_return		jz .Lio_return
	tpi 0		tpi 0
	jz io_return		jz .Lio_return
	mvc __PT_INT_CODE(12,%r11),__LC_SUBCHANNEL_ID		mvc __PT_INT_CODE(12,%r11),__LC_SUBCHANNEL_ID
	j io_loop		j .Lio_loop
	io_return:		.Lio_return:
	LOCKDEP_SYS_EXIT		LOCKDEP_SYS_EXIT
	TRACE_IRQS_ON		TRACE_IRQS_ON
	io_tif:		.Lio_tif:
	tm __TI_flags+3(%r12),_TIF_WORK		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		tm __LC_CPU_FLAGS+3,_CIF_WORK
	jnz io_work		jnz .Lio_work
	io_restore:		.Lio_restore:
	mvc __LC_RETURN_PSW(8),__PT_PSW(%r11)		mvc __LC_RETURN_PSW(8),__PT_PSW(%r11)
	stpt __LC_EXIT_TIMER		stpt __LC_EXIT_TIMER
	lm %r0,%r15,__PT_R0(%r11)		lm %r0,%r15,__PT_R0(%r11)
	lpsw __LC_RETURN_PSW		lpsw __LC_RETURN_PSW
	io_done:		.Lio_done:

	#		#
	# There is work todo, find out in which context we have been interrupted:		# 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		# 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.		# 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 ?		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		#ifdef CONFIG_PREEMPT
	# check for preemptive scheduling		# check for preemptive scheduling
	icm %r0,15,__TI_precount(%r12)		icm %r0,15,__TI_precount(%r12)
	jnz io_restore # preemption disabled		jnz .Lio_restore # preemption disabled
	tm __TI_flags+3(%r12),_TIF_NEED_RESCHED		tm __TI_flags+3(%r12),_TIF_NEED_RESCHED
	jno io_restore		jno .Lio_restore
	# switch to kernel stack		# switch to kernel stack
	l %r1,__PT_R15(%r11)		l %r1,__PT_R15(%r11)
	ahi %r1,-(STACK_FRAME_OVERHEAD + __PT_SIZE)		ahi %r1,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
	@@ -499,20 +499,20 @@ io_work:
	xc __SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1)		xc __SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1)
	la %r11,STACK_FRAME_OVERHEAD(%r1)		la %r11,STACK_FRAME_OVERHEAD(%r1)
	lr %r15,%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 to keep things symmetrical
	TRACE_IRQS_OFF		TRACE_IRQS_OFF
	l %r1,BASED(.Lpreempt_irq)		l %r1,BASED(.Lc_preempt_irq)
	basr %r14,%r1 # call preempt_schedule_irq		basr %r14,%r1 # call preempt_schedule_irq
	j io_return		j .Lio_return
	#else		#else
	j io_restore		j .Lio_restore
	#endif		#endif

	#		#
	# Need to do work before returning to userspace, switch to kernel stack		# Need to do work before returning to userspace, switch to kernel stack
	#		#
	io_work_user:		.Lio_work_user:
	l %r1,__LC_KERNEL_STACK		l %r1,__LC_KERNEL_STACK
	mvc STACK_FRAME_OVERHEAD(__PT_SIZE,%r1),0(%r11)		mvc STACK_FRAME_OVERHEAD(__PT_SIZE,%r1),0(%r11)
	xc __SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1)		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.		# 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		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		tm __TI_flags+3(%r12),_TIF_NEED_RESCHED
	jo io_reschedule		jo .Lio_reschedule
	tm __TI_flags+3(%r12),_TIF_SIGPENDING		tm __TI_flags+3(%r12),_TIF_SIGPENDING
	jo io_sigpending		jo .Lio_sigpending
	tm __TI_flags+3(%r12),_TIF_NOTIFY_RESUME		tm __TI_flags+3(%r12),_TIF_NOTIFY_RESUME
	jo io_notify_resume		jo .Lio_notify_resume
	tm __LC_CPU_FLAGS+3,_CIF_ASCE		tm __LC_CPU_FLAGS+3,_CIF_ASCE
	jo io_uaccess		jo .Lio_uaccess
	j io_return # beware of critical section cleanup		j .Lio_return # beware of critical section cleanup

	#		#
	# _CIF_MCCK_PENDING is set, call handler		# _CIF_MCCK_PENDING is set, call handler
	#		#
	io_mcck_pending:		.Lio_mcck_pending:
	# TRACE_IRQS_ON already done at io_return		# TRACE_IRQS_ON already done at .Lio_return
	l %r1,BASED(.Lhandle_mcck)		l %r1,BASED(.Lc_handle_mcck)
	basr %r14,%r1 # TIF bit will be cleared by handler		basr %r14,%r1 # TIF bit will be cleared by handler
	TRACE_IRQS_OFF		TRACE_IRQS_OFF
	j io_return		j .Lio_return

	#		#
	# _CIF_ASCE is set, load user space asce		# _CIF_ASCE is set, load user space asce
	#		#
	io_uaccess:		.Lio_uaccess:
	ni __LC_CPU_FLAGS+3,255-_CIF_ASCE		ni __LC_CPU_FLAGS+3,255-_CIF_ASCE
	lctl %c1,%c1,__LC_USER_ASCE # load primary asce		lctl %c1,%c1,__LC_USER_ASCE # load primary asce
	j io_return		j .Lio_return

	#		#
	# _TIF_NEED_RESCHED is set, call schedule		# _TIF_NEED_RESCHED is set, call schedule
	#		#
	io_reschedule:		.Lio_reschedule:
	# TRACE_IRQS_ON already done at io_return		# TRACE_IRQS_ON already done at .Lio_return
	l %r1,BASED(.Lschedule)		l %r1,BASED(.Lc_schedule)
	ssm __LC_SVC_NEW_PSW # reenable interrupts		ssm __LC_SVC_NEW_PSW # reenable interrupts
	basr %r14,%r1 # call scheduler		basr %r14,%r1 # call scheduler
	ssm __LC_PGM_NEW_PSW # disable I/O and ext. interrupts		ssm __LC_PGM_NEW_PSW # disable I/O and ext. interrupts
	TRACE_IRQS_OFF		TRACE_IRQS_OFF
	j io_return		j .Lio_return

	#		#
	# _TIF_SIGPENDING is set, call do_signal		# _TIF_SIGPENDING is set, call do_signal
	#		#
	io_sigpending:		.Lio_sigpending:
	# TRACE_IRQS_ON already done at io_return		# TRACE_IRQS_ON already done at .Lio_return
	l %r1,BASED(.Ldo_signal)		l %r1,BASED(.Lc_do_signal)
	ssm __LC_SVC_NEW_PSW # reenable interrupts		ssm __LC_SVC_NEW_PSW # reenable interrupts
	lr %r2,%r11 # pass pointer to pt_regs		lr %r2,%r11 # pass pointer to pt_regs
	basr %r14,%r1 # call do_signal		basr %r14,%r1 # call do_signal
	ssm __LC_PGM_NEW_PSW # disable I/O and ext. interrupts		ssm __LC_PGM_NEW_PSW # disable I/O and ext. interrupts
	TRACE_IRQS_OFF		TRACE_IRQS_OFF
	j io_return		j .Lio_return

	#		#
	# _TIF_SIGPENDING is set, call do_signal		# _TIF_SIGPENDING is set, call do_signal
	#		#
	io_notify_resume:		.Lio_notify_resume:
	# TRACE_IRQS_ON already done at io_return		# TRACE_IRQS_ON already done at .Lio_return
	l %r1,BASED(.Ldo_notify_resume)		l %r1,BASED(.Lc_do_notify_resume)
	ssm __LC_SVC_NEW_PSW # reenable interrupts		ssm __LC_SVC_NEW_PSW # reenable interrupts
	lr %r2,%r11 # pass pointer to pt_regs		lr %r2,%r11 # pass pointer to pt_regs
	basr %r14,%r1 # call do_notify_resume		basr %r14,%r1 # call do_notify_resume
	ssm __LC_PGM_NEW_PSW # disable I/O and ext. interrupts		ssm __LC_PGM_NEW_PSW # disable I/O and ext. interrupts
	TRACE_IRQS_OFF		TRACE_IRQS_OFF
	j io_return		j .Lio_return

	/*		/*
	* External interrupt handler routine		* External interrupt handler routine
	@@ -603,9 +603,9 @@ ENTRY(ext_int_handler)
	l %r13,__LC_SVC_NEW_PSW+4		l %r13,__LC_SVC_NEW_PSW+4
	lm %r8,%r9,__LC_EXT_OLD_PSW		lm %r8,%r9,__LC_EXT_OLD_PSW
	tmh %r8,0x0001 # interrupting from user ?		tmh %r8,0x0001 # interrupting from user ?
	jz ext_skip		jz .Lext_skip
	UPDATE_VTIME %r14,%r15,__LC_ASYNC_ENTER_TIMER		UPDATE_VTIME %r14,%r15,__LC_ASYNC_ENTER_TIMER
	ext_skip:		.Lext_skip:
	SWITCH_ASYNC __LC_SAVE_AREA_ASYNC,__LC_ASYNC_STACK,STACK_SHIFT		SWITCH_ASYNC __LC_SAVE_AREA_ASYNC,__LC_ASYNC_STACK,STACK_SHIFT
	stm %r0,%r7,__PT_R0(%r11)		stm %r0,%r7,__PT_R0(%r11)
	mvc __PT_R8(32,%r11),__LC_SAVE_AREA_ASYNC		mvc __PT_R8(32,%r11),__LC_SAVE_AREA_ASYNC
	@@ -614,29 +614,29 @@ ext_skip:
	mvc __PT_INT_PARM(4,%r11),__LC_EXT_PARAMS		mvc __PT_INT_PARM(4,%r11),__LC_EXT_PARAMS
	xc __PT_FLAGS(4,%r11),__PT_FLAGS(%r11)		xc __PT_FLAGS(4,%r11),__PT_FLAGS(%r11)
	TRACE_IRQS_OFF		TRACE_IRQS_OFF
	l %r1,BASED(.Ldo_IRQ)		l %r1,BASED(.Lc_do_IRQ)
	lr %r2,%r11 # pass pointer to pt_regs		lr %r2,%r11 # pass pointer to pt_regs
	lhi %r3,EXT_INTERRUPT		lhi %r3,EXT_INTERRUPT
	basr %r14,%r1 # call do_IRQ		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)		ENTRY(psw_idle)
	st %r3,__SF_EMPTY(%r15)		st %r3,__SF_EMPTY(%r15)
	basr %r1,0		basr %r1,0
	la %r1,psw_idle_lpsw+4-.(%r1)		la %r1,.Lpsw_idle_lpsw+4-.(%r1)
	st %r1,__SF_EMPTY+4(%r15)		st %r1,__SF_EMPTY+4(%r15)
	oi __SF_EMPTY+4(%r15),0x80		oi __SF_EMPTY+4(%r15),0x80
	stck __CLOCK_IDLE_ENTER(%r2)		stck __CLOCK_IDLE_ENTER(%r2)
	stpt __TIMER_IDLE_ENTER(%r2)		stpt __TIMER_IDLE_ENTER(%r2)
	psw_idle_lpsw:		.Lpsw_idle_lpsw:
	lpsw __SF_EMPTY(%r15)		lpsw __SF_EMPTY(%r15)
	br %r14		br %r14
	psw_idle_end:		.Lpsw_idle_end:

	__critical_end:		.L__critical_end:

	/*		/*
	* Machine check handler routines		* Machine check handler routines
	@@ -650,7 +650,7 @@ ENTRY(mcck_int_handler)
	l %r13,__LC_SVC_NEW_PSW+4		l %r13,__LC_SVC_NEW_PSW+4
	lm %r8,%r9,__LC_MCK_OLD_PSW		lm %r8,%r9,__LC_MCK_OLD_PSW
	tm __LC_MCCK_CODE,0x80 # system damage?		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		la %r14,__LC_CPU_TIMER_SAVE_AREA
	mvc __LC_MCCK_ENTER_TIMER(8),0(%r14)		mvc __LC_MCCK_ENTER_TIMER(8),0(%r14)
	tm __LC_MCCK_CODE+5,0x02 # stored cpu timer value valid?		tm __LC_MCCK_CODE+5,0x02 # stored cpu timer value valid?
	@@ -668,22 +668,22 @@ ENTRY(mcck_int_handler)
	2: spt 0(%r14)		2: spt 0(%r14)
	mvc __LC_MCCK_ENTER_TIMER(8),0(%r14)		mvc __LC_MCCK_ENTER_TIMER(8),0(%r14)
	3: tm __LC_MCCK_CODE+2,0x09 # mwp + ia of old psw valid?		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 ?		tm %r8,0x0001 # interrupting from user ?
	jz mcck_skip		jz .Lmcck_skip
	UPDATE_VTIME %r14,%r15,__LC_MCCK_ENTER_TIMER		UPDATE_VTIME %r14,%r15,__LC_MCCK_ENTER_TIMER
	mcck_skip:		.Lmcck_skip:
	SWITCH_ASYNC __LC_GPREGS_SAVE_AREA+32,__LC_PANIC_STACK,PAGE_SHIFT		SWITCH_ASYNC __LC_GPREGS_SAVE_AREA+32,__LC_PANIC_STACK,PAGE_SHIFT
	stm %r0,%r7,__PT_R0(%r11)		stm %r0,%r7,__PT_R0(%r11)
	mvc __PT_R8(32,%r11),__LC_GPREGS_SAVE_AREA+32		mvc __PT_R8(32,%r11),__LC_GPREGS_SAVE_AREA+32
	stm %r8,%r9,__PT_PSW(%r11)		stm %r8,%r9,__PT_PSW(%r11)
	xc __PT_FLAGS(4,%r11),__PT_FLAGS(%r11)		xc __PT_FLAGS(4,%r11),__PT_FLAGS(%r11)
	xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)		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		lr %r2,%r11 # pass pointer to pt_regs
	basr %r14,%r1 # call s390_do_machine_check		basr %r14,%r1 # call s390_do_machine_check
	tm __PT_PSW+1(%r11),0x01 # returning to user ?		tm __PT_PSW+1(%r11),0x01 # returning to user ?
	jno mcck_return		jno .Lmcck_return
	l %r1,__LC_KERNEL_STACK # switch to kernel stack		l %r1,__LC_KERNEL_STACK # switch to kernel stack
	mvc STACK_FRAME_OVERHEAD(__PT_SIZE,%r1),0(%r11)		mvc STACK_FRAME_OVERHEAD(__PT_SIZE,%r1),0(%r11)
	xc __SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1)		xc __SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1)
	@@ -691,12 +691,12 @@ mcck_skip:
	lr %r15,%r1		lr %r15,%r1
	ssm __LC_PGM_NEW_PSW # turn dat on, keep irqs off		ssm __LC_PGM_NEW_PSW # turn dat on, keep irqs off
	tm __LC_CPU_FLAGS+3,_CIF_MCCK_PENDING		tm __LC_CPU_FLAGS+3,_CIF_MCCK_PENDING
	jno mcck_return		jno .Lmcck_return
	TRACE_IRQS_OFF		TRACE_IRQS_OFF
	l %r1,BASED(.Lhandle_mcck)		l %r1,BASED(.Lc_handle_mcck)
	basr %r14,%r1 # call s390_handle_mcck		basr %r14,%r1 # call s390_handle_mcck
	TRACE_IRQS_ON		TRACE_IRQS_ON
	mcck_return:		.Lmcck_return:
	mvc __LC_RETURN_MCCK_PSW(8),__PT_PSW(%r11) # move return PSW		mvc __LC_RETURN_MCCK_PSW(8),__PT_PSW(%r11) # move return PSW
	tm __LC_RETURN_MCCK_PSW+1,0x01 # returning to user ?		tm __LC_RETURN_MCCK_PSW+1,0x01 # returning to user ?
	jno 0f		jno 0f
	@@ -706,15 +706,15 @@ mcck_return:
	0: lm %r0,%r15,__PT_R0(%r11)		0: lm %r0,%r15,__PT_R0(%r11)
	lpsw __LC_RETURN_MCCK_PSW		lpsw __LC_RETURN_MCCK_PSW

	mcck_panic:		.Lmcck_panic:
	l %r14,__LC_PANIC_STACK		l %r14,__LC_PANIC_STACK
	slr %r14,%r15		slr %r14,%r15
	sra %r14,PAGE_SHIFT		sra %r14,PAGE_SHIFT
	jz 0f		jz 0f
	l %r15,__LC_PANIC_STACK		l %r15,__LC_PANIC_STACK
	j mcck_skip		j .Lmcck_skip
	0: ahi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE)		0: ahi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
	j mcck_skip		j .Lmcck_skip

	#		#
	# PSW restart interrupt handler		# PSW restart interrupt handler
	@@ -764,58 +764,58 @@ stack_overflow:
	1: .long kernel_stack_overflow		1: .long kernel_stack_overflow
	#endif		#endif

	cleanup_table:		.Lcleanup_table:
	.long system_call + 0x80000000		.long system_call + 0x80000000
	.long sysc_do_svc + 0x80000000		.long .Lsysc_do_svc + 0x80000000
	.long sysc_tif + 0x80000000		.long .Lsysc_tif + 0x80000000
	.long sysc_restore + 0x80000000		.long .Lsysc_restore + 0x80000000
	.long sysc_done + 0x80000000		.long .Lsysc_done + 0x80000000
	.long io_tif + 0x80000000		.long .Lio_tif + 0x80000000
	.long io_restore + 0x80000000		.long .Lio_restore + 0x80000000
	.long io_done + 0x80000000		.long .Lio_done + 0x80000000
	.long psw_idle + 0x80000000		.long psw_idle + 0x80000000
	.long psw_idle_end + 0x80000000		.long .Lpsw_idle_end + 0x80000000

	cleanup_critical:		cleanup_critical:
	cl %r9,BASED(cleanup_table) # system_call		cl %r9,BASED(.Lcleanup_table) # system_call
	jl 0f		jl 0f
	cl %r9,BASED(cleanup_table+4) # sysc_do_svc		cl %r9,BASED(.Lcleanup_table+4) # .Lsysc_do_svc
	jl cleanup_system_call		jl .Lcleanup_system_call
	cl %r9,BASED(cleanup_table+8) # sysc_tif		cl %r9,BASED(.Lcleanup_table+8) # .Lsysc_tif
	jl 0f		jl 0f
	cl %r9,BASED(cleanup_table+12) # sysc_restore		cl %r9,BASED(.Lcleanup_table+12) # .Lsysc_restore
	jl cleanup_sysc_tif		jl .Lcleanup_sysc_tif
	cl %r9,BASED(cleanup_table+16) # sysc_done		cl %r9,BASED(.Lcleanup_table+16) # .Lsysc_done
	jl cleanup_sysc_restore		jl .Lcleanup_sysc_restore
	cl %r9,BASED(cleanup_table+20) # io_tif		cl %r9,BASED(.Lcleanup_table+20) # .Lio_tif
	jl 0f		jl 0f
	cl %r9,BASED(cleanup_table+24) # io_restore		cl %r9,BASED(.Lcleanup_table+24) # .Lio_restore
	jl cleanup_io_tif		jl .Lcleanup_io_tif
	cl %r9,BASED(cleanup_table+28) # io_done		cl %r9,BASED(.Lcleanup_table+28) # .Lio_done
	jl cleanup_io_restore		jl .Lcleanup_io_restore
	cl %r9,BASED(cleanup_table+32) # psw_idle		cl %r9,BASED(.Lcleanup_table+32) # psw_idle
	jl 0f		jl 0f
	cl %r9,BASED(cleanup_table+36) # psw_idle_end		cl %r9,BASED(.Lcleanup_table+36) # .Lpsw_idle_end
	jl cleanup_idle		jl .Lcleanup_idle
	0: br %r14		0: br %r14

	cleanup_system_call:		.Lcleanup_system_call:
	# check if stpt has been executed		# check if stpt has been executed
	cl %r9,BASED(cleanup_system_call_insn)		cl %r9,BASED(.Lcleanup_system_call_insn)
	jh 0f		jh 0f
	mvc __LC_SYNC_ENTER_TIMER(8),__LC_ASYNC_ENTER_TIMER		mvc __LC_SYNC_ENTER_TIMER(8),__LC_ASYNC_ENTER_TIMER
	chi %r11,__LC_SAVE_AREA_ASYNC		chi %r11,__LC_SAVE_AREA_ASYNC
	je 0f		je 0f
	mvc __LC_SYNC_ENTER_TIMER(8),__LC_MCCK_ENTER_TIMER		mvc __LC_SYNC_ENTER_TIMER(8),__LC_MCCK_ENTER_TIMER
	0: # check if stm has been executed		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		jh 0f
	mvc __LC_SAVE_AREA_SYNC(32),0(%r11)		mvc __LC_SAVE_AREA_SYNC(32),0(%r11)
	0: # set up saved registers r12, and r13		0: # set up saved registers r12, and r13
	st %r12,16(%r11) # r12 thread-info pointer		st %r12,16(%r11) # r12 thread-info pointer
	st %r13,20(%r11) # r13 literal-pool pointer		st %r13,20(%r11) # r13 literal-pool pointer
	# check if the user time calculation has been done		# 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		jh 0f
	l %r10,__LC_EXIT_TIMER		l %r10,__LC_EXIT_TIMER
	l %r15,__LC_EXIT_TIMER+4		l %r15,__LC_EXIT_TIMER+4
	@@ -824,7 +824,7 @@ cleanup_system_call:
	st %r10,__LC_USER_TIMER		st %r10,__LC_USER_TIMER
	st %r15,__LC_USER_TIMER+4		st %r15,__LC_USER_TIMER+4
	0: # check if the system time calculation has been done		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		jh 0f
	l %r10,__LC_LAST_UPDATE_TIMER		l %r10,__LC_LAST_UPDATE_TIMER
	l %r15,__LC_LAST_UPDATE_TIMER+4		l %r15,__LC_LAST_UPDATE_TIMER+4
	@@ -848,20 +848,20 @@ cleanup_system_call:
	# setup saved register 15		# setup saved register 15
	st %r15,28(%r11) # r15 stack pointer		st %r15,28(%r11) # r15 stack pointer
	# set new psw address and exit		# 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		br %r14
	cleanup_system_call_insn:		.Lcleanup_system_call_insn:
	.long system_call + 0x80000000		.long system_call + 0x80000000
	.long sysc_stm + 0x80000000		.long .Lsysc_stm + 0x80000000
	.long sysc_vtime + 0x80000000 + 36		.long .Lsysc_vtime + 0x80000000 + 36
	.long sysc_vtime + 0x80000000 + 76		.long .Lsysc_vtime + 0x80000000 + 76

	cleanup_sysc_tif:		.Lcleanup_sysc_tif:
	l %r9,BASED(cleanup_table+8) # sysc_tif + 0x80000000		l %r9,BASED(.Lcleanup_table+8) # .Lsysc_tif + 0x80000000
	br %r14		br %r14

	cleanup_sysc_restore:		.Lcleanup_sysc_restore:
	cl %r9,BASED(cleanup_sysc_restore_insn)		cl %r9,BASED(.Lcleanup_sysc_restore_insn)
	jhe 0f		jhe 0f
	l %r9,12(%r11) # get saved pointer to pt_regs		l %r9,12(%r11) # get saved pointer to pt_regs
	mvc __LC_RETURN_PSW(8),__PT_PSW(%r9)		mvc __LC_RETURN_PSW(8),__PT_PSW(%r9)
	@@ -869,15 +869,15 @@ cleanup_sysc_restore:
	lm %r0,%r7,__PT_R0(%r9)		lm %r0,%r7,__PT_R0(%r9)
	0: lm %r8,%r9,__LC_RETURN_PSW		0: lm %r8,%r9,__LC_RETURN_PSW
	br %r14		br %r14
	cleanup_sysc_restore_insn:		.Lcleanup_sysc_restore_insn:
	.long sysc_done - 4 + 0x80000000		.long .Lsysc_done - 4 + 0x80000000

	cleanup_io_tif:		.Lcleanup_io_tif:
	l %r9,BASED(cleanup_table+20) # io_tif + 0x80000000		l %r9,BASED(.Lcleanup_table+20) # .Lio_tif + 0x80000000
	br %r14		br %r14

	cleanup_io_restore:		.Lcleanup_io_restore:
	cl %r9,BASED(cleanup_io_restore_insn)		cl %r9,BASED(.Lcleanup_io_restore_insn)
	jhe 0f		jhe 0f
	l %r9,12(%r11) # get saved r11 pointer to pt_regs		l %r9,12(%r11) # get saved r11 pointer to pt_regs
	mvc __LC_RETURN_PSW(8),__PT_PSW(%r9)		mvc __LC_RETURN_PSW(8),__PT_PSW(%r9)
	@@ -885,10 +885,10 @@ cleanup_io_restore:
	lm %r0,%r7,__PT_R0(%r9)		lm %r0,%r7,__PT_R0(%r9)
	0: lm %r8,%r9,__LC_RETURN_PSW		0: lm %r8,%r9,__LC_RETURN_PSW
	br %r14		br %r14
	cleanup_io_restore_insn:		.Lcleanup_io_restore_insn:
	.long io_done - 4 + 0x80000000		.long .Lio_done - 4 + 0x80000000

	cleanup_idle:		.Lcleanup_idle:
	# copy interrupt clock & cpu timer		# copy interrupt clock & cpu timer
	mvc __CLOCK_IDLE_EXIT(8,%r2),__LC_INT_CLOCK		mvc __CLOCK_IDLE_EXIT(8,%r2),__LC_INT_CLOCK
	mvc __TIMER_IDLE_EXIT(8,%r2),__LC_ASYNC_ENTER_TIMER		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 __CLOCK_IDLE_EXIT(8,%r2),__LC_MCCK_CLOCK
	mvc __TIMER_IDLE_EXIT(8,%r2),__LC_MCCK_ENTER_TIMER		mvc __TIMER_IDLE_EXIT(8,%r2),__LC_MCCK_ENTER_TIMER
	0: # check if stck has been executed		0: # check if stck has been executed
	cl %r9,BASED(cleanup_idle_insn)		cl %r9,BASED(.Lcleanup_idle_insn)
	jhe 1f		jhe 1f
	mvc __CLOCK_IDLE_ENTER(8,%r2),__CLOCK_IDLE_EXIT(%r2)		mvc __CLOCK_IDLE_ENTER(8,%r2),__CLOCK_IDLE_EXIT(%r2)
	mvc __TIMER_IDLE_ENTER(8,%r2),__TIMER_IDLE_EXIT(%r3)		mvc __TIMER_IDLE_ENTER(8,%r2),__TIMER_IDLE_EXIT(%r3)
	@@ -913,12 +913,12 @@ cleanup_idle:
	stm %r9,%r10,__LC_SYSTEM_TIMER		stm %r9,%r10,__LC_SYSTEM_TIMER
	mvc __LC_LAST_UPDATE_TIMER(8),__TIMER_IDLE_EXIT(%r2)		mvc __LC_LAST_UPDATE_TIMER(8),__TIMER_IDLE_EXIT(%r2)
	# prepare return psw		# 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		l %r9,24(%r11) # return from psw_idle
	br %r14		br %r14
	cleanup_idle_insn:		.Lcleanup_idle_insn:
	.long psw_idle_lpsw + 0x80000000		.long .Lpsw_idle_lpsw + 0x80000000
	cleanup_idle_wait:		.Lcleanup_idle_wait:
	.long 0xfcfdffff		.long 0xfcfdffff

	/*		/*
	@@ -933,30 +933,30 @@ cleanup_idle_wait:
	/*		/*
	* Symbol constants		* Symbol constants
	*/		*/
	.Ldo_machine_check: .long s390_do_machine_check		.Lc_do_machine_check: .long s390_do_machine_check
	.Lhandle_mcck: .long s390_handle_mcck		.Lc_handle_mcck: .long s390_handle_mcck
	.Ldo_IRQ: .long do_IRQ		.Lc_do_IRQ: .long do_IRQ
	.Ldo_signal: .long do_signal		.Lc_do_signal: .long do_signal
	.Ldo_notify_resume: .long do_notify_resume		.Lc_do_notify_resume: .long do_notify_resume
	.Ldo_per_trap: .long do_per_trap		.Lc_do_per_trap: .long do_per_trap
	.Ljump_table: .long pgm_check_table		.Lc_jump_table: .long pgm_check_table
	.Lschedule: .long schedule		.Lc_schedule: .long schedule
	#ifdef CONFIG_PREEMPT		#ifdef CONFIG_PREEMPT
	.Lpreempt_irq: .long preempt_schedule_irq		.Lc_preempt_irq: .long preempt_schedule_irq
	#endif		#endif
	.Ltrace_enter: .long do_syscall_trace_enter		.Lc_trace_enter: .long do_syscall_trace_enter
	.Ltrace_exit: .long do_syscall_trace_exit		.Lc_trace_exit: .long do_syscall_trace_exit
	.Lschedule_tail: .long schedule_tail		.Lc_schedule_tail: .long schedule_tail
	.Lsysc_per: .long sysc_per + 0x80000000		.Lc_sysc_per: .long .Lsysc_per + 0x80000000
	#ifdef CONFIG_TRACE_IRQFLAGS		#ifdef CONFIG_TRACE_IRQFLAGS
	.Lhardirqs_on: .long trace_hardirqs_on_caller		.Lc_hardirqs_on: .long trace_hardirqs_on_caller
	.Lhardirqs_off: .long trace_hardirqs_off_caller		.Lc_hardirqs_off: .long trace_hardirqs_off_caller
	#endif		#endif
	#ifdef CONFIG_LOCKDEP		#ifdef CONFIG_LOCKDEP
	.Llockdep_sys_exit: .long lockdep_sys_exit		.Lc_lockdep_sys_exit: .long lockdep_sys_exit
	#endif		#endif
	.Lcritical_start: .long __critical_start + 0x80000000		.Lc_critical_start: .long .L__critical_start + 0x80000000
	.Lcritical_length: .long __critical_end - __critical_start		.Lc_critical_length: .long .L__critical_end - .L__critical_start

	.section .rodata, "a"		.section .rodata, "a"
	#define SYSCALL(esa,esame,emu) .long esa		#define SYSCALL(esa,esame,emu) .long esa

arch/s390/kernel/entry64.S

+186 −186

File changed.

Preview size limit exceeded, changes collapsed.