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-rw-r--r--arch/s390/kernel/debug.c52
-rw-r--r--arch/s390/kernel/entry.S116
-rw-r--r--arch/s390/kernel/entry64.S117
-rw-r--r--arch/s390/kernel/time.c5
4 files changed, 209 insertions, 81 deletions
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index 960ba6029c3a..bc59282da762 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -62,7 +62,7 @@ typedef struct
} debug_sprintf_entry_t;
-extern void tod_to_timeval(uint64_t todval, struct timeval *xtime);
+extern void tod_to_timeval(uint64_t todval, struct timespec *xtime);
/* internal function prototyes */
@@ -374,9 +374,24 @@ debug_info_copy(debug_info_t* in, int mode)
{
int i,j;
debug_info_t* rc;
+ unsigned long flags;
+
+ /* get a consistent copy of the debug areas */
+ do {
+ rc = debug_info_alloc(in->name, in->pages_per_area,
+ in->nr_areas, in->buf_size, in->level, mode);
+ spin_lock_irqsave(&in->lock, flags);
+ if(!rc)
+ goto out;
+ /* has something changed in the meantime ? */
+ if((rc->pages_per_area == in->pages_per_area) &&
+ (rc->nr_areas == in->nr_areas)) {
+ break;
+ }
+ spin_unlock_irqrestore(&in->lock, flags);
+ debug_info_free(rc);
+ } while (1);
- rc = debug_info_alloc(in->name, in->pages_per_area, in->nr_areas,
- in->buf_size, in->level, mode);
if(!rc || (mode == NO_AREAS))
goto out;
@@ -386,6 +401,7 @@ debug_info_copy(debug_info_t* in, int mode)
}
}
out:
+ spin_unlock_irqrestore(&in->lock, flags);
return rc;
}
@@ -593,19 +609,15 @@ debug_open(struct inode *inode, struct file *file)
debug_info_t *debug_info, *debug_info_snapshot;
down(&debug_lock);
-
- /* find debug log and view */
- debug_info = debug_area_first;
- while(debug_info != NULL){
- for (i = 0; i < DEBUG_MAX_VIEWS; i++) {
- if (!debug_info->views[i])
- continue;
- else if (debug_info->debugfs_entries[i] ==
- file->f_dentry) {
- goto found; /* found view ! */
- }
+ debug_info = (struct debug_info*)file->f_dentry->d_inode->u.generic_ip;
+ /* find debug view */
+ for (i = 0; i < DEBUG_MAX_VIEWS; i++) {
+ if (!debug_info->views[i])
+ continue;
+ else if (debug_info->debugfs_entries[i] ==
+ file->f_dentry) {
+ goto found; /* found view ! */
}
- debug_info = debug_info->next;
}
/* no entry found */
rc = -EINVAL;
@@ -833,7 +845,7 @@ extern inline void
debug_finish_entry(debug_info_t * id, debug_entry_t* active, int level,
int exception)
{
- STCK(active->id.stck);
+ active->id.stck = get_clock();
active->id.fields.cpuid = smp_processor_id();
active->caller = __builtin_return_address(0);
active->id.fields.exception = exception;
@@ -1078,7 +1090,7 @@ debug_register_view(debug_info_t * id, struct debug_view *view)
if (view->input_proc)
mode |= S_IWUSR;
pde = debugfs_create_file(view->name, mode, id->debugfs_root_entry,
- NULL, &debug_file_ops);
+ id , &debug_file_ops);
if (!pde){
printk(KERN_WARNING "debug: debugfs_create_file() failed!"\
" Cannot register view %s/%s\n", id->name,view->name);
@@ -1432,7 +1444,7 @@ int
debug_dflt_header_fn(debug_info_t * id, struct debug_view *view,
int area, debug_entry_t * entry, char *out_buf)
{
- struct timeval time_val;
+ struct timespec time_spec;
unsigned long long time;
char *except_str;
unsigned long caller;
@@ -1443,7 +1455,7 @@ debug_dflt_header_fn(debug_info_t * id, struct debug_view *view,
time = entry->id.stck;
/* adjust todclock to 1970 */
time -= 0x8126d60e46000000LL - (0x3c26700LL * 1000000 * 4096);
- tod_to_timeval(time, &time_val);
+ tod_to_timeval(time, &time_spec);
if (entry->id.fields.exception)
except_str = "*";
@@ -1451,7 +1463,7 @@ debug_dflt_header_fn(debug_info_t * id, struct debug_view *view,
except_str = "-";
caller = ((unsigned long) entry->caller) & PSW_ADDR_INSN;
rc += sprintf(out_buf, "%02i %011lu:%06lu %1u %1s %02i %p ",
- area, time_val.tv_sec, time_val.tv_usec, level,
+ area, time_spec.tv_sec, time_spec.tv_nsec / 1000, level,
except_str, entry->id.fields.cpuid, (void *) caller);
return rc;
}
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 1a271b16cb5c..cbe7d6a2d02c 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -138,14 +138,14 @@ STACK_SIZE = 1 << STACK_SHIFT
st %r12,__SF_BACKCHAIN(%r15) # clear back chain
.endm
- .macro RESTORE_ALL sync
- mvc __LC_RETURN_PSW(8),SP_PSW(%r15) # move user PSW to lowcore
+ .macro RESTORE_ALL psworg,sync
+ mvc \psworg(8),SP_PSW(%r15) # move user PSW to lowcore
.if !\sync
- ni __LC_RETURN_PSW+1,0xfd # clear wait state bit
+ ni \psworg+1,0xfd # clear wait state bit
.endif
lm %r0,%r15,SP_R0(%r15) # load gprs 0-15 of user
STORE_TIMER __LC_EXIT_TIMER
- lpsw __LC_RETURN_PSW # back to caller
+ lpsw \psworg # back to caller
.endm
/*
@@ -235,7 +235,7 @@ sysc_return:
tm __TI_flags+3(%r9),_TIF_WORK_SVC
bnz BASED(sysc_work) # there is work to do (signals etc.)
sysc_leave:
- RESTORE_ALL 1
+ RESTORE_ALL __LC_RETURN_PSW,1
#
# recheck if there is more work to do
@@ -312,8 +312,6 @@ sysc_singlestep:
la %r14,BASED(sysc_return) # load adr. of system return
br %r1 # branch to do_single_step
-__critical_end:
-
#
# call trace before and after sys_call
#
@@ -571,7 +569,8 @@ io_return:
tm __TI_flags+3(%r9),_TIF_WORK_INT
bnz BASED(io_work) # there is work to do (signals etc.)
io_leave:
- RESTORE_ALL 0
+ RESTORE_ALL __LC_RETURN_PSW,0
+io_done:
#ifdef CONFIG_PREEMPT
io_preempt:
@@ -621,7 +620,7 @@ io_work_loop:
#
io_mcck_pending:
l %r1,BASED(.Ls390_handle_mcck)
- l %r14,BASED(io_work_loop)
+ la %r14,BASED(io_work_loop)
br %r1 # TIF bit will be cleared by handler
#
@@ -674,6 +673,8 @@ ext_no_vtime:
basr %r14,%r1
b BASED(io_return)
+__critical_end:
+
/*
* Machine check handler routines
*/
@@ -681,6 +682,7 @@ ext_no_vtime:
.globl mcck_int_handler
mcck_int_handler:
spt __LC_CPU_TIMER_SAVE_AREA # revalidate cpu timer
+ mvc __LC_ASYNC_ENTER_TIMER(8),__LC_CPU_TIMER_SAVE_AREA
lm %r0,%r15,__LC_GPREGS_SAVE_AREA # revalidate gprs
SAVE_ALL_BASE __LC_SAVE_AREA+32
la %r12,__LC_MCK_OLD_PSW
@@ -693,17 +695,8 @@ mcck_int_handler:
mvc __LC_ASYNC_ENTER_TIMER(8),__LC_LAST_UPDATE_TIMER
mvc __LC_SYNC_ENTER_TIMER(8),__LC_LAST_UPDATE_TIMER
mvc __LC_EXIT_TIMER(8),__LC_LAST_UPDATE_TIMER
-0: tm __LC_MCCK_CODE+2,0x08 # mwp of old psw valid?
- bno BASED(mcck_no_vtime) # no -> skip cleanup critical
- tm __LC_MCK_OLD_PSW+1,0x01 # interrupting from user ?
- bz BASED(mcck_no_vtime)
- UPDATE_VTIME __LC_EXIT_TIMER,__LC_ASYNC_ENTER_TIMER,__LC_USER_TIMER
- UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
- mvc __LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
-mcck_no_vtime:
#endif
-0:
- tm __LC_MCCK_CODE+2,0x09 # mwp + ia of old psw valid?
+0: tm __LC_MCCK_CODE+2,0x09 # mwp + ia of old psw valid?
bno BASED(mcck_int_main) # no -> skip cleanup critical
tm __LC_MCK_OLD_PSW+1,0x01 # test problem state bit
bnz BASED(mcck_int_main) # from user -> load async stack
@@ -720,6 +713,16 @@ mcck_int_main:
be BASED(0f)
l %r15,__LC_PANIC_STACK # load panic stack
0: CREATE_STACK_FRAME __LC_MCK_OLD_PSW,__LC_SAVE_AREA+32
+#ifdef CONFIG_VIRT_CPU_ACCOUNTING
+ tm __LC_MCCK_CODE+2,0x08 # mwp of old psw valid?
+ bno BASED(mcck_no_vtime) # no -> skip cleanup critical
+ tm __LC_MCK_OLD_PSW+1,0x01 # interrupting from user ?
+ bz BASED(mcck_no_vtime)
+ UPDATE_VTIME __LC_EXIT_TIMER,__LC_ASYNC_ENTER_TIMER,__LC_USER_TIMER
+ UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
+ mvc __LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
+mcck_no_vtime:
+#endif
l %r9,__LC_THREAD_INFO # load pointer to thread_info struct
la %r2,SP_PTREGS(%r15) # load pt_regs
l %r1,BASED(.Ls390_mcck)
@@ -737,7 +740,7 @@ mcck_int_main:
l %r1,BASED(.Ls390_handle_mcck)
basr %r14,%r1 # call machine check handler
mcck_return:
- RESTORE_ALL 0
+ RESTORE_ALL __LC_RETURN_MCCK_PSW,0
#ifdef CONFIG_SMP
/*
@@ -803,6 +806,10 @@ cleanup_table_sysc_leave:
.long sysc_leave + 0x80000000, sysc_work_loop + 0x80000000
cleanup_table_sysc_work_loop:
.long sysc_work_loop + 0x80000000, sysc_reschedule + 0x80000000
+cleanup_table_io_leave:
+ .long io_leave + 0x80000000, io_done + 0x80000000
+cleanup_table_io_work_loop:
+ .long io_work_loop + 0x80000000, io_mcck_pending + 0x80000000
cleanup_critical:
clc 4(4,%r12),BASED(cleanup_table_system_call)
@@ -825,10 +832,26 @@ cleanup_critical:
clc 4(4,%r12),BASED(cleanup_table_sysc_work_loop+4)
bl BASED(cleanup_sysc_return)
0:
+ clc 4(4,%r12),BASED(cleanup_table_io_leave)
+ bl BASED(0f)
+ clc 4(4,%r12),BASED(cleanup_table_io_leave+4)
+ bl BASED(cleanup_io_leave)
+0:
+ clc 4(4,%r12),BASED(cleanup_table_io_work_loop)
+ bl BASED(0f)
+ clc 4(4,%r12),BASED(cleanup_table_io_work_loop+4)
+ bl BASED(cleanup_io_return)
+0:
br %r14
cleanup_system_call:
mvc __LC_RETURN_PSW(8),0(%r12)
+ c %r12,BASED(.Lmck_old_psw)
+ be BASED(0f)
+ la %r12,__LC_SAVE_AREA+16
+ b BASED(1f)
+0: la %r12,__LC_SAVE_AREA+32
+1:
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
clc __LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn+4)
bh BASED(0f)
@@ -838,11 +861,13 @@ cleanup_system_call:
#endif
clc __LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn)
bh BASED(0f)
- mvc __LC_SAVE_AREA(16),__LC_SAVE_AREA+16
-0: st %r13,__LC_SAVE_AREA+20
+ mvc __LC_SAVE_AREA(16),0(%r12)
+0: st %r13,4(%r12)
+ st %r12,__LC_SAVE_AREA+48 # argh
SAVE_ALL __LC_SVC_OLD_PSW,__LC_SAVE_AREA,1
CREATE_STACK_FRAME __LC_SVC_OLD_PSW,__LC_SAVE_AREA
- st %r15,__LC_SAVE_AREA+28
+ l %r12,__LC_SAVE_AREA+48 # argh
+ st %r15,12(%r12)
lh %r7,0x8a
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
cleanup_vtime:
@@ -879,17 +904,21 @@ cleanup_sysc_return:
cleanup_sysc_leave:
clc 4(4,%r12),BASED(cleanup_sysc_leave_insn)
- be BASED(0f)
+ be BASED(2f)
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
mvc __LC_EXIT_TIMER(8),__LC_ASYNC_ENTER_TIMER
clc 4(4,%r12),BASED(cleanup_sysc_leave_insn+4)
- be BASED(0f)
+ be BASED(2f)
#endif
mvc __LC_RETURN_PSW(8),SP_PSW(%r15)
- mvc __LC_SAVE_AREA+16(16),SP_R12(%r15)
- lm %r0,%r11,SP_R0(%r15)
+ c %r12,BASED(.Lmck_old_psw)
+ bne BASED(0f)
+ mvc __LC_SAVE_AREA+32(16),SP_R12(%r15)
+ b BASED(1f)
+0: mvc __LC_SAVE_AREA+16(16),SP_R12(%r15)
+1: lm %r0,%r11,SP_R0(%r15)
l %r15,SP_R15(%r15)
-0: la %r12,__LC_RETURN_PSW
+2: la %r12,__LC_RETURN_PSW
br %r14
cleanup_sysc_leave_insn:
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
@@ -897,6 +926,36 @@ cleanup_sysc_leave_insn:
#endif
.long sysc_leave + 10 + 0x80000000
+cleanup_io_return:
+ mvc __LC_RETURN_PSW(4),0(%r12)
+ mvc __LC_RETURN_PSW+4(4),BASED(cleanup_table_io_work_loop)
+ la %r12,__LC_RETURN_PSW
+ br %r14
+
+cleanup_io_leave:
+ clc 4(4,%r12),BASED(cleanup_io_leave_insn)
+ be BASED(2f)
+#ifdef CONFIG_VIRT_CPU_ACCOUNTING
+ mvc __LC_EXIT_TIMER(8),__LC_ASYNC_ENTER_TIMER
+ clc 4(4,%r12),BASED(cleanup_io_leave_insn+4)
+ be BASED(2f)
+#endif
+ mvc __LC_RETURN_PSW(8),SP_PSW(%r15)
+ c %r12,BASED(.Lmck_old_psw)
+ bne BASED(0f)
+ mvc __LC_SAVE_AREA+32(16),SP_R12(%r15)
+ b BASED(1f)
+0: mvc __LC_SAVE_AREA+16(16),SP_R12(%r15)
+1: lm %r0,%r11,SP_R0(%r15)
+ l %r15,SP_R15(%r15)
+2: la %r12,__LC_RETURN_PSW
+ br %r14
+cleanup_io_leave_insn:
+#ifdef CONFIG_VIRT_CPU_ACCOUNTING
+ .long io_leave + 18 + 0x80000000
+#endif
+ .long io_leave + 14 + 0x80000000
+
/*
* Integer constants
*/
@@ -918,6 +977,7 @@ cleanup_sysc_leave_insn:
.Ls390_mcck: .long s390_do_machine_check
.Ls390_handle_mcck:
.long s390_handle_mcck
+.Lmck_old_psw: .long __LC_MCK_OLD_PSW
.Ldo_IRQ: .long do_IRQ
.Ldo_extint: .long do_extint
.Ldo_signal: .long do_signal
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index d9f22915008c..fb77b72ab262 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -131,14 +131,14 @@ _TIF_WORK_INT = (_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_MCCK_PENDING)
stg %r12,__SF_BACKCHAIN(%r15)
.endm
- .macro RESTORE_ALL sync
- mvc __LC_RETURN_PSW(16),SP_PSW(%r15) # move user PSW to lowcore
+ .macro RESTORE_ALL psworg,sync
+ mvc \psworg(16),SP_PSW(%r15) # move user PSW to lowcore
.if !\sync
- ni __LC_RETURN_PSW+1,0xfd # clear wait state bit
+ ni \psworg+1,0xfd # clear wait state bit
.endif
lmg %r0,%r15,SP_R0(%r15) # load gprs 0-15 of user
STORE_TIMER __LC_EXIT_TIMER
- lpswe __LC_RETURN_PSW # back to caller
+ lpswe \psworg # back to caller
.endm
/*
@@ -214,8 +214,8 @@ sysc_nr_ok:
sysc_do_restart:
larl %r10,sys_call_table
#ifdef CONFIG_S390_SUPPORT
- tm SP_PSW+3(%r15),0x01 # are we running in 31 bit mode ?
- jo sysc_noemu
+ tm __TI_flags+5(%r9),(_TIF_31BIT>>16) # running in 31 bit mode ?
+ jno sysc_noemu
larl %r10,sys_call_table_emu # use 31 bit emulation system calls
sysc_noemu:
#endif
@@ -233,7 +233,7 @@ sysc_return:
tm __TI_flags+7(%r9),_TIF_WORK_SVC
jnz sysc_work # there is work to do (signals etc.)
sysc_leave:
- RESTORE_ALL 1
+ RESTORE_ALL __LC_RETURN_PSW,1
#
# recheck if there is more work to do
@@ -308,8 +308,6 @@ sysc_singlestep:
jg do_single_step # branch to do_sigtrap
-__critical_end:
-
#
# call syscall_trace before and after system call
# special linkage: %r12 contains the return address for trace_svc
@@ -612,7 +610,8 @@ io_return:
tm __TI_flags+7(%r9),_TIF_WORK_INT
jnz io_work # there is work to do (signals etc.)
io_leave:
- RESTORE_ALL 0
+ RESTORE_ALL __LC_RETURN_PSW,0
+io_done:
#ifdef CONFIG_PREEMPT
io_preempt:
@@ -711,6 +710,8 @@ ext_no_vtime:
brasl %r14,do_extint
j io_return
+__critical_end:
+
/*
* Machine check handler routines
*/
@@ -718,6 +719,7 @@ ext_no_vtime:
mcck_int_handler:
la %r1,4095 # revalidate r1
spt __LC_CPU_TIMER_SAVE_AREA-4095(%r1) # revalidate cpu timer
+ mvc __LC_ASYNC_ENTER_TIMER(8),__LC_CPU_TIMER_SAVE_AREA-4095(%r1)
lmg %r0,%r15,__LC_GPREGS_SAVE_AREA-4095(%r1)# revalidate gprs
SAVE_ALL_BASE __LC_SAVE_AREA+64
la %r12,__LC_MCK_OLD_PSW
@@ -730,17 +732,8 @@ mcck_int_handler:
mvc __LC_ASYNC_ENTER_TIMER(8),__LC_LAST_UPDATE_TIMER
mvc __LC_SYNC_ENTER_TIMER(8),__LC_LAST_UPDATE_TIMER
mvc __LC_EXIT_TIMER(8),__LC_LAST_UPDATE_TIMER
-0: tm __LC_MCCK_CODE+2,0x08 # mwp of old psw valid?
- jno mcck_no_vtime # no -> no timer update
- tm __LC_MCK_OLD_PSW+1,0x01 # interrupting from user ?
- jz mcck_no_vtime
- UPDATE_VTIME __LC_EXIT_TIMER,__LC_ASYNC_ENTER_TIMER,__LC_USER_TIMER
- UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
- mvc __LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
-mcck_no_vtime:
#endif
-0:
- tm __LC_MCCK_CODE+2,0x09 # mwp + ia of old psw valid?
+0: tm __LC_MCCK_CODE+2,0x09 # mwp + ia of old psw valid?
jno mcck_int_main # no -> skip cleanup critical
tm __LC_MCK_OLD_PSW+1,0x01 # test problem state bit
jnz mcck_int_main # from user -> load kernel stack
@@ -756,6 +749,16 @@ mcck_int_main:
jz 0f
lg %r15,__LC_PANIC_STACK # load panic stack
0: CREATE_STACK_FRAME __LC_MCK_OLD_PSW,__LC_SAVE_AREA+64
+#ifdef CONFIG_VIRT_CPU_ACCOUNTING
+ tm __LC_MCCK_CODE+2,0x08 # mwp of old psw valid?
+ jno mcck_no_vtime # no -> no timer update
+ tm __LC_MCK_OLD_PSW+1,0x01 # interrupting from user ?
+ jz mcck_no_vtime
+ UPDATE_VTIME __LC_EXIT_TIMER,__LC_ASYNC_ENTER_TIMER,__LC_USER_TIMER
+ UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
+ mvc __LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
+mcck_no_vtime:
+#endif
lg %r9,__LC_THREAD_INFO # load pointer to thread_info struct
la %r2,SP_PTREGS(%r15) # load pt_regs
brasl %r14,s390_do_machine_check
@@ -771,7 +774,7 @@ mcck_int_main:
jno mcck_return
brasl %r14,s390_handle_mcck
mcck_return:
- RESTORE_ALL 0
+ RESTORE_ALL __LC_RETURN_MCCK_PSW,0
#ifdef CONFIG_SMP
/*
@@ -833,6 +836,10 @@ cleanup_table_sysc_leave:
.quad sysc_leave, sysc_work_loop
cleanup_table_sysc_work_loop:
.quad sysc_work_loop, sysc_reschedule
+cleanup_table_io_leave:
+ .quad io_leave, io_done
+cleanup_table_io_work_loop:
+ .quad io_work_loop, io_mcck_pending
cleanup_critical:
clc 8(8,%r12),BASED(cleanup_table_system_call)
@@ -855,10 +862,26 @@ cleanup_critical:
clc 8(8,%r12),BASED(cleanup_table_sysc_work_loop+8)
jl cleanup_sysc_return
0:
+ clc 8(8,%r12),BASED(cleanup_table_io_leave)
+ jl 0f
+ clc 8(8,%r12),BASED(cleanup_table_io_leave+8)
+ jl cleanup_io_leave
+0:
+ clc 8(8,%r12),BASED(cleanup_table_io_work_loop)
+ jl 0f
+ clc 8(8,%r12),BASED(cleanup_table_io_work_loop+8)
+ jl cleanup_io_return
+0:
br %r14
cleanup_system_call:
mvc __LC_RETURN_PSW(16),0(%r12)
+ cghi %r12,__LC_MCK_OLD_PSW
+ je 0f
+ la %r12,__LC_SAVE_AREA+32
+ j 1f
+0: la %r12,__LC_SAVE_AREA+64
+1:
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
clc __LC_RETURN_PSW+8(8),BASED(cleanup_system_call_insn+8)
jh 0f
@@ -868,11 +891,13 @@ cleanup_system_call:
#endif
clc __LC_RETURN_PSW+8(8),BASED(cleanup_system_call_insn)
jh 0f
- mvc __LC_SAVE_AREA(32),__LC_SAVE_AREA+32
-0: stg %r13,__LC_SAVE_AREA+40
+ mvc __LC_SAVE_AREA(32),0(%r12)
+0: stg %r13,8(%r12)
+ stg %r12,__LC_SAVE_AREA+96 # argh
SAVE_ALL __LC_SVC_OLD_PSW,__LC_SAVE_AREA,1
CREATE_STACK_FRAME __LC_SVC_OLD_PSW,__LC_SAVE_AREA
- stg %r15,__LC_SAVE_AREA+56
+ lg %r12,__LC_SAVE_AREA+96 # argh
+ stg %r15,24(%r12)
llgh %r7,__LC_SVC_INT_CODE
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
cleanup_vtime:
@@ -909,17 +934,21 @@ cleanup_sysc_return:
cleanup_sysc_leave:
clc 8(8,%r12),BASED(cleanup_sysc_leave_insn)
- je 0f
+ je 2f
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
mvc __LC_EXIT_TIMER(8),__LC_ASYNC_ENTER_TIMER
clc 8(8,%r12),BASED(cleanup_sysc_leave_insn+8)
- je 0f
+ je 2f
#endif
mvc __LC_RETURN_PSW(16),SP_PSW(%r15)
- mvc __LC_SAVE_AREA+32(32),SP_R12(%r15)
- lmg %r0,%r11,SP_R0(%r15)
+ cghi %r12,__LC_MCK_OLD_PSW
+ jne 0f
+ mvc __LC_SAVE_AREA+64(32),SP_R12(%r15)
+ j 1f
+0: mvc __LC_SAVE_AREA+32(32),SP_R12(%r15)
+1: lmg %r0,%r11,SP_R0(%r15)
lg %r15,SP_R15(%r15)
-0: la %r12,__LC_RETURN_PSW
+2: la %r12,__LC_RETURN_PSW
br %r14
cleanup_sysc_leave_insn:
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
@@ -927,6 +956,36 @@ cleanup_sysc_leave_insn:
#endif
.quad sysc_leave + 12
+cleanup_io_return:
+ mvc __LC_RETURN_PSW(8),0(%r12)
+ mvc __LC_RETURN_PSW+8(8),BASED(cleanup_table_io_work_loop)
+ la %r12,__LC_RETURN_PSW
+ br %r14
+
+cleanup_io_leave:
+ clc 8(8,%r12),BASED(cleanup_io_leave_insn)
+ je 2f
+#ifdef CONFIG_VIRT_CPU_ACCOUNTING
+ mvc __LC_EXIT_TIMER(8),__LC_ASYNC_ENTER_TIMER
+ clc 8(8,%r12),BASED(cleanup_io_leave_insn+8)
+ je 2f
+#endif
+ mvc __LC_RETURN_PSW(16),SP_PSW(%r15)
+ cghi %r12,__LC_MCK_OLD_PSW
+ jne 0f
+ mvc __LC_SAVE_AREA+64(32),SP_R12(%r15)
+ j 1f
+0: mvc __LC_SAVE_AREA+32(32),SP_R12(%r15)
+1: lmg %r0,%r11,SP_R0(%r15)
+ lg %r15,SP_R15(%r15)
+2: la %r12,__LC_RETURN_PSW
+ br %r14
+cleanup_io_leave_insn:
+#ifdef CONFIG_VIRT_CPU_ACCOUNTING
+ .quad io_leave + 20
+#endif
+ .quad io_leave + 16
+
/*
* Integer constants
*/
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 8ca485676780..2fd75da15495 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -139,10 +139,7 @@ int do_settimeofday(struct timespec *tv)
set_normalized_timespec(&xtime, sec, nsec);
set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
- time_adjust = 0; /* stop active adjtime() */
- time_status |= STA_UNSYNC;
- time_maxerror = NTP_PHASE_LIMIT;
- time_esterror = NTP_PHASE_LIMIT;
+ ntp_clear();
write_sequnlock_irq(&xtime_lock);
clock_was_set();
return 0;
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