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-rw-r--r--arch/s390/kernel/s390_ext.c9
-rw-r--r--arch/s390/kernel/smp.c2
-rw-r--r--arch/s390/kernel/time.c15
-rw-r--r--arch/s390/kernel/traps.c2
-rw-r--r--arch/s390/kernel/vtime.c5
-rw-r--r--arch/s390/mm/fault.c2
6 files changed, 21 insertions, 14 deletions
diff --git a/arch/s390/kernel/s390_ext.c b/arch/s390/kernel/s390_ext.c
index c1b383537fec..c49ab8c784d2 100644
--- a/arch/s390/kernel/s390_ext.c
+++ b/arch/s390/kernel/s390_ext.c
@@ -16,6 +16,7 @@
16 16
17#include <asm/lowcore.h> 17#include <asm/lowcore.h>
18#include <asm/s390_ext.h> 18#include <asm/s390_ext.h>
19#include <asm/irq_regs.h>
19#include <asm/irq.h> 20#include <asm/irq.h>
20 21
21/* 22/*
@@ -114,26 +115,28 @@ void do_extint(struct pt_regs *regs, unsigned short code)
114{ 115{
115 ext_int_info_t *p; 116 ext_int_info_t *p;
116 int index; 117 int index;
118 struct pt_regs *old_regs;
117 119
118 irq_enter(); 120 irq_enter();
121 old_regs = set_irq_regs(regs);
119 asm volatile ("mc 0,0"); 122 asm volatile ("mc 0,0");
120 if (S390_lowcore.int_clock >= S390_lowcore.jiffy_timer) 123 if (S390_lowcore.int_clock >= S390_lowcore.jiffy_timer)
121 /** 124 /**
122 * Make sure that the i/o interrupt did not "overtake" 125 * Make sure that the i/o interrupt did not "overtake"
123 * the last HZ timer interrupt. 126 * the last HZ timer interrupt.
124 */ 127 */
125 account_ticks(regs); 128 account_ticks();
126 kstat_cpu(smp_processor_id()).irqs[EXTERNAL_INTERRUPT]++; 129 kstat_cpu(smp_processor_id()).irqs[EXTERNAL_INTERRUPT]++;
127 index = ext_hash(code); 130 index = ext_hash(code);
128 for (p = ext_int_hash[index]; p; p = p->next) { 131 for (p = ext_int_hash[index]; p; p = p->next) {
129 if (likely(p->code == code)) { 132 if (likely(p->code == code)) {
130 if (likely(p->handler)) 133 if (likely(p->handler))
131 p->handler(regs, code); 134 p->handler(code);
132 } 135 }
133 } 136 }
137 set_irq_regs(old_regs);
134 irq_exit(); 138 irq_exit();
135} 139}
136 140
137EXPORT_SYMBOL(register_external_interrupt); 141EXPORT_SYMBOL(register_external_interrupt);
138EXPORT_SYMBOL(unregister_external_interrupt); 142EXPORT_SYMBOL(unregister_external_interrupt);
139
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index a8e6199755d4..62822245f9be 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -339,7 +339,7 @@ void machine_power_off_smp(void)
339 * cpus are handled. 339 * cpus are handled.
340 */ 340 */
341 341
342void do_ext_call_interrupt(struct pt_regs *regs, __u16 code) 342void do_ext_call_interrupt(__u16 code)
343{ 343{
344 unsigned long bits; 344 unsigned long bits;
345 345
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 4bf66cc4a267..2c8c690688cb 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -34,6 +34,7 @@
34#include <asm/s390_ext.h> 34#include <asm/s390_ext.h>
35#include <asm/div64.h> 35#include <asm/div64.h>
36#include <asm/irq.h> 36#include <asm/irq.h>
37#include <asm/irq_regs.h>
37#include <asm/timer.h> 38#include <asm/timer.h>
38 39
39/* change this if you have some constant time drift */ 40/* change this if you have some constant time drift */
@@ -150,9 +151,9 @@ EXPORT_SYMBOL(do_settimeofday);
150 151
151 152
152#ifdef CONFIG_PROFILING 153#ifdef CONFIG_PROFILING
153#define s390_do_profile(regs) profile_tick(CPU_PROFILING, regs) 154#define s390_do_profile() profile_tick(CPU_PROFILING)
154#else 155#else
155#define s390_do_profile(regs) do { ; } while(0) 156#define s390_do_profile() do { ; } while(0)
156#endif /* CONFIG_PROFILING */ 157#endif /* CONFIG_PROFILING */
157 158
158 159
@@ -160,7 +161,7 @@ EXPORT_SYMBOL(do_settimeofday);
160 * timer_interrupt() needs to keep up the real-time clock, 161 * timer_interrupt() needs to keep up the real-time clock,
161 * as well as call the "do_timer()" routine every clocktick 162 * as well as call the "do_timer()" routine every clocktick
162 */ 163 */
163void account_ticks(struct pt_regs *regs) 164void account_ticks(void)
164{ 165{
165 __u64 tmp; 166 __u64 tmp;
166 __u32 ticks; 167 __u32 ticks;
@@ -221,10 +222,10 @@ void account_ticks(struct pt_regs *regs)
221 account_tick_vtime(current); 222 account_tick_vtime(current);
222#else 223#else
223 while (ticks--) 224 while (ticks--)
224 update_process_times(user_mode(regs)); 225 update_process_times(user_mode(get_irq_regs()));
225#endif 226#endif
226 227
227 s390_do_profile(regs); 228 s390_do_profile();
228} 229}
229 230
230#ifdef CONFIG_NO_IDLE_HZ 231#ifdef CONFIG_NO_IDLE_HZ
@@ -285,9 +286,11 @@ static inline void stop_hz_timer(void)
285 */ 286 */
286static inline void start_hz_timer(void) 287static inline void start_hz_timer(void)
287{ 288{
289 BUG_ON(!in_interrupt());
290
288 if (!cpu_isset(smp_processor_id(), nohz_cpu_mask)) 291 if (!cpu_isset(smp_processor_id(), nohz_cpu_mask))
289 return; 292 return;
290 account_ticks(task_pt_regs(current)); 293 account_ticks();
291 cpu_clear(smp_processor_id(), nohz_cpu_mask); 294 cpu_clear(smp_processor_id(), nohz_cpu_mask);
292} 295}
293 296
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index 3eb4fab048b8..05bf3cc8530a 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -61,7 +61,7 @@ extern pgm_check_handler_t do_dat_exception;
61#ifdef CONFIG_PFAULT 61#ifdef CONFIG_PFAULT
62extern int pfault_init(void); 62extern int pfault_init(void);
63extern void pfault_fini(void); 63extern void pfault_fini(void);
64extern void pfault_interrupt(struct pt_regs *regs, __u16 error_code); 64extern void pfault_interrupt(__u16 error_code);
65static ext_int_info_t ext_int_pfault; 65static ext_int_info_t ext_int_pfault;
66#endif 66#endif
67extern pgm_check_handler_t do_monitor_call; 67extern pgm_check_handler_t do_monitor_call;
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 2306cd83fca1..1d7d3938b2b1 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -22,6 +22,7 @@
22 22
23#include <asm/s390_ext.h> 23#include <asm/s390_ext.h>
24#include <asm/timer.h> 24#include <asm/timer.h>
25#include <asm/irq_regs.h>
25 26
26static ext_int_info_t ext_int_info_timer; 27static ext_int_info_t ext_int_info_timer;
27DEFINE_PER_CPU(struct vtimer_queue, virt_cpu_timer); 28DEFINE_PER_CPU(struct vtimer_queue, virt_cpu_timer);
@@ -241,7 +242,7 @@ static void do_callbacks(struct list_head *cb_list, struct pt_regs *regs)
241/* 242/*
242 * Handler for the virtual CPU timer. 243 * Handler for the virtual CPU timer.
243 */ 244 */
244static void do_cpu_timer_interrupt(struct pt_regs *regs, __u16 error_code) 245static void do_cpu_timer_interrupt(__u16 error_code)
245{ 246{
246 int cpu; 247 int cpu;
247 __u64 next, delta; 248 __u64 next, delta;
@@ -274,7 +275,7 @@ static void do_cpu_timer_interrupt(struct pt_regs *regs, __u16 error_code)
274 list_move_tail(&event->entry, &cb_list); 275 list_move_tail(&event->entry, &cb_list);
275 } 276 }
276 spin_unlock(&vt_list->lock); 277 spin_unlock(&vt_list->lock);
277 do_callbacks(&cb_list, regs); 278 do_callbacks(&cb_list, get_irq_regs());
278 279
279 /* next event is first in list */ 280 /* next event is first in list */
280 spin_lock(&vt_list->lock); 281 spin_lock(&vt_list->lock);
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 9c3c19fe62fc..1c323bbfda91 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -451,7 +451,7 @@ void pfault_fini(void)
451} 451}
452 452
453asmlinkage void 453asmlinkage void
454pfault_interrupt(struct pt_regs *regs, __u16 error_code) 454pfault_interrupt(__u16 error_code)
455{ 455{
456 struct task_struct *tsk; 456 struct task_struct *tsk;
457 __u16 subcode; 457 __u16 subcode;