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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
-rw-r--r--drivers/s390/block/dasd_diag.c2
-rw-r--r--drivers/s390/char/ctrlchar.c2
-rw-r--r--drivers/s390/char/keyboard.c2
-rw-r--r--drivers/s390/char/sclp.c4
-rw-r--r--drivers/s390/cio/cio.c6
-rw-r--r--drivers/s390/net/iucv.c4
-rw-r--r--include/asm-s390/hardirq.h2
-rw-r--r--include/asm-s390/irq_regs.h1
-rw-r--r--include/asm-s390/s390_ext.h2
15 files changed, 36 insertions, 24 deletions
diff --git a/arch/s390/kernel/s390_ext.c b/arch/s390/kernel/s390_ext.c
index c1b3835..c49ab8c 100644
--- a/arch/s390/kernel/s390_ext.c
+++ b/arch/s390/kernel/s390_ext.c
@@ -16,6 +16,7 @@
#include <asm/lowcore.h>
#include <asm/s390_ext.h>
+#include <asm/irq_regs.h>
#include <asm/irq.h>
/*
@@ -114,26 +115,28 @@ void do_extint(struct pt_regs *regs, unsigned short code)
{
ext_int_info_t *p;
int index;
+ struct pt_regs *old_regs;
irq_enter();
+ old_regs = set_irq_regs(regs);
asm volatile ("mc 0,0");
if (S390_lowcore.int_clock >= S390_lowcore.jiffy_timer)
/**
* Make sure that the i/o interrupt did not "overtake"
* the last HZ timer interrupt.
*/
- account_ticks(regs);
+ account_ticks();
kstat_cpu(smp_processor_id()).irqs[EXTERNAL_INTERRUPT]++;
index = ext_hash(code);
for (p = ext_int_hash[index]; p; p = p->next) {
if (likely(p->code == code)) {
if (likely(p->handler))
- p->handler(regs, code);
+ p->handler(code);
}
}
+ set_irq_regs(old_regs);
irq_exit();
}
EXPORT_SYMBOL(register_external_interrupt);
EXPORT_SYMBOL(unregister_external_interrupt);
-
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index a8e6199..6282224 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -339,7 +339,7 @@ void machine_power_off_smp(void)
* cpus are handled.
*/
-void do_ext_call_interrupt(struct pt_regs *regs, __u16 code)
+void do_ext_call_interrupt(__u16 code)
{
unsigned long bits;
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 4bf66cc..2c8c690 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -34,6 +34,7 @@
#include <asm/s390_ext.h>
#include <asm/div64.h>
#include <asm/irq.h>
+#include <asm/irq_regs.h>
#include <asm/timer.h>
/* change this if you have some constant time drift */
@@ -150,9 +151,9 @@ EXPORT_SYMBOL(do_settimeofday);
#ifdef CONFIG_PROFILING
-#define s390_do_profile(regs) profile_tick(CPU_PROFILING, regs)
+#define s390_do_profile() profile_tick(CPU_PROFILING)
#else
-#define s390_do_profile(regs) do { ; } while(0)
+#define s390_do_profile() do { ; } while(0)
#endif /* CONFIG_PROFILING */
@@ -160,7 +161,7 @@ EXPORT_SYMBOL(do_settimeofday);
* timer_interrupt() needs to keep up the real-time clock,
* as well as call the "do_timer()" routine every clocktick
*/
-void account_ticks(struct pt_regs *regs)
+void account_ticks(void)
{
__u64 tmp;
__u32 ticks;
@@ -221,10 +222,10 @@ void account_ticks(struct pt_regs *regs)
account_tick_vtime(current);
#else
while (ticks--)
- update_process_times(user_mode(regs));
+ update_process_times(user_mode(get_irq_regs()));
#endif
- s390_do_profile(regs);
+ s390_do_profile();
}
#ifdef CONFIG_NO_IDLE_HZ
@@ -285,9 +286,11 @@ static inline void stop_hz_timer(void)
*/
static inline void start_hz_timer(void)
{
+ BUG_ON(!in_interrupt());
+
if (!cpu_isset(smp_processor_id(), nohz_cpu_mask))
return;
- account_ticks(task_pt_regs(current));
+ account_ticks();
cpu_clear(smp_processor_id(), nohz_cpu_mask);
}
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index 3eb4fab..05bf3cc 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;
#ifdef CONFIG_PFAULT
extern int pfault_init(void);
extern void pfault_fini(void);
-extern void pfault_interrupt(struct pt_regs *regs, __u16 error_code);
+extern void pfault_interrupt(__u16 error_code);
static ext_int_info_t ext_int_pfault;
#endif
extern pgm_check_handler_t do_monitor_call;
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 2306cd8..1d7d393 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -22,6 +22,7 @@
#include <asm/s390_ext.h>
#include <asm/timer.h>
+#include <asm/irq_regs.h>
static ext_int_info_t ext_int_info_timer;
DEFINE_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)
/*
* Handler for the virtual CPU timer.
*/
-static void do_cpu_timer_interrupt(struct pt_regs *regs, __u16 error_code)
+static void do_cpu_timer_interrupt(__u16 error_code)
{
int cpu;
__u64 next, delta;
@@ -274,7 +275,7 @@ static void do_cpu_timer_interrupt(struct pt_regs *regs, __u16 error_code)
list_move_tail(&event->entry, &cb_list);
}
spin_unlock(&vt_list->lock);
- do_callbacks(&cb_list, regs);
+ do_callbacks(&cb_list, get_irq_regs());
/* next event is first in list */
spin_lock(&vt_list->lock);
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 9c3c19f..1c323bb 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -451,7 +451,7 @@ void pfault_fini(void)
}
asmlinkage void
-pfault_interrupt(struct pt_regs *regs, __u16 error_code)
+pfault_interrupt(__u16 error_code)
{
struct task_struct *tsk;
__u16 subcode;
diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c
index 222a8a7..53db58a 100644
--- a/drivers/s390/block/dasd_diag.c
+++ b/drivers/s390/block/dasd_diag.c
@@ -218,7 +218,7 @@ dasd_diag_term_IO(struct dasd_ccw_req * cqr)
/* Handle external interruption. */
static void
-dasd_ext_handler(struct pt_regs *regs, __u16 code)
+dasd_ext_handler(__u16 code)
{
struct dasd_ccw_req *cqr, *next;
struct dasd_device *device;
diff --git a/drivers/s390/char/ctrlchar.c b/drivers/s390/char/ctrlchar.c
index d83eb63..49e9628 100644
--- a/drivers/s390/char/ctrlchar.c
+++ b/drivers/s390/char/ctrlchar.c
@@ -20,7 +20,7 @@ static int ctrlchar_sysrq_key;
static void
ctrlchar_handle_sysrq(void *tty)
{
- handle_sysrq(ctrlchar_sysrq_key, NULL, (struct tty_struct *) tty);
+ handle_sysrq(ctrlchar_sysrq_key, (struct tty_struct *) tty);
}
static DECLARE_WORK(ctrlchar_work, ctrlchar_handle_sysrq, NULL);
diff --git a/drivers/s390/char/keyboard.c b/drivers/s390/char/keyboard.c
index 3be0656..e3491a5 100644
--- a/drivers/s390/char/keyboard.c
+++ b/drivers/s390/char/keyboard.c
@@ -304,7 +304,7 @@ kbd_keycode(struct kbd_data *kbd, unsigned int keycode)
if (kbd->sysrq) {
if (kbd->sysrq == K(KT_LATIN, '-')) {
kbd->sysrq = 0;
- handle_sysrq(value, NULL, kbd->tty);
+ handle_sysrq(value, kbd->tty);
return;
}
if (value == '-') {
diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c
index 31e33575..8a056df 100644
--- a/drivers/s390/char/sclp.c
+++ b/drivers/s390/char/sclp.c
@@ -324,7 +324,7 @@ __sclp_find_req(u32 sccb)
* Prepare read event data request if necessary. Start processing of next
* request on queue. */
static void
-sclp_interrupt_handler(struct pt_regs *regs, __u16 code)
+sclp_interrupt_handler(__u16 code)
{
struct sclp_req *req;
u32 finished_sccb;
@@ -743,7 +743,7 @@ EXPORT_SYMBOL(sclp_reactivate);
/* Handler for external interruption used during initialization. Modify
* request state to done. */
static void
-sclp_check_handler(struct pt_regs *regs, __u16 code)
+sclp_check_handler(__u16 code)
{
u32 finished_sccb;
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index 2e2882d..f18b162 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -19,6 +19,7 @@
#include <asm/cio.h>
#include <asm/delay.h>
#include <asm/irq.h>
+#include <asm/irq_regs.h>
#include <asm/setup.h>
#include "airq.h"
#include "cio.h"
@@ -606,15 +607,17 @@ do_IRQ (struct pt_regs *regs)
struct tpi_info *tpi_info;
struct subchannel *sch;
struct irb *irb;
+ struct pt_regs *old_regs;
irq_enter ();
+ old_regs = set_irq_regs(regs);
asm volatile ("mc 0,0");
if (S390_lowcore.int_clock >= S390_lowcore.jiffy_timer)
/**
* Make sure that the i/o interrupt did not "overtake"
* the last HZ timer interrupt.
*/
- account_ticks(regs);
+ account_ticks();
/*
* Get interrupt information from lowcore
*/
@@ -652,6 +655,7 @@ do_IRQ (struct pt_regs *regs)
* out of the sie which costs more cycles than it saves.
*/
} while (!MACHINE_IS_VM && tpi (NULL) != 0);
+ set_irq_regs(old_regs);
irq_exit ();
}
diff --git a/drivers/s390/net/iucv.c b/drivers/s390/net/iucv.c
index 809dd8d..1476ce2 100644
--- a/drivers/s390/net/iucv.c
+++ b/drivers/s390/net/iucv.c
@@ -116,7 +116,7 @@ static DEFINE_SPINLOCK(iucv_irq_queue_lock);
*Internal function prototypes
*/
static void iucv_tasklet_handler(unsigned long);
-static void iucv_irq_handler(struct pt_regs *, __u16);
+static void iucv_irq_handler(__u16);
static DECLARE_TASKLET(iucv_tasklet,iucv_tasklet_handler,0);
@@ -2251,7 +2251,7 @@ iucv_sever(__u16 pathid, __u8 user_data[16])
* Places the interrupt buffer on a queue and schedules iucv_tasklet_handler().
*/
static void
-iucv_irq_handler(struct pt_regs *regs, __u16 code)
+iucv_irq_handler(__u16 code)
{
iucv_irqdata *irqdata;
diff --git a/include/asm-s390/hardirq.h b/include/asm-s390/hardirq.h
index e84b7ef..c2f6a87 100644
--- a/include/asm-s390/hardirq.h
+++ b/include/asm-s390/hardirq.h
@@ -32,6 +32,6 @@ typedef struct {
#define HARDIRQ_BITS 8
-extern void account_ticks(struct pt_regs *);
+extern void account_ticks(void);
#endif /* __ASM_HARDIRQ_H */
diff --git a/include/asm-s390/irq_regs.h b/include/asm-s390/irq_regs.h
new file mode 100644
index 0000000..3dd9c0b
--- /dev/null
+++ b/include/asm-s390/irq_regs.h
@@ -0,0 +1 @@
+#include <asm-generic/irq_regs.h>
diff --git a/include/asm-s390/s390_ext.h b/include/asm-s390/s390_ext.h
index e9a2862..df9b101 100644
--- a/include/asm-s390/s390_ext.h
+++ b/include/asm-s390/s390_ext.h
@@ -10,7 +10,7 @@
* Martin Schwidefsky (schwidefsky@de.ibm.com)
*/
-typedef void (*ext_int_handler_t)(struct pt_regs *regs, __u16 code);
+typedef void (*ext_int_handler_t)(__u16 code);
/*
* Warning: if you change ext_int_info_t you have to change the
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