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[S390] irq change improvements. 

Remove the last few places where a pointer to pt_regs gets passed.
Also make sure we call set_irq_regs() before irq_enter() and after
irq_exit(). This doesn't fix anything but makes sure s390 looks the
same like all other architectures.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens 2006-10-11 15:31:26 +02:00 committed by Martin Schwidefsky
parent 53a5fbdc2d
commit 9d0a57cbdb
5 changed files with 10 additions and 10 deletions
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2
arch/s390/appldata/appldata_base.c
View File

@ -109,7 +109,7 @@ static LIST_HEAD(appldata_ops_list);
* *
* schedule work and reschedule timer * schedule work and reschedule timer
*/ */
static void appldata_timer_function(unsigned long data, struct pt_regs *regs) static void appldata_timer_function(unsigned long data)
{ {
P_DEBUG(" -= Timer =-\n"); P_DEBUG(" -= Timer =-\n");
P_DEBUG("CPU: %i, expire_count: %i\n", smp_processor_id(), P_DEBUG("CPU: %i, expire_count: %i\n", smp_processor_id(),

4
arch/s390/kernel/s390_ext.c
View File

@ -117,8 +117,8 @@ void do_extint(struct pt_regs *regs, unsigned short code)
int index; int index;
struct pt_regs *old_regs; struct pt_regs *old_regs;
irq_enter();
old_regs = set_irq_regs(regs); old_regs = set_irq_regs(regs);
irq_enter();
asm volatile ("mc 0,0"); asm volatile ("mc 0,0");
if (S390_lowcore.int_clock >= S390_lowcore.jiffy_timer) if (S390_lowcore.int_clock >= S390_lowcore.jiffy_timer)
/** /**
@ -134,8 +134,8 @@ void do_extint(struct pt_regs *regs, unsigned short code)
p->handler(code); p->handler(code);
} }
} }
set_irq_regs(old_regs);
irq_exit(); irq_exit();
set_irq_regs(old_regs);
} }
EXPORT_SYMBOL(register_external_interrupt); EXPORT_SYMBOL(register_external_interrupt);

8
arch/s390/kernel/vtime.c
View File

@ -209,11 +209,11 @@ static void list_add_sorted(struct vtimer_list *timer, struct list_head *head)
* Do the callback functions of expired vtimer events. * Do the callback functions of expired vtimer events.
* Called from within the interrupt handler. * Called from within the interrupt handler.
*/ */
static void do_callbacks(struct list_head *cb_list, struct pt_regs *regs) static void do_callbacks(struct list_head *cb_list)
{ {
struct vtimer_queue *vt_list; struct vtimer_queue *vt_list;
struct vtimer_list *event, *tmp; struct vtimer_list *event, *tmp;
void (*fn)(unsigned long, struct pt_regs*); void (*fn)(unsigned long);
unsigned long data; unsigned long data;
if (list_empty(cb_list)) if (list_empty(cb_list))
@ -224,7 +224,7 @@ static void do_callbacks(struct list_head *cb_list, struct pt_regs *regs)
list_for_each_entry_safe(event, tmp, cb_list, entry) { list_for_each_entry_safe(event, tmp, cb_list, entry) {
fn = event->function; fn = event->function;
data = event->data; data = event->data;
fn(data, regs); fn(data);
if (!event->interval) if (!event->interval)
/* delete one shot timer */ /* delete one shot timer */
@ -275,7 +275,7 @@ static void do_cpu_timer_interrupt(__u16 error_code)
list_move_tail(&event->entry, &cb_list); list_move_tail(&event->entry, &cb_list);
} }
spin_unlock(&vt_list->lock); spin_unlock(&vt_list->lock);
do_callbacks(&cb_list, get_irq_regs()); do_callbacks(&cb_list);
/* next event is first in list */ /* next event is first in list */
spin_lock(&vt_list->lock); spin_lock(&vt_list->lock);

4
drivers/s390/cio/cio.c
View File

@ -609,8 +609,8 @@ do_IRQ (struct pt_regs *regs)
struct irb *irb; struct irb *irb;
struct pt_regs *old_regs; struct pt_regs *old_regs;
irq_enter ();
old_regs = set_irq_regs(regs); old_regs = set_irq_regs(regs);
irq_enter();
asm volatile ("mc 0,0"); asm volatile ("mc 0,0");
if (S390_lowcore.int_clock >= S390_lowcore.jiffy_timer) if (S390_lowcore.int_clock >= S390_lowcore.jiffy_timer)
/** /**
@ -655,8 +655,8 @@ do_IRQ (struct pt_regs *regs)
* out of the sie which costs more cycles than it saves. * out of the sie which costs more cycles than it saves.
*/ */
} while (!MACHINE_IS_VM && tpi (NULL) != 0); } while (!MACHINE_IS_VM && tpi (NULL) != 0);
irq_exit();
set_irq_regs(old_regs); set_irq_regs(old_regs);
irq_exit ();
} }
#ifdef CONFIG_CCW_CONSOLE #ifdef CONFIG_CCW_CONSOLE

2
include/asm-s390/timer.h
View File

@ -26,7 +26,7 @@ struct vtimer_list {
spinlock_t lock; spinlock_t lock;
unsigned long magic; unsigned long magic;
void (*function)(unsigned long, struct pt_regs*); void (*function)(unsigned long);
unsigned long data; unsigned long data;
}; };