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[S390] cleanup lowcore access from external interrupts

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Read external interrupts parameters from the lowcore in the first
level interrupt handler in entry[64].S.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Martin Schwidefsky
2010-10-25 16:10:38 +02:00
committed by Martin Schwidefsky
parent 1e54622e04
commit f6649a7e5a
15 changed files with 57 additions and 49 deletions
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9
arch/s390/kernel/s390_ext.c
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@@ -113,12 +113,15 @@ int unregister_early_external_interrupt(__u16 code, ext_int_handler_t handler,
return 0;
}
void __irq_entry do_extint(struct pt_regs *regs, unsigned short code)
void __irq_entry do_extint(struct pt_regs *regs, unsigned int ext_int_code,
unsigned int param32, unsigned long param64)
{
struct pt_regs *old_regs;
unsigned short code;
ext_int_info_t *p;
int index;
struct pt_regs *old_regs;
code = (unsigned short) ext_int_code;
old_regs = set_irq_regs(regs);
s390_idle_check(regs, S390_lowcore.int_clock,
S390_lowcore.async_enter_timer);
@@ -132,7 +135,7 @@ void __irq_entry do_extint(struct pt_regs *regs, unsigned short code)
index = ext_hash(code);
for (p = ext_int_hash[index]; p; p = p->next) {
if (likely(p->code == code))
p->handler(code);
p->handler(ext_int_code, param32, param64);
}
irq_exit();
set_irq_regs(old_regs);