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[ARM SMP] Add missing SMP timer handling for realview

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Until we have local timer support, we need to broadcast the
timer interrupt to the other CPUs.  Also, add the missing
smp_send_timer() prototype to asm/smp.h

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2005-11-08 10:40:10 +00:00
committed by Russell King
parent f093182d31
commit dbebb4cbe0
2 changed files with 10 additions and 0 deletions
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5
arch/arm/mach-realview/core.c
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@@ -550,6 +550,11 @@ static irqreturn_t realview_timer_interrupt(int irq, void *dev_id, struct pt_reg
timer_tick(regs); timer_tick(regs);
#ifdef CONFIG_SMP
smp_send_timer();
update_process_times(user_mode(regs));
#endif
write_sequnlock(&xtime_lock); write_sequnlock(&xtime_lock);
return IRQ_HANDLED; return IRQ_HANDLED;

5
include/asm-arm/smp.h
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@@ -46,6 +46,11 @@ extern void smp_store_cpu_info(unsigned int cpuid);
*/ */
extern void smp_cross_call(cpumask_t callmap); extern void smp_cross_call(cpumask_t callmap);
/*
* Broadcast a timer interrupt to the other CPUs.
*/
extern void smp_send_timer(void);
/* /*
* Boot a secondary CPU, and assign it the specified idle task. * Boot a secondary CPU, and assign it the specified idle task.
* This also gives us the initial stack to use for this CPU. * This also gives us the initial stack to use for this CPU.