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ARM: 7571/1: SMP: add function arch_send_wakeup_ipi_mask() 

Add function arch_send_wakeup_ipi_mask(), so that platform code can
use it as an easy way to wake up cores that are in WFI.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Shawn Guo 2012-11-06 03:48:40 +01:00 committed by Russell King
parent ee951c630c
commit b62655f4c6
2 changed files with 6 additions and 0 deletions
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1
arch/arm/include/asm/smp.h
View File

@ -79,6 +79,7 @@ extern void cpu_die(void);
extern void arch_send_call_function_single_ipi(int cpu);
extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
extern void arch_send_wakeup_ipi_mask(const struct cpumask *mask);
struct smp_operations {
#ifdef CONFIG_SMP

5
arch/arm/kernel/smp.c
View File

@ -415,6 +415,11 @@ void arch_send_call_function_ipi_mask(const struct cpumask *mask)
smp_cross_call(mask, IPI_CALL_FUNC);
}
void arch_send_wakeup_ipi_mask(const struct cpumask *mask)
{
smp_cross_call(mask, IPI_WAKEUP);
}
void arch_send_call_function_single_ipi(int cpu)
{
smp_cross_call(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE);