[PATCH 09/10] ARM: SMP: add function arch_send_wakeup_ipi_mask()
From: Shawn Guo <hidden>
Date: 2012-10-23 15:22:58
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
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 <redacted> Cc: Russell King <redacted> --- arch/arm/include/asm/smp.h | 1 + arch/arm/kernel/smp.c | 5 +++++ 2 files changed, 6 insertions(+)
diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h
index 2e3be16..d3a22be 100644
--- a/arch/arm/include/asm/smp.h
+++ b/arch/arm/include/asm/smp.h@@ -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
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 8e20754d..dd5dd02 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c@@ -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);
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1.7.9.5