diff options
| -rw-r--r-- | arch/arm64/include/asm/hardirq.h | 2 | ||||
| -rw-r--r-- | arch/arm64/include/asm/smp.h | 1 | ||||
| -rw-r--r-- | arch/arm64/kernel/smp.c | 9 |
3 files changed, 11 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/hardirq.h b/arch/arm64/include/asm/hardirq.h index ae4801d7751..0be67821f9c 100644 --- a/arch/arm64/include/asm/hardirq.h +++ b/arch/arm64/include/asm/hardirq.h @@ -20,7 +20,7 @@ #include <linux/threads.h> #include <asm/irq.h> -#define NR_IPI 5 +#define NR_IPI 6 typedef struct { unsigned int __softirq_pending; diff --git a/arch/arm64/include/asm/smp.h b/arch/arm64/include/asm/smp.h index a498f2cd2c2..e2924264a29 100644 --- a/arch/arm64/include/asm/smp.h +++ b/arch/arm64/include/asm/smp.h @@ -64,6 +64,7 @@ extern void secondary_entry(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); extern int __cpu_disable(void); diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index c5b601a2f11..d7669c3e4ee 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -62,6 +62,7 @@ enum ipi_msg_type { IPI_CALL_FUNC_SINGLE, IPI_CPU_STOP, IPI_TIMER, + IPI_WAKEUP, }; /* @@ -441,6 +442,11 @@ void arch_send_call_function_single_ipi(int cpu) smp_cross_call(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE); } +void arch_send_wakeup_ipi_mask(const struct cpumask *mask) +{ + smp_cross_call(mask, IPI_WAKEUP); +} + static const char *ipi_types[NR_IPI] = { #define S(x,s) [x - IPI_RESCHEDULE] = s S(IPI_RESCHEDULE, "Rescheduling interrupts"), @@ -448,6 +454,7 @@ static const char *ipi_types[NR_IPI] = { S(IPI_CALL_FUNC_SINGLE, "Single function call interrupts"), S(IPI_CPU_STOP, "CPU stop interrupts"), S(IPI_TIMER, "Timer broadcast interrupts"), + S(IPI_WAKEUP, "CPU wakeup interrupts"), }; void show_ipi_list(struct seq_file *p, int prec) @@ -540,6 +547,8 @@ void handle_IPI(int ipinr, struct pt_regs *regs) irq_exit(); break; #endif + case IPI_WAKEUP: + break; default: pr_crit("CPU%u: Unknown IPI message 0x%x\n", cpu, ipinr); |