diff options
| author | Jiang Liu <jiang.liu@linux.intel.com> | 2015-01-23 05:36:42 +0000 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2015-01-23 18:06:47 +0000 |
| commit | 0aaf0dae81b586134faeb52e28b7ad567629dd68 (patch) | |
| tree | af110bdf2ead94f7a9f9f921f1157fbdd056348f /arch/arm64 | |
| parent | 2d888f48e056119495847a269a435d5c3d9df349 (diff) | |
| download | linux-0aaf0dae81b586134faeb52e28b7ad567629dd68.tar.bz2 | |
smp, ARM64: Kill SMP single function call interrupt
Commit 9a46ad6d6df3b54 "smp: make smp_call_function_many() use logic
similar to smp_call_function_single()" has unified the way to handle
single and multiple cross-CPU function calls. Now only one interrupt
is needed for architecture specific code to support generic SMP function
call interfaces, so kill the redundant single function call interrupt.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/asm/hardirq.h | 2 | ||||
| -rw-r--r-- | arch/arm64/kernel/smp.c | 10 |
2 files changed, 2 insertions, 10 deletions
diff --git a/arch/arm64/include/asm/hardirq.h b/arch/arm64/include/asm/hardirq.h index e8a3268a891c..6aae421f4d73 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 6 +#define NR_IPI 5 typedef struct { unsigned int __softirq_pending; diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index 7ae6ee085261..328b8ce4b007 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -65,7 +65,6 @@ struct secondary_data secondary_data; enum ipi_msg_type { IPI_RESCHEDULE, IPI_CALL_FUNC, - IPI_CALL_FUNC_SINGLE, IPI_CPU_STOP, IPI_TIMER, IPI_IRQ_WORK, @@ -483,7 +482,6 @@ static const char *ipi_types[NR_IPI] __tracepoint_string = { #define S(x,s) [x] = s S(IPI_RESCHEDULE, "Rescheduling interrupts"), S(IPI_CALL_FUNC, "Function call interrupts"), - S(IPI_CALL_FUNC_SINGLE, "Single function call interrupts"), S(IPI_CPU_STOP, "CPU stop interrupts"), S(IPI_TIMER, "Timer broadcast interrupts"), S(IPI_IRQ_WORK, "IRQ work interrupts"), @@ -527,7 +525,7 @@ void arch_send_call_function_ipi_mask(const struct cpumask *mask) void arch_send_call_function_single_ipi(int cpu) { - smp_cross_call(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE); + smp_cross_call(cpumask_of(cpu), IPI_CALL_FUNC); } #ifdef CONFIG_IRQ_WORK @@ -585,12 +583,6 @@ void handle_IPI(int ipinr, struct pt_regs *regs) irq_exit(); break; - case IPI_CALL_FUNC_SINGLE: - irq_enter(); - generic_smp_call_function_single_interrupt(); - irq_exit(); - break; - case IPI_CPU_STOP: irq_enter(); ipi_cpu_stop(cpu); |