sh: smp: Hook up a timer IPI stub.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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@ -21,19 +21,26 @@ extern int __cpu_number_map[NR_CPUS];
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extern int __cpu_logical_map[NR_CPUS];
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#define cpu_logical_map(cpu) __cpu_logical_map[cpu]
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#define SMP_MSG_FUNCTION 0
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#define SMP_MSG_RESCHEDULE 1
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#define SMP_MSG_FUNCTION_SINGLE 2
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#define SMP_MSG_NR 3
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enum {
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SMP_MSG_FUNCTION,
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SMP_MSG_RESCHEDULE,
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SMP_MSG_FUNCTION_SINGLE,
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SMP_MSG_TIMER,
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SMP_MSG_NR, /* must be last */
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};
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void smp_message_recv(unsigned int msg);
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void smp_timer_broadcast(cpumask_t mask);
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void plat_smp_setup(void);
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void plat_prepare_cpus(unsigned int max_cpus);
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int plat_smp_processor_id(void);
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void plat_start_cpu(unsigned int cpu, unsigned long entry_point);
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void plat_send_ipi(unsigned int cpu, unsigned int message);
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extern void arch_send_call_function_single_ipi(int cpu);
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extern void arch_send_call_function_ipi(cpumask_t mask);
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void arch_send_call_function_single_ipi(int cpu);
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void arch_send_call_function_ipi(cpumask_t mask);
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#else
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@ -184,6 +184,21 @@ void arch_send_call_function_single_ipi(int cpu)
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plat_send_ipi(cpu, SMP_MSG_FUNCTION_SINGLE);
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}
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void smp_timer_broadcast(cpumask_t mask)
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{
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int cpu;
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for_each_cpu_mask(cpu, mask)
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plat_send_ipi(cpu, SMP_MSG_TIMER);
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}
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static void ipi_timer(void)
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{
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irq_enter();
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/* XXX ... */
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irq_exit();
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}
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void smp_message_recv(unsigned int msg)
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{
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switch (msg) {
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@ -195,6 +210,9 @@ void smp_message_recv(unsigned int msg)
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case SMP_MSG_FUNCTION_SINGLE:
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generic_smp_call_function_single_interrupt();
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break;
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case SMP_MSG_TIMER:
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ipi_timer();
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break;
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default:
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printk(KERN_WARNING "SMP %d: %s(): unknown IPI %d\n",
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smp_processor_id(), __func__, msg);
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