diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2008-08-06 18:21:03 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-09-08 10:35:03 +0900 |
| commit | 6f52707e6882eb3bc6920c3f59beb05d23d68354 (patch) | |
| tree | c64ee09a4d2d6169d28daea1f3737d002ffc1402 /arch/sh | |
| parent | c7936b9abcf5e043e73f183a37e81787f6178dd0 (diff) | |
sh: smp: Hook up a timer IPI stub.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/include/asm/smp.h | 19 | ||||
| -rw-r--r-- | arch/sh/kernel/smp.c | 18 |
2 files changed, 31 insertions, 6 deletions
diff --git a/arch/sh/include/asm/smp.h b/arch/sh/include/asm/smp.h index 5ebe0d09559..9d22cda67c2 100644 --- a/arch/sh/include/asm/smp.h +++ b/arch/sh/include/asm/smp.h @@ -21,19 +21,26 @@ extern int __cpu_number_map[NR_CPUS]; extern int __cpu_logical_map[NR_CPUS]; #define cpu_logical_map(cpu) __cpu_logical_map[cpu] -#define SMP_MSG_FUNCTION 0 -#define SMP_MSG_RESCHEDULE 1 -#define SMP_MSG_FUNCTION_SINGLE 2 -#define SMP_MSG_NR 3 +enum { + SMP_MSG_FUNCTION, + SMP_MSG_RESCHEDULE, + SMP_MSG_FUNCTION_SINGLE, + SMP_MSG_TIMER, + + SMP_MSG_NR, /* must be last */ +}; void smp_message_recv(unsigned int msg); +void smp_timer_broadcast(cpumask_t mask); + void plat_smp_setup(void); void plat_prepare_cpus(unsigned int max_cpus); int plat_smp_processor_id(void); void plat_start_cpu(unsigned int cpu, unsigned long entry_point); void plat_send_ipi(unsigned int cpu, unsigned int message); -extern void arch_send_call_function_single_ipi(int cpu); -extern void arch_send_call_function_ipi(cpumask_t mask); + +void arch_send_call_function_single_ipi(int cpu); +void arch_send_call_function_ipi(cpumask_t mask); #else diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c index ebfdd364544..9cb3734dbd4 100644 --- a/arch/sh/kernel/smp.c +++ b/arch/sh/kernel/smp.c @@ -184,6 +184,21 @@ void arch_send_call_function_single_ipi(int cpu) plat_send_ipi(cpu, SMP_MSG_FUNCTION_SINGLE); } +void smp_timer_broadcast(cpumask_t mask) +{ + int cpu; + + for_each_cpu_mask(cpu, mask) + plat_send_ipi(cpu, SMP_MSG_TIMER); +} + +static void ipi_timer(void) +{ + irq_enter(); + /* XXX ... */ + irq_exit(); +} + void smp_message_recv(unsigned int msg) { switch (msg) { @@ -195,6 +210,9 @@ void smp_message_recv(unsigned int msg) case SMP_MSG_FUNCTION_SINGLE: generic_smp_call_function_single_interrupt(); break; + case SMP_MSG_TIMER: + ipi_timer(); + break; default: printk(KERN_WARNING "SMP %d: %s(): unknown IPI %d\n", smp_processor_id(), __func__, msg); |