diff options
Diffstat (limited to 'arch/powerpc/platforms/cell/interrupt.c')
| -rw-r--r-- | arch/powerpc/platforms/cell/interrupt.c | 43 |
1 files changed, 18 insertions, 25 deletions
diff --git a/arch/powerpc/platforms/cell/interrupt.c b/arch/powerpc/platforms/cell/interrupt.c index 44cfd1bef89..3e4eba603e6 100644 --- a/arch/powerpc/platforms/cell/interrupt.c +++ b/arch/powerpc/platforms/cell/interrupt.c @@ -176,14 +176,14 @@ EXPORT_SYMBOL_GPL(iic_get_target_id); #ifdef CONFIG_SMP /* Use the highest interrupt priorities for IPI */ -static inline int iic_ipi_to_irq(int ipi) +static inline int iic_msg_to_irq(int msg) { - return IIC_IRQ_TYPE_IPI + 0xf - ipi; + return IIC_IRQ_TYPE_IPI + 0xf - msg; } -void iic_cause_IPI(int cpu, int mesg) +void iic_message_pass(int cpu, int msg) { - out_be64(&per_cpu(cpu_iic, cpu).regs->generate, (0xf - mesg) << 4); + out_be64(&per_cpu(cpu_iic, cpu).regs->generate, (0xf - msg) << 4); } struct irq_host *iic_get_irq_host(int node) @@ -192,38 +192,31 @@ struct irq_host *iic_get_irq_host(int node) } EXPORT_SYMBOL_GPL(iic_get_irq_host); -static irqreturn_t iic_ipi_action(int irq, void *dev_id) -{ - int ipi = (int)(long)dev_id; - - smp_message_recv(ipi); - - return IRQ_HANDLED; -} -static void iic_request_ipi(int ipi, const char *name) +static void iic_request_ipi(int msg) { int virq; - virq = irq_create_mapping(iic_host, iic_ipi_to_irq(ipi)); + virq = irq_create_mapping(iic_host, iic_msg_to_irq(msg)); if (virq == NO_IRQ) { printk(KERN_ERR - "iic: failed to map IPI %s\n", name); + "iic: failed to map IPI %s\n", smp_ipi_name[msg]); return; } - if (request_irq(virq, iic_ipi_action, IRQF_DISABLED, name, - (void *)(long)ipi)) - printk(KERN_ERR - "iic: failed to request IPI %s\n", name); + + /* + * If smp_request_message_ipi encounters an error it will notify + * the error. If a message is not needed it will return non-zero. + */ + if (smp_request_message_ipi(virq, msg)) + irq_dispose_mapping(virq); } void iic_request_IPIs(void) { - iic_request_ipi(PPC_MSG_CALL_FUNCTION, "IPI-call"); - iic_request_ipi(PPC_MSG_RESCHEDULE, "IPI-resched"); - iic_request_ipi(PPC_MSG_CALL_FUNC_SINGLE, "IPI-call-single"); -#ifdef CONFIG_DEBUGGER - iic_request_ipi(PPC_MSG_DEBUGGER_BREAK, "IPI-debug"); -#endif /* CONFIG_DEBUGGER */ + iic_request_ipi(PPC_MSG_CALL_FUNCTION); + iic_request_ipi(PPC_MSG_RESCHEDULE); + iic_request_ipi(PPC_MSG_CALL_FUNC_SINGLE); + iic_request_ipi(PPC_MSG_DEBUGGER_BREAK); } #endif /* CONFIG_SMP */ |