diff options
Diffstat (limited to 'arch/mips/sibyte/bcm1480/irq.c')
| -rw-r--r-- | arch/mips/sibyte/bcm1480/irq.c | 75 |
1 files changed, 41 insertions, 34 deletions
diff --git a/arch/mips/sibyte/bcm1480/irq.c b/arch/mips/sibyte/bcm1480/irq.c index 7aa79bf63c4..10299bafeab 100644 --- a/arch/mips/sibyte/bcm1480/irq.c +++ b/arch/mips/sibyte/bcm1480/irq.c @@ -452,6 +452,43 @@ static void bcm1480_kgdb_interrupt(void) extern void bcm1480_mailbox_interrupt(void); +static inline void dispatch_ip4(void) +{ + int cpu = smp_processor_id(); + int irq = K_BCM1480_INT_TIMER_0 + cpu; + + /* Reset the timer */ + __raw_writeq(M_SCD_TIMER_ENABLE|M_SCD_TIMER_MODE_CONTINUOUS, + IOADDR(A_SCD_TIMER_REGISTER(cpu, R_SCD_TIMER_CFG))); + + do_IRQ(irq); +} + +static inline void dispatch_ip2(void) +{ + unsigned long long mask_h, mask_l; + unsigned int cpu = smp_processor_id(); + unsigned long base; + + /* + * Default...we've hit an IP[2] interrupt, which means we've got to + * check the 1480 interrupt registers to figure out what to do. Need + * to detect which CPU we're on, now that smp_affinity is supported. + */ + base = A_BCM1480_IMR_MAPPER(cpu); + mask_h = __raw_readq( + IOADDR(base + R_BCM1480_IMR_INTERRUPT_STATUS_BASE_H)); + mask_l = __raw_readq( + IOADDR(base + R_BCM1480_IMR_INTERRUPT_STATUS_BASE_L)); + + if (mask_h) { + if (mask_h ^ 1) + do_IRQ(fls64(mask_h) - 1); + else if (mask_l) + do_IRQ(63 + fls64(mask_l)); + } +} + asmlinkage void plat_irq_dispatch(void) { unsigned int pending; @@ -469,17 +506,8 @@ asmlinkage void plat_irq_dispatch(void) else #endif - if (pending & CAUSEF_IP4) { - int cpu = smp_processor_id(); - int irq = K_BCM1480_INT_TIMER_0 + cpu; - - /* Reset the timer */ - __raw_writeq(M_SCD_TIMER_ENABLE|M_SCD_TIMER_MODE_CONTINUOUS, - IOADDR(A_SCD_TIMER_REGISTER(cpu, R_SCD_TIMER_CFG))); - - do_IRQ(irq); - } - + if (pending & CAUSEF_IP4) + dispatch_ip4(); #ifdef CONFIG_SMP else if (pending & CAUSEF_IP3) bcm1480_mailbox_interrupt(); @@ -490,27 +518,6 @@ asmlinkage void plat_irq_dispatch(void) bcm1480_kgdb_interrupt(); /* KGDB (uart 1) */ #endif - else if (pending & CAUSEF_IP2) { - unsigned long long mask_h, mask_l; - unsigned long base; - - /* - * Default...we've hit an IP[2] interrupt, which means we've - * got to check the 1480 interrupt registers to figure out what - * to do. Need to detect which CPU we're on, now that - * smp_affinity is supported. - */ - base = A_BCM1480_IMR_MAPPER(smp_processor_id()); - mask_h = __raw_readq( - IOADDR(base + R_BCM1480_IMR_INTERRUPT_STATUS_BASE_H)); - mask_l = __raw_readq( - IOADDR(base + R_BCM1480_IMR_INTERRUPT_STATUS_BASE_L)); - - if (mask_h) { - if (mask_h ^ 1) - do_IRQ(fls64(mask_h) - 1); - else - do_IRQ(63 + fls64(mask_l)); - } - } + else if (pending & CAUSEF_IP2) + dispatch_ip2(); } |