asmlinkage void plat_irq_dispatch(void)
{
unsigned int cpu = smp_processor_id();
unsigned int pending;
/*
* What a pain. We have to be really careful saving the upper 32 bits
* of any * register across function calls if we don't want them
* trashed--since were running in -o32, the calling routing never saves
* the full 64 bits of a register across a function call. Being the
* interrupt handler, we're guaranteed that interrupts are disabled
* during this code so we don't have to worry about random interrupts
* blasting the high 32 bits.
*/
pending = read_c0_cause() & read_c0_status() & ST0_IM;
if (pending & CAUSEF_IP7) /* CPU performance counter interrupt */
do_IRQ(MIPS_CPU_IRQ_BASE + 7);
else if (pending & CAUSEF_IP4)
do_IRQ(K_INT_TIMER_0 + cpu); /* sb1250_timer_interrupt() */
#ifdef CONFIG_SMP
else if (pending & CAUSEF_IP3)
sb1250_mailbox_interrupt();
#endif
else if (pending & CAUSEF_IP2)
dispatch_ip2();
else
spurious_interrupt();
}
asmlinkage void plat_irq_dispatch(void)
{
unsigned int cpu = smp_processor_id();
unsigned int pending;
#ifdef CONFIG_SIBYTE_BCM1480_PROF
/* Set compare to count to silence count/compare timer interrupts */
write_c0_compare(read_c0_count());
#endif
pending = read_c0_cause() & read_c0_status();
#ifdef CONFIG_SIBYTE_BCM1480_PROF
if (pending & CAUSEF_IP7) /* Cpu performance counter interrupt */
sbprof_cpu_intr();
else
#endif
if (pending & CAUSEF_IP4)
do_IRQ(K_BCM1480_INT_TIMER_0 + cpu);
#ifdef CONFIG_SMP
else if (pending & CAUSEF_IP3)
bcm1480_mailbox_interrupt();
#endif
else if (pending & CAUSEF_IP2)
dispatch_ip2();
}
