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#include <linux/init.h>
#include <linux/linkage.h>
#include <asm/i8259.h>
#include <asm/mipsregs.h>
#include <asm/qemu.h>
#include <asm/system.h>
#include <asm/time.h>
extern asmlinkage void qemu_handle_int(void);
asmlinkage void do_qemu_int(struct pt_regs *regs)
{
unsigned int pending = read_c0_status() & read_c0_cause();
if (pending & 0x8000) {
ll_timer_interrupt(Q_COUNT_COMPARE_IRQ, regs);
return;
}
if (pending & 0x0400) {
int irq = i8259_irq();
if (likely(irq >= 0))
do_IRQ(irq, regs);
return;
}
}
void __init arch_init_irq(void)
{
set_except_vector(0, qemu_handle_int);
mips_hpt_frequency = QEMU_C0_COUNTER_CLOCK; /* 100MHz */
init_i8259_irqs();
set_c0_status(0x8400);
}
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