|  | #include <linux/init.h> | 
|  | #include <linux/linkage.h> | 
|  |  | 
|  | #include <asm/i8259.h> | 
|  | #include <asm/irq_cpu.h> | 
|  | #include <asm/mipsregs.h> | 
|  | #include <asm/qemu.h> | 
|  | #include <asm/system.h> | 
|  | #include <asm/time.h> | 
|  |  | 
|  | asmlinkage void plat_irq_dispatch(void) | 
|  | { | 
|  | unsigned int pending = read_c0_status() & read_c0_cause(); | 
|  |  | 
|  | if (pending & 0x8000) { | 
|  | do_IRQ(Q_COUNT_COMPARE_IRQ); | 
|  | return; | 
|  | } | 
|  | if (pending & 0x0400) { | 
|  | int irq = i8259_irq(); | 
|  |  | 
|  | if (likely(irq >= 0)) | 
|  | do_IRQ(irq); | 
|  |  | 
|  | return; | 
|  | } | 
|  | } | 
|  |  | 
|  | void __init arch_init_irq(void) | 
|  | { | 
|  | mips_hpt_frequency = QEMU_C0_COUNTER_CLOCK;		/* 100MHz */ | 
|  |  | 
|  | mips_cpu_irq_init(); | 
|  | init_i8259_irqs(); | 
|  | set_c0_status(0x8400); | 
|  | } |