cp0_timer_irq_installed   27 arch/mips/include/asm/cevt-r4k.h extern int cp0_timer_irq_installed;
cp0_timer_irq_installed  109 arch/mips/kernel/cevt-r4k.c int cp0_timer_irq_installed;
cp0_timer_irq_installed  289 arch/mips/kernel/cevt-r4k.c 	if (cp0_timer_irq_installed)
cp0_timer_irq_installed  292 arch/mips/kernel/cevt-r4k.c 	cp0_timer_irq_installed = 1;