[MIPS] IP27: Fix collision with hardcoded interrupt number. (3c009442) · Commits · github.com / kvm-riscv / linux

arch/mips/sgi-ip27/ip27-irq.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -360,7 +360,7 @@ static struct hw_interrupt_type bridge_irq_type = {

		static unsigned long irq_map[NR_IRQS / BITS_PER_LONG];

		static int allocate_irqno(void)
		int allocate_irqno(void)
		{
		int irq;

arch/mips/sgi-ip27/ip27-timer.c

+59 −2

Original line number	Diff line number	Diff line
		@@ -89,11 +89,13 @@ static int set_rtc_mmss(unsigned long nowtime)
		}
		#endif

		static unsigned int rt_timer_irq;

		void ip27_rt_timer_interrupt(struct pt_regs *regs)
		{
		int cpu = smp_processor_id();
		int cpuA = cputoslice(cpu) == 0;
		int irq = 9; /* XXX Assign number */
		unsigned int irq = rt_timer_irq;

		irq_enter();
		write_seqlock(&xtime_lock);
		@@ -179,13 +181,68 @@ static __init unsigned long get_m48t35_time(void)
		return mktime(year, month, date, hour, min, sec);
		}

		static void startup_rt_irq(unsigned int irq)
		{
		}

		static void shutdown_rt_irq(unsigned int irq)
		{
		}

		static void enable_rt_irq(unsigned int irq)
		{
		}

		static void disable_rt_irq(unsigned int irq)
		{
		}

		static void mask_and_ack_rt(unsigned int irq)
		{
		}

		static void end_rt_irq(unsigned int irq)
		{
		}

		static struct hw_interrupt_type rt_irq_type = {
		.typename = "SN HUB RT timer",
		.startup = startup_rt_irq,
		.shutdown = shutdown_rt_irq,
		.enable = enable_rt_irq,
		.disable = disable_rt_irq,
		.ack = mask_and_ack_rt,
		.end = end_rt_irq,
		};

		static struct irqaction rt_irqaction = {
		.handler = ip27_rt_timer_interrupt,
		.flags = SA_INTERRUPT,
		.mask = CPU_MASK_NONE,
		.name = "timer"
		};

		extern int allocate_irqno(void);

		static void ip27_timer_setup(struct irqaction *irq)
		{
		int irqno = allocate_irqno();

		if (irqno < 0)
		panic("Can't allocate interrupt number for timer interrupt");

		irq_desc[irqno].status = IRQ_DISABLED;
		irq_desc[irqno].action = NULL;
		irq_desc[irqno].depth = 1;
		irq_desc[irqno].handler = &rt_irq_type;

		/* over-write the handler, we use our own way */
		irq->handler = no_action;

		/* setup irqaction */
		// setup_irq(IP27_TIMER_IRQ, irq); /* XXX Can't do this yet. */
		irq_desc[irqno].status \|= IRQ_PER_CPU;

		rt_timer_irq = irqno;
		}

		void __init ip27_time_init(void)