X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fsh%2Fkernel%2Firq.c;h=b66d1b42dcd03c663a5394428c27e503ad96d8da;hb=refs%2Fheads%2Fvserver;hp=d78503dd22da281303a9b07a94d1bb01278736c7;hpb=9bf4aaab3e101692164d49b7ca357651eb691cb6;p=linux-2.6.git diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c index d78503dd2..b66d1b42d 100644 --- a/arch/sh/kernel/irq.c +++ b/arch/sh/kernel/irq.c @@ -1,5 +1,4 @@ -/* $Id: irq.c,v 1.20 2004/01/13 05:52:11 kkojima Exp $ - * +/* * linux/arch/sh/kernel/irq.c * * Copyright (C) 1992, 1998 Linus Torvalds, Ingo Molnar @@ -7,91 +6,32 @@ * * SuperH version: Copyright (C) 1999 Niibe Yutaka */ - -/* - * IRQs are in fact implemented a bit like signal handlers for the kernel. - * Naturally it's not a 1:1 relation, but there are similarities. - */ - -#include +#include +#include #include -#include -#include #include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include #include -#include - -#include -#include -#include -#include -#include -#include +#include #include +#include +#include +#include +#include +#include -/* - * Controller mappings for all interrupt sources: - */ -irq_desc_t irq_desc[NR_IRQS] __cacheline_aligned = { - [0 ... NR_IRQS-1] = { - .handler = &no_irq_type, - .lock = SPIN_LOCK_UNLOCKED - } -}; - -/* - * Special irq handlers. - */ - -irqreturn_t no_action(int cpl, void *dev_id, struct pt_regs *regs) -{ return IRQ_NONE; } - -/* - * Generic no controller code - */ +atomic_t irq_err_count; -static void enable_none(unsigned int irq) { } -static unsigned int startup_none(unsigned int irq) { return 0; } -static void disable_none(unsigned int irq) { } -static void ack_none(unsigned int irq) -{ /* * 'what should we do if we get a hw irq event on an illegal vector'. * each architecture has to answer this themselves, it doesn't deserve * a generic callback i think. */ +void ack_bad_irq(unsigned int irq) +{ + atomic_inc(&irq_err_count); printk("unexpected IRQ trap at vector %02x\n", irq); } -/* startup is the same as "enable", shutdown is same as "disable" */ -#define shutdown_none disable_none -#define end_none enable_none - -struct hw_interrupt_type no_irq_type = { - "none", - startup_none, - shutdown_none, - enable_none, - disable_none, - ack_none, - end_none -}; - -/* - * Generic, controller-independent functions: - */ - #if defined(CONFIG_PROC_FS) int show_interrupts(struct seq_file *p, void *v) { @@ -101,20 +41,21 @@ int show_interrupts(struct seq_file *p, void *v) if (i == 0) { seq_puts(p, " "); - for (j=0; jtypename); + for_each_online_cpu(j) + seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]); + seq_printf(p, " %14s", irq_desc[i].chip->name); + seq_printf(p, "-%-8s", irq_desc[i].name); seq_printf(p, " %s", action->name); for (action=action->next; action; action = action->next) @@ -122,608 +63,223 @@ int show_interrupts(struct seq_file *p, void *v) seq_putc(p, '\n'); unlock: spin_unlock_irqrestore(&irq_desc[i].lock, flags); - } + } else if (i == NR_IRQS) + seq_printf(p, "Err: %10u\n", atomic_read(&irq_err_count)); + return 0; } #endif +#ifdef CONFIG_4KSTACKS /* - * This should really return information about whether - * we should do bottom half handling etc. Right now we - * end up _always_ checking the bottom half, which is a - * waste of time and is not what some drivers would - * prefer. + * per-CPU IRQ handling contexts (thread information and stack) */ -int handle_IRQ_event(unsigned int irq, struct pt_regs * regs, struct irqaction * action) -{ - int status = 1; /* Force the "do bottom halves" bit */ - int retval = 0; - - if (!(action->flags & SA_INTERRUPT)) - local_irq_enable(); - - do { - status |= action->flags; - retval |= action->handler(irq, action->dev_id, regs); - action = action->next; - } while (action); - - if (status & SA_SAMPLE_RANDOM) - add_interrupt_randomness(irq); - - local_irq_disable(); - return retval; -} - -static void __report_bad_irq(int irq, irq_desc_t *desc, irqreturn_t action_ret) -{ - struct irqaction *action; - - if (action_ret != IRQ_HANDLED && action_ret != IRQ_NONE) { - printk(KERN_ERR "irq event %d: bogus return value %x\n", - irq, action_ret); - } else { - printk(KERN_ERR "irq %d: nobody cared!\n", irq); - } - dump_stack(); - printk(KERN_ERR "handlers:\n"); - action = desc->action; - do { - printk(KERN_ERR "[<%p>]", action->handler); - print_symbol(" (%s)", - (unsigned long)action->handler); - printk("\n"); - action = action->next; - } while (action); -} - -static void report_bad_irq(int irq, irq_desc_t *desc, irqreturn_t action_ret) -{ - static int count = 100; - - if (count) { - count--; - __report_bad_irq(irq, desc, action_ret); - } -} - -static int noirqdebug; - -static int __init noirqdebug_setup(char *str) -{ - noirqdebug = 1; - printk("IRQ lockup detection disabled\n"); - return 1; -} - -__setup("noirqdebug", noirqdebug_setup); - -/* - * If 99,900 of the previous 100,000 interrupts have not been handled then - * assume that the IRQ is stuck in some manner. Drop a diagnostic and try to - * turn the IRQ off. - * - * (The other 100-of-100,000 interrupts may have been a correctly-functioning - * device sharing an IRQ with the failing one) - * - * Called under desc->lock - */ -static void note_interrupt(int irq, irq_desc_t *desc, irqreturn_t action_ret) -{ - if (action_ret != IRQ_HANDLED) { - desc->irqs_unhandled++; - if (action_ret != IRQ_NONE) - report_bad_irq(irq, desc, action_ret); - } - - desc->irq_count++; - if (desc->irq_count < 100000) - return; +union irq_ctx { + struct thread_info tinfo; + u32 stack[THREAD_SIZE/sizeof(u32)]; +}; - desc->irq_count = 0; - if (desc->irqs_unhandled > 99900) { - /* - * The interrupt is stuck - */ - __report_bad_irq(irq, desc, action_ret); - /* - * Now kill the IRQ - */ - printk(KERN_EMERG "Disabling IRQ #%d\n", irq); - desc->status |= IRQ_DISABLED; - desc->handler->disable(irq); - } - desc->irqs_unhandled = 0; -} +static union irq_ctx *hardirq_ctx[NR_CPUS] __read_mostly; +static union irq_ctx *softirq_ctx[NR_CPUS] __read_mostly; +#endif -/* - * Generic enable/disable code: this just calls - * down into the PIC-specific version for the actual - * hardware disable after having gotten the irq - * controller lock. - */ -inline void disable_irq_nosync(unsigned int irq) +asmlinkage int do_IRQ(unsigned long r4, unsigned long r5, + unsigned long r6, unsigned long r7, + struct pt_regs __regs) { - irq_desc_t *desc = irq_desc + irq; - unsigned long flags; + struct pt_regs *regs = RELOC_HIDE(&__regs, 0); + struct pt_regs *old_regs = set_irq_regs(regs); + int irq; +#ifdef CONFIG_4KSTACKS + union irq_ctx *curctx, *irqctx; +#endif - spin_lock_irqsave(&desc->lock, flags); - if (!desc->depth++) { - desc->status |= IRQ_DISABLED; - desc->handler->disable(irq); - } - spin_unlock_irqrestore(&desc->lock, flags); -} + irq_enter(); -/* - * Synchronous version of the above, making sure the IRQ is - * no longer running on any other IRQ.. - */ -void disable_irq(unsigned int irq) -{ - irq_desc_t *desc = irq_desc + irq; - disable_irq_nosync(irq); - if (desc->action) - synchronize_irq(irq); -} +#ifdef CONFIG_DEBUG_STACKOVERFLOW + /* Debugging check for stack overflow: is there less than 1KB free? */ + { + long sp; -void enable_irq(unsigned int irq) -{ - irq_desc_t *desc = irq_desc + irq; - unsigned long flags; + __asm__ __volatile__ ("and r15, %0" : + "=r" (sp) : "0" (THREAD_SIZE - 1)); - spin_lock_irqsave(&desc->lock, flags); - switch (desc->depth) { - case 1: { - unsigned int status = desc->status & ~(IRQ_DISABLED | IRQ_INPROGRESS); - desc->status = status; - if ((status & (IRQ_PENDING | IRQ_REPLAY)) == IRQ_PENDING) { - desc->status = status | IRQ_REPLAY; - hw_resend_irq(desc->handler,irq); + if (unlikely(sp < (sizeof(struct thread_info) + STACK_WARN))) { + printk("do_IRQ: stack overflow: %ld\n", + sp - sizeof(struct thread_info)); + dump_stack(); } - desc->handler->enable(irq); - /* fall-through */ } - default: - desc->depth--; - break; - case 0: - printk("enable_irq() unbalanced from %p\n", - __builtin_return_address(0)); - } - spin_unlock_irqrestore(&desc->lock, flags); -} - -/* - * do_IRQ handles all normal device IRQ's. - */ -asmlinkage int do_IRQ(unsigned long r4, unsigned long r5, - unsigned long r6, unsigned long r7, - struct pt_regs regs) -{ - /* - * We ack quickly, we don't want the irq controller - * thinking we're snobs just because some other CPU has - * disabled global interrupts (we have already done the - * INT_ACK cycles, it's too late to try to pretend to the - * controller that we aren't taking the interrupt). - * - * 0 return value means that this irq is already being - * handled by some other CPU. (or is disabled) - */ - int irq; - irq_desc_t *desc; - struct irqaction * action; - unsigned int status; - - irq_enter(); +#endif -#ifdef CONFIG_PREEMPT - /* - * At this point we're now about to actually call handlers, - * and interrupts might get reenabled during them... bump - * preempt_count to prevent any preemption while the handler - * called here is pending... - */ - preempt_disable(); +#ifdef CONFIG_CPU_HAS_INTEVT + irq = evt2irq(ctrl_inl(INTEVT)); +#else + irq = r4; #endif - /* Get IRQ number */ - asm volatile("stc r2_bank, %0\n\t" - "shlr2 %0\n\t" - "shlr2 %0\n\t" - "shlr %0\n\t" - "add #-16, %0\n\t" - :"=z" (irq)); irq = irq_demux(irq); - kstat_this_cpu.irqs[irq]++; - desc = irq_desc + irq; - spin_lock(&desc->lock); - desc->handler->ack(irq); - /* - REPLAY is when Linux resends an IRQ that was dropped earlier - WAITING is used by probe to mark irqs that are being tested - */ - status = desc->status & ~(IRQ_REPLAY | IRQ_WAITING); - status |= IRQ_PENDING; /* we _want_ to handle it */ - - /* - * If the IRQ is disabled for whatever reason, we cannot - * use the action we have. - */ - action = NULL; - if (likely(!(status & (IRQ_DISABLED | IRQ_INPROGRESS)))) { - action = desc->action; - status &= ~IRQ_PENDING; /* we commit to handling */ - status |= IRQ_INPROGRESS; /* we are handling it */ - } - desc->status = status; +#ifdef CONFIG_4KSTACKS + curctx = (union irq_ctx *)current_thread_info(); + irqctx = hardirq_ctx[smp_processor_id()]; /* - * If there is no IRQ handler or it was disabled, exit early. - Since we set PENDING, if another processor is handling - a different instance of this same irq, the other processor - will take care of it. + * this is where we switch to the IRQ stack. However, if we are + * already using the IRQ stack (because we interrupted a hardirq + * handler) we can't do that and just have to keep using the + * current stack (which is the irq stack already after all) */ - if (unlikely(!action)) - goto out; + if (curctx != irqctx) { + u32 *isp; - /* - * Edge triggered interrupts need to remember - * pending events. - * This applies to any hw interrupts that allow a second - * instance of the same irq to arrive while we are in do_IRQ - * or in the handler. But the code here only handles the _second_ - * instance of the irq, not the third or fourth. So it is mostly - * useful for irq hardware that does not mask cleanly in an - * SMP environment. - */ - for (;;) { - irqreturn_t action_ret; - - spin_unlock(&desc->lock); - action_ret = handle_IRQ_event(irq, ®s, action); - spin_lock(&desc->lock); - if (!noirqdebug) - note_interrupt(irq, desc, action_ret); - if (likely(!(desc->status & IRQ_PENDING))) - break; - desc->status &= ~IRQ_PENDING; - } - desc->status &= ~IRQ_INPROGRESS; + isp = (u32 *)((char *)irqctx + sizeof(*irqctx)); + irqctx->tinfo.task = curctx->tinfo.task; + irqctx->tinfo.previous_sp = current_stack_pointer; -out: - /* - * The ->end() handler has to deal with interrupts which got - * disabled while the handler was running. - */ - desc->handler->end(irq); - spin_unlock(&desc->lock); + /* + * Copy the softirq bits in preempt_count so that the + * softirq checks work in the hardirq context. + */ + irqctx->tinfo.preempt_count = + (irqctx->tinfo.preempt_count & ~SOFTIRQ_MASK) | + (curctx->tinfo.preempt_count & SOFTIRQ_MASK); + + __asm__ __volatile__ ( + "mov %0, r4 \n" + "mov r15, r8 \n" + "jsr @%1 \n" + /* swith to the irq stack */ + " mov %2, r15 \n" + /* restore the stack (ring zero) */ + "mov r8, r15 \n" + : /* no outputs */ + : "r" (irq), "r" (generic_handle_irq), "r" (isp) + : "memory", "r0", "r1", "r2", "r3", "r4", + "r5", "r6", "r7", "r8", "t", "pr" + ); + } else +#endif + generic_handle_irq(irq); irq_exit(); -#ifdef CONFIG_PREEMPT - /* - * We're done with the handlers, interrupts should be - * currently disabled; decrement preempt_count now so - * as we return preemption may be allowed... - */ - preempt_enable_no_resched(); -#endif - + set_irq_regs(old_regs); return 1; } -int request_irq(unsigned int irq, - irqreturn_t (*handler)(int, void *, struct pt_regs *), - unsigned long irqflags, - const char * devname, - void *dev_id) -{ - int retval; - struct irqaction * action; - - if (irq >= ACTUAL_NR_IRQS) - return -EINVAL; - if (!handler) - return -EINVAL; - - action = (struct irqaction *) - kmalloc(sizeof(struct irqaction), GFP_ATOMIC); - if (!action) - return -ENOMEM; - - action->handler = handler; - action->flags = irqflags; - cpus_clear(action->mask); - action->name = devname; - action->next = NULL; - action->dev_id = dev_id; - - retval = setup_irq(irq, action); - if (retval) - kfree(action); - return retval; -} - -EXPORT_SYMBOL(request_irq); - -void free_irq(unsigned int irq, void *dev_id) -{ - irq_desc_t *desc; - struct irqaction **p; - unsigned long flags; - - if (irq >= ACTUAL_NR_IRQS) - return; - - desc = irq_desc + irq; - spin_lock_irqsave(&desc->lock,flags); - p = &desc->action; - for (;;) { - struct irqaction * action = *p; - if (action) { - struct irqaction **pp = p; - p = &action->next; - if (action->dev_id != dev_id) - continue; - - /* Found it - now remove it from the list of entries */ - *pp = action->next; - if (!desc->action) { - desc->status |= IRQ_DISABLED; - desc->handler->shutdown(irq); - } - spin_unlock_irqrestore(&desc->lock,flags); - synchronize_irq(irq); - kfree(action); - return; - } - printk("Trying to free free IRQ%d\n",irq); - spin_unlock_irqrestore(&desc->lock,flags); - return; - } -} - -EXPORT_SYMBOL(free_irq); - -static DECLARE_MUTEX(probe_sem); - +#ifdef CONFIG_4KSTACKS /* - * IRQ autodetection code.. - * - * This depends on the fact that any interrupt that - * comes in on to an unassigned handler will get stuck - * with "IRQ_WAITING" cleared and the interrupt - * disabled. + * These should really be __section__(".bss.page_aligned") as well, but + * gcc's 3.0 and earlier don't handle that correctly. */ -unsigned long probe_irq_on(void) -{ - unsigned int i; - irq_desc_t *desc; - unsigned long val; - unsigned long delay; - - down(&probe_sem); - /* - * something may have generated an irq long ago and we want to - * flush such a longstanding irq before considering it as spurious. - */ - for (i = NR_IRQS-1; i > 0; i--) { - desc = irq_desc + i; +static char softirq_stack[NR_CPUS * THREAD_SIZE] + __attribute__((__aligned__(THREAD_SIZE))); - spin_lock_irq(&desc->lock); - if (!desc->action) - desc->handler->startup(i); - spin_unlock_irq(&desc->lock); - } - - /* Wait for longstanding interrupts to trigger. */ - for (delay = jiffies + HZ/50; time_after(delay, jiffies); ) - /* about 20ms delay */ barrier(); - - /* - * enable any unassigned irqs - * (we must startup again here because if a longstanding irq - * happened in the previous stage, it may have masked itself) - */ - for (i = NR_IRQS-1; i > 0; i--) { - desc = irq_desc + i; - - spin_lock_irq(&desc->lock); - if (!desc->action) { - desc->status |= IRQ_AUTODETECT | IRQ_WAITING; - if (desc->handler->startup(i)) - desc->status |= IRQ_PENDING; - } - spin_unlock_irq(&desc->lock); - } - - /* - * Wait for spurious interrupts to trigger - */ - for (delay = jiffies + HZ/10; time_after(delay, jiffies); ) - /* about 100ms delay */ barrier(); - - /* - * Now filter out any obviously spurious interrupts - */ - val = 0; - for (i=0; ilock); - status = desc->status; - - if (status & IRQ_AUTODETECT) { - /* It triggered already - consider it spurious. */ - if (!(status & IRQ_WAITING)) { - desc->status = status & ~IRQ_AUTODETECT; - desc->handler->shutdown(i); - } else - if (i < 32) - val |= 1 << i; - } - spin_unlock_irq(&desc->lock); - } - - return val; -} - -EXPORT_SYMBOL(probe_irq_on); - -/* Return a mask of triggered interrupts (this - * can handle only legacy ISA interrupts). - */ +static char hardirq_stack[NR_CPUS * THREAD_SIZE] + __attribute__((__aligned__(THREAD_SIZE))); /* - * probe_irq_mask - scan a bitmap of interrupt lines - * @val: mask of interrupts to consider - * - * Scan the ISA bus interrupt lines and return a bitmap of - * active interrupts. The interrupt probe logic state is then - * returned to its previous value. - * - * Note: we need to scan all the irq's even though we will - * only return ISA irq numbers - just so that we reset them - * all to a known state. + * allocate per-cpu stacks for hardirq and for softirq processing */ -unsigned int probe_irq_mask(unsigned long val) +void irq_ctx_init(int cpu) { - int i; - unsigned int mask; + union irq_ctx *irqctx; - mask = 0; - for (i = 0; i < NR_IRQS; i++) { - irq_desc_t *desc = irq_desc + i; - unsigned int status; + if (hardirq_ctx[cpu]) + return; - spin_lock_irq(&desc->lock); - status = desc->status; + irqctx = (union irq_ctx *)&hardirq_stack[cpu * THREAD_SIZE]; + irqctx->tinfo.task = NULL; + irqctx->tinfo.exec_domain = NULL; + irqctx->tinfo.cpu = cpu; + irqctx->tinfo.preempt_count = HARDIRQ_OFFSET; + irqctx->tinfo.addr_limit = MAKE_MM_SEG(0); - if (status & IRQ_AUTODETECT) { - if (i < 16 && !(status & IRQ_WAITING)) - mask |= 1 << i; + hardirq_ctx[cpu] = irqctx; - desc->status = status & ~IRQ_AUTODETECT; - desc->handler->shutdown(i); - } - spin_unlock_irq(&desc->lock); - } - up(&probe_sem); + irqctx = (union irq_ctx *)&softirq_stack[cpu * THREAD_SIZE]; + irqctx->tinfo.task = NULL; + irqctx->tinfo.exec_domain = NULL; + irqctx->tinfo.cpu = cpu; + irqctx->tinfo.preempt_count = 0; + irqctx->tinfo.addr_limit = MAKE_MM_SEG(0); + + softirq_ctx[cpu] = irqctx; - return mask & val; + printk("CPU %u irqstacks, hard=%p soft=%p\n", + cpu, hardirq_ctx[cpu], softirq_ctx[cpu]); } -int probe_irq_off(unsigned long val) +void irq_ctx_exit(int cpu) { - int i, irq_found, nr_irqs; - - nr_irqs = 0; - irq_found = 0; - for (i=0; ilock); - status = desc->status; - - if (status & IRQ_AUTODETECT) { - if (!(status & IRQ_WAITING)) { - if (!nr_irqs) - irq_found = i; - nr_irqs++; - } - desc->status = status & ~IRQ_AUTODETECT; - desc->handler->shutdown(i); - } - spin_unlock_irq(&desc->lock); - } - up(&probe_sem); - - if (nr_irqs > 1) - irq_found = -irq_found; - return irq_found; + hardirq_ctx[cpu] = NULL; } -EXPORT_SYMBOL(probe_irq_off); +extern asmlinkage void __do_softirq(void); -int setup_irq(unsigned int irq, struct irqaction * new) +asmlinkage void do_softirq(void) { - int shared = 0; - struct irqaction *old, **p; unsigned long flags; - irq_desc_t *desc = irq_desc + irq; - - if (desc->handler == &no_irq_type) - return -ENOSYS; - /* - * Some drivers like serial.c use request_irq() heavily, - * so we have to be careful not to interfere with a - * running system. - */ - if (new->flags & SA_SAMPLE_RANDOM) { - /* - * This function might sleep, we want to call it first, - * outside of the atomic block. - * Yes, this might clear the entropy pool if the wrong - * driver is attempted to be loaded, without actually - * installing a new handler, but is this really a problem, - * only the sysadmin is able to do this. - */ - rand_initialize_irq(irq); - } - - /* - * The following block of code has to be executed atomically - */ - spin_lock_irqsave(&desc->lock,flags); - p = &desc->action; - if ((old = *p) != NULL) { - /* Can't share interrupts unless both agree to */ - if (!(old->flags & new->flags & SA_SHIRQ)) { - spin_unlock_irqrestore(&desc->lock,flags); - return -EBUSY; - } + struct thread_info *curctx; + union irq_ctx *irqctx; + u32 *isp; - /* add new interrupt at end of irq queue */ - do { - p = &old->next; - old = *p; - } while (old); - shared = 1; - } + if (in_interrupt()) + return; - *p = new; + local_irq_save(flags); + + if (local_softirq_pending()) { + curctx = current_thread_info(); + irqctx = softirq_ctx[smp_processor_id()]; + irqctx->tinfo.task = curctx->task; + irqctx->tinfo.previous_sp = current_stack_pointer; + + /* build the stack frame on the softirq stack */ + isp = (u32 *)((char *)irqctx + sizeof(*irqctx)); + + __asm__ __volatile__ ( + "mov r15, r9 \n" + "jsr @%0 \n" + /* switch to the softirq stack */ + " mov %1, r15 \n" + /* restore the thread stack */ + "mov r9, r15 \n" + : /* no outputs */ + : "r" (__do_softirq), "r" (isp) + : "memory", "r0", "r1", "r2", "r3", "r4", + "r5", "r6", "r7", "r8", "r9", "r15", "t", "pr" + ); - if (!shared) { - desc->depth = 0; - desc->status &= ~(IRQ_DISABLED | IRQ_AUTODETECT | IRQ_WAITING | IRQ_INPROGRESS); - desc->handler->startup(irq); + /* + * Shouldnt happen, we returned above if in_interrupt(): + */ + WARN_ON_ONCE(softirq_count()); } - spin_unlock_irqrestore(&desc->lock,flags); - return 0; -} - -#if defined(CONFIG_PROC_FS) && defined(CONFIG_SYSCTL) -void init_irq_proc(void) -{ + local_irq_restore(flags); } +EXPORT_SYMBOL(do_softirq); #endif -/* Taken from the 2.5 alpha port */ -#ifdef CONFIG_SMP -void synchronize_irq(unsigned int irq) +void __init init_IRQ(void) { - /* is there anything to synchronize with? */ - if (!irq_desc[irq].action) - return; +#ifdef CONFIG_CPU_HAS_PINT_IRQ + init_IRQ_pint(); +#endif - while (irq_desc[irq].status & IRQ_INPROGRESS) - barrier(); -} +#ifdef CONFIG_CPU_HAS_INTC2_IRQ + init_IRQ_intc2(); #endif + +#ifdef CONFIG_CPU_HAS_IPR_IRQ + init_IRQ_ipr(); +#endif + + /* Perform the machine specific initialisation */ + if (sh_mv.mv_init_irq) + sh_mv.mv_init_irq(); + + irq_ctx_init(smp_processor_id()); +}