Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / arch / sh / kernel / irq.c

diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c
index 54c1712..b56e796 100644 (file)
--- a/arch/sh/kernel/irq.c
+++ b/arch/sh/kernel/irq.c
@@ -8,38 +8,13 @@
  * 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 <linux/config.h>
-#include <linux/module.h>
-#include <linux/ptrace.h>
-#include <linux/errno.h>
-#include <linux/kernel_stat.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/ioport.h>
+#include <linux/irq.h>
 #include <linux/interrupt.h>
-#include <linux/timex.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/random.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/init.h>
+#include <linux/kernel_stat.h>
 #include <linux/seq_file.h>
-#include <linux/kallsyms.h>
-#include <linux/bitops.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/pgalloc.h>
-#include <asm/delay.h>
 #include <asm/irq.h>
-#include <linux/irq.h>
-
+#include <asm/processor.h>
+#include <asm/cpu/mmu_context.h>
 
 /*
  * 'what should we do if we get a hw irq event on an illegal vector'.
@@ -60,13 +35,12 @@ int show_interrupts(struct seq_file *p, void *v)
 
        if (i == 0) {
                seq_puts(p, "           ");
-               for (j=0; j<NR_CPUS; j++)
-                       if (cpu_online(j))
-                               seq_printf(p, "CPU%d       ",j);
+               for_each_online_cpu(j)
+                       seq_printf(p, "CPU%d       ",j);
                seq_putc(p, '\n');
        }
 
-       if (i < ACTUAL_NR_IRQS) {
+       if (i < NR_IRQS) {
                spin_lock_irqsave(&irq_desc[i].lock, flags);
                action = irq_desc[i].action;
                if (!action)
@@ -86,19 +60,32 @@ unlock:
 }
 #endif
 
+
 asmlinkage int do_IRQ(unsigned long r4, unsigned long r5,
                      unsigned long r6, unsigned long r7,
                      struct pt_regs regs)
-{      
-       int irq;
+{
+       int irq = r4;
 
        irq_enter();
-       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));
+
+#ifdef CONFIG_CPU_HAS_INTEVT
+       __asm__ __volatile__ (
+#ifdef CONFIG_CPU_HAS_SR_RB
+               "stc    r2_bank, %0\n\t"
+#else
+               "mov.l  @%1, %0\n\t"
+#endif
+               "shlr2  %0\n\t"
+               "shlr2  %0\n\t"
+               "shlr   %0\n\t"
+               "add    #-16, %0\n\t"
+               : "=z" (irq), "=r" (r4)
+               : "1" (INTEVT)
+               : "memory"
+       );
+#endif
+
        irq = irq_demux(irq);
        __do_IRQ(irq, &regs);
        irq_exit();