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Diffstat (limited to 'arch/i386/kernel/irq.c')
-rw-r--r--arch/i386/kernel/irq.c19
1 files changed, 11 insertions, 8 deletions
diff --git a/arch/i386/kernel/irq.c b/arch/i386/kernel/irq.c
index 5fe547cd8f9f..3dd2e180151b 100644
--- a/arch/i386/kernel/irq.c
+++ b/arch/i386/kernel/irq.c
@@ -55,6 +55,7 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs)
55{ 55{
56 /* high bit used in ret_from_ code */ 56 /* high bit used in ret_from_ code */
57 int irq = ~regs->orig_eax; 57 int irq = ~regs->orig_eax;
58 struct irq_desc *desc = irq_desc + irq;
58#ifdef CONFIG_4KSTACKS 59#ifdef CONFIG_4KSTACKS
59 union irq_ctx *curctx, *irqctx; 60 union irq_ctx *curctx, *irqctx;
60 u32 *isp; 61 u32 *isp;
@@ -94,7 +95,7 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs)
94 * current stack (which is the irq stack already after all) 95 * current stack (which is the irq stack already after all)
95 */ 96 */
96 if (curctx != irqctx) { 97 if (curctx != irqctx) {
97 int arg1, arg2, ebx; 98 int arg1, arg2, arg3, ebx;
98 99
99 /* build the stack frame on the IRQ stack */ 100 /* build the stack frame on the IRQ stack */
100 isp = (u32*) ((char*)irqctx + sizeof(*irqctx)); 101 isp = (u32*) ((char*)irqctx + sizeof(*irqctx));
@@ -110,16 +111,17 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs)
110 (curctx->tinfo.preempt_count & SOFTIRQ_MASK); 111 (curctx->tinfo.preempt_count & SOFTIRQ_MASK);
111 112
112 asm volatile( 113 asm volatile(
113 " xchgl %%ebx,%%esp \n" 114 " xchgl %%ebx,%%esp \n"
114 " call __do_IRQ \n" 115 " call *%%edi \n"
115 " movl %%ebx,%%esp \n" 116 " movl %%ebx,%%esp \n"
116 : "=a" (arg1), "=d" (arg2), "=b" (ebx) 117 : "=a" (arg1), "=d" (arg2), "=c" (arg3), "=b" (ebx)
117 : "0" (irq), "1" (regs), "2" (isp) 118 : "0" (irq), "1" (desc), "2" (regs), "3" (isp),
118 : "memory", "cc", "ecx" 119 "D" (desc->handle_irq)
120 : "memory", "cc"
119 ); 121 );
120 } else 122 } else
121#endif 123#endif
122 __do_IRQ(irq, regs); 124 desc->handle_irq(irq, desc, regs);
123 125
124 irq_exit(); 126 irq_exit();
125 127
@@ -253,7 +255,8 @@ int show_interrupts(struct seq_file *p, void *v)
253 for_each_online_cpu(j) 255 for_each_online_cpu(j)
254 seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]); 256 seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
255#endif 257#endif
256 seq_printf(p, " %14s", irq_desc[i].chip->typename); 258 seq_printf(p, " %8s", irq_desc[i].chip->name);
259 seq_printf(p, "-%s", handle_irq_name(irq_desc[i].handle_irq));
257 seq_printf(p, " %s", action->name); 260 seq_printf(p, " %s", action->name);
258 261
259 for (action=action->next; action; action = action->next) 262 for (action=action->next; action; action = action->next)