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m68k: Revive reporting of spurious interrupts

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commit 2502b667ea ("Change the m68knommu irq
handling to use the generic irq framework.") removed the reporting of spurious
interrupts on nommu (68328 and 68360).

Bring it back in a generic way, using "atomic_t irq_err_count", as that's what
most of the other architectures are using.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
This commit is contained in:
Geert Uytterhoeven 2011-07-13 20:29:24 +02:00 committed by Greg Ungerer
parent 739735d5fe
commit 8c9f08f9de
5 changed files with 12 additions and 8 deletions
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10
arch/m68k/kernel/irq.c
View File

@ -28,3 +28,13 @@ asmlinkage void do_IRQ(int irq, struct pt_regs *regs)
set_irq_regs(oldregs);
}
/* The number of spurious interrupts */
atomic_t irq_err_count;
int arch_show_interrupts(struct seq_file *p, int prec)
{
seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
return 0;
}

2
arch/m68k/platform/68328/entry.S
View File

@ -236,7 +236,7 @@ ret_from_interrupt:
* Handler for uninitialized and spurious interrupts.
*/
ENTRY(bad_interrupt)
addql #1,num_spurious
addql #1,irq_err_count
rte
/*

3
arch/m68k/platform/68328/ints.c
View File

@ -70,9 +70,6 @@ asmlinkage irqreturn_t inthandler7(void);
extern e_vector *_ramvec;
/* The number of spurious interrupts */
volatile unsigned int num_spurious;
/* The 68k family did not have a good way to determine the source
* of interrupts until later in the family. The EC000 core does
* not provide the vector number on the stack, we vector everything

2
arch/m68k/platform/68360/entry.S
View File

@ -157,7 +157,7 @@ ret_from_interrupt:
* Handler for uninitialized and spurious interrupts.
*/
bad_interrupt:
addql #1,num_spurious
addql #1,irq_err_count
rte
/*

3
arch/m68k/platform/68360/ints.c
View File

@ -34,9 +34,6 @@ asmlinkage void inthandler(void);
extern void *_ramvec[];
/* The number of spurious interrupts */
volatile unsigned int num_spurious;
static void intc_irq_unmask(struct irq_data *d)
{
pquicc->intr_cimr |= (1 << d->irq);