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authorGeert Uytterhoeven <geert@linux-m68k.org>2011-07-13 20:29:24 +0200
committerGreg Ungerer <gerg@uclinux.org>2011-07-25 11:20:41 +1000
commit8c9f08f9de38c9af3a946faf0cccd7fc46978443 (patch)
tree8aa45d55e13f2cb43d960823a41c3e1ecec8f57e
parent739735d5fea3c3997b2a659068a618b07bc9a73a (diff)
m68k: Revive reporting of spurious interrupts
commit 2502b667ea835ee16685c74b2a0d89ba8afe117a ("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>
-rw-r--r--arch/m68k/kernel/irq.c10
-rw-r--r--arch/m68k/platform/68328/entry.S2
-rw-r--r--arch/m68k/platform/68328/ints.c3
-rw-r--r--arch/m68k/platform/68360/entry.S2
-rw-r--r--arch/m68k/platform/68360/ints.c3
5 files changed, 12 insertions, 8 deletions
diff --git a/arch/m68k/kernel/irq.c b/arch/m68k/kernel/irq.c
index 544b8717d499..c73988cfa90f 100644
--- a/arch/m68k/kernel/irq.c
+++ b/arch/m68k/kernel/irq.c
@@ -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;
+}
diff --git a/arch/m68k/platform/68328/entry.S b/arch/m68k/platform/68328/entry.S
index 4ed7a65d5aa0..293e1eba9acc 100644
--- a/arch/m68k/platform/68328/entry.S
+++ b/arch/m68k/platform/68328/entry.S
@@ -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
/*
diff --git a/arch/m68k/platform/68328/ints.c b/arch/m68k/platform/68328/ints.c
index 22acb60b541a..4bd456531f91 100644
--- a/arch/m68k/platform/68328/ints.c
+++ b/arch/m68k/platform/68328/ints.c
@@ -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
diff --git a/arch/m68k/platform/68360/entry.S b/arch/m68k/platform/68360/entry.S
index 0ede6702127a..abbb89672ea0 100644
--- a/arch/m68k/platform/68360/entry.S
+++ b/arch/m68k/platform/68360/entry.S
@@ -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
/*
diff --git a/arch/m68k/platform/68360/ints.c b/arch/m68k/platform/68360/ints.c
index 44443820d208..7b40202d9638 100644
--- a/arch/m68k/platform/68360/ints.c
+++ b/arch/m68k/platform/68360/ints.c
@@ -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);