* [PATCH 2.6.18-rt5 1/1] ARM: Use IRQF_NODELAY for XScale oprofile interrupt
@ 2006-10-09 23:01 Kevin Hilman
2006-10-18 7:37 ` Ingo Molnar
0 siblings, 1 reply; 2+ messages in thread
From: Kevin Hilman @ 2006-10-09 23:01 UTC (permalink / raw)
To: Ingo Molnar; +Cc: linux-kernel
Convert XScale performance monitor unit (PMU) interrupt used by
oprofile to IRQF_NODELAY. PMU results not useful if ISR is run as
thread.
Signed-off-by: Kevin Hilman <khilman@mvista.com>
Index: dev/arch/arm/oprofile/op_model_xscale.c
===================================================================
--- dev.orig/arch/arm/oprofile/op_model_xscale.c
+++ dev/arch/arm/oprofile/op_model_xscale.c
@@ -383,8 +383,9 @@ static int xscale_pmu_start(void)
{
int ret;
u32 pmnc = read_pmnc();
+ int irq_flags = IRQF_DISABLED | IRQF_NODELAY;
- ret = request_irq(XSCALE_PMU_IRQ, xscale_pmu_interrupt, IRQF_DISABLED,
+ ret = request_irq(XSCALE_PMU_IRQ, xscale_pmu_interrupt, irq_flags,
"XScale PMU", (void *)results);
if (ret < 0) {
--
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2006-10-09 23:01 [PATCH 2.6.18-rt5 1/1] ARM: Use IRQF_NODELAY for XScale oprofile interrupt Kevin Hilman
2006-10-18 7:37 ` Ingo Molnar
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