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MIPS: make oprofile use cp0_perfcount_irq if it is set

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Make the oprofile code use the performance counters irq.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3723/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Felix Fietkau
2012-05-02 17:33:04 +02:00
committed by Ralf Baechle
parent 36be50515f
commit 3572a2c37f
2 changed files with 14 additions and 1 deletions
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3
arch/mips/kernel/perf_event_mipsxx.c
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@@ -1532,7 +1532,8 @@ init_hw_perf_events(void)
irq = MSC01E_INT_BASE + MSC01E_INT_PERFCTR;
} else {
#endif
if (cp0_perfcount_irq >= 0)
if ((cp0_perfcount_irq >= 0) &&
(cp0_compare_irq != cp0_perfcount_irq))
irq = MIPS_CPU_IRQ_BASE + cp0_perfcount_irq;
else
irq = -1;