In loongson2f, the IP6 is shared by bonito and perfcounter, we need to avoid do_IRQ for perfcounter when the interrupt is from bonito. This patch does it. Signed-off-by: Wu Zhangjin <wuzhangjin@xxxxxxxxx> --- arch/mips/oprofile/op_model_loongson2.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/arch/mips/oprofile/op_model_loongson2.c b/arch/mips/oprofile/op_model_loongson2.c index 575cd14..475ff46 100644 --- a/arch/mips/oprofile/op_model_loongson2.c +++ b/arch/mips/oprofile/op_model_loongson2.c @@ -1,7 +1,7 @@ /* * Loongson2 performance counter driver for oprofile * - * Copyright (C) 2009 Lemote Inc. & Insititute of Computing Technology + * Copyright (C) 2009 Lemote Inc. * Author: Yanhua <yanh@xxxxxxxxxx> * Author: Wu Zhangjin <wuzj@xxxxxxxxxx> * @@ -125,6 +125,9 @@ static irqreturn_t loongson2_perfcount_handler(int irq, void *dev_id) */ /* Check whether the irq belongs to me */ + enabled = read_c0_perfcnt() & LOONGSON2_PERFCNT_INT_EN; + if (!enabled) + return IRQ_NONE; enabled = reg.cnt1_enabled | reg.cnt2_enabled; if (!enabled) return IRQ_NONE; -- 1.6.2.1
