36 lines
900 B
Diff
36 lines
900 B
Diff
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--- a/arch/mips/oprofile/op_model_mipsxx.c
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+++ b/arch/mips/oprofile/op_model_mipsxx.c
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@@ -298,6 +298,11 @@ static void reset_counters(void *arg)
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}
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}
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+static irqreturn_t mipsxx_perfcount_int(int irq, void *dev_id)
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+{
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+ return mipsxx_perfcount_handler();
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+}
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+
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static int __init mipsxx_init(void)
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{
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int counters;
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@@ -374,6 +379,10 @@ static int __init mipsxx_init(void)
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save_perf_irq = perf_irq;
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perf_irq = mipsxx_perfcount_handler;
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+ if (cp0_perfcount_irq >= 0)
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+ return request_irq(cp0_perfcount_irq, mipsxx_perfcount_int,
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+ IRQF_SHARED, "Perfcounter", save_perf_irq);
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+
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return 0;
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}
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@@ -381,6 +390,9 @@ static void mipsxx_exit(void)
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{
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int counters = op_model_mipsxx_ops.num_counters;
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+ if (cp0_perfcount_irq >= 0)
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+ free_irq(cp0_perfcount_irq, save_perf_irq);
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+
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counters = counters_per_cpu_to_total(counters);
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on_each_cpu(reset_counters, (void *)(long)counters, 1);
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