Hi, Ralf
Seems you have accepted this patch but forgot to apply it, could you
please apply it, thanks ;)
Best Regards,
Wu Zhangjin
On Fri, 2010-05-07 at 01:03 +0800, Wu Zhangjin wrote:
> When exiting from loongson2_exit(), we need to reset the counter
> register too, this patch adds a function reset_counters() to do it, by
> the way, this function will be shared by Perf.
>
> Signed-off-by: Wu Zhangjin <wuzhangjin@xxxxxxxxx>
> ---
> arch/mips/oprofile/op_model_loongson2.c | 8 +++++++-
> 1 files changed, 7 insertions(+), 1 deletions(-)
>
> diff --git a/arch/mips/oprofile/op_model_loongson2.c b/arch/mips/oprofile/op_model_loongson2.c
> index fa3bf66..01f91a3 100644
> --- a/arch/mips/oprofile/op_model_loongson2.c
> +++ b/arch/mips/oprofile/op_model_loongson2.c
> @@ -51,6 +51,12 @@ static char *oprofid = "LoongsonPerf";
> static irqreturn_t loongson2_perfcount_handler(int irq, void *dev_id);
> /* Compute all of the registers in preparation for enabling profiling. */
>
> +static void reset_counters(void *arg)
> +{
> + write_c0_perfctrl(0);
> + write_c0_perfcnt(0);
> +}
> +
> static void loongson2_reg_setup(struct op_counter_config *cfg)
> {
> unsigned int ctrl = 0;
> @@ -157,7 +163,7 @@ static int __init loongson2_init(void)
>
> static void loongson2_exit(void)
> {
> - write_c0_perfctrl(0);
> + reset_counters(NULL);
> free_irq(LOONGSON2_PERFCNT_IRQ, oprofid);
> }
>
