linux-kernel - Re: [PATCH] MIPS: fix tc

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Message-ID: <CAJFZqHxBE6wc2hJd=mKfx9D59S73qxJZFvbfqgmLkWZvtR7f_A@mail.gmail.com>
Date:	Sat, 28 Jul 2012 17:08:59 +0800
From:	RongQing Li <roy.qing.li@...il.com>
To:	linux-mips@...ux-mips.org
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] MIPS: fix tc_id calculation

Any advice

2012/7/2  <roy.qing.li@...il.com>:
> From: RongQing.Li <roy.qing.li@...il.com>
>
> Now the tc_id is:
>   (read_c0_tcbind() >> TCBIND_CURTC_SHIFT) & TCBIND_CURTC;
> After substitute macro:
>   (read_c0_tcbind() >> 21) & ((0xff) << 21)
> It should be:
>   (read_c0_tcbind() & ((0xff)<< 21)) >>21
>
> Signed-off-by: RongQing.Li <roy.qing.li@...il.com>
> ---
>  arch/mips/kernel/smp-cmp.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/arch/mips/kernel/smp-cmp.c b/arch/mips/kernel/smp-cmp.c
> index e7e03ec..afc379c 100644
> --- a/arch/mips/kernel/smp-cmp.c
> +++ b/arch/mips/kernel/smp-cmp.c
> @@ -102,7 +102,7 @@ static void cmp_init_secondary(void)
>         c->vpe_id = (read_c0_tcbind() >> TCBIND_CURVPE_SHIFT) & TCBIND_CURVPE;
>  #endif
>  #ifdef CONFIG_MIPS_MT_SMTC
> -       c->tc_id  = (read_c0_tcbind() >> TCBIND_CURTC_SHIFT) & TCBIND_CURTC;
> +       c->tc_id  = (read_c0_tcbind() & TCBIND_CURTC) >> TCBIND_CURTC_SHIFT;
>  #endif
>  }
>
> --
> 1.7.1
>
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