linux-kernel - Re: [PATCH 1/1] sparc32,leon: add notify_cpu

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Message-ID: <4F910312.3010900@gaisler.com>
Date:	Fri, 20 Apr 2012 08:32:50 +0200
From:	Konrad Eisele <konrad@...sler.com>
To:	yong.zhang0@...il.com
CC:	sam@...nborg.org, a.p.zijlstra@...llo.nl, mingo@...e.hu,
	linux-kernel@...r.kernel.org, sparclinux@...r.kernel.org,
	davem@...emloft.net, daniel@...sler.com,
	Yong Zhang <yong.zhang@...driver.com>
Subject: Re: [PATCH 1/1] sparc32,leon: add notify_cpu_starting()

Hello Yong,
Thank you for the patch, it works. The SMP is fully
functional again for sparc-leon. I just added a "#include<linux/cpu.h>"
to avoid compiler warning.
Please someone in the cc-list, apply.
-- Greetings Konrad

Konrad Eisele wrote:
> From: Yong Zhang<yong.zhang@...driver.com>
>
> Otherwise cpu_active_mask will not set, which lead to other issue.
>
> Signed-off-by: Yong Zhang<yong.zhang0@...il.com>
> Signed-off-by: Konrad Eisele<konrad@...sler.com>
> ---
>   arch/sparc/kernel/leon_smp.c |    3 +++
>   1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c
> index 1210fde..160cac9 100644
> --- a/arch/sparc/kernel/leon_smp.c
> +++ b/arch/sparc/kernel/leon_smp.c
> @@ -23,6 +23,7 @@
>   #include<linux/pm.h>
>   #include<linux/delay.h>
>   #include<linux/gfp.h>
> +#include<linux/cpu.h>
>
>   #include<asm/cacheflush.h>
>   #include<asm/tlbflush.h>
> @@ -78,6 +79,8 @@ void __cpuinit leon_callin(void)
>   	local_flush_tlb_all();
>   	leon_configure_cache_smp();
>
> +	notify_cpu_starting(cpuid);
> +
>   	/* Get our local ticker going. */
>   	smp_setup_percpu_timer();
>

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