Patchwork [1/1] sparc32,leon: add notify_cpu_starting()

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Submitter Konrad Eisele
Date April 20, 2012, 6:28 a.m.
Message ID <1334903312-18526-1-git-send-email-konrad@gaisler.com>
Download mbox | patch
Permalink /patch/153949/
State Accepted
Delegated to: David Miller
Headers show

Comments

Konrad Eisele - April 20, 2012, 6:28 a.m.
From: Yong Zhang <yong.zhang@windriver.com>

Otherwise cpu_active_mask will not set, which lead to other issue.

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Signed-off-by: Konrad Eisele <konrad@gaisler.com>
---
 arch/sparc/kernel/leon_smp.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
Konrad Eisele - April 20, 2012, 6:32 a.m.
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@windriver.com>
>
> Otherwise cpu_active_mask will not set, which lead to other issue.
>
> Signed-off-by: Yong Zhang<yong.zhang0@gmail.com>
> Signed-off-by: Konrad Eisele<konrad@gaisler.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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David Miller - April 20, 2012, 7:06 a.m.
From: Konrad Eisele <konrad@gaisler.com>
Date: Fri, 20 Apr 2012 08:32:50 +0200

> 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.

I'll take care of it.
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Patch

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();