From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [Suggestion] ARM64: kernel: compiling issue, need implement cmpxchg64 with assembler language.
Date: Fri, 19 Apr 2013 14:12:54 +0200 [thread overview]
Message-ID: <201304191412.54601.arnd@arndb.de> (raw)
In-Reply-To: <51712E5E.2020809@asianux.com>
On Friday 19 April 2013, Chen Gang wrote:
> in arch/arm64/include/asm, not define the function cmpxchg64
>
> when compiling with allmodconfig,
> drivers/block/blockconsole.c will need this function.
>
> I am not quite familiar with ARM64 (neither ARM64 assembler)
>
> can any member helps to send related patch ?
> if no one have time to send related patch, I should try.
> and I am glad to try, but need additional time resources,
> if I try, I should finish it within this month (2013-4-30).
>
> welcome any suggestions or completions.
cmpxchg64 is the same as cmpxchg on 64-bit platforms, can't the
driver be changed to use the latter?
Arnd
WARNING: multiple messages have this Message-ID (diff)
From: Arnd Bergmann <arnd@arndb.de>
To: Chen Gang <gang.chen@asianux.com>
Cc: Catalin Marinas <Catalin.Marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Tony Lindgren <tony@atomide.com>,
"olof@lixom.net" <olof@lixom.net>,
Santosh Shilimkar <santosh.shilimkar@ti.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [Suggestion] ARM64: kernel: compiling issue, need implement cmpxchg64 with assembler language.
Date: Fri, 19 Apr 2013 14:12:54 +0200 [thread overview]
Message-ID: <201304191412.54601.arnd@arndb.de> (raw)
In-Reply-To: <51712E5E.2020809@asianux.com>
On Friday 19 April 2013, Chen Gang wrote:
> in arch/arm64/include/asm, not define the function cmpxchg64
>
> when compiling with allmodconfig,
> drivers/block/blockconsole.c will need this function.
>
> I am not quite familiar with ARM64 (neither ARM64 assembler)
>
> can any member helps to send related patch ?
> if no one have time to send related patch, I should try.
> and I am glad to try, but need additional time resources,
> if I try, I should finish it within this month (2013-4-30).
>
> welcome any suggestions or completions.
cmpxchg64 is the same as cmpxchg on 64-bit platforms, can't the
driver be changed to use the latter?
Arnd
next prev parent reply other threads:[~2013-04-19 12:12 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-19 11:45 [Suggestion] ARM64: kernel: compiling issue, need implement cmpxchg64 with assembler language Chen Gang
2013-04-19 11:45 ` Chen Gang
2013-04-19 12:12 ` Arnd Bergmann [this message]
2013-04-19 12:12 ` Arnd Bergmann
2013-04-20 2:28 ` Chen Gang
2013-04-20 2:28 ` Chen Gang
2013-04-20 7:32 ` Arnd Bergmann
2013-04-20 7:32 ` Arnd Bergmann
2013-04-22 5:08 ` Chen Gang
2013-04-22 5:08 ` Chen Gang
2013-04-22 5:08 ` [PATCH] ARM64: kernel: compiling issue, define cmpxchg64 and cmpxchg64_local for outside using Chen Gang
2013-04-22 5:08 ` Chen Gang
2013-04-23 10:48 ` Catalin Marinas
2013-04-23 10:48 ` Catalin Marinas
2013-04-23 10:54 ` Chen Gang
2013-04-23 10:54 ` Chen Gang
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