From mboxrd@z Thu Jan  1 00:00:00 1970
From: catalin.marinas@arm.com (Catalin Marinas)
Date: Mon, 6 Dec 2010 17:51:39 +0000
Subject: [PATCH 1/2] ARM: implement support for read-mostly sections
In-Reply-To: <20101205230434.GI9138@n2100.arm.linux.org.uk>
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To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On 5 December 2010 23:04, Russell King - ARM Linux
<linux@arm.linux.org.uk> wrote:
> On Sun, Dec 05, 2010 at 10:18:27PM +0000, Catalin Marinas wrote:
>> On 5 December 2010 11:43, Russell King - ARM Linux
>> <linux@arm.linux.org.uk> wrote:
>> > diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
>> > index cead889..1581f6d 100644
>> > --- a/arch/arm/kernel/vmlinux.lds.S
>> > +++ b/arch/arm/kernel/vmlinux.lds.S
>> > @@ -167,6 +167,7 @@ SECTIONS
>> >
>> > ? ? ? ? ? ? ? ?NOSAVE_DATA
>> > ? ? ? ? ? ? ? ?CACHELINE_ALIGNED_DATA(32)
>> > + ? ? ? ? ? ? ? READ_MOSTLY_DATA(32)
>>
>> Should we change the alignments to 64?
>
> When we have some way to tell vmlinux.lds.S what the cache line size is.

I haven't tried but can we not use CONFIG_ARM_L1_CACHE_SHIFT?

-- 
Catalin