From: gregory.clement@free-electrons•com (Gregory CLEMENT)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH V6 3/6] arm: cache-l2x0: add support for Aurora L2 cache ctrl
Date: Tue, 23 Oct 2012 12:23:10 +0200 [thread overview]
Message-ID: <5086700E.10702@free-electrons.com> (raw)
In-Reply-To: <20121023100057.GS21164@n2100.arm.linux.org.uk>
On 10/23/2012 12:00 PM, Russell King - ARM Linux wrote:
> On Tue, Oct 23, 2012 at 11:43:02AM +0200, Gregory CLEMENT wrote:
>> On 10/23/2012 11:01 AM, Russell King - ARM Linux wrote:
>>> On Thu, Sep 27, 2012 at 11:35:23AM +0200, Gregory CLEMENT wrote:
>>>> Aurora Cache Controller was designed to be compatible with the ARM L2
>>>> Cache Controller. It comes with some difference or improvement such
>>>> as:
>>>> - no cache id part number available through hardware (need to get it
>>>> by the DT).
>>>> - always write through mode available.
>>>> - two flavors of the controller outer cache and system cache (meaning
>>>> maintenance operations on L1 are broadcasted to the L2 and L2
>>>> performs the same operation).
>>>> - in outer cache mode, the cache maintenance operations are improved and
>>>> can be done on a range inside a page and are not limited to a cache
>>>> line.
>>>
>>> This adds new build warnings:
>>>
>>> arch/arm/mm/cache-l2x0.c:328:13: warning: 'aurora_inv_range' defined but not used
>>> arch/arm/mm/cache-l2x0.c:347:13: warning: 'aurora_clean_range' defined but not used
>>> arch/arm/mm/cache-l2x0.c:365:13: warning: 'aurora_flush_range' defined but not used
>>>
>>> to the realview build (non-DT). Please investigate, thanks.
>>
>> OK I found the problem: aurora cache support is new so it is only
>> enable with device tree support. I moved all this functions in the
>> under OF_CONFIG (see the patch below). Do you want I submit it on the
>> patch system, or can you get it directly from this email?
>
> Easier by the patch system, and much less likely to get buried and lost
> between now and when I do the update, thanks.
>
OK, the initial patch 7547/1 was superseded by the patch 7547/2 that I have just
pushed in the patch system. I hope I have done it right.
Thanks,
--
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
next prev parent reply other threads:[~2012-10-23 10:23 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-26 16:02 [PATCH V5] Add support for Aurora L2 Cache Controller Gregory CLEMENT
2012-09-26 16:02 ` [PATCH V5 1/6] arm: cache-l2x0: make outer_cache_fns a field of l2x0_of_data Gregory CLEMENT
2012-09-26 16:14 ` Jason Cooper
2012-09-26 16:33 ` Gregory CLEMENT
2012-09-26 16:02 ` [PATCH V5 2/6] arm: cache-l2x0: add an optional register to save/restore Gregory CLEMENT
2012-09-26 16:02 ` [PATCH V5 3/6] arm: cache-l2x0: add support for Aurora L2 cache ctrl Gregory CLEMENT
2012-09-26 17:11 ` Catalin Marinas
2012-09-27 9:35 ` Gregory CLEMENT
2012-09-27 9:35 ` [PATCH V6 " Gregory CLEMENT
2012-10-23 9:01 ` Russell King - ARM Linux
2012-10-23 9:43 ` Gregory CLEMENT
2012-10-23 10:00 ` Russell King - ARM Linux
2012-10-23 10:23 ` Gregory CLEMENT [this message]
2012-11-04 22:32 ` Russell King - ARM Linux
2012-11-05 23:50 ` Gregory CLEMENT
2012-11-06 0:24 ` Russell King - ARM Linux
2012-11-06 0:59 ` Gregory CLEMENT
2012-11-08 14:08 ` Arnd Bergmann
2012-11-08 14:21 ` Russell King - ARM Linux
2012-11-08 14:42 ` Arnd Bergmann
2012-09-26 16:02 ` [PATCH V5 4/6] arm: mvebu: add L2 cache support Gregory CLEMENT
2012-09-29 23:20 ` Olof Johansson
2012-09-26 16:02 ` [PATCH V5 5/6] arm: mvebu: add Aurora L2 Cache Controller to the DT Gregory CLEMENT
2012-09-26 16:02 ` [PATCH V5 6/6] arm: l2x0: add aurora related properties to OF binding Gregory CLEMENT
2012-09-26 16:08 ` [PATCH V5] Add support for Aurora L2 Cache Controller Gregory CLEMENT
2012-09-26 16:24 ` Jason Cooper
2012-09-26 16:40 ` Gregory CLEMENT
2012-09-26 18:48 ` Jason Cooper
2012-09-27 7:31 ` Gregory CLEMENT
2012-09-30 23:55 ` Jason Cooper
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