From: vladimir.murzin@arm•com (Vladimir Murzin)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v2 0/8] ARM: V7M: Support caches
Date: Tue, 30 Aug 2016 17:39:20 +0100 [thread overview]
Message-ID: <57C5B6B8.7020203@arm.com> (raw)
In-Reply-To: <8a0c4963-4f22-9914-b2c8-046bba8b9764@st.com>
Hi Alex,
On 30/08/16 16:47, Alexandre Torgue wrote:
> Hi Vladimir,
>
> On 08/18/2016 04:57 PM, Vladimir Murzin wrote:
>> On 18/08/16 15:53, Russell King - ARM Linux wrote:
>>> On Thu, Aug 18, 2016 at 01:45:52PM +0100, Vladimir Murzin wrote:
>>>> This patch set allows M-class cpus benefit of optional cache support.
>>>> It originally was written by Jonny, I've been keeping it locally mainly
>>>> rebasing over Linux versions.
>>>>
>>>> The original idea behind patches was to reuse existing cache handling
>>>> code from v7A/R with help of extra macros to factor out cache handling
>>>> logic (v7M cache operations are provided via memory mapped interface
>>>> rather than co-processor instructions).
>>>> However, that idea was rejected and starting form this (v2) version
>>>> V7M cache logic lives into file and macros to indirect memory-mapped
>>>> operations stay there locally since they make it easier to follow the
>>>> code.
>>>>
>>>> Along with the v7M cache support the first user (Cortex-M7) is
>>>> introduced.
>>>>
>>>> Patches were tested on MPS2 platform with Cortex-M3/M4/M7. The later
>>>> one showed significant boot speed-up.
>>>
>>> >From a quick read through, the approach looks sane, and I think I'm
>>> now happy with these.
>>>
>>
>> Thanks!
>>
>> Is it acceptable if patches hang on a list for awhile, so people (I'm
>> looking at Alex and Szemz?) can test them?
>
> I just tested this v2 patch set. I don't see behavior issues.
> You can add:
> Tested-by: Alexandre TORGUE <alexandre.torgue@st•com>
>
Thanks a lot for testing, Alex!
Cheers
Vladimir
> Regards
>
> Alex
>
>>
>> Vladimir
>>
>>> Thanks.
>>>
>>
>
>
prev parent reply other threads:[~2016-08-30 16:39 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-18 12:45 [PATCH v2 0/8] ARM: V7M: Support caches Vladimir Murzin
2016-08-18 12:45 ` [PATCH v2 1/8] ARM: factor out CSSELR/CCSIDR operations that use cp15 directly Vladimir Murzin
2016-08-18 12:45 ` [PATCH v2 2/8] ARM: V7M: Add addresses for mem-mapped V7M cache operations Vladimir Murzin
2016-08-18 12:45 ` [PATCH v2 3/8] ARM: V7M: Add support for reading the CTR with read_cpuid_cachetype() Vladimir Murzin
2016-08-18 12:45 ` [PATCH v2 4/8] ARM: V7M: fix notrace variant of save_and_disable_irqs Vladimir Murzin
2016-08-18 12:45 ` [PATCH v2 5/8] ARM: V7M: introduce cache operations Vladimir Murzin
2016-08-18 12:45 ` [PATCH v2 6/8] ARM: V7M: Wire up caches for V7M processors with cache support Vladimir Murzin
2016-08-18 12:45 ` [PATCH v2 7/8] ARM: V7M: Indirect proc_info construction for V7M CPUs Vladimir Murzin
2016-08-18 12:46 ` [PATCH v2 8/8] ARM: V7M: Add support for the Cortex-M7 processor Vladimir Murzin
2016-08-18 14:53 ` [PATCH v2 0/8] ARM: V7M: Support caches Russell King - ARM Linux
2016-08-18 14:57 ` Vladimir Murzin
2016-08-18 15:11 ` Russell King - ARM Linux
2016-08-30 16:40 ` Vladimir Murzin
2016-08-25 10:15 ` Szemző András
2016-08-25 10:24 ` Vladimir Murzin
2016-08-27 16:53 ` Joachim Eastwood
2016-08-30 8:26 ` Vladimir Murzin
2016-08-30 15:47 ` Alexandre Torgue
2016-08-30 16:39 ` Vladimir Murzin [this message]
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