From: alexandre.torgue@st.com (Alexandre Torgue)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 00/10] ARM: V7M: Support caches
Date: Mon, 13 Jun 2016 18:29:09 +0200 [thread overview]
Message-ID: <575EDF55.2020304@st.com> (raw)
In-Reply-To: <575EDD28.40500@arm.com>
Hi Vladimir,
On 06/13/2016 06:19 PM, Vladimir Murzin wrote:
> Hi Alex,
>
> On 13/06/16 17:09, Alexandre Torgue wrote:
>> Hi Vladimir,
>>
>> On 06/13/2016 05:02 PM, Vladimir Murzin wrote:
>>> Hi,
>>>
>>> This patch set allows M-class cpus benefit of optional cache support.
>>> It originaly was written by Jonny, I've been keeping it localy mainly
>>> rebasing over Linux versions.
>>>
>>> The main idea behind patches is to reuse existing cache handling code
>>> from v7A/R. In case v7M cache operations are provided via memory
>>> mapped interface rather than co-processor instructions, so extra
>>> macros have been introduced to factor out cache handling logic and
>>> low-level operations.
>>>
>>> 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.
>>>
>>> Based on 4.7-rc3.
>>>
>>> Thanks!
>>> Vladimir
>>>
>>
>> Thanks for the series.
>> Did you change something in those patches compare to patches you sent in
>> the RFC ?
>
> Only 04, 05, 06 have been changed (each has it's own changelog included).
>
> I did try to hammer patches because of your report of instability with
> caches on, but all run fine... so nothing has been changed in regard of
> your case.
>
Ok. Thanks for this input. From now, I will use this series to perform
my tests. I will continue to debug my instabilities this week.
I will let you know.
Regards
Alex
next prev parent reply other threads:[~2016-06-13 16:29 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-13 15:02 [PATCH 00/10] ARM: V7M: Support caches Vladimir Murzin
2016-06-13 15:03 ` [PATCH 01/10] ARM: factor out CSSELR/CCSIDR operations that use cp15 directly Vladimir Murzin
2016-06-13 15:03 ` [PATCH 02/10] ARM: V7M: Make read_cpuid() generally available on V7M Vladimir Murzin
2016-06-13 15:15 ` Russell King - ARM Linux
2016-06-13 16:21 ` Vladimir Murzin
2016-06-13 15:03 ` [PATCH 03/10] ARM: V7M: Add addresses for mem-mapped V7M cache operations Vladimir Murzin
2016-06-13 15:03 ` [PATCH 04/10] ARM: V7M: Add support for reading the CTR with CPUID_CACHETYPE Vladimir Murzin
2016-06-13 15:03 ` [PATCH 05/10] ARM: Extract cp15 operations from cache flush code Vladimir Murzin
2016-06-13 15:03 ` [PATCH 06/10] ARM: V7M: Implement cache macros for V7M Vladimir Murzin
2016-06-13 15:18 ` Russell King - ARM Linux
2016-06-13 16:27 ` Vladimir Murzin
2016-06-13 16:29 ` Russell King - ARM Linux
2016-06-13 16:34 ` Vladimir Murzin
2016-06-13 15:03 ` [PATCH 07/10] ARM: V7M: fix notrace variant of save_and_disable_irqs Vladimir Murzin
2016-06-13 15:03 ` [PATCH 08/10] ARM: V7M: Wire up caches for V7M processors with cache support Vladimir Murzin
2016-06-13 15:03 ` [PATCH 09/10] ARM: V7M: Indirect proc_info construction for V7M CPUs Vladimir Murzin
2016-06-13 15:03 ` [PATCH 10/10] ARM: V7M: Add support for the Cortex-M7 processor Vladimir Murzin
2016-06-13 16:09 ` [PATCH 00/10] ARM: V7M: Support caches Alexandre Torgue
2016-06-13 16:19 ` Vladimir Murzin
2016-06-13 16:29 ` Alexandre Torgue [this message]
2016-06-15 10:14 ` Alexandre Torgue
2016-06-15 12:43 ` Vladimir Murzin
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