linux-kernel - Re: [PATCH v5 0/7] Use composable cache instead of L2 cache

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Message-ID: <f91748e8-bec6-e19f-1b1a-dd6b0bda59cb@codethink.co.uk>
Date:   Tue, 4 Oct 2022 15:20:51 +0100
From:   Ben Dooks <ben.dooks@...ethink.co.uk>
To:     Zong Li <zong.li@...ive.com>, Rob Herring <robh+dt@...nel.org>,
        krzysztof.kozlowski+dt@...aro.org,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Greentime Hu <greentime.hu@...ive.com>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Ben Dooks <ben.dooks@...ive.com>, bp@...en8.de,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        linux-riscv <linux-riscv@...ts.infradead.org>,
        linux-edac@...r.kernel.org,
        "linux-kernel@...r.kernel.org List" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 0/7] Use composable cache instead of L2 cache

On 21/09/2022 06:09, Zong Li wrote:
> On Tue, Sep 13, 2022 at 2:18 PM Zong Li <zong.li@...ive.com> wrote:
>>
>> Since composable cache may be L3 cache if private L2 cache exists, we
>> should use its original name "composable cache" to prevent confusion.
>>
>> This patchset contains the modification which is related to ccache, such
>> as DT binding and EDAC driver.
>>
>> The DT binding is based on top of Conor's patch, it has got ready for
>> merging, and it looks that it would be taken into the next few 6.0-rc
>> version. If there is any change, the next version of this series will be
>> posted as well.
>> https://lore.kernel.org/linux-riscv/20220825180417.1259360-2-mail@conchuod.ie/
>>
>> Change log in v5:
>>   - Add a patch to modify aux vector for sysconf
>>
>> Change log in v4:
>>   - Change the return value from from ENODEV to ENOENT
>>   - Apply pr_fmt refinement to all pr_err
>>
>> Change log in v3:
>>   - Merged the EDAC patch into L2 rename patch
>>   - Define the macro for register shift and refine the relative code
>>   - Fix some indent issues
>>
>> Change log in v2:
>>   - Separate the rename and diff to different patches
>>   - Rebase the dt-bindings based on Conor's modification
>>   - Include the patches of Ben for refinement of printing message
>>
>> Ben Dooks (2):
>>    soc: sifive: ccache: reduce printing on init
>>    soc: sifive: ccache: use pr_fmt() to remove CCACHE: prefixes
>>
>> Greentime Hu (2):
>>    soc: sifive: ccache: Rename SiFive L2 cache to Composable cache.
>>    riscv: Add cache information in AUX vector
>>
>> Zong Li (3):
>>    dt-bindings: sifive-ccache: change Sifive L2 cache to Composable cache
>>    soc: sifive: ccache: determine the cache level from dts
>>    soc: sifive: ccache: define the macro for the register shifts
>>
>>   ...five-l2-cache.yaml => sifive,ccache0.yaml} |  28 ++-
>>   arch/riscv/include/asm/elf.h                  |   4 +
>>   arch/riscv/include/uapi/asm/auxvec.h          |   4 +-
>>   drivers/edac/Kconfig                          |   2 +-
>>   drivers/edac/sifive_edac.c                    |  12 +-
>>   drivers/soc/sifive/Kconfig                    |   6 +-
>>   drivers/soc/sifive/Makefile                   |   2 +-
>>   .../{sifive_l2_cache.c => sifive_ccache.c}    | 200 ++++++++++--------
>>   .../{sifive_l2_cache.h => sifive_ccache.h}    |  16 +-
>>   9 files changed, 158 insertions(+), 116 deletions(-)
>>   rename Documentation/devicetree/bindings/riscv/{sifive-l2-cache.yaml => sifive,ccache0.yaml} (83%)
>>   rename drivers/soc/sifive/{sifive_l2_cache.c => sifive_ccache.c} (31%)
>>   rename include/soc/sifive/{sifive_l2_cache.h => sifive_ccache.h} (12%)
>>
>> --
>> 2.17.1
>>
> 
> Hi Palmer,
> I was wondering if this series looks good to you, and could you please
> help us to take it into riscv-tree?
> Thanks.


I've given this series some basic testing, so would also like to see
this sorted out.

-- 
Ben Dooks				http://www.codethink.co.uk/
Senior Engineer				Codethink - Providing Genius

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