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

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Date:   Wed, 21 Sep 2022 13:09:04 +0800
From:   Zong Li <zong.li@...ive.com>
To:     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 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.