linux-kernel - Re: [PATCH V8 0/2] remoteproc: support self recovery

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Date:   Wed, 28 Sep 2022 08:42:50 -0700
From:   Tanmay Shah <tanmays@....com>
To:     "Peng Fan (OSS)" <peng.fan@....nxp.com>, andersson@...nel.org,
        mathieu.poirier@...aro.org, arnaud.pouliquen@...s.st.com
Cc:     linux-remoteproc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Peng Fan <peng.fan@....com>
Subject: Re: [PATCH V8 0/2] remoteproc: support self recovery


On 9/27/22 11:47 PM, Peng Fan (OSS) wrote:
> CAUTION: This message has originated from an External Source. Please use proper judgment and caution when opening attachments, clicking links, or responding to this email.
>
>
> From: Peng Fan <peng.fan@....com>
>
> V8:
>   Rebased on linux-next/master tag: next-20220927

Hi Peng,

Thanks for your patch.

Tags are useful, but more accurate method is to use --base option of git 
format-patch.

This can inform others what base-commit was used. It is also useful when 
you have prerequisite patches.

Hope this helps.

Thanks,

Tanmay

>
> V7:
>   Per comments from Arnaud Pouliquen:
>     Typo fixes
>     Added A-b tag
>
> V6:
>   Rename rproc_firmware_recovery to rproc_boot_recovery
>   Drop the unlock/lock when do reproc_attach_recovery
>
> V5:
>   Rename RPROC_FEAT_ATTACH_RECOVERY to RPROC_FEAT_ATTACH_ON_RECOVERY
>   Add kerneldoc for rproc features
>   Change rproc_set_feature to return int type and add a max feature check
>   Use __rproc_detach and __rproc_attach when do attach recovery
>   https://patchwork.kernel.org/project/linux-remoteproc/cover/20220615032048.465486-1-peng.fan@oss.nxp.com/
>
> V4:
>    Based on Bjorn's comments on V2-2
>    Move the rproc_has_feature/rproc_set_feature to remoteproc_internal.h and
>   Keep rproc_features still in remoteproc.h, because we use
>   RPROC_MAX_FEATURES to declare bitmap.
>    Update commit log for patch 2/2, and add comments
>
>    https://patchwork.kernel.org/project/linux-remoteproc/cover/20220323034405.976643-1-peng.fan@oss.nxp.com/
>
> V3:
>   Resend the wrong labeled patchset
>   https://patchwork.kernel.org/project/linux-remoteproc/list/?series=621311
>
>   Write a cover-letter
>   To i.MX8QM/QXP, they have a M4 core self-recovery capability without
>   Linux loading firmware. The self recovery is done by
>   SCU(System Control Unit). Current remoteproc framework only support Linux
>   help recovery remote processor(stop, loading firmware, start). This
>   patchset is support remote processor self recovery(attach recovery).
>
>   In order to avoid introducing a new variable(bool support_self_recovery),
>   patch 1 introduce a new function, rproc_has_feature to make code easy to
>   extend, cleaner, such as we could move "bool has_iommu" to
>   rproc_has_feature(rproc, RPROC_FEAT_IOMMU).
>
>   Patch 2 is introduce a new function rproc_attach_recovery for
>   self recovery, the original logic move to rproc_firmware_recovery meaning
>   needs linux to help recovery.
>
>   V2-version 2:
>   https://patchwork.kernel.org/project/linux-remoteproc/list/?series=621311
>   Introduce rproc_has_feature
>
>   V2-version 1:
>   https://patchwork.kernel.org/project/linux-remoteproc/patch/20220126085120.3397450-1-peng.fan@oss.nxp.com/
>   Nothing change in V2.
>   Only move this patch out from
>   https://patchwork.kernel.org/project/linux-remoteproc/list/?series=604364
>
> Peng Fan (2):
>    remoteproc: introduce rproc features
>    remoteproc: support attach recovery after rproc crash
>
>   drivers/remoteproc/remoteproc_core.c     | 62 ++++++++++++++++--------
>   drivers/remoteproc/remoteproc_internal.h | 15 ++++++
>   include/linux/remoteproc.h               | 16 ++++++
>   3 files changed, 74 insertions(+), 19 deletions(-)
>
> --
> 2.37.1
>