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

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Date:   Thu, 29 Sep 2022 16:33:00 +0800
From:   Peng Fan <peng.fan@....nxp.com>
To:     Tanmay Shah <tanmays@....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 9/28/2022 11:42 PM, Tanmay Shah wrote:
> 
> 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.

Yes, I see. linux-next/master would force update every day, so I am not
sure base-commit would work for linux-next/master branch.

Thanks,
Peng.

> 
> 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
>>