linux-kernel - Re: [PATCH v3 17/47] arm_mpam: resctrl: Implement resctrl_arch_reset_all

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Message-ID: <de0e4d8b-c9d2-4493-9379-ec16de0af795@arm.com>
Date: Tue, 13 Jan 2026 14:58:41 +0000
From: Ben Horgan <ben.horgan@....com>
To: Jonathan Cameron <jonathan.cameron@...wei.com>
Cc: amitsinght@...vell.com, baisheng.gao@...soc.com,
 baolin.wang@...ux.alibaba.com, carl@...amperecomputing.com,
 dave.martin@....com, david@...nel.org, dfustini@...libre.com,
 fenghuay@...dia.com, gshan@...hat.com, james.morse@....com,
 kobak@...dia.com, lcherian@...vell.com,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
 peternewman@...gle.com, punit.agrawal@....qualcomm.com,
 quic_jiles@...cinc.com, reinette.chatre@...el.com, rohit.mathew@....com,
 scott@...amperecomputing.com, sdonthineni@...dia.com,
 tan.shaopeng@...itsu.com, xhao@...ux.alibaba.com, catalin.marinas@....com,
 will@...nel.org, corbet@....net, maz@...nel.org, oupton@...nel.org,
 joey.gouly@....com, suzuki.poulose@....com, kvmarm@...ts.linux.dev,
 Zeng Heng <zengheng4@...wei.com>
Subject: Re: [PATCH v3 17/47] arm_mpam: resctrl: Implement
 resctrl_arch_reset_all_ctrls()

Hi Jonathan, Zeng,

On 1/13/26 14:46, Jonathan Cameron wrote:
> On Mon, 12 Jan 2026 16:58:44 +0000
> Ben Horgan <ben.horgan@....com> wrote:
> 
>> From: James Morse <james.morse@....com>
>>
>> We already have a helper for resetting an mpam class and component.  Hook
>> it up to resctrl_arch_reset_all_ctrls() and the domain offline path.
>>
>> Signed-off-by: James Morse <james.morse@....com>
>> Signed-off-by: Ben Horgan <ben.horgan@....com>
> 
> There was a question from Zhengheng on v2 that doesn't seem to be addressed
> and I'm not seeing a reply on list.  Maybe an email snafu?

Yes, sorry! For some reason I don't get his emails. :( It happened on
the base mpam driver series too. I'll keep a better look at lore and
reply to his v2 query.

> 
> https://lore.kernel.org/all/20260109034506.1176234-1-zengheng4@huawei.com/
> 
> Please +CC zhengheng on future versions if we need them!

Will do. Should be CC'd on this version too. I don't if there is an
email issue with that too.

Thanks,

Ben