linux-kernel - Re: [External] [PATCH RFC 00/19] RISC-V: QoS: add CBQRI resctrl interface

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Message-ID: <aXfKYokyKJ8oassV@x1>
Date: Mon, 26 Jan 2026 12:11:14 -0800
From: Drew Fustini <fustini@...nel.org>
To: yunhui cui <cuiyunhui@...edance.com>
Cc: Paul Walmsley <pjw@...nel.org>, Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>, Alexandre Ghiti <alex@...ti.fr>,
	Radim Krčmář <rkrcmar@...tanamicro.com>,
	Samuel Holland <samuel.holland@...ive.com>,
	Adrien Ricciardi <aricciardi@...libre.com>,
	Nicolas Pitre <npitre@...libre.com>,
	Kornel Dulęba <mindal@...ihalf.com>,
	Atish Patra <atish.patra@...ux.dev>,
	Atish Kumar Patra <atishp@...osinc.com>,
	Vasudevan Srinivasan <vasu@...osinc.com>,
	Ved Shanbhogue <ved@...osinc.com>,
	Chen Pei <cp0613@...ux.alibaba.com>,
	Liu Zhiwei <zhiwei_liu@...ux.alibaba.com>,
	Weiwei Li <liwei1518@...il.com>, guo.wenjia23@....com.cn,
	liu.qingtao2@....com.cn, Conor Dooley <conor+dt@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Rob Herring <robh+dt@...nel.org>,
	Reinette Chatre <reinette.chatre@...el.com>,
	Tony Luck <tony.luck@...el.com>, Babu Moger <babu.moger@....com>,
	Peter Newman <peternewman@...gle.com>,
	Fenghua Yu <fenghua.yu@...el.com>,
	James Morse <james.morse@....com>, Ben Horgan <ben.horgan@....com>,
	Dave Martin <Dave.Martin@....com>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
	x86@...nel.org, Conor Dooley <conor.dooley@...rochip.com>
Subject: Re: [External] [PATCH RFC 00/19] RISC-V: QoS: add CBQRI resctrl
 interface

On Mon, Jan 26, 2026 at 09:14:24PM +0800, yunhui cui wrote:
> 1. What about the relevant logic for mweight?

My intention for this series is to just add support for functionality
that matches the existing resctrl schemata. I think mweight could be
added later. There is active discussion [1] about how to expand schemas
in resctrl.

> 2. What is the support plan for IOMMU?

Similarly, I wanted to land the basic resctrl support before expanding
to other resource types.

> 3. Can we also add the patches that support RQSC to this patchset?

I'm about to send it as part of v2 of this series. I removed the
platform drivers and use to ACPI to boot the system. I will finish
editing the cover letter and send today. The b4/ssqosid-cbqri branch
contains what will be the v2 series.

Thanks,
Drew

[1] https://lore.kernel.org/all/aXUK7XFsHl+gnwA%2F@x1/
[2] https://github.com/tt-fustini/linux/commits/b4/ssqosid-cbqri/