linux-kernel - Re: [PATCH v4 0/3] RISC-V: Detect Ssqosid extension and handle srmcfg CSR

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Message-ID: <aUxtySYYiAk1WjNt@x1>
Date: Wed, 24 Dec 2025 14:48:41 -0800
From: Drew Fustini <fustini@...nel.org>
To: yunhui cui <cuiyunhui@...edance.com>
Cc: Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>, Alexandre Ghiti <alex@...ti.fr>,
	Conor Dooley <conor@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Kornel Dulęba <mindal@...ihalf.com>,
	Adrien Ricciardi <aricciardi@...libre.com>,
	James Morse <james.morse@....com>,
	Atish Kumar Patra <atishp@...osinc.com>,
	Atish Patra <atish.patra@...ux.dev>,
	Vasudevan Srinivasan <vasu@...osinc.com>,
	Conor Dooley <conor.dooley@...rochip.com>, guo.wenjia23@....com.cn,
	liu.qingtao2@....com.cn, linux-riscv@...ts.infradead.org,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v4 0/3] RISC-V: Detect Ssqosid extension and handle
 srmcfg CSR

On Wed, Dec 24, 2025 at 04:40:26PM +0800, yunhui cui wrote:
> Hi Drew,
> 
> [3] https://lore.kernel.org/all/20250910204309.20751-1-james.morse@arm.com/
> seems to have been merged into the mainline. Do you plan to submit a
> series of ssqosid + cbqri patches with ACPI support?
> 
> Thanks,
> Yunhui

Hi, yes, I plan do that by the end of next week. I got feedback on the
kernel Ssqosid series that I should focus fist on upstreaming the Qemu
implemenation as there is no public hardware implementation yet. There
was a lot that needed to be cleaned up in the Qemu patches and I'm
finally near the end of addressing all the feedback.

I'm about to post a new revision of the Qemu series and then I'll rebase
and post the kernel ssqosid+cbqri patch series. The initial series will
just have the DT-based support. I plan to cleanup the Qemu patches for
the RQSC and PPTT tables and then I will post the RQSC kernel patches.

Thanks,
Drew