From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 290373AB289; Thu, 6 Aug 2026 01:21:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785979274; cv=none; b=XZpLJHjOpBzythc6cX6eQ9TpzHxD2awE3zlIM62tCs+iooxzqOE15elLbCL4S/GELnHIuqlVXvj6CLGm64tNkIi8HbBLX0Y7bVTlANtuJEVwBk0NukBROlqO3RAx5hwY6Mf81yWD/6n5JCt8LVdsZu1GxJtmr9LMa2ZyI71yfus= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785979274; c=relaxed/simple; bh=0P6er77yxOQAHda1I+NPlreAN19z90eBknaLSRxsUAM=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References: MIME-Version:Content-Type; b=kuQwdhEPFx/5hPfSA/N4uZxxAtaJiDL7jljoL17Ps0ngdMRnk8VCgZi2NcPm9YrueqBfYZHW/pTY9miq++kJHzmMUtCzdRi/EnsPaY9D2h+WvJu5AoZsu9PdR2OOSnYe9r2gXb2gAt0bmdbbYbSVyAHJX+6w6VagNLLbV1jsUH4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ZuJaJ7Ca; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ZuJaJ7Ca" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3A0961F000E9; Thu, 6 Aug 2026 01:21:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785979272; bh=hDGqstzzjBKEwA87lDJOzh7sqG1Xvv3RgfgKzbRXTKc=; h=Date:From:To:cc:Subject:In-Reply-To:References; b=ZuJaJ7CaSUNULH/y7SLUAu0fEGbuBeEu7FyezYtiybDTQ8Pa/foOX0STx0NeHytEb l93xuHs0Z+E9Z7Vc/TnyskljCazpEUdompRI91EEwPFabhE6+bBP8onlxT+Y0OXKEG iGa3n1WDx51n1WNF7xMhNBB9O+udscqJ0jggSotCNIJ/GrhzNzapRPgXUBj59cK3jW 6+W+4GyKkPhv9+fOjnWBBMecce3rdE441E4hgON18UuyHDU4ggVzAZZ389yLe/x9/T ikjF9UEL2cNoxo++KOjOxXCBf+/WmS2FEyqCt+5JakJ/b0bHxqVS/Ii3Y4nN3zfgD0 tKbEbA80Pc0ag== Date: Wed, 5 Aug 2026 19:21:02 -0600 (MDT) From: Paul Walmsley To: Drew Fustini cc: Paul Walmsley , Adrien Ricciardi , Alexandre Ghiti , Atish Kumar Patra , Atish Patra , Babu Moger , Ben Horgan , Borislav Petkov , Chen Pei , Conor Dooley , Conor Dooley , Dave Hansen , Dave Martin , Fenghua Yu , Gong Shuai , Gong Shuai , guo.wenjia23@zte.com.cn, James Morse , =?ISO-8859-2?Q?Kornel_Dul=EAba?= , Krzysztof Kozlowski , liu.qingtao2@zte.com.cn, Liu Zhiwei , Palmer Dabbelt , Peter Newman , =?ISO-8859-2?Q?Radim_Kr=E8m=E1=F8?= , Reinette Chatre , Rob Herring , Samuel Holland , Sebastian Andrzej Siewior , Tony Luck , Vasudevan Srinivasan , Ved Shanbhogue , Weiwei Li , yunhui cui , Zhanpeng Zhang , linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, x86@kernel.org, devicetree@vger.kernel.org, linux-rt-devel@lists.linux.dev, linux-doc@vger.kernel.org Subject: Re: [PATCH v6 3/8] riscv: Add support for srmcfg CSR from Ssqosid extension In-Reply-To: Message-ID: References: <20260729-dfustini-atl-sc-cbqri-dt-v6-0-7c22b05d461b@kernel.org> <20260729-dfustini-atl-sc-cbqri-dt-v6-3-7c22b05d461b@kernel.org> <3b6dd35e-dabb-3cb0-547f-0c8a0b035e1a@kernel.org> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII On Wed, 5 Aug 2026, Drew Fustini wrote: > Thanks for queuing this patch. It is okay to leave out the READ_ONCE() > since only Patches 1-3 are being applied. > > The READ_ONCE() is meant to pair with the WRITE_ONCE() in > resctrl_arch_set_closid_rmid(), which comes in patch 5. RCID and MCID > share the srmcfg csr, and resctrl can update thread.srmcfg from another > hart while this task is switched in. OK thanks, that makes sense; I've put it back. - Paul