From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6F263C54E41 for ; Wed, 28 Feb 2024 10:14:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: In-Reply-To:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date: Reply-To:Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date :Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=pNWYDtqq8oGqDWvAeivpgZtFh6aTjy84kwCM6YSQR5I=; b=gk5HpkFq9NHv4VLYdDQN19McX2 Wti/jjWr9BmfF4/PIUOw3k89eUcfCa4KjJ1NF5/aaXTrkbOY9OKybzQGqJlUtXVc2brI+bOrDvcq6 pbS5P4iaLHT8hlOUUZXxkpRh+Juy95mbEa4RsT7de7KATnghx8XHKjcO28GBS85n9rFX/an8IQdp7 6hz11mON+SAawH6MTHqYgNIVCgO1d3S+0FNp1YCRfHjBUgwOAE3d1KOrKVSDQWrLFgi2kwZdQfik/ mRQBnQ97YO5OYiseckSXR8ds5kAaIMgLs9AjC5zdn24Pyfpw0wmXYW+kXmYcOfgY4O50VvDWfKEGW EpjeU4zw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rfGxS-00000008nd4-0dTw; Wed, 28 Feb 2024 10:14:38 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rfGxP-00000008nca-0Z4g for linux-riscv@lists.infradead.org; Wed, 28 Feb 2024 10:14:36 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 64C2E61778; Wed, 28 Feb 2024 10:14:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 63737C433F1; Wed, 28 Feb 2024 10:14:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1709115274; bh=LlpIsPA3s5JjEM2+9kxgL/praNsrMawFqUk7o7+/NC0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=jpBkus9WxLeKhaE00DYuxkdmEei5yuSfeL/vxQLSjUEn+6DIxN+B43J2E6fIXKE5s WRC7wO5ureHOEm0e/AAxdRXMJSXiTCxhY6Pi2mfvSHj5QYSjkMBcznvx2ItcwNHEom 2wOYtKwluzAMEuASXHbs8//Dl4nEF6QWYtaUQ1m0HxioDx9JKTQW0KZnocp8rq1wSw VTU/204MmfG0LXiy/RgmnNmYnhkCxGI+tBsICIhD4CgqmrN7uW/FPIAUrKxmcdVo7i pi59kp74fst/qX240lSCzDyyZTrDhZz9YST2HmzuZjjwCFwX9PJb+x6AWI+7ifjBAs SXtA9asVcQ2BQ== Date: Wed, 28 Feb 2024 10:14:30 +0000 From: Conor Dooley To: Samuel Holland Cc: Palmer Dabbelt , Andrew Jones , linux-kernel@vger.kernel.org, Alexandre Ghiti , linux-riscv@lists.infradead.org, Stefan O'Rear , stable@vger.kernel.org Subject: Re: [PATCH -fixes v4 3/3] riscv: Save/restore envcfg CSR during CPU suspend Message-ID: <20240228-persuader-dehydrate-549097aafac1@spud> References: <20240228065559.3434837-1-samuel.holland@sifive.com> <20240228065559.3434837-4-samuel.holland@sifive.com> MIME-Version: 1.0 In-Reply-To: <20240228065559.3434837-4-samuel.holland@sifive.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240228_021435_238555_0441F1E9 X-CRM114-Status: UNSURE ( 7.73 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============3993643076155920791==" Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org --===============3993643076155920791== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="oQj8PrQtimAkDfFE" Content-Disposition: inline --oQj8PrQtimAkDfFE Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Feb 27, 2024 at 10:55:35PM -0800, Samuel Holland wrote: > The value of the [ms]envcfg CSR is lost when entering a nonretentive > idle state, so the CSR must be rewritten when resuming the CPU. >=20 > Cc: # v6.7+ > Fixes: 43c16d51a19b ("RISC-V: Enable cbo.zero in usermode") > Signed-off-by: Samuel Holland Reviewed-by: Conor Dooley Cheers, Conor. --oQj8PrQtimAkDfFE Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRh246EGq/8RLhDjO14tDGHoIJi0gUCZd8HhgAKCRB4tDGHoIJi 0oltAQCyAW4xl4lPxjiVe7khhMrXdeuIuR7yGDqAKXKQJo1wkQEAuUcPMOTpBetT Cp57UO+aOEO8qN+j2x5dwcZuPd9BSw0= =nH9F -----END PGP SIGNATURE----- --oQj8PrQtimAkDfFE-- --===============3993643076155920791== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv --===============3993643076155920791==-- From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 8521B364BF; Wed, 28 Feb 2024 10:14:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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Wed, 28 Feb 2024 10:14:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1709115274; bh=LlpIsPA3s5JjEM2+9kxgL/praNsrMawFqUk7o7+/NC0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=jpBkus9WxLeKhaE00DYuxkdmEei5yuSfeL/vxQLSjUEn+6DIxN+B43J2E6fIXKE5s WRC7wO5ureHOEm0e/AAxdRXMJSXiTCxhY6Pi2mfvSHj5QYSjkMBcznvx2ItcwNHEom 2wOYtKwluzAMEuASXHbs8//Dl4nEF6QWYtaUQ1m0HxioDx9JKTQW0KZnocp8rq1wSw VTU/204MmfG0LXiy/RgmnNmYnhkCxGI+tBsICIhD4CgqmrN7uW/FPIAUrKxmcdVo7i pi59kp74fst/qX240lSCzDyyZTrDhZz9YST2HmzuZjjwCFwX9PJb+x6AWI+7ifjBAs SXtA9asVcQ2BQ== Date: Wed, 28 Feb 2024 10:14:30 +0000 From: Conor Dooley To: Samuel Holland Cc: Palmer Dabbelt , Andrew Jones , linux-kernel@vger.kernel.org, Alexandre Ghiti , linux-riscv@lists.infradead.org, Stefan O'Rear , stable@vger.kernel.org Subject: Re: [PATCH -fixes v4 3/3] riscv: Save/restore envcfg CSR during CPU suspend Message-ID: <20240228-persuader-dehydrate-549097aafac1@spud> References: <20240228065559.3434837-1-samuel.holland@sifive.com> <20240228065559.3434837-4-samuel.holland@sifive.com> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="oQj8PrQtimAkDfFE" Content-Disposition: inline In-Reply-To: <20240228065559.3434837-4-samuel.holland@sifive.com> --oQj8PrQtimAkDfFE Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Feb 27, 2024 at 10:55:35PM -0800, Samuel Holland wrote: > The value of the [ms]envcfg CSR is lost when entering a nonretentive > idle state, so the CSR must be rewritten when resuming the CPU. >=20 > Cc: # v6.7+ > Fixes: 43c16d51a19b ("RISC-V: Enable cbo.zero in usermode") > Signed-off-by: Samuel Holland Reviewed-by: Conor Dooley Cheers, Conor. --oQj8PrQtimAkDfFE Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRh246EGq/8RLhDjO14tDGHoIJi0gUCZd8HhgAKCRB4tDGHoIJi 0oltAQCyAW4xl4lPxjiVe7khhMrXdeuIuR7yGDqAKXKQJo1wkQEAuUcPMOTpBetT Cp57UO+aOEO8qN+j2x5dwcZuPd9BSw0= =nH9F -----END PGP SIGNATURE----- --oQj8PrQtimAkDfFE--