From nobody Sun Dec 14 06:15:26 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A12A5EB64DB for ; Wed, 14 Jun 2023 17:06:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236597AbjFNRGa (ORCPT ); Wed, 14 Jun 2023 13:06:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37678 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236505AbjFNRG1 (ORCPT ); Wed, 14 Jun 2023 13:06:27 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 53CF8E41 for ; Wed, 14 Jun 2023 10:06:27 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id E0282638A3 for ; Wed, 14 Jun 2023 17:06:26 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C92BAC433C9; Wed, 14 Jun 2023 17:06:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1686762386; bh=QeH29Idc/6qrLsvNLxNicZ5LF/IoEKjciGzozuHn9t0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=C2rZISm1K8SkX1xOX2TLo7PW3cS1O2+YAR3k8M/A7VHYIwyHqnIYBfZHgFZjoHAcU D6TI6td2vGW0/E3u69+d2Zu7PFJ2td8w0NweV8byRIQnpl3T+xRcHQDXzF+Eg/24Kl siFAuXe4IaioC/8Z1rh4+OBr2Q9k+zPGamRaR8KE5Q+3kXXjDS44jOvQ+tiTZhqZWo YGCtd0MSzQSzdydgVrdgOXvuAO+tZb1xla2qNqdK9DMFnKtUXfHygowqSgjC1PS/4z aq3kHPtbo8dEMetGxnDv5izg4t5+r2BOJCxxMQKppXEb7mN2OIBSCx71X/3FFRVeOi wbMRbsRj8hzTA== From: Jisheng Zhang To: Paul Walmsley , Palmer Dabbelt , Albert Ou Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Conor Dooley Subject: [PATCH 1/3] riscv: errata: thead: only set cbom size & noncoherent during boot Date: Thu, 15 Jun 2023 00:55:02 +0800 Message-Id: <20230614165504.532-2-jszhang@kernel.org> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230614165504.532-1-jszhang@kernel.org> References: <20230614165504.532-1-jszhang@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" The CBOM size and whether the HW is noncoherent is known and determined during booting and won't change after that. Signed-off-by: Jisheng Zhang Reviewed-by: Conor Dooley --- arch/riscv/errata/thead/errata.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/arch/riscv/errata/thead/errata.c b/arch/riscv/errata/thead/err= ata.c index c259dc925ec1..be84b14f0118 100644 --- a/arch/riscv/errata/thead/errata.c +++ b/arch/riscv/errata/thead/errata.c @@ -45,8 +45,11 @@ static bool errata_probe_cmo(unsigned int stage, if (stage =3D=3D RISCV_ALTERNATIVES_EARLY_BOOT) return false; =20 - riscv_cbom_block_size =3D L1_CACHE_BYTES; - riscv_noncoherent_supported(); + if (stage =3D=3D RISCV_ALTERNATIVES_BOOT) { + riscv_cbom_block_size =3D L1_CACHE_BYTES; + riscv_noncoherent_supported(); + } + return true; } =20 --=20 2.40.1