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[2604:1380:45e3:2400::1]) by mx.google.com with ESMTPS id v67-20020a632f46000000b005cdbebc0eedsi13642079pgv.538.2023.12.28.22.55.03 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Dec 2023 22:55:03 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-12962-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) client-ip=2604:1380:45e3:2400::1; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel+bounces-12962-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-12962-ouuuleilei=gmail.com@vger.kernel.org" Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sv.mirrors.kernel.org (Postfix) with ESMTPS id 54AE1282DB1 for ; Fri, 29 Dec 2023 06:54:56 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id BEB808827; Fri, 29 Dec 2023 06:54:35 +0000 (UTC) X-Original-To: linux-kernel@vger.kernel.org Received: from fd01.gateway.ufhost.com (fd01.gateway.ufhost.com [61.152.239.71]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E5FFE747E for ; Fri, 29 Dec 2023 06:54:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=starfivetech.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=starfivetech.com Received: from EXMBX166.cuchost.com (unknown [175.102.18.54]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "EXMBX166", Issuer "EXMBX166" (not verified)) by fd01.gateway.ufhost.com (Postfix) with ESMTP id 2EBAE80B2; Fri, 29 Dec 2023 14:54:17 +0800 (CST) Received: from EXMBX066.cuchost.com (172.16.7.66) by EXMBX166.cuchost.com (172.16.6.76) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 29 Dec 2023 14:54:16 +0800 Received: from jsia-virtual-machine.localdomain (175.136.135.142) by EXMBX066.cuchost.com (172.16.6.66) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 29 Dec 2023 14:54:13 +0800 From: Sia Jee Heng To: , CC: , , , , , , , Subject: [RFC v1 0/1] Enable SPCR table for console output on RISC-V Date: Fri, 29 Dec 2023 14:54:04 +0800 Message-ID: <20231229065405.235625-1-jeeheng.sia@starfivetech.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: EXCAS066.cuchost.com (172.16.6.26) To EXMBX066.cuchost.com (172.16.6.66) X-YovoleRuleAgent: yovoleflag X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1786598291235058359 X-GMAIL-MSGID: 1786598291235058359 This patch will enable the SPCR table for RISC-V. Vendor will enable/disable the SPCR table in the firmware based on the platform design. However, in cases where the SPCR table is not usable, a kernel parameter could be used to specify the preferred console. This patch depends on Sunil's patch series, as indicated in [1] and the corresponding Qemu patch can be found at [2]. [1] https://lore.kernel.org/lkml/20231219174526.2235150-1-sunilvl@ventanamicro.com/ [2] https://lore.kernel.org/qemu-devel/20231228080616.158822-1-jeeheng.sia@starfivetech.com/ Sia Jee Heng (1): RISC-V: ACPI: Enable SPCR table for console output on RISC-V arch/riscv/kernel/acpi.c | 4 ++++ 1 file changed, 4 insertions(+)