From patchwork Mon May 15 05:49:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sunil V L X-Patchwork-Id: 13240795 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 672FDC77B7D for ; Mon, 15 May 2023 05:51:46 +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-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=D0iy7nuV7T1yy18/6y+iy79GmhGnpwaS1Oa/R7VDfEc=; b=Z18+OCy91szX+c ATitrlRrg3CkMxLmA1/SWEdU3Id5fLa0s1+GZKIdL3immhElnywcnn49Nx13kfJh8aTjIuNBQCTzm zgDpGEBalYOdCGxs0FhxeQGnDvt1VpreLF71lBUPX+iMuiXPoEbVh2qCjgl9azB3hEAarbcWvxvEl XDyTDk0lFYI5RH7RrLYkg+i2h4LTZ/iIrgYZ3vDxV79e1wCKzGMVYj+XocyWujdQ8caGRQGvR6PMA RPt6QDQUrHr0L6rkYN/iDDDJo9MbuM3OiRIdhBEQIu+cL18ffaabZf+Ww7Ht/Ggp7y5YdCdMLU7/N N8iIxGGJkKZXqqzOiczg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pyR7W-0010Zw-1n; Mon, 15 May 2023 05:51:42 +0000 Received: from mail-pg1-x531.google.com ([2607:f8b0:4864:20::531]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pyR7U-0010YV-1H for linux-riscv@lists.infradead.org; Mon, 15 May 2023 05:51:41 +0000 Received: by mail-pg1-x531.google.com with SMTP id 41be03b00d2f7-51452556acdso8373818a12.2 for ; Sun, 14 May 2023 22:51:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1684129900; x=1686721900; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=yTcS6ERydBi3sd7UUw2QFTJaMwmeqvxl7dgO0DDj6Ys=; b=B/2s07xO4JsvpjeFQXLK9epGxKSolGR137ahXL6Xqpu6cvJdjAuvwFfJTToBH27hFx iU1eFj0lfQMJxAK3JCa7YpUoLShxQppRs9krLSWJt0lywC6dWcEPg/rXvsy8hGJZBrZQ aAqH2ZDdzbSNReetY5GYcij66xNie7S3Ek1SV0mHfB2S6EjF5fy4DYd2rkos7AXiUp7r A7mM1MxwDNuHsULDMKmoeD2CS+aY1S1YK7CEPqzDEfCTjgx/DjSdsn3f6HZ1Og81975E 71WOPu6Hm4MeLzAZvw6s1lAIaAMu94JwdS+HB8ZmbyvdOAqMnV3uLCalVpLAenNxNcVi 9S1A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684129900; x=1686721900; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=yTcS6ERydBi3sd7UUw2QFTJaMwmeqvxl7dgO0DDj6Ys=; b=DNHxQP7Si+SSJJhennHCnip5+pSnVuYNepYz+z7ZjS8miQ2UOKPm2yWHvL7K0WTnh/ Sh4yPY1CpfZ20NgGS/rm68XKGcYmBJmp4MV+RvAW4FhBWzGoHUfeSwoXYdu1ZyS/6fqm Vin/hDfy1IE+0Ahx5OIZV+5BAinpWv1KYXEAvlirxHHLdv6vlLSDmdKI86Wb9TSaDYXB MbRuTsvQYalEz7h5+wgOVbvZlmssrXadxeLfF1W9QUGbmnXO9cpjLNvL9ZGEqkUwmvSR lZjRkJcU6+xbcDF0Man+jZmcEW3q4l/ein+W3EX1gLJmPK/GWQIl6t7nUBTMx8+oG3HW APDQ== X-Gm-Message-State: AC+VfDwhwDSKbK1ITDJ5dlReIrgcVeXgpm2Vlif2VJn6O4lGfVtx3sLb Rcy59OhI/AkCLwhoqdz0Gq6vIw== X-Google-Smtp-Source: ACHHUZ5p6rTF1JyYq/6jX97XqVSLRtHjCcktupUgoSF3DN/rvwg29xnalX3XmhPORDR68lFdXczR3Q== X-Received: by 2002:a17:902:e80c:b0:1ab:1dff:9540 with SMTP id u12-20020a170902e80c00b001ab1dff9540mr41677533plg.14.1684129899921; Sun, 14 May 2023 22:51:39 -0700 (PDT) Received: from localhost.localdomain ([106.51.191.118]) by smtp.gmail.com with ESMTPSA id f10-20020a17090274ca00b001ab28f620d0sm12423277plt.290.2023.05.14.22.51.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 14 May 2023 22:51:39 -0700 (PDT) From: Sunil V L To: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, linux-acpi@vger.kernel.org, linux-crypto@vger.kernel.org, platform-driver-x86@vger.kernel.org, llvm@lists.linux.dev Subject: [PATCH V6 18/21] clocksource/timer-riscv: Add ACPI support Date: Mon, 15 May 2023 11:19:25 +0530 Message-Id: <20230515054928.2079268-19-sunilvl@ventanamicro.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230515054928.2079268-1-sunilvl@ventanamicro.com> References: <20230515054928.2079268-1-sunilvl@ventanamicro.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230514_225140_433785_BA9B313C X-CRM114-Status: UNSURE ( 9.93 ) 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: , Cc: "Rafael J . Wysocki" , "Rafael J . Wysocki" , Tom Rix , Conor Dooley , Weili Qian , Herbert Xu , Jonathan Corbet , Marc Zyngier , Daniel Lezcano , Andrew Jones , Albert Ou , Mark Gross , Hans de Goede , Paul Walmsley , Thomas Gleixner , Nathan Chancellor , Nick Desaulniers , Zhou Wang , Palmer Dabbelt , Len Brown , Maximilian Luz , "David S . Miller" Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Initialize the timer driver based on RHCT table on ACPI based platforms. Currently, ACPI doesn't support a flag to indicate that the timer interrupt can wake up the cpu irrespective of its power state. It will be added in future update. Signed-off-by: Sunil V L Acked-by: Rafael J. Wysocki Reviewed-by: Andrew Jones Reviewed-by: Conor Dooley --- drivers/clocksource/timer-riscv.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/clocksource/timer-riscv.c b/drivers/clocksource/timer-riscv.c index cecc4662293b..da3071b387eb 100644 --- a/drivers/clocksource/timer-riscv.c +++ b/drivers/clocksource/timer-riscv.c @@ -10,6 +10,7 @@ #define pr_fmt(fmt) "riscv-timer: " fmt +#include #include #include #include @@ -207,3 +208,13 @@ static int __init riscv_timer_init_dt(struct device_node *n) } TIMER_OF_DECLARE(riscv_timer, "riscv", riscv_timer_init_dt); + +#ifdef CONFIG_ACPI +static int __init riscv_timer_acpi_init(struct acpi_table_header *table) +{ + return riscv_timer_init_common(); +} + +TIMER_ACPI_DECLARE(aclint_mtimer, ACPI_SIG_RHCT, riscv_timer_acpi_init); + +#endif