From patchwork Tue Apr 4 18:20:31 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: 13200801 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 97C99C761A6 for ; Tue, 4 Apr 2023 18:22:55 +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=9HJHQu3xkRkTz1H+aVu1ZnD0gPIdwTtczbw+ZQNHHoc=; b=z91yKsU3+CxDpE lPz8UBe5oiJIIfnN04wMScHzioCMyfrlJjIp4YF4gyo/KKizxXQMIV6RgmTCsaOWA6mlj+QXcITFj pQvevtq0CI6om2Eej/A0Jfy5SW7iB6xe2r6J2gIzPaAmiDyflKrOOiW9RZgaXvSl5qZdUUHzKeAZH Wcd6bTgGZlL4WYDFQrUUQeGL7uv5S1eEFiXHt9oiLGA0Zjr/+I2VJtdYvToxo6xgCZ8OTJ7AMi6aq lU4uhTDyEMmzEoynF95tkmsWVhUWO7UuH6iZm2ISDzHCVxxuGjYW8LBn7Szb/Oj28Sge6hMLVYJOu a1nGOyn3LRilPBeV7ayA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pjlIv-002UV2-1g; Tue, 04 Apr 2023 18:22:49 +0000 Received: from mail-pg1-x533.google.com ([2607:f8b0:4864:20::533]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pjlIt-002UTX-0K for linux-riscv@lists.infradead.org; Tue, 04 Apr 2023 18:22:48 +0000 Received: by mail-pg1-x533.google.com with SMTP id y35so20223184pgl.4 for ; Tue, 04 Apr 2023 11:22:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1680632566; 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=zD5rRL/Qo33kIFahZhwUm29X+6vMDi/30v04/QLcXUQ=; b=UIHu2giA5QAUdfrzphOrCNgf8TXf9Q337RJyaEDTsCelh5V0xJtnF5gy2TpNyJ3dib JQxA71u/Yth+XIXINwX7ERs/pWdRfR6fiMjDKHJrVNobDIWnvCxoz9SL3ii/bn6LJZBh qavA3ViuTfTTmh5JPoKTiEy/TNg6PKmzql59rAOOlKjT0+Y4VR4Tllzag0CkfB7JI8mN oIT1dLLjFZkxEing3aWpLI3zfjPVUyoxqBL3Fp8HxThPD9NCws5Lfe2SXIhYWU6ns9yU ByteigMnS++tSxUZybtfzf4EpK7ugZVUS13o1Pu+O+857FM6pQJjzjC1bEyIuyYsBPBJ sKNg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1680632566; 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=zD5rRL/Qo33kIFahZhwUm29X+6vMDi/30v04/QLcXUQ=; b=mTqimH7wpdn1XrBHEVwhhqZC3CetZcxQXW4ZzyI6gYnMrK5SKSqjU2lkaHMbA7fT3l z2KeO3gtN74hqx0N5oHgOWQrW+/RoJ7NTpGIaWFwrVt8b2uSaJlHqfZvv1IxLYcCREM3 vCCrcfjLiVc3abKnoVtkUklEOw8a/2UwsFjEwKbHZXX/SWq76FaI91ItsPWuMI4UCWl5 q7OaoatPdAW/wU/Okrf5esiAHEG9ZI3SYzbwdM0lBsT3hPn8uiQkX7IUPSLTY+l706MC q724iUN7Czl6DutaEX4/uKlrnH6fAp1yud/LwFlbsa32VN0Fk5zvR5hbJwyJSusISy1h 44Hg== X-Gm-Message-State: AAQBX9eMRLzL8bio+zbxEZ7l+SSJeM0Kld5+4o4b3n10RuZfLGxKUGAc NZuQUh/1Yvrvf2E6EXEGwLf86A== X-Google-Smtp-Source: AKy350bhrHRdDWNUPNswRwG+i3CBb1KLXEYk2mzXo0XGX7CeXMoT6FgV3O1l78I2J1umA2T5+KrIUw== X-Received: by 2002:a62:6203:0:b0:62a:9d6f:98dc with SMTP id w3-20020a626203000000b0062a9d6f98dcmr2813704pfb.11.1680632566619; Tue, 04 Apr 2023 11:22:46 -0700 (PDT) Received: from localhost.localdomain ([106.51.184.50]) by smtp.gmail.com with ESMTPSA id o12-20020a056a001bcc00b0062dcf5c01f9sm9018524pfw.36.2023.04.04.11.22.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 04 Apr 2023 11:22:45 -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 V4 17/23] clocksource/timer-riscv: Add ACPI support Date: Tue, 4 Apr 2023 23:50:31 +0530 Message-Id: <20230404182037.863533-18-sunilvl@ventanamicro.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230404182037.863533-1-sunilvl@ventanamicro.com> References: <20230404182037.863533-1-sunilvl@ventanamicro.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230404_112247_138994_2DC1ECBD X-CRM114-Status: GOOD ( 10.46 ) 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 , 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