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 99E52EB64DC for ; Thu, 29 Jun 2023 10:59:07 +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:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=m0B781MhT2JEXQcbsLGCa1KsJxZQlHNvQ6H2pehuK5c=; b=DX5CmWlVzxT1ek gJNiSdvBG+EeUFi8zYa/ehOC5HBlgyAGakva7UayL/qkb4WwOmV19yZhKJUEla0VWuh8FycVCpjzl wcogCB11xXY/xERf6cf+PvpUb5p5dNDV/K3fpA9zxgCRWQOjhQc6Wz4vbvThkOOnPNLzYEXlpdj7J cGyZfDabEhL3TUa+VJgp1Wl7hKn2OMp9eA0p54lLPJuR0agJw/2I+DBvd8JhrqHoIX4IN3CtPnwLw /mV6zN6zVrzSYy3s+Bwu7alvstTHqWVqGXmClvhjWc8by8v2eHAtMYV5530Gjc5jcIc0WKhYEMP4b 5PCVvVjTiudL8LXccAYw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qEpMV-000tUd-1C; Thu, 29 Jun 2023 10:58:55 +0000 Received: from mail-qk1-x735.google.com ([2607:f8b0:4864:20::735]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qEpMT-000tTR-0Z for linux-riscv@lists.infradead.org; Thu, 29 Jun 2023 10:58:54 +0000 Received: by mail-qk1-x735.google.com with SMTP id af79cd13be357-7659dc74da1so54095285a.3 for ; Thu, 29 Jun 2023 03:58:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1688036328; x=1690628328; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=4VnJRF+bvKvFG7e8QSGNJVbP7sD6ShtvV0wC+uPz2w4=; b=o+qZW/ID5ykc5l20pWKMRIfquYco820JW+lACiz582Rsj0smJHw5Z3gH65bwUneaXA yNqJHtP+M8vGgBhLymuXaUOXZ1UyEfXQ2lp7hMt4szT+h7oko6ubijEU9SlZcazeE678 zEOmKvdpw9Hth6CA9pDyIqCdNno+GS/7J03Sgblkfs5mhZrsRPy+TkvermqpEXR7WYdD 82mgiIaB8umzKsR3XxXeg5WMQyy9cmuNEuVDM21wTsA7j2rXLY8twTS6UH4q2a8Krxil 1tQ6fEKUot0PAbjfskZeyu3UWOshyNFXy+O3e2/yJfAGBSyu/9zQQsJzQ6PmcUjN8p85 U3mw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1688036328; x=1690628328; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=4VnJRF+bvKvFG7e8QSGNJVbP7sD6ShtvV0wC+uPz2w4=; b=gRy6/ccYJH5wSS4xI8Fw2s0p9arpiYI472OCRL8ukx507axH0WDMsvLRxwfZ+YcS+k XCxxCliLYi3WGErJ4D72eKK/qltXvwHetdfhSgDpPTeWcdwSMJB06DB2MM9bSpExC6av l1VtNER2i4rANwbfLUlbgg3vRa+AC8mLR/TNc+aiLubL/hOk4sN302wK7DTHktEPCPeQ gzMez09GNoSqLazis+/bq3HV1qdLeIx0PBNH1Jx2W0c1gQGsrshVODrWtILeX7z9k99V gS7bXtS4jfJEyPo2QMuIZLtKbhlan3MgT6vHziqJD1PJDgjLziB4Of54DtHD63c5js6R x01A== X-Gm-Message-State: AC+VfDwcDA4pk/YbvICpDtMjudjq9D1sMBJw2nOi6QTVO7stxz4sfuJ+ RmO37l2vNgR4Eh178il9/q0= X-Google-Smtp-Source: ACHHUZ5l2fGgSesEkEiyi9CYPVPtoZ/T7+l/KE9QTC0baTm/v3rkXZmUpjQBPEQ9ufeg2STeuhmC+g== X-Received: by 2002:a05:620a:d89:b0:767:2f4a:e07a with SMTP id q9-20020a05620a0d8900b007672f4ae07amr2027566qkl.68.1688036328270; Thu, 29 Jun 2023 03:58:48 -0700 (PDT) Received: from localhost.localdomain ([58.240.82.166]) by smtp.gmail.com with ESMTPSA id 29-20020a17090a195d00b0025ef39c0f87sm9734017pjh.0.2023.06.29.03.58.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Jun 2023 03:58:47 -0700 (PDT) From: Song Shuai To: paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, conor.dooley@microchip.com, ajones@ventanamicro.com, sunilvl@ventanamicro.com, heiko.stuebner@vrull.eu, apatel@ventanamicro.com, suagrfillet@gmail.com, evan@rivosinc.com, greentime.hu@sifive.com, leyfoon.tan@starfivetech.com Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] riscv: BUG_ON() for no cpu nodes in setup_smp Date: Thu, 29 Jun 2023 18:58:39 +0800 Message-Id: <20230629105839.1160895-1-suagrfillet@gmail.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230629_035853_213380_B91D611C X-CRM114-Status: GOOD ( 11.25 ) 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: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org When booting with ACPI tables, the tiny devictree created by EFI Stub doesn't provide cpu nodes. In setup_smp(), of_parse_and_init_cpus() will bug on !found_boot_cpu if acpi_disabled. That's unclear, so bug for no cpu nodes before of_parse_and_init_cpus(). Signed-off-by: Song Shuai --- arch/riscv/kernel/smpboot.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/riscv/kernel/smpboot.c b/arch/riscv/kernel/smpboot.c index 6ca2b5309aab..243a7b533ad7 100644 --- a/arch/riscv/kernel/smpboot.c +++ b/arch/riscv/kernel/smpboot.c @@ -187,8 +187,13 @@ static void __init of_parse_and_init_cpus(void) void __init setup_smp(void) { - if (acpi_disabled) + if (acpi_disabled) { + /* When booting with ACPI tables, the devictree created by EFI Stub + * doesn't provide cpu nodes. So BUG here for any acpi_disabled. + */ + BUG_ON(!of_get_next_cpu_node(NULL)); of_parse_and_init_cpus(); + } else acpi_parse_and_init_cpus(); } -- 2.20.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv