From patchwork Wed Feb 9 08:53:58 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 12739867 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 74F7BC433EF for ; Wed, 9 Feb 2022 08:56:01 +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=q8EQ0T9WDZpo9KWkAyKKEvpzY5SGY/DLoE/BfNi6oq0=; b=FDhfDLmAP7MYwm N/6IBJGf4ulvtPj8a/F6CAtRtC8O+PaxPJm2J1ICwVygGTdeGyVCcL+5JaV9H45Fmqq0dFEbSthi9 MSi7Or0ec8268AK9hJ6pBWEKLgzO1RDKW43TecSu9Tn16WNwhWr1AFZU12tj6mYqkPKf4lmzDzL0q NnuUAQ96YnPptCg4IfSwBMPpt4PpqmcqJt5I7zb9bskPGjp10YxY9deI1t97KGoVffei1TWXbffuW GL+Lomh2/Xzk9TvT5W8cDi/iHyWKwBhE1PCeAmD79Kp4qQH6Tdg48JolH4s0l2f6ZU/Ke/9LZC7wU fp5Q1eo4tm+ZKpqXL0lw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nHilU-00Gkyf-SI; Wed, 09 Feb 2022 08:55:52 +0000 Received: from baptiste.telenet-ops.be ([2a02:1800:120:4::f00:13]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nHiju-00Gk7j-T7 for linux-riscv@lists.infradead.org; Wed, 09 Feb 2022 08:54:16 +0000 Received: from ramsan.of.borg ([IPv6:2a02:1810:ac12:ed40:54c7:c522:3859:290]) by baptiste.telenet-ops.be with bizsmtp id swu4260014VQqf501wu4K1; Wed, 09 Feb 2022 09:54:05 +0100 Received: from rox.of.borg ([192.168.97.57]) by ramsan.of.borg with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.93) (envelope-from ) id 1nHijj-000DIg-CE; Wed, 09 Feb 2022 09:54:03 +0100 Received: from geert by rox.of.borg with local (Exim 4.93) (envelope-from ) id 1nHiji-00DkLg-LU; Wed, 09 Feb 2022 09:54:02 +0100 From: Geert Uytterhoeven To: Paul Walmsley , Palmer Dabbelt , Albert Ou Cc: Atish Patra , Jessica Clarke , Anup Patel , Emil Renner Berthing , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Geert Uytterhoeven Subject: [PATCH v2 0/3] RISC-V: Fix cpumask rework fall-out Date: Wed, 9 Feb 2022 09:53:58 +0100 Message-Id: X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220209_005415_140543_5189789F X-CRM114-Status: GOOD ( 16.23 ) 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: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Hi all, This patch series fixes the fall-out from commit 26fb751ca37846c9 ("RISC-V: Do not use cpumask data structure for hartid bitmap"), cfr. the discussion in thread[1]. Most important, it fixes userspace crashes on systems where the first CPU does not have the lowest Hart ID. Changes compared to v1[2]: - Add Reviewed-by, Tested-by. Thanks for applying! [1] "[PATCH v3 6/6] RISC-V: Do not use cpumask data structure for hartid bitmap" https://lore.kernel.org/r/20220120090918.2646626-7-atishp@rivosinc.com/ [2] "[PATCH 0/3] RISC-V: Fix cpumask rework falloout" https://lore.kernel.org/all/cover.1643635156.git.geert@linux-m68k.org/ Geert Uytterhoeven (3): RISC-V: Fix hartid mask handling for hartid 31 and up RISC-V: Fix handling of empty cpu masks RISC-V: Fix IPI/RFENCE hmask on non-monotonic hartid ordering arch/riscv/kernel/sbi.c | 72 +++++++++++++++++++++++++++-------------- 1 file changed, 47 insertions(+), 25 deletions(-)