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 C73B2C433F5 for ; Wed, 4 May 2022 11:58:11 +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:References:In-Reply-To: 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: List-Owner; bh=fHCDgieQBYegbhsNhw7/r+CpdhDLWr0fPEVnMhj+MP8=; b=sEwceZc2Rapd9a LoFoXgSged4kGSUwrHzMP6Gz9VTlOgxoSPdwha5RBqzvkGcNAukMKSe3iI6xK8vp99sIPXUUXbgNB ySZhMQqJ8UjZ1Ty0lmYJ+IiETZ+XrBj3RUBYZxQeYq3GiWG57Svw9mQQtE+JWNnQEMglJW2nYMkAy /e3loDR93a1w11XoO98/2o60k0UvLRrL9e8DQAdBfZUfak8QLi33H8NnSRtvOrMgGnsgg2aFhm9tE il+Ex71x97lBTBsxvtZf+md4abDl2AWK1xTUy1oMZLLXpCRcsTXNDO9Hf6CjK174PllItk6063XDP nl+pyQcuNkpTJQQOcx8A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nmDdi-00Aamo-3D; Wed, 04 May 2022 11:57:54 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nmDdf-00AamK-I3 for linux-riscv@lists.infradead.org; Wed, 04 May 2022 11:57:52 +0000 Received: from ip5b412258.dynamic.kabel-deutschland.de ([91.65.34.88] helo=diego.localnet) by gloria.sntech.de with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nmDdM-0001N1-BL; Wed, 04 May 2022 13:57:32 +0200 From: Heiko =?ISO-8859-1?Q?St=FCbner?= To: Arnd Bergmann , linux-riscv@lists.infradead.org Cc: guoren@kernel.org, peterz@infradead.org, mingo@redhat.com, Will Deacon , longman@redhat.com, boqun.feng@gmail.com, jonas@southpole.se, stefan.kristiansson@saunalahti.fi, shorne@gmail.com, Paul Walmsley , Palmer Dabbelt , aou@eecs.berkeley.edu, Arnd Bergmann , Greg KH , sudipm.mukherjee@gmail.com, macro@orcam.me.uk, jszhang@kernel.org, linux-csky@vger.kernel.org, linux-kernel@vger.kernel.org, openrisc@lists.librecores.org, linux-riscv@lists.infradead.org, linux-arch@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Palmer Dabbelt , Palmer Dabbelt Subject: Re: [PATCH v4 1/7] asm-generic: ticket-lock: New generic ticket-based spinlock Date: Wed, 04 May 2022 13:57:31 +0200 Message-ID: <2180881.iZASKD2KPV@diego> In-Reply-To: <20220430153626.30660-2-palmer@rivosinc.com> References: <20220430153626.30660-1-palmer@rivosinc.com> <20220430153626.30660-2-palmer@rivosinc.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220504_045751_622497_41211527 X-CRM114-Status: GOOD ( 12.10 ) 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 Am Samstag, 30. April 2022, 17:36:20 CEST schrieb Palmer Dabbelt: > From: Peter Zijlstra > > This is a simple, fair spinlock. Specifically it doesn't have all the > subtle memory model dependencies that qspinlock has, which makes it more > suitable for simple systems as it is more likely to be correct. It is > implemented entirely in terms of standard atomics and thus works fine > without any arch-specific code. > > This replaces the existing asm-generic/spinlock.h, which just errored > out on SMP systems. > > Signed-off-by: Peter Zijlstra (Intel) > Signed-off-by: Palmer Dabbelt on riscv64+riscv32 qemu, beaglev and d1-nezha Tested-by: Heiko Stuebner _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv