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 E9DC8EE14D8 for ; Sun, 10 Sep 2023 08:58:46 +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-Type: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: In-Reply-To:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date: Reply-To:Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date :Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=wVsqk7lnQw0YL1YC2nEKXMmu15nbZwGcjkkcQvpGb8Y=; b=4BCGhW9fcevTMTXWYa6UPM5vgE H4PJdHXY90UWfUUlefM1fHz4vhYxhly7vzC5GUPsbMVrfgIwXhlUKC0vlyaGeQjVs9jTHbv/46Hle DOJ1FCaa1Z91tYBL3f0QP6dFHb0MXyVezoirDQFeVbz0P+li7Nv1/99gPqj4Lu2ECtKGbIUrq93XZ /qcQP31Ng3r0wfPfJGhxF3Y447biMJm+27P4qLVph2BpkiISPznuJxnT3Z1JDo7d2gDhA2OB3PqEw EFb2EGtOWBgrQYgF2gB3a5tyun4tSxV1XNm85XgHcMDkb8KVTTQOYoO6YTxzYm+FHTKgrddMx2IDw l9wkGwyQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qfGHC-00GK8S-0W; Sun, 10 Sep 2023 08:58:42 +0000 Received: from ams.source.kernel.org ([2604:1380:4601:e00::1]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qfGH9-00GK7T-1C for linux-riscv@lists.infradead.org; Sun, 10 Sep 2023 08:58:40 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id BC84BB80A06; Sun, 10 Sep 2023 08:58:37 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A56C4C433C7; Sun, 10 Sep 2023 08:58:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1694336316; bh=ie3mkzGb78frh1QxUYvyoQn4GH0ST3RCcUoT31fNuUk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=dtepG0xn8dCUF6d/nvOR4p1KA2z2RoXleNgidaXdsI9NMFCQI2q0CfrdT8VA/xygA m9gdZoMzTl7LlfrvfDZn6IxiU6Z84Y/BqBFsUPlsu0QWk5zOpwIhLbNJNPd1yrYzr2 5k7/NNn7whYrqyhR1WWdaINPnEJEnlj69/XbcRYYcrLpaGrnuh18sYNheT5vmRdjM7 cUcFoumVx1hEASilEz09Br0aei9/BXf8xgSxmpfUnHESm2+yiSSEwFeT5AhDSpyqmX 7jW3wC4u+YKTQdvs/mFwr44+sYiPOYiubMpijZThv68+ydMS+N0VFyZl1GyC0crQc8 NhSBcQJFlrsGw== Date: Sun, 10 Sep 2023 09:58:28 +0100 From: Conor Dooley To: guoren@kernel.org Cc: paul.walmsley@sifive.com, anup@brainfault.org, peterz@infradead.org, mingo@redhat.com, will@kernel.org, palmer@rivosinc.com, longman@redhat.com, boqun.feng@gmail.com, tglx@linutronix.de, paulmck@kernel.org, rostedt@goodmis.org, rdunlap@infradead.org, catalin.marinas@arm.com, conor.dooley@microchip.com, xiaoguang.xing@sophgo.com, bjorn@rivosinc.com, alexghiti@rivosinc.com, keescook@chromium.org, greentime.hu@sifive.com, ajones@ventanamicro.com, jszhang@kernel.org, wefu@redhat.com, wuwei2016@iscas.ac.cn, leobras@redhat.com, linux-arch@vger.kernel.org, linux-riscv@lists.infradead.org, linux-doc@vger.kernel.org, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, linux-csky@vger.kernel.org, Guo Ren Subject: Re: [PATCH V11 00/17] riscv: Add Native/Paravirt qspinlock support Message-ID: <20230910-esteemed-exodus-706aaae940b1@spud> References: <20230910082911.3378782-1-guoren@kernel.org> MIME-Version: 1.0 In-Reply-To: <20230910082911.3378782-1-guoren@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230910_015839_551949_C3A2482D X-CRM114-Status: GOOD ( 10.13 ) 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: multipart/mixed; boundary="===============8894826133700932790==" Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org --===============8894826133700932790== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="ORxaGwMyxaL8VJte" Content-Disposition: inline --ORxaGwMyxaL8VJte Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Sun, Sep 10, 2023 at 04:28:54AM -0400, guoren@kernel.org wrote: > Changlog: > V11: > - Based on Leonardo Bras's cmpxchg_small patches v5. > - Based on Guo Ren's Optimize arch_spin_value_unlocked patch v3. > - Remove abusing alternative framework and use jump_label instead. btw, I didn't say that using alternatives was the problem, it was abusing the errata framework to perform feature detection that I had a problem with. That's not changed in v11. A stronger forward progress guarantee is not an erratum, AFAICT. > - Introduce prefetch.w to improve T-HEAD processors' LR/SC forward progress > guarantee. > - Optimize qspinlock xchg_tail when NR_CPUS >= 16K. --ORxaGwMyxaL8VJte Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRh246EGq/8RLhDjO14tDGHoIJi0gUCZP2FNAAKCRB4tDGHoIJi 0vtHAQDkzGM0Ps4GL3DcCukAmWgFu5NhrG8JrAccsQivkfwJiQD/VS20Hau/Evtj 7e/AK20nyAL4aPqBlnjOO0LuZ9X5mQI= =80fi -----END PGP SIGNATURE----- --ORxaGwMyxaL8VJte-- --===============8894826133700932790== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv --===============8894826133700932790==--