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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 13D21C38A2D for ; Wed, 26 Oct 2022 10:41:31 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 7114B8E0002; Wed, 26 Oct 2022 06:41:31 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 6C1F68E0001; Wed, 26 Oct 2022 06:41:31 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 5B02A8E0002; Wed, 26 Oct 2022 06:41:31 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 4B1A28E0001 for ; Wed, 26 Oct 2022 06:41:31 -0400 (EDT) Received: from smtpin05.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id 127E6A096C for ; Wed, 26 Oct 2022 10:41:31 +0000 (UTC) X-FDA: 80062759182.05.645FD8E Received: from smtpbguseast3.qq.com (smtpbguseast3.qq.com [54.243.244.52]) by imf26.hostedemail.com (Postfix) with ESMTP id 81BE3140003 for ; Wed, 26 Oct 2022 10:41:29 +0000 (UTC) X-QQ-mid: bizesmtp72t1666780837tnocriqo Received: from localhost.localdomain ( [101.6.93.82]) by bizesmtp.qq.com (ESMTP) with id ; Wed, 26 Oct 2022 18:40:20 +0800 (CST) X-QQ-SSF: 0140000000000060B000000A0000000 X-QQ-FEAT: /dh/S7faoAIKBd2C5GJ0Of9RdLfgrEtMrQ6BkXeX3UpsjiE9o+0zZjJErafrq EQHZDShdY6rYXbwDzIeMAxgarEhYQpkR7gHDTnH34j3AgEd8k5kMMwm+OZ0rFveFbDGLrar 9CiYRl5rQlpEAXIYCvf7Q2cgC1rjBBzjh3TwgQqjcJgQt5IR5AysKG6xT0MHA6XiUMw9crD liPjbpXBcn1uxknkvCRM6RI9mVoMT5B3A7SRFtxx2JIFSh684r0u+FZ/rWDSz+viC5AzsAw XSUWgxypCX2kPhnzBRPDEpnMWOsq97lb1EQeuskD+ppNGk/0yoclTO5ujzqWJ0ydQEo18FI HUwDcKxqzcdOkuzjVuz40a60qD6hNn/HjaGHGVN70Qr8KvZXMnwaWpQD0cgVWEBWeGBpGRH X-QQ-GoodBg: 1 From: Wen Yao To: paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, dennis@kernel.org, tj@kernel.org, cl@linux.com Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Wen Yao Subject: [PATCH 0/2] riscv: Rewrite percpu operations and support cmpxchg-local feature Date: Wed, 26 Oct 2022 18:40:13 +0800 Message-Id: <20221026104015.565468-1-haiwenyao@uniontech.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:uniontech.com:qybglogicsvr:qybglogicsvr2 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1666780890; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:references; bh=1q04cQQ2b3mNG13WG+3l7tzbWjC7uUy4eNoBdg/U4W0=; b=EYyVymj2t9Jg2892pdNVYrqNmw3FDY9gG+Un87sROmzkdfKQXJ24f7uahoMvbP0+i6hTgp wA/CpwEgk1r9mQFqK/AKMAuw+2qiV9Q3cyFY6ccH6iXE3W69neRGlk75XwKjOuTy9KXRoG RGvDwj8lmVowHwnYJ/+OZv/jKLES8eU= ARC-Authentication-Results: i=1; imf26.hostedemail.com; dkim=none; spf=pass (imf26.hostedemail.com: domain of haiwenyao@uniontech.com designates 54.243.244.52 as permitted sender) smtp.mailfrom=haiwenyao@uniontech.com; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1666780890; a=rsa-sha256; cv=none; b=w82fCkIha8Waf/cXBJPPnzcG9QVzcfyU3+ssjKa2ROfoes0dU68ZhWjR/I4+VR/q4dtlp2 pVw1SBi0eRavyUq2Ip10BjtNmrVAHhtvI0l9/kapTf5cIpOZiqmtfA2S87e28qtwfLx9pn DL6tCokY1ky1oHlSnkJb5MlBmFf89qs= Authentication-Results: imf26.hostedemail.com; dkim=none; spf=pass (imf26.hostedemail.com: domain of haiwenyao@uniontech.com designates 54.243.244.52 as permitted sender) smtp.mailfrom=haiwenyao@uniontech.com; dmarc=none X-Stat-Signature: yohzykcgyujyn99u6eux713mpxdikzb9 X-Rspamd-Queue-Id: 81BE3140003 X-Rspamd-Server: rspam07 X-Rspam-User: X-HE-Tag: 1666780889-635924 X-Bogosity: Ham, tests=bogofilter, spamicity=0.002388, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: The series try to use riscv amo instructions to optimise some percpu operations and select HAVE_CMPXCHG_LOCAL to support cmpxchg-local feature. Wen Yao (2): riscv: percpu:Add riscv percpu operations riscv:kconfig:select HAVE_CMPXCHG_LOCAL arch/riscv/Kconfig | 1 + arch/riscv/include/asm/percpu.h | 101 ++++++++++++++++++++++++++++++++ 2 files changed, 102 insertions(+) create mode 100644 arch/riscv/include/asm/percpu.h -- 2.25.1