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 X-Spam-Level: X-Spam-Status: No, score=-4.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0E9D1C433E0 for ; Tue, 23 Jun 2020 13:29:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D1B0320723 for ; Tue, 23 Jun 2020 13:29:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=sifive.com header.i=@sifive.com header.b="ZyUq2l/x" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732707AbgFWN27 (ORCPT ); Tue, 23 Jun 2020 09:28:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45198 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732597AbgFWN26 (ORCPT ); Tue, 23 Jun 2020 09:28:58 -0400 Received: from mail-pf1-x442.google.com (mail-pf1-x442.google.com [IPv6:2607:f8b0:4864:20::442]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9C872C061573 for ; Tue, 23 Jun 2020 06:28:58 -0700 (PDT) Received: by mail-pf1-x442.google.com with SMTP id p11so1406524pff.11 for ; Tue, 23 Jun 2020 06:28:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=from:to:subject:date:message-id:mime-version :content-transfer-encoding; bh=PVBNJVgIh+vVxMtbdgm71jq0Zz2CQKK6+qEFaR+z8+Y=; b=ZyUq2l/xke53S4qo4NAs41PKzd/Bp8m7rpz0UAAWrxACkMQsISpKBy8fmLd9LAlnBA kgsU1YCRx8zkIiBCKvXhqQ2D1zcBYdrlSraatfI0WpBHZf0hIGVlowcZMe//Kawo4GYS Tb0y0kuRs1ZiyGuRnucAHC7dxPjr85X+IH8+l5XFcnKsScagIBFLR1ChFp3r1u9XqtES W+8naG9rsG6gPFeyF7lMqJWlZ4posLIQ01YFC/FImYClSG6GKZGFWcwV1N7NDh6J5UvM TdRWq1C6hVwkTQ9zNyqh0WzJPJyshUX7L6fsAz67rpR1BKERMMbnYZRV4MZiaz48u2ww gZRA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:mime-version :content-transfer-encoding; bh=PVBNJVgIh+vVxMtbdgm71jq0Zz2CQKK6+qEFaR+z8+Y=; b=TCbGGwx3qAoLcUJ9Dg6D1Vh0BEDWkM4DdgSQOowiS3PZ6GS0JybV6Swaz5KaPxp5x/ dr8CFMNLZy6oUdUue+ybfghnoPv7Jn7kdjZNUB2H293GvBhZABLqj7CqH/JXeU4akYdP GdmjIYIfWyH4T6zRMWIonEzAOPESh6SFcswFtzS0GrsRMWnz2x3DLTi4vh1Nr38dnOLX xLm8UG9wMh+aXhnMr+kLPsCBtkFjQp5zfVmk7trUoiBAE17AYvigDBRJ7gquJ/NSrk5f 9fe6cE/WLP9C7FD2VyUAJbd4yY0Wq3hpUI053/ZHgLr5ZlLRvjs5vXiu5rjkYjYT6fS4 sBzg== X-Gm-Message-State: AOAM533uo1alUhXpMtXOiv17OKqaKgkmr8eAuT7+Aqn7pjRaVAl/TDwt yqBHNrVAnDUTRvN+89UBfDefBLeExWU= X-Google-Smtp-Source: ABdhPJx9DxYGmlD7GXAU2Nu9zoPa8iCEk3MY0Hmdt9TY/NioFmNY2tCNtUaeAhGCNE9Gg+vJ4m+Wbw== X-Received: by 2002:a05:6a00:807:: with SMTP id m7mr25788176pfk.246.1592918937913; Tue, 23 Jun 2020 06:28:57 -0700 (PDT) Received: from hsinchu02.internal.sifive.com (114-34-229-221.HINET-IP.hinet.net. [114.34.229.221]) by smtp.gmail.com with ESMTPSA id z19sm1670602pjn.55.2020.06.23.06.28.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Jun 2020 06:28:57 -0700 (PDT) From: Greentime Hu To: greentime.hu@sifive.com, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, aou@eecs.berkeley.edu, palmer@dabbelt.com, paul.walmsley@sifive.com, guoren@linux.alibaba.com Subject: [PATCH 0/2] riscv: Add context tracker support Date: Tue, 23 Jun 2020 21:28:50 +0800 Message-Id: X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patchset adds support for irq_work via self IPI and context tracking. It is tested in qemu-system-riscv64 and SiFive HiFive Unleashed board based on v5.8-rc2. Greentime Hu (2): riscv: Support irq_work via self IPIs riscv: Enable context tracking arch/riscv/Kconfig | 1 + arch/riscv/include/asm/irq_work.h | 10 ++++++++++ arch/riscv/kernel/entry.S | 23 +++++++++++++++++++++++ arch/riscv/kernel/smp.c | 15 +++++++++++++++ 4 files changed, 49 insertions(+) create mode 100644 arch/riscv/include/asm/irq_work.h -- 2.27.0