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=-8.0 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 DEE18C43441 for ; Tue, 27 Nov 2018 10:03:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A09A2208E7 for ; Tue, 27 Nov 2018 10:03:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=brainfault-org.20150623.gappssmtp.com header.i=@brainfault-org.20150623.gappssmtp.com header.b="Mi2u6F64" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A09A2208E7 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=brainfault.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730512AbeK0VAx (ORCPT ); Tue, 27 Nov 2018 16:00:53 -0500 Received: from mail-pg1-f194.google.com ([209.85.215.194]:44305 "EHLO mail-pg1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730438AbeK0VAw (ORCPT ); Tue, 27 Nov 2018 16:00:52 -0500 Received: by mail-pg1-f194.google.com with SMTP id t13so7620853pgr.11 for ; Tue, 27 Nov 2018 02:03:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=brainfault-org.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id; bh=zQclvUuAWO43QDDHbS+I1HAFxUvaKASGir9+ioQf6KA=; b=Mi2u6F646NSMHZe4zbEJMAL46YhGacWYD+Vmg9zVt8AzLl/c/UvEXpYR94FzTGURIy NgtYyzXIi/oW77XavD2uVdBHd7y4IIyM8ak4/O1hFwuWDm9KXgwqMyrzZiY1pyoIhst3 zjC2oxM8rrvhSURijGROXYT09YXqx1LWqCiMp85bAcr2dLV5XTZDMCI5b3YNf4uCXlrH 48mDmYuRpCmMafK/ezRG8zt8xjjLwEVKQMLhJqO39ypJzjTVpjOe1cxGkFy76LFOMps7 fp+Sw44j/89CW0g7xeWqAUFMQd2N4+kaRFz5B+hfvP+JD8YMKQJzXb9R29oV9/3krRiN /rwg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=zQclvUuAWO43QDDHbS+I1HAFxUvaKASGir9+ioQf6KA=; b=a/LrUvitlk3APi5vMWb6DL4QAYcP2JZUQswv3AUkwY8Xo83b23e+PbbnglrHNPkF7A LqxgNV+EZpOOKpDBRHmWcYaVcnvc/Uvdc/SFZRN8eqc2yCfJa4glI67RpfPBanWVyEAc 1b/bhuQMGPozKlm/qcUvdVJ72Hb+Va90Ram3X17jBCsODrMmKb4VG7X6WeDONc5YZFl+ 4LW6/+9H30ZM75FaI8Rl27ObV3FCjBSBZaymc71KapvQw9F57ll/JVZsFKMsy8whcwT+ CNVH7ryBFsaV4f57Ei9tcKf/ocAriq3iWqnXx3m9FuJ9RrMS/KbLRPwRITgIxQKHYTDO CNfw== X-Gm-Message-State: AA+aEWbltK1FJMMlfVDhRtBUFLDLwMtC+MiboBklmvgrvcnNnKiZxdoi OJ83klP86TBWa27pUzy4Z353ag== X-Google-Smtp-Source: AFSGD/UERRYpH/8nayEUL1RNFfaJHjAtC/dEpPIxVOt71LLPD8IdBLStMU3s4oP7fqTjAlOWfaUPeg== X-Received: by 2002:a63:e19:: with SMTP id d25mr28523025pgl.272.1543313009752; Tue, 27 Nov 2018 02:03:29 -0800 (PST) Received: from anup-ubuntu64.qualcomm.com ([49.207.48.241]) by smtp.googlemail.com with ESMTPSA id t87sm9519590pfk.122.2018.11.27.02.03.26 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 27 Nov 2018 02:03:29 -0800 (PST) From: Anup Patel To: Palmer Dabbelt , Albert Ou , Daniel Lezcano , Thomas Gleixner , Jason Cooper , Marc Zyngier Cc: Atish Patra , Christoph Hellwig , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Anup Patel Subject: [PATCH v2 0/4] IRQ affinity support in PLIC driver Date: Tue, 27 Nov 2018 15:33:13 +0530 Message-Id: <20181127100317.12809-1-anup@brainfault.org> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patchset primarily adds IRQ affinity support in PLIC driver and other improvements. The patchset gives mechanism for explicitly routing external interrupts to particular CPUs using smp_affinity attribute of each Linux IRQs. Also, we can now use IRQ balancer from kernel-space or user-space. The patchset is tested on QEMU virt machine. It is based on Linux-4.20-rc4 and can be found at riscv_plic_irq_affinity_v2 branch of: https://github.com/avpatel/linux.git Changes since v1: - Removed few whitspace changes from PATCH1 - Keep use of DEFINE_PER_CPU() as it is Anup Patel (4): irqchip: sifive-plic: Pre-compute context hart base and enable base irqchip: sifive-plic: More flexible plic_irq_toggle() irqchip: sifive-plic: Differentiate between PLIC handler and context irqchip: sifive-plic: Implement irq_set_affinity() for SMP host drivers/irqchip/irq-sifive-plic.c | 144 ++++++++++++++++++------------ 1 file changed, 86 insertions(+), 58 deletions(-) -- 2.17.1