From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp-fw-52003.amazon.com (smtp-fw-52003.amazon.com [52.119.213.152]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9E1481F7589 for ; Wed, 4 Dec 2024 14:20:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=52.119.213.152 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733322014; cv=none; b=ulXhi/jaoxFG4pgAkKMAbqx+FW9MseB94Mq0MSd9QwOU23noQVc5L0JvBEmEBL6+fmPjB6BOBlPg5sxLYAr2eYBk8m0BEdYTAOJZKdW1DJwcTdMhTpU3/aU4pcUJpT+o8bN+rZr3YPRqSm26jwkiAe3qsR19Eg0ctdpmNd9eQc0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733322014; c=relaxed/simple; bh=yJ6g2kJpoMpt1kocOWNeppeInu257oApJ+ELYCwb2UI=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=jl0pT+sBEhz8NzbN4VK4IiJ4FXUY2Jb3lTviSUQ4WZrIsBYmNTbljKpp6OihSb8k9LUmR9rlWy0V72Yjy+4SGK6Epl1CqCuGGLQQ19wKU5dqmHcjoogNlEgSDCir1Vk/EaAp4xUxR0gdJp6WG2rAH8N8PEQFZ4ZyaufUVKCe3V8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amazon.com; spf=pass smtp.mailfrom=amazon.com; dkim=pass (1024-bit key) header.d=amazon.com header.i=@amazon.com header.b=Wpon7Txw; arc=none smtp.client-ip=52.119.213.152 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amazon.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=amazon.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amazon.com header.i=@amazon.com header.b="Wpon7Txw" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1733322012; x=1764858012; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=zswYcgJLwrXZ5Noz0/+vVn+a499HuoexmUzvToEzvkM=; b=Wpon7Txwe68uQqSKcBiVrxh1/TzzuXhoWaI81fZSqLutw7XpHJgGhGoZ fUzWdoddorfCoz+aISYLJDWj39B6NtGw0YO99mGfBOEREY1+z8/TiVZ/K QHb6Eofcuqq7i3qFmkONGqOAbWIe9+ChQzrbgrdzfWO2aRimId8GKV9Kk Q=; X-IronPort-AV: E=Sophos;i="6.12,207,1728950400"; d="scan'208";a="46564984" Received: from iad6-co-svc-p1-lb1-vlan3.amazon.com (HELO smtpout.prod.us-west-2.prod.farcaster.email.amazon.dev) ([10.124.125.6]) by smtp-border-fw-52003.iad7.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Dec 2024 14:20:05 +0000 Received: from EX19MTAUWC001.ant.amazon.com [10.0.7.35:50901] by smtpin.naws.us-west-2.prod.farcaster.email.amazon.dev [10.0.31.190:2525] with esmtp (Farcaster) id 609709e8-0189-4b6b-b1ef-da475ec79ee4; Wed, 4 Dec 2024 14:20:05 +0000 (UTC) X-Farcaster-Flow-ID: 609709e8-0189-4b6b-b1ef-da475ec79ee4 Received: from EX19D013UWB003.ant.amazon.com (10.13.138.111) by EX19MTAUWC001.ant.amazon.com (10.250.64.174) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.1258.34; Wed, 4 Dec 2024 14:20:04 +0000 Received: from EX19MTAUEC002.ant.amazon.com (10.252.135.146) by EX19D013UWB003.ant.amazon.com (10.13.138.111) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.1258.34; Wed, 4 Dec 2024 14:20:04 +0000 Received: from email-imr-corp-prod-iad-all-1a-6ea42a62.us-east-1.amazon.com (10.124.125.6) by mail-relay.amazon.com (10.252.135.146) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.1258.34 via Frontend Transport; Wed, 4 Dec 2024 14:20:04 +0000 Received: from dev-dsk-farbere-1a-46ecabed.eu-west-1.amazon.com (dev-dsk-farbere-1a-46ecabed.eu-west-1.amazon.com [172.19.116.181]) by email-imr-corp-prod-iad-all-1a-6ea42a62.us-east-1.amazon.com (Postfix) with ESMTP id DBF344066C; Wed, 4 Dec 2024 14:20:03 +0000 (UTC) Received: by dev-dsk-farbere-1a-46ecabed.eu-west-1.amazon.com (Postfix, from userid 14301484) id 98F487591; Wed, 4 Dec 2024 14:20:03 +0000 (UTC) From: Eliav Farber To: , , , , , , , , , , , , , , , , , , , , , , , CC: Subject: [PATCH v6 0/2] Improve interrupt handling during machine kexec Date: Wed, 4 Dec 2024 14:20:01 +0000 Message-ID: <20241204142003.32859-1-farbere@amazon.com> X-Mailer: git-send-email 2.40.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain This patch series focuses on improving the machine_kexec_mask_interrupts() function by consolidating its implementation and optimizing its behavior to avoid redundant interrupt masking. Patch Summary: [PATCH v6 1/2] Move machine_kexec_mask_interrupts() to kernel/irq/kexec.c, removing duplicate architecture-specific implementations. [PATCH v6 2/2] Refine machine_kexec_mask_interrupts() to avoid re-masking already-masked interrupts, resolving specific warnings triggered in GPIO IRQ flows. Changes between v5 and v6: - Change GENERIC_IRQ_KEXEC_CLEAR_VM_FORWARD to not be user selectable. Changes between v4 and v5: - The function machine_kexec_mask_interrupts() has been moved from kernel/kexec_core.c to a new file kernel/irq/kexec.c. - A new configuration option, GENERIC_IRQ_KEXEC_CLEAR_VM_FORWARD, has been added. - The parameters for the machine_kexec_mask_interrupts() function have been defined in reverse Christmas Tree style. - The comment explaining the call to irq_set_irqchip_state() has been improved for clarity. - The phrase 'This patch' has been removed from the commit message. Changes between v3 and v4: - Add missing and includes. Eliav Farber (2): kexec: Consolidate machine_kexec_mask_interrupts() implementation kexec: Prevent redundant IRQ masking by checking state before shutdown arch/arm/kernel/machine_kexec.c | 23 -------------------- arch/arm64/Kconfig | 1 + arch/arm64/kernel/machine_kexec.c | 31 -------------------------- arch/powerpc/include/asm/kexec.h | 1 - arch/powerpc/kexec/core.c | 22 ------------------- arch/powerpc/kexec/core_32.c | 1 + arch/riscv/kernel/machine_kexec.c | 23 -------------------- include/linux/irq.h | 3 +++ kernel/irq/Kconfig | 6 ++++++ kernel/irq/Makefile | 2 +- kernel/irq/kexec.c | 36 +++++++++++++++++++++++++++++++ 11 files changed, 48 insertions(+), 101 deletions(-) create mode 100644 kernel/irq/kexec.c -- 2.40.1