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=-5.5 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 5F84CC433E1 for ; Fri, 14 Aug 2020 17:10:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3237B20791 for ; Fri, 14 Aug 2020 17:10:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728371AbgHNRKX (ORCPT ); Fri, 14 Aug 2020 13:10:23 -0400 Received: from szxga03-in.huawei.com ([45.249.212.189]:3015 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726270AbgHNRKX (ORCPT ); Fri, 14 Aug 2020 13:10:23 -0400 Received: from dggeme755-chm.china.huawei.com (unknown [172.30.72.53]) by Forcepoint Email with ESMTP id 39AA4C23FCB17C1C9D5E; Sat, 15 Aug 2020 01:10:21 +0800 (CST) Received: from [10.140.157.78] (10.140.157.78) by dggeme755-chm.china.huawei.com (10.3.19.101) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1913.5; Sat, 15 Aug 2020 01:10:20 +0800 To: CC: , From: Dongjiu Geng Subject: Adjust interrupt Priority for ARM64 GIC Message-ID: <5a6e65cf-d2fe-0107-2318-0e3c81d57000@huawei.com> Date: Sat, 15 Aug 2020 01:10:20 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.140.157.78] X-ClientProxiedBy: dggeme711-chm.china.huawei.com (10.1.199.107) To dggeme755-chm.china.huawei.com (10.3.19.101) X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Marc, In the Linux kernel, we can not adjust the interrupt Priority, For all the interrupts, the interrupt Priority are fixed to 0xa0. In some scenarios, it needs to change the Priority. so I want to upstream a serie patch to support to change the Priority through procfs. do you agree I upstream this feature? thanks~