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=-12.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 16C27C433DF for ; Wed, 15 Jul 2020 07:20:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EE0B82067D for ; Wed, 15 Jul 2020 07:20:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729189AbgGOHUE (ORCPT ); Wed, 15 Jul 2020 03:20:04 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:7317 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728876AbgGOHUD (ORCPT ); Wed, 15 Jul 2020 03:20:03 -0400 Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 367C086A3F7B3A2F6EFD; Wed, 15 Jul 2020 15:20:01 +0800 (CST) Received: from DESKTOP-KKJBAGG.china.huawei.com (10.174.186.75) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.487.0; Wed, 15 Jul 2020 15:19:51 +0800 From: Zhenyu Ye To: , , , , , , CC: , , , , , , , , , Subject: [PATCH v3 0/3] arm64: tlb: add support for TLBI RANGE instructions Date: Wed, 15 Jul 2020 15:19:42 +0800 Message-ID: <20200715071945.897-1-yezhenyu2@huawei.com> X-Mailer: git-send-email 2.22.0.windows.1 MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.174.186.75] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org NOTICE: this series are based on the arm64 for-next/tlbi branch: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/tlbi ARMv8.4-TLBI provides TLBI invalidation instruction that apply to a range of input addresses. This series add support for this feature. -- ChangeList: v3: - add check on whether binutils supports ARMv8.4-a instructions. - pass -march=armv8.4-a to KBUILD_CFLAGS. - make __TLBI_RANGE_PAGES to be 'unsigned long' explicitly. v2: - remove the __tlbi_last_level() macro. - add check for parameters in __TLBI_VADDR_RANGE macro. RFC patches: - Link: https://lore.kernel.org/linux-arm-kernel/20200708124031.1414-1-yezhenyu2@huawei.com/ Zhenyu Ye (3): arm64: tlb: Detect the ARMv8.4 TLBI RANGE feature arm64: enable tlbi range instructions arm64: tlb: Use the TLBI RANGE feature in arm64 arch/arm64/Kconfig | 14 +++ arch/arm64/Makefile | 7 ++ arch/arm64/include/asm/cpucaps.h | 3 +- arch/arm64/include/asm/sysreg.h | 3 + arch/arm64/include/asm/tlbflush.h | 156 ++++++++++++++++++++++++------ arch/arm64/kernel/cpufeature.c | 10 ++ 6 files changed, 163 insertions(+), 30 deletions(-) -- 2.19.1