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=-3.8 required=3.0 tests=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 E90F2C2BA15 for ; Fri, 3 Apr 2020 09:01:17 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id B6CE421473 for ; Fri, 3 Apr 2020 09:01:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B6CE421473 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 4ABB48E0008; Fri, 3 Apr 2020 05:01:17 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 45BA78E0007; Fri, 3 Apr 2020 05:01:17 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 397C38E0008; Fri, 3 Apr 2020 05:01:17 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0215.hostedemail.com [216.40.44.215]) by kanga.kvack.org (Postfix) with ESMTP id 1EF178E0007 for ; Fri, 3 Apr 2020 05:01:17 -0400 (EDT) Received: from smtpin26.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id CE2AD824556B for ; Fri, 3 Apr 2020 09:01:16 +0000 (UTC) X-FDA: 76665949752.26.fifth20_45498866e9535 X-HE-Tag: fifth20_45498866e9535 X-Filterd-Recvd-Size: 3213 Received: from huawei.com (szxga07-in.huawei.com [45.249.212.35]) by imf41.hostedemail.com (Postfix) with ESMTP for ; Fri, 3 Apr 2020 09:01:15 +0000 (UTC) Received: from DGGEMS404-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 3FEEA593A8533F9AB649; Fri, 3 Apr 2020 17:01:07 +0800 (CST) Received: from DESKTOP-KKJBAGG.china.huawei.com (10.173.220.25) by DGGEMS404-HUB.china.huawei.com (10.3.19.204) with Microsoft SMTP Server id 14.3.487.0; Fri, 3 Apr 2020 17:00:59 +0800 From: Zhenyu Ye To: , , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH v1 0/6] arm64: tlb: add support for TTL feature Date: Fri, 3 Apr 2020 17:00:42 +0800 Message-ID: <20200403090048.938-1-yezhenyu2@huawei.com> X-Mailer: git-send-email 2.22.0.windows.1 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.173.220.25] X-CFilter-Loop: Reflected Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: In order to reduce the cost of TLB invalidation, the ARMv8.4 TTL feature allows TLBs to be issued with a level allowing for quicker invalidation. This series provide support for this feature. Patch 1 and Patch 2 was provided by Marc on his NV series[1] patches, which detect the TTL feature and add __tlbi_level interface. Patch 3 added __tlbi_user_level interface. Patch 4 was provided by Peter and added some mmu_gather APIs. Patch 5 provided flush_*_tlb_range wrappers so we can do the tlb invalidation according to the information in struct mmu_gather. Finally, we supported TTL feature in ARM64 by using tlb->cleared_* in struct mmu_gather. See patches for details, Thanks. Marc Zyngier (2): arm64: Detect the ARMv8.4 TTL feature arm64: Add level-hinted TLB invalidation helper Peter Zijlstra (Intel) (1): tlb: mmu_gather: add tlb_set_*_range APIs Zhenyu Ye (3): arm64: Add tlbi_user_level TLB invalidation helper mm: tlb: Provide flush_*_tlb_range wrappers arm64: tlb: Set the TTL field in flush_tlb_range arch/arm64/include/asm/cpucaps.h | 3 +- arch/arm64/include/asm/sysreg.h | 1 + arch/arm64/include/asm/tlb.h | 26 ++++++++++++++- arch/arm64/include/asm/tlbflush.h | 53 ++++++++++++++++++++++++----- arch/arm64/kernel/cpufeature.c | 11 +++++++ include/asm-generic/pgtable.h | 12 +++++-- include/asm-generic/tlb.h | 55 ++++++++++++++++++++++--------- mm/pgtable-generic.c | 50 ++++++++++++++++++++++++++++ 8 files changed, 184 insertions(+), 27 deletions(-) --=20 2.19.1