From patchwork Tue Mar 24 13:45:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhenyu Ye X-Patchwork-Id: 11455455 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3293692A for ; Tue, 24 Mar 2020 13:46:12 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 0967420753 for ; Tue, 24 Mar 2020 13:46:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0967420753 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 40CE26B0003; Tue, 24 Mar 2020 09:46:11 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 396636B0005; Tue, 24 Mar 2020 09:46:11 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 284756B0007; Tue, 24 Mar 2020 09:46:11 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0106.hostedemail.com [216.40.44.106]) by kanga.kvack.org (Postfix) with ESMTP id 0CBF96B0003 for ; Tue, 24 Mar 2020 09:46:11 -0400 (EDT) Received: from smtpin20.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id F1A5798AA for ; Tue, 24 Mar 2020 13:46:10 +0000 (UTC) X-FDA: 76630379700.20.pump13_52f9aa000ca25 X-Spam-Summary: 1,0,0,,d41d8cd98f00b204,yezhenyu2@huawei.com,,RULES_HIT:30054:30074,0,RBL:45.249.212.190:@huawei.com:.lbl8.mailshell.net-62.18.2.100 64.95.201.95,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fp,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:23,LUA_SUMMARY:none X-HE-Tag: pump13_52f9aa000ca25 X-Filterd-Recvd-Size: 3272 Received: from huawei.com (szxga04-in.huawei.com [45.249.212.190]) by imf49.hostedemail.com (Postfix) with ESMTP for ; Tue, 24 Mar 2020 13:46:10 +0000 (UTC) Received: from DGGEMS410-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 40A58CD4E978E9934518; Tue, 24 Mar 2020 21:46:06 +0800 (CST) Received: from DESKTOP-KKJBAGG.china.huawei.com (10.173.220.25) by DGGEMS410-HUB.china.huawei.com (10.3.19.210) with Microsoft SMTP Server id 14.3.487.0; Tue, 24 Mar 2020 21:45:59 +0800 From: Zhenyu Ye To: , , , , , , , , , , , , , , , , CC: , , , , , , , , Subject: [RFC PATCH v4 0/6] arm64: tlb: add support for TTL feature Date: Tue, 24 Mar 2020 21:45:28 +0800 Message-ID: <20200324134534.1570-1-yezhenyu2@huawei.com> X-Mailer: git-send-email 2.22.0.windows.1 MIME-Version: 1.0 X-Originating-IP: [10.173.220.25] X-CFilter-Loop: Reflected 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. See patches for details, Thanks. [1] https://lore.kernel.org/linux-arm-kernel/20200211174938.27809-1-maz@kernel.org/ ChangeList: v1: add support for TTL feature in arm64. v2: build the patch on Marc's NV series[1]. v3: use vma->vm_flags to replace mm->context.flags. v4: add Marc's patches into my series. Marc Zyngier (2): arm64: Detect the ARMv8.4 TTL feature arm64: Add level-hinted TLB invalidation helper Zhenyu Ye (4): arm64: Add level-hinted TLB invalidation helper to tlbi_user mm: Add page table level flags to vm_flags arm64: tlb: Use translation level hint in vm_flags mm: Set VM_LEVEL flags in some tlb_flush functions arch/arm64/include/asm/cpucaps.h | 3 +- arch/arm64/include/asm/mmu.h | 2 + arch/arm64/include/asm/sysreg.h | 1 + arch/arm64/include/asm/tlb.h | 12 +++++ arch/arm64/include/asm/tlbflush.h | 74 ++++++++++++++++++++++++++++--- arch/arm64/kernel/cpufeature.c | 11 +++++ arch/arm64/mm/hugetlbpage.c | 4 +- arch/arm64/mm/mmu.c | 14 ++++++ include/asm-generic/pgtable.h | 16 ++++++- include/linux/mm.h | 10 +++++ include/trace/events/mmflags.h | 15 ++++++- mm/huge_memory.c | 8 +++- 12 files changed, 157 insertions(+), 13 deletions(-)