From patchwork Sat Mar 21 12:16:17 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhenyu Ye X-Patchwork-Id: 11451151 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 EB41A13B1 for ; Sat, 21 Mar 2020 12:17:50 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8021420722 for ; Sat, 21 Mar 2020 12:17:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="VExMnMlX" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8021420722 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=T4WQxoKmRPoHrDOt4YQ6rMo7ZWKgEcQP70xyzKlQUgA=; b=VExMnMlXqek1mn 9oEltLuNx2UMGoKVEjmR4r32/qHiahlQTkdh2XOUt7ALyh3Gb4kdmVq9Gf3h9zyyyvgDZXrtY2cyD wpfe8gtc5TtzQATv71zkAN/wfwzOA4MkqU32sA1M9lvKvkqAiyjfWoVmsO1q7ieSEF19YKsQ3u5wT iiNpCiEsyE2k0ZYJU5IG0Bm6pRw8iTA/OrQJz+0p1BdSDvmoiwTv0Uv3xCccLTQJRgrISzldfZAex oym7er4aAj0QGPPUM4BlPl7ZkOMMRk+ymAAOWKtlqQ1Ji4CXpLYzSJBlMq+bNgxfHVn4Tg3KCcnQ/ 9GSseA1IZO8VwwoFrKJQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jFd4U-0002qy-LE; Sat, 21 Mar 2020 12:17:46 +0000 Received: from szxga04-in.huawei.com ([45.249.212.190] helo=huawei.com) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jFd3d-0001ws-Hl for linux-arm-kernel@lists.infradead.org; Sat, 21 Mar 2020 12:16:55 +0000 Received: from DGGEMS410-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 4E3BAB000FCFC12C27AE; Sat, 21 Mar 2020 20:16:37 +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; Sat, 21 Mar 2020 20:16:29 +0800 From: Zhenyu Ye To: , , , , , , , Subject: [RFC PATCH v3 0/4] arm64: tlb: add support for TTL field Date: Sat, 21 Mar 2020 20:16:17 +0800 Message-ID: <20200321121621.1600-1-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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200321_051653_786596_8C9D9CF4 X-CRM114-Status: UNSURE ( 8.92 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [45.249.212.190 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, yezhenyu2@huawei.com, linux-kernel@vger.kernel.org, xiexiangyou@huawei.com, zhangshaokun@hisilicon.com, linux-mm@kvack.org, arm@kernel.org, prime.zeng@hisilicon.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org -- ChangeList: v3: use vma->vm_flags to replace mm->context.flags. v2: build the patch on Marc's NV series[1]. v1: add support for TTL field in arm64. --- ARMv8.4-TTL provides the TTL field in tlbi instruction to indicate the level of translation table walk holding the leaf entry for the address that is being invalidated. Hardware can use this information to determine if there was a risk of splintering. Marc has provided basic support for ARM64-TTL features on his NV series[1] patches. NV is a large feature, however, only patches 62[2] and 67[3] are need by this patch set. ** You only need read those two patches before review this patch. ** Some of this patch depends on a feature powered by @Will Deacon two years ago, which tracking the level of page tables in mm_gather. See more in commit a6d60245. [1] git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git kvm-arm64/nv-5.6-rc1 [2] https://lore.kernel.org/linux-arm-kernel/20200211174938.27809-63-maz@kernel.org/ [3] https://lore.kernel.org/linux-arm-kernel/20200211174938.27809-68-maz@kernel.org/ 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/mmu.h | 2 ++ arch/arm64/include/asm/tlb.h | 12 +++++++++ arch/arm64/include/asm/tlbflush.h | 44 ++++++++++++++++++++++++++----- 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 +++++- 9 files changed, 113 insertions(+), 12 deletions(-)