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: 11455477 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 650D592A for ; Tue, 24 Mar 2020 13:47:18 +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 44695206F6 for ; Tue, 24 Mar 2020 13:47:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="RZnSoZEL" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 44695206F6 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=NopTsUtuR7vHMDwPHAJmnEfaGoO175qmjMSx5S3n6P4=; b=RZnSoZELRkS6BN TtQ65XQgrlZWg2rat7md7sR30EOfNVaSWHaHMnA2VEiMDCea12EuA3wlhB+iwwj1IsRIJ3g3u3qPO 67EhfMVvvZquaMTFnQ3+Sr8v1bO4pVm0YzcK/K/+UJfR9lt7IgbODBlEeqf8ofnzDcXRub2QW2lBP yrBjNXV428O3qikgHvWrygo++ZrjHEJhBeEIKcpdi5mahKN0pIDlrFk/ZEbZ2+CPAVqFRnN3vqXRQ ufQSW7PQst/IeZQQvUEi9WziKKb/+kuYmVfRssAsPuVwuw5p8r3KsPx3IWQBecSSQp1Uwo7gP7sYy unN3ApyiWdySMZbVt5vg==; 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 1jGjtf-0007TW-8k; Tue, 24 Mar 2020 13:47:11 +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 1jGjsm-0006cV-U4 for linux-arm-kernel@lists.infradead.org; Tue, 24 Mar 2020 13:46:19 +0000 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: , , , , , , , , , , , , , , , , 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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200324_064617_564708_CC3D60C6 X-CRM114-Status: UNSURE ( 9.14 ) 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_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO 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 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(-)