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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,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 3F712C2BA18 for ; Fri, 3 Apr 2020 09:01:22 +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 F0F7420721 for ; Fri, 3 Apr 2020 09:01:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="NbIkrOuV" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F0F7420721 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+infradead-linux-arm-kernel=archiver.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=IbakwztlzJ3eVe8mENpOdLBA6b7Dr2x1PWRzJpp1lwM=; b=NbIkrOuV30pmQ8 qXOm5cUqH50DQvFxRQDxQ+icBVJJlCasMnZdPoUv4roDqCSNWcnIDJTHu4csLWGOrvX/Fs9SLb4tc yviWV+7Uuw8v5bHDeMsNCcBpHee7Eg5NR+/yVd4phJ2vvsgI3u9O3dstOPUVfpfVwt0KPFSoPYNQd N41btW9jXhu5cX3o6fhA6bR4tuM8Sr4w11y68nep694mJATKm0dJkUb4wFdWZuMF8kcX/xJU6ldGD 7chpeifmrDoEn8KhmQqsCJvA5tgtiN+9DL0JblRFQoPZEBFh1ft26f55D8X8OxyNYriEhu53QxMxS jsmJMv0BucZ2Ozit4bKg==; 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 1jKICW-0004cy-TP; Fri, 03 Apr 2020 09:01:21 +0000 Received: from szxga07-in.huawei.com ([45.249.212.35] helo=huawei.com) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jKICN-0004Rw-8w for linux-arm-kernel@lists.infradead.org; Fri, 03 Apr 2020 09:01:13 +0000 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: , , , , , , , , , , , , , , , , 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 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-20200403_020111_942037_503E55B8 X-CRM114-Status: UNSURE ( 8.36 ) X-CRM114-Notice: Please train this message. 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, kuhn.chenqun@huawei.com, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.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. 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(-) -- 2.19.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel