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=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 11567C433F5 for ; Thu, 30 Aug 2018 16:16:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C10ED20658 for ; Thu, 30 Aug 2018 16:16:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C10ED20658 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727531AbeH3USm (ORCPT ); Thu, 30 Aug 2018 16:18:42 -0400 Received: from foss.arm.com ([217.140.101.70]:44780 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725836AbeH3USl (ORCPT ); Thu, 30 Aug 2018 16:18:41 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id F41E718A; Thu, 30 Aug 2018 09:15:48 -0700 (PDT) Received: from edgewater-inn.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id C482D3F557; Thu, 30 Aug 2018 09:15:48 -0700 (PDT) Received: by edgewater-inn.cambridge.arm.com (Postfix, from userid 1000) id 0DC661AE3614; Thu, 30 Aug 2018 17:16:01 +0100 (BST) From: Will Deacon To: linux-kernel@vger.kernel.org Cc: peterz@infradead.org, benh@au1.ibm.com, torvalds@linux-foundation.org, npiggin@gmail.com, catalin.marinas@arm.com, linux-arm-kernel@lists.infradead.org, Will Deacon Subject: [PATCH 00/12] Avoid synchronous TLB invalidation for intermediate page-table entries on arm64 Date: Thu, 30 Aug 2018 17:15:34 +0100 Message-Id: <1535645747-9823-1-git-send-email-will.deacon@arm.com> X-Mailer: git-send-email 2.1.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello again, This is v1 of the RFC I previously posted here: http://lists.infradead.org/pipermail/linux-arm-kernel/2018-August/597821.html The main changes include: * Rewrite the comment in tlbflush.h to explain the various functions and justify the barrier semantics * Fix the "flush entire ASID" heuristic to work with !4K page sizes * Fixed the build on sh (well, it fails somewhere else that isn't my fault) * Report PxD_SHIFT instead of PxD_SIZE via tlb_get_unmap_shift() It's also had a lot more testing, but has held up nicely so far on arm64. I haven't figured out how to merge this yet, but I'll probably end up pulling the core changes out onto a separate branch. Cheers, Will --->8 Peter Zijlstra (1): asm-generic/tlb: Track freeing of page-table directories in struct mmu_gather Will Deacon (11): arm64: tlb: Use last-level invalidation in flush_tlb_kernel_range() arm64: tlb: Add DSB ISHST prior to TLBI in __flush_tlb_[kernel_]pgtable() arm64: pgtable: Implement p[mu]d_valid() and check in set_p[mu]d() arm64: tlb: Justify non-leaf invalidation in flush_tlb_range() arm64: tlbflush: Allow stride to be specified for __flush_tlb_range() arm64: tlb: Remove redundant !CONFIG_HAVE_RCU_TABLE_FREE code asm-generic/tlb: Guard with #ifdef CONFIG_MMU asm-generic/tlb: Track which levels of the page tables have been cleared arm64: tlb: Adjust stride and type of TLBI according to mmu_gather arm64: tlb: Avoid synchronous TLBIs when freeing page tables arm64: tlb: Rewrite stale comment in asm/tlbflush.h arch/arm64/Kconfig | 1 + arch/arm64/include/asm/pgtable.h | 10 +++- arch/arm64/include/asm/tlb.h | 34 +++++------- arch/arm64/include/asm/tlbflush.h | 112 ++++++++++++++++++++++++-------------- include/asm-generic/tlb.h | 85 +++++++++++++++++++++++++---- mm/memory.c | 4 +- 6 files changed, 168 insertions(+), 78 deletions(-) -- 2.1.4