From patchwork Fri May 19 10:20:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Zijlstra X-Patchwork-Id: 13248176 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 73305C7EE26 for ; Fri, 19 May 2023 10:34:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231993AbjESKeb (ORCPT ); Fri, 19 May 2023 06:34:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53814 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231956AbjESKeU (ORCPT ); Fri, 19 May 2023 06:34:20 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 55DB210C3; Fri, 19 May 2023 03:34:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Subject:Cc:To:From:Date:Message-ID: Sender:Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:In-Reply-To:References; bh=i8/RQiOFGVhuX3oCgXDWVh0oQbt/Cbzp/ltX/NfGGd0=; b=D4LJiuZl6kzCVn4vMC8lP792Br tNAZy6PqDUpZzRoNd/rNPkXt0ciJDb940fpNGE4K76cGofNO5mnpIAUlwWuC98fEtgV4R0PFWFXsi A5ZnNICp6f9Pgplfvg/WInMoh8LDZvMZ25lMirYbqQIulpctckJnfgFkPi8OAoXhi0nC+D3cpL9Y9 TxVhDH78itXDcdxGi8hFHZQOQkMDVAFbo0IuljiCHKtXMdUZimM9wkYFvMeREFHHS+U2oJvbhmAdI 3EBnyaKZd84pnM1i+2fk1H96xqHHC0Gg70mZloG4ubl14zB4pBKoHhsg8boTCYpAANt4ud26eMJDm o5laKIrw==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pzxPw-006Uqb-0r; Fri, 19 May 2023 10:33:00 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id D733530008D; Fri, 19 May 2023 12:32:55 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 0) id AF4AD235EF085; Fri, 19 May 2023 12:32:55 +0200 (CEST) Message-ID: <20230519102058.581557770@infradead.org> User-Agent: quilt/0.66 Date: Fri, 19 May 2023 12:20:58 +0200 From: Peter Zijlstra To: bigeasy@linutronix.de Cc: mark.rutland@arm.com, maz@kernel.org, catalin.marinas@arm.com, will@kernel.org, chenhuacai@kernel.org, kernel@xen0n.name, hca@linux.ibm.com, gor@linux.ibm.com, agordeev@linux.ibm.com, borntraeger@linux.ibm.com, svens@linux.ibm.com, pbonzini@redhat.com, wanpengli@tencent.com, vkuznets@redhat.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, jgross@suse.com, boris.ostrovsky@oracle.com, daniel.lezcano@linaro.org, kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, rafael@kernel.org, peterz@infradead.org, longman@redhat.com, boqun.feng@gmail.com, pmladek@suse.com, senozhatsky@chromium.org, rostedt@goodmis.org, john.ogness@linutronix.de, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vschneid@redhat.com, jstultz@google.com, sboyd@kernel.org, linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, linux-s390@vger.kernel.org, kvm@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH v2 00/13] local_clock() vs noinstr Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Hi All, latest version of the local_clock_noinstr() patches. Most of the changes are in Hyper-V and x86/vdso/gettimeofday; Michael has been very helpful navigating the Hyper-V spec and fixing their sched_clock implementation. Tested-by: Michael Kelley # Hyper-V --- arch/arm64/include/asm/arch_timer.h | 8 +---- arch/arm64/include/asm/io.h | 12 +++---- arch/loongarch/include/asm/loongarch.h | 2 +- arch/loongarch/kernel/time.c | 6 ++-- arch/s390/include/asm/timex.h | 13 ++++--- arch/s390/kernel/time.c | 5 +++ arch/x86/include/asm/mshyperv.h | 5 +++ arch/x86/include/asm/vdso/gettimeofday.h | 41 ++++++++++++++++------ arch/x86/kernel/kvmclock.c | 4 +-- arch/x86/kernel/tsc.c | 38 +++++++++++++++----- arch/x86/kvm/x86.c | 7 ++-- arch/x86/xen/time.c | 3 +- drivers/clocksource/arm_arch_timer.c | 60 ++++++++++++++++++++++++-------- drivers/clocksource/hyperv_timer.c | 44 ++++++++++++++--------- drivers/cpuidle/cpuidle.c | 8 ++--- drivers/cpuidle/poll_state.c | 4 +-- include/clocksource/hyperv_timer.h | 24 +++++-------- include/linux/math64.h | 2 +- include/linux/rbtree_latch.h | 2 +- include/linux/sched/clock.h | 17 ++++++++- include/linux/seqlock.h | 15 ++++---- kernel/printk/printk.c | 2 +- kernel/sched/clock.c | 19 ++++++---- kernel/time/sched_clock.c | 24 +++++++++---- kernel/time/timekeeping.c | 4 +-- 25 files changed, 242 insertions(+), 127 deletions(-)