From patchwork Tue Nov 10 18:30:51 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Giovanni Gherdovich X-Patchwork-Id: 323401 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=-6.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 2FF2EC55ABD for ; Tue, 10 Nov 2020 18:31:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EA3572168B for ; Tue, 10 Nov 2020 18:31:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730705AbgKJSbH (ORCPT ); Tue, 10 Nov 2020 13:31:07 -0500 Received: from mx2.suse.de ([195.135.220.15]:34534 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730468AbgKJSbH (ORCPT ); Tue, 10 Nov 2020 13:31:07 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id C75F4ABD1; Tue, 10 Nov 2020 18:31:05 +0000 (UTC) From: Giovanni Gherdovich To: Borislav Petkov , Thomas Gleixner , Ingo Molnar , Peter Zijlstra , Len Brown , "Rafael J . Wysocki" Cc: Jon Grimm , Nathan Fontenot , Yazen Ghannam , Thomas Lendacky , Mel Gorman , Pu Wen , Viresh Kumar , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Doug Smythies , x86@kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, Giovanni Gherdovich Subject: [PATCH v2 0/3] Add support for frequency invariance to AMD EPYC Zen2 Date: Tue, 10 Nov 2020 19:30:51 +0100 Message-Id: <20201110183054.15883-1-ggherdovich@suse.cz> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org v1 at https://lore.kernel.org/lkml/20201110083936.31994-1-ggherdovich@suse.cz/ Changes wrt v1: - made initialization safe under CPU hotplug. The function init_freq_invariance_cppc now lets only the first caller into init_freq_invariance(). Giovanni Gherdovich (2): x86, sched: Use midpoint of max_boost and max_P for frequency invariance on AMD EPYC x86: Print ratio freq_max/freq_base used in frequency invariance calculations Nathan Fontenot (1): x86, sched: Calculate frequency invariance for AMD systems arch/x86/include/asm/topology.h | 8 ++++ arch/x86/kernel/smpboot.c | 84 +++++++++++++++++++++++++++++++-- drivers/acpi/cppc_acpi.c | 3 ++ 3 files changed, 90 insertions(+), 5 deletions(-)