From patchwork Wed Dec 21 15:52:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pratyush Yadav X-Patchwork-Id: 635903 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 82CA2C3DA7B for ; Wed, 21 Dec 2022 15:52:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234357AbiLUPwX (ORCPT ); Wed, 21 Dec 2022 10:52:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46168 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233766AbiLUPwW (ORCPT ); Wed, 21 Dec 2022 10:52:22 -0500 Received: from smtp-fw-9103.amazon.com (smtp-fw-9103.amazon.com [207.171.188.200]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 35FB71A396; Wed, 21 Dec 2022 07:52:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.de; i=@amazon.de; q=dns/txt; s=amazon201209; t=1671637941; x=1703173941; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=9YK/PrzS2uS8rT8WWzdNdUDB+lVs6VKHUehwJrBeLqk=; b=e1UzpUf3gWZdp5oBcj/RZ+J7d6Eull+5y5ftmBaAL79h73T8EDVSdcIz bZ7tZD+yrcRKIuKIDC/Ne9Ap5XX9UPayHx3Kawtu3Adf3qE1qc6TitnSb RcOKAgWFgDBlTcIkDoGuddWHXv9XJZRlWUrtuRZmtyTNH9etMwY4FulCE 0=; X-IronPort-AV: E=Sophos;i="5.96,262,1665446400"; d="scan'208";a="1085825342" Received: from pdx4-co-svc-p1-lb2-vlan3.amazon.com (HELO email-inbound-relay-iad-1d-m6i4x-b404fda3.us-east-1.amazon.com) ([10.25.36.214]) by smtp-border-fw-9103.sea19.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Dec 2022 15:52:13 +0000 Received: from EX13D47EUB001.ant.amazon.com (iad12-ws-svc-p26-lb9-vlan3.iad.amazon.com [10.40.163.38]) by email-inbound-relay-iad-1d-m6i4x-b404fda3.us-east-1.amazon.com (Postfix) with ESMTPS id 806BB863B5; Wed, 21 Dec 2022 15:52:10 +0000 (UTC) Received: from EX19D028EUB002.ant.amazon.com (10.252.61.43) by EX13D47EUB001.ant.amazon.com (10.43.166.250) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Wed, 21 Dec 2022 15:52:09 +0000 Received: from EX13MTAUEA001.ant.amazon.com (10.43.61.82) by EX19D028EUB002.ant.amazon.com (10.252.61.43) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.1118.20; Wed, 21 Dec 2022 15:52:09 +0000 Received: from dev-dsk-ptyadav-1c-37607b33.eu-west-1.amazon.com (10.15.11.255) by mail-relay.amazon.com (10.43.61.243) with Microsoft SMTP Server id 15.0.1497.42 via Frontend Transport; Wed, 21 Dec 2022 15:52:08 +0000 Received: by dev-dsk-ptyadav-1c-37607b33.eu-west-1.amazon.com (Postfix, from userid 23027615) id 2B4AF20D08; Wed, 21 Dec 2022 16:52:07 +0100 (CET) From: Pratyush Yadav To: CC: Pratyush Yadav , "Rafael J. Wysocki" , Len Brown , Srinivas Pandruvada , Viresh Kumar , Robert Moore , , , Subject: [PATCH 0/2] intel_pstate: fix turbo not being used after a processor is rebooted Date: Wed, 21 Dec 2022 16:52:01 +0100 Message-ID: <20221221155203.11347-1-ptyadav@amazon.de> X-Mailer: git-send-email 2.38.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org When a processor is brought offline and online again, it is unable to use Turbo mode because the _PSS table does not contain the whole turbo frequency range, but only +1 MHz above the max non-turbo frequency. This causes problems when ACPI processor driver tries to set frequency constraints. See patch 2 for more details. Pratyush Yadav (2): acpi: processor: allow fixing up the frequency for a performance state cpufreq: intel_pstate: use acpi perflib to update turbo frequency drivers/acpi/processor_perflib.c | 40 ++++++++++++++++++++++++++++++++ drivers/cpufreq/intel_pstate.c | 5 ++-- include/acpi/processor.h | 2 ++ 3 files changed, 45 insertions(+), 2 deletions(-) --- 2.38.1