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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5DD2DC001E0 for ; Tue, 1 Aug 2023 09:31:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232822AbjHAJbA (ORCPT ); Tue, 1 Aug 2023 05:31:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57674 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232960AbjHAJag (ORCPT ); Tue, 1 Aug 2023 05:30:36 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DF9C33C0B for ; Tue, 1 Aug 2023 02:29:18 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 68332614DF for ; Tue, 1 Aug 2023 09:29:18 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7A642C433C7; Tue, 1 Aug 2023 09:29:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1690882157; bh=cNmlzYkTlShDZRA6sTKyA75Va4rh7bvaixOrFb8LbM4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IdwVB+yUWg4rjZHY9fuVMpt6lD/KpieX2YsSBlYX0TQlVm0dAsS1XUzs0zDL0aCnx teSMlfR6mEJE/NoAZ6JkeL35Ho9Ezh5K7hbLYoalLnIQqI/AYvlJvuppkgdHbN4zdf Vs5PpU1TYOs766NjMZ4i35pdFF5tIRpNbM6qqEj0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, "Rafael J. Wysocki" , Hagar Hemdan Subject: [PATCH 5.15 151/155] cpufreq: intel_pstate: Drop ACPI _PSS states table patching Date: Tue, 1 Aug 2023 11:21:03 +0200 Message-ID: <20230801091915.524439278@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230801091910.165050260@linuxfoundation.org> References: <20230801091910.165050260@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Rafael J. Wysocki commit e8a0e30b742f76ebd0f3b196973df4bf65d8fbbb upstream. After making acpi_processor_get_platform_limit() use the "no limit" value for its frequency QoS request when _PPC returns 0, it is not necessary to replace the frequency corresponding to the first _PSS return package entry with the maximum turbo frequency of the given CPU in intel_pstate_init_acpi_perf_limits() any more, so drop the code doing that along with the comment explaining it. Signed-off-by: Rafael J. Wysocki Tested-by: Hagar Hemdan Signed-off-by: Greg Kroah-Hartman --- drivers/cpufreq/intel_pstate.c | 14 -------------- 1 file changed, 14 deletions(-) --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -448,20 +448,6 @@ static void intel_pstate_init_acpi_perf_ (u32) cpu->acpi_perf_data.states[i].control); } - /* - * The _PSS table doesn't contain whole turbo frequency range. - * This just contains +1 MHZ above the max non turbo frequency, - * with control value corresponding to max turbo ratio. But - * when cpufreq set policy is called, it will call with this - * max frequency, which will cause a reduced performance as - * this driver uses real max turbo frequency as the max - * frequency. So correct this frequency in _PSS table to - * correct max turbo frequency based on the turbo state. - * Also need to convert to MHz as _PSS freq is in MHz. - */ - if (!global.turbo_disabled) - cpu->acpi_perf_data.states[0].core_frequency = - policy->cpuinfo.max_freq / 1000; cpu->valid_pss_table = true; pr_debug("_PPC limits will be enforced\n");