From patchwork Fri Feb 14 07:43:31 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Tseng X-Patchwork-Id: 13974583 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7FED2C02198 for ; Fri, 14 Feb 2025 07:47:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:Message-ID:Date:Subject:CC:To:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=qnkcrqEZZ2EzdS7FFRlXKuqzpa+542JwGGqoElF5Pm8=; b=Mz9Tjpv7p1ynUcqoeOGXFf1IUX cQqM93rBtZIn00FNgh7qdCpXheiI8dxtsSDH96gQ4g52q4x4EFiKbSrRxs6eVXhBbnjRtyDXAoVM1 YOYk0hshtzd8KeObMrpGnJiTzUvzwLm0lr2GSVgDhpqiL8ov33Na333MzRqP7tiOZAB/jXK+mcNJv 7JSJQyvST/5YWnZzQeQB4cswAOxzrj+CSIUIJs62YkRxa2eSVbuZO7yJzEvrgHOd2cqcDaMHFLxPm 1s/bzldQ4hofI68x6M//iZ87hJG3z4LuWHM4k9T7NsIGznmxr8FAzKGBFQdazcbY+VU0cRARNtEoE J/i2bLzw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tiqQ8-0000000E0JP-2t47; Fri, 14 Feb 2025 07:47:32 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tiqMj-0000000Dzk3-1Lj0; Fri, 14 Feb 2025 07:44:05 +0000 X-UUID: 71e606c8eaa711ef82ff63e91e7eb18c-20250214 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=qnkcrqEZZ2EzdS7FFRlXKuqzpa+542JwGGqoElF5Pm8=; b=Ecd7kKubJaXmx2p9h6OGB3azuIGoDI4uAv7AIFmRWwW3Fjf2mxwUxxkcXGhfG5kptGaXq5sZDSHQKZKT01ulk8xPjQ5Qe3XJytxwD8SMaFfrWagG07tMIgkE5obAUP7fUEWwCKBAh1CQiHq0YgS34tJQLqqLr0cLCZdGxT2/iEg=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.46,REQID:f9f47c66-fa3c-4c2e-b96b-32d439108f3a,IP:0,U RL:0,TC:0,Content:21,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:21 X-CID-META: VersionHash:60aa074,CLOUDID:9fbcbe24-96bd-4ac5-8f2e-15aa1ef9defa,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:4|50,EDM:-3,IP:ni l,URL:0,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES :1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-UUID: 71e606c8eaa711ef82ff63e91e7eb18c-20250214 Received: from mtkmbs14n2.mediatek.inc [(172.21.101.76)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1154846954; Fri, 14 Feb 2025 00:43:56 -0700 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by MTKMBS09N2.mediatek.inc (172.21.101.94) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.28; Fri, 14 Feb 2025 15:43:53 +0800 Received: from mtksitap99.mediatek.inc (10.233.130.16) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1258.28 via Frontend Transport; Fri, 14 Feb 2025 15:43:53 +0800 From: Mark Tseng To: "Rafael J . Wysocki" , Viresh Kumar , MyungJoo Ham , Kyungmin Park , Chanwoo Choi , Matthias Brugger , AngeloGioacchino Del Regno CC: , , , , , Subject: [PATCH v3 0/3] fixed mediatek-cpufreq has multi policy concurrency issue Date: Fri, 14 Feb 2025 15:43:31 +0800 Message-ID: <20250214074353.1169864-1-chun-jen.tseng@mediatek.com> X-Mailer: git-send-email 2.45.2 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250213_234401_363125_37E687CD X-CRM114-Status: UNSURE ( 6.76 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org For multi cluster SoC, the cpufreq->target_index() is re-enter function for each policy to change CPU frequency. In the cirtical session must use glocal mutex lock to avoid get wrong OPP. Changes since v2: - seperate more patch for detail change. - remove CCI transition_delay patch Mark Tseng (3): cpufreq: mediatek: using global lock avoid race condition cpufreq: mediatek: Add CPUFREQ_ASYNC_NOTIFICATION flag cpufreq: mediatek: data safety protect drivers/cpufreq/mediatek-cpufreq.c | 63 ++++++++++++++++++++++-------- 1 file changed, 46 insertions(+), 17 deletions(-)