From patchwork Wed Apr 19 06:30:48 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?V2VuYmluIE1laSAo5qKF5paH5b2sKQ==?= X-Patchwork-Id: 675808 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 56D83C6FD18 for ; Wed, 19 Apr 2023 06:31:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231895AbjDSGbv (ORCPT ); Wed, 19 Apr 2023 02:31:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48668 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232242AbjDSGbq (ORCPT ); Wed, 19 Apr 2023 02:31:46 -0400 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BDD13B759; Tue, 18 Apr 2023 23:31:15 -0700 (PDT) X-UUID: bbcdf834de7b11edb6b9f13eb10bd0fe-20230419 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=H3VdK/Wg34P97Kr/kokR5AgdCJlvacRK9WvxPDBE7no=; b=DHB7kvriA+IJS8JZFwt5kAvAlyDTMMjwIPyuyMO9HtPrfi92cE2KgOy3bK2saSlZMuGhaDtSY1rkhuOc/SzonAEF9cq2ZhOssBhzR+DGhSD7RcD9JuwiM4ycRW5BaXW0Bbt2f1AkguVAVXDNCTS8LocnKVUc2HSK092tMbWS4+4=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.22, REQID:13d0b01d-c9c8-4623-9703-2e777e6e2e4c, IP:0, U RL:0,TC:0,Content:-5,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:-5 X-CID-META: VersionHash:120426c, CLOUDID:521c74eb-db6f-41fe-8b83-13fe7ed1ef52, B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-UUID: bbcdf834de7b11edb6b9f13eb10bd0fe-20230419 Received: from mtkmbs11n2.mediatek.inc [(172.21.101.187)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 416791583; Wed, 19 Apr 2023 14:30:53 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs13n1.mediatek.inc (172.21.101.193) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.25; Wed, 19 Apr 2023 14:30:51 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.25 via Frontend Transport; Wed, 19 Apr 2023 14:30:51 +0800 From: Wenbin Mei To: Ulf Hansson CC: Chaotian Jing , Matthias Brugger , AngeloGioacchino Del Regno , , , , , Wenbin Mei Subject: [PATCH] mmc: mtk-sd: reduce CIT for better performance Date: Wed, 19 Apr 2023 14:30:48 +0800 Message-ID: <20230419063048.10516-1-wenbin.mei@mediatek.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org CQHCI_SSC1 indicates to CQE the polling period to use when using periodic SEND_QUEUE_STATUS(CMD13) polling. The default value is 0x1000, now change it to 0x40, which can improve the performance of some eMMC devices. Signed-off-by: Wenbin Mei --- drivers/mmc/host/mtk-sd.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c index edade0e54a0c..483353ea3a99 100644 --- a/drivers/mmc/host/mtk-sd.c +++ b/drivers/mmc/host/mtk-sd.c @@ -2453,6 +2453,7 @@ static void msdc_hs400_enhanced_strobe(struct mmc_host *mmc, static void msdc_cqe_enable(struct mmc_host *mmc) { struct msdc_host *host = mmc_priv(mmc); + struct cqhci_host *cq_host = mmc->cqe_private; /* enable cmdq irq */ writel(MSDC_INT_CMDQ, host->base + MSDC_INTEN); @@ -2462,6 +2463,8 @@ static void msdc_cqe_enable(struct mmc_host *mmc) msdc_set_busy_timeout(host, 20 * 1000000000ULL, 0); /* default read data timeout 1s */ msdc_set_timeout(host, 1000000000ULL, 0); + + cqhci_writel(cq_host, 0x40, CQHCI_SSC1); } static void msdc_cqe_disable(struct mmc_host *mmc, bool recovery)