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: 13216445 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 A5726C6FD18 for ; Wed, 19 Apr 2023 06:32:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id: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=xxXP1zdiAl77RAjS+cvWntA2322xYky86bPu7VNahXk=; b=v0JKTx31ddfeqB cncAbf08/xgDAxPhPRsb921S38UrC+hhhxvE9eGmIpPv8VQ5YmWQoUWqSwKYlBTy6C65MNLGSI+Sh SKvMGUSSgEhbsFwtCSuyamaAtYAOqEhaO2IwyWrUjrL2HUtFJ9XVcJQUxmUVFkGW3YrGc5KlsTwMc hzA6N5ncwvuN6oQDXaRN2ICrcdPO80GDe+AJHJRF23u5CWjYIkads9Hpm3YUMCEAksVfzcIc6nbYM 6kpqDlhskFnVEDL1So5tRb3BNNzie9/EqYVKiFwSwcp5n/OXhI2QZogsWw1o+m8CiD46AOPWSVMTf 3DMBO8ISUCE6X1TP6+Rg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pp1LM-004FN1-1X; Wed, 19 Apr 2023 06:31:04 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pp1LI-004FLH-2q; Wed, 19 Apr 2023 06:31:02 +0000 X-UUID: bc8aeb42de7b11edb7d8d11f642b8e78-20230418 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:b13473a8-228a-4fea-8df6-951121171fc8,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:2450d2a1-8fcb-430b-954a-ba3f00fa94a5,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: bc8aeb42de7b11edb7d8d11f642b8e78-20230418 Received: from mtkmbs13n2.mediatek.inc [(172.21.101.108)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1044871954; Tue, 18 Apr 2023 23:30:54 -0700 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230418_233100_949474_587A5D38 X-CRM114-Status: GOOD ( 10.59 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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)