From patchwork Wed Jun 19 22:41:29 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sagar Cheluvegowda X-Patchwork-Id: 13704681 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 EC6DFC2BA1A for ; Wed, 19 Jun 2024 22:42:37 +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:CC:To:In-Reply-To:References :Message-ID:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=SVBosD0cckDDDukS9FRgBe5KOHuw90QrGmNULCbI7Ig=; b=cqeNcIr9XMCXfZD5M+39cs7gz9 rpKeh6vzTkTAgV3mWnP/2mEsqOADXkLTetLIpwL8LZJYAW3SRbTtKxFj70Yz7nRl4ZZkiwjJuXoe8 j8Fs3gpxzZ/kePPBORHvDYTj9JhhHHPgETooM08KK/DKMAPZntGTjkRj9JaWXMBXsgqufFXvRvGXE 6gjOSND4yi9yHmQ4FHYtAfsFeHPLzu7yKSYNCzG8TTAAVZBZyqsWyoUid1bK3ar/gmEE3Z+5Zk+AS jAPSDIvgIUOmELcb450J9803TstkkwJqCAIVL06J0X0/afzhC/77+OWCMjHmC4mmWVzEwBuSyMzWq bXT5fbTQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sK408-00000002uWz-1T3z; Wed, 19 Jun 2024 22:42:00 +0000 Received: from mx0b-0031df01.pphosted.com ([205.220.180.131]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sK404-00000002uUs-1CDs for linux-arm-kernel@lists.infradead.org; Wed, 19 Jun 2024 22:41:58 +0000 Received: from pps.filterd (m0279868.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 45JEwP8w025323; Wed, 19 Jun 2024 22:41:42 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= SVBosD0cckDDDukS9FRgBe5KOHuw90QrGmNULCbI7Ig=; b=DSMn3vrBPlN8x8dG kzv4PInqwET2pJsy7mkHqw33wJaxFeU4RWjvqMqiinYcSF5Zvr6fAt0oyGsXOdOg /FirBeuUHJGeQIbnK5i0OSlFDX4Bd+NkgoCKbT6GBkL3ORBwEQlEIXm5heBcbLDW cDEErZYXb+dqp/6ji8eHkktvj8q4EOKHE4xwqTdY6IQFC5ckdnHdy3LF9mhNYe/7 qrXaqkB46ZywKXLHma9Y78hYEozyGuHzspg3sVM1nNN6ElG0ub4AC+6WtZv0zIDC yFpqBS3lWt8v2PjZTEQKt5vQZLumkKNabuyur7VNAP3av3cBb+vj4LgQDSkhiaQ6 Mblhaw== Received: from nasanppmta03.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3yv1j90ugq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 19 Jun 2024 22:41:41 +0000 (GMT) Received: from nasanex01b.na.qualcomm.com (nasanex01b.na.qualcomm.com [10.46.141.250]) by NASANPPMTA03.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 45JMfePc014344 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 19 Jun 2024 22:41:40 GMT Received: from hu-scheluve-lv.qualcomm.com (10.80.80.8) by nasanex01b.na.qualcomm.com (10.46.141.250) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Wed, 19 Jun 2024 15:41:37 -0700 From: Sagar Cheluvegowda Date: Wed, 19 Jun 2024 15:41:29 -0700 Subject: [PATCH 1/3] net: stmmac: Add interconnect support in qcom-ethqos driver MIME-Version: 1.0 Message-ID: <20240619-icc_bw_voting_from_ethqos-v1-1-6112948b825e@quicinc.com> References: <20240619-icc_bw_voting_from_ethqos-v1-0-6112948b825e@quicinc.com> In-Reply-To: <20240619-icc_bw_voting_from_ethqos-v1-0-6112948b825e@quicinc.com> To: Vinod Koul , Alexandre Torgue , Jose Abreu , "David S. Miller" , Eric Dumazet , "Jakub Kicinski" , Paolo Abeni , Maxime Coquelin , Russell King , "Rob Herring" , Krzysztof Kozlowski , "Conor Dooley" , Bhupesh Sharma CC: , Andrew Halaney , , , , , , , Sagar Cheluvegowda X-Mailer: b4 0.13.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nasanex01b.na.qualcomm.com (10.46.141.250) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: duFoa2E8woNImEbeTdxGkeC2A237LtLj X-Proofpoint-GUID: duFoa2E8woNImEbeTdxGkeC2A237LtLj X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-06-19_02,2024-06-19_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 impostorscore=0 bulkscore=0 suspectscore=0 mlxlogscore=999 lowpriorityscore=0 priorityscore=1501 phishscore=0 mlxscore=0 adultscore=0 clxscore=1015 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2405170001 definitions=main-2406190170 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240619_154156_579559_C81AC001 X-CRM114-Status: GOOD ( 17.59 ) 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 Add interconnect support in qcom-ethqos driver to vote for bus bandwidth based on the current speed of the driver. This change adds support for two different paths - one from ethernet to DDR and the other from Apps to ethernet. Vote from each interconnect client is aggregated and the on-chip interconnect hardware is configured to the most appropriate bandwidth profile. Signed-off-by: Sagar Cheluvegowda --- .../net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c index e254b21fdb59..682e68f37dbd 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c @@ -7,6 +7,7 @@ #include #include #include +#include #include "stmmac.h" #include "stmmac_platform.h" @@ -113,6 +114,9 @@ struct qcom_ethqos { unsigned int num_por; bool rgmii_config_loopback_en; bool has_emac_ge_3; + + struct icc_path *axi_icc_path; + struct icc_path *ahb_icc_path; }; static int rgmii_readl(struct qcom_ethqos *ethqos, unsigned int offset) @@ -668,12 +672,19 @@ static int ethqos_configure(struct qcom_ethqos *ethqos) return ethqos->configure_func(ethqos); } +static void ethqos_set_icc_bw(struct qcom_ethqos *ethqos, unsigned int speed) +{ + icc_set_bw(ethqos->axi_icc_path, Mbps_to_icc(speed), Mbps_to_icc(speed)); + icc_set_bw(ethqos->ahb_icc_path, Mbps_to_icc(speed), Mbps_to_icc(speed)); +} + static void ethqos_fix_mac_speed(void *priv, unsigned int speed, unsigned int mode) { struct qcom_ethqos *ethqos = priv; ethqos->speed = speed; ethqos_update_link_clk(ethqos, speed); + ethqos_set_icc_bw(ethqos, speed); ethqos_configure(ethqos); } @@ -813,6 +824,14 @@ static int qcom_ethqos_probe(struct platform_device *pdev) return dev_err_probe(dev, PTR_ERR(ethqos->link_clk), "Failed to get link_clk\n"); + ethqos->axi_icc_path = devm_of_icc_get(dev, "axi_icc_path"); + if (IS_ERR(ethqos->axi_icc_path)) + return PTR_ERR(ethqos->axi_icc_path); + + ethqos->ahb_icc_path = devm_of_icc_get(dev, "ahb_icc_path"); + if (IS_ERR(ethqos->axi_icc_path)) + return PTR_ERR(ethqos->axi_icc_path); + ret = ethqos_clks_config(ethqos, true); if (ret) return ret;