From nobody Fri Dec 19 17:44:16 2025 Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 43B8721A0C for ; Wed, 17 Jan 2024 14:15:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=67.231.148.174 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705500908; cv=none; b=XKNgi+8delOO0DUKY54Qhup9Ia7IpICZ/fFbNLH3aAuUR6bDzF/PoEaXzqc6nHUeT0TRUBzBQd3IVbydsZ18ZoYDqRk2GnedPD9nPjL1C2n9IdMZEHtYUhiQZYE7IxpXMD8NDjfGw0kkAAkbpZKfjyi8IElNndKU3SgM+9h8TOs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705500908; c=relaxed/simple; bh=9nleSWUzKD6TdJg/UJWhtcJTMDxZtwm01y3JBhz3QOM=; h=Received:DKIM-Signature:Received:Received:Received:Received:From: To:CC:Subject:Date:Message-ID:X-Mailer:In-Reply-To:References: MIME-Version:Content-Transfer-Encoding:Content-Type: X-Proofpoint-ORIG-GUID:X-Proofpoint-GUID: X-Proofpoint-Virus-Version; b=YCPPbN1/seOFdMydehH8fLh0tSKkcnN63/WxWDz16XkcXzRe9lX3CFU1Y54poe6eZ75XPQdpK2HQsJETqdge42tes/RSV9N7W9BozbUiCrGXllIthojBlzyGr/pXwxRhf4r5+7+1o+1b2HoF00QD1ksBdZPUD+YJ+7gOzuBXtqk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=marvell.com; spf=pass smtp.mailfrom=marvell.com; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b=fzYLqD2e; arc=none smtp.client-ip=67.231.148.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=marvell.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=marvell.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b="fzYLqD2e" Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 40H7jo69029521; Wed, 17 Jan 2024 06:14:52 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding:content-type; s= pfpt0220; bh=0WIJ5Saq1p5+ZFQkIuWbmHjZZkw8Y3vMm4fuMdgzxlI=; b=fzY LqD2eeckn2TGAN+FrnWZWqW7SnFe6KexzmVa/MZ0cGQZKtT7yF8UIY62FmLQ3kKM GS88UryB4nUx2ZkDBDzZvs8RRX0c6D8Mv83IeebmOFRZzILTr1yVMJ5ImBuvDDlI y/AwwE+mBSDELApc7Z4ZBuF60o1NykgqJiOmO8mXnAZRhlHbk7nuSM3/g0IHyqpx yU5qpaFDba3aL8yNqTEqHBmkXTggThslQ4G8tRX66UlLruN/vt/yQOXYTLPzUAy7 WGtdUELGvDG0HwKXthNBq30CtUQnDhQkeN+mfxtRbsKwv+WflO1A2E8IR1/wmzNL I8n1HebnHTwPSFPxDNQ== Received: from dc5-exch02.marvell.com ([199.233.59.182]) by mx0a-0016f401.pphosted.com (PPS) with ESMTPS id 3vpask952w-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Wed, 17 Jan 2024 06:14:52 -0800 (PST) Received: from DC5-EXCH01.marvell.com (10.69.176.38) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Wed, 17 Jan 2024 06:14:50 -0800 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server id 15.0.1497.48 via Frontend Transport; Wed, 17 Jan 2024 06:14:50 -0800 Received: from localhost.localdomain (unknown [10.28.36.167]) by maili.marvell.com (Postfix) with ESMTP id 25DA35B6931; Wed, 17 Jan 2024 06:14:46 -0800 (PST) From: Amit Singh Tomar To: , CC: , , , , , , , , Amit Singh Tomar Subject: [PATCH v1 10/14] arm_mpam: resctrl: Facilitate writing downstream priority value Date: Wed, 17 Jan 2024 19:44:01 +0530 Message-ID: <20240117141405.3063506-11-amitsinght@marvell.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240117141405.3063506-1-amitsinght@marvell.com> References: <20240117141405.3063506-1-amitsinght@marvell.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-ORIG-GUID: qrSVuiQUoMB2R6Cr5vwbsSEvLyZpLED2 X-Proofpoint-GUID: qrSVuiQUoMB2R6Cr5vwbsSEvLyZpLED2 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-17_08,2024-01-17_01,2023-05-22_02 Content-Type: text/plain; charset="utf-8" This change provides a way to write downstream priority value (passed from schemata file) to arch specific resource control code. The priority value is stored in mpam_config structure, and eventually gets programmed into MPAMCFG_PRI register. Signed-off-by: Amit Singh Tomar --- Changes since RFC: * Schemata write is based on Control type. --- drivers/platform/mpam/mpam_devices.c | 4 ---- drivers/platform/mpam/mpam_resctrl.c | 26 ++++++++++++++++---------- 2 files changed, 16 insertions(+), 14 deletions(-) diff --git a/drivers/platform/mpam/mpam_devices.c b/drivers/platform/mpam/m= pam_devices.c index 589ff1ef2b6b..3ef9e5d70afc 100644 --- a/drivers/platform/mpam/mpam_devices.c +++ b/drivers/platform/mpam/mpam_devices.c @@ -2329,10 +2329,6 @@ int mpam_apply_config(struct mpam_component *comp, u= 16 partid, =20 lockdep_assert_cpus_held(); =20 - if (!memcmp(&comp->cfg[partid], cfg, sizeof(*cfg))) - return 0; - - comp->cfg[partid] =3D *cfg; arg.comp =3D comp; arg.partid =3D partid; =20 diff --git a/drivers/platform/mpam/mpam_resctrl.c b/drivers/platform/mpam/m= pam_resctrl.c index 7a797f9bcaed..42602bffba3f 100644 --- a/drivers/platform/mpam/mpam_resctrl.c +++ b/drivers/platform/mpam/mpam_resctrl.c @@ -925,7 +925,7 @@ int resctrl_arch_update_one(struct rdt_resource *r, str= uct rdt_domain *d, { int err; u32 partid; - struct mpam_config cfg; + struct mpam_config *cfg; struct mpam_props *cprops; struct mpam_resctrl_res *res; struct mpam_resctrl_dom *dom; @@ -940,24 +940,30 @@ int resctrl_arch_update_one(struct rdt_resource *r, s= truct rdt_domain *d, cprops =3D &res->class->props; =20 partid =3D resctrl_get_config_index(closid, t); + cfg =3D &dom->comp->cfg[partid]; if (!r->alloc_capable || partid >=3D resctrl_arch_get_num_closid(r)) return -EINVAL; =20 switch (r->rid) { case RDT_RESOURCE_L2: case RDT_RESOURCE_L3: + if (type =3D=3D SCHEMA_DSPRI) { + cfg->dspri =3D cfg_val; + mpam_set_feature(mpam_feat_dspri_part, cfg); + } else { /* TODO: Scaling is not yet supported */ - cfg.cpbm =3D cfg_val; - mpam_set_feature(mpam_feat_cpor_part, &cfg); + cfg->cpbm =3D cfg_val; + mpam_set_feature(mpam_feat_cpor_part, cfg); + } break; case RDT_RESOURCE_MBA: if (mba_class_use_mbw_part(cprops)) { - cfg.mbw_pbm =3D percent_to_mbw_pbm(cfg_val, cprops); - mpam_set_feature(mpam_feat_mbw_part, &cfg); + cfg->mbw_pbm =3D percent_to_mbw_pbm(cfg_val, cprops); + mpam_set_feature(mpam_feat_mbw_part, cfg); break; } else if (mpam_has_feature(mpam_feat_mbw_max, cprops)) { - cfg.mbw_max =3D percent_to_mbw_max(cfg_val, cprops); - mpam_set_feature(mpam_feat_mbw_max, &cfg); + cfg->mbw_max =3D percent_to_mbw_max(cfg_val, cprops); + mpam_set_feature(mpam_feat_mbw_max, cfg); break; } fallthrough; @@ -971,15 +977,15 @@ int resctrl_arch_update_one(struct rdt_resource *r, s= truct rdt_domain *d, */ if (mpam_resctrl_hide_cdp(r->rid)) { partid =3D resctrl_get_config_index(closid, CDP_CODE); - err =3D mpam_apply_config(dom->comp, partid, &cfg); + err =3D mpam_apply_config(dom->comp, partid, cfg); if (err) return err; =20 partid =3D resctrl_get_config_index(closid, CDP_DATA); - return mpam_apply_config(dom->comp, partid, &cfg); + return mpam_apply_config(dom->comp, partid, cfg); =20 } else { - return mpam_apply_config(dom->comp, partid, &cfg); + return mpam_apply_config(dom->comp, partid, cfg); } } =20 --=20 2.25.1