From nobody Fri Dec 19 17:44:16 2025 Received: from mx0b-0016f401.pphosted.com (mx0b-0016f401.pphosted.com [67.231.156.173]) (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 18E7820B1E for ; Wed, 17 Jan 2024 14:15:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=67.231.156.173 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705500925; cv=none; b=HCHdBm7kRzHHA2vqynzgoyg63s5WOJMMkd2w2IFPTzTS+l2PtQKlweOD06ExdB12pExLHvq/QYrzl1fArewf06BJ/esedJ7aeXtly3owqeiQdpvaNQFvGLlw69lRmG0DMXK1enE/Zvbz2C+xmNS9m1Ejl7/VvT2NveeVKDck//M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705500925; c=relaxed/simple; bh=Imf7O7zcNOVCd81mclixADJXwQRt2xYwWPLl/E/y0Hc=; 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-GUID:X-Proofpoint-ORIG-GUID: X-Proofpoint-Virus-Version; b=XAj2sM4h2BGKQa1K4iyMusOOPaYT3VBJMxxbhZgUFw2vRKPyudMPKICbiwV30TNMxi7e+1NxKUS7fWf5qc7PHz6IQbGT2v/RZz7KBej3BS3xwF+pTamYWG7fRv3YDRX/xxNdE3s45Z7TABG6rnZMpID8vwC/DSkNbdk36sGtsYo= 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=kdHSy9Px; arc=none smtp.client-ip=67.231.156.173 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="kdHSy9Px" Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 40H8Ydfc012684; Wed, 17 Jan 2024 06:15:00 -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=AyLoq4qCvNRklZsb/iMNJS5tPScAkgwgIIVRtypuMfA=; b=kdH Sy9Px9R7Tvl0q0/LYGJ+MZyus/ZDTBeBOZy34UQ9y2H9pwUcWnTzOS7W3NwtO/sM y8eVeyPel4oTGTL0sIugJbEAbmjOE73fmhn62MPlfZR7mqnN/LrI9CyaqJMyCgtb +PrqOmXTw0FUTqXeHlmXsFO9sS1VuIQZGohS8AYJXa0Srvi6bke3M8czpke7q/q1 oa+QtSyI6pvH0UsI6lfC/v9rcw2Ggp2PdRlGBoQeFPckXoi8uGsZLS0I9a8FRI8k wiqHsjKFL8kGXDbabTOG0ZjMhmlolBwO4WM4HBgFmvrYh8ds2yponi2/E3uay9UJ u6Z2Sc138bK8bCvMTRA== Received: from dc5-exch01.marvell.com ([199.233.59.181]) by mx0b-0016f401.pphosted.com (PPS) with ESMTPS id 3vp0ge393y-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Wed, 17 Jan 2024 06:15:00 -0800 (PST) Received: from DC5-EXCH02.marvell.com (10.69.176.39) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Wed, 17 Jan 2024 06:14:58 -0800 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server id 15.0.1497.48 via Frontend Transport; Wed, 17 Jan 2024 06:14:58 -0800 Received: from localhost.localdomain (unknown [10.28.36.167]) by maili.marvell.com (Postfix) with ESMTP id D7A7D5B6931; Wed, 17 Jan 2024 06:14:54 -0800 (PST) From: Amit Singh Tomar To: , CC: , , , , , , , , Amit Singh Tomar Subject: [PATCH v1 12/14] arm_mpam: Program Downstream priority value Date: Wed, 17 Jan 2024 19:44:03 +0530 Message-ID: <20240117141405.3063506-13-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-GUID: zpp2hqTM8jJAkQKnD65_Nno9V8gilWRY X-Proofpoint-ORIG-GUID: zpp2hqTM8jJAkQKnD65_Nno9V8gilWRY 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" Now that Downstream priorities values can be passed from resource control schemata file, let's program it into memory mapped Priority Partition Configuration Register. Signed-off-by: Amit Singh Tomar --- Changes since RFC: * Priority value is inverted based on DSPRI_0_IS_LOW value. --- drivers/platform/mpam/mpam_devices.c | 28 ++++++++++++++++++++++------ 1 file changed, 22 insertions(+), 6 deletions(-) diff --git a/drivers/platform/mpam/mpam_devices.c b/drivers/platform/mpam/m= pam_devices.c index 9953f2050d35..388d57281fd8 100644 --- a/drivers/platform/mpam/mpam_devices.c +++ b/drivers/platform/mpam/mpam_devices.c @@ -1101,6 +1101,7 @@ static void mpam_reprogram_ris_partid(struct mpam_msc= _ris *ris, u16 partid, struct mpam_props *rprops =3D &ris->props; u16 dspri =3D GENMASK((rprops->dspri_wd - 1), 0); u16 intpri =3D GENMASK((rprops->intpri_wd - 1), 0); + u8 dspri_part_0_low, dspri_rprops, dspri_cfg; =20 lockdep_assert_held(&msc->lock); =20 @@ -1143,18 +1144,33 @@ static void mpam_reprogram_ris_partid(struct mpam_m= sc_ris *ris, u16 partid, if (mpam_has_feature(mpam_feat_ccap_part, rprops)) mpam_write_partsel_reg(msc, CMAX, cmax); =20 - if (mpam_has_feature(mpam_feat_intpri_part, rprops) || - mpam_has_feature(mpam_feat_dspri_part, rprops)) { + if (mpam_has_feature(mpam_feat_intpri_part, rprops)) { /* aces high? */ if (!mpam_has_feature(mpam_feat_intpri_part_0_low, rprops)) intpri =3D 0; - if (!mpam_has_feature(mpam_feat_dspri_part_0_low, rprops)) - dspri =3D 0; =20 if (mpam_has_feature(mpam_feat_intpri_part, rprops)) pri_val |=3D FIELD_PREP(MPAMCFG_PRI_INTPRI, intpri); - if (mpam_has_feature(mpam_feat_dspri_part, rprops)) - pri_val |=3D FIELD_PREP(MPAMCFG_PRI_DSPRI, dspri); + + mpam_write_partsel_reg(msc, PRI, pri_val); + } + + dspri_rprops =3D mpam_has_feature(mpam_feat_dspri_part, + rprops); + dspri_part_0_low =3D mpam_has_feature(mpam_feat_dspri_part_0_low, + rprops); + if (dspri_rprops) { + dspri_cfg =3D mpam_has_feature(mpam_feat_dspri_part, + cfg); + if (dspri_cfg) { + pri_val |=3D (!dspri_part_0_low) + ? FIELD_PREP(MPAMCFG_PRI_DSPRI, cfg->dspri ^ dspri) + : FIELD_PREP(MPAMCFG_PRI_DSPRI, cfg->dspri & dspri); + } else { + pri_val |=3D (!dspri_part_0_low) + ? FIELD_PREP(MPAMCFG_PRI_DSPRI, 0) + : FIELD_PREP(MPAMCFG_PRI_DSPRI, dspri); + } =20 mpam_write_partsel_reg(msc, PRI, pri_val); } --=20 2.25.1