From nobody Tue Feb 10 21:59:28 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) client-ip=66.175.222.108; envelope-from=bounce+27952+90418+1787277+3901457@groups.io; helo=mail02.groups.io; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce+27952+90418+1787277+3901457@groups.io; dmarc=fail(p=none dis=none) header.from=arm.com ARC-Seal: i=1; a=rsa-sha256; t=1654798817; cv=none; d=zohomail.com; s=zohoarc; b=E4LVZldvEOGnNREpLeiJwyjpk8c0hOXPvoa/fPkL2WOcuRzgTurifL3HnVKsZ2qVF0MFR2Ji4UIyNQvJKSd+r8PonV0hWBZ4vG96NxSwh6u0BxEmtanLBjY0rG0LxkZV93akSc7lxG0ybMstSOqLxRzOLT8W46RQnwsuFECRuoc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1654798817; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:References:Sender:Subject:To; bh=lEXMYWBm2sC428oEsEd9+mjkBQsfYgzZ2+nX5o0vqw4=; b=MXd0QA89cHk20s8/yFf3UCBg5WCrmHsBcWXDqJ6IxnHUIX58Rouyuksw6BtS6zFzkoV3MndyjDMZocQRLXJiEWfGULLRoFtHBoTki+OdoDFL9L1qT3Rw+57DR6Ha0vxPQBUiCGSjbiEcfeAUfcV55pnOeM895GXEz5e2YlWEvqc= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce+27952+90418+1787277+3901457@groups.io; dmarc=fail header.from= (p=none dis=none) Received: from mail02.groups.io (mail02.groups.io [66.175.222.108]) by mx.zohomail.com with SMTPS id 1654798817820300.58842766251485; Thu, 9 Jun 2022 11:20:17 -0700 (PDT) Return-Path: X-Received: by 127.0.0.2 with SMTP id hb9zYY1788612xYwCM8QglwU; Thu, 09 Jun 2022 11:20:17 -0700 X-Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mx.groups.io with SMTP id smtpd.web10.17071.1654798816302336882 for ; Thu, 09 Jun 2022 11:20:16 -0700 X-Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 2352D139F; Thu, 9 Jun 2022 11:20:16 -0700 (PDT) X-Received: from usa.arm.com (unknown [10.162.16.33]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id D45F13F766; Thu, 9 Jun 2022 11:20:14 -0700 (PDT) From: "Pranav Madhu" To: devel@edk2.groups.io Cc: Ard Biesheuvel , Sami Mujawar Subject: [edk2-devel] [edk2-platforms][PATCH V1 7/7] Platform/Sgi: Fix ACPI Low Power Idle states for RD-N2-Cfg1 Date: Thu, 9 Jun 2022 23:49:55 +0530 Message-Id: <20220609181955.3018033-8-pranav.madhu@arm.com> In-Reply-To: <20220609181955.3018033-1-pranav.madhu@arm.com> References: <20220609181955.3018033-1-pranav.madhu@arm.com> MIME-Version: 1.0 Precedence: Bulk List-Unsubscribe: List-Subscribe: List-Help: Sender: devel@edk2.groups.io List-Id: Mailing-List: list devel@edk2.groups.io; contact devel+owner@edk2.groups.io Reply-To: devel@edk2.groups.io,pranav.madhu@arm.com X-Gm-Message-State: aHd8Bofr4NLSUTDPJyzu8ZxZx1787277AA= Content-Transfer-Encoding: quoted-printable DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1654798817; bh=/tWmVRLvbE5ZaokgDHr9luyIE34JOhtOWEJSCZlHJHs=; h=Cc:Date:From:Reply-To:Subject:To; b=OK4tolZwqhZvOz8eIZDv9NOgEac7ZBIBWF/we9tpXtSInxiaRvPQjAjeCu2NHALt5xQ aBG6Ra/sWi8zYrMULrdWkmf1zqOVWLoMQaKVFm3ZRuz3sTDi7lrP6eqimQmPjAfl2NHTw 8fWga67+ZGgyHDcYykinBX3kvIjrpttpGf4= X-ZohoMail-DKIM: pass (identity @groups.io) X-ZM-MESSAGEID: 1654798819615100031 Content-Type: text/plain; charset="utf-8" RD-N2-Cfg1 platform supports only the platform co-ordinated LPI. So fix the LPI Level ID value accordingly. Additionally, as this platform does not support residency counter, clear the residency counter frequency from _LPI object's control method. As the cpus are directly connected to the interconnect on this platform, remove the cluster _LPI control method as well. Signed-off-by: Pranav Madhu --- Platform/ARM/SgiPkg/AcpiTables/RdN2Cfg1/Dsdt.asl | 54 ++------------------ 1 file changed, 4 insertions(+), 50 deletions(-) diff --git a/Platform/ARM/SgiPkg/AcpiTables/RdN2Cfg1/Dsdt.asl b/Platform/AR= M/SgiPkg/AcpiTables/RdN2Cfg1/Dsdt.asl index b6decc77f480..2e9e588806c6 100644 --- a/Platform/ARM/SgiPkg/AcpiTables/RdN2Cfg1/Dsdt.asl +++ b/Platform/ARM/SgiPkg/AcpiTables/RdN2Cfg1/Dsdt.asl @@ -68,38 +68,16 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", = "ARMSGI", Return (Arg3) } =20 - Name (CLPI, Package () { /* LPI for Cluster, support 1 LPI state */ - 0, // Version - 0, // Level Index - 1, // Count - Package () { // Power Gating state for Cluster - 2500, // Min residency (uS) - 1150, // Wake latency (uS) - 1, // Flags - 1, // Arch Context Flags - 100, // Residency Counter Frequency - 0, // No Parent State - 0x00000020, // Integer Entry method - ResourceTemplate () { // Null Residency Counter - Register (SystemMemory, 0, 0, 0, 0) - }, - ResourceTemplate () { // Null Usage Counter - Register (SystemMemory, 0, 0, 0, 0) - }, - "LPI2-Cluster" - }, - }) - Name (PLPI, Package () { /* LPI for Processor, support 2 LPI states */ 0, // Version - 1, // Level Index + 0, // Level Index 2, // Count Package () { // WFI for CPU 1, // Min residency (uS) 1, // Wake latency (uS) 1, // Flags 0, // Arch Context lost Flags (no loss) - 100, // Residency Counter Frequency + 0, // Residency Counter Frequency 0, // No parent state ResourceTemplate () { // Register Entry method Register (FFixedHW, @@ -122,8 +100,8 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", = "ARMSGI", 350, // Wake latency (uS) 1, // Flags 1, // Arch Context lost Flags (Core context los= t) - 100, // Residency Counter Frequency - 1, // Parent node can be in any shallower state + 0, // Residency Counter Frequency + 0, // No parent state ResourceTemplate () { // Register Entry method Register (FFixedHW, 32, // Bit Width @@ -145,9 +123,6 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", = "ARMSGI", Device (CL00) { // Cluster 0 Name (_HID, "ACPI0010") Name (_UID, 0) - Method (_LPI, 0, NotSerialized) { - Return (\_SB.CLPI) - } =20 Device (CP00) { // Neoverse N2 core 0 Name (_HID, "ACPI0007") @@ -172,9 +147,6 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", = "ARMSGI", Device (CL01) { // Cluster 1 Name (_HID, "ACPI0010") Name (_UID, 1) - Method (_LPI, 0, NotSerialized) { - Return (\_SB.CLPI) - } =20 Device (CP01) { // Neoverse N2 core 1 Name (_HID, "ACPI0007") @@ -199,9 +171,6 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", = "ARMSGI", Device (CL02) { // Cluster 2 Name (_HID, "ACPI0010") Name (_UID, 2) - Method (_LPI, 0, NotSerialized) { - Return (\_SB.CLPI) - } =20 Device (CP02) { // Neoverse N2 core 2 Name (_HID, "ACPI0007") @@ -226,9 +195,6 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", = "ARMSGI", Device (CL03) { // Cluster 3 Name (_HID, "ACPI0010") Name (_UID, 3) - Method (_LPI, 0, NotSerialized) { - Return (\_SB.CLPI) - } =20 Device (CP03) { // Neoverse N2 core 3 Name (_HID, "ACPI0007") @@ -253,9 +219,6 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", = "ARMSGI", Device (CL04) { // Cluster 4 Name (_HID, "ACPI0010") Name (_UID, 4) - Method (_LPI, 0, NotSerialized) { - Return (\_SB.CLPI) - } =20 Device (CP04) { // Neoverse N2 core 4 Name (_HID, "ACPI0007") @@ -280,9 +243,6 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", = "ARMSGI", Device (CL05) { // Cluster 5 Name (_HID, "ACPI0010") Name (_UID, 5) - Method (_LPI, 0, NotSerialized) { - Return (\_SB.CLPI) - } =20 Device (CP05) { // Neoverse N2 core 5 Name (_HID, "ACPI0007") @@ -307,9 +267,6 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", = "ARMSGI", Device (CL06) { // Cluster 6 Name (_HID, "ACPI0010") Name (_UID, 6) - Method (_LPI, 0, NotSerialized) { - Return (\_SB.CLPI) - } =20 Device (CP06) { // Neoverse N2 core 6 Name (_HID, "ACPI0007") @@ -334,9 +291,6 @@ DefinitionBlock ("DsdtTable.aml", "DSDT", 2, "ARMLTD", = "ARMSGI", Device (CL07) { // Cluster 7 Name (_HID, "ACPI0010") Name (_UID, 7) - Method (_LPI, 0, NotSerialized) { - Return (\_SB.CLPI) - } =20 Device (CP07) { // Neoverse N2 core 7 Name (_HID, "ACPI0007") --=20 2.25.1 -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Groups.io Links: You receive all messages sent to this group. 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