From patchwork Mon Feb 10 21:12:20 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Luck, Tony" X-Patchwork-Id: 864539 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) (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 2082124C695; Mon, 10 Feb 2025 21:12:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.15 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739221955; cv=none; b=ryYXXunlZSL7h3k2TojZud+NGtmJyTtI91tsW7lVbAYoa9gZ0VaMvPd9O9CrN1EfyOC4qv61gpCTBHv1hfcHbwXvQC4J8hkrIaJBQ+vaGOqKGvxUCS/4tB6k1UjDrpgngZqaldjxnSfDijN+QxCn/OPRQBxq6PmkzewD2MSx1tY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739221955; c=relaxed/simple; bh=aJAmjDnrPg2HWKPCN+W545IuNK6kBBz+2H4Vz/bwqpE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=eso/laQIUxUBwpw7WZHjqCSS1Z7JS6fqmT/xcag0lAXsvEBTiDMOYNDZP2fpqzBFM8lmynV0o47M5DF2HBPWNCsHXthHSfhHAetp8xd4dma2n7pkfaCSgHEOG7qXpyCnvHay2oc/46rZ4uJZMhcnZJv9ziGpeNMX7vxup8vSozA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=k11DC9S2; arc=none smtp.client-ip=192.198.163.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="k11DC9S2" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1739221954; x=1770757954; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=aJAmjDnrPg2HWKPCN+W545IuNK6kBBz+2H4Vz/bwqpE=; b=k11DC9S2LWcXxYMhMpDaEJ5TdPqGGev34znlRfqCI2wobnaMZbj5kqGu mDGvm7jMkQjIU45VJFkJmZx9S7bXcfVEW1C/GndzAnGtpnk9X5su/e6qb z8XF/LjnJSLQvKdiJ7Mv/IB7jKqdDPnizDcmOtCRTVHB7Ye2cUUAJSrOf hS38dfr5MOQJSxVRt2rJMhSRtL9o3S4PF1wXKxQ531xQMdc5h+yDZrFil ruwP6dAhjvTB1Q2lFtoM7LYvvXn7MI7H4pO49DQrzJ0ryXTsnglGn3CF6 yETBMlrdK9L5bU4sTGBD1OVBXpbeiH7WmK+SvU8gXpCFeUj3ZFOGxeJ7I Q==; X-CSE-ConnectionGUID: 0kzXfoSHQJiZz7sCHxhHvg== X-CSE-MsgGUID: gvc/2KhMSPSyWqz6fD3FFQ== X-IronPort-AV: E=McAfee;i="6700,10204,11341"; a="39969738" X-IronPort-AV: E=Sophos;i="6.13,275,1732608000"; d="scan'208";a="39969738" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Feb 2025 13:12:31 -0800 X-CSE-ConnectionGUID: UWzPXJeEQs+KHVpefmiK9g== X-CSE-MsgGUID: MXIaOGq1Se2SpcNwO9ZK+w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,224,1728975600"; d="scan'208";a="116393880" Received: from agluck-desk3.sc.intel.com ([172.25.222.70]) by fmviesa003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Feb 2025 13:12:30 -0800 From: Tony Luck To: Robert Moore , "Rafael J. Wysocki" , Len Brown Cc: linux-acpi@vger.kernel.org, acpica-devel@lists.linux.dev, Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , David Hildenbrand , Oscar Salvador , Greg Kroah-Hartman , Danilo Krummrich , Andrew Morton , linux-kernel@vger.kernel.org, Fenghua Yu , Tony Luck Subject: [PATCH 1/4] ACPICA: Define MRRM ACPI table Date: Mon, 10 Feb 2025 13:12:20 -0800 Message-ID: <20250210211223.6139-2-tony.luck@intel.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250210211223.6139-1-tony.luck@intel.com> References: <20250210211223.6139-1-tony.luck@intel.com> Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Fenghua Yu The MRRM table describes association between physical address ranges and "region numbers". This is used by: 1) The /sys/fs/resctrl filesystem to report memory traffic per-RMID for each region. 2) Perf subsystem to report memory related uncore events per region. Structure defined in the Intel Resource Director Technology (RDT) Architecture specification downloadable from www.intel.com/sdm Signed-off-by: Fenghua Yu Signed-off-by: Tony Luck --- include/acpi/actbl3.h | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) diff --git a/include/acpi/actbl3.h b/include/acpi/actbl3.h index 5cd755143b7d..1b9a03ff73ba 100644 --- a/include/acpi/actbl3.h +++ b/include/acpi/actbl3.h @@ -42,6 +42,7 @@ #define ACPI_SIG_WSMT "WSMT" /* Windows SMM Security Mitigations Table */ #define ACPI_SIG_XENV "XENV" /* Xen Environment table */ #define ACPI_SIG_XXXX "XXXX" /* Intermediate AML header for ASL/ASL+ converter */ +#define ACPI_SIG_MRRM "MRRM" /* Memory Range and Region Mapping table */ /* * All tables must be byte-packed to match the ACPI specification, since @@ -793,6 +794,45 @@ struct acpi_table_xenv { u8 event_flags; }; +/******************************************************************************* + * + * MRRM - Memory Range and Region Mapping (MRRM) table + * + ******************************************************************************/ + +struct acpi_table_mrrm { + struct acpi_table_header header; + u8 max_mem_region; /* Max Memory Regions supported */ + u8 flags; /* Region assignment type */ + u8 reserved[26]; + /* Memory range entry array */ +}; +#define ACPI_MRRM_FLAGS_REGION_ASSIGNMENT_OS (1<<0) + +/******************************************************************************* + * + * Memory Range entry - Memory Range entry in MRRM table + * + ******************************************************************************/ + +struct acpi_table_mrrm_mem_range_entry { + u16 type; /* Type 0="MRRM" */ + u16 length; /* 32B + sizeof(Region-ID Programming Reg[]) */ + u32 reserved; /* Reserved */ + u32 base_addr_low; /* Low 32 bits of base addr of the mem range */ + u32 base_addr_high; /* High 32 bits of base addr of the mem range */ + u32 len_low; /* Low 32 bits of length of the mem range */ + u32 len_high; /* High 32 bits of length of the mem range */ + u16 region_id_flags; /* Valid local or remote Region-ID */ + u8 local_region_id; /* Platform-assigned static local Region-ID */ + u8 remote_region_id; /* Platform-assigned static remote Region-ID */ + u32 reserved1; /* Reserved */ + /* Region-ID Programming Registers[] */ +}; + +#define ACPI_MRRM_VALID_REGION_ID_FLAGS_LOCAL (1<<0) +#define ACPI_MRRM_VALID_REGION_ID_FLAGS_REMOTE (1<<1) + /* Reset to default packing */ #pragma pack()