From patchwork Tue Nov 26 03:01:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yuquan Wang X-Patchwork-Id: 13885458 Received: from zg8tmja5ljk3lje4ms43mwaa.icoremail.net (zg8tmja5ljk3lje4ms43mwaa.icoremail.net [209.97.181.73]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 18FB127735 for ; Tue, 26 Nov 2024 03:02:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.97.181.73 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732590148; cv=none; b=pOn0aTmIabqtTNSD2ZsBvCOgJivIIGNbHYacoFtlGts8fdbypoGYWz1nAEM2EyetltJjW7GTIAqdBVewY3wC49SNrVBdiRAsq/dFzAEk6rbyQPPgPcvg/xi4x95KsVv9a3fzKB8pO+M2CFksD98CrSiBuW5nOt8NSkyORiTsS7E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732590148; c=relaxed/simple; bh=VCAEU5tQ78gEPaSrT8gWP2Lp6wHcLtKAsPlGQbf+hqc=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=AxIzo41EzMQiHY8WqlyuT2aigC22LIT5a1qvNxCZVT/d05CkRI8c/g1WM1Im0RciJrJ1CBVA7ckeh8+l7L5+1ucaUpJFak0HwWfh/B5TFJK6IhLzsNTYumaQID47vx7ohQDtCKl7BmY9OwjGxgMfUJ8LtS59R1C/0eGz72JwfzI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=phytium.com.cn; spf=pass smtp.mailfrom=phytium.com.cn; arc=none smtp.client-ip=209.97.181.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=phytium.com.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=phytium.com.cn Received: from prodtpl.icoremail.net (unknown [10.12.1.20]) by hzbj-icmmx-6 (Coremail) with SMTP id AQAAfwBXuPE5OkVnybJ9BA--.60072S2; Tue, 26 Nov 2024 11:02:17 +0800 (CST) Received: from phytium.com.cn (unknown [218.76.62.144]) by mail (Coremail) with SMTP id AQAAfwC3DnsqOkVn9vhaAA--.10060S4; Tue, 26 Nov 2024 11:02:07 +0800 (CST) From: Yuquan Wang To: AbdulLateef.Attar@amd.com, gaoliming@byosoft.com.cn, zhiguang.liu@intel.com, michael.d.kinney@intel.com Cc: Jonathan.Cameron@Huawei.com, marcin.juszkiewicz@linaro.org, chenbaozi@phytium.com.cn, devel@edk2.groups.io, linux-cxl@vger.kernel.org, Yuquan Wang Subject: [RFC EDK2 PATCH v4 1/1] MdePkg/IndustryStandard: add definitions for CXL CEDT Date: Tue, 26 Nov 2024 11:01:59 +0800 Message-Id: <20241126030159.72111-2-wangyuquan1236@phytium.com.cn> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241126030159.72111-1-wangyuquan1236@phytium.com.cn> References: <20241126030159.72111-1-wangyuquan1236@phytium.com.cn> Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: AQAAfwC3DnsqOkVn9vhaAA--.10060S4 X-CM-SenderInfo: 5zdqw5pxtxt0arstlqxsk13x1xpou0fpof0/1tbiAQABAWdE1PMBxgAAsC Authentication-Results: hzbj-icmmx-6; spf=neutral smtp.mail=wangyuquan 1236@phytium.com.cn; X-Coremail-Antispam: 1Uk129KBjvJXoWxXFWrtFy3JFWkuFWrCrykZrb_yoW7Jr45pF 4kAayYgayDJFWfuw4Sva15Zr1fAFs7Kw1DGF9xZry3ZFWUtw1kWF4DAr1jqrykAr40k342 grn2q34UuFnrC3DanT9S1TB71UUUUjUqnTZGkaVYY2UrUUUUj1kv1TuYvTs0mT0YCTnIWj DUYxn0WfASr-VFAU7a7-sFnT9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUU UUUUU This adds #defines and struct typedefs for the various structure types in the CXL Early Discovery Table (CEDT). Signed-off-by: Yuquan Wang Reviewed-by: Jonathan Cameron --- MdePkg/Include/IndustryStandard/Cxl20.h | 38 ++++++++++++++++++++ MdePkg/Include/IndustryStandard/Cxl30.h | 46 +++++++++++++++++++++++++ MdePkg/Include/IndustryStandard/Cxl31.h | 45 ++++++++++++++++++++++++ 3 files changed, 129 insertions(+) create mode 100644 MdePkg/Include/IndustryStandard/Cxl31.h diff --git a/MdePkg/Include/IndustryStandard/Cxl20.h b/MdePkg/Include/IndustryStandard/Cxl20.h index 574f78688180..55ad8105a7bc 100755 --- a/MdePkg/Include/IndustryStandard/Cxl20.h +++ b/MdePkg/Include/IndustryStandard/Cxl20.h @@ -14,6 +14,7 @@ #define CXL20_H_ #include +#include // // CXL DVSEC IDs @@ -102,6 +103,15 @@ #define CXL_MEM_DEVICE_MEDIA_STATUS_ERROR 0x2 #define CXL_MEM_DEVICE_MEDIA_STATUS_DISABLED 0x3 +/// +/// "CEDT" CXL Early Discovery Table +/// +#define CXL_EARLY_DISCOVERY_TABLE_SIGNATURE SIGNATURE_32 ('C', 'E', 'D', 'T') + +#define CXL_EARLY_DISCOVERY_TABLE_REVISION_01 0x1 + +#define CEDT_TYPE_CHBS 0x0 + // // Ensure proper structure formats // @@ -458,6 +468,34 @@ typedef union { UINT64 Uint64; } CXL_MEMORY_DEVICE_STATUS_REGISTER; +/// +/// CEDT header +/// +typedef struct { + EFI_ACPI_DESCRIPTION_HEADER Header; +} CXL_EARLY_DISCOVERY_TABLE; + +/// +/// Node header definition shared by all CEDT structure types +/// +typedef struct { + UINT8 Type; + UINT8 Reserved; + UINT16 Length; +} CEDT_STRUCTURE; + +/// +/// Definition for CXL Host Bridge Structure (CHBS) +/// +typedef struct { + CEDT_STRUCTURE Header; + UINT32 Uid; + UINT32 CxlVersion; + UINT32 Reserved; + UINT64 Base; + UINT64 Length; +} CXL_HOST_BRIDGE_STRUCTURE; + #pragma pack() #endif diff --git a/MdePkg/Include/IndustryStandard/Cxl30.h b/MdePkg/Include/IndustryStandard/Cxl30.h index 7a9a6d69405d..63e56aea8254 100644 --- a/MdePkg/Include/IndustryStandard/Cxl30.h +++ b/MdePkg/Include/IndustryStandard/Cxl30.h @@ -45,6 +45,13 @@ #define CXL_HDM_6_WAY_INTERLEAVING 0x9 #define CXL_HDM_12_WAY_INTERLEAVING 0xA +/// +/// "CEDT" CXL Early Discovery Table +/// +#define CEDT_TYPE_CFMWS 0x1 +#define CEDT_TYPE_CXIMS 0x2 +#define CEDT_TYPE_RDPAS 0x3 + // // Ensure proper structure formats // @@ -311,6 +318,45 @@ typedef struct { CXL_3_0_CXL_TIMEOUT_AND_ISOLATION_STATUS TimeoutAndIsolationStatus; } CXL_3_0_CXL_TIMEOUT_AND_ISOLATION_CAPABILITY_STRUCTURE; +/// +/// Definition for CXL Fixed Memory Window Structure (CFMWS) +/// +typedef struct { + CEDT_STRUCTURE Header; + UINT32 Reserved; + UINT64 BaseHpa; + UINT64 WindowSize; + UINT8 InterleaveMembers; + UINT8 InterleaveArithmetic; + UINT16 Reserved1; + UINT32 Granularity; + UINT16 Restrictions; + UINT16 QtgId; + UINT32 TargetList[16]; +} CXL_FIXED_MEMORY_WINDOW_STRUCTURE; + +/// +/// Definition for CXL XOR Interleave Math Structure (CXIMS) +/// +typedef struct { + CEDT_STRUCTURE Header; + UINT16 Reserved; + UINT8 HBIG; + UINT8 NIB; + UINT64 XORMAPLIST[4]; +} CXL_XOR_INTERLEAVE_MATH_STRUCTURE; + +/// +/// Definition for RCEC Downstream Port Association Structure (RDPAS) +/// +typedef struct { + CEDT_STRUCTURE Header; + UINT16 SegmentNumber; + UINT16 Bdf; + UINT8 ProtocolType; + UINT64 BaseAddress; +} RCEC_DOWNSTREAM_PORT_ASSOCIATION_STRUCTURE; + #pragma pack() #endif diff --git a/MdePkg/Include/IndustryStandard/Cxl31.h b/MdePkg/Include/IndustryStandard/Cxl31.h new file mode 100644 index 000000000000..4a62c971b045 --- /dev/null +++ b/MdePkg/Include/IndustryStandard/Cxl31.h @@ -0,0 +1,45 @@ +/** @file + CXL 3.1 definitions + + This file contains the register definitions and firmware interface based + on the Compute Express Link (CXL) Specification Revision 3.1. + + Copyright (c) 2024, Phytium Technology Co Ltd. All rights reserved. + + SPDX-License-Identifier: BSD-2-Clause-Patent + + @par Reference(s): + - Compute Express Link (CXL) Specification Revision 3.1. + (https://computeexpresslink.org/cxl-specification/) + +**/ + +#ifndef CXL31_H_ +#define CXL31_H_ + +#include + +/// +/// "CEDT" CXL Early Discovery Table +/// +#define CXL_EARLY_DISCOVERY_TABLE_REVISION_02 0x2 + +#define CEDT_TYPE_CSDS 0x4 + +// +// Ensure proper structure formats +// +#pragma pack(1) + +/// +/// Definition for CXL System Description Structure (CSDS) +/// +typedef struct { + CEDT_STRUCTURE Header; + UINT16 Capabilities; + UINT16 Reserved; +} CXL_DOWNSTREAM_PORT_ASSOCIATION_STRUCTURE; + +#pragma pack() + +#endif