From patchwork Tue Dec 10 10:36:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yuquan Wang X-Patchwork-Id: 13901217 Received: from zg8tmja5ljk3lje4ms43mwaa.icoremail.net (zg8tmja5ljk3lje4ms43mwaa.icoremail.net [209.97.181.73]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 2D6C223DE8D for ; Tue, 10 Dec 2024 10:37:01 +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=1733827028; cv=none; b=i33Agpah+6Az71TaFZlHQqSnMNHuMfOFEu/EtfooEelpnPTW4gwWZ5fQ055vKcPZrRo4W8MOZQZiheHfLII+89REWHCIJFdwxWmxrfkf/lJod/CyNVYe2BkHcMIQOAL9+aEbUL0OO7sBABLxqTpC3sMRC0b4Mj3fUj5ppZtqaHM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733827028; c=relaxed/simple; bh=qKO/wNbcZohvFcXpqAuxndHnWcVy8icZ86XAGfqOL5o=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=UC0zLEczV5HKezK1l0aWycvWSUXJ/w0kB/hiO3CtA/2rXZvJe/ZF+YcxmTGkNu31fLMmQEUjbnK5sGd77zDIK8BSt+9J/pOyNiCEhzjgmITOgea+iXGuZ3ruc5VlXXjyPnKhT3rEnlfU4nq1FEiOvVSnnUlt/nW3Xabugi+Gew4= 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-7 (Coremail) with SMTP id AQAAfwC3vh7CGVhnsvSwCg--.17570S2; Tue, 10 Dec 2024 18:36:50 +0800 (CST) Received: from phytium.com.cn (unknown [218.76.62.144]) by mail (Coremail) with SMTP id AQAAfwCX6na4GVhn1pdmAA--.2065S3; Tue, 10 Dec 2024 18:36:41 +0800 (CST) From: Yuquan Wang To: marcin.juszkiewicz@linaro.org, ardb+tianocore@kernel.org, quic_llindhol@quicinc.com Cc: Jonathan.Cameron@Huawei.com, chenbaozi@phytium.com.cn, devel@edk2.groups.io, linux-cxl@vger.kernel.org, Yuquan Wang Subject: [RFC PATCH edk2-platforms v4 0/1] add basic support for CXL on sbsa-ref Date: Tue, 10 Dec 2024 18:36:31 +0800 Message-Id: <20241210103632.95960-1-wangyuquan1236@phytium.com.cn> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: AQAAfwCX6na4GVhn1pdmAA--.2065S3 X-CM-SenderInfo: 5zdqw5pxtxt0arstlqxsk13x1xpou0fpof0/1tbiAQAPAWdXSfIEdwABs2 Authentication-Results: hzbj-icmmx-7; spf=neutral smtp.mail=wangyuquan 1236@phytium.com.cn; X-Coremail-Antispam: 1Uk129KBjvJXoW3Ar1kWF4DCw1UWr4UtFyUtrb_yoW3Zr45pF 1UtFs0gr4kA347Cr4xCF17Aw13u34SyF4UJr9rJryj9F15Xw15XrZ5JryjgryUAr4kGr1j qFnrtw10q348GaUanT9S1TB71UUUUUJqnTZGkaVYY2UrUUUUj1kv1TuYvTs0mT0YCTnIWj DUYxn0WfASr-VFAU7a7-sFnT9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUU UUUUU v3 -> v4: - Align base addresses of CXL relevant Windows v2 -> v3: - PCDs values of pio, mmio32, mmio64 & ecam space for the independent cxl host - CXL Bus range: 0x00 ~ 0xff - Mcfg ecam structure for cxl - Iort RC node for cxl RFC because - Many contents are ported from Jonathan' patch on qemu virt design - Bring plenty of PCDs values - Less experience and not particularly confident in ACPI area This series leverages Jonathan's patches[1] to add acpi0016 & acpi0017 objects into the previous DSDT table of sbsa-ref. Since my latest acpi0016 implementation model on qemu side is a new host bridge qemu object rather than pxb-cxl, the cxl host(Segment 0001) would have its own ECAM sapce. Meanwhile, this adds exclusive pio, mmio32 & mmio64 space for cxl host. As sbsa-ref cxl host has its own ecam space, this defines the bus range of cxl host from 0x0 to 0xff. Therefore, this adds relevant BASE_ADDRESS_ALLOCATION_STRUCTURE for cxl in Mcfg. And to enable msi of cxl components, this add a new RC node in Iort. Based on the new CEDT definitions patch on edk2[2], this series adds a static Cedt.aslc to support the [SBSA_CXL_CHBCR] & [SBSA_CXL_FIXED_WINDOW] space on sbsa-ref. Link: [1]: https://lore.kernel.org/linux-cxl/20220616141950.23374-2-Jonathan.Cameron@huawei.com/ [2]: https://edk2.groups.io/g/devel/message/120851 Below are the new result of acpi tables (the DSDT contents could see the patch itself): 1) MCFG [000h 0000 004h] Signature : "MCFG" [Memory Mapped Configuration Table] [004h 0004 004h] Table Length : 0000004C [008h 0008 001h] Revision : 01 [009h 0009 001h] Checksum : 1E [00Ah 0010 006h] Oem ID : "LINARO" [010h 0016 008h] Oem Table ID : "SBSAQEMU" [018h 0024 004h] Oem Revision : 20240625 [01Ch 0028 004h] Asl Compiler ID : "LNRO" [020h 0032 004h] Asl Compiler Revision : 00000001 [024h 0036 008h] Reserved : 0000000000000000 [02Ch 0044 008h] Base Address : 00000000F0000000 [034h 0052 002h] Segment Group Number : 0000 [036h 0054 001h] Start Bus Number : 00 [037h 0055 001h] End Bus Number : FF [038h 0056 004h] Reserved : 00000000 [03Ch 0060 008h] Base Address : 0000000068500000 [044h 0068 002h] Segment Group Number : 0001 [046h 0070 001h] Start Bus Number : 00 [047h 0071 001h] End Bus Number : FF [048h 0072 004h] Reserved : 00000000 2) IORT [000h 0000 004h] Signature : "IORT" [IO Remapping Table] [004h 0004 004h] Table Length : 00000118 [008h 0008 001h] Revision : 06 [009h 0009 001h] Checksum : D3 [00Ah 0010 006h] Oem ID : "LINARO" [010h 0016 008h] Oem Table ID : "SBSAQEMU" [018h 0024 004h] Oem Revision : 20240625 [01Ch 0028 004h] Asl Compiler ID : "LNRO" [020h 0032 004h] Asl Compiler Revision : 00000001 [024h 0036 004h] Node Count : 00000004 [028h 0040 004h] Node Offset : 00000030 [02Ch 0044 004h] Reserved : 00000000 [030h 0048 001h] Type : 00 [031h 0049 002h] Length : 0018 [033h 0051 001h] Revision : 00 [034h 0052 004h] Identifier : 00000000 [038h 0056 004h] Mapping Count : 00000000 [03Ch 0060 004h] Mapping Offset : 00000000 [040h 0064 004h] ItsCount : 00000001 [044h 0068 004h] Identifiers : 00000000 [048h 0072 001h] Type : 04 [049h 0073 002h] Length : 0058 [04Bh 0075 001h] Revision : 05 [04Ch 0076 004h] Identifier : 00000000 [050h 0080 004h] Mapping Count : 00000001 [054h 0084 004h] Mapping Offset : 00000044 [058h 0088 008h] Base Address : 0000000060050000 [060h 0096 004h] Flags (decoded below) : 00000001 COHACC Override : 1 HTTU Override : 0 Proximity Domain Valid : 0 DeviceID Valid : 0 [064h 0100 004h] Reserved : 00000000 [068h 0104 008h] VATOS Address : 0000000000000000 [070h 0112 004h] Model : 00000000 [074h 0116 004h] Event GSIV : 0000004A [078h 0120 004h] PRI GSIV : 0000004B [07Ch 0124 004h] GERR GSIV : 0000004D [080h 0128 004h] Sync GSIV : 0000004C [084h 0132 004h] Proximity Domain : 00000000 [088h 0136 004h] Device ID Mapping Index : 00000001 [08Ch 0140 004h] Input base : 00000000 [090h 0144 004h] ID Count : 0000FFFF [094h 0148 004h] Output Base : 00000000 [098h 0152 004h] Output Reference : 00000030 [09Ch 0156 004h] Flags (decoded below) : 00000000 Single Mapping : 0 [0A0h 0160 001h] Type : 02 [0A1h 0161 002h] Length : 003C [0A3h 0163 001h] Revision : 00 [0A4h 0164 004h] Identifier : 00000000 [0A8h 0168 004h] Mapping Count : 00000001 [0ACh 0172 004h] Mapping Offset : 00000028 [0B0h 0176 008h] Memory Properties : [IORT Memory Access Properties] [0B0h 0176 004h] Cache Coherency : 00000001 [0B4h 0180 001h] Hints (decoded below) : 00 Transient : 0 Write Allocate : 0 Read Allocate : 0 Override : 0 [0B5h 0181 002h] Reserved : 0000 [0B7h 0183 001h] Memory Flags (decoded below) : 01 Coherency : 1 Device Attribute : 0 Ensured Coherency of Accesses : 0 [0B8h 0184 004h] ATS Attribute : 00000000 [0BCh 0188 004h] PCI Segment Number : 00000000 [0C0h 0192 001h] Memory Size Limit : 00 [0C1h 0193 002h] PASID Capabilities : 0000 [0C3h 0195 001h] Reserved : 00 [0C8h 0200 004h] Input base : 00000000 [0CCh 0204 004h] ID Count : 0000FFFF [0D0h 0208 004h] Output Base : 00000000 [0D4h 0212 004h] Output Reference : 00000048 [0D8h 0216 004h] Flags (decoded below) : 00000000 Single Mapping : 0 [0DCh 0220 001h] Type : 02 [0DDh 0221 002h] Length : 003C [0DFh 0223 001h] Revision : 00 [0E0h 0224 004h] Identifier : 00000001 [0E4h 0228 004h] Mapping Count : 00000001 [0E8h 0232 004h] Mapping Offset : 00000028 [0ECh 0236 008h] Memory Properties : [IORT Memory Access Properties] [0ECh 0236 004h] Cache Coherency : 00000001 [0F0h 0240 001h] Hints (decoded below) : 00 Transient : 0 Write Allocate : 0 Read Allocate : 0 Override : 0 [0F1h 0241 002h] Reserved : 0000 [0F3h 0243 001h] Memory Flags (decoded below) : 01 Coherency : 1 Device Attribute : 0 Ensured Coherency of Accesses : 0 [0F4h 0244 004h] ATS Attribute : 00000000 [0F8h 0248 004h] PCI Segment Number : 00000001 [0FCh 0252 001h] Memory Size Limit : 00 [0FDh 0253 002h] PASID Capabilities : 0000 [0FFh 0255 001h] Reserved : 00 [104h 0260 004h] Input base : 00000000 [108h 0264 004h] ID Count : 0000FFFF [10Ch 0268 004h] Output Base : 00010000 [110h 0272 004h] Output Reference : 00000030 [114h 0276 004h] Flags (decoded below) : 00000000 Single Mapping : 0 3) CEDT [000h 0000 004h] Signature : "CEDT" [CXL Early Discovery Table] [004h 0004 004h] Table Length : 000000A8 [008h 0008 001h] Revision : 01 [009h 0009 001h] Checksum : 42 [00Ah 0010 006h] Oem ID : "LINARO" [010h 0016 008h] Oem Table ID : "SBSAQEMU" [018h 0024 004h] Oem Revision : 20240625 [01Ch 0028 004h] Asl Compiler ID : "LNRO" [020h 0032 004h] Asl Compiler Revision : 00000001 [024h 0036 001h] Subtable Type : 00 [CXL Host Bridge Structure] [025h 0037 001h] Reserved : 00 [026h 0038 002h] Length : 0020 [028h 0040 004h] Associated host bridge : 00000001 [02Ch 0044 004h] Specification version : 00000001 [030h 0048 004h] Reserved : 00000000 [034h 0052 008h] Register base : 0000000060200000 [03Ch 0060 008h] Register length : 0000000000010000 [044h 0068 001h] Subtable Type : 01 [CXL Fixed Memory Window Structure] [045h 0069 001h] Reserved : 00 [046h 0070 002h] Length : 0064 [048h 0072 004h] Reserved : 00000000 [04Ch 0076 008h] Window base address : 00000A0000000000 [054h 0084 008h] Window size : 0000010000000000 [05Ch 0092 001h] Interleave Members : 00 [05Dh 0093 001h] Interleave Arithmetic : 00 [05Eh 0094 002h] Reserved : 0000 [060h 0096 004h] Granularity : 00000000 [064h 0100 002h] Restrictions : 000F [066h 0102 002h] QtgId : 0001 [068h 0104 004h] First Target : 00000001 Yuquan Wang (1): SbsaQemu: Support basic CXL enablement Platform/Qemu/SbsaQemu/SbsaQemu.dsc | 21 ++ .../Qemu/SbsaQemu/AcpiTables/AcpiTables.inf | 24 ++ Silicon/Qemu/SbsaQemu/AcpiTables/Cedt.aslc | 69 ++++ Silicon/Qemu/SbsaQemu/AcpiTables/Dsdt.asl | 327 ++++++++++++++++++ Silicon/Qemu/SbsaQemu/AcpiTables/Mcfg.aslc | 9 +- .../Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c | 40 ++- Silicon/Qemu/SbsaQemu/SbsaQemu.dec | 28 ++ 7 files changed, 515 insertions(+), 3 deletions(-) create mode 100644 Silicon/Qemu/SbsaQemu/AcpiTables/Cedt.aslc