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client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by BL02EPF00021F68.mail.protection.outlook.com (10.167.249.4) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8466.11 via Frontend Transport; Tue, 18 Feb 2025 13:25:20 +0000 Received: from rric.localdomain (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Tue, 18 Feb 2025 07:25:17 -0600 From: Robert Richter To: Alison Schofield , Vishal Verma , Ira Weiny , Dan Williams , Jonathan Cameron , Dave Jiang , Davidlohr Bueso CC: , , Gregory Price , "Fabio M. De Francesco" , Terry Bowman , Robert Richter Subject: [PATCH v2 13/15] cxl/x86: Prepare for architectural platform setup Date: Tue, 18 Feb 2025 14:23:54 +0100 Message-ID: <20250218132356.1809075-14-rrichter@amd.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250218132356.1809075-1-rrichter@amd.com> References: <20250218132356.1809075-1-rrichter@amd.com> Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF00021F68:EE_|CH3PR12MB9432:EE_ X-MS-Office365-Filtering-Correlation-Id: a9632fd2-e973-402a-977c-08dd501fb112 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|82310400026|7416014|36860700013|1800799024; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(376014)(82310400026)(7416014)(36860700013)(1800799024);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Feb 2025 13:25:20.1159 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a9632fd2-e973-402a-977c-08dd501fb112 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BL02EPF00021F68.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR12MB9432 In preparation of an architectural, vendor and platform specific port setup, add a function arch_cxl_port_platform_setup() that can be used to handle and implement architecture and platform specific code. Signed-off-by: Robert Richter Reviewed-by: Gregory Price --- drivers/cxl/core/Makefile | 2 ++ drivers/cxl/core/core.h | 1 + drivers/cxl/core/port.c | 4 ++++ drivers/cxl/core/x86/common.c | 12 ++++++++++++ 4 files changed, 19 insertions(+) create mode 100644 drivers/cxl/core/x86/common.c diff --git a/drivers/cxl/core/Makefile b/drivers/cxl/core/Makefile index 9259bcc6773c..db1d16d39037 100644 --- a/drivers/cxl/core/Makefile +++ b/drivers/cxl/core/Makefile @@ -16,3 +16,5 @@ cxl_core-y += pmu.o cxl_core-y += cdat.o cxl_core-$(CONFIG_TRACING) += trace.o cxl_core-$(CONFIG_CXL_REGION) += region.o + +cxl_core-$(CONFIG_X86) += x86/common.o diff --git a/drivers/cxl/core/core.h b/drivers/cxl/core/core.h index a20ea2b7d1a4..e2955f91fd98 100644 --- a/drivers/cxl/core/core.h +++ b/drivers/cxl/core/core.h @@ -118,5 +118,6 @@ int cxl_port_get_switch_dport_bandwidth(struct cxl_port *port, struct access_coordinate *c); int cxl_gpf_port_setup(struct device *dport_dev, struct cxl_port *port); +void arch_cxl_port_platform_setup(struct cxl_port *port); #endif /* __CXL_CORE_H__ */ diff --git a/drivers/cxl/core/port.c b/drivers/cxl/core/port.c index d19930c009ce..e94671ea8455 100644 --- a/drivers/cxl/core/port.c +++ b/drivers/cxl/core/port.c @@ -841,6 +841,8 @@ static void cxl_debugfs_create_dport_dir(struct cxl_dport *dport) &cxl_einj_inject_fops); } +void __weak arch_cxl_port_platform_setup(struct cxl_port *port) { } + static int cxl_port_add(struct cxl_port *port, resource_size_t component_reg_phys, struct cxl_dport *parent_dport) @@ -878,6 +880,8 @@ static int cxl_port_add(struct cxl_port *port, return rc; } + arch_cxl_port_platform_setup(port); + rc = device_add(dev); if (rc) return rc; diff --git a/drivers/cxl/core/x86/common.c b/drivers/cxl/core/x86/common.c new file mode 100644 index 000000000000..eeb9bdadb26d --- /dev/null +++ b/drivers/cxl/core/x86/common.c @@ -0,0 +1,12 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2025 Advanced Micro Devices, Inc. + */ + +#include + +#include "../core.h" + +void arch_cxl_port_platform_setup(struct cxl_port *port) +{ +}