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Tue, 15 Apr 2025 21:36:07 +0000 Date: Tue, 15 Apr 2025 14:36:03 -0700 From: Alison Schofield To: Robert Richter CC: Vishal Verma , Ira Weiny , Dan Williams , Jonathan Cameron , Dave Jiang , "Davidlohr Bueso" , , , Gregory Price , "Fabio M. De Francesco" , Terry Bowman Subject: Re: [PATCH v4 13/14] cxl: Add a dev_dbg() when a decoder was added to a port Message-ID: References: <20250306164448.3354845-1-rrichter@amd.com> <20250306164448.3354845-14-rrichter@amd.com> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20250306164448.3354845-14-rrichter@amd.com> X-ClientProxiedBy: MW4PR04CA0235.namprd04.prod.outlook.com (2603:10b6:303:87::30) To SA1PR11MB8794.namprd11.prod.outlook.com (2603:10b6:806:46a::5) Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SA1PR11MB8794:EE_|CH0PR11MB5252:EE_ X-MS-Office365-Filtering-Correlation-Id: 2fe3aabe-9684-44b0-9759-08dd7c658828 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|376014|7053199007; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?FFtA4n2BToTPi64KOsr2bxCQ3BeVfoImNNA9Y4El/GIPJ7JerBWUQaRFpXRb?= =?us-ascii?Q?/SqfiO7ymTNLBw9cRjC6T52787H5/RcpPMejn1mY/wAIw9Ou9e5N6SUsZ1bn?= =?us-ascii?Q?/6XJo3Xwo5gC0Tvu07X+2lJdfwSMEm+fEICG1Jyz/YJFZLZhQU9eEVFMKpkF?= =?us-ascii?Q?bD45Ag1yaaNamewbgUAtig20VKE3jnxpiCUMXtSxWX/enFdq64CEHtHGtJu/?= =?us-ascii?Q?gPm8bQw2iKckXIJFitNPHm+vaAKY3ecHrg6WdbF0RfDupoyBIekrb8u95Oxh?= =?us-ascii?Q?gquBK74OenzbvfCeEEtFa0vNnzuFgj8QfzIsfI7gyHDyXsjannf1j/w+DQ+j?= =?us-ascii?Q?DyACPGpJT/w9Hj44DYr+FX76daNlTkvD5DW//LFiIJe6Z98CDixrzYkVeHSI?= =?us-ascii?Q?YBPx2c73Xzz4ByvjK1zfAzYvYjTXrqlcPZke8EAeB7PGtZyA09SOeuqhvQmc?= =?us-ascii?Q?5b25uvMnGu585nLUsBAj8Vxca0SV2OZypmFjGpmUwzGfO0asN9ECAzsY69tU?= =?us-ascii?Q?OzngPjPInqNy+QA+uj4GE54AP1dR0NfBjQZXlXK0I7mbvYoIaRL1PMslTLRk?= =?us-ascii?Q?gb8aFDHrHemd2ZUTQaiDVD4eW2MbY15zIMlVSD7vp6MDSGiFxs6MljU8kYHW?= =?us-ascii?Q?vbLHJqgh1XVKIYby7qXyX3OM+7bOOLIZcLjINZ+yXItA0cm6AHp83sQesoJR?= =?us-ascii?Q?56xXUArOXqI1ZQfDSUe1o1V4vSJbAAxLSyXCgR+HDW/bHV+aIjIG8s6TM7Rx?= =?us-ascii?Q?KCmiJEH4QcXZu6EkJ5JC2w0TYSqUS1ddvTe7bOUIKas1nXxTWl+LHANsBo/Q?= =?us-ascii?Q?0uaC6lVpxEh9Casfsw9rkFZqbr05zB/PqzxLJIxap/JKCUkgRca5LUu1Abj3?= =?us-ascii?Q?BNeKXaDkPXQQabMKjb1UePuORw9Oe3/uUr0kNe4vztvPV7A4V8ILM8a7Vh/M?= =?us-ascii?Q?x41cHMZ5GZhdRVnUo+LJYCrM97OR5LBvDsalaNKTO9x6BGrvuAlW71d934L7?= =?us-ascii?Q?eUaDpab6fbxk3//V9qgdDS9tn4UgGe1JdohBYhM9HNQw/u7SjPKuZhi+UCOI?= =?us-ascii?Q?HEt6K29T83kY8/t6QD+4QT2ATQ0nBtPVutIo5K2vqC7KQ8LLOhTwfxR7keps?= =?us-ascii?Q?WDo5qIhagdhMnCWkoGDs1e7vF/DziNSkWuSJVkX3SHIHttU8fVXofAle5qyJ?= =?us-ascii?Q?dYgB4wquuH/i+fV9wJz9Isy2Qwa99p6NKdatTrwS7RLotlSMHdWtZuLIF2qP?= =?us-ascii?Q?Pqm7syX2OFHdLJOe7Zlh43GEaa8OWGekkLkR1rZ2juPPiX4XBrc/gW5ubqT4?= =?us-ascii?Q?o8Dp661PJc+HE/OSI7+qP0P2eUJYpUiaHNvK2/1ehNzXuq4BO50FtEN610cf?= =?us-ascii?Q?fd+/zCtoVisxsCWqzhtDDI5jg5acQfuu1YHzI9oARvu3p29AzigqegsKsdxw?= =?us-ascii?Q?139Wen7LTdg=3D?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:SA1PR11MB8794.namprd11.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(1800799024)(376014)(7053199007);DIR:OUT;SFP:1101; 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It is especially useful to get the decoder > mapping of the involved CXL host bridge or PCI device. This avoids a > complex lookup of the decoder/port/device mappings in sysfs. > > Example log messages: > > cxl_acpi ACPI0017:00: decoder0.0 added to root0 > cxl_acpi ACPI0017:00: decoder0.1 added to root0 > ... > pci0000:e0: decoder1.0 added to port1 > pci0000:e0: decoder1.1 added to port1 > ... > cxl_mem mem0: decoder5.0 added to endpoint5 > cxl_mem mem0: decoder5.1 added to endpoint5 > > Signed-off-by: Robert Richter > Reviewed-by: Gregory Price > Reviewed-by: Jonathan Cameron > Reviewed-by: Dave Jiang > Tested-by: Gregory Price > --- Reviewed-by: Alison Schofield