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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Dec 2024 10:38:38.1609 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 9bb66a71-3ba5-4c25-bf80-08dd20e276aa X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: AM3PEPF0000A798.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: GV1PR08MB11075 Hi Mike. > Notably missing is the same changes for the etm3x driver. The ETMv3.x > and PTM1.x are supported by this driver, and these trace source > variants are also supported in perf in the cs_etm.c code. But I wonder etmv3 needs to change. Because its spinlock is used only via sysfs enable/disable path. So, I think it doesn't need to change the lock type. > STM is also missing, though this is not directly enabled via perf - > but could perhaps run concurrently as it can be a target output for > ftrace. Actually, I couldn't find out the path where the STM's lock could be grabbed under other raw_spin_lock (including csdev) If you don't mind would you let me the code path please? Thanks > -- > Mike Leach > Principal Engineer, ARM Ltd. > Manchester Design Centre. UK