What: /sys/kernel/debug/tpmi-/pfs_dump Date: November 2023 KernelVersion: 6.6 Contact: srinivas.pandruvada@linux.intel.com Description: The PFS (PM Feature Structure) table, shows details of each power management feature. This includes: tpmi_id, number of entries, entry size, offset, vsec offset, lock status and disabled status. Users: Debugging, any user space test suite What: /sys/kernel/debug/tpmi-/tpmi-id-/mem_dump Date: November 2023 KernelVersion: 6.6 Contact: srinivas.pandruvada@linux.intel.com Description: Shows the memory dump of the MMIO region for a TPMI ID. Users: Debugging, any user space test suite What: /sys/kernel/debug/tpmi-/tpmi-id-/mem_write Date: November 2023 KernelVersion: 6.6 Contact: srinivas.pandruvada@linux.intel.com Description: Allows to write at any offset. It doesn't check for Read/Write access as hardware will not allow to write at read-only memory. This write is at offset multiples of 4. The format is instance,offset,contents. Example: echo 0,0x20,0xff > mem_write echo 1,64,64 > mem_write Users: Debugging, any user space test suite What: /sys/kernel/debug/tpmi-/plr/domain/status Date: Aug 2024 KernelVersion: 6.11 Contact: Tero Kristo Description: Shows the currently active Performance Limit Reasons for die level and the individual CPUs under the die. The contents of this file are sticky, and clearing all the statuses can be done by writing "0\n" to this file.