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lf-6.6.y
linux-imx/Documentation/ABI/testing/debugfs-tpmi
Srinivas Pandruvada 40e6c3956b doc: TPMI: Add debugfs documentation 
Describe fields in the TPMI debugfs folder.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230712225950.171326-4-srinivas.pandruvada@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-07-14 15:24:57 +02:00

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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