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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>
32 lines
1.1 KiB
Plaintext
32 lines
1.1 KiB
Plaintext
What: /sys/kernel/debug/tpmi-<n>/pfs_dump
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Date: November 2023
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KernelVersion: 6.6
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Contact: srinivas.pandruvada@linux.intel.com
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Description:
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The PFS (PM Feature Structure) table, shows details of each power
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management feature. This includes:
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tpmi_id, number of entries, entry size, offset, vsec offset, lock status
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and disabled status.
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Users: Debugging, any user space test suite
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What: /sys/kernel/debug/tpmi-<n>/tpmi-id-<n>/mem_dump
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Date: November 2023
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KernelVersion: 6.6
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Contact: srinivas.pandruvada@linux.intel.com
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Description:
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Shows the memory dump of the MMIO region for a TPMI ID.
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Users: Debugging, any user space test suite
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What: /sys/kernel/debug/tpmi-<n>/tpmi-id-<n>/mem_write
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Date: November 2023
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KernelVersion: 6.6
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Contact: srinivas.pandruvada@linux.intel.com
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Description:
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Allows to write at any offset. It doesn't check for Read/Write access
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as hardware will not allow to write at read-only memory. This write is
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at offset multiples of 4. The format is instance,offset,contents.
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Example:
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echo 0,0x20,0xff > mem_write
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echo 1,64,64 > mem_write
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Users: Debugging, any user space test suite
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