ACPI: tables: introduce support for FPDT table

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ACPI Firmware Performance Data Table (FPDT) provides information about
firmware performance during system boot, S3 suspend and S3 resume.

Have the kernel parse the FPDT table, and expose the firmware
performance data to userspace as sysfs attributes under
/sys/firmware/acpi/fpdt/.

Tested-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Zhang Rui 2021-01-29 14:15:48 +08:00 • committed by Rafael J. Wysocki

parent 6ee1d745b7

commit d1eb86e59b

4 changed files with 316 additions and 0 deletions

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43

Documentation/ABI/testing/sysfs-firmware-acpi

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8

drivers/acpi/Kconfig

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1

drivers/acpi/Makefile

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264

drivers/acpi/acpi_fpdt.c

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