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| author |   Zhang Rui <rui.zhang@intel.com> | 2021-01-29 14:15:48 +0800 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-01-29 19:24:13 +0100 |
| commit | d1eb86e59be09c12447fcb959783cbc70a9bec01 (patch) | |
| tree | ce7abd0ed6b707482ad6ecebc650319e1e2c697e /drivers/acpi/Kconfig | |
| parent | Linux 5.11-rc5 (diff) | |
| download | linux-dev-d1eb86e59be09c12447fcb959783cbc70a9bec01.tar.xz linux-dev-d1eb86e59be09c12447fcb959783cbc70a9bec01.zip | |
ACPI: tables: introduce support for FPDT table
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>
Diffstat (limited to 'drivers/acpi/Kconfig')
| -rw-r--r-- | drivers/acpi/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index ebcf534514be..cdfe5c75aa53 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -87,6 +87,14 @@ config ACPI_SPCR_TABLE This table provides information about the configuration of the earlycon console. +config ACPI_FPDT + bool "ACPI Firmware Performance Data Table (FPDT) support" + depends on X86_64 + help + Enable support for the Firmware Performance Data Table (FPDT). + This table provides information on the timing of the system + boot, S3 suspend and S3 resume firmware code paths. + config ACPI_LPIT bool depends on X86_64 |