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authorZhang Rui <rui.zhang@intel.com>2021-01-29 14:15:48 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2021-01-29 19:24:13 +0100
commitd1eb86e59be09c12447fcb959783cbc70a9bec01 (patch)
treece7abd0ed6b707482ad6ecebc650319e1e2c697e /drivers/acpi/Kconfig
parent6ee1d745b7c9fd573fba142a2efdad76a9f1cb04 (diff)
downloadlinux-d1eb86e59be09c12447fcb959783cbc70a9bec01.tar.gz
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/Kconfig8
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