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authorJeremy Linton <jeremy.linton@arm.com>2022-11-09 18:47:20 +0100
committerWill Deacon <will@kernel.org>2022-11-14 19:02:59 +0100
commitc2465f95c4e73af1a6564b00ebc9acc15485edf0 (patch)
tree926b34683c3dfb1ca1f8d3f34a49502ed22096df /Documentation/arm64
parentarm_pmu: acpi: handle allocation failure (diff)
downloadlinux-c2465f95c4e73af1a6564b00ebc9acc15485edf0.tar.xz
linux-c2465f95c4e73af1a6564b00ebc9acc15485edf0.zip
ACPI: Enable FPDT on arm64
FPDT provides some boot timing records useful for analyzing parts of the UEFI boot stack. Given the existing code works on arm64, and allows reading the values without utilizing /dev/mem it seems like a good idea to turn it on. Signed-off-by: Jeremy Linton <jeremy.linton@arm.com> Acked-by: Sudeep Holla <sudeep.holla@arm.com> Link: https://lore.kernel.org/r/20221109174720.203723-1-jeremy.linton@arm.com Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'Documentation/arm64')
-rw-r--r--Documentation/arm64/acpi_object_usage.rst2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/arm64/acpi_object_usage.rst b/Documentation/arm64/acpi_object_usage.rst
index 0609da73970b..484ef9676653 100644
--- a/Documentation/arm64/acpi_object_usage.rst
+++ b/Documentation/arm64/acpi_object_usage.rst
@@ -163,7 +163,7 @@ FPDT Section 5.2.23 (signature == "FPDT")
**Firmware Performance Data Table**
- Optional, not currently supported.
+ Optional, useful for boot performance profiling.
GTDT Section 5.2.24 (signature == "GTDT")