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authorDapeng Mi <dapeng1.mi@linux.intel.com>2026-09-17 09:52:33 +0800
committerIngo Molnar <mingo@kernel.org>2026-09-22 11:37:46 +0200
commit0102c8c7fdfc4bd700971daff2b94470f4eafae4 (patch)
tree531306c2299f9a269f0a986e29f17ba972180104 /Documentation/ABI/testing/sysfs-pps-gen
downloadlinux-stable-0102c8c7fdfc4bd700971daff2b94470f4eafae4.tar.gz
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perf/x86/intel: Rename DMR offcore_rsp attribute to offmodule_rspgrafted
DMR introduces Offmodule Response events in place of the legacy Offcore Response events, but it still exposes the inherited offcore_rsp PMU attribute for programming the corresponding MSR data. Rename the DMR PMU attribute to offmodule_rsp so the sysfs interface matches the underlying event name and avoids user & tooling confusion. Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://patch.msgid.link/20260917015234.981153-12-dapeng1.mi@linux.intel.com
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+What: /sys/class/pps-gen/
+Date: February 2025
+KernelVersion: 6.13
+Contact: Rodolfo Giometti <giometti@enneenne.com>
+Description:
+ The /sys/class/pps-gen/ directory contains files and
+ directories that provide a unified interface to the PPS
+ generators.
+
+What: /sys/class/pps-gen/pps-genX/
+Date: February 2025
+KernelVersion: 6.13
+Contact: Rodolfo Giometti <giometti@enneenne.com>
+Description:
+ The /sys/class/pps-gen/pps-genX/ directory is related to X-th
+ PPS generator in the system. Each directory contain files to
+ manage and control its PPS generator.
+
+What: /sys/class/pps-gen/pps-genX/enable
+Date: February 2025
+KernelVersion: 6.13
+Contact: Rodolfo Giometti <giometti@enneenne.com>
+Description:
+ This write-only file enables or disables generation of the
+ PPS signal.
+
+What: /sys/class/pps-gen/pps-genX/system
+Date: February 2025
+KernelVersion: 6.13
+Contact: Rodolfo Giometti <giometti@enneenne.com>
+Description:
+ This read-only file returns "1" if the generator takes the
+ timing from the system clock, while it returns "0" if not
+ (i.e. from a peripheral device clock).
+
+What: /sys/class/pps-gen/pps-genX/time
+Date: February 2025
+KernelVersion: 6.13
+Contact: Rodolfo Giometti <giometti@enneenne.com>
+Description:
+ This read-only file contains the current time stored into the
+ generator clock as two integers representing the current time
+ seconds and nanoseconds.