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897286f294
Provide a PMU interface for GT C6 residency counters. The interface is similar to the one available for i915, but gt is passed in the config when creating the event. Sample usage and output: $ perf list | grep gt-c6 xe_0000_00_02.0/gt-c6-residency/ [Kernel PMU event] $ tail /sys/bus/event_source/devices/xe_0000_00_02.0/events/gt-c6-residency* ==> /sys/bus/event_source/devices/xe_0000_00_02.0/events/gt-c6-residency <== event=0x01 ==> /sys/bus/event_source/devices/xe_0000_00_02.0/events/gt-c6-residency.unit <== ms $ perf stat -e xe_0000_00_02.0/gt-c6-residency,gt=0/ -I1000 # time counts unit events 1.001196056 1,001 ms xe_0000_00_02.0/gt-c6-residency,gt=0/ 2.005216219 1,003 ms xe_0000_00_02.0/gt-c6-residency,gt=0/ Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Riana Tauro <riana.tauro@intel.com> Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20250124050411.2189060-6-lucas.demarchi@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.