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Track context active (on hardware) status together with the start timestamp. This will be used to provide better granularity of context runtime reporting in conjunction with already tracked pphwsp accumulated runtime. The latter is only updated on context save so does not give us visibility to any currently executing work. As part of the patch the existing runtime tracking data is moved under the new ce->stats member and updated under the seqlock. This provides the ability to atomically read out accumulated plus active runtime. v2: * Rename and make __intel_context_get_active_time unlocked. v3: * Use GRAPHICS_VER. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Aravind Iddamsetty <aravind.iddamsetty@intel.com> # v1 Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220401142205.3123159-6-tvrtko.ursulin@linux.intel.com
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 Restructured Text 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.