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Two new tracepoints placed at the call sites where requests are actually passed to the GPU enable userspace to track engine utilisation. These tracepoints are only enabled when the DRM_I915_LOW_LEVEL_TRACEPOINTS Kconfig option is enabled. v2: Fix compilation with !CONFIG_DRM_I915_LOW_LEVEL_TRACEPOINTS. v3: Name global seqno consistently across tracepoints. v4: Remove port info from request out tracepoint. (Chris Wilson) Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.