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6b540bf6f1
Implement multi-lrc submission via a single workqueue entry and single H2G. The workqueue entry contains an updated tail value for each request, of all the contexts in the multi-lrc submission, and updates these values simultaneously. As such, the tasklet and bypass path have been updated to coalesce requests into a single submission. v2: (John Harrison) - s/wqe/wqi - Use FIELD_PREP macros - Add GEM_BUG_ONs ensures length fits within field - Add comment / white space to intel_guc_write_barrier (Kernel test robot) - Make need_tasklet a static function v3: (Docs) - A comment for submission_stall_reason v4: (Kernel test robot) - Initialize return value in bypass tasklt submit function (John Harrison) - Add comment near work queue defs - Add BUILD_BUG_ON to ensure WQ_SIZE is a power of 2 - Update write_barrier comment to talk about work queue v5: (John Harrison) - Fix typo in work queue comment Reviewed-by: John Harrison <John.C.Harrison@Intel.com> Signed-off-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211014172005.27155-13-matthew.brost@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.