13fb0c9872
For Xe_HP platforms that can have multiple CCS engines, the presence/absence of each CCS is inferred by the presence/absence of any DSS in the corresponding quadrant of the GT's DSS mask. This handling is only needed on platforms that can have more than one CCS. The CCS is never fused off on platforms like MTL that can only have one. v2: - Add extra warnings to try to catch mistakes where the register counts in get_num_dss_regs() are updated without corresponding updates to the register parameters passed to load_dss_mask(). (Lucas) - Add kerneldoc for xe_gt_topology_has_dss_in_quadrant() and clarify why we care about quadrants of the DSS space. (Lucas) - Ensure CCS engine counting treats engine mask as 64-bit. (Lucas) Cc: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://lore.kernel.org/r/20230309005530.3140173-2-matthew.d.roper@intel.com Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@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.