a91d1a17cd
Add support for the local memory PICe resizable bar, so that local memory can be resized to the maximum size supported by the device, and mapped correctly to the PCIe memory bar. It is usual that GPU devices expose only 256MB BARs primarily to be compatible with 32-bit systems. So, those devices cannot claim larger memory BAR windows size due to the system BIOS limitation. With this change, it would be possible to reprogram the windows of the bridge directly above the requesting device on the same BAR type. v2:Moved code to gt/intel_region_lmem.c and used only single underscore for function names.(Jani) v3: Optimised code. Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com> Signed-off-by: Michał Winiarski <michal.winiarski@intel.com> Cc: Stuart Summers <stuart.summers@intel.com> Cc: Michael J Ruhl <michael.j.ruhl@intel.com> Cc: Prathap Kumar Valsan <prathap.kumar.valsan@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Priyanka Dandamudi <priyanka.dandamudi@intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Reviewed-by: Nirmoy Das <nirmoy.das@intel.com> Signed-off-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220713130209.2573233-2-priyanka.dandamudi@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.