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e053163660
The DG2 forcewake table is very similar to the one used by XeHP SDV (and both platforms are even presented as a single table in the bspec). For the most part DG2 starts using a few additional ranges that were 'reserved' on XeHP SDV and stops using some others. However there is a single range (0xd800-0xd87f) that needs to be handled differently between the two platforms (it needs GT wake on XeHP SDV, but render wake on DG2) so unless we want to wake both domains (which could waste power) or define new types of forcewake domains for this special case we need to have separate tables for the two platforms. Let's define the ranges for both platforms with a parameterized macro so that we don't actually need to duplicate everything in the code. It should be fine for DG2 to re-use the Xe_HP shadow register list so we can continue to use the 'xehpsdv' MMIO write functions and don't need to spin up a separate DG2 instance. Bspec: 66534 Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210729170008.2836648-4-matthew.d.roper@intel.com |
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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.