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f9be30003f
The engine hw_id is only used by RING_FAULT_REG(), which is not used
by GRAPHICS_VER >= 8. We did use hw_id on recent platforms to set
the engine's guc_id, but that is not the case anymore since
commit c784e5249e ("drm/i915/guc: Update to use firmware v49.0.1"):
now we only use class and id information to generate guc_id.
We tend to keep adding new defines just to be consistent, but let's try
to remove them and let them defined to 0 for engines that only exist on
gen8+ platforms.
v2: Reword commit message and add information about when we stopped
using hw_id (Matt Roper)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210720232014.3302645-3-lucas.demarchi@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.