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.
Forked from
Alex Deucher / linux
Matt Roper
authored
Although all DSS belong to a single pool on Xe_HP platforms (i.e., they're not organized into slices from a topology point of view), we do still need to pass 'group' and 'instance' targets when steering register accesses to a specific instance of a per-DSS multicast register. The rules for how to determine group and instance IDs (which previously used legacy terms "slice" and "subslice") varies by platform. Some platforms determine steering by gslice membership, some platforms by cslice membership, and future platforms may have other rules. Since looping over each DSS and performing steered unicast register accesses is a relatively common pattern, let's add a dedicated iteration macro to handle this (and replace the platform-specific "instdone" loop we were using previously. This will avoid the calling code needing to figure out the details about how to obtain steering IDs for a specific DSS. Most of the places where we use this new loop are in the GPU errorstate code at the moment, but we do have some additional features coming in the future that will also need to loop over each DSS and steer some register accesses accordingly. Signed-off-by:Matt Roper <matthew.d.roper@intel.com> Reviewed-by:
Matt Atwood <matthew.s.atwood@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220701232006.1016135-1-matthew.d.roper@intel.com
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