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Ville Syrjälä
78c357dd3f
Adjust the EIR clearing to cope with the edge triggered IIR on i965/g4x. To guarantee an edge in the ISR master error bit we temporarily mask everything in EMR. As some of the EIR bits can't even be directly cleared we also borrow a trick from i915_clear_error_registers() and permanently mask any bit that remains high. No real thought given to how we might unmask them again once the cause for the error has been clered. I suppose on pre-g4x GPU reset will reinitialize EMR from scratch. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180611200258.27121-3-ville.syrjala@linux.intel.com Reviewed-by: Imre Deak <imre.deak@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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.