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a0f1f7b4f7
Print the GuC captured error state register list (string names and values) when gpu_coredump_state printout is invoked via the i915 debugfs for flushing the gpu error-state that was captured prior. Since GuC could have reported multiple engine register dumps in a single notification event, parse the captured data (appearing as a stream of structures) to identify each dump as a different 'engine-capture-group-output'. Finally, for each 'engine-capture-group-output' that is found, verify if the engine register dump corresponds to the engine_coredump content that was previously populated by the i915_gpu_coredump function. That function would have copied the context's vma's including the bacth buffer during the G2H-context-reset notification that occurred earlier. Perform this verification check by comparing guc_id, lrca and engine- instance obtained from the 'engine-capture-group-output' vs a copy of that same info taken during i915_gpu_coredump. If they match, then print those vma's as well (such as the batch buffers). NOTE: the output format was verified using the gem_exec_capture IGT test. Signed-off-by: Alan Previn <alan.previn.teres.alexis@intel.com> Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220321164527.2500062-14-alan.previn.teres.alexis@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.