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f5718a7265
- Upon the G2H Notify-Err-Capture event, parse through the GuC Log Buffer (error-capture-subregion) and generate one or more capture-nodes. A single node represents a single "engine- instance-capture-dump" and contains at least 3 register lists: global, engine-class and engine-instance. An internal link list is maintained to store one or more nodes. - Because the link-list node generation happen before the call to i915_gpu_codedump, duplicate global and engine-class register lists for each engine-instance register dump if we find dependent-engine resets in a engine-capture-group. - When i915_gpu_coredump calls into capture_engine, (in a subsequent patch) we detach the matching node (guc-id, LRCA, etc) from the link list above and attach it to i915_gpu_coredump's intel_engine_coredump structure when have matching LRCA/guc-id/engine-instance. Additional notes to be aware of: - GuC generates the error capture dump into the GuC log buffer but this buffer is one big log buffer with 3 independent subregions within it. Each subregion is populated with different content and used in different ways and timings but all regions operate behave as independent ring buffers. Each guc-log subregion (general-logs, crash-dump and error- capture) has it's own guc_log_buffer_state that contain independent read and write pointers. 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/20220321164527.2500062-11-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.