2f6e9c3051
Add tracepoint events for recording the CXL uncorrectable and correctable errors. For uncorrectable errors, there is additional data of 512B from the header log register (CXL spec rev3 8.2.4.16.7). The trace event will intake a dynamic array that will dump the entire Header Log data. If multiple errors are set in the status register, then the 'first error' field (CXL spec rev3 v8.2.4.16.6) is read from the Error Capabilities and Control Register in order to determine the error. This implementation does not include CXL IDE Error details. Cc: Steven Rostedt <rostedt@goodmis.org> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org> Link: https://lore.kernel.org/r/166974413388.1608150.5875712482260436188.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Dan Williams <dan.j.williams@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.