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ae2041510d
Differing default states set on driver init / perf init and as a result of a sysfs reset. The ETMv4 can be programmed to trace the entire instruction address range without the need to use address comparator filter resources. (Described in the ETMv4.x technical reference manual) sysfs reset was using this method, perf and default driver init were setup with an address range comparator for the entire address range. The perf / driver init has been altered to use the method without needing any comparator address hardware. Minor adjustment to the vinst_ctrl register initialisation to ensure correct zero initialisation. Signed-off-by: Mike Leach <mike.leach@linaro.org> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Link: https://lore.kernel.org/r/20200518180242.7916-15-mathieu.poirier@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.