d830531f8f
commit a8fb40966f19ff81520d9ccf8f7e2b95201368b8 upstream. All Zen or newer CPU which support C3 shares cache. Its not necessary to flush the caches in software before entering C3. This will cause drop in performance for the cores which share some caches. ARB_DIS is not used with current AMD C state implementation. So set related flags correctly. Signed-off-by: Deepak Sharma <deepak.sharma@amd.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com> 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.