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POWER9 DD2 can see spurious PMU interrupts after state-loss idle in some conditions. A solution is to save and reload MMCR0 over state-loss idle. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Acked-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Tested-by: Anton Blanchard <anton@samba.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.