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In-Memory Collection (IMC) counters are performance monitoring infrastructure. These counters need special sequence of SCOMs to init/start/stop which is handled by OPAL. And OPAL provides three APIs to init and control these IMC engines. OPAL API documentation: https://github.com/open-power/skiboot/blob/master/doc/opal-api/opal-imc-counters.rst Patch updates the kernel side powernv platform code to support the new OPAL APIs Signed-off-by: Hemant Kumar <hemant@linux.vnet.ibm.com> Signed-off-by: Anju T Sudhakar <anju@linux.vnet.ibm.com> Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> 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.