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Based on ACPI 6.2 Section 8.4.7.1.9 If the PCC register space is used, all PCC registers, for all processors in the same performance domain (as defined by _PSD), must be defined to be in the same subspace. Based on Section 14.1 of ACPI specification, it is possible to have a maximum of 256 PCC subspace IDs. Add support of multiple PCC subspace ID instead of using a single global pcc_data structure. While at that, fix the time_delta check in send_pcc_cmd() so that last_mpar_reset and mpar_count are initialized properly. Signed-off-by: George Cherian <george.cherian@cavium.com> Reviewed-by: Prashanth Prakash <pprakash@codeaurora.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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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.