From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ethan Zhao Subject: [PATCH 0/2 v3]intel_pstate: skip this driver if hit Sun X86 servers Date: Tue, 25 Nov 2014 13:59:36 +0900 Message-ID: <1416891578-14171-1-git-send-email-ethan.zhao@oracle.com> Return-path: Sender: linux-doc-owner@vger.kernel.org To: linda.knippers@hp.com, viresh.kumar@linaro.org, rjw@rjwysocki.net, corbet@lwn.net, dirk.j.brandewie@intel.com Cc: linux-doc@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, ethan.kernel@gmail.com, Ethan Zhao List-Id: linux-pm@vger.kernel.org Oracle Sun servers(X86) have power capping features that work via ACPI _PPC method, patch No.1 is used to skip this driver if Oracle Sun server and _PPC detected. Patch No.2 introduces a kernel command line parameter for those who would like to enable intel_pstate on Sun X86 servers and be aware of the risk. Compiled and tested with stable-3.18-rc5 on Oracle Sun server X4-2 series. Thanks test and review by Linda Knippers and the suggestion,review from Dirk Brandewie . -- v2: fix break HP Proliant issue. v3: expand the hardware vendor list. Ethan Zhao (2): intel_pstate: skip this driver if Sun server has _PPC method intel_pstate: add kernel parameter to enable loading on Sun X86 servers. Documentation/kernel-parameters.txt | 3 +++ drivers/cpufreq/intel_pstate.c | 49 ++++++++++++++++++++++++++++++++++--- 2 files changed, 49 insertions(+), 3 deletions(-) -- 1.8.3.1