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      1 /*
      2  * Copyright (c) 2013, The Linux Foundation. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  * *    * Redistributions of source code must retain the above copyright
      8  *       notice, this list of conditions and the following disclaimer.
      9  *     * Redistributions in binary form must reproduce the above
     10  *       copyright notice, this list of conditions and the following
     11  *       disclaimer in the documentation and/or other materials provided
     12  *       with the distribution.
     13  *     * Neither the name of The Linux Foundation nor the names of its
     14  *       contributors may be used to endorse or promote products derived
     15  *       from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
     18  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
     20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
     21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
     24  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     25  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     26  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
     27  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 #define NODE_MAX (64)
     30 
     31 #define SCALING_GOVERNOR_PATH "/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor"
     32 #define DCVS_CPU0_SLACK_MAX_NODE "/sys/module/msm_dcvs/cores/cpu0/slack_time_max_us"
     33 #define DCVS_CPU0_SLACK_MIN_NODE "/sys/module/msm_dcvs/cores/cpu0/slack_time_min_us"
     34 #define MPDECISION_SLACK_MAX_NODE "/sys/module/msm_mpdecision/slack_time_max_us"
     35 #define MPDECISION_SLACK_MIN_NODE "/sys/module/msm_mpdecision/slack_time_min_us"
     36 #define SCALING_MIN_FREQ "/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq"
     37 #define ONDEMAND_GOVERNOR "ondemand"
     38 #define INTERACTIVE_GOVERNOR "interactive"
     39 #define MSMDCVS_GOVERNOR "msm-dcvs"
     40 #define SCHED_GOVERNOR "sched"
     41 
     42 #define HINT_HANDLED (0)
     43 #define HINT_NONE (-1)
     44 
     45 enum CPU_GOV_CHECK {
     46     CPU0 = 0,
     47     CPU1 = 1,
     48     CPU2 = 2,
     49     CPU3 = 3
     50 };
     51 
     52 #define UNUSED(x) UNUSED_ ## x __attribute__((__unused__))
     53 
     54