galaxys2-common: PowerHAL: Add PegasusQ-support

Change-Id: Id1b7a7a51f8b023ab66891f8ed4ee8dc06084bab

4 files changed, 494 insertions, 102 deletions

diff --git a/power/Android.mk b/power/Android.mk
index cb954a0..552e62f 100644
--- a/power/Android.mk
+++ b/power/Android.mk
@@ -16,6 +16,7 @@ LOCAL_PATH := $(call my-dir)
 
 include $(CLEAR_VARS)
 
+LOCAL_CFLAGS += -DUSE_PEGASUSQ_BOOSTING
 LOCAL_SRC_FILES := power.c
 LOCAL_SHARED_LIBRARIES := liblog libcutils
 LOCAL_MODULE := power.$(TARGET_BOOTLOADER_BOARD_NAME)
diff --git a/power/power.c b/power/power.c
index 90ea1c6..a93858a 100644
--- a/power/power.c
+++ b/power/power.c
@@ -1,8 +1,6 @@
 /*
- * Copyright (C) 2012 The Android Open Source Project
- * Copyright (C) 2014 The CyanogenMod Project
- * Copyright (C) 2014-2015 Andreas Schneider <asn@cryptomilk.org>
- * Copyright (C) 2014-2015 Christopher N. Hesse <raymanfx@gmail.com>
+ * Copyright (C) 2016 The CyanogenMod Project <http://www.cyanogenmod.org>
+ *           (C) 2017 The LineageOS Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,39 +14,36 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+#define LOG_TAG "PegasusPowerHAL"
 
-#include <ctype.h>
-#include <dirent.h>
+#include <hardware/hardware.h>
+#include <hardware/power.h>
+
+#include <stdbool.h>
 #include <errno.h>
 #include <fcntl.h>
-#include <malloc.h>
-#include <stdbool.h>
-#include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
 
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <unistd.h>
 
-#define LOG_TAG "SamsungPowerHAL"
-/* #define LOG_NDEBUG 0 */
+#define LOG_NDEBUG 0
+#define DEBUG 1
 #include <utils/Log.h>
 
-#include <hardware/hardware.h>
-#include <hardware/power.h>
-
 #include "power.h"
 
-struct samsung_power_module {
-    struct power_module base;
-};
+#define PEGASUSQ_PATH "/sys/devices/system/cpu/cpufreq/pegasusq/"
+#define MINMAX_CPU_PATH "/sys/power/"
 
-enum power_profile_e {
-    PROFILE_POWER_SAVE = 0,
-    PROFILE_BALANCED,
-    PROFILE_HIGH_PERFORMANCE
-};
-static enum power_profile_e current_power_profile = PROFILE_BALANCED;
+#define US_TO_NS (1000L)
+
+static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
+
+static int current_power_profile = -1;
+static bool is_low_power = false;
+static bool is_vsync_active = false;
 
 /**********************************************************
  *** HELPER FUNCTIONS
@@ -106,43 +101,236 @@ static void sysfs_write(const char *path, char *s)
     close(fd);
 }
 
-/**********************************************************
- *** POWER FUNCTIONS
- **********************************************************/
+static int sysfs_write_str(char *path, char *s) {
+    char buf[80];
+    int len;
+    int ret = 0;
+    int fd;
 
-static void set_power_profile(struct samsung_power_module *samsung_pwr,
-                              enum power_profile_e profile)
-{
-    int rc;
-    struct stat sb;
+    fd = open(path, O_WRONLY);
+    if (fd < 0) {
+        strerror_r(errno, buf, sizeof(buf));
+        ALOGE("Error opening %s: %s\n", path, buf);
+        return -1 ;
+    }
 
-    if (current_power_profile == profile) {
-        return;
+    len = write(fd, s, strlen(s));
+    if (len < 0) {
+        strerror_r(errno, buf, sizeof(buf));
+        ALOGE("Error writing to %s: %s\n", path, buf);
+        ret = -1;
     }
 
-    ALOGV("%s: profile=%d", __func__, profile);
+    close(fd);
 
-    switch (profile) {
-        case PROFILE_POWER_SAVE:
-            sysfs_write(GOVERNOR_PATH, GOV_POWERSAVE);
-            ALOGD("%s: set powersave mode", __func__);
-            break;
-        case PROFILE_BALANCED:
-            sysfs_write(GOVERNOR_PATH, GOV_BALANCED);
-            ALOGD("%s: set balanced mode", __func__);
-            break;
-        case PROFILE_HIGH_PERFORMANCE:
-            sysfs_write(GOVERNOR_PATH, GOV_HIGH_PERFORMANCE);
-            ALOGD("%s: set performance mode", __func__);
-            break;
+    return ret;
+}
+
+static int sysfs_write_int(char *path, int value) {
+    char buf[80];
+    snprintf(buf, 80, "%d", value);
+    return sysfs_write_str(path, buf);
+}
+
+static int sysfs_write_long(char *path, long value) {
+    char buf[80];
+    snprintf(buf, 80, "%ld", value);
+    return sysfs_write_str(path, buf);
+}
+
+#ifdef LOG_NDEBUG
+#define WRITE_PEGASUSQ_PARAM(profile, param) do { \
+    ALOGV("%s: WRITE_PEGASUSQ_PARAM(profile=%d, param=%s): new val => %d", __func__, profile, #param, profiles[profile].param); \
+    sysfs_write_int(PEGASUSQ_PATH #param, profiles[profile].param); \
+} while (0)
+#define WRITE_LOW_POWER_PARAM(profile, param) do { \
+    ALOGV("%s: WRITE_LOW_POWER_PARAM(profile=%d, param=%s): new val => %d", \
+            __func__, profile, #param, profiles_low_power[profile].param); \
+    sysfs_write_int(PEGASUSQ_PATH #param, profiles_low_power[profile].param); \
+} while (0)
+#define WRITE_PEGASUSQ_VALUE(param, value) do { \
+    ALOGV("%s: WRITE_PEGASUSQ_VALUE(param=%s, value=%d)", __func__, #param, value); \
+    sysfs_write_int(PEGASUSQ_PATH #param, value); \
+} while (0)
+#define WRITE_MINMAX_CPU(param, value) do { \
+    ALOGV("%s: WRITE_MINMAX_CPU(param=%s, value=%d)", __func__, #param, value); \
+    sysfs_write_int(MINMAX_CPU_PATH #param, value); \
+} while(0)
+#else
+#define WRITE_PEGASUSQ_PARAM(profile, param) sysfs_write_int(PEGASUSQ_PATH #param, profiles[profile].param)
+#define WRITE_LOW_POWER_PARAM(profile, param) sysfs_write_int(PEGASUSQ_PATH #param, profiles_low_power[profile].param)
+#define WRITE_PEGASUSQ_VALUE(param, value)   sysfs_write_int(PEGASUSQ_PATH #param, value)
+#define WRITE_MINMAX_CPU(param, value) sysfs_write_int(MINMAX_CPU_PATH #param, value)
+#endif
+static bool check_governor_pegasusq() {
+    struct stat s;
+    int err = stat(PEGASUSQ_PATH, &s);
+    if (err != 0) return false;
+    return S_ISDIR(s.st_mode);
+}
+
+static bool is_profile_valid(int profile) {
+    return profile >= 0 && profile < PROFILE_MAX;
+}
+
+static void set_power_profile(int profile) {
+    if (!is_profile_valid(profile)) {
+        ALOGE("%s: unknown profile: %d", __func__, profile);
+        return;
     }
 
+    if (profile == current_power_profile) return;
+
+    if (check_governor_pegasusq()) {
+        WRITE_PEGASUSQ_PARAM(profile, hotplug_freq_1_1);
+        WRITE_PEGASUSQ_PARAM(profile, hotplug_freq_2_0);
+        WRITE_PEGASUSQ_PARAM(profile, hotplug_rq_1_1);
+        WRITE_PEGASUSQ_PARAM(profile, hotplug_rq_2_0);
+        WRITE_MINMAX_CPU(cpufreq_max_limit, profiles[profile].max_freq);
+        WRITE_MINMAX_CPU(cpufreq_min_limit, profiles[profile].min_freq);
+        WRITE_PEGASUSQ_PARAM(profile, up_threshold);
+        WRITE_PEGASUSQ_PARAM(profile, down_differential);
+        WRITE_PEGASUSQ_PARAM(profile, min_cpu_lock);
+        WRITE_PEGASUSQ_PARAM(profile, max_cpu_lock);
+        WRITE_PEGASUSQ_PARAM(profile, cpu_down_rate);
+        WRITE_PEGASUSQ_PARAM(profile, sampling_rate);
+        WRITE_PEGASUSQ_PARAM(profile, io_is_busy);
+        WRITE_PEGASUSQ_PARAM(profile, boost_freq);
+        WRITE_PEGASUSQ_PARAM(profile, boost_mincpus);
+    } else {
+        switch (profile) {
+            case PROFILE_POWER_SAVE:
+                sysfs_write(GOVERNOR_PATH, GOV_POWERSAVE);
+                ALOGD("%s: activate powersave governor", __func__);
+                break;
+            case PROFILE_BALANCED:
+                sysfs_write(GOVERNOR_PATH, GOV_ONDEMAND);
+                ALOGD("%s: activate ondemand governor", __func__);
+                break;
+            case PROFILE_PERFORMANCE:
+                sysfs_write(GOVERNOR_PATH, GOV_PERFORMANCE);
+                ALOGD("%s: activate performance governor", __func__);
+                break;
+        }
+    }
     current_power_profile = profile;
+
+    if (DEBUG) ALOGV("%s: %d", __func__, profile);
+}
+
+static void boost(long boost_time) {
+#ifdef USE_PEGASUSQ_BOOSTING
+    if (is_vsync_active || !check_governor_pegasusq()) return;
+    if (boost_time == -1) {
+        sysfs_write_int(PEGASUSQ_PATH "boost_lock_time", -1);
+    } else {
+        sysfs_write_long(PEGASUSQ_PATH "boost_lock_time", boost_time);
+    }
+#endif
 }
 
+static void end_boost() {
+#ifdef USE_PEGASUSQ_BOOSTING
+    if (is_vsync_active || !check_governor_pegasusq()) return;
+    sysfs_write_int(PEGASUSQ_PATH "boost_lock_time", 0);
+#endif
+}
 
-static void samsung_power_init(struct power_module *module)
-{
+static void set_low_power(bool low_power) {
+    if (!is_profile_valid(current_power_profile)) {
+        if (DEBUG) ALOGV("%s: current_power_profile not set yet", __func__);
+        return;
+    }
+
+    if (!check_governor_pegasusq()) return;
+
+    if (is_low_power == low_power) return;
+
+    if (low_power) {
+        end_boost();
+
+        WRITE_LOW_POWER_PARAM(current_power_profile, hotplug_freq_1_1);
+        WRITE_LOW_POWER_PARAM(current_power_profile, hotplug_freq_2_0);
+        WRITE_LOW_POWER_PARAM(current_power_profile, hotplug_rq_1_1);
+        WRITE_LOW_POWER_PARAM(current_power_profile, hotplug_rq_2_0);
+        WRITE_MINMAX_CPU(cpufreq_max_limit, profiles_low_power[current_power_profile].max_freq);
+        WRITE_MINMAX_CPU(cpufreq_min_limit, profiles_low_power[current_power_profile].min_freq);
+        WRITE_LOW_POWER_PARAM(current_power_profile, up_threshold);
+        WRITE_LOW_POWER_PARAM(current_power_profile, down_differential);
+        WRITE_LOW_POWER_PARAM(current_power_profile, min_cpu_lock);
+        WRITE_LOW_POWER_PARAM(current_power_profile, max_cpu_lock);
+        WRITE_LOW_POWER_PARAM(current_power_profile, cpu_down_rate);
+        WRITE_LOW_POWER_PARAM(current_power_profile, sampling_rate);
+        WRITE_LOW_POWER_PARAM(current_power_profile, io_is_busy);
+        is_low_power = true;
+    } else {
+        WRITE_PEGASUSQ_PARAM(current_power_profile, hotplug_freq_1_1);
+        WRITE_PEGASUSQ_PARAM(current_power_profile, hotplug_freq_2_0);
+        WRITE_PEGASUSQ_PARAM(current_power_profile, hotplug_rq_1_1);
+        WRITE_PEGASUSQ_PARAM(current_power_profile, hotplug_rq_2_0);
+        WRITE_MINMAX_CPU(cpufreq_max_limit, profiles[current_power_profile].max_freq);
+        WRITE_MINMAX_CPU(cpufreq_min_limit, profiles[current_power_profile].min_freq);
+        WRITE_PEGASUSQ_PARAM(current_power_profile, up_threshold);
+        WRITE_PEGASUSQ_PARAM(current_power_profile, down_differential);
+        WRITE_PEGASUSQ_PARAM(current_power_profile, min_cpu_lock);
+        WRITE_PEGASUSQ_PARAM(current_power_profile, max_cpu_lock);
+        WRITE_PEGASUSQ_PARAM(current_power_profile, cpu_down_rate);
+        WRITE_PEGASUSQ_PARAM(current_power_profile, sampling_rate);
+        WRITE_PEGASUSQ_PARAM(current_power_profile, io_is_busy);
+        WRITE_PEGASUSQ_PARAM(current_power_profile, boost_freq);
+        WRITE_PEGASUSQ_PARAM(current_power_profile, boost_mincpus);
+
+        is_low_power = false;
+    }
+}
+
+
+
+/*
+ * (*init)() performs power management setup actions at runtime
+ * startup, such as to set default cpufreq parameters.  This is
+ * called only by the Power HAL instance loaded by
+ * PowerManagerService.
+ */
+static void power_init(__attribute__((unused)) struct power_module *module) {
+    set_power_profile(PROFILE_BALANCED);
+    if (DEBUG) ALOGV("%s", __func__);
+}
+
+/*
+ * The setInteractive function performs power management actions upon the
+ * system entering interactive state (that is, the system is awake and ready
+ * for interaction, often with UI devices such as display and touchscreen
+ * enabled) or non-interactive state (the system appears asleep, display
+ * usually turned off).  The non-interactive state is usually entered after a
+ * period of inactivity, in order to conserve battery power during such
+ * inactive periods.
+ *
+ * Typical actions are to turn on or off devices and adjust cpufreq parameters.
+ * This function may also call the appropriate interfaces to allow the kernel
+ * to suspend the system to low-power sleep state when entering non-interactive
+ * state, and to disallow low-power suspend when the system is in interactive
+ * state.  When low-power suspend state is allowed, the kernel may suspend the
+ * system whenever no wakelocks are held.
+ *
+ * on is non-zero when the system is transitioning to an interactive / awake
+ * state, and zero when transitioning to a non-interactive / asleep state.
+ *
+ * This function is called to enter non-interactive state after turning off the
+ * screen (if present), and called to enter interactive state prior to turning
+ * on the screen.
+ */
+static void power_set_interactive(__attribute__((unused)) struct power_module *module, int on) {
+    if (!is_profile_valid(current_power_profile)) {
+        ALOGD("%s: no power profile selected", __func__);
+        return;
+    }
+
+    if (!check_governor_pegasusq()) return;
+    if (DEBUG) ALOGV("%s: setting interactive => %d", __func__, on);
+    pthread_mutex_lock(&lock);
+    set_low_power(!on);
+    pthread_mutex_unlock(&lock);
 }
 
 /*
@@ -181,74 +369,92 @@ static void samsung_power_init(struct power_module *module)
  *     be boosted for a specific duration. The data parameter is an
  *     integer value of the boost duration in microseconds.
  */
-static void samsung_power_hint(struct power_module *module,
-                                  power_hint_t hint,
-                                  void *data)
-{
-    struct samsung_power_module *samsung_pwr = (struct samsung_power_module *) module;
+static void power_hint(__attribute__((unused)) struct power_module *module, power_hint_t hint, void *data) {
+    int32_t val;
+
+    if (hint == POWER_HINT_SET_PROFILE) {
+        if (DEBUG) ALOGV("%s: set profile %d", __func__, *(int32_t *)data);
+        pthread_mutex_lock(&lock);
+        if (is_vsync_active) {
+            is_vsync_active = false;
+            end_boost();
+        }
+        set_power_profile(*(int32_t *)data);
+        pthread_mutex_unlock(&lock);
+    }
+
+    if (current_power_profile == PROFILE_POWER_SAVE) return;
+
+    pthread_mutex_lock(&lock);
 
     switch (hint) {
-        case POWER_HINT_SET_PROFILE: {
-            int32_t profile = *((intptr_t *)data);
-            ALOGV("%s: POWER_HINT_SET_PROFILE", __func__);
-            set_power_profile(samsung_pwr, profile);
-            break;
-        }
-        case POWER_HINT_LOW_POWER: {
-            ALOGV("%s: POWER_HINT_LOW_POWER", __func__);
+        case POWER_HINT_INTERACTION:
+            if (DEBUG) ALOGV("%s: interaction", __func__);
+            if (data) {
+                val = *(int32_t *)data;
+                if (data) {
+                    boost(val * US_TO_NS);
+                } else {
+                    boost(profiles[current_power_profile].interaction_boost_time);
+                }
+            }
             break;
-        }
-        case POWER_HINT_CPU_BOOST: {
-            ALOGV("%s: POWER_HINT_CPU_BOOST", __func__);
+        case POWER_HINT_LAUNCH:
+            if (DEBUG) ALOGV("%s: launch", __func__);
+            boost(profiles[current_power_profile].launch_boost_time);
             break;
-        }
-        case POWER_HINT_INTERACTION: {
-            ALOGV("%s: POWER_HINT_INTERACTION", __func__);
+/*       case POWER_HINT_VSYNC:
+            if (data) {
+                ALOGV("%s: vsync", __func__);
+                boost(-1);
+                is_vsync_active = true;
+            } else {
+                is_vsync_active = false;
+                end_boost();
+            }
+            break;*/
+        case POWER_HINT_CPU_BOOST:
+            if (DEBUG) ALOGV("%s: cpu_boost", __func__);
+            boost((*(int32_t *)data) * US_TO_NS);
             break;
-        }
         default:
+            //ALOGV("%s: not handled", __func__);
             break;
     }
+
+    pthread_mutex_unlock(&lock);
 }
 
-static int samsung_get_feature(struct power_module *module __unused,
-                               feature_t feature)
-{
+/*
+ * (*getFeature) is called to get the current value of a particular
+ * feature or capability from the hardware or PowerHAL
+ */
+static int power_get_feature(__attribute__((unused)) struct power_module *module, feature_t feature) {
+    if (DEBUG) ALOGV("%s: %d", __func__, feature);
     if (feature == POWER_FEATURE_SUPPORTED_PROFILES) {
-        return 3;
+        return PROFILE_MAX;
     }
-
+    if (DEBUG) ALOGV("%s: unknown feature %d", __func__, feature);
     return -1;
 }
 
-static void samsung_set_feature(struct power_module *module, feature_t feature, int state __unused)
-{
-}
-
-static void samsung_power_set_interactive(struct power_module *module, int on)
-{
-}
-
 static struct hw_module_methods_t power_module_methods = {
     .open = NULL,
 };
 
-struct samsung_power_module HAL_MODULE_INFO_SYM = {
-    .base = {
-        .common = {
-            .tag = HARDWARE_MODULE_TAG,
-            .module_api_version = POWER_MODULE_API_VERSION_0_2,
-            .hal_api_version = HARDWARE_HAL_API_VERSION,
-            .id = POWER_HARDWARE_MODULE_ID,
-            .name = "Samsung Power HAL",
-            .author = "The CyanogenMod Project",
-            .methods = &power_module_methods,
-        },
-
-        .init = samsung_power_init,
-        .setInteractive = samsung_power_set_interactive,
-        .powerHint = samsung_power_hint,
-        .getFeature = samsung_get_feature,
-        .setFeature = samsung_set_feature
+struct power_module HAL_MODULE_INFO_SYM = {
+    .common = {
+        .tag = HARDWARE_MODULE_TAG,
+        .module_api_version = POWER_MODULE_API_VERSION_0_2,
+        .hal_api_version = HARDWARE_HAL_API_VERSION,
+        .id = POWER_HARDWARE_MODULE_ID,
+        .name = "smdk4210 Power HAL",
+        .author = "The CyanogenMod Project",
+        .methods = &power_module_methods,
     },
+
+    .init = power_init,
+    .setInteractive = power_set_interactive,
+    .powerHint = power_hint,
+    .getFeature = power_get_feature
 };
diff --git a/power/power.h b/power/power.h
index e91feb9..e6ed434 100644
--- a/power/power.h
+++ b/power/power.h
@@ -16,6 +16,166 @@
 
 #define GOVERNOR_PATH "/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor"
 
+#define GOV_PERFORMANCE      "performance"
+#define GOV_ONDEMAND         "ondemand"
+#define GOV_PEGASUSQ         "pegasusq"
 #define GOV_POWERSAVE        "conservative"
-#define GOV_BALANCED         "ondemand"
-#define GOV_HIGH_PERFORMANCE "performance"
+
+#define MS_TO_NS (1000000L)
+
+enum {
+    PROFILE_POWER_SAVE = 0,
+    PROFILE_BALANCED,
+    PROFILE_PERFORMANCE,
+    PROFILE_MAX
+};
+
+typedef struct governor_settings {
+    // freq values for core up/down
+    int hotplug_freq_1_1;
+    int hotplug_freq_2_0;
+    // rq sizes for up/down
+    int hotplug_rq_1_1;
+    int hotplug_rq_2_0;
+    // max/min freqs (-1 for default)
+    int max_freq;
+    int min_freq;
+    // load at which to start scaling up
+    int up_threshold;
+    // higher down_differential == slower downscaling
+    int down_differential;
+    // min/max num of cpus to have online
+    int min_cpu_lock;
+    int max_cpu_lock;
+    // wait sampling_rate * cpu_down_rate us before trying to downscale
+    int cpu_down_rate;
+    int sampling_rate; // in microseconds
+    int io_is_busy;
+    // boosting
+    int boost_freq;
+    int boost_mincpus;
+    long interaction_boost_time;
+    long launch_boost_time;
+} power_profile;
+
+static power_profile profiles[PROFILE_MAX] = {
+    [PROFILE_POWER_SAVE] = {
+        .hotplug_freq_1_1 = 300000,
+        .hotplug_freq_2_0 = 300000,
+        .hotplug_rq_1_1 = 200,
+        .hotplug_rq_2_0 = 200,
+        .max_freq = 600000,
+        .min_freq = 100000,
+        .up_threshold = 95,
+        .down_differential = 2,
+        .min_cpu_lock = 0,
+        .max_cpu_lock = 0,
+        .cpu_down_rate = 5,
+        .sampling_rate = 200000,
+        .io_is_busy = 0,
+        .boost_freq = 400000,
+        .boost_mincpus = 2,
+        .interaction_boost_time = 60 * (MS_TO_NS),
+        .launch_boost_time = 2000 * (MS_TO_NS),
+    },
+    [PROFILE_BALANCED] = {
+        .hotplug_freq_1_1 = 600000,
+        .hotplug_freq_2_0 = 600000,
+        .hotplug_rq_1_1 = 150,
+        .hotplug_rq_2_0 = 150,
+        .min_freq = 200000,
+        .max_freq = -1,
+        .up_threshold = 90,
+        .down_differential = 3,
+        .min_cpu_lock = 0,
+        .max_cpu_lock = 0,
+        .cpu_down_rate = 10,
+        .sampling_rate = 200000,
+        .io_is_busy = 0,
+        .boost_freq = 1000000,
+        .boost_mincpus = 0,
+        .interaction_boost_time = 120 * (MS_TO_NS),
+        .launch_boost_time = 4000 * (MS_TO_NS),
+    },
+    [PROFILE_PERFORMANCE] = {
+        .hotplug_freq_1_1 = 600000,
+        .hotplug_freq_2_0 = 400000,
+        .hotplug_rq_1_1 = 100,
+        .hotplug_rq_2_0 = 100,
+        .min_freq = 400000,
+        .max_freq = -1,
+        .up_threshold = 80,
+        .down_differential = 5,
+        .min_cpu_lock = 0,
+        .max_cpu_lock = 0,
+        .cpu_down_rate = 20,
+        .sampling_rate = 200000,
+        .io_is_busy = 1,
+        .boost_freq = 1000000,
+        .boost_mincpus = 2,
+        .interaction_boost_time = 180 * (MS_TO_NS),
+        .launch_boost_time = 6000 * (MS_TO_NS),
+    },
+};
+
+// for non-interactive profiles we don't need to worry about
+// boosting as it (should) only occur while the screen is on
+static power_profile profiles_low_power[PROFILE_MAX] = {
+    [PROFILE_POWER_SAVE] = {
+        .hotplug_freq_1_1 = 800000,
+        .hotplug_freq_2_0 = 800000,
+        .hotplug_rq_1_1 = 200,
+        .hotplug_rq_2_0 = 200,
+        .max_freq = 800000,
+        .min_freq = -1,
+        .up_threshold = 95,
+        .down_differential = 1,
+        .min_cpu_lock = 0,
+        .max_cpu_lock = 1,
+        .cpu_down_rate = 5,
+        .sampling_rate = 200000,
+        .io_is_busy = 0,
+        .boost_freq = 0,
+        .boost_mincpus = 0,
+        .interaction_boost_time = 0,
+        .launch_boost_time = 0,
+    },
+    [PROFILE_BALANCED] = {
+        .hotplug_freq_1_1 = 800000,
+        .hotplug_freq_2_0 = 800000,
+        .hotplug_rq_1_1 = 150,
+        .hotplug_rq_2_0 = 150,
+        .max_freq = -1,
+        .min_freq = -1,
+        .up_threshold = 90,
+        .down_differential = 2,
+        .min_cpu_lock = 0,
+        .max_cpu_lock = 0,
+        .cpu_down_rate = 8,
+        .sampling_rate = 200000,
+        .io_is_busy = 0,
+        .boost_freq = 0,
+        .boost_mincpus = 0,
+        .interaction_boost_time = 0,
+        .launch_boost_time = 0,
+    },
+    [PROFILE_PERFORMANCE] = {
+        .hotplug_freq_1_1 = 800000,
+        .hotplug_freq_2_0 = 400000,
+        .hotplug_rq_1_1 = 100,
+        .hotplug_rq_2_0 = 100,
+        .min_freq = -1,
+        .max_freq = -1,
+        .up_threshold = 85,
+        .down_differential = 5,
+        .min_cpu_lock = 0,
+        .max_cpu_lock = 0,
+        .cpu_down_rate = 15,
+        .sampling_rate = 200000,
+        .io_is_busy = 1,
+        .boost_freq = 0,
+        .boost_mincpus = 0,
+        .interaction_boost_time = 0,
+        .launch_boost_time = 0,
+    },
+};
diff --git a/rootdir/init.smdk4210.rc b/rootdir/init.smdk4210.rc
index e49c680..fc32ba0 100644
--- a/rootdir/init.smdk4210.rc
+++ b/rootdir/init.smdk4210.rc
@@ -303,6 +303,31 @@ on post-fs-data
     chown radio system /sys/devices/virtual/accelerometer/accelerometer/acc_file
     chown radio system /sys/devices/virtual/sec/gsensorcal/calibration
 
+# Permissions for PegasusQ
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/boost_freq
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/boost_lock_time
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/boost_mincpus
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/cpu_down_freq
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/cpu_down_rate
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/cpu_up_freq
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/cpu_up_rate
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/cpucore_table
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/down_differential
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/dvfs_debug
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/freq_step
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/hotplug_freq_1_1
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/hotplug_freq_2_0
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/hotplug_lock
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/hotplug_rq_1_1
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/hotplug_rq_2_0
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/ignore_nice_load
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/io_is_busy
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/up_threshold
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/min_cpu_lock
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/max_cpu_lock
+    chown system system /sys/devices/system/cpu/cpufreq/pegasusq/sampling_rate
+
 # for device encryption
     setprop vold.post_fs_data_done 1