i9300: initial pegasusq powerhal

* based off flo
* powersave (3 core max/1GHz), balanced (current defaults), and performance
 (back off on downscaling)
* support for separate low power profiles (activated on
 screen off)

PS2: low power + min/max cpu freq support
PS3: whitespace fixes
PS4: apparently POWER_HINT_LOW_POWER means PROFILES[POWER_SAVE].

Change-Id: I786a9e0e35fcc1dba1510baa13493ecf261bdfcc

1 files changed, 198 insertions, 0 deletions

diff --git a/power/power.h b/power/power.h
new file mode 100644
index 0000000..db031cf
--- /dev/null
+++ b/power/power.h
@@ -0,0 +1,198 @@
+/*
+ * Copyright (C) 2016 The CyanogenMod Project <http://www.cyanogenmod.org>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+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;
+    int hotplug_freq_2_1;
+    int hotplug_freq_3_0;
+    int hotplug_freq_3_1;
+    int hotplug_freq_4_0;
+    // rq sizes for up/down
+    int hotplug_rq_1_1;
+    int hotplug_rq_2_0;
+    int hotplug_rq_2_1;
+    int hotplug_rq_3_0;
+    int hotplug_rq_3_1;
+    int hotplug_rq_4_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;
+} power_profile;
+
+static power_profile profiles[PROFILE_MAX] = {
+    [PROFILE_POWER_SAVE] = {
+        .hotplug_freq_1_1 = 800000,
+        .hotplug_freq_2_0 = 700000,
+        .hotplug_freq_2_1 = 1000000,
+        .hotplug_freq_3_0 = 900000,
+        .hotplug_freq_3_1 = 1200000,
+        .hotplug_freq_4_0 = 1100000,
+        .hotplug_rq_1_1 = 200,
+        .hotplug_rq_2_0 = 200,
+        .hotplug_rq_2_1 = 300,
+        .hotplug_rq_3_0 = 300,
+        .hotplug_rq_3_1 = 400,
+        .hotplug_rq_4_0 = 400,
+        .max_freq = 1000000,
+        .min_freq = -1,
+        .up_threshold = 95,
+        .down_differential = 2,
+        .min_cpu_lock = 0,
+        .max_cpu_lock = 3,
+        .cpu_down_rate = 5,
+        .sampling_rate = 200000,
+        .io_is_busy = 0,
+    },
+    [PROFILE_BALANCED] = {
+        .hotplug_freq_1_1 = 500000,
+        .hotplug_freq_2_0 = 500000,
+        .hotplug_freq_2_1 = 700000,
+        .hotplug_freq_3_0 = 700000,
+        .hotplug_freq_3_1 = 900000,
+        .hotplug_freq_4_0 = 900000,
+        .hotplug_rq_1_1 = 150,
+        .hotplug_rq_2_0 = 150,
+        .hotplug_rq_2_1 = 250,
+        .hotplug_rq_3_0 = 250,
+        .hotplug_rq_3_1 = 350,
+        .hotplug_rq_4_0 = 350,
+        .max_freq = -1,
+        .min_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,
+    },
+    [PROFILE_PERFORMANCE] = {
+        .hotplug_freq_1_1 = 500000,
+        .hotplug_freq_2_0 = 200000,
+        .hotplug_freq_2_1 = 500000,
+        .hotplug_freq_3_0 = 200000,
+        .hotplug_freq_3_1 = 700000,
+        .hotplug_freq_4_0 = 200000,
+        .hotplug_rq_1_1 = 150,
+        .hotplug_rq_2_0 = 100,
+        .hotplug_rq_2_1 = 200,
+        .hotplug_rq_3_0 = 150,
+        .hotplug_rq_3_1 = 250,
+        .hotplug_rq_4_0 = 200,
+        .min_freq = -1,
+        .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,
+    },
+};
+
+static power_profile profiles_low_power[PROFILE_MAX] = {
+    [PROFILE_POWER_SAVE] = {
+        .hotplug_freq_1_1 = 800000,
+        .hotplug_freq_2_0 = 800000,
+        .hotplug_freq_2_1 = 900000,
+        .hotplug_freq_3_0 = 900000,
+        .hotplug_freq_3_1 = 1200000,
+        .hotplug_freq_4_0 = 1100000,
+        .hotplug_rq_1_1 = 200,
+        .hotplug_rq_2_0 = 200,
+        .hotplug_rq_2_1 = 300,
+        .hotplug_rq_3_0 = 300,
+        .hotplug_rq_3_1 = 400,
+        .hotplug_rq_4_0 = 400,
+        .max_freq = 900000,
+        .min_freq = -1,
+        .up_threshold = 95,
+        .down_differential = 1,
+        .min_cpu_lock = 0,
+        .max_cpu_lock = 2,
+        .cpu_down_rate = 5,
+        .sampling_rate = 200000,
+        .io_is_busy = 0,
+    },
+    [PROFILE_BALANCED] = {
+        .hotplug_freq_1_1 = 700000,
+        .hotplug_freq_2_0 = 700000,
+        .hotplug_freq_2_1 = 900000,
+        .hotplug_freq_3_0 = 900000,
+        .hotplug_freq_3_1 = 1100000,
+        .hotplug_freq_4_0 = 1100000,
+        .hotplug_rq_1_1 = 150,
+        .hotplug_rq_2_0 = 150,
+        .hotplug_rq_2_1 = 250,
+        .hotplug_rq_3_0 = 250,
+        .hotplug_rq_3_1 = 350,
+        .hotplug_rq_4_0 = 350,
+        .max_freq = 1200000,
+        .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,
+    },
+    [PROFILE_PERFORMANCE] = {
+        .hotplug_freq_1_1 = 800000,
+        .hotplug_freq_2_0 = 500000,
+        .hotplug_freq_2_1 = 800000,
+        .hotplug_freq_3_0 = 500000,
+        .hotplug_freq_3_1 = 1000000,
+        .hotplug_freq_4_0 = 700000,
+        .hotplug_rq_1_1 = 150,
+        .hotplug_rq_2_0 = 100,
+        .hotplug_rq_2_1 = 200,
+        .hotplug_rq_3_0 = 150,
+        .hotplug_rq_3_1 = 250,
+        .hotplug_rq_4_0 = 200,
+        .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,
+    },
+};
+