power: Adds the implementation for sustained performance mode and VR
mode.
Implementation for sustained performance Mode is as follows:
- Hot plug out big cores
- Lower the CPU max frequency for little cores
- Lower the GPU max frequency
Implementation for VR mode is as as follows:
- Hot plug out big cores
- Set minimum CPU clocks
- Set minimum GPU clocks
- Set minimum bus speed
Change-Id: I31c1125f53f604fdd6e5cd28374afd6995c68e47
Signed-off-by: Ruchi Kandoi <kandoiruchi@gmail.com>
diff --git a/init.angler.rc b/init.angler.rc
index 9e67a77..b7849ed 100755
--- a/init.angler.rc
+++ b/init.angler.rc
@@ -209,6 +209,20 @@
chmod 0440 /persist/data/st_offset
chmod 0440 /persist/data/st_xtalk
+ chown system system /sys/class/kgsl/kgsl-3d0/devfreq/max_freq
+ chmod 0660 /sys/class/kgsl/kgsl-3d0/devfreq/max_freq
+ chown system system /sys/class/kgsl/kgsl-3d0/devfreq/min_freq
+ chmod 0660 /sys/class/kgsl/kgsl-3d0/devfreq/min_freq
+ chown system system /sys/class/devfreq/qcom,gpubw.70/min_freq
+ chmod 0660 /sys/class/devfreq/qcom,gpubw.70/min_freq
+ chown system system /sys/devices/system/cpu/cpu4/online
+ chmod 0660 /sys/devices/system/cpu/cpu4/online
+ chown system system /sys/devices/system/cpu/cpu5/online
+ chmod 0660 /sys/devices/system/cpu/cpu5/online
+ chown system system /sys/devices/system/cpu/cpu6/online
+ chmod 0660 /sys/devices/system/cpu/cpu6/online
+ chown system system /sys/devices/system/cpu/cpu7/online
+ chmod 0660 /sys/devices/system/cpu/cpu7/online
on charger
#set cpu4,5 online first, or they can't get into low power consumption mode
write /sys/devices/system/cpu/cpu4/online 1
diff --git a/power/power.c b/power/power.c
index 308ea0c..92fefc6 100644
--- a/power/power.c
+++ b/power/power.c
@@ -48,6 +48,14 @@
#include "performance.h"
#include "power-common.h"
+#define BUS_SPEED_PATH "/sys/class/devfreq/qcom,gpubw.70/min_freq"
+#define GPU_MAX_FREQ_PATH "/sys/class/kgsl/kgsl-3d0/devfreq/max_freq"
+#define GPU_MIN_FREQ_PATH "/sys/class/kgsl/kgsl-3d0/devfreq/min_freq"
+#define CPU4_ONLINE_PATH "/sys/devices/system/cpu/cpu4/online"
+#define CPU5_ONLINE_PATH "/sys/devices/system/cpu/cpu5/online"
+#define CPU6_ONLINE_PATH "/sys/devices/system/cpu/cpu6/online"
+#define CPU7_ONLINE_PATH "/sys/devices/system/cpu/cpu7/online"
+
static int saved_dcvs_cpu0_slack_max = -1;
static int saved_dcvs_cpu0_slack_min = -1;
static int saved_mpdecision_slack_max = -1;
@@ -55,7 +63,10 @@
static int saved_interactive_mode = -1;
static int slack_node_rw_failed = 0;
static int display_hint_sent;
+static int sustained_performance_mode = 0;
+static int vr_mode = 0;
int display_boost;
+static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
static struct hw_module_methods_t power_module_methods = {
.open = NULL,
@@ -215,6 +226,15 @@
int duration_hint = 0;
static unsigned long long previous_boost_time = 0;
+ // If we are in sustained perforamnce Mode, touch boost should be
+ // ignored.
+ pthread_mutex_lock(&lock);
+ if (sustained_performance_mode || vr_mode) {
+ pthread_mutex_unlock(&lock);
+ return;
+ }
+ pthread_mutex_unlock(&lock);
+
// little core freq bump for 1.5s
int resources[] = {0x20C};
int duration = 1500;
@@ -292,6 +312,78 @@
case POWER_HINT_VIDEO_DECODE:
process_video_decode_hint(data);
break;
+
+ /* While the system is Sustained Performance Mode:
+ * CPUfreq for the little cores are capped to 864MHz
+ * Big cores are hotplugged out
+ * GPU frequency is capped to 390 MHz
+ */
+ case POWER_HINT_SUSTAINED_PERFORMANCE:
+ {
+ static int handle = 0;
+
+ pthread_mutex_lock(&lock);
+ if (data) {
+ int resources[] = {0x1508};
+ int duration = 0;
+ handle = interaction_with_handle(handle, duration,
+ sizeof(resources)/sizeof(resources[0]),
+ resources);
+ sysfs_write(GPU_MAX_FREQ_PATH, "390000000");
+ if (vr_mode == 0) {
+ sysfs_write(CPU4_ONLINE_PATH, "0");
+ sysfs_write(CPU5_ONLINE_PATH, "0");
+ sysfs_write(CPU6_ONLINE_PATH, "0");
+ sysfs_write(CPU7_ONLINE_PATH, "0");
+ }
+ sustained_performance_mode = 1;
+ } else {
+ release_request(handle);
+ sysfs_write(GPU_MAX_FREQ_PATH, "600000000");
+ if (vr_mode == 0) {
+ sysfs_write(CPU4_ONLINE_PATH, "1");
+ sysfs_write(CPU5_ONLINE_PATH, "1");
+ sysfs_write(CPU6_ONLINE_PATH, "1");
+ sysfs_write(CPU7_ONLINE_PATH, "1");
+ }
+ sustained_performance_mode = 0;
+ }
+ pthread_mutex_unlock(&lock);
+ }
+ break;
+ case POWER_HINT_VR_MODE:
+ {
+ static int handle_vr = 0;
+ pthread_mutex_lock(&lock);
+ if (data) {
+ int resources[] = {0x206};
+ int duration = 0;
+ handle_vr = interaction_with_handle(handle_vr, duration,
+ sizeof(resources)/sizeof(resources[0]),
+ resources);
+ sysfs_write(GPU_MIN_FREQ_PATH, "305000000");
+ sysfs_write(BUS_SPEED_PATH, "7904");
+ if (sustained_performance_mode == 0) {
+ sysfs_write(CPU4_ONLINE_PATH, "0");
+ sysfs_write(CPU5_ONLINE_PATH, "0");
+ sysfs_write(CPU6_ONLINE_PATH, "0");
+ sysfs_write(CPU7_ONLINE_PATH, "0");
+ }
+ vr_mode = 1;
+ } else {
+ release_request(handle_vr);
+ sysfs_write(GPU_MIN_FREQ_PATH, "180000000");
+ sysfs_write(BUS_SPEED_PATH, "0");
+ if (sustained_performance_mode == 0) {
+ sysfs_write(CPU4_ONLINE_PATH, "1");
+ sysfs_write(CPU5_ONLINE_PATH, "1");
+ sysfs_write(CPU6_ONLINE_PATH, "1");
+ sysfs_write(CPU7_ONLINE_PATH, "1");
+ }
+ vr_mode = 0;
+ }
+ pthread_mutex_unlock(&lock);
+ }
}
}
diff --git a/power/utils.c b/power/utils.c
index 199425b..510dbf8 100644
--- a/power/utils.c
+++ b/power/utils.c
@@ -210,6 +210,11 @@
return 0;
}
+void release_request(int lock_handle) {
+ if (qcopt_handle && perf_lock_rel)
+ perf_lock_rel(lock_handle);
+}
+
void perform_hint_action(int hint_id, int resource_values[], int num_resources)
{
if (qcopt_handle) {
diff --git a/power/utils.h b/power/utils.h
index cd12c15..b2d6d07 100644
--- a/power/utils.h
+++ b/power/utils.h
@@ -40,3 +40,4 @@
void perform_hint_action(int hint_id, int resource_values[],
int num_resources);
void undo_hint_action(int hint_id);
+void release_request(int lock_handle);
