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ANDROID: thermal: Add a flag for vendor hook enable_thermal_power_throt-

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tle

Taking in account of SoC's surface temperature, we have to use more str-
ict temperature control to make IPA can monitor and mitigate temperature
control earlier and faster. It means power budget will be overridden wi-
th a more strict one(user power budget). So add an override flag.

It is not the same as "enable" flag. Originally, whether the IPA turns
on or not depends on whether the temperature exceeds switch_on_temp，the-
refore add "enable" flag.

About enable flag:
true: enable IPA control when temperature >= swtich_on_temp
false: disable IPA control when temperature < switch_on_temp

Now in order not to affect the original logic, add flag "override".

About override flag:
true: power budget is overridden by user power budget, and then thermal
power throttle takes action even if temperature < switch_on_temp.
false: power budget is not overridden, there's no other thermal requirm-
ent. Normal temperature control.

Bug: 209386157

Signed-off-by: Di Shen <di.shen@unisoc.com>
Change-Id: Ia9bbded636809d89d90a330df302391a5f4b3f5a
This commit is contained in:
Di Shen
2022-03-31 16:20:18 +08:00
committed by di shen
parent 8879650556
commit 602c233f65
2 changed files with 17 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/thermal/gov_power_allocator.c
View File

@@ -714,7 +714,8 @@ static int power_allocator_throttle(struct thermal_zone_device *tz, int trip)
int switch_on_temp, control_temp;
struct power_allocator_params *params = tz->governor_data;
bool update;
int enable = 1;
bool enable = true;
bool override = false;
/*
* We get called for every trip point but we only need to do
@@ -723,11 +724,22 @@ static int power_allocator_throttle(struct thermal_zone_device *tz, int trip)
if (trip != params->trip_max_desired_temperature)
return 0;
trace_android_vh_enable_thermal_power_throttle(&enable);
/*
* Enable or disable IPA control by temperature and user power budget.
* About enable:
* true: enable IPA control when temperature >= swtich_on_temp.
* false: disable IPA control when temperature < switch_on_temp.
* About override:
* true: power budget is overridden by user power budget.
* false: power budget is not overridden, there's no other thermal
* requirement.
*/
trace_android_vh_enable_thermal_power_throttle(&enable, &override);
if (enable)
ret = tz->ops->get_trip_temp(tz, params->trip_switch_on,
&switch_on_temp);
if (!enable || (!ret && (tz->temperature < switch_on_temp))) {
if (!enable || (!ret && (tz->temperature < switch_on_temp) &&
!override)) {
update = (tz->last_temperature >= switch_on_temp);
tz->passive = 0;
reset_pid_controller(params);

4
include/trace/hooks/thermal.h
View File

@@ -27,8 +27,8 @@ DECLARE_HOOK(android_vh_thermal_unregister,
TP_ARGS(policy));
DECLARE_HOOK(android_vh_enable_thermal_power_throttle,
TP_PROTO(int *enable),
TP_ARGS(enable));
TP_PROTO(bool *enable, bool *override),
TP_ARGS(enable, override));
DECLARE_HOOK(android_vh_thermal_power_cap,
TP_PROTO(u32 *power_range),