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platform_kernel-5.15
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ANDROID: thermal: Add vendor hooks for thermal 

Need to get the request frequency and target frequency
use it to do frequency check and modify it according to
the platform thermal requirements.

Bug: 208166320

Signed-off-by: Jeson Gao <jeson.gao@unisoc.com>
Change-Id: I776b43c8f559b8a072abd8d3abcb3528348b2c5d
(cherry picked from commit fc827b344f76709dc7f242c7db32e1828f510fdd)
This commit is contained in:
Jeson Gao 2021-11-29 17:01:50 +08:00 committed by jeson gao
parent 0e189b0893
commit 11f1be4453
3 changed files with 32 additions and 0 deletions
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3
drivers/android/vendor_hooks.c
View File

@ -51,6 +51,7 @@
#include <trace/hooks/fault.h>
#include <trace/hooks/traps.h>
#include <trace/hooks/fips140.h>
#include <trace/hooks/thermal.h>
/*
* Export tracepoints that act as a bare tracehook (ie: have no trace event
@ -248,3 +249,5 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_sha256);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_aes_expandkey);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_aes_encrypt);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_aes_decrypt);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_modify_thermal_request_freq);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_modify_thermal_target_freq);

5
drivers/thermal/cpufreq_cooling.c
View File

@ -23,6 +23,7 @@
#include <linux/thermal.h>
#include <trace/events/thermal.h>
#include <trace/hooks/thermal.h>
/*
* Cooling state <-> CPUFreq frequency
@ -218,6 +219,8 @@ static int cpufreq_get_requested_power(struct thermal_cooling_device *cdev,
freq = cpufreq_quick_get(policy->cpu);
trace_android_vh_modify_thermal_request_freq(policy, &freq);
if (trace_thermal_power_cpu_get_power_enabled()) {
u32 ncpus = cpumask_weight(policy->related_cpus);
@ -317,6 +320,8 @@ static int cpufreq_power2state(struct thermal_cooling_device *cdev,
normalised_power = (power * 100) / last_load;
target_freq = cpu_power_to_freq(cpufreq_cdev, normalised_power);
trace_android_vh_modify_thermal_target_freq(policy, &target_freq);
*state = get_level(cpufreq_cdev, target_freq);
trace_thermal_power_cpu_limit(policy->related_cpus, target_freq, *state,
power);

24
include/trace/hooks/thermal.h Normal file
View File

@ -0,0 +1,24 @@
/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM thermal
#define TRACE_INCLUDE_PATH trace/hooks
#if !defined(_TRACE_HOOK_THERMAL_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_HOOK_THERMAL_H
#include <linux/tracepoint.h>
#include <trace/hooks/vendor_hooks.h>
#include <linux/cpufreq.h>
DECLARE_HOOK(android_vh_modify_thermal_request_freq,
TP_PROTO(struct cpufreq_policy *policy, unsigned long *request_freq),
TP_ARGS(policy, request_freq));
DECLARE_HOOK(android_vh_modify_thermal_target_freq,
TP_PROTO(struct cpufreq_policy *policy, unsigned int *target_freq),
TP_ARGS(policy, target_freq));
#endif /* _TRACE_HOOK_THERMAL_H */
/* This part must be outside protection */
#include <trace/define_trace.h>