static void __spin_lock_debug(raw_spinlock_t *lock)
{
u64 i;
u64 loops = loops_per_jiffy * LOOP_HZ;
int print_once = 1;
char aee_str[40];
unsigned long long t1;
t1 = sched_clock();
for (;;) {
for (i = 0; i < loops; i++) {
if (arch_spin_trylock(&lock->raw_lock))
return;
__delay(1);
}
/* lockup suspected: */
printk("spin time: %llu ns(start:%llu ns, lpj:%lu, HZ:%d)", sched_clock() - t1, t1, loops_per_jiffy, (int)LOOP_HZ);
if (print_once) {
print_once = 0;
spin_dump(lock, "lockup");
#ifdef CONFIG_SMP
trigger_all_cpu_backtrace();
#endif
debug_show_all_locks();
snprintf( aee_str, 40, "Spinlock lockup:%s\n", current->comm);
aee_kernel_warning_api(__FILE__, __LINE__, DB_OPT_DUMMY_DUMP | DB_OPT_FTRACE, aee_str,"spinlock debugger\n");
}
}
}
static void spin_bug(raw_spinlock_t *lock, const char *msg)
{
char aee_str[50];
// if (!debug_locks_off())
// return;
spin_dump(lock, msg);
snprintf( aee_str, 50, "Spinlock %s :%s\n", current->comm, msg);
aee_kernel_warning_api(__FILE__, __LINE__, DB_OPT_DUMMY_DUMP | DB_OPT_FTRACE, aee_str,"spinlock debugger\n");
}
static int hang_detect_thread(void *arg)
{
/* unsigned long flags; */
struct sched_param param = {.sched_priority = RTPM_PRIO_WDT };
LOGE("[Hang_Detect] hang_detect thread starts.\n");
sched_setscheduler(current, SCHED_FIFO, ¶m);
while (1) {
if ((1 == hd_detect_enabled) && (FindTaskByName("system_server") != -1)) {
LOGE("[Hang_Detect] hang_detect thread counts down %d:%d.\n",
hang_detect_counter, hd_timeout);
if (hang_detect_counter <= 0) {
ShowStatus();
}
if (hang_detect_counter == 0)
{
LOGE("[Hang_Detect] we should triger HWT ...\n");
if(aee_mode!=AEE_MODE_CUSTOMER_USER)
{
aee_kernel_warning_api(__FILE__, __LINE__, DB_OPT_NE_JBT_TRACES|DB_OPT_DISPLAY_HANG_DUMP, "\nCRDISPATCH_KEY:SS Hang\n","we triger HWT ");
msleep(30 * 1000);
}
else //only Customer user load trigger HWT
{
aee_kernel_exception_api(__FILE__, __LINE__, DB_OPT_NE_JBT_TRACES|DB_OPT_DISPLAY_HANG_DUMP, "\nCRDISPATCH_KEY:SS Hang\n","we triger HWT ");
msleep(30 * 1000);
local_irq_disable();
while (1);
BUG();
}
}
hang_detect_counter--;
} else {
/* incase of system_server restart, we give 2 mins more.(4*HD_INTER) */
if (1 == hd_detect_enabled) {
hang_detect_counter = hd_timeout + 4;
hd_detect_enabled = 0;
}
LOGE("[Hang_Detect] hang_detect disabled.\n");
}
msleep((HD_INTER) * 1000);
}
return 0;
}
static void spin_bug(raw_spinlock_t *lock, const char *msg)
{
char aee_str[50];
spin_dump(lock, msg);
snprintf( aee_str, 50, "Spinlock %s :%s\n", current->comm, msg);
if(!strcmp(msg,"bad magic")){
printk("[spin lock debug] bad magic:%08x, should be %08x, may use an un-initial spin_lock or mem corrupt\n", lock->magic, SPINLOCK_MAGIC);
printk(">>>>>>>>>>>>>> Let's KE <<<<<<<<<<<<<<\n");
BUG_ON(1);
}
aee_kernel_warning_api(__FILE__, __LINE__, DB_OPT_DUMMY_DUMP | DB_OPT_FTRACE, aee_str,"spinlock debugger\n");
#ifdef CONFIG_PANIC_ON_DEBUG_SPINLOCK
panic("Please check this spin bug warning! if it is okay, disable CONFIG_PANIC_ON_DEBUG_SPINLOCK and ignore this warning!\n");
#endif
}
static void spin_bug(raw_spinlock_t *lock, const char *msg)
{
char aee_str[50];
// if (!debug_locks_off())
// return;
spin_dump(lock, msg);
snprintf( aee_str, 50, "Spinlock %s :%s\n", current->comm, msg);
if(!strcmp(msg,"bad magic")){
printk("[spin lock debug] bad magic:%08x, should be %08x, may use an un-initial spin_lock or mem corrupt\n", lock->magic, SPINLOCK_MAGIC);
printk(">>>>>>>>>>>>>> Let's KE <<<<<<<<<<<<<<\n");
BUG_ON(1);
}
aee_kernel_warning_api(__FILE__, __LINE__, DB_OPT_DUMMY_DUMP | DB_OPT_FTRACE, aee_str,"spinlock debugger\n");
}
static int lowmem_shrink(struct shrinker *s, struct shrink_control *sc)
{
struct task_struct *tsk;
struct task_struct *selected = NULL;
int rem = 0;
int tasksize;
int i;
int min_score_adj = OOM_SCORE_ADJ_MAX + 1;
int selected_tasksize = 0;
int selected_oom_score_adj;
int array_size = ARRAY_SIZE(lowmem_adj);
int other_free = global_page_state(NR_FREE_PAGES) - totalreserve_pages;
int other_file = global_page_state(NR_FILE_PAGES) -
global_page_state(NR_SHMEM);
/*
* If we already have a death outstanding, then
* bail out right away; indicating to vmscan
* that we have nothing further to offer on
* this pass.
*
*/
if (lowmem_deathpending &&
time_before_eq(jiffies, lowmem_deathpending_timeout))
return 0;
if (!spin_trylock(&lowmem_shrink_lock)){
lowmem_print(4, "lowmem_shrink lock faild\n");
return -1;
}
/* For JB: FOREGROUND is adj0 (Default lowmem_adj of AMS is 0, 1, 2, 4, 9, 15) */
/* For ICS: HOME is adj6 (Default lowmem_adj of AMS is 0, 1, 2, 4, 9, 15) */
if (other_free <= lowmem_minfree[1]) {
/* Notify Kernel that we should consider Android threshold */
lmk_adjz_minfree = lowmem_minfree[0];
} else {
lmk_adjz_minfree = 0;
}
if (lowmem_adj_size < array_size)
array_size = lowmem_adj_size;
if (lowmem_minfree_size < array_size)
array_size = lowmem_minfree_size;
for (i = 0; i < array_size; i++) {
if (other_free < lowmem_minfree[i] &&
other_file < lowmem_minfree[i]) {
min_score_adj = lowmem_adj[i];
break;
}
}
if (sc->nr_to_scan > 0)
lowmem_print(3, "lowmem_shrink %lu, %x, ofree %d %d, ma %d\n",
sc->nr_to_scan, sc->gfp_mask, other_free,
other_file, min_score_adj);
rem = global_page_state(NR_ACTIVE_ANON) +
global_page_state(NR_ACTIVE_FILE) +
global_page_state(NR_INACTIVE_ANON) +
global_page_state(NR_INACTIVE_FILE);
if (sc->nr_to_scan <= 0 || min_score_adj == OOM_SCORE_ADJ_MAX + 1) {
lowmem_print(5, "lowmem_shrink %lu, %x, return %d\n",
sc->nr_to_scan, sc->gfp_mask, rem);
/*
* disable indication if low memory
*/
#if defined (CONFIG_MTK_AEE_FEATURE) && defined (CONFIG_MT_ENG_BUILD)
if (in_lowmem) {
in_lowmem = 0;
lowmem_indicator = 1;
DAL_LowMemoryOff();
}
#endif
spin_unlock(&lowmem_shrink_lock);
return rem;
}
selected_oom_score_adj = min_score_adj;
// add debug log
#ifdef CONFIG_MT_ENG_BUILD
if (min_score_adj <= lowmem_debug_adj) {
lowmem_print(1, "======low memory killer=====\n");
lowmem_print(1, "Free memory other_free: %d, other_file:%d pages\n", other_free, other_file);
}
#endif
rcu_read_lock();
for_each_process(tsk) {
struct task_struct *p;
int oom_score_adj;
if (tsk->flags & PF_KTHREAD)
continue;
p = find_lock_task_mm(tsk);
if (!p)
continue;
if (test_tsk_thread_flag(p, TIF_MEMDIE) &&
time_before_eq(jiffies, lowmem_deathpending_timeout)) {
lowmem_print(1, "lowmem_shrink return directly, due to %d (%s) is dying\n",
p->pid, p->comm);
task_unlock(p);
rcu_read_unlock();
spin_unlock(&lowmem_shrink_lock);
return 0;
}
/* We use oom_score_adj to represent oom_adj here although the later has been deprecated by kernel. */
/* This is because that JB AMS still uses oom_adj to stand for the importantance of activities. */
/* oom_score_adj = p->signal->oom_score_adj; - 2012.07.16 - */
oom_score_adj = p->signal->oom_adj;
#ifdef CONFIG_MT_ENG_BUILD
if (min_score_adj <= lowmem_debug_adj)
lowmem_print(1, "Candidate %d (%s), adj %d, rss %lu, to kill\n",
p->pid, p->comm, oom_score_adj, get_mm_rss(p->mm));
#endif
if (oom_score_adj < min_score_adj) {
task_unlock(p);
continue;
}
tasksize = get_mm_rss(p->mm);
task_unlock(p);
if (tasksize <= 0)
continue;
if (selected) {
if (oom_score_adj < selected_oom_score_adj)
continue;
if (oom_score_adj == selected_oom_score_adj &&
tasksize <= selected_tasksize)
continue;
}
selected = p;
selected_tasksize = tasksize;
selected_oom_score_adj = oom_score_adj;
lowmem_print(2, "select %d (%s), adj %d, size %d, to kill\n",
p->pid, p->comm, oom_score_adj, tasksize);
}
if (selected) {
lowmem_print(1, "send sigkill to %d (%s), adj %d, size %d\n",
selected->pid, selected->comm,
selected_oom_score_adj, selected_tasksize);
lowmem_deathpending = selected;
lowmem_deathpending_timeout = jiffies + HZ;
#ifdef CONFIG_MT_ENG_BUILD
if (min_score_adj <= lowmem_debug_adj) {
lowmem_print(1, "low memory info:\n");
show_free_areas_minimum();
}
#endif
/*
* when kill adj=0 process trigger kernel warning, only in MTK internal eng/non_LCA load
*/
#if defined (CONFIG_MTK_AEE_FEATURE) && defined (CONFIG_MT_ENG_BUILD) && \
!defined (MTK_LCA_SUPPORT) && !defined (PARTIAL_BUILD) //mtk internal
if (selected_oom_score_adj <= 0) { // can set 16 for test
lowmem_print(1, "low memory trigger kernel warning\n");
aee_kernel_warning_api("LMK", 0, DB_OPT_DEFAULT|DB_OPT_DUMPSYS_ACTIVITY,
"Framework low memory", "please contact AP/AF memory module owner\n");
}
#endif
/*
* show an indication if low memory
*/
#if defined (CONFIG_MTK_AEE_FEATURE) && defined (CONFIG_MT_ENG_BUILD)
if (lowmem_indicator && selected_oom_score_adj <= 1) {
lowmem_print(5, "low memory: raise aee warning\n");
in_lowmem = 1;
lowmem_indicator = 0;
DAL_LowMemoryOn();
//aee_kernel_warning(module_name, lowmem_warning);
}
#endif
send_sig(SIGKILL, selected, 0);
set_tsk_thread_flag(selected, TIF_MEMDIE);
rem -= selected_tasksize;
}
lowmem_print(4, "lowmem_shrink %lu, %x, return %d\n",
sc->nr_to_scan, sc->gfp_mask, rem);
rcu_read_unlock();
spin_unlock(&lowmem_shrink_lock);
return rem;
}
static void __spin_lock_debug(raw_spinlock_t *lock)
{
#ifdef CONFIG_MTK_MUTATION
u64 i;
u64 loops = loops_per_jiffy * LOOP_HZ;
int print_once = 1;
char aee_str[50];
unsigned long long t1,t2;
t1 = sched_clock();
t2 = t1;
for (;;) {
for (i = 0; i < loops; i++) {
if (arch_spin_trylock(&lock->raw_lock))
return;
__delay(1);
}
if(sched_clock() - t2 < WARNING_TIME) continue;
t2 = sched_clock();
if(oops_in_progress != 0) continue; // in exception follow, printk maybe spinlock error
/* lockup suspected: */
printk("spin time: %llu ns(start:%llu ns, lpj:%lu, LPHZ:%d), value: 0x%08x\n", sched_clock() - t1, t1, loops_per_jiffy, (int)LOOP_HZ, lock->raw_lock.slock);
if (print_once) {
print_once = 0;
spin_dump(lock, "lockup suspected");
#ifdef CONFIG_SMP
trigger_all_cpu_backtrace();
#endif
debug_show_all_locks();
snprintf( aee_str, 50, "Spinlock lockup:%s\n", current->comm);
aee_kernel_warning_api(__FILE__, __LINE__, DB_OPT_DUMMY_DUMP | DB_OPT_FTRACE, aee_str,"spinlock debugger\n");
#ifdef CONFIG_PANIC_ON_DEBUG_SPINLOCK
panic("Please check this spin_lock bug warning! if it is okay, disable CONFIG_PANIC_ON_DEBUG_SPINLOCK and ignore this warning!\n");
#endif
}
}
#else //CONFIG_MTK_MUTATION
u64 i;
u64 loops = loops_per_jiffy * HZ;
for (i = 0; i < loops; i++) {
if (arch_spin_trylock(&lock->raw_lock))
return;
__delay(1);
}
/* lockup suspected: */
spin_dump(lock, "lockup suspected");
#ifdef CONFIG_SMP
trigger_all_cpu_backtrace();
#endif
/*
* The trylock above was causing a livelock. Give the lower level arch
* specific lock code a chance to acquire the lock. We have already
* printed a warning/backtrace at this point. The non-debug arch
* specific code might actually succeed in acquiring the lock. If it is
* not successful, the end-result is the same - there is no forward
* progress.
*/
arch_spin_lock(&lock->raw_lock);
#endif //CONFIG_MTK_MUTATION
}
static ssize_t tsallts_write(struct file *file, const char __user *buffer, size_t count,
loff_t *data)
{
int len = 0, i;
struct temp_data {
int trip[10];
int t_type[10];
char bind0[20], bind1[20], bind2[20], bind3[20], bind4[20];
char bind5[20], bind6[20], bind7[20], bind8[20], bind9[20];
int time_msec;
char desc[512];
};
struct temp_data *ptr_temp_data = kmalloc(sizeof(*ptr_temp_data), GFP_KERNEL);
tsallts_printk("[tsallts_write_ts2]\n");
if (ptr_temp_data == NULL) {
pr_warn("[%s] kmalloc fail\n\n", __func__);
return -ENOMEM;
}
len = (count < (sizeof(ptr_temp_data->desc) - 1)) ? count : (sizeof(ptr_temp_data->desc) - 1);
if (copy_from_user(ptr_temp_data->desc, buffer, len)) {
kfree(ptr_temp_data);
return 0;
}
ptr_temp_data->desc[len] = '\0';
if (sscanf
(ptr_temp_data->desc,
"%d %d %d %19s %d %d %19s %d %d %19s %d %d %19s %d %d %19s %d %d %19s %d %d %19s %d %d %19s %d %d %19s %d %d %19s %d",
&num_trip,
&ptr_temp_data->trip[0], &ptr_temp_data->t_type[0], ptr_temp_data->bind0,
&ptr_temp_data->trip[1], &ptr_temp_data->t_type[1], ptr_temp_data->bind1,
&ptr_temp_data->trip[2], &ptr_temp_data->t_type[2], ptr_temp_data->bind2,
&ptr_temp_data->trip[3], &ptr_temp_data->t_type[3], ptr_temp_data->bind3,
&ptr_temp_data->trip[4], &ptr_temp_data->t_type[4], ptr_temp_data->bind4,
&ptr_temp_data->trip[5], &ptr_temp_data->t_type[5], ptr_temp_data->bind5,
&ptr_temp_data->trip[6], &ptr_temp_data->t_type[6], ptr_temp_data->bind6,
&ptr_temp_data->trip[7], &ptr_temp_data->t_type[7], ptr_temp_data->bind7,
&ptr_temp_data->trip[8], &ptr_temp_data->t_type[8], ptr_temp_data->bind8,
&ptr_temp_data->trip[9], &ptr_temp_data->t_type[9], ptr_temp_data->bind9,
&ptr_temp_data->time_msec) == 32) {
tsallts_dprintk("[tsallts_write_ts2] tsallts_unregister_thermal\n");
if (thz_dev) {
mtk_thermal_zone_device_unregister(thz_dev);
thz_dev = NULL;
}
if (num_trip < 0 || num_trip > 10) {
aee_kernel_warning_api(__FILE__, __LINE__, DB_OPT_DEFAULT, "tsallts_write2",
"Bad argument");
tsallts_dprintk("[tsallts_write2] bad argument\n");
kfree(ptr_temp_data);
return -EINVAL;
}
for (i = 0; i < num_trip; i++)
g_THERMAL_TRIP[i] = ptr_temp_data->t_type[i];
g_bind0[0] = g_bind1[0] = g_bind2[0] = g_bind3[0] = g_bind4[0] = g_bind5[0] =
g_bind6[0] = g_bind7[0] = g_bind8[0] = g_bind9[0] = '\0';
for (i = 0; i < 20; i++) {
g_bind0[i] = ptr_temp_data->bind0[i];
g_bind1[i] = ptr_temp_data->bind1[i];
g_bind2[i] = ptr_temp_data->bind2[i];
g_bind3[i] = ptr_temp_data->bind3[i];
g_bind4[i] = ptr_temp_data->bind4[i];
g_bind5[i] = ptr_temp_data->bind5[i];
g_bind6[i] = ptr_temp_data->bind6[i];
g_bind7[i] = ptr_temp_data->bind7[i];
g_bind8[i] = ptr_temp_data->bind8[i];
g_bind9[i] = ptr_temp_data->bind9[i];
}
tsallts_dprintk("[tsallts_write1] g_THERMAL_TRIP_0=%d,g_THERMAL_TRIP_1=%d,g_THERMAL_TRIP_2=%d,",
g_THERMAL_TRIP[0], g_THERMAL_TRIP[1], g_THERMAL_TRIP[2]);
tsallts_dprintk("g_THERMAL_TRIP_3=%d,g_THERMAL_TRIP_4=%d,g_THERMAL_TRIP_5=%d,g_THERMAL_TRIP_6=%d,",
g_THERMAL_TRIP[3], g_THERMAL_TRIP[4], g_THERMAL_TRIP[5], g_THERMAL_TRIP[6]);
tsallts_dprintk("g_THERMAL_TRIP_7=%d,g_THERMAL_TRIP_8=%d,g_THERMAL_TRIP_9=%d,\n",
g_THERMAL_TRIP[7], g_THERMAL_TRIP[8], g_THERMAL_TRIP[9]);
tsallts_dprintk("[tsallts_write1] cooldev0=%s,cooldev1=%s,cooldev2=%s,cooldev3=%s,",
g_bind0, g_bind1, g_bind2, g_bind3);
tsallts_dprintk("cooldev4=%s,cooldev5=%s,cooldev6=%s,cooldev7=%s,cooldev8=%s,cooldev9=%s\n",
g_bind4, g_bind5, g_bind6, g_bind7, g_bind8, g_bind9);
for (i = 0; i < num_trip; i++)
trip_temp[i] = ptr_temp_data->trip[i];
interval = ptr_temp_data->time_msec;
tsallts_dprintk("[tsallts_write] trip_0_temp=%d,trip_1_temp=%d,trip_2_temp=%d,trip_3_temp=%d,",
trip_temp[0], trip_temp[1], trip_temp[2], trip_temp[3]);
tsallts_dprintk("trip_4_temp=%d,trip_5_temp=%d,trip_6_temp=%d,trip_7_temp=%d,trip_8_temp=%d,",
trip_temp[4], trip_temp[5], trip_temp[6], trip_temp[7], trip_temp[8]);
tsallts_dprintk("trip_9_temp=%d,time_ms=%d\n", trip_temp[9], interval);
tsallts_dprintk("[tsallts_write1] tsallts_register_thermal\n");
if (NULL == thz_dev) {
thz_dev = mtk_thermal_zone_device_register("mtkts2", num_trip, NULL,
&tsallts_dev_ops, 0, 0, 0,
interval);
}
kfree(ptr_temp_data);
return count;
}
tsallts_dprintk("[tsallts_write1] bad argument\n");
aee_kernel_warning_api(__FILE__, __LINE__, DB_OPT_DEFAULT, "tsallts_write2",
"Bad argument");
kfree(ptr_temp_data);
return -EINVAL;
}
