unsigned long acpuclk_wait_for_irq(void)
{
unsigned long rate = acpuclk_get_rate(smp_processor_id());
acpuclk_set_rate(smp_processor_id(), acpuclk_data->wait_for_irq_khz,
SETRATE_SWFI);
return rate;
}
static ssize_t pm_status_show(struct kobject *kobj, struct kobj_attribute *attr,
char *buf)
{
char *s = buf;
unsigned long rate; // khz
int cpu;
// show CPU clocks
for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
s += sprintf(s, "APPS[%d]:", cpu);
if (cpu_online(cpu)) {
#if 0
//acpuclk_get_rate doesn't work because acpuclk_data is no longer available in krait
rate = acpuclk_get_rate(cpu); // khz
s += sprintf(s, "(%3lu MHz); \n", rate / 1000);
#else
//Call acpu_clk_get_rate added in clock-krait-8974.c
rate = acpu_clk_get_rate(cpu); // hz
s += sprintf(s, "(%3lu MHz); \n", rate / 1000000);
#endif
} else {
s += sprintf(s, "sleep; \n");
}
}
s += wakelock_dump_info(s);
return (s - buf);
}
unsigned long acpuclk_power_collapse(void)
{
unsigned long rate = acpuclk_get_rate(smp_processor_id());
acpuclk_set_rate(smp_processor_id(), acpuclk_data->power_collapse_khz,
SETRATE_PC);
return rate;
}
unsigned int report_load_at_max_freq(int cpu)
{
struct cpu_load_data *pcpu;
unsigned int total_load = 0;
pcpu = &per_cpu(cpuload, cpu);
update_average_load(acpuclk_get_rate(cpu), cpu);
total_load = pcpu->avg_load_maxfreq;
pcpu->prev_avg_load_maxfreq = pcpu->avg_load_maxfreq;
pcpu->avg_load_maxfreq = 0;
return total_load;
}
/*
* cpu_info_msg: output message
* msg_len: the size of output message.
* output message is included cpu's usage, real cpu frequecy and cpu governor's current cpu frequency.
*/
void show_cpu_usage_and_freq(char * cpu_info_msg, int msg_len)
{
unsigned long cpu_freq = 0;
unsigned long cpu_curr_freq = 0;
long cpu_usage = 0;
long iowait_usage = 0;
int cpu;
int len = msg_len;
int str_len = 0;
int tmp_len = 0;
if(!cpu_info_msg || msg_len <= 0)
{
return;
}
for_each_present_cpu(cpu)
{
cpu_freq = acpuclk_get_rate(cpu); /*real cpu frequency*/
cpu_curr_freq = (unsigned long) cpufreq_quick_get(cpu); /*cpu governor's current cpu frequency*/
cpu_usage = get_cpu_usage(cpu, &iowait_usage); /*get cpu usage*/
//CORE-DL-ExportCpuInfo-00 +[
if (cpu == 0) {
cpu0_usage = cpu_usage;
iowait0_usage = iowait_usage;
} else if (cpu == 1) {
cpu1_usage = cpu_usage;
iowait1_usage = iowait_usage;
}
//CORE-DL-ExportCpuInfo-00 +]
tmp_len = snprintf((cpu_info_msg + str_len), len, "[C%d%s:%3ld%% IOW=%3ld%% F=%lu crF=%lu]", cpu, (cpu_is_offline(cpu) ? " off" : ""), cpu_usage, iowait_usage, cpu_freq, cpu_curr_freq);
str_len += tmp_len;
len -= tmp_len;
if(len <= 0 || str_len >= msg_len)
{
break;
}
}
if(len > 0 && str_len < msg_len)
{
snprintf((cpu_info_msg + str_len), len, "C%d:", smp_processor_id()); /*this cpu is handling this timer interrupt*/
}
}
static void msm_pm_restart(char str, const char *cmd)
{
int rc;
unsigned size;
#if defined(CONFIG_MACH_ARUBASLIM_OPEN)
unsigned int freq = 600000;
rc = acpuclk_set_rate(0, freq, SETRATE_CPUFREQ);
if (rc) {
printk(KERN_ERR "%s(): failed to restore clock rate(%lu)\n",
__func__, freq);
}
pr_info("%s: Current ACPU frequency %ld\n", __func__, acpuclk_get_rate(0));
#endif
samsung_vendor1_id *smem_vendor1 = \
(samsung_vendor1_id *)smem_get_entry(SMEM_ID_VENDOR1, &size);
if (smem_vendor1) {
smem_vendor1->silent_reset = 0xAEAEAEAE;
smem_vendor1->reboot_reason = restart_reason;
smem_vendor1->AP_reserved[0] = 0;
} else {
printk(KERN_EMERG "smem_flag is NULL\n");
}
pr_debug("The reset reason is %x\n", restart_reason);
rc = ncp6335d_restart_config();
if (rc)
pr_err("Unable to configure NCP6335D for restart\n");
/* Disable interrupts */
local_irq_disable();
local_fiq_disable();
/*
* Take out a flat memory mapping and will
* insert a 1:1 mapping in place of
* the user-mode pages to ensure predictable results
* This function takes care of flushing the caches
* and flushing the TLB.
*/
setup_mm_for_reboot();
msm_proc_comm(PCOM_RESET_CHIP, &restart_reason, 0);
for (;;)
;
}
static int __init msm_rq_stats_init(void)
{
int cpu = 0;
struct cpufreq_policy cpu_policy;
struct cpu_load_data *pcpu = &per_cpu(cpuload, cpu);
cpufreq_get_policy(&cpu_policy, cpu);
pcpu->policy_max = cpu_policy.max;
pcpu->cur_freq = acpuclk_get_rate(cpu);
cpumask_copy(pcpu->related_cpus, cpu_policy.cpus);
return 0;
}
int acpuclk_set_rate(int cpu, unsigned long rate, enum setrate_reason reason)
{
int ret;
if (!acpuclk_data->set_rate)
return 0;
trace_cpu_frequency_switch_start(acpuclk_get_rate(cpu), rate, cpu);
ret = acpuclk_data->set_rate(cpu, rate, reason);
if (!ret) {
trace_cpu_frequency_switch_end(cpu);
trace_cpu_frequency(rate, cpu);
}
return ret;
}
static ssize_t pm_status_show(struct kobject *kobj, struct kobj_attribute *attr,
char *buf)
{
char *s = buf;
unsigned long rate; // khz
int cpu;
// show CPU clocks
for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
s += sprintf(s, "APPS[%d]:", cpu);
if (cpu_online(cpu)) {
rate = acpuclk_get_rate(cpu); // khz
s += sprintf(s, "(%3lu MHz); \n", rate / 1000);
} else {
s += sprintf(s, "sleep; \n");
}
}
s += wakelock_dump_info(s);
return (s - buf);
}
unsigned long acpuclk_wait_for_irq(void)
{
int ret = acpuclk_get_rate(smp_processor_id());
acpuclk_set_rate(smp_processor_id(), WAIT_FOR_IRQ_KHZ, SETRATE_SWFI);
return ret;
}
unsigned long acpuclk_power_collapse(void)
{
int ret = acpuclk_get_rate(smp_processor_id());
acpuclk_set_rate(smp_processor_id(), POWER_COLLAPSE_KHZ, SETRATE_PC);
return ret;
}
void count_cpu_time(void){
if (unlikely(debug_cpu_usage_enable == 1 && (1000*(jiffies_64 - Last_checked_jiffies)/HZ >= CPU_USAGE_CHECK_INTERVAL_MS)))
{
struct task_struct * p = current;
struct pt_regs *regs = get_irq_regs();
/*Kernel-SC-add-cpuFreq-info-01+[*/
unsigned long cpu_freq = acpuclk_get_rate(smp_processor_id());
unsigned long cpu_curr_freq = (unsigned long) cpufreq_quick_get(smp_processor_id());
/*Kernel-SC-add-cpuFreq-info-01+]*/
if (likely(p != 0))
{
if (regs != 0)
{
if (regs->ARM_pc <= TASK_SIZE) /* User space */
{
struct mm_struct *mm = p->mm;
struct vm_area_struct *vma;
struct file *map_file = NULL;
/* Parse vma information */
vma = find_vma(mm, regs->ARM_pc);
if (vma != NULL)
{
map_file = vma->vm_file;
if (map_file) /* memory-mapped file */
{
printk(KERN_INFO "[CPU] %3ld%% LR=0x%08lx PC=0x%08lx [U][%4d][%s][%s+0x%lx] CPUFreq=%lu CurrFreq=%lu\r\n",
get_cpu_usage(),
regs->ARM_lr,
regs->ARM_pc,
(unsigned int) p->pid,
p->comm,
map_file->f_path.dentry->d_iname,
regs->ARM_pc - vma->vm_start,
cpu_freq,
cpu_curr_freq);/*Kernel-SC-add-cpuFreq-info-01**/
}
else
{
const char *name = arch_vma_name(vma);
if (!name)
{
if (mm)
{
if (vma->vm_start <= mm->start_brk &&
vma->vm_end >= mm->brk)
{
name = "heap";
}
else if (vma->vm_start <= mm->start_stack &&
vma->vm_end >= mm->start_stack)
{
name = "stack";
}
}
else
{
name = "vdso";
}
}
printk(KERN_INFO "[CPU] %3ld%% LR=0x%08lx PC=0x%08lx [U][%4d][%s][%s] CPUFreq=%lu CurrFreq=%lu\r\n",
get_cpu_usage(),
regs->ARM_lr,
regs->ARM_pc,
(unsigned int) p->pid,
p->comm,
name,
cpu_freq,
cpu_curr_freq);/*Kernel-SC-add-cpuFreq-info-01**/
}
}
}
else /* Kernel space */
{
printk(KERN_INFO "[CPU] %3ld%% LR=0x%08lx PC=0x%08lx [K][%4d][%s] CPUFreq=%lu CurrFreq=%lu",
get_cpu_usage(),
regs->ARM_lr,
regs->ARM_pc,
(unsigned int) p->pid,
p->comm,
cpu_freq,
cpu_curr_freq);/*Kernel-SC-add-cpuFreq-info-01**/
#ifdef CONFIG_KALLSYMS
print_symbol("[%s]\r\n", regs->ARM_pc);
#else
printk("\r\n");
#endif
}
}
else /* Can't get PC & RA address */
{
printk(KERN_INFO "[CPU] %3ld%% [%s] CPUFreq=%lu CurrFreq=%lu\r\n", get_cpu_usage(), p->comm, cpu_freq, cpu_curr_freq);/*Kernel-SC-add-cpuFreq-info-01**/
}
}
else /* Can't get process information */
{
printk(KERN_INFO "[CPU] %3ld%% ERROR: p=0x%08lx, regs=0x%08lx CPUFreq=%lu CurrFreq=%lu\r\n", get_cpu_usage(), (long)p, (long)regs, cpu_freq, cpu_curr_freq);/*Kernel-SC-add-cpuFreq-info-01**/
}
}
}