Release 4.11 arch/arm/mach-omap2/pm-debug.c
/*
* OMAP Power Management debug routines
*
* Copyright (C) 2005 Texas Instruments, Inc.
* Copyright (C) 2006-2008 Nokia Corporation
*
* Written by:
* Richard Woodruff <r-woodruff2@ti.com>
* Tony Lindgren
* Juha Yrjola
* Amit Kucheria <amit.kucheria@nokia.com>
* Igor Stoppa <igor.stoppa@nokia.com>
* Jouni Hogander
*
* Based on pm.c for omap2
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/sched/clock.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/slab.h>
#include "clock.h"
#include "powerdomain.h"
#include "clockdomain.h"
#include "omap-pm.h"
#include "soc.h"
#include "cm2xxx_3xxx.h"
#include "prm2xxx_3xxx.h"
#include "pm.h"
u32 enable_off_mode;
#ifdef CONFIG_DEBUG_FS
#include <linux/debugfs.h>
#include <linux/seq_file.h>
static int pm_dbg_init_done;
static int pm_dbg_init(void);
enum {
DEBUG_FILE_COUNTERS = 0,
DEBUG_FILE_TIMERS,
};
static const char pwrdm_state_names[][PWRDM_MAX_PWRSTS] = {
"OFF",
"RET",
"INA",
"ON"
};
void pm_dbg_update_time(struct powerdomain *pwrdm, int prev)
{
s64 t;
if (!pm_dbg_init_done)
return ;
/* Update timer for previous state */
t = sched_clock();
pwrdm->state_timer[prev] += t - pwrdm->timer;
pwrdm->timer = t;
}
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static int clkdm_dbg_show_counter(struct clockdomain *clkdm, void *user)
{
struct seq_file *s = (struct seq_file *)user;
if (strcmp(clkdm->name, "emu_clkdm") == 0 ||
strcmp(clkdm->name, "wkup_clkdm") == 0 ||
strncmp(clkdm->name, "dpll", 4) == 0)
return 0;
seq_printf(s, "%s->%s (%d)\n", clkdm->name, clkdm->pwrdm.ptr->name,
clkdm->usecount);
return 0;
}
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static int pwrdm_dbg_show_counter(struct powerdomain *pwrdm, void *user)
{
struct seq_file *s = (struct seq_file *)user;
int i;
if (strcmp(pwrdm->name, "emu_pwrdm") == 0 ||
strcmp(pwrdm->name, "wkup_pwrdm") == 0 ||
strncmp(pwrdm->name, "dpll", 4) == 0)
return 0;
if (pwrdm->state != pwrdm_read_pwrst(pwrdm))
printk(KERN_ERR "pwrdm state mismatch(%s) %d != %d\n",
pwrdm->name, pwrdm->state, pwrdm_read_pwrst(pwrdm));
seq_printf(s, "%s (%s)", pwrdm->name,
pwrdm_state_names[pwrdm->state]);
for (i = 0; i < PWRDM_MAX_PWRSTS; i++)
seq_printf(s, ",%s:%d", pwrdm_state_names[i],
pwrdm->state_counter[i]);
seq_printf(s, ",RET-LOGIC-OFF:%d", pwrdm->ret_logic_off_counter);
for (i = 0; i < pwrdm->banks; i++)
seq_printf(s, ",RET-MEMBANK%d-OFF:%d", i + 1,
pwrdm->ret_mem_off_counter[i]);
seq_putc(s, '\n');
return 0;
}
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| Paul Walmsley | 1 | 0.49% | 1 | 20.00% |
| Total | 204 | 100.00% | 5 | 100.00% |
static int pwrdm_dbg_show_timer(struct powerdomain *pwrdm, void *user)
{
struct seq_file *s = (struct seq_file *)user;
int i;
if (strcmp(pwrdm->name, "emu_pwrdm") == 0 ||
strcmp(pwrdm->name, "wkup_pwrdm") == 0 ||
strncmp(pwrdm->name, "dpll", 4) == 0)
return 0;
pwrdm_state_switch(pwrdm);
seq_printf(s, "%s (%s)", pwrdm->name,
pwrdm_state_names[pwrdm->state]);
for (i = 0; i < 4; i++)
seq_printf(s, ",%s:%lld", pwrdm_state_names[i],
pwrdm->state_timer[i]);
seq_putc(s, '\n');
return 0;
}
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| Peter 'p2' De Schrijver | 133 | 98.52% | 1 | 50.00% |
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| Total | 135 | 100.00% | 2 | 100.00% |
static int pm_dbg_show_counters(struct seq_file *s, void *unused)
{
pwrdm_for_each(pwrdm_dbg_show_counter, s);
clkdm_for_each(clkdm_dbg_show_counter, s);
return 0;
}
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| Peter 'p2' De Schrijver | 32 | 100.00% | 1 | 100.00% |
| Total | 32 | 100.00% | 1 | 100.00% |
static int pm_dbg_show_timers(struct seq_file *s, void *unused)
{
pwrdm_for_each(pwrdm_dbg_show_timer, s);
return 0;
}
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| Peter 'p2' De Schrijver | 25 | 100.00% | 1 | 100.00% |
| Total | 25 | 100.00% | 1 | 100.00% |
static int pm_dbg_open(struct inode *inode, struct file *file)
{
switch ((int)inode->i_private) {
case DEBUG_FILE_COUNTERS:
return single_open(file, pm_dbg_show_counters,
&inode->i_private);
case DEBUG_FILE_TIMERS:
default:
return single_open(file, pm_dbg_show_timers,
&inode->i_private);
}
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Peter 'p2' De Schrijver | 45 | 75.00% | 1 | 33.33% |
| Kevin Hilman | 10 | 16.67% | 1 | 33.33% |
| Tero Kristo | 5 | 8.33% | 1 | 33.33% |
| Total | 60 | 100.00% | 3 | 100.00% |
static const struct file_operations debug_fops = {
.open = pm_dbg_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int pwrdm_suspend_get(void *data, u64 *val)
{
int ret = -EINVAL;
if (cpu_is_omap34xx())
ret = omap3_pm_get_suspend_state((struct powerdomain *)data);
*val = ret;
if (ret >= 0)
return 0;
return *val;
}
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| Tero Kristo | 37 | 67.27% | 1 | 33.33% |
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| Total | 55 | 100.00% | 3 | 100.00% |
static int pwrdm_suspend_set(void *data, u64 val)
{
if (cpu_is_omap34xx())
return omap3_pm_set_suspend_state(
(struct powerdomain *)data, (int)val);
return -EINVAL;
}
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DEFINE_SIMPLE_ATTRIBUTE(pwrdm_suspend_fops, pwrdm_suspend_get,
pwrdm_suspend_set, "%llu\n");
static int __init pwrdms_setup(struct powerdomain *pwrdm, void *dir)
{
int i;
s64 t;
struct dentry *d;
t = sched_clock();
for (i = 0; i < 4; i++)
pwrdm->state_timer[i] = 0;
pwrdm->timer = t;
if (strncmp(pwrdm->name, "dpll", 4) == 0)
return 0;
d = debugfs_create_dir(pwrdm->name, (struct dentry *)dir);
if (d)
(void) debugfs_create_file("suspend", S_IRUGO|S_IWUSR, d,
(void *)pwrdm, &pwrdm_suspend_fops);
return 0;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Tero Kristo | 63 | 50.81% | 1 | 33.33% |
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| Jean Pihet | 4 | 3.23% | 1 | 33.33% |
| Total | 124 | 100.00% | 3 | 100.00% |
static int option_get(void *data, u64 *val)
{
u32 *option = data;
*val = *option;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kevin Hilman | 29 | 100.00% | 1 | 100.00% |
| Total | 29 | 100.00% | 1 | 100.00% |
static int option_set(void *data, u64 val)
{
u32 *option = data;
*option = val;
if (option == &enable_off_mode) {
if (val)
omap_pm_enable_off_mode();
else
omap_pm_disable_off_mode();
if (cpu_is_omap34xx())
omap3_pm_off_mode_enable(val);
}
return 0;
}
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DEFINE_SIMPLE_ATTRIBUTE(pm_dbg_option_fops, option_get, option_set, "%llu\n");
static int __init pm_dbg_init(void)
{
struct dentry *d;
if (pm_dbg_init_done)
return 0;
d = debugfs_create_dir("pm_debug", NULL);
if (!d)
return -EINVAL;
(void) debugfs_create_file("count", S_IRUGO,
d, (void *)DEBUG_FILE_COUNTERS, &debug_fops);
(void) debugfs_create_file("time", S_IRUGO,
d, (void *)DEBUG_FILE_TIMERS, &debug_fops);
pwrdm_for_each(pwrdms_setup, (void *)d);
(void) debugfs_create_file("enable_off_mode", S_IRUGO | S_IWUSR, d,
&enable_off_mode, &pm_dbg_option_fops);
pm_dbg_init_done = 1;
return 0;
}
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| Peter 'p2' De Schrijver | 83 | 69.75% | 1 | 14.29% |
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| Vasiliy Kulikov | 1 | 0.84% | 1 | 14.29% |
| Paul Walmsley | 1 | 0.84% | 1 | 14.29% |
| Total | 119 | 100.00% | 7 | 100.00% |
omap_arch_initcall(pm_dbg_init);
#endif
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| Kevin Hilman | 157 | 13.36% | 4 | 15.38% |
| Thara Gopinath | 68 | 5.79% | 2 | 7.69% |
| Roel Kluin | 10 | 0.85% | 1 | 3.85% |
| Paul Walmsley | 9 | 0.77% | 7 | 26.92% |
| Tony Lindgren | 5 | 0.43% | 3 | 11.54% |
| Jean Pihet | 4 | 0.34% | 1 | 3.85% |
| SF Markus Elfring | 4 | 0.34% | 1 | 3.85% |
| Tejun Heo | 3 | 0.26% | 1 | 3.85% |
| Ingo Molnar | 3 | 0.26% | 1 | 3.85% |
| Russell King | 3 | 0.26% | 1 | 3.85% |
| Vasiliy Kulikov | 1 | 0.09% | 1 | 3.85% |
| Total | 1175 | 100.00% | 26 | 100.00% |
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