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-rw-r--r--arch/arm/mach-omap2/pm-debug.c372
1 files changed, 1 insertions, 371 deletions
diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c
index e01da45c0537..4411163e012d 100644
--- a/arch/arm/mach-omap2/pm-debug.c
+++ b/arch/arm/mach-omap2/pm-debug.c
@@ -38,155 +38,12 @@
38#include "prm2xxx_3xxx.h" 38#include "prm2xxx_3xxx.h"
39#include "pm.h" 39#include "pm.h"
40 40
41int omap2_pm_debug;
42u32 enable_off_mode; 41u32 enable_off_mode;
43u32 sleep_while_idle;
44u32 wakeup_timer_seconds;
45u32 wakeup_timer_milliseconds;
46
47#define DUMP_PRM_MOD_REG(mod, reg) \
48 regs[reg_count].name = #mod "." #reg; \
49 regs[reg_count++].val = omap2_prm_read_mod_reg(mod, reg)
50#define DUMP_CM_MOD_REG(mod, reg) \
51 regs[reg_count].name = #mod "." #reg; \
52 regs[reg_count++].val = omap2_cm_read_mod_reg(mod, reg)
53#define DUMP_PRM_REG(reg) \
54 regs[reg_count].name = #reg; \
55 regs[reg_count++].val = __raw_readl(reg)
56#define DUMP_CM_REG(reg) \
57 regs[reg_count].name = #reg; \
58 regs[reg_count++].val = __raw_readl(reg)
59#define DUMP_INTC_REG(reg, off) \
60 regs[reg_count].name = #reg; \
61 regs[reg_count++].val = \
62 __raw_readl(OMAP2_L4_IO_ADDRESS(0x480fe000 + (off)))
63
64void omap2_pm_dump(int mode, int resume, unsigned int us)
65{
66 struct reg {
67 const char *name;
68 u32 val;
69 } regs[32];
70 int reg_count = 0, i;
71 const char *s1 = NULL, *s2 = NULL;
72
73 if (!resume) {
74#if 0
75 /* MPU */
76 DUMP_PRM_MOD_REG(OCP_MOD, OMAP2_PRM_IRQENABLE_MPU_OFFSET);
77 DUMP_CM_MOD_REG(MPU_MOD, OMAP2_CM_CLKSTCTRL);
78 DUMP_PRM_MOD_REG(MPU_MOD, OMAP2_PM_PWSTCTRL);
79 DUMP_PRM_MOD_REG(MPU_MOD, OMAP2_PM_PWSTST);
80 DUMP_PRM_MOD_REG(MPU_MOD, PM_WKDEP);
81#endif
82#if 0
83 /* INTC */
84 DUMP_INTC_REG(INTC_MIR0, 0x0084);
85 DUMP_INTC_REG(INTC_MIR1, 0x00a4);
86 DUMP_INTC_REG(INTC_MIR2, 0x00c4);
87#endif
88#if 0
89 DUMP_CM_MOD_REG(CORE_MOD, CM_FCLKEN1);
90 if (cpu_is_omap24xx()) {
91 DUMP_CM_MOD_REG(CORE_MOD, OMAP24XX_CM_FCLKEN2);
92 DUMP_PRM_MOD_REG(OMAP24XX_GR_MOD,
93 OMAP2_PRCM_CLKEMUL_CTRL_OFFSET);
94 DUMP_PRM_MOD_REG(OMAP24XX_GR_MOD,
95 OMAP2_PRCM_CLKSRC_CTRL_OFFSET);
96 }
97 DUMP_CM_MOD_REG(WKUP_MOD, CM_FCLKEN);
98 DUMP_CM_MOD_REG(CORE_MOD, CM_ICLKEN1);
99 DUMP_CM_MOD_REG(CORE_MOD, CM_ICLKEN2);
100 DUMP_CM_MOD_REG(WKUP_MOD, CM_ICLKEN);
101 DUMP_CM_MOD_REG(PLL_MOD, CM_CLKEN);
102 DUMP_CM_MOD_REG(PLL_MOD, CM_AUTOIDLE);
103 DUMP_PRM_MOD_REG(CORE_MOD, OMAP2_PM_PWSTST);
104#endif
105#if 0
106 /* DSP */
107 if (cpu_is_omap24xx()) {
108 DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_FCLKEN);
109 DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_ICLKEN);
110 DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_IDLEST);
111 DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_AUTOIDLE);
112 DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_CLKSEL);
113 DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, OMAP2_CM_CLKSTCTRL);
114 DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, OMAP2_RM_RSTCTRL);
115 DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, OMAP2_RM_RSTST);
116 DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, OMAP2_PM_PWSTCTRL);
117 DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, OMAP2_PM_PWSTST);
118 }
119#endif
120 } else {
121 DUMP_PRM_MOD_REG(CORE_MOD, PM_WKST1);
122 if (cpu_is_omap24xx())
123 DUMP_PRM_MOD_REG(CORE_MOD, OMAP24XX_PM_WKST2);
124 DUMP_PRM_MOD_REG(WKUP_MOD, PM_WKST);
125 DUMP_PRM_MOD_REG(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET);
126#if 1
127 DUMP_INTC_REG(INTC_PENDING_IRQ0, 0x0098);
128 DUMP_INTC_REG(INTC_PENDING_IRQ1, 0x00b8);
129 DUMP_INTC_REG(INTC_PENDING_IRQ2, 0x00d8);
130#endif
131 }
132
133 switch (mode) {
134 case 0:
135 s1 = "full";
136 s2 = "retention";
137 break;
138 case 1:
139 s1 = "MPU";
140 s2 = "retention";
141 break;
142 case 2:
143 s1 = "MPU";
144 s2 = "idle";
145 break;
146 }
147
148 if (!resume)
149#ifdef CONFIG_NO_HZ
150 printk(KERN_INFO
151 "--- Going to %s %s (next timer after %u ms)\n", s1, s2,
152 jiffies_to_msecs(get_next_timer_interrupt(jiffies) -
153 jiffies));
154#else
155 printk(KERN_INFO "--- Going to %s %s\n", s1, s2);
156#endif
157 else
158 printk(KERN_INFO "--- Woke up (slept for %u.%03u ms)\n",
159 us / 1000, us % 1000);
160
161 for (i = 0; i < reg_count; i++)
162 printk(KERN_INFO "%-20s: 0x%08x\n", regs[i].name, regs[i].val);
163}
164
165void omap2_pm_wakeup_on_timer(u32 seconds, u32 milliseconds)
166{
167 u32 tick_rate, cycles;
168
169 if (!seconds && !milliseconds)
170 return;
171
172 tick_rate = clk_get_rate(omap_dm_timer_get_fclk(gptimer_wakeup));
173 cycles = tick_rate * seconds + tick_rate * milliseconds / 1000;
174 omap_dm_timer_stop(gptimer_wakeup);
175 omap_dm_timer_set_load_start(gptimer_wakeup, 0, 0xffffffff - cycles);
176
177 pr_info("PM: Resume timer in %u.%03u secs"
178 " (%d ticks at %d ticks/sec.)\n",
179 seconds, milliseconds, cycles, tick_rate);
180}
181 42
182#ifdef CONFIG_DEBUG_FS 43#ifdef CONFIG_DEBUG_FS
183#include <linux/debugfs.h> 44#include <linux/debugfs.h>
184#include <linux/seq_file.h> 45#include <linux/seq_file.h>
185 46
186static void pm_dbg_regset_store(u32 *ptr);
187
188static struct dentry *pm_dbg_dir;
189
190static int pm_dbg_init_done; 47static int pm_dbg_init_done;
191 48
192static int pm_dbg_init(void); 49static int pm_dbg_init(void);
@@ -196,160 +53,6 @@ enum {
196 DEBUG_FILE_TIMERS, 53 DEBUG_FILE_TIMERS,
197}; 54};
198 55
199struct pm_module_def {
200 char name[8]; /* Name of the module */
201 short type; /* CM or PRM */
202 unsigned short offset;
203 int low; /* First register address on this module */
204 int high; /* Last register address on this module */
205};
206
207#define MOD_CM 0
208#define MOD_PRM 1
209
210static const struct pm_module_def *pm_dbg_reg_modules;
211static const struct pm_module_def omap3_pm_reg_modules[] = {
212 { "IVA2", MOD_CM, OMAP3430_IVA2_MOD, 0, 0x4c },
213 { "OCP", MOD_CM, OCP_MOD, 0, 0x10 },
214 { "MPU", MOD_CM, MPU_MOD, 4, 0x4c },
215 { "CORE", MOD_CM, CORE_MOD, 0, 0x4c },
216 { "SGX", MOD_CM, OMAP3430ES2_SGX_MOD, 0, 0x4c },
217 { "WKUP", MOD_CM, WKUP_MOD, 0, 0x40 },
218 { "CCR", MOD_CM, PLL_MOD, 0, 0x70 },
219 { "DSS", MOD_CM, OMAP3430_DSS_MOD, 0, 0x4c },
220 { "CAM", MOD_CM, OMAP3430_CAM_MOD, 0, 0x4c },
221 { "PER", MOD_CM, OMAP3430_PER_MOD, 0, 0x4c },
222 { "EMU", MOD_CM, OMAP3430_EMU_MOD, 0x40, 0x54 },
223 { "NEON", MOD_CM, OMAP3430_NEON_MOD, 0x20, 0x48 },
224 { "USB", MOD_CM, OMAP3430ES2_USBHOST_MOD, 0, 0x4c },
225
226 { "IVA2", MOD_PRM, OMAP3430_IVA2_MOD, 0x50, 0xfc },
227 { "OCP", MOD_PRM, OCP_MOD, 4, 0x1c },
228 { "MPU", MOD_PRM, MPU_MOD, 0x58, 0xe8 },
229 { "CORE", MOD_PRM, CORE_MOD, 0x58, 0xf8 },
230 { "SGX", MOD_PRM, OMAP3430ES2_SGX_MOD, 0x58, 0xe8 },
231 { "WKUP", MOD_PRM, WKUP_MOD, 0xa0, 0xb0 },
232 { "CCR", MOD_PRM, PLL_MOD, 0x40, 0x70 },
233 { "DSS", MOD_PRM, OMAP3430_DSS_MOD, 0x58, 0xe8 },
234 { "CAM", MOD_PRM, OMAP3430_CAM_MOD, 0x58, 0xe8 },
235 { "PER", MOD_PRM, OMAP3430_PER_MOD, 0x58, 0xe8 },
236 { "EMU", MOD_PRM, OMAP3430_EMU_MOD, 0x58, 0xe4 },
237 { "GLBL", MOD_PRM, OMAP3430_GR_MOD, 0x20, 0xe4 },
238 { "NEON", MOD_PRM, OMAP3430_NEON_MOD, 0x58, 0xe8 },
239 { "USB", MOD_PRM, OMAP3430ES2_USBHOST_MOD, 0x58, 0xe8 },
240 { "", 0, 0, 0, 0 },
241};
242
243#define PM_DBG_MAX_REG_SETS 4
244
245static void *pm_dbg_reg_set[PM_DBG_MAX_REG_SETS];
246
247static int pm_dbg_get_regset_size(void)
248{
249 static int regset_size;
250
251 if (regset_size == 0) {
252 int i = 0;
253
254 while (pm_dbg_reg_modules[i].name[0] != 0) {
255 regset_size += pm_dbg_reg_modules[i].high +
256 4 - pm_dbg_reg_modules[i].low;
257 i++;
258 }
259 }
260 return regset_size;
261}
262
263static int pm_dbg_show_regs(struct seq_file *s, void *unused)
264{
265 int i, j;
266 unsigned long val;
267 int reg_set = (int)s->private;
268 u32 *ptr;
269 void *store = NULL;
270 int regs;
271 int linefeed;
272
273 if (reg_set == 0) {
274 store = kmalloc(pm_dbg_get_regset_size(), GFP_KERNEL);
275 ptr = store;
276 pm_dbg_regset_store(ptr);
277 } else {
278 ptr = pm_dbg_reg_set[reg_set - 1];
279 }
280
281 i = 0;
282
283 while (pm_dbg_reg_modules[i].name[0] != 0) {
284 regs = 0;
285 linefeed = 0;
286 if (pm_dbg_reg_modules[i].type == MOD_CM)
287 seq_printf(s, "MOD: CM_%s (%08x)\n",
288 pm_dbg_reg_modules[i].name,
289 (u32)(OMAP3430_CM_BASE +
290 pm_dbg_reg_modules[i].offset));
291 else
292 seq_printf(s, "MOD: PRM_%s (%08x)\n",
293 pm_dbg_reg_modules[i].name,
294 (u32)(OMAP3430_PRM_BASE +
295 pm_dbg_reg_modules[i].offset));
296
297 for (j = pm_dbg_reg_modules[i].low;
298 j <= pm_dbg_reg_modules[i].high; j += 4) {
299 val = *(ptr++);
300 if (val != 0) {
301 regs++;
302 if (linefeed) {
303 seq_printf(s, "\n");
304 linefeed = 0;
305 }
306 seq_printf(s, " %02x => %08lx", j, val);
307 if (regs % 4 == 0)
308 linefeed = 1;
309 }
310 }
311 seq_printf(s, "\n");
312 i++;
313 }
314
315 if (store != NULL)
316 kfree(store);
317
318 return 0;
319}
320
321static void pm_dbg_regset_store(u32 *ptr)
322{
323 int i, j;
324 u32 val;
325
326 i = 0;
327
328 while (pm_dbg_reg_modules[i].name[0] != 0) {
329 for (j = pm_dbg_reg_modules[i].low;
330 j <= pm_dbg_reg_modules[i].high; j += 4) {
331 if (pm_dbg_reg_modules[i].type == MOD_CM)
332 val = omap2_cm_read_mod_reg(
333 pm_dbg_reg_modules[i].offset, j);
334 else
335 val = omap2_prm_read_mod_reg(
336 pm_dbg_reg_modules[i].offset, j);
337 *(ptr++) = val;
338 }
339 i++;
340 }
341}
342
343int pm_dbg_regset_save(int reg_set)
344{
345 if (pm_dbg_reg_set[reg_set-1] == NULL)
346 return -EINVAL;
347
348 pm_dbg_regset_store(pm_dbg_reg_set[reg_set-1]);
349
350 return 0;
351}
352
353static const char pwrdm_state_names[][PWRDM_MAX_PWRSTS] = { 56static const char pwrdm_state_names[][PWRDM_MAX_PWRSTS] = {
354 "OFF", 57 "OFF",
355 "RET", 58 "RET",
@@ -469,11 +172,6 @@ static int pm_dbg_open(struct inode *inode, struct file *file)
469 }; 172 };
470} 173}
471 174
472static int pm_dbg_reg_open(struct inode *inode, struct file *file)
473{
474 return single_open(file, pm_dbg_show_regs, inode->i_private);
475}
476
477static const struct file_operations debug_fops = { 175static const struct file_operations debug_fops = {
478 .open = pm_dbg_open, 176 .open = pm_dbg_open,
479 .read = seq_read, 177 .read = seq_read,
@@ -481,40 +179,6 @@ static const struct file_operations debug_fops = {
481 .release = single_release, 179 .release = single_release,
482}; 180};
483 181
484static const struct file_operations debug_reg_fops = {
485 .open = pm_dbg_reg_open,
486 .read = seq_read,
487 .llseek = seq_lseek,
488 .release = single_release,
489};
490
491int pm_dbg_regset_init(int reg_set)
492{
493 char name[2];
494
495 if (!pm_dbg_init_done)
496 pm_dbg_init();
497
498 if (reg_set < 1 || reg_set > PM_DBG_MAX_REG_SETS ||
499 pm_dbg_reg_set[reg_set-1] != NULL)
500 return -EINVAL;
501
502 pm_dbg_reg_set[reg_set-1] =
503 kmalloc(pm_dbg_get_regset_size(), GFP_KERNEL);
504
505 if (pm_dbg_reg_set[reg_set-1] == NULL)
506 return -ENOMEM;
507
508 if (pm_dbg_dir != NULL) {
509 sprintf(name, "%d", reg_set);
510
511 (void) debugfs_create_file(name, S_IRUGO,
512 pm_dbg_dir, (void *)reg_set, &debug_reg_fops);
513 }
514
515 return 0;
516}
517
518static int pwrdm_suspend_get(void *data, u64 *val) 182static int pwrdm_suspend_get(void *data, u64 *val)
519{ 183{
520 int ret = -EINVAL; 184 int ret = -EINVAL;
@@ -576,9 +240,6 @@ static int option_set(void *data, u64 val)
576{ 240{
577 u32 *option = data; 241 u32 *option = data;
578 242
579 if (option == &wakeup_timer_milliseconds && val >= 1000)
580 return -EINVAL;
581
582 *option = val; 243 *option = val;
583 244
584 if (option == &enable_off_mode) { 245 if (option == &enable_off_mode) {
@@ -595,22 +256,13 @@ static int option_set(void *data, u64 val)
595 256
596DEFINE_SIMPLE_ATTRIBUTE(pm_dbg_option_fops, option_get, option_set, "%llu\n"); 257DEFINE_SIMPLE_ATTRIBUTE(pm_dbg_option_fops, option_get, option_set, "%llu\n");
597 258
598static int pm_dbg_init(void) 259static int __init pm_dbg_init(void)
599{ 260{
600 int i;
601 struct dentry *d; 261 struct dentry *d;
602 char name[2];
603 262
604 if (pm_dbg_init_done) 263 if (pm_dbg_init_done)
605 return 0; 264 return 0;
606 265
607 if (cpu_is_omap34xx())
608 pm_dbg_reg_modules = omap3_pm_reg_modules;
609 else {
610 printk(KERN_ERR "%s: only OMAP3 supported\n", __func__);
611 return -ENODEV;
612 }
613
614 d = debugfs_create_dir("pm_debug", NULL); 266 d = debugfs_create_dir("pm_debug", NULL);
615 if (IS_ERR(d)) 267 if (IS_ERR(d))
616 return PTR_ERR(d); 268 return PTR_ERR(d);
@@ -622,30 +274,8 @@ static int pm_dbg_init(void)
622 274
623 pwrdm_for_each(pwrdms_setup, (void *)d); 275 pwrdm_for_each(pwrdms_setup, (void *)d);
624 276
625 pm_dbg_dir = debugfs_create_dir("registers", d);
626 if (IS_ERR(pm_dbg_dir))
627 return PTR_ERR(pm_dbg_dir);
628
629 (void) debugfs_create_file("current", S_IRUGO,
630 pm_dbg_dir, (void *)0, &debug_reg_fops);
631
632 for (i = 0; i < PM_DBG_MAX_REG_SETS; i++)
633 if (pm_dbg_reg_set[i] != NULL) {
634 sprintf(name, "%d", i+1);
635 (void) debugfs_create_file(name, S_IRUGO,
636 pm_dbg_dir, (void *)(i+1), &debug_reg_fops);
637
638 }
639
640 (void) debugfs_create_file("enable_off_mode", S_IRUGO | S_IWUSR, d, 277 (void) debugfs_create_file("enable_off_mode", S_IRUGO | S_IWUSR, d,
641 &enable_off_mode, &pm_dbg_option_fops); 278 &enable_off_mode, &pm_dbg_option_fops);
642 (void) debugfs_create_file("sleep_while_idle", S_IRUGO | S_IWUSR, d,
643 &sleep_while_idle, &pm_dbg_option_fops);
644 (void) debugfs_create_file("wakeup_timer_seconds", S_IRUGO | S_IWUSR, d,
645 &wakeup_timer_seconds, &pm_dbg_option_fops);
646 (void) debugfs_create_file("wakeup_timer_milliseconds",
647 S_IRUGO | S_IWUSR, d, &wakeup_timer_milliseconds,
648 &pm_dbg_option_fops);
649 pm_dbg_init_done = 1; 279 pm_dbg_init_done = 1;
650 280
651 return 0; 281 return 0;
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-11 10:47:17 -0400