Kevin Hilman | 8bd2294 | 2009-05-28 10:56:16 -0700 | [diff] [blame] | 1 | /* |
| 2 | * OMAP Power Management debug routines |
| 3 | * |
| 4 | * Copyright (C) 2005 Texas Instruments, Inc. |
| 5 | * Copyright (C) 2006-2008 Nokia Corporation |
| 6 | * |
| 7 | * Written by: |
| 8 | * Richard Woodruff <r-woodruff2@ti.com> |
| 9 | * Tony Lindgren |
| 10 | * Juha Yrjola |
| 11 | * Amit Kucheria <amit.kucheria@nokia.com> |
| 12 | * Igor Stoppa <igor.stoppa@nokia.com> |
| 13 | * Jouni Hogander |
| 14 | * |
| 15 | * Based on pm.c for omap2 |
| 16 | * |
| 17 | * This program is free software; you can redistribute it and/or modify |
| 18 | * it under the terms of the GNU General Public License version 2 as |
| 19 | * published by the Free Software Foundation. |
| 20 | */ |
| 21 | |
| 22 | #include <linux/kernel.h> |
Peter 'p2' De Schrijver | 331b93f | 2008-10-15 18:13:48 +0300 | [diff] [blame] | 23 | #include <linux/sched.h> |
Kevin Hilman | 8bd2294 | 2009-05-28 10:56:16 -0700 | [diff] [blame] | 24 | #include <linux/clk.h> |
| 25 | #include <linux/err.h> |
| 26 | #include <linux/io.h> |
Tero Kristo | 68d4778 | 2008-11-26 12:26:24 +0200 | [diff] [blame] | 27 | #include <linux/module.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 28 | #include <linux/slab.h> |
Kevin Hilman | 8bd2294 | 2009-05-28 10:56:16 -0700 | [diff] [blame] | 29 | |
Tony Lindgren | ce491cf | 2009-10-20 09:40:47 -0700 | [diff] [blame] | 30 | #include <plat/clock.h> |
| 31 | #include <plat/board.h> |
| 32 | #include <plat/powerdomain.h> |
| 33 | #include <plat/clockdomain.h> |
Kevin Hilman | 8bd2294 | 2009-05-28 10:56:16 -0700 | [diff] [blame] | 34 | |
| 35 | #include "prm.h" |
| 36 | #include "cm.h" |
| 37 | #include "pm.h" |
| 38 | |
| 39 | int omap2_pm_debug; |
| 40 | |
| 41 | #define DUMP_PRM_MOD_REG(mod, reg) \ |
| 42 | regs[reg_count].name = #mod "." #reg; \ |
| 43 | regs[reg_count++].val = prm_read_mod_reg(mod, reg) |
| 44 | #define DUMP_CM_MOD_REG(mod, reg) \ |
| 45 | regs[reg_count].name = #mod "." #reg; \ |
| 46 | regs[reg_count++].val = cm_read_mod_reg(mod, reg) |
| 47 | #define DUMP_PRM_REG(reg) \ |
| 48 | regs[reg_count].name = #reg; \ |
| 49 | regs[reg_count++].val = __raw_readl(reg) |
| 50 | #define DUMP_CM_REG(reg) \ |
| 51 | regs[reg_count].name = #reg; \ |
| 52 | regs[reg_count++].val = __raw_readl(reg) |
| 53 | #define DUMP_INTC_REG(reg, off) \ |
| 54 | regs[reg_count].name = #reg; \ |
Santosh Shilimkar | 233fd64 | 2009-10-19 15:25:31 -0700 | [diff] [blame] | 55 | regs[reg_count++].val = \ |
| 56 | __raw_readl(OMAP2_L4_IO_ADDRESS(0x480fe000 + (off))) |
Kevin Hilman | 8bd2294 | 2009-05-28 10:56:16 -0700 | [diff] [blame] | 57 | |
| 58 | void omap2_pm_dump(int mode, int resume, unsigned int us) |
| 59 | { |
| 60 | struct reg { |
| 61 | const char *name; |
| 62 | u32 val; |
| 63 | } regs[32]; |
| 64 | int reg_count = 0, i; |
| 65 | const char *s1 = NULL, *s2 = NULL; |
| 66 | |
| 67 | if (!resume) { |
| 68 | #if 0 |
| 69 | /* MPU */ |
| 70 | DUMP_PRM_MOD_REG(OCP_MOD, OMAP2_PRM_IRQENABLE_MPU_OFFSET); |
Abhijit Pagare | 84c0c39 | 2010-01-26 20:12:53 -0700 | [diff] [blame] | 71 | DUMP_CM_MOD_REG(MPU_MOD, OMAP2_CM_CLKSTCTRL); |
Abhijit Pagare | 3790300 | 2010-01-26 20:12:51 -0700 | [diff] [blame] | 72 | DUMP_PRM_MOD_REG(MPU_MOD, OMAP2_PM_PWSTCTRL); |
| 73 | DUMP_PRM_MOD_REG(MPU_MOD, OMAP2_PM_PWSTST); |
Kevin Hilman | 8bd2294 | 2009-05-28 10:56:16 -0700 | [diff] [blame] | 74 | DUMP_PRM_MOD_REG(MPU_MOD, PM_WKDEP); |
| 75 | #endif |
| 76 | #if 0 |
| 77 | /* INTC */ |
| 78 | DUMP_INTC_REG(INTC_MIR0, 0x0084); |
| 79 | DUMP_INTC_REG(INTC_MIR1, 0x00a4); |
| 80 | DUMP_INTC_REG(INTC_MIR2, 0x00c4); |
| 81 | #endif |
| 82 | #if 0 |
| 83 | DUMP_CM_MOD_REG(CORE_MOD, CM_FCLKEN1); |
| 84 | if (cpu_is_omap24xx()) { |
| 85 | DUMP_CM_MOD_REG(CORE_MOD, OMAP24XX_CM_FCLKEN2); |
| 86 | DUMP_PRM_MOD_REG(OMAP24XX_GR_MOD, |
| 87 | OMAP2_PRCM_CLKEMUL_CTRL_OFFSET); |
| 88 | DUMP_PRM_MOD_REG(OMAP24XX_GR_MOD, |
| 89 | OMAP2_PRCM_CLKSRC_CTRL_OFFSET); |
| 90 | } |
| 91 | DUMP_CM_MOD_REG(WKUP_MOD, CM_FCLKEN); |
| 92 | DUMP_CM_MOD_REG(CORE_MOD, CM_ICLKEN1); |
| 93 | DUMP_CM_MOD_REG(CORE_MOD, CM_ICLKEN2); |
| 94 | DUMP_CM_MOD_REG(WKUP_MOD, CM_ICLKEN); |
| 95 | DUMP_CM_MOD_REG(PLL_MOD, CM_CLKEN); |
| 96 | DUMP_CM_MOD_REG(PLL_MOD, CM_AUTOIDLE); |
Abhijit Pagare | 3790300 | 2010-01-26 20:12:51 -0700 | [diff] [blame] | 97 | DUMP_PRM_MOD_REG(CORE_MOD, OMAP2_PM_PWSTST); |
Kevin Hilman | 8bd2294 | 2009-05-28 10:56:16 -0700 | [diff] [blame] | 98 | #endif |
| 99 | #if 0 |
| 100 | /* DSP */ |
| 101 | if (cpu_is_omap24xx()) { |
| 102 | DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_FCLKEN); |
| 103 | DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_ICLKEN); |
| 104 | DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_IDLEST); |
| 105 | DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_AUTOIDLE); |
| 106 | DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_CLKSEL); |
Abhijit Pagare | 84c0c39 | 2010-01-26 20:12:53 -0700 | [diff] [blame] | 107 | DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, OMAP2_CM_CLKSTCTRL); |
Abhijit Pagare | 3790300 | 2010-01-26 20:12:51 -0700 | [diff] [blame] | 108 | DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, OMAP2_RM_RSTCTRL); |
| 109 | DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, OMAP2_RM_RSTST); |
| 110 | DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, OMAP2_PM_PWSTCTRL); |
| 111 | DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, OMAP2_PM_PWSTST); |
Kevin Hilman | 8bd2294 | 2009-05-28 10:56:16 -0700 | [diff] [blame] | 112 | } |
| 113 | #endif |
| 114 | } else { |
| 115 | DUMP_PRM_MOD_REG(CORE_MOD, PM_WKST1); |
| 116 | if (cpu_is_omap24xx()) |
| 117 | DUMP_PRM_MOD_REG(CORE_MOD, OMAP24XX_PM_WKST2); |
| 118 | DUMP_PRM_MOD_REG(WKUP_MOD, PM_WKST); |
| 119 | DUMP_PRM_MOD_REG(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET); |
| 120 | #if 1 |
| 121 | DUMP_INTC_REG(INTC_PENDING_IRQ0, 0x0098); |
| 122 | DUMP_INTC_REG(INTC_PENDING_IRQ1, 0x00b8); |
| 123 | DUMP_INTC_REG(INTC_PENDING_IRQ2, 0x00d8); |
| 124 | #endif |
| 125 | } |
| 126 | |
| 127 | switch (mode) { |
| 128 | case 0: |
| 129 | s1 = "full"; |
| 130 | s2 = "retention"; |
| 131 | break; |
| 132 | case 1: |
| 133 | s1 = "MPU"; |
| 134 | s2 = "retention"; |
| 135 | break; |
| 136 | case 2: |
| 137 | s1 = "MPU"; |
| 138 | s2 = "idle"; |
| 139 | break; |
| 140 | } |
| 141 | |
| 142 | if (!resume) |
| 143 | #ifdef CONFIG_NO_HZ |
| 144 | printk(KERN_INFO |
| 145 | "--- Going to %s %s (next timer after %u ms)\n", s1, s2, |
| 146 | jiffies_to_msecs(get_next_timer_interrupt(jiffies) - |
| 147 | jiffies)); |
| 148 | #else |
| 149 | printk(KERN_INFO "--- Going to %s %s\n", s1, s2); |
| 150 | #endif |
| 151 | else |
| 152 | printk(KERN_INFO "--- Woke up (slept for %u.%03u ms)\n", |
| 153 | us / 1000, us % 1000); |
| 154 | |
| 155 | for (i = 0; i < reg_count; i++) |
| 156 | printk(KERN_INFO "%-20s: 0x%08x\n", regs[i].name, regs[i].val); |
| 157 | } |
Peter 'p2' De Schrijver | 331b93f | 2008-10-15 18:13:48 +0300 | [diff] [blame] | 158 | |
| 159 | #ifdef CONFIG_DEBUG_FS |
| 160 | #include <linux/debugfs.h> |
| 161 | #include <linux/seq_file.h> |
| 162 | |
Tero Kristo | 2811d6b | 2008-10-29 13:31:24 +0200 | [diff] [blame] | 163 | static void pm_dbg_regset_store(u32 *ptr); |
| 164 | |
Peter 'p2' De Schrijver | 331b93f | 2008-10-15 18:13:48 +0300 | [diff] [blame] | 165 | struct dentry *pm_dbg_dir; |
| 166 | |
| 167 | static int pm_dbg_init_done; |
| 168 | |
Sergio Aguirre | 6b34f9d | 2010-01-14 11:01:15 -0600 | [diff] [blame] | 169 | static int __init pm_dbg_init(void); |
| 170 | |
Peter 'p2' De Schrijver | 331b93f | 2008-10-15 18:13:48 +0300 | [diff] [blame] | 171 | enum { |
| 172 | DEBUG_FILE_COUNTERS = 0, |
| 173 | DEBUG_FILE_TIMERS, |
| 174 | }; |
| 175 | |
Tero Kristo | 2811d6b | 2008-10-29 13:31:24 +0200 | [diff] [blame] | 176 | struct pm_module_def { |
| 177 | char name[8]; /* Name of the module */ |
| 178 | short type; /* CM or PRM */ |
| 179 | unsigned short offset; |
| 180 | int low; /* First register address on this module */ |
| 181 | int high; /* Last register address on this module */ |
| 182 | }; |
| 183 | |
| 184 | #define MOD_CM 0 |
| 185 | #define MOD_PRM 1 |
| 186 | |
| 187 | static const struct pm_module_def *pm_dbg_reg_modules; |
| 188 | static const struct pm_module_def omap3_pm_reg_modules[] = { |
| 189 | { "IVA2", MOD_CM, OMAP3430_IVA2_MOD, 0, 0x4c }, |
| 190 | { "OCP", MOD_CM, OCP_MOD, 0, 0x10 }, |
| 191 | { "MPU", MOD_CM, MPU_MOD, 4, 0x4c }, |
| 192 | { "CORE", MOD_CM, CORE_MOD, 0, 0x4c }, |
| 193 | { "SGX", MOD_CM, OMAP3430ES2_SGX_MOD, 0, 0x4c }, |
| 194 | { "WKUP", MOD_CM, WKUP_MOD, 0, 0x40 }, |
| 195 | { "CCR", MOD_CM, PLL_MOD, 0, 0x70 }, |
| 196 | { "DSS", MOD_CM, OMAP3430_DSS_MOD, 0, 0x4c }, |
| 197 | { "CAM", MOD_CM, OMAP3430_CAM_MOD, 0, 0x4c }, |
| 198 | { "PER", MOD_CM, OMAP3430_PER_MOD, 0, 0x4c }, |
| 199 | { "EMU", MOD_CM, OMAP3430_EMU_MOD, 0x40, 0x54 }, |
| 200 | { "NEON", MOD_CM, OMAP3430_NEON_MOD, 0x20, 0x48 }, |
| 201 | { "USB", MOD_CM, OMAP3430ES2_USBHOST_MOD, 0, 0x4c }, |
| 202 | |
| 203 | { "IVA2", MOD_PRM, OMAP3430_IVA2_MOD, 0x50, 0xfc }, |
| 204 | { "OCP", MOD_PRM, OCP_MOD, 4, 0x1c }, |
| 205 | { "MPU", MOD_PRM, MPU_MOD, 0x58, 0xe8 }, |
| 206 | { "CORE", MOD_PRM, CORE_MOD, 0x58, 0xf8 }, |
| 207 | { "SGX", MOD_PRM, OMAP3430ES2_SGX_MOD, 0x58, 0xe8 }, |
| 208 | { "WKUP", MOD_PRM, WKUP_MOD, 0xa0, 0xb0 }, |
| 209 | { "CCR", MOD_PRM, PLL_MOD, 0x40, 0x70 }, |
| 210 | { "DSS", MOD_PRM, OMAP3430_DSS_MOD, 0x58, 0xe8 }, |
| 211 | { "CAM", MOD_PRM, OMAP3430_CAM_MOD, 0x58, 0xe8 }, |
| 212 | { "PER", MOD_PRM, OMAP3430_PER_MOD, 0x58, 0xe8 }, |
| 213 | { "EMU", MOD_PRM, OMAP3430_EMU_MOD, 0x58, 0xe4 }, |
| 214 | { "GLBL", MOD_PRM, OMAP3430_GR_MOD, 0x20, 0xe4 }, |
| 215 | { "NEON", MOD_PRM, OMAP3430_NEON_MOD, 0x58, 0xe8 }, |
| 216 | { "USB", MOD_PRM, OMAP3430ES2_USBHOST_MOD, 0x58, 0xe8 }, |
| 217 | { "", 0, 0, 0, 0 }, |
| 218 | }; |
| 219 | |
| 220 | #define PM_DBG_MAX_REG_SETS 4 |
| 221 | |
| 222 | static void *pm_dbg_reg_set[PM_DBG_MAX_REG_SETS]; |
| 223 | |
| 224 | static int pm_dbg_get_regset_size(void) |
| 225 | { |
| 226 | static int regset_size; |
| 227 | |
| 228 | if (regset_size == 0) { |
| 229 | int i = 0; |
| 230 | |
| 231 | while (pm_dbg_reg_modules[i].name[0] != 0) { |
| 232 | regset_size += pm_dbg_reg_modules[i].high + |
| 233 | 4 - pm_dbg_reg_modules[i].low; |
| 234 | i++; |
| 235 | } |
| 236 | } |
| 237 | return regset_size; |
| 238 | } |
| 239 | |
| 240 | static int pm_dbg_show_regs(struct seq_file *s, void *unused) |
| 241 | { |
| 242 | int i, j; |
| 243 | unsigned long val; |
| 244 | int reg_set = (int)s->private; |
| 245 | u32 *ptr; |
| 246 | void *store = NULL; |
| 247 | int regs; |
| 248 | int linefeed; |
| 249 | |
| 250 | if (reg_set == 0) { |
| 251 | store = kmalloc(pm_dbg_get_regset_size(), GFP_KERNEL); |
| 252 | ptr = store; |
| 253 | pm_dbg_regset_store(ptr); |
| 254 | } else { |
| 255 | ptr = pm_dbg_reg_set[reg_set - 1]; |
| 256 | } |
| 257 | |
| 258 | i = 0; |
| 259 | |
| 260 | while (pm_dbg_reg_modules[i].name[0] != 0) { |
| 261 | regs = 0; |
| 262 | linefeed = 0; |
| 263 | if (pm_dbg_reg_modules[i].type == MOD_CM) |
| 264 | seq_printf(s, "MOD: CM_%s (%08x)\n", |
| 265 | pm_dbg_reg_modules[i].name, |
| 266 | (u32)(OMAP3430_CM_BASE + |
| 267 | pm_dbg_reg_modules[i].offset)); |
| 268 | else |
| 269 | seq_printf(s, "MOD: PRM_%s (%08x)\n", |
| 270 | pm_dbg_reg_modules[i].name, |
| 271 | (u32)(OMAP3430_PRM_BASE + |
| 272 | pm_dbg_reg_modules[i].offset)); |
| 273 | |
| 274 | for (j = pm_dbg_reg_modules[i].low; |
| 275 | j <= pm_dbg_reg_modules[i].high; j += 4) { |
| 276 | val = *(ptr++); |
| 277 | if (val != 0) { |
| 278 | regs++; |
| 279 | if (linefeed) { |
| 280 | seq_printf(s, "\n"); |
| 281 | linefeed = 0; |
| 282 | } |
| 283 | seq_printf(s, " %02x => %08lx", j, val); |
| 284 | if (regs % 4 == 0) |
| 285 | linefeed = 1; |
| 286 | } |
| 287 | } |
| 288 | seq_printf(s, "\n"); |
| 289 | i++; |
| 290 | } |
| 291 | |
| 292 | if (store != NULL) |
| 293 | kfree(store); |
| 294 | |
| 295 | return 0; |
| 296 | } |
| 297 | |
| 298 | static void pm_dbg_regset_store(u32 *ptr) |
| 299 | { |
| 300 | int i, j; |
| 301 | u32 val; |
| 302 | |
| 303 | i = 0; |
| 304 | |
| 305 | while (pm_dbg_reg_modules[i].name[0] != 0) { |
| 306 | for (j = pm_dbg_reg_modules[i].low; |
| 307 | j <= pm_dbg_reg_modules[i].high; j += 4) { |
| 308 | if (pm_dbg_reg_modules[i].type == MOD_CM) |
| 309 | val = cm_read_mod_reg( |
| 310 | pm_dbg_reg_modules[i].offset, j); |
| 311 | else |
| 312 | val = prm_read_mod_reg( |
| 313 | pm_dbg_reg_modules[i].offset, j); |
| 314 | *(ptr++) = val; |
| 315 | } |
| 316 | i++; |
| 317 | } |
| 318 | } |
| 319 | |
| 320 | int pm_dbg_regset_save(int reg_set) |
| 321 | { |
| 322 | if (pm_dbg_reg_set[reg_set-1] == NULL) |
| 323 | return -EINVAL; |
| 324 | |
| 325 | pm_dbg_regset_store(pm_dbg_reg_set[reg_set-1]); |
| 326 | |
| 327 | return 0; |
| 328 | } |
| 329 | |
Paul Walmsley | 2354eb5 | 2009-12-08 16:33:12 -0700 | [diff] [blame] | 330 | static const char pwrdm_state_names[][PWRDM_MAX_PWRSTS] = { |
Peter 'p2' De Schrijver | 331b93f | 2008-10-15 18:13:48 +0300 | [diff] [blame] | 331 | "OFF", |
| 332 | "RET", |
| 333 | "INA", |
| 334 | "ON" |
| 335 | }; |
| 336 | |
| 337 | void pm_dbg_update_time(struct powerdomain *pwrdm, int prev) |
| 338 | { |
| 339 | s64 t; |
| 340 | |
| 341 | if (!pm_dbg_init_done) |
| 342 | return ; |
| 343 | |
| 344 | /* Update timer for previous state */ |
| 345 | t = sched_clock(); |
| 346 | |
| 347 | pwrdm->state_timer[prev] += t - pwrdm->timer; |
| 348 | |
| 349 | pwrdm->timer = t; |
| 350 | } |
| 351 | |
| 352 | static int clkdm_dbg_show_counter(struct clockdomain *clkdm, void *user) |
| 353 | { |
| 354 | struct seq_file *s = (struct seq_file *)user; |
| 355 | |
| 356 | if (strcmp(clkdm->name, "emu_clkdm") == 0 || |
| 357 | strcmp(clkdm->name, "wkup_clkdm") == 0 || |
| 358 | strncmp(clkdm->name, "dpll", 4) == 0) |
| 359 | return 0; |
| 360 | |
| 361 | seq_printf(s, "%s->%s (%d)", clkdm->name, |
| 362 | clkdm->pwrdm.ptr->name, |
| 363 | atomic_read(&clkdm->usecount)); |
| 364 | seq_printf(s, "\n"); |
| 365 | |
| 366 | return 0; |
| 367 | } |
| 368 | |
| 369 | static int pwrdm_dbg_show_counter(struct powerdomain *pwrdm, void *user) |
| 370 | { |
| 371 | struct seq_file *s = (struct seq_file *)user; |
| 372 | int i; |
| 373 | |
| 374 | if (strcmp(pwrdm->name, "emu_pwrdm") == 0 || |
| 375 | strcmp(pwrdm->name, "wkup_pwrdm") == 0 || |
| 376 | strncmp(pwrdm->name, "dpll", 4) == 0) |
| 377 | return 0; |
| 378 | |
| 379 | if (pwrdm->state != pwrdm_read_pwrst(pwrdm)) |
| 380 | printk(KERN_ERR "pwrdm state mismatch(%s) %d != %d\n", |
| 381 | pwrdm->name, pwrdm->state, pwrdm_read_pwrst(pwrdm)); |
| 382 | |
| 383 | seq_printf(s, "%s (%s)", pwrdm->name, |
| 384 | pwrdm_state_names[pwrdm->state]); |
Paul Walmsley | 2354eb5 | 2009-12-08 16:33:12 -0700 | [diff] [blame] | 385 | for (i = 0; i < PWRDM_MAX_PWRSTS; i++) |
Peter 'p2' De Schrijver | 331b93f | 2008-10-15 18:13:48 +0300 | [diff] [blame] | 386 | seq_printf(s, ",%s:%d", pwrdm_state_names[i], |
| 387 | pwrdm->state_counter[i]); |
| 388 | |
Thara Gopinath | cde08f8 | 2010-02-24 12:05:50 -0700 | [diff] [blame] | 389 | seq_printf(s, ",RET-LOGIC-OFF:%d", pwrdm->ret_logic_off_counter); |
| 390 | for (i = 0; i < pwrdm->banks; i++) |
| 391 | seq_printf(s, ",RET-MEMBANK%d-OFF:%d", i + 1, |
| 392 | pwrdm->ret_mem_off_counter[i]); |
| 393 | |
Peter 'p2' De Schrijver | 331b93f | 2008-10-15 18:13:48 +0300 | [diff] [blame] | 394 | seq_printf(s, "\n"); |
| 395 | |
| 396 | return 0; |
| 397 | } |
| 398 | |
| 399 | static int pwrdm_dbg_show_timer(struct powerdomain *pwrdm, void *user) |
| 400 | { |
| 401 | struct seq_file *s = (struct seq_file *)user; |
| 402 | int i; |
| 403 | |
| 404 | if (strcmp(pwrdm->name, "emu_pwrdm") == 0 || |
| 405 | strcmp(pwrdm->name, "wkup_pwrdm") == 0 || |
| 406 | strncmp(pwrdm->name, "dpll", 4) == 0) |
| 407 | return 0; |
| 408 | |
| 409 | pwrdm_state_switch(pwrdm); |
| 410 | |
| 411 | seq_printf(s, "%s (%s)", pwrdm->name, |
| 412 | pwrdm_state_names[pwrdm->state]); |
| 413 | |
| 414 | for (i = 0; i < 4; i++) |
| 415 | seq_printf(s, ",%s:%lld", pwrdm_state_names[i], |
| 416 | pwrdm->state_timer[i]); |
| 417 | |
| 418 | seq_printf(s, "\n"); |
| 419 | return 0; |
| 420 | } |
| 421 | |
| 422 | static int pm_dbg_show_counters(struct seq_file *s, void *unused) |
| 423 | { |
| 424 | pwrdm_for_each(pwrdm_dbg_show_counter, s); |
| 425 | clkdm_for_each(clkdm_dbg_show_counter, s); |
| 426 | |
| 427 | return 0; |
| 428 | } |
| 429 | |
| 430 | static int pm_dbg_show_timers(struct seq_file *s, void *unused) |
| 431 | { |
| 432 | pwrdm_for_each(pwrdm_dbg_show_timer, s); |
| 433 | return 0; |
| 434 | } |
| 435 | |
| 436 | static int pm_dbg_open(struct inode *inode, struct file *file) |
| 437 | { |
| 438 | switch ((int)inode->i_private) { |
| 439 | case DEBUG_FILE_COUNTERS: |
| 440 | return single_open(file, pm_dbg_show_counters, |
| 441 | &inode->i_private); |
| 442 | case DEBUG_FILE_TIMERS: |
| 443 | default: |
| 444 | return single_open(file, pm_dbg_show_timers, |
| 445 | &inode->i_private); |
| 446 | }; |
| 447 | } |
| 448 | |
Tero Kristo | 2811d6b | 2008-10-29 13:31:24 +0200 | [diff] [blame] | 449 | static int pm_dbg_reg_open(struct inode *inode, struct file *file) |
| 450 | { |
| 451 | return single_open(file, pm_dbg_show_regs, inode->i_private); |
| 452 | } |
| 453 | |
Peter 'p2' De Schrijver | 331b93f | 2008-10-15 18:13:48 +0300 | [diff] [blame] | 454 | static const struct file_operations debug_fops = { |
| 455 | .open = pm_dbg_open, |
| 456 | .read = seq_read, |
| 457 | .llseek = seq_lseek, |
| 458 | .release = single_release, |
| 459 | }; |
| 460 | |
Tero Kristo | 2811d6b | 2008-10-29 13:31:24 +0200 | [diff] [blame] | 461 | static const struct file_operations debug_reg_fops = { |
| 462 | .open = pm_dbg_reg_open, |
| 463 | .read = seq_read, |
| 464 | .llseek = seq_lseek, |
| 465 | .release = single_release, |
| 466 | }; |
| 467 | |
| 468 | int pm_dbg_regset_init(int reg_set) |
| 469 | { |
| 470 | char name[2]; |
| 471 | |
| 472 | if (!pm_dbg_init_done) |
| 473 | pm_dbg_init(); |
| 474 | |
| 475 | if (reg_set < 1 || reg_set > PM_DBG_MAX_REG_SETS || |
| 476 | pm_dbg_reg_set[reg_set-1] != NULL) |
| 477 | return -EINVAL; |
| 478 | |
| 479 | pm_dbg_reg_set[reg_set-1] = |
| 480 | kmalloc(pm_dbg_get_regset_size(), GFP_KERNEL); |
| 481 | |
| 482 | if (pm_dbg_reg_set[reg_set-1] == NULL) |
| 483 | return -ENOMEM; |
| 484 | |
| 485 | if (pm_dbg_dir != NULL) { |
| 486 | sprintf(name, "%d", reg_set); |
| 487 | |
| 488 | (void) debugfs_create_file(name, S_IRUGO, |
| 489 | pm_dbg_dir, (void *)reg_set, &debug_reg_fops); |
| 490 | } |
| 491 | |
| 492 | return 0; |
| 493 | } |
| 494 | |
Tero Kristo | 68d4778 | 2008-11-26 12:26:24 +0200 | [diff] [blame] | 495 | static int pwrdm_suspend_get(void *data, u64 *val) |
| 496 | { |
Roel Kluin | 61b17d9 | 2009-12-16 17:22:04 +0100 | [diff] [blame] | 497 | int ret; |
| 498 | ret = omap3_pm_get_suspend_state((struct powerdomain *)data); |
| 499 | *val = ret; |
Tero Kristo | 68d4778 | 2008-11-26 12:26:24 +0200 | [diff] [blame] | 500 | |
Roel Kluin | 61b17d9 | 2009-12-16 17:22:04 +0100 | [diff] [blame] | 501 | if (ret >= 0) |
Tero Kristo | 68d4778 | 2008-11-26 12:26:24 +0200 | [diff] [blame] | 502 | return 0; |
| 503 | return *val; |
| 504 | } |
| 505 | |
| 506 | static int pwrdm_suspend_set(void *data, u64 val) |
| 507 | { |
| 508 | return omap3_pm_set_suspend_state((struct powerdomain *)data, (int)val); |
| 509 | } |
| 510 | |
| 511 | DEFINE_SIMPLE_ATTRIBUTE(pwrdm_suspend_fops, pwrdm_suspend_get, |
| 512 | pwrdm_suspend_set, "%llu\n"); |
| 513 | |
| 514 | static int __init pwrdms_setup(struct powerdomain *pwrdm, void *dir) |
Peter 'p2' De Schrijver | 331b93f | 2008-10-15 18:13:48 +0300 | [diff] [blame] | 515 | { |
| 516 | int i; |
| 517 | s64 t; |
Tero Kristo | 68d4778 | 2008-11-26 12:26:24 +0200 | [diff] [blame] | 518 | struct dentry *d; |
Peter 'p2' De Schrijver | 331b93f | 2008-10-15 18:13:48 +0300 | [diff] [blame] | 519 | |
| 520 | t = sched_clock(); |
| 521 | |
| 522 | for (i = 0; i < 4; i++) |
| 523 | pwrdm->state_timer[i] = 0; |
| 524 | |
| 525 | pwrdm->timer = t; |
| 526 | |
Tero Kristo | 68d4778 | 2008-11-26 12:26:24 +0200 | [diff] [blame] | 527 | if (strncmp(pwrdm->name, "dpll", 4) == 0) |
| 528 | return 0; |
| 529 | |
| 530 | d = debugfs_create_dir(pwrdm->name, (struct dentry *)dir); |
| 531 | |
| 532 | (void) debugfs_create_file("suspend", S_IRUGO|S_IWUSR, d, |
| 533 | (void *)pwrdm, &pwrdm_suspend_fops); |
| 534 | |
Peter 'p2' De Schrijver | 331b93f | 2008-10-15 18:13:48 +0300 | [diff] [blame] | 535 | return 0; |
| 536 | } |
| 537 | |
Kevin Hilman | c40552b | 2009-10-06 14:25:09 -0700 | [diff] [blame] | 538 | static int option_get(void *data, u64 *val) |
| 539 | { |
| 540 | u32 *option = data; |
| 541 | |
| 542 | *val = *option; |
| 543 | |
| 544 | return 0; |
| 545 | } |
| 546 | |
| 547 | static int option_set(void *data, u64 val) |
| 548 | { |
| 549 | u32 *option = data; |
| 550 | |
| 551 | *option = val; |
| 552 | |
| 553 | if (option == &enable_off_mode) |
| 554 | omap3_pm_off_mode_enable(val); |
| 555 | |
| 556 | return 0; |
| 557 | } |
| 558 | |
| 559 | DEFINE_SIMPLE_ATTRIBUTE(pm_dbg_option_fops, option_get, option_set, "%llu\n"); |
| 560 | |
Peter 'p2' De Schrijver | 331b93f | 2008-10-15 18:13:48 +0300 | [diff] [blame] | 561 | static int __init pm_dbg_init(void) |
| 562 | { |
Tero Kristo | 2811d6b | 2008-10-29 13:31:24 +0200 | [diff] [blame] | 563 | int i; |
Peter 'p2' De Schrijver | 331b93f | 2008-10-15 18:13:48 +0300 | [diff] [blame] | 564 | struct dentry *d; |
Tero Kristo | 2811d6b | 2008-10-29 13:31:24 +0200 | [diff] [blame] | 565 | char name[2]; |
Peter 'p2' De Schrijver | 331b93f | 2008-10-15 18:13:48 +0300 | [diff] [blame] | 566 | |
Tero Kristo | 2811d6b | 2008-10-29 13:31:24 +0200 | [diff] [blame] | 567 | if (pm_dbg_init_done) |
| 568 | return 0; |
| 569 | |
| 570 | if (cpu_is_omap34xx()) |
| 571 | pm_dbg_reg_modules = omap3_pm_reg_modules; |
| 572 | else { |
| 573 | printk(KERN_ERR "%s: only OMAP3 supported\n", __func__); |
| 574 | return -ENODEV; |
| 575 | } |
Artem Bityutskiy | ee894b1 | 2009-10-01 10:01:55 +0300 | [diff] [blame] | 576 | |
Peter 'p2' De Schrijver | 331b93f | 2008-10-15 18:13:48 +0300 | [diff] [blame] | 577 | d = debugfs_create_dir("pm_debug", NULL); |
| 578 | if (IS_ERR(d)) |
| 579 | return PTR_ERR(d); |
| 580 | |
| 581 | (void) debugfs_create_file("count", S_IRUGO, |
| 582 | d, (void *)DEBUG_FILE_COUNTERS, &debug_fops); |
| 583 | (void) debugfs_create_file("time", S_IRUGO, |
| 584 | d, (void *)DEBUG_FILE_TIMERS, &debug_fops); |
| 585 | |
Paul Walmsley | e909d62a8 | 2010-01-26 20:13:00 -0700 | [diff] [blame] | 586 | pwrdm_for_each(pwrdms_setup, (void *)d); |
Peter 'p2' De Schrijver | 331b93f | 2008-10-15 18:13:48 +0300 | [diff] [blame] | 587 | |
Tero Kristo | 2811d6b | 2008-10-29 13:31:24 +0200 | [diff] [blame] | 588 | pm_dbg_dir = debugfs_create_dir("registers", d); |
| 589 | if (IS_ERR(pm_dbg_dir)) |
| 590 | return PTR_ERR(pm_dbg_dir); |
| 591 | |
| 592 | (void) debugfs_create_file("current", S_IRUGO, |
| 593 | pm_dbg_dir, (void *)0, &debug_reg_fops); |
| 594 | |
| 595 | for (i = 0; i < PM_DBG_MAX_REG_SETS; i++) |
| 596 | if (pm_dbg_reg_set[i] != NULL) { |
| 597 | sprintf(name, "%d", i+1); |
| 598 | (void) debugfs_create_file(name, S_IRUGO, |
| 599 | pm_dbg_dir, (void *)(i+1), &debug_reg_fops); |
| 600 | |
| 601 | } |
| 602 | |
Kevin Hilman | c40552b | 2009-10-06 14:25:09 -0700 | [diff] [blame] | 603 | (void) debugfs_create_file("enable_off_mode", S_IRUGO | S_IWUGO, d, |
| 604 | &enable_off_mode, &pm_dbg_option_fops); |
| 605 | (void) debugfs_create_file("sleep_while_idle", S_IRUGO | S_IWUGO, d, |
| 606 | &sleep_while_idle, &pm_dbg_option_fops); |
Kevin Hilman | d7814e4 | 2009-10-06 14:30:23 -0700 | [diff] [blame] | 607 | (void) debugfs_create_file("wakeup_timer_seconds", S_IRUGO | S_IWUGO, d, |
| 608 | &wakeup_timer_seconds, &pm_dbg_option_fops); |
Peter 'p2' De Schrijver | 331b93f | 2008-10-15 18:13:48 +0300 | [diff] [blame] | 609 | pm_dbg_init_done = 1; |
| 610 | |
| 611 | return 0; |
| 612 | } |
Tero Kristo | 2811d6b | 2008-10-29 13:31:24 +0200 | [diff] [blame] | 613 | arch_initcall(pm_dbg_init); |
Peter 'p2' De Schrijver | 331b93f | 2008-10-15 18:13:48 +0300 | [diff] [blame] | 614 | |
Peter 'p2' De Schrijver | 331b93f | 2008-10-15 18:13:48 +0300 | [diff] [blame] | 615 | #endif |