include/bootstage.h

   1 /*
   2  * This file implements recording of each stage of the boot process. It is
   3  * intended to implement timing of each stage, reporting this information
   4  * to the user and passing it to the OS for logging / further analysis.
   5  *
   6  * Copyright (c) 2011 The Chromium OS Authors.
   7  * See file CREDITS for list of people who contributed to this
   8  * project.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of
  13  * the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23  * MA 02111-1307 USA
  24  */
  25
  26 #ifndef _BOOTSTAGE_H
  27 #define _BOOTSTAGE_H
  28
  29 /* The number of boot stage records available for the user */
  30 #ifndef CONFIG_BOOTSTAGE_USER_COUNT
  31 #define CONFIG_BOOTSTAGE_USER_COUNT     20
  32 #endif
  33
  34 /*
  35  * A list of boot stages that we know about. Each of these indicates the
  36  * state that we are at, and the action that we are about to perform. For
  37  * errors, we issue an error for an item when it fails. Therefore the
  38  * normal sequence is:
  39  *
  40  * progress action1
  41  * progress action2
  42  * progress action3
  43  *
  44  * and an error condition where action 3 failed would be:
  45  *
  46  * progress action1
  47  * progress action2
  48  * progress action3
  49  * error on action3
  50  */
  51 enum bootstage_id {
  52         BOOTSTAGE_ID_START = 0,
  53         BOOTSTAGE_ID_CHECK_MAGIC,       /* Checking image magic */
  54         BOOTSTAGE_ID_CHECK_HEADER,      /* Checking image header */
  55         BOOTSTAGE_ID_CHECK_CHECKSUM,    /* Checking image checksum */
  56         BOOTSTAGE_ID_CHECK_ARCH,        /* Checking architecture */
  57
  58         BOOTSTAGE_ID_CHECK_IMAGETYPE = 5,/* Checking image type */
  59         BOOTSTAGE_ID_DECOMP_IMAGE,      /* Decompressing image */
  60         BOOTSTAGE_ID_KERNEL_LOADED,     /* Kernel has been loaded */
  61         BOOTSTAGE_ID_DECOMP_UNIMPL = 7, /* Odd decompression algorithm */
  62         BOOTSTAGE_ID_CHECK_BOOT_OS,     /* Calling OS-specific boot function */
  63         BOOTSTAGE_ID_BOOT_OS_RETURNED,  /* Tried to boot OS, but it returned */
  64         BOOTSTAGE_ID_CHECK_RAMDISK = 9, /* Checking ram disk */
  65
  66         BOOTSTAGE_ID_RD_MAGIC,          /* Checking ram disk magic */
  67         BOOTSTAGE_ID_RD_HDR_CHECKSUM,   /* Checking ram disk heder checksum */
  68         BOOTSTAGE_ID_RD_CHECKSUM,       /* Checking ram disk checksum */
  69         BOOTSTAGE_ID_COPY_RAMDISK = 12, /* Copying ram disk into place */
  70         BOOTSTAGE_ID_RAMDISK,           /* Checking for valid ramdisk */
  71         BOOTSTAGE_ID_NO_RAMDISK,        /* No ram disk found (not an error) */
  72
  73         BOOTSTAGE_ID_RUN_OS     = 15,   /* Exiting U-Boot, entering OS */
  74
  75         BOOTSTAGE_ID_NEED_RESET = 30,
  76         BOOTSTAGE_ID_POST_FAIL,         /* Post failure */
  77         BOOTSTAGE_ID_POST_FAIL_R,       /* Post failure reported after reloc */
  78
  79         /*
  80          * This set is reported ony by x86, and the meaning is different. In
  81          * this case we are reporting completion of a particular stage.
  82          * This should probably change in he x86 code (which doesn't report
  83          * errors in any case), but discussion this can perhaps wait until we
  84          * have a generic board implementation.
  85          */
  86         BOOTSTAGE_ID_BOARD_INIT_R,      /* We have relocated */
  87         BOOTSTAGE_ID_BOARD_GLOBAL_DATA, /* Global data is set up */
  88
  89         BOOTSTAGE_ID_BOARD_INIT_SEQ,    /* We completed the init sequence */
  90         BOOTSTAGE_ID_BOARD_FLASH,       /* We have configured flash banks */
  91         BOOTSTAGE_ID_BOARD_FLASH_37,    /* In case you didn't hear... */
  92         BOOTSTAGE_ID_BOARD_ENV,         /* Environment is relocated & ready */
  93         BOOTSTAGE_ID_BOARD_PCI,         /* PCI is up */
  94
  95         BOOTSTAGE_ID_BOARD_INTERRUPTS,  /* Exceptions / interrupts ready */
  96         BOOTSTAGE_ID_BOARD_DONE,        /* Board init done, off to main loop */
  97         /* ^^^ here ends the x86 sequence */
  98
  99         /* Boot stages related to loading a kernel from an IDE device */
 100         BOOTSTAGE_ID_IDE_START = 41,
 101         BOOTSTAGE_ID_IDE_ADDR,
 102         BOOTSTAGE_ID_IDE_BOOT_DEVICE,
 103         BOOTSTAGE_ID_IDE_TYPE,
 104
 105         BOOTSTAGE_ID_IDE_PART,
 106         BOOTSTAGE_ID_IDE_PART_INFO,
 107         BOOTSTAGE_ID_IDE_PART_TYPE,
 108         BOOTSTAGE_ID_IDE_PART_READ,
 109         BOOTSTAGE_ID_IDE_FORMAT,
 110
 111         BOOTSTAGE_ID_IDE_CHECKSUM,      /* 50 */
 112         BOOTSTAGE_ID_IDE_READ,
 113
 114         /* Boot stages related to loading a kernel from an NAND device */
 115         BOOTSTAGE_ID_NAND_PART,
 116         BOOTSTAGE_ID_NAND_SUFFIX,
 117         BOOTSTAGE_ID_NAND_BOOT_DEVICE,
 118         BOOTSTAGE_ID_NAND_HDR_READ = 55,
 119         BOOTSTAGE_ID_NAND_AVAILABLE = 55,
 120         BOOTSTAGE_ID_NAND_TYPE = 57,
 121         BOOTSTAGE_ID_NAND_READ,
 122
 123         /* Boot stages related to loading a kernel from an network device */
 124         BOOTSTAGE_ID_NET_CHECKSUM = 60,
 125         BOOTSTAGE_ID_NET_ETH_START = 64,
 126         BOOTSTAGE_ID_NET_ETH_INIT,
 127
 128         BOOTSTAGE_ID_NET_START = 80,
 129         BOOTSTAGE_ID_NET_NETLOOP_OK,
 130         BOOTSTAGE_ID_NET_LOADED,
 131         BOOTSTAGE_ID_NET_DONE_ERR,
 132         BOOTSTAGE_ID_NET_DONE,
 133
 134         /*
 135          * Boot stages related to loading a FIT image. Some of these are a
 136          * bit wonky.
 137          */
 138         BOOTSTAGE_ID_FIT_FORMAT = 100,
 139         BOOTSTAGE_ID_FIT_NO_UNIT_NAME,
 140         BOOTSTAGE_ID_FIT_UNIT_NAME,
 141         BOOTSTAGE_ID_FIT_CONFIG,
 142         BOOTSTAGE_ID_FIT_CHECK_SUBIMAGE,
 143         BOOTSTAGE_ID_FIT_CHECK_HASH = 104,
 144
 145         BOOTSTAGE_ID_FIT_CHECK_ARCH,
 146         BOOTSTAGE_ID_FIT_CHECK_KERNEL,
 147         BOOTSTAGE_ID_FIT_CHECKED,
 148
 149         BOOTSTAGE_ID_FIT_KERNEL_INFO_ERR = 107,
 150         BOOTSTAGE_ID_FIT_KERNEL_INFO,
 151         BOOTSTAGE_ID_FIT_TYPE,
 152
 153         BOOTSTAGE_ID_FIT_COMPRESSION,
 154         BOOTSTAGE_ID_FIT_OS,
 155         BOOTSTAGE_ID_FIT_LOADADDR,
 156         BOOTSTAGE_ID_OVERWRITTEN,
 157
 158         BOOTSTAGE_ID_FIT_RD_FORMAT = 120,
 159         BOOTSTAGE_ID_FIT_RD_FORMAT_OK,
 160         BOOTSTAGE_ID_FIT_RD_NO_UNIT_NAME,
 161         BOOTSTAGE_ID_FIT_RD_UNIT_NAME,
 162         BOOTSTAGE_ID_FIT_RD_SUBNODE,
 163
 164         BOOTSTAGE_ID_FIT_RD_CHECK,
 165         BOOTSTAGE_ID_FIT_RD_HASH = 125,
 166         BOOTSTAGE_ID_FIT_RD_CHECK_ALL,
 167         BOOTSTAGE_ID_FIT_RD_GET_DATA,
 168         BOOTSTAGE_ID_FIT_RD_CHECK_ALL_OK = 127,
 169         BOOTSTAGE_ID_FIT_RD_GET_DATA_OK,
 170         BOOTSTAGE_ID_FIT_RD_LOAD,
 171
 172         BOOTSTAGE_ID_IDE_FIT_READ = 140,
 173         BOOTSTAGE_ID_IDE_FIT_READ_OK,
 174
 175         BOOTSTAGE_ID_NAND_FIT_READ = 150,
 176         BOOTSTAGE_ID_NAND_FIT_READ_OK,
 177
 178         /*
 179          * These boot stages are new, higher level, and not directly related
 180          * to the old boot progress numbers. They are useful for recording
 181          * rough boot timing information.
 182          */
 183         BOOTSTAGE_ID_AWAKE,
 184         BOOTSTAGE_ID_START_UBOOT_F,
 185         BOOTSTAGE_ID_START_UBOOT_R,
 186         BOOTSTAGE_ID_USB_START,
 187         BOOTSTAGE_ID_ETH_START,
 188         BOOTSTAGE_ID_BOOTP_START,
 189         BOOTSTAGE_ID_BOOTP_STOP,
 190         BOOTSTAGE_ID_BOOTM_START,
 191         BOOTSTAGE_ID_BOOTM_HANDOFF,
 192         BOOTSTAGE_ID_MAIN_LOOP,
 193         BOOTSTAGE_KERNELREAD_START,
 194         BOOTSTAGE_KERNELREAD_STOP,
 195
 196         BOOTSTAGE_ID_CPU_AWAKE,
 197         BOOTSTAGE_ID_MAIN_CPU_AWAKE,
 198         BOOTSTAGE_ID_MAIN_CPU_READY,
 199
 200         /* a few spare for the user, from here */
 201         BOOTSTAGE_ID_USER,
 202         BOOTSTAGE_ID_COUNT = BOOTSTAGE_ID_USER + CONFIG_BOOTSTAGE_USER_COUNT,
 203         BOOTSTAGE_ID_ALLOC,
 204 };
 205
 206 /*
 207  * Return the time since boot in microseconds, This is needed for bootstage
 208  * and should be defined in CPU- or board-specific code. If undefined then
 209  * millisecond resolution will be used (the standard get_timer()).
 210  */
 211 ulong timer_get_boot_us(void);
 212
 213 /*
 214  * Board code can implement show_boot_progress() if needed.
 215  *
 216  * @param val   Progress state (enum bootstage_id), or -id if an error
 217  *              has occurred.
 218  */
 219 void show_boot_progress(int val);
 220
 221 #ifdef CONFIG_BOOTSTAGE
 222 /* This is the full bootstage implementation */
 223
 224 /*
 225  * Mark a time stamp for the current boot stage.
 226  */
 227 ulong bootstage_mark(enum bootstage_id id);
 228
 229 ulong bootstage_error(enum bootstage_id id);
 230
 231 ulong bootstage_mark_name(enum bootstage_id id, const char *name);
 232
 233 /* Print a report about boot time */
 234 void bootstage_report(void);
 235
 236 #else
 237 /*
 238  * This is a dummy implementation which just calls show_boot_progress(),
 239  * and won't even do that unless CONFIG_SHOW_BOOT_PROGRESS is defined
 240  */
 241
 242 static inline ulong bootstage_mark(enum bootstage_id id)
 243 {
 244         show_boot_progress(id);
 245         return 0;
 246 }
 247
 248 static inline ulong bootstage_error(enum bootstage_id id)
 249 {
 250         show_boot_progress(-id);
 251         return 0;
 252 }
 253
 254 static inline ulong bootstage_mark_name(enum bootstage_id id, const char *name)
 255 {
 256         return 0;
 257 }
 258
 259
 260 #endif /* CONFIG_BOOTSTAGE */
 261
 262 #endif