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https://github.com/AsahiLinux/u-boot
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3a608ca01d
This defines the basics of a new boot time measurement feature. This allows
logging of very accurate time measurements as the boot proceeds, by using
an available microsecond counter.
To enable the feature, define CONFIG_BOOTSTAGE in your board config file.
Also available is CONFIG_BOOTSTAGE_REPORT which will cause a report to be
printed just before handing off to the OS.
Most IDs are not named at this stage. For that I would first like to
renumber them all.
Timer summary in microseconds:
Mark Elapsed Stage
0 0 reset
205,000 205,000 board_init_f
6,053,000 5,848,000 bootm_start
6,053,000 0 id=1
6,058,000 5,000 id=101
6,058,000 0 id=100
6,061,000 3,000 id=103
6,064,000 3,000 id=104
6,093,000 29,000 id=107
6,093,000 0 id=106
6,093,000 0 id=105
6,093,000 0 id=108
7,089,000 996,000 id=7
7,089,000 0 id=15
7,089,000 0 id=8
7,097,000 8,000 start_kernel
Signed-off-by: Simon Glass <sjg@chromium.org>
255 lines
7.6 KiB
C
255 lines
7.6 KiB
C
/*
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* This file implements recording of each stage of the boot process. It is
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* intended to implement timing of each stage, reporting this information
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* to the user and passing it to the OS for logging / further analysis.
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*
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* Copyright (c) 2011 The Chromium OS Authors.
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#ifndef _BOOTSTAGE_H
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#define _BOOTSTAGE_H
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/* The number of boot stage records available for the user */
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#ifndef CONFIG_BOOTSTAGE_USER_COUNT
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#define CONFIG_BOOTSTAGE_USER_COUNT 20
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#endif
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/*
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* A list of boot stages that we know about. Each of these indicates the
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* state that we are at, and the action that we are about to perform. For
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* errors, we issue an error for an item when it fails. Therefore the
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* normal sequence is:
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*
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* progress action1
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* progress action2
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* progress action3
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*
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* and an error condition where action 3 failed would be:
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*
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* progress action1
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* progress action2
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* progress action3
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* error on action3
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*/
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enum bootstage_id {
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BOOTSTAGE_ID_START = 0,
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BOOTSTAGE_ID_CHECK_MAGIC, /* Checking image magic */
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BOOTSTAGE_ID_CHECK_HEADER, /* Checking image header */
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BOOTSTAGE_ID_CHECK_CHECKSUM, /* Checking image checksum */
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BOOTSTAGE_ID_CHECK_ARCH, /* Checking architecture */
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BOOTSTAGE_ID_CHECK_IMAGETYPE = 5,/* Checking image type */
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BOOTSTAGE_ID_DECOMP_IMAGE, /* Decompressing image */
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BOOTSTAGE_ID_KERNEL_LOADED, /* Kernel has been loaded */
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BOOTSTAGE_ID_DECOMP_UNIMPL = 7, /* Odd decompression algorithm */
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BOOTSTAGE_ID_CHECK_BOOT_OS, /* Calling OS-specific boot function */
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BOOTSTAGE_ID_BOOT_OS_RETURNED, /* Tried to boot OS, but it returned */
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BOOTSTAGE_ID_CHECK_RAMDISK = 9, /* Checking ram disk */
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BOOTSTAGE_ID_RD_MAGIC, /* Checking ram disk magic */
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BOOTSTAGE_ID_RD_HDR_CHECKSUM, /* Checking ram disk heder checksum */
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BOOTSTAGE_ID_RD_CHECKSUM, /* Checking ram disk checksum */
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BOOTSTAGE_ID_COPY_RAMDISK = 12, /* Copying ram disk into place */
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BOOTSTAGE_ID_RAMDISK, /* Checking for valid ramdisk */
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BOOTSTAGE_ID_NO_RAMDISK, /* No ram disk found (not an error) */
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BOOTSTAGE_ID_RUN_OS = 15, /* Exiting U-Boot, entering OS */
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BOOTSTAGE_ID_NEED_RESET = 30,
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BOOTSTAGE_ID_POST_FAIL, /* Post failure */
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BOOTSTAGE_ID_POST_FAIL_R, /* Post failure reported after reloc */
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/*
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* This set is reported ony by x86, and the meaning is different. In
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* this case we are reporting completion of a particular stage.
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* This should probably change in he x86 code (which doesn't report
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* errors in any case), but discussion this can perhaps wait until we
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* have a generic board implementation.
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*/
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BOOTSTAGE_ID_BOARD_INIT_R, /* We have relocated */
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BOOTSTAGE_ID_BOARD_GLOBAL_DATA, /* Global data is set up */
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BOOTSTAGE_ID_BOARD_INIT_SEQ, /* We completed the init sequence */
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BOOTSTAGE_ID_BOARD_FLASH, /* We have configured flash banks */
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BOOTSTAGE_ID_BOARD_FLASH_37, /* In case you didn't hear... */
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BOOTSTAGE_ID_BOARD_ENV, /* Environment is relocated & ready */
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BOOTSTAGE_ID_BOARD_PCI, /* PCI is up */
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BOOTSTAGE_ID_BOARD_INTERRUPTS, /* Exceptions / interrupts ready */
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BOOTSTAGE_ID_BOARD_DONE, /* Board init done, off to main loop */
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/* ^^^ here ends the x86 sequence */
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/* Boot stages related to loading a kernel from an IDE device */
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BOOTSTAGE_ID_IDE_START = 41,
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BOOTSTAGE_ID_IDE_ADDR,
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BOOTSTAGE_ID_IDE_BOOT_DEVICE,
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BOOTSTAGE_ID_IDE_TYPE,
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BOOTSTAGE_ID_IDE_PART,
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BOOTSTAGE_ID_IDE_PART_INFO,
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BOOTSTAGE_ID_IDE_PART_TYPE,
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BOOTSTAGE_ID_IDE_PART_READ,
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BOOTSTAGE_ID_IDE_FORMAT,
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BOOTSTAGE_ID_IDE_CHECKSUM, /* 50 */
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BOOTSTAGE_ID_IDE_READ,
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/* Boot stages related to loading a kernel from an NAND device */
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BOOTSTAGE_ID_NAND_PART,
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BOOTSTAGE_ID_NAND_SUFFIX,
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BOOTSTAGE_ID_NAND_BOOT_DEVICE,
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BOOTSTAGE_ID_NAND_HDR_READ = 55,
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BOOTSTAGE_ID_NAND_AVAILABLE = 55,
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BOOTSTAGE_ID_NAND_TYPE = 57,
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BOOTSTAGE_ID_NAND_READ,
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/* Boot stages related to loading a kernel from an network device */
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BOOTSTAGE_ID_NET_CHECKSUM = 60,
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BOOTSTAGE_ID_NET_ETH_START = 64,
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BOOTSTAGE_ID_NET_ETH_INIT,
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BOOTSTAGE_ID_NET_START = 80,
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BOOTSTAGE_ID_NET_NETLOOP_OK,
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BOOTSTAGE_ID_NET_LOADED,
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BOOTSTAGE_ID_NET_DONE_ERR,
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BOOTSTAGE_ID_NET_DONE,
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/*
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* Boot stages related to loading a FIT image. Some of these are a
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* bit wonky.
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*/
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BOOTSTAGE_ID_FIT_FORMAT = 100,
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BOOTSTAGE_ID_FIT_NO_UNIT_NAME,
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BOOTSTAGE_ID_FIT_UNIT_NAME,
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BOOTSTAGE_ID_FIT_CONFIG,
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BOOTSTAGE_ID_FIT_CHECK_SUBIMAGE,
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BOOTSTAGE_ID_FIT_CHECK_HASH = 104,
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BOOTSTAGE_ID_FIT_CHECK_ARCH,
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BOOTSTAGE_ID_FIT_CHECK_KERNEL,
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BOOTSTAGE_ID_FIT_CHECKED,
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BOOTSTAGE_ID_FIT_KERNEL_INFO_ERR = 107,
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BOOTSTAGE_ID_FIT_KERNEL_INFO,
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BOOTSTAGE_ID_FIT_TYPE,
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BOOTSTAGE_ID_FIT_COMPRESSION,
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BOOTSTAGE_ID_FIT_OS,
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BOOTSTAGE_ID_FIT_LOADADDR,
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BOOTSTAGE_ID_OVERWRITTEN,
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BOOTSTAGE_ID_FIT_RD_FORMAT = 120,
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BOOTSTAGE_ID_FIT_RD_FORMAT_OK,
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BOOTSTAGE_ID_FIT_RD_NO_UNIT_NAME,
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BOOTSTAGE_ID_FIT_RD_UNIT_NAME,
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BOOTSTAGE_ID_FIT_RD_SUBNODE,
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BOOTSTAGE_ID_FIT_RD_CHECK,
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BOOTSTAGE_ID_FIT_RD_HASH = 125,
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BOOTSTAGE_ID_FIT_RD_CHECK_ALL,
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BOOTSTAGE_ID_FIT_RD_GET_DATA,
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BOOTSTAGE_ID_FIT_RD_CHECK_ALL_OK = 127,
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BOOTSTAGE_ID_FIT_RD_GET_DATA_OK,
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BOOTSTAGE_ID_FIT_RD_LOAD,
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BOOTSTAGE_ID_IDE_FIT_READ = 140,
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BOOTSTAGE_ID_IDE_FIT_READ_OK,
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BOOTSTAGE_ID_NAND_FIT_READ = 150,
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BOOTSTAGE_ID_NAND_FIT_READ_OK,
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/*
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* These boot stages are new, higher level, and not directly related
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* to the old boot progress numbers. They are useful for recording
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* rough boot timing information.
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*/
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BOOTSTAGE_ID_AWAKE,
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BOOTSTAGE_ID_START_UBOOT_F,
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BOOTSTAGE_ID_START_UBOOT_R,
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BOOTSTAGE_ID_USB_START,
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BOOTSTAGE_ID_ETH_START,
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BOOTSTAGE_ID_BOOTP_START,
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BOOTSTAGE_ID_BOOTP_STOP,
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BOOTSTAGE_ID_BOOTM_START,
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BOOTSTAGE_ID_BOOTM_HANDOFF,
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BOOTSTAGE_ID_MAIN_LOOP,
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BOOTSTAGE_KERNELREAD_START,
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BOOTSTAGE_KERNELREAD_STOP,
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BOOTSTAGE_ID_CPU_AWAKE,
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BOOTSTAGE_ID_MAIN_CPU_AWAKE,
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BOOTSTAGE_ID_MAIN_CPU_READY,
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/* a few spare for the user, from here */
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BOOTSTAGE_ID_USER,
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BOOTSTAGE_ID_COUNT = BOOTSTAGE_ID_USER + CONFIG_BOOTSTAGE_USER_COUNT,
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BOOTSTAGE_ID_ALLOC,
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};
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/*
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* Board code can implement show_boot_progress() if needed.
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*
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* @param val Progress state (enum bootstage_id), or -id if an error
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* has occurred.
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*/
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void show_boot_progress(int val);
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#ifdef CONFIG_BOOTSTAGE
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/* This is the full bootstage implementation */
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/*
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* Mark a time stamp for the current boot stage.
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*/
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ulong bootstage_mark(enum bootstage_id id);
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ulong bootstage_error(enum bootstage_id id);
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ulong bootstage_mark_name(enum bootstage_id id, const char *name);
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/* Print a report about boot time */
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void bootstage_report(void);
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#else
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/*
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* This is a dummy implementation which just calls show_boot_progress(),
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* and won't even do that unless CONFIG_SHOW_BOOT_PROGRESS is defined
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*/
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static inline ulong bootstage_mark(enum bootstage_id id)
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{
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show_boot_progress(id);
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return 0;
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}
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static inline ulong bootstage_error(enum bootstage_id id)
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{
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show_boot_progress(-id);
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return 0;
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}
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static inline ulong bootstage_mark_name(enum bootstage_id id, const char *name)
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{
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return 0;
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}
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#endif /* CONFIG_BOOTSTAGE */
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#endif
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