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cbcd6970ad802b8b6c5acf79d42a870256b62fbb
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14 Commits

Author SHA1 Message Date
Simon Glass
cbcd6970ad bootstage: Fix up code style and comments 
There are several code style and comment nits. Fix them and also remove
the comment about passing bootstage to the kernel being TBD. This is
already supported.

Signed-off-by: Simon Glass <sjg@chromium.org>
 2017-06-05 14:13:05 -04:00
Simon Glass
b383d6c05e bootstage: Convert to use malloc() 
At present bootstage uses the data section of the image to store its
information. There are a few problems with this:

- It does not work on all boards (e.g. those which run from flash before
relocation)
- Allocated strings still point back to the pre-relocation data after
relocation

Now that U-Boot has a pre-relocation malloc() we can use this instead,
with a pointer to the data in global_data. Update bootstage to do this and
set up an init routine to allocate the memory.

Now that we have a real init function, we can drop the fake 'reset' record
and add a normal one instead.

Note that part of the problem with allocated strings remains. They are
reallocated but this will only work where pre-relocation memory is
accessible after relocation.

Signed-off-by: Simon Glass <sjg@chromium.org>
 2017-06-05 14:13:04 -04:00
Simon Glass
c87dc38d8f bootstage: Require timer_get_boot_us() to be defined 
At present we provide a default version of this function for use by
bootstage. However it uses the system timer and therefore likely requires
driver model. This makes it impossible to time driver-model init.

Drop the function and require boards to provide their own. Add a sandbox
version also. There is a default implememtation in lib/time.c for boards
which use CONFIG_SYS_TIMER_COUNTER.

Signed-off-by: Simon Glass <sjg@chromium.org>
 2017-06-05 14:13:04 -04:00
Wolfgang Denk
1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files 
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
 2013-07-24 09:44:38 -04:00
Simon Glass
b8bcaa3ad3 Add function to print a number with grouped digits 
Move bootstage's numbering printing code into a generic place so that it can
be used by tracing also.

Signed-off-by: Simon Glass <sjg@chromium.org>
 2013-06-26 10:16:41 -04:00
Simon Glass
5d3bd34545 bootstage: Correct printf types 
The unstash code is a bit loose with its printf() types, which gives
warnings on sandbox. Correct this.

Signed-off-by: Simon Glass <sjg@chromium.org>
 2013-06-26 10:16:41 -04:00
Simon Glass
fb7db41cd4 bootstage: Allow marking a particular line of code 
Add a function which allows a (file, function, line number) to be marked
in bootstage.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Che-Liang Chiou <clchiou@chromium.org>
 2013-05-13 13:33:22 -07:00
Doug Anderson
150678a582 bootstage: Copy bootstage strings post-relocation 
Any pointers to name strings that were passed to bootstage_mark_name()
pre-relocation should be copied post-relocation so that they don't get
trashed as the original location of U-Boot is re-used for other
purposes.

This change introduces a new API call that should be called from
board_init_r() after malloc has been initted on any board that uses
bootstage.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
 2013-05-13 13:33:21 -07:00
Simon Glass
fcf509b807 bootstage: Add feature to stash/unstash bootstage info 
It is useful to be able to write the bootstage information to memory for
use by a later utility, or the Linux kernel. Provide a function to do
this as well as a function to read bootstage information back and incorporate
it into the current table.

This also makes it possible for U-Boot to chain to another U-Boot and pass
on its bootstage information.

Signed-off-by: Simon Glass <sjg@chromium.org>
 2012-10-03 00:52:40 +02:00
Simon Glass
94fd1316b7 bootstage: Store boot timings in device tree 
Add an option, CONFIG_BOOTSTAGE_FDT to pass boot timings to the kernel
in the device tree, if available. To use this, you must have
CONFIG_OF_LIBFDT defined.

Signed-off-by: Simon Glass <sjg@chromium.org>
 2012-10-02 22:39:33 +02:00
Simon Glass
0e99677358 bootstage: Add time accumulation feature 
Sometimes we want to add up the amount of time spent in a particular
activity when it is happening in a number of discrete chunks.

Add bootstage_start() to mark the start of an acitivity and
bootstage_accum() to accumulate the time since the last start. Calling
these function in pairs results in the accumulated time being collected.

Signed-off-by: Simon Glass <sjg@chromium.org>
 2012-10-02 22:39:33 +02:00
Simon Glass
094e06a523 bootstage: Export bootstage_add_record() function 
This function is not static, but not exported either. Add a prototype
in the header file and move the required enum to the header also.

Signed-off-by: Simon Glass <sjg@chromium.org>
 2012-10-02 22:39:33 +02:00
Simon Glass
3786980dd3 Move bootstage timer out of lib/time.c 
The standalone example does not have get_timer() defined, so we cannot
rely on it being available.

Move the timer function into boootstage.c to avoid this problem.

This corrects a build breakage for the standalone example on some boards.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Matthias Fuchs <matthias.fuchs@esd.eu>
 2012-04-10 23:35:32 +02:00
Simon Glass
3a608ca01d bootstage: Implement core microsecond boot time measurement 
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>
 2012-03-18 21:42:14 +01:00