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dm: spl: Allow SPL to show memory usage

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Add an option to tell SPL to show memory usage for driver model just
before it boots into the next phase.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2022-05-08 04:39:27 -06:00
parent 2cb4ddb91e
commit 4f6500aa1a
2 changed files with 19 additions and 0 deletions
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9
common/spl/spl.c
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@ -34,6 +34,7 @@
#include <malloc.h>
#include <mapmem.h>
#include <dm/root.h>
#include <dm/util.h>
#include <linux/compiler.h>
#include <fdt_support.h>
#include <bootcount.h>
@ -780,6 +781,14 @@ void board_init_r(gd_t *dummy1, ulong dummy2)
bootcount_inc();
/* Dump driver model states to aid analysis */
if (CONFIG_IS_ENABLED(DM_STATS)) {
struct dm_stats mem;
dm_get_mem(&mem);
dm_dump_mem(&mem);
}
memset(&spl_image, '\0', sizeof(spl_image));
#ifdef CONFIG_SYS_SPL_ARGS_ADDR
spl_image.arg = (void *)CONFIG_SYS_SPL_ARGS_ADDR;

10
drivers/core/Kconfig
View file

@ -86,6 +86,16 @@ config DM_STATS
To display the memory stats, use the 'dm mem' command.
config SPL_DM_STATS
bool "Collect and show driver model stats in SPL"
depends on DM_SPL
help
Enable this to collect and display memory statistics about driver
model. This can help to figure out where all the memory is going and
to find optimisations.
The stats are displayed just before SPL boots to the next phase.
config DM_DEVICE_REMOVE
bool "Support device removal"
depends on DM