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dm: core: Add a command to show driver model statistics

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This command shows the memory used by driver model along with various
hints as to what it might be if some 'core' tags were moved to use the
tag list instead of a core (i.e. always-there) pointer.

This may help with future work to reduce memory usage.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2022-05-08 04:39:26 -06:00
parent 0dfda34ca5
commit 2cb4ddb91e
7 changed files with 144 additions and 1 deletions
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9
include/dm/util.h
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@ -6,6 +6,8 @@
#ifndef __DM_UTIL_H
#define __DM_UTIL_H
struct dm_stats;
#if CONFIG_IS_ENABLED(DM_WARN)
#define dm_warn(fmt...) log(LOGC_DM, LOGL_WARNING, ##fmt)
#else
@ -48,6 +50,13 @@ void dm_dump_driver_compat(void);
/* Dump out a list of drivers with static platform data */
void dm_dump_static_driver_info(void);
/**
* dm_dump_mem() - Dump stats on memory usage in driver model
*
* @mem: Stats to dump
*/
void dm_dump_mem(struct dm_stats *stats);
#if CONFIG_IS_ENABLED(OF_PLATDATA_INST) && CONFIG_IS_ENABLED(READ_ONLY)
void *dm_priv_to_rw(void *priv);
#else