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 ---
common/spl/spl.c | 9 +++++++++ drivers/core/Kconfig | 10 ++++++++++ 2 files changed, 19 insertions(+)
diff --git a/common/spl/spl.c b/common/spl/spl.c index c8c463f80bd..540e1925577 100644 --- a/common/spl/spl.c +++ b/common/spl/spl.c @@ -33,6 +33,7 @@ #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; diff --git a/drivers/core/Kconfig b/drivers/core/Kconfig index fa2811af83c..5c35914d30b 100644 --- a/drivers/core/Kconfig +++ b/drivers/core/Kconfig @@ -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