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

[platform/kernel/u-boot.git] / cmd / dm.c

diff --git a/cmd/dm.c b/cmd/dm.c
index 0c7554a..eb40f08 100644 (file)
--- a/cmd/dm.c
+++ b/cmd/dm.c
@@ -8,6 +8,7 @@
 
 #include <common.h>
 #include <command.h>
+#include <dm/root.h>
 #include <dm/util.h>
 
 static int do_dm_dump_driver_compat(struct cmd_tbl *cmdtp, int flag, int argc,
@@ -34,6 +35,19 @@ static int do_dm_dump_drivers(struct cmd_tbl *cmdtp, int flag, int argc,
        return 0;
 }
 
+#if CONFIG_IS_ENABLED(DM_STATS)
+static int do_dm_dump_mem(struct cmd_tbl *cmdtp, int flag, int argc,
+                         char *const argv[])
+{
+       struct dm_stats mem;
+
+       dm_get_mem(&mem);
+       dm_dump_mem(&mem);
+
+       return 0;
+}
+#endif /* DM_STATS */
+
 static int do_dm_dump_static_driver_info(struct cmd_tbl *cmdtp, int flag,
                                         int argc, char * const argv[])
 {
@@ -58,11 +72,20 @@ static int do_dm_dump_uclass(struct cmd_tbl *cmdtp, int flag, int argc,
        return 0;
 }
 
+#if CONFIG_IS_ENABLED(DM_STATS)
+#define DM_MEM_HELP    "dm mem           Provide a summary of memory usage\n"
+#define DM_MEM         U_BOOT_SUBCMD_MKENT(mem, 1, 1, do_dm_dump_mem),
+#else
+#define DM_MEM_HELP
+#define DM_MEM
+#endif
+
 #if CONFIG_IS_ENABLED(SYS_LONGHELP)
 static char dm_help_text[] =
        "compat        Dump list of drivers with compatibility strings\n"
        "dm devres        Dump list of device resources for each device\n"
        "dm drivers       Dump list of drivers with uclass and instances\n"
+       DM_MEM_HELP
        "dm static        Dump list of drivers with static platform data\n"
        "dn tree          Dump tree of driver model devices ('*' = activated)\n"
        "dm uclass        Dump list of instances for each uclass"
@@ -73,6 +96,7 @@ U_BOOT_CMD_WITH_SUBCMDS(dm, "Driver model low level access", dm_help_text,
        U_BOOT_SUBCMD_MKENT(compat, 1, 1, do_dm_dump_driver_compat),
        U_BOOT_SUBCMD_MKENT(devres, 1, 1, do_dm_dump_devres),
        U_BOOT_SUBCMD_MKENT(drivers, 1, 1, do_dm_dump_drivers),
+       DM_MEM
        U_BOOT_SUBCMD_MKENT(static, 1, 1, do_dm_dump_static_driver_info),
        U_BOOT_SUBCMD_MKENT(tree, 1, 1, do_dm_dump_tree),
        U_BOOT_SUBCMD_MKENT(uclass, 1, 1, do_dm_dump_uclass));