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authorLee Leahy <leroy.p.leahy@intel.com>2016-02-14 17:01:40 -0800
committerLeroy P Leahy <leroy.p.leahy@intel.com>2016-02-18 00:01:14 +0100
commit106053537ccfd990b678e072d5f941fb0f134e7a (patch)
treeb827d3474d0f39c60cf356b12243b0ab4c713573 /src
parentb43efa694e6ec08eb6594746f57b94cb014ca553 (diff)
downloadcoreboot-106053537ccfd990b678e072d5f941fb0f134e7a.tar.xz
lib: Add Kconfig to toggle boot state debugging
Add the DEBUG_BOOT_STATE Kconfig value to enable boot state debugging. Update include/bootstate.h and lib/hardwaremain.c to honor this value. Add a dashed line which displays between the states. Testing on Galileo: * select DEBUG_BOOT_STATE in mainboard/intel/galileo/Kconfig * Build and run on Galileo Change-Id: I6e8a0085aa33c8a1394f31c030e67ab3d5bf7299 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: https://review.coreboot.org/13716 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src')
-rw-r--r--src/Kconfig7
-rw-r--r--src/include/bootstate.h7
-rw-r--r--src/lib/hardwaremain.c25
3 files changed, 22 insertions, 17 deletions
diff --git a/src/Kconfig b/src/Kconfig
index 760fdf7d6a..4cceb141c7 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -1149,3 +1149,10 @@ config CBFS_SIZE
This is the part of the ROM actually managed by CBFS. Set it to be
equal to the full rom size if that hasn't been overridden by the
chipset or mainboard.
+
+config DEBUG_BOOT_STATE
+ bool
+ default n
+ help
+ Control debugging of the boot state machine. When selected displays
+ the state boundaries in ramstage.
diff --git a/src/include/bootstate.h b/src/include/bootstate.h
index 0889018e18..09178a56f0 100644
--- a/src/include/bootstate.h
+++ b/src/include/bootstate.h
@@ -25,9 +25,6 @@
#include <main_decl.h>
#endif
-/* Control debugging of the boot state machine. */
-#define BOOT_STATE_DEBUG 0
-
/*
* The boot state machine provides a mechanism for calls to be made through-
* out the main boot process. The boot process is separated into discrete
@@ -119,12 +116,12 @@ struct boot_state_callback {
void (*callback)(void *arg);
/* For use internal to the boot state machine. */
struct boot_state_callback *next;
-#if BOOT_STATE_DEBUG
+#if IS_ENABLED(CONFIG_DEBUG_BOOT_STATE)
const char *location;
#endif
};
-#if BOOT_STATE_DEBUG
+#if IS_ENABLED(CONFIG_DEBUG_BOOT_STATE)
#define BOOT_STATE_CALLBACK_LOC __FILE__ ":" STRINGIFY(__LINE__)
#define BOOT_STATE_CALLBACK_INIT_DEBUG .location = BOOT_STATE_CALLBACK_LOC,
#define INIT_BOOT_STATE_CALLBACK_DEBUG(bscb_) \
diff --git a/src/lib/hardwaremain.c b/src/lib/hardwaremain.c
index 34340a5770..10ef96cc0b 100644
--- a/src/lib/hardwaremain.c
+++ b/src/lib/hardwaremain.c
@@ -39,12 +39,6 @@
#include <timestamp.h>
#include <thread.h>
-#if BOOT_STATE_DEBUG
-#define BS_DEBUG_LVL BIOS_DEBUG
-#else
-#define BS_DEBUG_LVL BIOS_NEVER
-#endif
-
static boot_state_t bs_pre_device(void *arg);
static boot_state_t bs_dev_init_chips(void *arg);
static boot_state_t bs_dev_enumerate(void *arg);
@@ -296,12 +290,11 @@ static void bs_call_callbacks(struct boot_state *state,
phase->callbacks = bscb->next;
bscb->next = NULL;
-#if BOOT_STATE_DEBUG
- printk(BS_DEBUG_LVL, "BS: callback (%p) @ %s.\n",
- bscb, bscb->location);
+#if IS_ENABLED(CONFIG_DEBUG_BOOT_STATE)
+ printk(BIOS_DEBUG, "BS: callback (%p) @ %s.\n",
+ bscb, bscb->location);
#endif
bscb->callback(bscb->arg);
-
continue;
}
@@ -341,7 +334,9 @@ static void bs_walk_state_machine(void)
break;
}
- printk(BS_DEBUG_LVL, "BS: Entering %s state.\n", state->name);
+ if (IS_ENABLED(CONFIG_DEBUG_BOOT_STATE))
+ printk(BIOS_DEBUG, "BS: Entering %s state.\n",
+ state->name);
bs_run_timers(0);
@@ -359,12 +354,18 @@ static void bs_walk_state_machine(void)
next_id = state->run_state(state->arg);
- printk(BS_DEBUG_LVL, "BS: Exiting %s state.\n", state->name);
+ if (IS_ENABLED(CONFIG_DEBUG_BOOT_STATE))
+ printk(BIOS_DEBUG, "BS: Exiting %s state.\n",
+ state->name);
bs_sample_time(state);
bs_call_callbacks(state, current_phase.seq);
+ if (IS_ENABLED(CONFIG_DEBUG_BOOT_STATE))
+ printk(BIOS_DEBUG,
+ "----------------------------------------\n");
+
/* Update the current phase with new state id and sequence. */
current_phase.state_id = next_id;
current_phase.seq = BS_ON_ENTRY;