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-rw-r--r--include/bootstage.h85
1 files changed, 85 insertions, 0 deletions
diff --git a/include/bootstage.h b/include/bootstage.h
index db94a957e..3b2216b8a 100644
--- a/include/bootstage.h
+++ b/include/bootstage.h
@@ -31,6 +31,12 @@
#define CONFIG_BOOTSTAGE_USER_COUNT 20
#endif
+/* Flags for each bootstage record */
+enum bootstage_flags {
+ BOOTSTAGEF_ERROR = 1 << 0, /* Error record */
+ BOOTSTAGEF_ALLOC = 1 << 1, /* Allocate an id */
+};
+
/*
* A list of boot stages that we know about. Each of these indicates the
* state that we are at, and the action that we are about to perform. For
@@ -181,6 +187,7 @@ enum bootstage_id {
* rough boot timing information.
*/
BOOTSTAGE_ID_AWAKE,
+ BOOTSTAGE_ID_START_SPL,
BOOTSTAGE_ID_START_UBOOT_F,
BOOTSTAGE_ID_START_UBOOT_R,
BOOTSTAGE_ID_USB_START,
@@ -192,11 +199,15 @@ enum bootstage_id {
BOOTSTAGE_ID_MAIN_LOOP,
BOOTSTAGE_KERNELREAD_START,
BOOTSTAGE_KERNELREAD_STOP,
+ BOOTSTAGE_ID_BOARD_INIT,
+ BOOTSTAGE_ID_BOARD_INIT_DONE,
BOOTSTAGE_ID_CPU_AWAKE,
BOOTSTAGE_ID_MAIN_CPU_AWAKE,
BOOTSTAGE_ID_MAIN_CPU_READY,
+ BOOTSTAGE_ID_ACCUM_LCD,
+
/* a few spare for the user, from here */
BOOTSTAGE_ID_USER,
BOOTSTAGE_ID_COUNT = BOOTSTAGE_ID_USER + CONFIG_BOOTSTAGE_USER_COUNT,
@@ -225,6 +236,17 @@ void show_boot_progress(int val);
#if defined(CONFIG_BOOTSTAGE) && !defined(CONFIG_SPL_BUILD)
/* This is the full bootstage implementation */
+/**
+ * Add a new bootstage record
+ *
+ * @param id Bootstage ID to use (ignored if flags & BOOTSTAGEF_ALLOC)
+ * @param name Name of record, or NULL for none
+ * @param flags Flags (BOOTSTAGEF_...)
+ * @param mark Time to record in this record, in microseconds
+ */
+ulong bootstage_add_record(enum bootstage_id id, const char *name,
+ int flags, ulong mark);
+
/*
* Mark a time stamp for the current boot stage.
*/
@@ -234,9 +256,64 @@ ulong bootstage_error(enum bootstage_id id);
ulong bootstage_mark_name(enum bootstage_id id, const char *name);
+/**
+ * Mark the start of a bootstage activity. The end will be marked later with
+ * bootstage_accum() and at that point we accumulate the time taken. Calling
+ * this function turns the given id into a accumulator rather than and
+ * absolute mark in time. Accumulators record the total amount of time spent
+ * in an activty during boot.
+ *
+ * @param id Bootstage id to record this timestamp against
+ * @param name Textual name to display for this id in the report (maybe NULL)
+ * @return start timestamp in microseconds
+ */
+uint32_t bootstage_start(enum bootstage_id id, const char *name);
+
+/**
+ * Mark the end of a bootstage activity
+ *
+ * After previously marking the start of an activity with bootstage_start(),
+ * call this function to mark the end. You can call these functions in pairs
+ * as many times as you like.
+ *
+ * @param id Bootstage id to record this timestamp against
+ * @return time spent in this iteration of the activity (i.e. the time now
+ * less the start time recorded in the last bootstage_start() call
+ * with this id.
+ */
+uint32_t bootstage_accum(enum bootstage_id id);
+
/* Print a report about boot time */
void bootstage_report(void);
+/**
+ * Add bootstage information to the device tree
+ *
+ * @return 0 if ok, -ve on error
+ */
+int bootstage_fdt_add_report(void);
+
+/*
+ * Stash bootstage data into memory
+ *
+ * @param base Base address of memory buffer
+ * @param size Size of memory buffer
+ * @return 0 if stashed ok, -1 if out of space
+ */
+int bootstage_stash(void *base, int size);
+
+/**
+ * Read bootstage data from memory
+ *
+ * Bootstage data is read from memory and placed in the bootstage table
+ * in the user records.
+ *
+ * @param base Base address of memory buffer
+ * @param size Size of memory buffer (-1 if unknown)
+ * @return 0 if unstashed ok, -1 if bootstage info not found, or out of space
+ */
+int bootstage_unstash(void *base, int size);
+
#else
/*
* This is a dummy implementation which just calls show_boot_progress(),
@@ -260,7 +337,15 @@ static inline ulong bootstage_mark_name(enum bootstage_id id, const char *name)
return 0;
}
+static inline int bootstage_stash(void *base, int size)
+{
+ return 0; /* Pretend to succeed */
+}
+static inline int bootstage_unstash(void *base, int size)
+{
+ return 0; /* Pretend to succeed */
+}
#endif /* CONFIG_BOOTSTAGE */
#endif