X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=include%2Fbootstage.h;h=3b2216b8a8c8316df3dec35153947087623a905c;hb=ea2453d56b8860dbd18a3c517531ffc8dcb5c839;hp=b56d95351c8f8d850fd84dc4534e4752641a4ca1;hpb=770605e4f9874230728f5a592820c619b1565ebc;p=u-boot

diff --git a/include/bootstage.h b/include/bootstage.h
index b56d95351c..3b2216b8a8 100644
--- a/include/bootstage.h
+++ b/include/bootstage.h
@@ -26,6 +26,17 @@
 #ifndef _BOOTSTAGE_H
 #define _BOOTSTAGE_H
 
+/* The number of boot stage records available for the user */
+#ifndef CONFIG_BOOTSTAGE_USER_COUNT
+#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
@@ -169,8 +180,48 @@ enum bootstage_id {
 
 	BOOTSTAGE_ID_NAND_FIT_READ = 150,
 	BOOTSTAGE_ID_NAND_FIT_READ_OK,
+
+	/*
+	 * These boot stages are new, higher level, and not directly related
+	 * to the old boot progress numbers. They are useful for recording
+	 * 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,
+	BOOTSTAGE_ID_ETH_START,
+	BOOTSTAGE_ID_BOOTP_START,
+	BOOTSTAGE_ID_BOOTP_STOP,
+	BOOTSTAGE_ID_BOOTM_START,
+	BOOTSTAGE_ID_BOOTM_HANDOFF,
+	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,
+	BOOTSTAGE_ID_ALLOC,
 };
 
+/*
+ * Return the time since boot in microseconds, This is needed for bootstage
+ * and should be defined in CPU- or board-specific code. If undefined then
+ * millisecond resolution will be used (the standard get_timer()).
+ */
+ulong timer_get_boot_us(void);
+
+#ifndef CONFIG_SPL_BUILD
 /*
  * Board code can implement show_boot_progress() if needed.
  *
@@ -178,10 +229,24 @@ enum bootstage_id {
  *		has occurred.
  */
 void show_boot_progress(int val);
+#else
+#define show_boot_progress(val) do {} while (0)
+#endif
 
-#ifdef CONFIG_BOOTSTAGE
+#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.
  */
@@ -189,6 +254,66 @@ ulong bootstage_mark(enum bootstage_id id);
 
 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(),
@@ -207,6 +332,20 @@ static inline ulong bootstage_error(enum bootstage_id id)
 	return 0;
 }
 
+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