bootstage: Allow marking a particular line of code

Add a function which allows a (file, function, line number) to be marked
in bootstage.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Che-Liang Chiou <clchiou@chromium.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/include/bootstage.h b/include/bootstage.h
index c8235e8ed6..0f44e71fe2 100644
--- a/include/bootstage.h
+++ b/include/bootstage.h
@@ -267,6 +267,19 @@ ulong bootstage_error(enum bootstage_id id);
 ulong bootstage_mark_name(enum bootstage_id id, const char *name);
 
 /**
+ * Mark a time stamp in the given function and line number
+ *
+ * See BOOTSTAGE_MARKER() for a convenient macro.
+ *
+ * @param file		Filename to record (NULL if none)
+ * @param func		Function name to record
+ * @param linenum	Line number to record
+ * @return recorded time stamp
+ */
+ulong bootstage_mark_code(const char *file, const char *func,
+			  int linenum);
+
+/**
  * 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
@@ -358,6 +371,12 @@ static inline ulong bootstage_mark_name(enum bootstage_id id, const char *name)
 	return 0;
 }
 
+static inline ulong bootstage_mark_code(const char *file, const char *func,
+					int linenum)
+{
+	return 0;
+}
+
 static inline uint32_t bootstage_start(enum bootstage_id id, const char *name)
 {
 	return 0;
@@ -379,4 +398,8 @@ static inline int bootstage_unstash(void *base, int size)
 }
 #endif /* CONFIG_BOOTSTAGE */
 
+/* Helper macro for adding a bootstage to a line of code */
+#define BOOTSTAGE_MARKER()	\
+		bootstage_mark_code(__FILE__, __func__, __LINE__)
+
 #endif