tracing: add "power-tracer": C/P state tracer to help power optimization

[linux-2.6-omap-h63xx.git] / kernel / trace / trace.h

diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 3abd645e8af2cde9489ef65c87f68ba357741eb2..4c453778a6abc2f290a16702fb557ef33e7a3c3e 100644 (file)
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -28,6 +28,7 @@ enum trace_type {
        TRACE_FN_RET,
        TRACE_USER_STACK,
        TRACE_BTS,
+       TRACE_POWER,
 
        __TRACE_LAST_TYPE
 };
@@ -160,6 +161,11 @@ struct bts_entry {
        unsigned long           to;
 };
 
+struct trace_power {
+       struct trace_entry      ent;
+       struct power_trace      state_data;
+};
+
 /*
  * trace_flag_type is an enumeration that holds different
  * states when a trace occurs. These are:
@@ -266,6 +272,7 @@ extern void __ftrace_bad_type(void);
                IF_ASSIGN(var, ent, struct trace_branch, TRACE_BRANCH); \
                IF_ASSIGN(var, ent, struct ftrace_ret_entry, TRACE_FN_RET);\
                IF_ASSIGN(var, ent, struct bts_entry, TRACE_BTS);\
+               IF_ASSIGN(var, ent, struct trace_power, TRACE_POWER); \
                __ftrace_bad_type();                                    \
        } while (0)