Merge branch 'auto-ftrace-next' into tracing/for-linus

[mv-sheeva.git] / kernel / trace / trace.h

diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index c1ec134ac356fce1cdc95f0b1b5778441143a74d..f69f86788c2bd12a2df18e4dabe9e66046a2e71f 100644 (file)
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -5,6 +5,7 @@
 #include <asm/atomic.h>
 #include <linux/sched.h>
 #include <linux/clocksource.h>
+#include <linux/mmiotrace.h>
 
 enum trace_type {
        __TRACE_FIRST_TYPE = 0,
@@ -14,6 +15,8 @@ enum trace_type {
        TRACE_WAKE,
        TRACE_STACK,
        TRACE_SPECIAL,
+       TRACE_MMIO_RW,
+       TRACE_MMIO_MAP,
 
        __TRACE_LAST_TYPE
 };
@@ -51,7 +54,7 @@ struct special_entry {
  * Stack-trace entry:
  */
 
-#define FTRACE_STACK_ENTRIES   5
+#define FTRACE_STACK_ENTRIES   8
 
 struct stack_entry {
        unsigned long           caller[FTRACE_STACK_ENTRIES];
@@ -75,6 +78,8 @@ struct trace_entry {
                struct ctx_switch_entry         ctx;
                struct special_entry            special;
                struct stack_entry              stack;
+               struct mmiotrace_rw             mmiorw;
+               struct mmiotrace_map            mmiomap;
        };
 };
 
@@ -135,9 +140,13 @@ struct tracer {
        void                    (*init)(struct trace_array *tr);
        void                    (*reset)(struct trace_array *tr);
        void                    (*open)(struct trace_iterator *iter);
+       void                    (*pipe_open)(struct trace_iterator *iter);
        void                    (*close)(struct trace_iterator *iter);
        void                    (*start)(struct trace_iterator *iter);
        void                    (*stop)(struct trace_iterator *iter);
+       ssize_t                 (*read)(struct trace_iterator *iter,
+                                       struct file *filp, char __user *ubuf,
+                                       size_t cnt, loff_t *ppos);
        void                    (*ctrl_update)(struct trace_array *tr);
 #ifdef CONFIG_FTRACE_STARTUP_TEST
        int                     (*selftest)(struct tracer *trace,
@@ -151,6 +160,7 @@ struct tracer {
 struct trace_seq {
        unsigned char           buffer[PAGE_SIZE];
        unsigned int            len;
+       unsigned int            readpos;
 };
 
 /*
@@ -160,6 +170,7 @@ struct trace_seq {
 struct trace_iterator {
        struct trace_array      *tr;
        struct tracer           *trace;
+       void                    *private;
        long                    last_overrun[NR_CPUS];
        long                    overrun[NR_CPUS];
 
@@ -182,6 +193,8 @@ struct trace_iterator {
 void tracing_reset(struct trace_array_cpu *data);
 int tracing_open_generic(struct inode *inode, struct file *filp);
 struct dentry *tracing_init_dentry(void);
+void init_tracer_sysprof_debugfs(struct dentry *d_tracer);
+
 void ftrace(struct trace_array *tr,
                            struct trace_array_cpu *data,
                            unsigned long ip,
@@ -210,8 +223,8 @@ void trace_function(struct trace_array *tr,
                    unsigned long parent_ip,
                    unsigned long flags);
 
-void tracing_start_function_trace(void);
-void tracing_stop_function_trace(void);
+void tracing_start_cmdline_record(void);
+void tracing_stop_cmdline_record(void);
 int register_tracer(struct tracer *type);
 void unregister_tracer(struct tracer *type);
 
@@ -220,33 +233,24 @@ extern unsigned long nsecs_to_usecs(unsigned long nsecs);
 extern unsigned long tracing_max_latency;
 extern unsigned long tracing_thresh;
 
-extern atomic_t trace_record_cmdline_enabled;
-
 void update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu);
 void update_max_tr_single(struct trace_array *tr,
                          struct task_struct *tsk, int cpu);
 
 extern cycle_t ftrace_now(int cpu);
 
-#ifdef CONFIG_SCHED_TRACER
-extern void
-wakeup_sched_switch(struct task_struct *prev, struct task_struct *next);
-extern void
-wakeup_sched_wakeup(struct task_struct *wakee, struct task_struct *curr);
+#ifdef CONFIG_FTRACE
+void tracing_start_function_trace(void);
+void tracing_stop_function_trace(void);
 #else
-static inline void
-wakeup_sched_switch(struct task_struct *prev, struct task_struct *next)
-{
-}
-static inline void
-wakeup_sched_wakeup(struct task_struct *wakee, struct task_struct *curr)
-{
-}
+# define tracing_start_function_trace()                do { } while (0)
+# define tracing_stop_function_trace()         do { } while (0)
 #endif
 
 #ifdef CONFIG_CONTEXT_SWITCH_TRACER
 typedef void
 (*tracer_switch_func_t)(void *private,
+                       void *__rq,
                        struct task_struct *prev,
                        struct task_struct *next);
 
@@ -256,9 +260,6 @@ struct tracer_switch_ops {
        struct tracer_switch_ops        *next;
 };
 
-extern int register_tracer_switch(struct tracer_switch_ops *ops);
-extern int unregister_tracer_switch(struct tracer_switch_ops *ops);
-
 #endif /* CONFIG_CONTEXT_SWITCH_TRACER */
 
 #ifdef CONFIG_DYNAMIC_FTRACE
@@ -267,6 +268,15 @@ extern unsigned long ftrace_update_tot_cnt;
 extern int DYN_FTRACE_TEST_NAME(void);
 #endif
 
+#ifdef CONFIG_MMIOTRACE
+extern void __trace_mmiotrace_rw(struct trace_array *tr,
+                               struct trace_array_cpu *data,
+                               struct mmiotrace_rw *rw);
+extern void __trace_mmiotrace_map(struct trace_array *tr,
+                               struct trace_array_cpu *data,
+                               struct mmiotrace_map *map);
+#endif
+
 #ifdef CONFIG_FTRACE_STARTUP_TEST
 #ifdef CONFIG_FTRACE
 extern int trace_selftest_startup_function(struct tracer *trace,
@@ -292,10 +302,16 @@ extern int trace_selftest_startup_wakeup(struct tracer *trace,
 extern int trace_selftest_startup_sched_switch(struct tracer *trace,
                                               struct trace_array *tr);
 #endif
+#ifdef CONFIG_SYSPROF_TRACER
+extern int trace_selftest_startup_sysprof(struct tracer *trace,
+                                              struct trace_array *tr);
+#endif
 #endif /* CONFIG_FTRACE_STARTUP_TEST */
 
 extern void *head_page(struct trace_array_cpu *data);
 extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...);
+extern ssize_t trace_seq_to_user(struct trace_seq *s, char __user *ubuf,
+                                size_t cnt);
 extern long ns2usecs(cycle_t nsec);
 
 extern unsigned long trace_flags;