#include <linux/types.h>
#include <linux/spinlock.h>
+#include <linux/workqueue.h>
#include <linux/cache.h>
struct task_struct;
-/* allocate a sample buffer for each CPU */
int alloc_cpu_buffers(void);
-
void free_cpu_buffers(void);
+void start_cpu_work(void);
+void end_cpu_work(void);
+
/* CPU buffer is composed of such entries (which are
* also used for context switch notes)
*/
volatile unsigned long tail_pos;
unsigned long buffer_size;
struct task_struct * last_task;
- int last_is_kernel;
+ int last_cpu_mode;
+ int tracing;
struct op_sample * buffer;
unsigned long sample_received;
unsigned long sample_lost_overflow;
- unsigned long sample_lost_task_exit;
+ unsigned long backtrace_aborted;
+ int cpu;
+ struct delayed_work work;
} ____cacheline_aligned;
extern struct oprofile_cpu_buffer cpu_buffer[];
-void cpu_buffer_reset(struct oprofile_cpu_buffer *cpu_buf);
+void cpu_buffer_reset(struct oprofile_cpu_buffer * cpu_buf);
+
+/* transient events for the CPU buffer -> event buffer */
+#define CPU_MODE_USER 0
+#define CPU_MODE_KERNEL 1
+#define CPU_MODE_XEN 2
+#define CPU_TRACE_BEGIN 3
+#define CPU_DOMAIN_SWITCH 4
#endif /* OPROFILE_CPU_BUFFER_H */