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- /**
- * @file cpu_buffer.h
- *
- * @remark Copyright 2002-2009 OProfile authors
- * @remark Read the file COPYING
- *
- * @author John Levon <levon@movementarian.org>
- * @author Robert Richter <robert.richter@amd.com>
- */
- int alloc_cpu_buffers(void);
- void free_cpu_buffers(void);
- void start_cpu_work(void);
- void end_cpu_work(void);
- void flush_cpu_work(void);
- struct op_entry;
- struct oprofile_cpu_buffer {
- Lock lock;
- unsigned long buffer_size;
- Proc *last_proc;
- int last_is_kernel;
- int tracing;
- unsigned long sample_received;
- unsigned long sample_lost_overflow;
- unsigned long backtrace_aborted;
- unsigned long sample_invalid_eip;
- int cpu;
- Block *block;
- /* long term plan: when we fill the block,
- * we write it to fullblock, and pull a
- * freeblock from the emptyblock queue.
- * The thread that pulls fullbocks and
- * allocates emptyblocks is timer-driven.
- * Or, barret will make me use his queues,
- * which is also fine; I just find the queue
- * functions convenient because they interface to
- * the dev code so easily.
- */
- Queue *fullqueue, *emptyqueue;
- };
- /* extra data flags */
- #define KERNEL_CTX_SWITCH (1UL << 0)
- #define IS_KERNEL (1UL << 1)
- #define TRACE_BEGIN (1UL << 2)
- #define USER_CTX_SWITCH (1UL << 3)
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