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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/include/linux/ring_buffer.h
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/include/linux/ring_buffer.h')
-rw-r--r--ANDROID_3.4.5/include/linux/ring_buffer.h191
1 files changed, 0 insertions, 191 deletions
diff --git a/ANDROID_3.4.5/include/linux/ring_buffer.h b/ANDROID_3.4.5/include/linux/ring_buffer.h
deleted file mode 100644
index 7be2e88f..00000000
--- a/ANDROID_3.4.5/include/linux/ring_buffer.h
+++ /dev/null
@@ -1,191 +0,0 @@
-#ifndef _LINUX_RING_BUFFER_H
-#define _LINUX_RING_BUFFER_H
-
-#include <linux/kmemcheck.h>
-#include <linux/mm.h>
-#include <linux/seq_file.h>
-
-struct ring_buffer;
-struct ring_buffer_iter;
-
-/*
- * Don't refer to this struct directly, use functions below.
- */
-struct ring_buffer_event {
- kmemcheck_bitfield_begin(bitfield);
- u32 type_len:5, time_delta:27;
- kmemcheck_bitfield_end(bitfield);
-
- u32 array[];
-};
-
-/**
- * enum ring_buffer_type - internal ring buffer types
- *
- * @RINGBUF_TYPE_PADDING: Left over page padding or discarded event
- * If time_delta is 0:
- * array is ignored
- * size is variable depending on how much
- * padding is needed
- * If time_delta is non zero:
- * array[0] holds the actual length
- * size = 4 + length (bytes)
- *
- * @RINGBUF_TYPE_TIME_EXTEND: Extend the time delta
- * array[0] = time delta (28 .. 59)
- * size = 8 bytes
- *
- * @RINGBUF_TYPE_TIME_STAMP: Sync time stamp with external clock
- * array[0] = tv_nsec
- * array[1..2] = tv_sec
- * size = 16 bytes
- *
- * <= @RINGBUF_TYPE_DATA_TYPE_LEN_MAX:
- * Data record
- * If type_len is zero:
- * array[0] holds the actual length
- * array[1..(length+3)/4] holds data
- * size = 4 + length (bytes)
- * else
- * length = type_len << 2
- * array[0..(length+3)/4-1] holds data
- * size = 4 + length (bytes)
- */
-enum ring_buffer_type {
- RINGBUF_TYPE_DATA_TYPE_LEN_MAX = 28,
- RINGBUF_TYPE_PADDING,
- RINGBUF_TYPE_TIME_EXTEND,
- /* FIXME: RINGBUF_TYPE_TIME_STAMP not implemented */
- RINGBUF_TYPE_TIME_STAMP,
-};
-
-unsigned ring_buffer_event_length(struct ring_buffer_event *event);
-void *ring_buffer_event_data(struct ring_buffer_event *event);
-
-/*
- * ring_buffer_discard_commit will remove an event that has not
- * ben committed yet. If this is used, then ring_buffer_unlock_commit
- * must not be called on the discarded event. This function
- * will try to remove the event from the ring buffer completely
- * if another event has not been written after it.
- *
- * Example use:
- *
- * if (some_condition)
- * ring_buffer_discard_commit(buffer, event);
- * else
- * ring_buffer_unlock_commit(buffer, event);
- */
-void ring_buffer_discard_commit(struct ring_buffer *buffer,
- struct ring_buffer_event *event);
-
-/*
- * size is in bytes for each per CPU buffer.
- */
-struct ring_buffer *
-__ring_buffer_alloc(unsigned long size, unsigned flags, struct lock_class_key *key);
-
-/*
- * Because the ring buffer is generic, if other users of the ring buffer get
- * traced by ftrace, it can produce lockdep warnings. We need to keep each
- * ring buffer's lock class separate.
- */
-#define ring_buffer_alloc(size, flags) \
-({ \
- static struct lock_class_key __key; \
- __ring_buffer_alloc((size), (flags), &__key); \
-})
-
-void ring_buffer_free(struct ring_buffer *buffer);
-
-int ring_buffer_resize(struct ring_buffer *buffer, unsigned long size);
-
-void ring_buffer_change_overwrite(struct ring_buffer *buffer, int val);
-
-struct ring_buffer_event *ring_buffer_lock_reserve(struct ring_buffer *buffer,
- unsigned long length);
-int ring_buffer_unlock_commit(struct ring_buffer *buffer,
- struct ring_buffer_event *event);
-int ring_buffer_write(struct ring_buffer *buffer,
- unsigned long length, void *data);
-
-struct ring_buffer_event *
-ring_buffer_peek(struct ring_buffer *buffer, int cpu, u64 *ts,
- unsigned long *lost_events);
-struct ring_buffer_event *
-ring_buffer_consume(struct ring_buffer *buffer, int cpu, u64 *ts,
- unsigned long *lost_events);
-
-struct ring_buffer_iter *
-ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu);
-void ring_buffer_read_prepare_sync(void);
-void ring_buffer_read_start(struct ring_buffer_iter *iter);
-void ring_buffer_read_finish(struct ring_buffer_iter *iter);
-
-struct ring_buffer_event *
-ring_buffer_iter_peek(struct ring_buffer_iter *iter, u64 *ts);
-struct ring_buffer_event *
-ring_buffer_read(struct ring_buffer_iter *iter, u64 *ts);
-void ring_buffer_iter_reset(struct ring_buffer_iter *iter);
-int ring_buffer_iter_empty(struct ring_buffer_iter *iter);
-
-unsigned long ring_buffer_size(struct ring_buffer *buffer);
-
-void ring_buffer_reset_cpu(struct ring_buffer *buffer, int cpu);
-void ring_buffer_reset(struct ring_buffer *buffer);
-
-#ifdef CONFIG_RING_BUFFER_ALLOW_SWAP
-int ring_buffer_swap_cpu(struct ring_buffer *buffer_a,
- struct ring_buffer *buffer_b, int cpu);
-#else
-static inline int
-ring_buffer_swap_cpu(struct ring_buffer *buffer_a,
- struct ring_buffer *buffer_b, int cpu)
-{
- return -ENODEV;
-}
-#endif
-
-int ring_buffer_empty(struct ring_buffer *buffer);
-int ring_buffer_empty_cpu(struct ring_buffer *buffer, int cpu);
-
-void ring_buffer_record_disable(struct ring_buffer *buffer);
-void ring_buffer_record_enable(struct ring_buffer *buffer);
-void ring_buffer_record_off(struct ring_buffer *buffer);
-void ring_buffer_record_on(struct ring_buffer *buffer);
-int ring_buffer_record_is_on(struct ring_buffer *buffer);
-void ring_buffer_record_disable_cpu(struct ring_buffer *buffer, int cpu);
-void ring_buffer_record_enable_cpu(struct ring_buffer *buffer, int cpu);
-
-unsigned long ring_buffer_oldest_event_ts(struct ring_buffer *buffer, int cpu);
-unsigned long ring_buffer_bytes_cpu(struct ring_buffer *buffer, int cpu);
-unsigned long ring_buffer_entries(struct ring_buffer *buffer);
-unsigned long ring_buffer_overruns(struct ring_buffer *buffer);
-unsigned long ring_buffer_entries_cpu(struct ring_buffer *buffer, int cpu);
-unsigned long ring_buffer_overrun_cpu(struct ring_buffer *buffer, int cpu);
-unsigned long ring_buffer_commit_overrun_cpu(struct ring_buffer *buffer, int cpu);
-
-u64 ring_buffer_time_stamp(struct ring_buffer *buffer, int cpu);
-void ring_buffer_normalize_time_stamp(struct ring_buffer *buffer,
- int cpu, u64 *ts);
-void ring_buffer_set_clock(struct ring_buffer *buffer,
- u64 (*clock)(void));
-
-size_t ring_buffer_page_len(void *page);
-
-
-void *ring_buffer_alloc_read_page(struct ring_buffer *buffer, int cpu);
-void ring_buffer_free_read_page(struct ring_buffer *buffer, void *data);
-int ring_buffer_read_page(struct ring_buffer *buffer, void **data_page,
- size_t len, int cpu, int full);
-
-struct trace_seq;
-
-int ring_buffer_print_entry_header(struct trace_seq *s);
-int ring_buffer_print_page_header(struct trace_seq *s);
-
-enum ring_buffer_flags {
- RB_FL_OVERWRITE = 1 << 0,
-};
-
-#endif /* _LINUX_RING_BUFFER_H */