cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

kbuffer.h (1837B)

      1/* SPDX-License-Identifier: LGPL-2.1 */
      2/*
      3 * Copyright (C) 2012 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
      4 *
      5 */
      6#ifndef _KBUFFER_H
      7#define _KBUFFER_H
      8
      9#ifndef TS_SHIFT
     10#define TS_SHIFT		27
     11#endif
     12
     13enum kbuffer_endian {
     14	KBUFFER_ENDIAN_BIG,
     15	KBUFFER_ENDIAN_LITTLE,
     16};
     17
     18enum kbuffer_long_size {
     19	KBUFFER_LSIZE_4,
     20	KBUFFER_LSIZE_8,
     21};
     22
     23enum {
     24	KBUFFER_TYPE_PADDING		= 29,
     25	KBUFFER_TYPE_TIME_EXTEND	= 30,
     26	KBUFFER_TYPE_TIME_STAMP		= 31,
     27};
     28
     29struct kbuffer;
     30
     31struct kbuffer *kbuffer_alloc(enum kbuffer_long_size size, enum kbuffer_endian endian);
     32void kbuffer_free(struct kbuffer *kbuf);
     33int kbuffer_load_subbuffer(struct kbuffer *kbuf, void *subbuffer);
     34void *kbuffer_read_event(struct kbuffer *kbuf, unsigned long long *ts);
     35void *kbuffer_next_event(struct kbuffer *kbuf, unsigned long long *ts);
     36unsigned long long kbuffer_timestamp(struct kbuffer *kbuf);
     37unsigned long long kbuffer_subbuf_timestamp(struct kbuffer *kbuf, void *subbuf);
     38unsigned int kbuffer_ptr_delta(struct kbuffer *kbuf, void *ptr);
     39
     40void *kbuffer_translate_data(int swap, void *data, unsigned int *size);
     41
     42void *kbuffer_read_at_offset(struct kbuffer *kbuf, int offset, unsigned long long *ts);
     43
     44int kbuffer_curr_index(struct kbuffer *kbuf);
     45
     46int kbuffer_curr_offset(struct kbuffer *kbuf);
     47int kbuffer_curr_size(struct kbuffer *kbuf);
     48int kbuffer_event_size(struct kbuffer *kbuf);
     49int kbuffer_missed_events(struct kbuffer *kbuf);
     50int kbuffer_subbuffer_size(struct kbuffer *kbuf);
     51
     52void kbuffer_set_old_format(struct kbuffer *kbuf);
     53int kbuffer_start_of_data(struct kbuffer *kbuf);
     54
     55/* Debugging */
     56
     57struct kbuffer_raw_info {
     58	int			type;
     59	int			length;
     60	unsigned long long	delta;
     61	void			*next;
     62};
     63
     64/* Read raw data */
     65struct kbuffer_raw_info *kbuffer_raw_get(struct kbuffer *kbuf, void *subbuf,
     66					 struct kbuffer_raw_info *info);
     67
     68#endif /* _K_BUFFER_H */