1#ifndef _ASM_INTEL_DS_H
2#define _ASM_INTEL_DS_H
3
4#include <linux/percpu-defs.h>
5
6#define BTS_BUFFER_SIZE		(PAGE_SIZE << 4)
7#define PEBS_BUFFER_SIZE	(PAGE_SIZE << 4)
8
9/* The maximal number of PEBS events: */
10#define MAX_PEBS_EVENTS_FMT4	8
11#define MAX_PEBS_EVENTS		32
12#define MAX_FIXED_PEBS_EVENTS	16
13
14/*
15 * A debug store configuration.
16 *
17 * We only support architectures that use 64bit fields.
18 */
19struct debug_store {
20	u64	bts_buffer_base;
21	u64	bts_index;
22	u64	bts_absolute_maximum;
23	u64	bts_interrupt_threshold;
24	u64	pebs_buffer_base;
25	u64	pebs_index;
26	u64	pebs_absolute_maximum;
27	u64	pebs_interrupt_threshold;
28	u64	pebs_event_reset[MAX_PEBS_EVENTS + MAX_FIXED_PEBS_EVENTS];
29} __aligned(PAGE_SIZE);
30
31DECLARE_PER_CPU_PAGE_ALIGNED(struct debug_store, cpu_debug_store);
32
33struct debug_store_buffers {
34	char	bts_buffer[BTS_BUFFER_SIZE];
35	char	pebs_buffer[PEBS_BUFFER_SIZE];
36};
37
38#endif
39