#include <errno.h>
#include <stdbool.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/bitops.h>
#include <linux/log2.h>
#include <cpuid.h>
#include "../../perf.h"
#include "../../util/session.h"
#include "../../util/event.h"
#include "../../util/evlist.h"
#include "../../util/evsel.h"
#include "../../util/cpumap.h"
#include <subcmd/parse-options.h>
#include "../../util/parse-events.h"
#include "../../util/pmu.h"
#include "../../util/debug.h"
#include "../../util/auxtrace.h"
#include "../../util/tsc.h"
#include "../../util/intel-pt.h"

Include dependency graph for intel-pt.c:

Classes
struct	intel_pt_snapshot_ref

struct	intel_pt_recording

Macros
#define	KiB(x) ((x) * 1024)

#define	MiB(x) ((x) * 1024 * 1024)

#define	KiB_MASK(x) (KiB(x) - 1)

#define	MiB_MASK(x) (MiB(x) - 1)

#define	INTEL_PT_PSB_PERIOD_NEAR 256

Functions
static int	intel_pt_parse_terms_with_default (struct list_head formats, const char str, u64 *config)

static int	intel_pt_parse_terms (struct list_head formats, const char str, u64 *config)

static u64	intel_pt_masked_bits (u64 mask, u64 bits)

static int	intel_pt_read_config (struct perf_pmu intel_pt_pmu, const char str, struct perf_evlist evlist, u64 res)

static size_t	intel_pt_psb_period (struct perf_pmu intel_pt_pmu, struct perf_evlist evlist)

static int	intel_pt_pick_bit (int bits, int target)

static u64	intel_pt_default_config (struct perf_pmu *intel_pt_pmu)

static int	intel_pt_parse_snapshot_options (struct auxtrace_record itr, struct record_opts opts, const char *str)

struct perf_event_attr *	intel_pt_pmu_default_config (struct perf_pmu *intel_pt_pmu)

static const char *	intel_pt_find_filter (struct perf_evlist evlist, struct perf_pmu intel_pt_pmu)

static size_t	intel_pt_filter_bytes (const char *filter)

static size_t	intel_pt_info_priv_size (struct auxtrace_record itr, struct perf_evlist evlist)

static void	intel_pt_tsc_ctc_ratio (u32 n, u32 d)

static int	intel_pt_info_fill (struct auxtrace_record itr, struct perf_session session, struct auxtrace_info_event *auxtrace_info, size_t priv_size)

static int	intel_pt_track_switches (struct perf_evlist *evlist)

static void	intel_pt_valid_str (char *str, size_t len, u64 valid)

static int	intel_pt_val_config_term (struct perf_pmu intel_pt_pmu, const char caps, const char name, const char supported, u64 config)

static int	intel_pt_validate_config (struct perf_pmu intel_pt_pmu, struct perf_evsel evsel)

static int	intel_pt_recording_options (struct auxtrace_record itr, struct perf_evlist evlist, struct record_opts *opts)

static int	intel_pt_snapshot_start (struct auxtrace_record *itr)

static int	intel_pt_snapshot_finish (struct auxtrace_record *itr)

static int	intel_pt_alloc_snapshot_refs (struct intel_pt_recording *ptr, int idx)

static void	intel_pt_free_snapshot_refs (struct intel_pt_recording *ptr)

static void	intel_pt_recording_free (struct auxtrace_record *itr)

static int	intel_pt_alloc_snapshot_ref (struct intel_pt_recording *ptr, int idx, size_t snapshot_buf_size)

static size_t	intel_pt_snapshot_ref_buf_size (struct intel_pt_recording *ptr, size_t snapshot_buf_size)

static int	intel_pt_snapshot_init (struct intel_pt_recording *ptr, size_t snapshot_buf_size)

static bool	intel_pt_compare_buffers (void buf1, size_t compare_size, void buf2, size_t offs2, size_t buf2_size)

static bool	intel_pt_compare_ref (void ref_buf, size_t ref_offset, size_t ref_size, size_t buf_size, void data, size_t head)

static void	intel_pt_copy_ref (void ref_buf, size_t ref_size, size_t buf_size, void data, size_t head)

static bool	intel_pt_wrapped (struct intel_pt_recording ptr, int idx, struct auxtrace_mmap mm, unsigned char *data, u64 head)

static bool	intel_pt_first_wrap (u64 *data, size_t buf_size)

static int	intel_pt_find_snapshot (struct auxtrace_record itr, int idx, struct auxtrace_mmap mm, unsigned char data, u64 head, u64 *old)

static u64	intel_pt_reference (struct auxtrace_record *itr __maybe_unused)

static int	intel_pt_read_finish (struct auxtrace_record *itr, int idx)

struct auxtrace_record *	intel_pt_recording_init (int *err)

Macro Definition Documentation

◆ INTEL_PT_PSB_PERIOD_NEAR

#define INTEL_PT_PSB_PERIOD_NEAR 256

Definition at line 43 of file intel-pt.c.

◆ KiB

#define KiB ( x ) ((x) * 1024)

Definition at line 38 of file intel-pt.c.

◆ KiB_MASK

#define KiB_MASK ( x ) (KiB(x) - 1)

Definition at line 40 of file intel-pt.c.

◆ MiB

#define MiB ( x ) ((x) * 1024 * 1024)

Definition at line 39 of file intel-pt.c.

◆ MiB_MASK

#define MiB_MASK ( x ) (MiB(x) - 1)

Definition at line 41 of file intel-pt.c.

Function Documentation

◆ intel_pt_alloc_snapshot_ref()

static int intel_pt_alloc_snapshot_ref	(	struct intel_pt_recording *	ptr,
		int	idx,
		size_t	snapshot_buf_size
	)

static

Definition at line 848 of file intel-pt.c.

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◆ intel_pt_alloc_snapshot_refs()

static int intel_pt_alloc_snapshot_refs	(	struct intel_pt_recording *	ptr,
		int	idx
	)

static

Definition at line 806 of file intel-pt.c.

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◆ intel_pt_compare_buffers()

static bool intel_pt_compare_buffers	(	void *	buf1,
		size_t	compare_size,
		void *	buf2,
		size_t	offs2,
		size_t	buf2_size
	)

static

intel_pt_compare_buffers - compare bytes in a buffer to a circular buffer. : first buffer : number of bytes to compare : second buffer (a circular buffer) : offset in second buffer : size of second buffer

The comparison allows for the possibility that the bytes to compare in the circular buffer are not contiguous. It is assumed that <= . This function returns false if the bytes are identical, true otherwise.

Definition at line 916 of file intel-pt.c.

◆ intel_pt_compare_ref()

static bool intel_pt_compare_ref	(	void *	ref_buf,
		size_t	ref_offset,
		size_t	ref_size,
		size_t	buf_size,
		void *	data,
		size_t	head
	)

static

Definition at line 933 of file intel-pt.c.

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◆ intel_pt_copy_ref()

static void intel_pt_copy_ref	(	void *	ref_buf,
		size_t	ref_size,
		size_t	buf_size,
		void *	data,
		size_t	head
	)

static

Definition at line 950 of file intel-pt.c.

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◆ intel_pt_default_config()

static u64 intel_pt_default_config ( struct perf_pmu * intel_pt_pmu )

static

Definition at line 188 of file intel-pt.c.

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◆ intel_pt_filter_bytes()

static size_t intel_pt_filter_bytes ( const char * filter )

static

Definition at line 292 of file intel-pt.c.

◆ intel_pt_find_filter()

static const char* intel_pt_find_filter	(	struct perf_evlist *	evlist,
		struct perf_pmu *	intel_pt_pmu
	)

static

Definition at line 279 of file intel-pt.c.

◆ intel_pt_find_snapshot()

static int intel_pt_find_snapshot	(	struct auxtrace_record *	itr,
		int	idx,
		struct auxtrace_mmap *	mm,
		unsigned char *	data,
		u64 *	head,
		u64 *	old
	)

static

Definition at line 996 of file intel-pt.c.

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◆ intel_pt_first_wrap()

static bool intel_pt_first_wrap	(	u64 *	data,
		size_t	buf_size
	)

static

Definition at line 979 of file intel-pt.c.

◆ intel_pt_free_snapshot_refs()

static void intel_pt_free_snapshot_refs ( struct intel_pt_recording * ptr )

static

Definition at line 830 of file intel-pt.c.

◆ intel_pt_info_fill()

static int intel_pt_info_fill	(	struct auxtrace_record *	itr,
		struct perf_session *	session,
		struct auxtrace_info_event *	auxtrace_info,
		size_t	priv_size
	)

static

Definition at line 321 of file intel-pt.c.

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◆ intel_pt_info_priv_size()

static size_t intel_pt_info_priv_size	(	struct auxtrace_record *	itr,
		struct perf_evlist *	evlist
	)

static

Definition at line 300 of file intel-pt.c.

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◆ intel_pt_masked_bits()

static u64 intel_pt_masked_bits	(	u64	mask,
		u64	bits
	)

static

Definition at line 101 of file intel-pt.c.

◆ intel_pt_parse_snapshot_options()

static int intel_pt_parse_snapshot_options	(	struct auxtrace_record *	itr,
		struct record_opts *	opts,
		const char *	str
	)

static

Definition at line 240 of file intel-pt.c.

◆ intel_pt_parse_terms()

static int intel_pt_parse_terms	(	struct list_head *	formats,
		const char *	str,
		u64 *	config
	)

static

Definition at line 94 of file intel-pt.c.

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◆ intel_pt_parse_terms_with_default()

static int intel_pt_parse_terms_with_default	(	struct list_head *	formats,
		const char *	str,
		u64 *	config
	)

static

Definition at line 65 of file intel-pt.c.

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◆ intel_pt_pick_bit()

static int intel_pt_pick_bit	(	int	bits,
		int	target
	)

static

Definition at line 172 of file intel-pt.c.

◆ intel_pt_pmu_default_config()

struct perf_event_attr* intel_pt_pmu_default_config ( struct perf_pmu * intel_pt_pmu )

Definition at line 264 of file intel-pt.c.

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◆ intel_pt_psb_period()

static size_t intel_pt_psb_period	(	struct perf_pmu *	intel_pt_pmu,
		struct perf_evlist *	evlist
	)

static

Definition at line 142 of file intel-pt.c.

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◆ intel_pt_read_config()

static int intel_pt_read_config	(	struct perf_pmu *	intel_pt_pmu,
		const char *	str,
		struct perf_evlist *	evlist,
		u64 *	res
	)

static

Definition at line 120 of file intel-pt.c.

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◆ intel_pt_read_finish()

static int intel_pt_read_finish	(	struct auxtrace_record *	itr,
		int	idx
	)

static

Definition at line 1066 of file intel-pt.c.

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◆ intel_pt_recording_free()

static void intel_pt_recording_free ( struct auxtrace_record * itr )

static

Definition at line 839 of file intel-pt.c.

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◆ intel_pt_recording_init()

struct auxtrace_record* intel_pt_recording_init ( int * err )

Definition at line 1080 of file intel-pt.c.

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◆ intel_pt_recording_options()

static int intel_pt_recording_options	(	struct auxtrace_record *	itr,
		struct perf_evlist *	evlist,
		struct record_opts *	opts
	)

static

Definition at line 548 of file intel-pt.c.

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◆ intel_pt_reference()

static u64 intel_pt_reference ( struct auxtrace_record *itr __maybe_unused )

static

Definition at line 1061 of file intel-pt.c.

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◆ intel_pt_snapshot_finish()

static int intel_pt_snapshot_finish ( struct auxtrace_record * itr )

static

Definition at line 793 of file intel-pt.c.

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◆ intel_pt_snapshot_init()

static int intel_pt_snapshot_init	(	struct intel_pt_recording *	ptr,
		size_t	snapshot_buf_size
	)

static

Definition at line 889 of file intel-pt.c.

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◆ intel_pt_snapshot_ref_buf_size()

static size_t intel_pt_snapshot_ref_buf_size	(	struct intel_pt_recording *	ptr,
		size_t	snapshot_buf_size
	)

static

Definition at line 864 of file intel-pt.c.

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◆ intel_pt_snapshot_start()

static int intel_pt_snapshot_start ( struct auxtrace_record * itr )

static

Definition at line 780 of file intel-pt.c.

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◆ intel_pt_track_switches()

static int intel_pt_track_switches ( struct perf_evlist * evlist )

static

Definition at line 409 of file intel-pt.c.

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◆ intel_pt_tsc_ctc_ratio()

static void intel_pt_tsc_ctc_ratio	(	u32 *	n,
		u32 *	d
	)

static

Definition at line 312 of file intel-pt.c.

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◆ intel_pt_val_config_term()

static int intel_pt_val_config_term	(	struct perf_pmu *	intel_pt_pmu,
		const char *	caps,
		const char *	name,
		const char *	supported,
		u64	config
	)

static

Definition at line 483 of file intel-pt.c.

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◆ intel_pt_valid_str()

static void intel_pt_valid_str	(	char *	str,
		size_t	len,
		u64	valid
	)

static

Definition at line 437 of file intel-pt.c.

◆ intel_pt_validate_config()

static int intel_pt_validate_config	(	struct perf_pmu *	intel_pt_pmu,
		struct perf_evsel *	evsel
	)

static

Definition at line 523 of file intel-pt.c.

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◆ intel_pt_wrapped()

static bool intel_pt_wrapped	(	struct intel_pt_recording *	ptr,
		int	idx,
		struct auxtrace_mmap *	mm,
		unsigned char *	data,
		u64	head
	)

static

Definition at line 962 of file intel-pt.c.

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Classes

Macros

Functions

Macro Definition Documentation

◆ INTEL_PT_PSB_PERIOD_NEAR

◆ KiB

◆ KiB_MASK

◆ MiB

◆ MiB_MASK

Function Documentation

◆ intel_pt_alloc_snapshot_ref()

◆ intel_pt_alloc_snapshot_refs()

◆ intel_pt_compare_buffers()

◆ intel_pt_compare_ref()

◆ intel_pt_copy_ref()

◆ intel_pt_default_config()

◆ intel_pt_filter_bytes()

◆ intel_pt_find_filter()

◆ intel_pt_find_snapshot()

◆ intel_pt_first_wrap()

◆ intel_pt_free_snapshot_refs()

◆ intel_pt_info_fill()

◆ intel_pt_info_priv_size()

◆ intel_pt_masked_bits()

◆ intel_pt_parse_snapshot_options()

◆ intel_pt_parse_terms()

◆ intel_pt_parse_terms_with_default()

◆ intel_pt_pick_bit()

◆ intel_pt_pmu_default_config()

◆ intel_pt_psb_period()

◆ intel_pt_read_config()

◆ intel_pt_read_finish()

◆ intel_pt_recording_free()

◆ intel_pt_recording_init()

◆ intel_pt_recording_options()

◆ intel_pt_reference()

◆ intel_pt_snapshot_finish()

◆ intel_pt_snapshot_init()

◆ intel_pt_snapshot_ref_buf_size()

◆ intel_pt_snapshot_start()

◆ intel_pt_track_switches()

◆ intel_pt_tsc_ctc_ratio()

◆ intel_pt_val_config_term()

◆ intel_pt_valid_str()

◆ intel_pt_validate_config()

◆ intel_pt_wrapped()