diff options
Diffstat (limited to '')
| -rw-r--r-- | tools/perf/util/cs-etm.h | 149 |
1 files changed, 101 insertions, 48 deletions
diff --git a/tools/perf/util/cs-etm.h b/tools/perf/util/cs-etm.h index 4ad925d6d799..4696267a32f0 100644 --- a/tools/perf/util/cs-etm.h +++ b/tools/perf/util/cs-etm.h @@ -7,33 +7,54 @@ #ifndef INCLUDE__UTIL_PERF_CS_ETM_H__ #define INCLUDE__UTIL_PERF_CS_ETM_H__ +#include "debug.h" #include "util/event.h" #include <linux/bits.h> struct perf_session; +struct perf_pmu; -/* Versionning header in case things need tro change in the future. That way +/* + * Versioning header in case things need to change in the future. That way * decoding of old snapshot is still possible. */ enum { /* Starting with 0x0 */ - CS_HEADER_VERSION_0, + CS_HEADER_VERSION, /* PMU->type (32 bit), total # of CPUs (32 bit) */ CS_PMU_TYPE_CPUS, CS_ETM_SNAPSHOT, - CS_HEADER_VERSION_0_MAX, + CS_HEADER_VERSION_MAX, }; +/* + * Update the version for new format. + * + * Version 1: format adds a param count to the per cpu metadata. + * This allows easy adding of new metadata parameters. + * Requires that new params always added after current ones. + * Also allows client reader to handle file versions that are different by + * checking the number of params in the file vs the number expected. + * + * Version 2: Drivers will use PERF_RECORD_AUX_OUTPUT_HW_ID to output + * CoreSight Trace ID. ...TRACEIDR metadata will be set to legacy values + * but with addition flags. + */ +#define CS_HEADER_CURRENT_VERSION 2 + /* Beginning of header common to both ETMv3 and V4 */ enum { CS_ETM_MAGIC, CS_ETM_CPU, + /* Number of trace config params in following ETM specific block */ + CS_ETM_NR_TRC_PARAMS, + CS_ETM_COMMON_BLK_MAX_V1, }; /* ETMv3/PTM metadata */ enum { /* Dynamic, configurable parameters */ - CS_ETM_ETMCR = CS_ETM_CPU + 1, + CS_ETM_ETMCR = CS_ETM_COMMON_BLK_MAX_V1, CS_ETM_ETMTRACEIDR, /* RO, taken from sysFS */ CS_ETM_ETMCCER, @@ -41,10 +62,13 @@ enum { CS_ETM_PRIV_MAX, }; +/* define fixed version 0 length - allow new format reader to read old files. */ +#define CS_ETM_NR_TRC_PARAMS_V0 (CS_ETM_ETMIDR - CS_ETM_ETMCR + 1) + /* ETMv4 metadata */ enum { /* Dynamic, configurable parameters */ - CS_ETMV4_TRCCONFIGR = CS_ETM_CPU + 1, + CS_ETMV4_TRCCONFIGR = CS_ETM_COMMON_BLK_MAX_V1, CS_ETMV4_TRCTRACEIDR, /* RO, taken from sysFS */ CS_ETMV4_TRCIDR0, @@ -52,12 +76,41 @@ enum { CS_ETMV4_TRCIDR2, CS_ETMV4_TRCIDR8, CS_ETMV4_TRCAUTHSTATUS, + CS_ETMV4_TS_SOURCE, CS_ETMV4_PRIV_MAX, }; +/* define fixed version 0 length - allow new format reader to read old files. */ +#define CS_ETMV4_NR_TRC_PARAMS_V0 (CS_ETMV4_TRCAUTHSTATUS - CS_ETMV4_TRCCONFIGR + 1) + +/* + * ETE metadata is ETMv4 plus TRCDEVARCH register and doesn't support header V0 since it was + * added in header V1 + */ +enum { + /* Dynamic, configurable parameters */ + CS_ETE_TRCCONFIGR = CS_ETM_COMMON_BLK_MAX_V1, + CS_ETE_TRCTRACEIDR, + /* RO, taken from sysFS */ + CS_ETE_TRCIDR0, + CS_ETE_TRCIDR1, + CS_ETE_TRCIDR2, + CS_ETE_TRCIDR8, + CS_ETE_TRCAUTHSTATUS, + CS_ETE_TRCDEVARCH, + CS_ETE_TS_SOURCE, + CS_ETE_PRIV_MAX +}; + +/* + * Check for valid CoreSight trace ID. If an invalid value is present in the metadata, + * then IDs are present in the hardware ID packet in the data file. + */ +#define CS_IS_VALID_TRACE_ID(id) ((id > 0) && (id < 0x70)) + /* * ETMv3 exception encoding number: - * See Embedded Trace Macrocell spcification (ARM IHI 0014Q) + * See Embedded Trace Macrocell specification (ARM IHI 0014Q) * table 7-12 Encoding of Exception[3:0] for non-ARMv7-M processors. */ enum { @@ -126,8 +179,8 @@ struct cs_etm_packet { u32 last_instr_subtype; u32 flags; u32 exception_number; - u8 last_instr_cond; - u8 last_instr_taken_branch; + bool last_instr_cond; + bool last_instr_taken_branch; u8 last_instr_size; u8 trace_chan_id; int cpu; @@ -150,8 +203,8 @@ struct cs_etm_packet_queue { u32 head; u32 tail; u32 instr_count; - u64 timestamp; - u64 next_timestamp; + u64 cs_timestamp; /* Timestamp from trace data, converted to ns if possible */ + u64 next_cs_timestamp; struct cs_etm_packet packet_buffer[CS_ETM_PACKET_MAX_BUFFER]; }; @@ -162,63 +215,63 @@ struct cs_etm_packet_queue { #define BMVAL(val, lsb, msb) ((val & GENMASK(msb, lsb)) >> lsb) -#define CS_ETM_HEADER_SIZE (CS_HEADER_VERSION_0_MAX * sizeof(u64)) +#define CS_ETM_HEADER_SIZE (CS_HEADER_VERSION_MAX * sizeof(u64)) #define __perf_cs_etmv3_magic 0x3030303030303030ULL #define __perf_cs_etmv4_magic 0x4040404040404040ULL +#define __perf_cs_ete_magic 0x5050505050505050ULL #define CS_ETMV3_PRIV_SIZE (CS_ETM_PRIV_MAX * sizeof(u64)) #define CS_ETMV4_PRIV_SIZE (CS_ETMV4_PRIV_MAX * sizeof(u64)) +#define CS_ETE_PRIV_SIZE (CS_ETE_PRIV_MAX * sizeof(u64)) + +#define INFO_HEADER_SIZE (sizeof(((struct perf_record_auxtrace_info *)0)->type) + \ + sizeof(((struct perf_record_auxtrace_info *)0)->reserved__)) + +/* CoreSight trace ID is currently the bottom 7 bits of the value */ +#define CORESIGHT_TRACE_ID_VAL_MASK GENMASK(6, 0) + +/* + * perf record will set the legacy meta data values as unused initially. + * This allows perf report to manage the decoders created when dynamic + * allocation in operation. + */ +#define CORESIGHT_TRACE_ID_UNUSED_FLAG BIT(31) + +/* Value to set for unused trace ID values */ +#define CORESIGHT_TRACE_ID_UNUSED_VAL 0x7F -#ifdef HAVE_CSTRACE_SUPPORT int cs_etm__process_auxtrace_info(union perf_event *event, struct perf_session *session); +void cs_etm_get_default_config(const struct perf_pmu *pmu, struct perf_event_attr *attr); + +enum cs_etm_pid_fmt { + CS_ETM_PIDFMT_NONE, + CS_ETM_PIDFMT_CTXTID, + CS_ETM_PIDFMT_CTXTID2 +}; + +#ifdef HAVE_CSTRACE_SUPPORT +#include <opencsd/ocsd_if_types.h> int cs_etm__get_cpu(u8 trace_chan_id, int *cpu); -int cs_etm__etmq_set_tid(struct cs_etm_queue *etmq, - pid_t tid, u8 trace_chan_id); +enum cs_etm_pid_fmt cs_etm__get_pid_fmt(struct cs_etm_queue *etmq); +int cs_etm__etmq_set_tid_el(struct cs_etm_queue *etmq, pid_t tid, + u8 trace_chan_id, ocsd_ex_level el); bool cs_etm__etmq_is_timeless(struct cs_etm_queue *etmq); void cs_etm__etmq_set_traceid_queue_timestamp(struct cs_etm_queue *etmq, u8 trace_chan_id); struct cs_etm_packet_queue *cs_etm__etmq_get_packet_queue(struct cs_etm_queue *etmq, u8 trace_chan_id); +int cs_etm__process_auxtrace_info_full(union perf_event *event __maybe_unused, + struct perf_session *session __maybe_unused); +u64 cs_etm__convert_sample_time(struct cs_etm_queue *etmq, u64 cs_timestamp); #else static inline int -cs_etm__process_auxtrace_info(union perf_event *event __maybe_unused, - struct perf_session *session __maybe_unused) +cs_etm__process_auxtrace_info_full(union perf_event *event __maybe_unused, + struct perf_session *session __maybe_unused) { + pr_err("\nCS ETM Trace: OpenCSD is not linked in, please recompile with CORESIGHT=1\n"); return -1; } - -static inline int cs_etm__get_cpu(u8 trace_chan_id __maybe_unused, - int *cpu __maybe_unused) -{ - return -1; -} - -static inline int cs_etm__etmq_set_tid( - struct cs_etm_queue *etmq __maybe_unused, - pid_t tid __maybe_unused, - u8 trace_chan_id __maybe_unused) -{ - return -1; -} - -static inline bool cs_etm__etmq_is_timeless( - struct cs_etm_queue *etmq __maybe_unused) -{ - /* What else to return? */ - return true; -} - -static inline void cs_etm__etmq_set_traceid_queue_timestamp( - struct cs_etm_queue *etmq __maybe_unused, - u8 trace_chan_id __maybe_unused) {} - -static inline struct cs_etm_packet_queue *cs_etm__etmq_get_packet_queue( - struct cs_etm_queue *etmq __maybe_unused, - u8 trace_chan_id __maybe_unused) -{ - return NULL; -} #endif #endif |