perf arm-spe: Support synthetic events

After the commit ffd3d18c20b8 ("perf tools: Add ARM Statistical
Profiling Extensions (SPE) support") has been merged, it supports to
output raw data with option "--dump-raw-trace".  However, it misses for
support synthetic events so cannot output any statistical info.

This patch is to improve the "perf report" support for ARM SPE for four
types synthetic events:

  First level cache synthetic events, including L1 data cache accessing
  and missing events;
  Last level cache synthetic events, including last level cache
  accessing and missing events;
  TLB synthetic events, including TLB accessing and missing events;
  Remote access events, which is used to account load/store operations
  caused to another socket.

Example usage:

  $ perf record -c 1024 -e arm_spe_0/branch_filter=1,ts_enable=1,pct_enable=1,pa_enable=1,load_filter=1,jitter=1,store_filter=1,min_latency=0/ dd if=/dev/zero of=/dev/null count=10000
  $ perf report --stdio

  # Samples: 59  of event 'l1d-miss'
  # Event count (approx.): 59
  #
  # Children      Self  Command  Shared Object      Symbol
  # ........  ........  .......  .................  ..................................
  #
      23.73%    23.73%  dd       [kernel.kallsyms]  [k] perf_iterate_ctx.constprop.135
      20.34%    20.34%  dd       [kernel.kallsyms]  [k] filemap_map_pages
       5.08%     5.08%  dd       [kernel.kallsyms]  [k] perf_event_mmap
       5.08%     5.08%  dd       [kernel.kallsyms]  [k] unlock_page_memcg
       5.08%     5.08%  dd       [kernel.kallsyms]  [k] unmap_page_range
       3.39%     3.39%  dd       [kernel.kallsyms]  [k] PageHuge
       3.39%     3.39%  dd       [kernel.kallsyms]  [k] release_pages
       3.39%     3.39%  dd       ld-2.28.so         [.] 0x0000000000008b5c
       1.69%     1.69%  dd       [kernel.kallsyms]  [k] __alloc_fd
       [...]

  # Samples: 3K of event 'l1d-access'
  # Event count (approx.): 3980
  #
  # Children      Self  Command  Shared Object      Symbol
  # ........  ........  .......  .................  ......................................
  #
      26.98%    26.98%  dd       [kernel.kallsyms]  [k] ret_to_user
      10.53%    10.53%  dd       [kernel.kallsyms]  [k] fsnotify
       7.51%     7.51%  dd       [kernel.kallsyms]  [k] new_sync_read
       4.57%     4.57%  dd       [kernel.kallsyms]  [k] vfs_read
       4.35%     4.35%  dd       [kernel.kallsyms]  [k] vfs_write
       3.69%     3.69%  dd       [kernel.kallsyms]  [k] __fget_light
       3.69%     3.69%  dd       [kernel.kallsyms]  [k] rw_verify_area
       3.44%     3.44%  dd       [kernel.kallsyms]  [k] security_file_permission
       2.76%     2.76%  dd       [kernel.kallsyms]  [k] __fsnotify_parent
       2.44%     2.44%  dd       [kernel.kallsyms]  [k] ksys_write
       2.24%     2.24%  dd       [kernel.kallsyms]  [k] iov_iter_zero
       2.19%     2.19%  dd       [kernel.kallsyms]  [k] read_iter_zero
       1.81%     1.81%  dd       dd                 [.] 0x0000000000002960
       1.78%     1.78%  dd       dd                 [.] 0x0000000000002980
       [...]

  # Samples: 35  of event 'llc-miss'
  # Event count (approx.): 35
  #
  # Children      Self  Command  Shared Object      Symbol
  # ........  ........  .......  .................  ...........................
  #
      34.29%    34.29%  dd       [kernel.kallsyms]  [k] filemap_map_pages
       8.57%     8.57%  dd       [kernel.kallsyms]  [k] unlock_page_memcg
       8.57%     8.57%  dd       [kernel.kallsyms]  [k] unmap_page_range
       5.71%     5.71%  dd       [kernel.kallsyms]  [k] PageHuge
       5.71%     5.71%  dd       [kernel.kallsyms]  [k] release_pages
       5.71%     5.71%  dd       ld-2.28.so         [.] 0x0000000000008b5c
       2.86%     2.86%  dd       [kernel.kallsyms]  [k] __queue_work
       2.86%     2.86%  dd       [kernel.kallsyms]  [k] __radix_tree_lookup
       2.86%     2.86%  dd       [kernel.kallsyms]  [k] copy_page
       [...]

  # Samples: 2  of event 'llc-access'
  # Event count (approx.): 2
  #
  # Children      Self  Command  Shared Object      Symbol
  # ........  ........  .......  .................  .............
  #
      50.00%    50.00%  dd       [kernel.kallsyms]  [k] copy_page
      50.00%    50.00%  dd       libc-2.28.so       [.] _dl_addr

  # Samples: 48  of event 'tlb-miss'
  # Event count (approx.): 48
  #
  # Children      Self  Command  Shared Object      Symbol
  # ........  ........  .......  .................  ..................................
  #
      20.83%    20.83%  dd       [kernel.kallsyms]  [k] perf_iterate_ctx.constprop.135
      12.50%    12.50%  dd       [kernel.kallsyms]  [k] __arch_clear_user
      10.42%    10.42%  dd       [kernel.kallsyms]  [k] clear_page
       4.17%     4.17%  dd       [kernel.kallsyms]  [k] copy_page
       4.17%     4.17%  dd       [kernel.kallsyms]  [k] filemap_map_pages
       2.08%     2.08%  dd       [kernel.kallsyms]  [k] __alloc_fd
       2.08%     2.08%  dd       [kernel.kallsyms]  [k] __mod_memcg_state.part.70
       2.08%     2.08%  dd       [kernel.kallsyms]  [k] __queue_work
       2.08%     2.08%  dd       [kernel.kallsyms]  [k] __rcu_read_unlock
       2.08%     2.08%  dd       [kernel.kallsyms]  [k] d_path
       2.08%     2.08%  dd       [kernel.kallsyms]  [k] destroy_inode
       2.08%     2.08%  dd       [kernel.kallsyms]  [k] do_dentry_open
       [...]

  # Samples: 9K of event 'tlb-access'
  # Event count (approx.): 9573
  #
  # Children      Self  Command  Shared Object      Symbol
  # ........  ........  .......  .................  ......................................
  #
      25.79%    25.79%  dd       [kernel.kallsyms]  [k] __arch_clear_user
      11.22%    11.22%  dd       [kernel.kallsyms]  [k] ret_to_user
       8.56%     8.56%  dd       [kernel.kallsyms]  [k] fsnotify
       4.06%     4.06%  dd       [kernel.kallsyms]  [k] new_sync_read
       3.67%     3.67%  dd       [kernel.kallsyms]  [k] el0_svc_common.constprop.2
       3.04%     3.04%  dd       [kernel.kallsyms]  [k] __fsnotify_parent
       2.90%     2.90%  dd       [kernel.kallsyms]  [k] vfs_write
       2.82%     2.82%  dd       [kernel.kallsyms]  [k] vfs_read
       2.52%     2.52%  dd       libc-2.28.so       [.] write
       2.26%     2.26%  dd       [kernel.kallsyms]  [k] security_file_permission
       2.08%     2.08%  dd       [kernel.kallsyms]  [k] ksys_write
       1.96%     1.96%  dd       [kernel.kallsyms]  [k] rw_verify_area
       1.95%     1.95%  dd       [kernel.kallsyms]  [k] read_iter_zero
       [...]

  # Samples: 9  of event 'branch-miss'
  # Event count (approx.): 9
  #
  # Children      Self  Command  Shared Object      Symbol
  # ........  ........  .......  .................  .........................
  #
      22.22%    22.22%  dd       libc-2.28.so       [.] _dl_addr
      11.11%    11.11%  dd       [kernel.kallsyms]  [k] __arch_clear_user
      11.11%    11.11%  dd       [kernel.kallsyms]  [k] __arch_copy_from_user
      11.11%    11.11%  dd       [kernel.kallsyms]  [k] __dentry_kill
      11.11%    11.11%  dd       [kernel.kallsyms]  [k] __efistub_memcpy
      11.11%    11.11%  dd       ld-2.28.so         [.] 0x0000000000012b7c
      11.11%    11.11%  dd       libc-2.28.so       [.] 0x000000000002a980
      11.11%    11.11%  dd       libc-2.28.so       [.] 0x0000000000083340

  # Samples: 29  of event 'remote-access'
  # Event count (approx.): 29
  #
  # Children      Self  Command  Shared Object      Symbol
  # ........  ........  .......  .................  ...........................
  #
      41.38%    41.38%  dd       [kernel.kallsyms]  [k] filemap_map_pages
      10.34%    10.34%  dd       [kernel.kallsyms]  [k] unlock_page_memcg
      10.34%    10.34%  dd       [kernel.kallsyms]  [k] unmap_page_range
       6.90%     6.90%  dd       [kernel.kallsyms]  [k] release_pages
       3.45%     3.45%  dd       [kernel.kallsyms]  [k] PageHuge
       3.45%     3.45%  dd       [kernel.kallsyms]  [k] __queue_work
       3.45%     3.45%  dd       [kernel.kallsyms]  [k] page_add_file_rmap
       3.45%     3.45%  dd       [kernel.kallsyms]  [k] page_counter_try_charge
       3.45%     3.45%  dd       [kernel.kallsyms]  [k] page_remove_rmap
       3.45%     3.45%  dd       [kernel.kallsyms]  [k] xas_start
       3.45%     3.45%  dd       ld-2.28.so         [.] 0x0000000000002a1c
       3.45%     3.45%  dd       ld-2.28.so         [.] 0x0000000000008b5c
       3.45%     3.45%  dd       ld-2.28.so         [.] 0x00000000000093cc

Signed-off-by: Tan Xiaojun <tanxiaojun@huawei.com>
Tested-by: James Clark <james.clark@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Al Grant <al.grant@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lore.kernel.org/lkml/20200530122442.490-4-leo.yan@linaro.org
Signed-off-by: James Clark <james.clark@arm.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 779 insertions, 42 deletions

diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c
index 235de3d0b062..3882a5360ada 100644
--- a/tools/perf/util/arm-spe.c
+++ b/tools/perf/util/arm-spe.c
@@ -4,46 +4,85 @@
  * Copyright (c) 2017-2018, Arm Ltd.
  */
 
+#include <byteswap.h>
 #include <endian.h>
 #include <errno.h>
-#include <byteswap.h>
 #include <inttypes.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
 #include <linux/bitops.h>
+#include <linux/kernel.h>
 #include <linux/log2.h>
+#include <linux/types.h>
 #include <linux/zalloc.h>
+#include <stdlib.h>
+#include <unistd.h>
 
+#include "auxtrace.h"
 #include "color.h"
+#include "debug.h"
+#include "evlist.h"
 #include "evsel.h"
 #include "machine.h"
 #include "session.h"
-#include "debug.h"
-#include "auxtrace.h"
+#include "symbol.h"
+#include "thread.h"
+#include "thread-stack.h"
+#include "tool.h"
+#include "util/synthetic-events.h"
+
 #include "arm-spe.h"
+#include "arm-spe-decoder/arm-spe-decoder.h"
 #include "arm-spe-decoder/arm-spe-pkt-decoder.h"
 
+#define MAX_TIMESTAMP (~0ULL)
+
 struct arm_spe {
 	struct auxtrace			auxtrace;
 	struct auxtrace_queues		queues;
 	struct auxtrace_heap		heap;
+	struct itrace_synth_opts        synth_opts;
 	u32				auxtrace_type;
 	struct perf_session		*session;
 	struct machine			*machine;
 	u32				pmu_type;
+
+	u8				timeless_decoding;
+	u8				data_queued;
+
+	u8				sample_flc;
+	u8				sample_llc;
+	u8				sample_tlb;
+	u8				sample_branch;
+	u8				sample_remote_access;
+
+	u64				l1d_miss_id;
+	u64				l1d_access_id;
+	u64				llc_miss_id;
+	u64				llc_access_id;
+	u64				tlb_miss_id;
+	u64				tlb_access_id;
+	u64				branch_miss_id;
+	u64				remote_access_id;
+
+	u64				kernel_start;
+
+	unsigned long			num_events;
 };
 
 struct arm_spe_queue {
-	struct arm_spe		*spe;
-	unsigned int		queue_nr;
-	struct auxtrace_buffer	*buffer;
-	bool			on_heap;
-	bool			done;
-	pid_t			pid;
-	pid_t			tid;
-	int			cpu;
+	struct arm_spe			*spe;
+	unsigned int			queue_nr;
+	struct auxtrace_buffer		*buffer;
+	struct auxtrace_buffer		*old_buffer;
+	union perf_event		*event_buf;
+	bool				on_heap;
+	bool				done;
+	pid_t				pid;
+	pid_t				tid;
+	int				cpu;
+	struct arm_spe_decoder		*decoder;
+	u64				time;
+	u64				timestamp;
+	struct thread			*thread;
 };
 
 static void arm_spe_dump(struct arm_spe *spe __maybe_unused,
@@ -92,44 +131,520 @@ static void arm_spe_dump_event(struct arm_spe *spe, unsigned char *buf,
 	arm_spe_dump(spe, buf, len);
 }
 
-static int arm_spe_process_event(struct perf_session *session __maybe_unused,
-				 union perf_event *event __maybe_unused,
-				 struct perf_sample *sample __maybe_unused,
-				 struct perf_tool *tool __maybe_unused)
+static int arm_spe_get_trace(struct arm_spe_buffer *b, void *data)
+{
+	struct arm_spe_queue *speq = data;
+	struct auxtrace_buffer *buffer = speq->buffer;
+	struct auxtrace_buffer *old_buffer = speq->old_buffer;
+	struct auxtrace_queue *queue;
+
+	queue = &speq->spe->queues.queue_array[speq->queue_nr];
+
+	buffer = auxtrace_buffer__next(queue, buffer);
+	/* If no more data, drop the previous auxtrace_buffer and return */
+	if (!buffer) {
+		if (old_buffer)
+			auxtrace_buffer__drop_data(old_buffer);
+		b->len = 0;
+		return 0;
+	}
+
+	speq->buffer = buffer;
+
+	/* If the aux_buffer doesn't have data associated, try to load it */
+	if (!buffer->data) {
+		/* get the file desc associated with the perf data file */
+		int fd = perf_data__fd(speq->spe->session->data);
+
+		buffer->data = auxtrace_buffer__get_data(buffer, fd);
+		if (!buffer->data)
+			return -ENOMEM;
+	}
+
+	b->len = buffer->size;
+	b->buf = buffer->data;
+
+	if (b->len) {
+		if (old_buffer)
+			auxtrace_buffer__drop_data(old_buffer);
+		speq->old_buffer = buffer;
+	} else {
+		auxtrace_buffer__drop_data(buffer);
+		return arm_spe_get_trace(b, data);
+	}
+
+	return 0;
+}
+
+static struct arm_spe_queue *arm_spe__alloc_queue(struct arm_spe *spe,
+		unsigned int queue_nr)
+{
+	struct arm_spe_params params = { .get_trace = 0, };
+	struct arm_spe_queue *speq;
+
+	speq = zalloc(sizeof(*speq));
+	if (!speq)
+		return NULL;
+
+	speq->event_buf = malloc(PERF_SAMPLE_MAX_SIZE);
+	if (!speq->event_buf)
+		goto out_free;
+
+	speq->spe = spe;
+	speq->queue_nr = queue_nr;
+	speq->pid = -1;
+	speq->tid = -1;
+	speq->cpu = -1;
+
+	/* params set */
+	params.get_trace = arm_spe_get_trace;
+	params.data = speq;
+
+	/* create new decoder */
+	speq->decoder = arm_spe_decoder_new(&params);
+	if (!speq->decoder)
+		goto out_free;
+
+	return speq;
+
+out_free:
+	zfree(&speq->event_buf);
+	free(speq);
+
+	return NULL;
+}
+
+static inline u8 arm_spe_cpumode(struct arm_spe *spe, u64 ip)
+{
+	return ip >= spe->kernel_start ?
+		PERF_RECORD_MISC_KERNEL :
+		PERF_RECORD_MISC_USER;
+}
+
+static void arm_spe_prep_sample(struct arm_spe *spe,
+				struct arm_spe_queue *speq,
+				union perf_event *event,
+				struct perf_sample *sample)
+{
+	struct arm_spe_record *record = &speq->decoder->record;
+
+	if (!spe->timeless_decoding)
+		sample->time = speq->timestamp;
+
+	sample->ip = record->from_ip;
+	sample->cpumode = arm_spe_cpumode(spe, sample->ip);
+	sample->pid = speq->pid;
+	sample->tid = speq->tid;
+	sample->addr = record->to_ip;
+	sample->period = 1;
+	sample->cpu = speq->cpu;
+
+	event->sample.header.type = PERF_RECORD_SAMPLE;
+	event->sample.header.misc = sample->cpumode;
+	event->sample.header.size = sizeof(struct perf_event_header);
+}
+
+static inline int
+arm_spe_deliver_synth_event(struct arm_spe *spe,
+			    struct arm_spe_queue *speq __maybe_unused,
+			    union perf_event *event,
+			    struct perf_sample *sample)
+{
+	int ret;
+
+	ret = perf_session__deliver_synth_event(spe->session, event, sample);
+	if (ret)
+		pr_err("ARM SPE: failed to deliver event, error %d\n", ret);
+
+	return ret;
+}
+
+static int
+arm_spe_synth_spe_events_sample(struct arm_spe_queue *speq,
+				u64 spe_events_id)
+{
+	struct arm_spe *spe = speq->spe;
+	union perf_event *event = speq->event_buf;
+	struct perf_sample sample = { .ip = 0, };
+
+	arm_spe_prep_sample(spe, speq, event, &sample);
+
+	sample.id = spe_events_id;
+	sample.stream_id = spe_events_id;
+
+	return arm_spe_deliver_synth_event(spe, speq, event, &sample);
+}
+
+static int arm_spe_sample(struct arm_spe_queue *speq)
+{
+	const struct arm_spe_record *record = &speq->decoder->record;
+	struct arm_spe *spe = speq->spe;
+	int err;
+
+	if (spe->sample_flc) {
+		if (record->type & ARM_SPE_L1D_MISS) {
+			err = arm_spe_synth_spe_events_sample(
+					speq, spe->l1d_miss_id);
+			if (err)
+				return err;
+		}
+
+		if (record->type & ARM_SPE_L1D_ACCESS) {
+			err = arm_spe_synth_spe_events_sample(
+					speq, spe->l1d_access_id);
+			if (err)
+				return err;
+		}
+	}
+
+	if (spe->sample_llc) {
+		if (record->type & ARM_SPE_LLC_MISS) {
+			err = arm_spe_synth_spe_events_sample(
+					speq, spe->llc_miss_id);
+			if (err)
+				return err;
+		}
+
+		if (record->type & ARM_SPE_LLC_ACCESS) {
+			err = arm_spe_synth_spe_events_sample(
+					speq, spe->llc_access_id);
+			if (err)
+				return err;
+		}
+	}
+
+	if (spe->sample_tlb) {
+		if (record->type & ARM_SPE_TLB_MISS) {
+			err = arm_spe_synth_spe_events_sample(
+					speq, spe->tlb_miss_id);
+			if (err)
+				return err;
+		}
+
+		if (record->type & ARM_SPE_TLB_ACCESS) {
+			err = arm_spe_synth_spe_events_sample(
+					speq, spe->tlb_access_id);
+			if (err)
+				return err;
+		}
+	}
+
+	if (spe->sample_branch && (record->type & ARM_SPE_BRANCH_MISS)) {
+		err = arm_spe_synth_spe_events_sample(speq,
+						      spe->branch_miss_id);
+		if (err)
+			return err;
+	}
+
+	if (spe->sample_remote_access &&
+	    (record->type & ARM_SPE_REMOTE_ACCESS)) {
+		err = arm_spe_synth_spe_events_sample(speq,
+						      spe->remote_access_id);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
+static int arm_spe_run_decoder(struct arm_spe_queue *speq, u64 *timestamp)
+{
+	struct arm_spe *spe = speq->spe;
+	int ret;
+
+	if (!spe->kernel_start)
+		spe->kernel_start = machine__kernel_start(spe->machine);
+
+	while (1) {
+		ret = arm_spe_decode(speq->decoder);
+		if (!ret) {
+			pr_debug("No data or all data has been processed.\n");
+			return 1;
+		}
+
+		/*
+		 * Error is detected when decode SPE trace data, continue to
+		 * the next trace data and find out more records.
+		 */
+		if (ret < 0)
+			continue;
+
+		ret = arm_spe_sample(speq);
+		if (ret)
+			return ret;
+
+		if (!spe->timeless_decoding && speq->timestamp >= *timestamp) {
+			*timestamp = speq->timestamp;
+			return 0;
+		}
+	}
+
+	return 0;
+}
+
+static int arm_spe__setup_queue(struct arm_spe *spe,
+			       struct auxtrace_queue *queue,
+			       unsigned int queue_nr)
+{
+	struct arm_spe_queue *speq = queue->priv;
+	struct arm_spe_record *record;
+
+	if (list_empty(&queue->head) || speq)
+		return 0;
+
+	speq = arm_spe__alloc_queue(spe, queue_nr);
+
+	if (!speq)
+		return -ENOMEM;
+
+	queue->priv = speq;
+
+	if (queue->cpu != -1)
+		speq->cpu = queue->cpu;
+
+	if (!speq->on_heap) {
+		int ret;
+
+		if (spe->timeless_decoding)
+			return 0;
+
+retry:
+		ret = arm_spe_decode(speq->decoder);
+
+		if (!ret)
+			return 0;
+
+		if (ret < 0)
+			goto retry;
+
+		record = &speq->decoder->record;
+
+		speq->timestamp = record->timestamp;
+		ret = auxtrace_heap__add(&spe->heap, queue_nr, speq->timestamp);
+		if (ret)
+			return ret;
+		speq->on_heap = true;
+	}
+
+	return 0;
+}
+
+static int arm_spe__setup_queues(struct arm_spe *spe)
+{
+	unsigned int i;
+	int ret;
+
+	for (i = 0; i < spe->queues.nr_queues; i++) {
+		ret = arm_spe__setup_queue(spe, &spe->queues.queue_array[i], i);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int arm_spe__update_queues(struct arm_spe *spe)
 {
+	if (spe->queues.new_data) {
+		spe->queues.new_data = false;
+		return arm_spe__setup_queues(spe);
+	}
+
 	return 0;
 }
 
+static bool arm_spe__is_timeless_decoding(struct arm_spe *spe)
+{
+	struct evsel *evsel;
+	struct evlist *evlist = spe->session->evlist;
+	bool timeless_decoding = true;
+
+	/*
+	 * Circle through the list of event and complain if we find one
+	 * with the time bit set.
+	 */
+	evlist__for_each_entry(evlist, evsel) {
+		if ((evsel->core.attr.sample_type & PERF_SAMPLE_TIME))
+			timeless_decoding = false;
+	}
+
+	return timeless_decoding;
+}
+
+static void arm_spe_set_pid_tid_cpu(struct arm_spe *spe,
+				    struct auxtrace_queue *queue)
+{
+	struct arm_spe_queue *speq = queue->priv;
+	pid_t tid;
+
+	tid = machine__get_current_tid(spe->machine, speq->cpu);
+	if (tid != -1) {
+		speq->tid = tid;
+		thread__zput(speq->thread);
+	} else
+		speq->tid = queue->tid;
+
+	if ((!speq->thread) && (speq->tid != -1)) {
+		speq->thread = machine__find_thread(spe->machine, -1,
+						    speq->tid);
+	}
+
+	if (speq->thread) {
+		speq->pid = speq->thread->pid_;
+		if (queue->cpu == -1)
+			speq->cpu = speq->thread->cpu;
+	}
+}
+
+static int arm_spe_process_queues(struct arm_spe *spe, u64 timestamp)
+{
+	unsigned int queue_nr;
+	u64 ts;
+	int ret;
+
+	while (1) {
+		struct auxtrace_queue *queue;
+		struct arm_spe_queue *speq;
+
+		if (!spe->heap.heap_cnt)
+			return 0;
+
+		if (spe->heap.heap_array[0].ordinal >= timestamp)
+			return 0;
+
+		queue_nr = spe->heap.heap_array[0].queue_nr;
+		queue = &spe->queues.queue_array[queue_nr];
+		speq = queue->priv;
+
+		auxtrace_heap__pop(&spe->heap);
+
+		if (spe->heap.heap_cnt) {
+			ts = spe->heap.heap_array[0].ordinal + 1;
+			if (ts > timestamp)
+				ts = timestamp;
+		} else {
+			ts = timestamp;
+		}
+
+		arm_spe_set_pid_tid_cpu(spe, queue);
+
+		ret = arm_spe_run_decoder(speq, &ts);
+		if (ret < 0) {
+			auxtrace_heap__add(&spe->heap, queue_nr, ts);
+			return ret;
+		}
+
+		if (!ret) {
+			ret = auxtrace_heap__add(&spe->heap, queue_nr, ts);
+			if (ret < 0)
+				return ret;
+		} else {
+			speq->on_heap = false;
+		}
+	}
+
+	return 0;
+}
+
+static int arm_spe_process_timeless_queues(struct arm_spe *spe, pid_t tid,
+					    u64 time_)
+{
+	struct auxtrace_queues *queues = &spe->queues;
+	unsigned int i;
+	u64 ts = 0;
+
+	for (i = 0; i < queues->nr_queues; i++) {
+		struct auxtrace_queue *queue = &spe->queues.queue_array[i];
+		struct arm_spe_queue *speq = queue->priv;
+
+		if (speq && (tid == -1 || speq->tid == tid)) {
+			speq->time = time_;
+			arm_spe_set_pid_tid_cpu(spe, queue);
+			arm_spe_run_decoder(speq, &ts);
+		}
+	}
+	return 0;
+}
+
+static int arm_spe_process_event(struct perf_session *session,
+				 union perf_event *event,
+				 struct perf_sample *sample,
+				 struct perf_tool *tool)
+{
+	int err = 0;
+	u64 timestamp;
+	struct arm_spe *spe = container_of(session->auxtrace,
+			struct arm_spe, auxtrace);
+
+	if (dump_trace)
+		return 0;
+
+	if (!tool->ordered_events) {
+		pr_err("SPE trace requires ordered events\n");
+		return -EINVAL;
+	}
+
+	if (sample->time && (sample->time != (u64) -1))
+		timestamp = sample->time;
+	else
+		timestamp = 0;
+
+	if (timestamp || spe->timeless_decoding) {
+		err = arm_spe__update_queues(spe);
+		if (err)
+			return err;
+	}
+
+	if (spe->timeless_decoding) {
+		if (event->header.type == PERF_RECORD_EXIT) {
+			err = arm_spe_process_timeless_queues(spe,
+					event->fork.tid,
+					sample->time);
+		}
+	} else if (timestamp) {
+		if (event->header.type == PERF_RECORD_EXIT) {
+			err = arm_spe_process_queues(spe, timestamp);
+			if (err)
+				return err;
+		}
+	}
+
+	return err;
+}
+
 static int arm_spe_process_auxtrace_event(struct perf_session *session,
 					  union perf_event *event,
 					  struct perf_tool *tool __maybe_unused)
 {
 	struct arm_spe *spe = container_of(session->auxtrace, struct arm_spe,
 					     auxtrace);
-	struct auxtrace_buffer *buffer;
-	off_t data_offset;
-	int fd = perf_data__fd(session->data);
-	int err;
 
-	if (perf_data__is_pipe(session->data)) {
-		data_offset = 0;
-	} else {
-		data_offset = lseek(fd, 0, SEEK_CUR);
-		if (data_offset == -1)
-			return -errno;
-	}
+	if (!spe->data_queued) {
+		struct auxtrace_buffer *buffer;
+		off_t data_offset;
+		int fd = perf_data__fd(session->data);
+		int err;
 
-	err = auxtrace_queues__add_event(&spe->queues, session, event,
-					 data_offset, &buffer);
-	if (err)
-		return err;
+		if (perf_data__is_pipe(session->data)) {
+			data_offset = 0;
+		} else {
+			data_offset = lseek(fd, 0, SEEK_CUR);
+			if (data_offset == -1)
+				return -errno;
+		}
 
-	/* Dump here now we have copied a piped trace out of the pipe */
-	if (dump_trace) {
-		if (auxtrace_buffer__get_data(buffer, fd)) {
-			arm_spe_dump_event(spe, buffer->data,
-					     buffer->size);
-			auxtrace_buffer__put_data(buffer);
+		err = auxtrace_queues__add_event(&spe->queues, session, event,
+				data_offset, &buffer);
+		if (err)
+			return err;
+
+		/* Dump here now we have copied a piped trace out of the pipe */
+		if (dump_trace) {
+			if (auxtrace_buffer__get_data(buffer, fd)) {
+				arm_spe_dump_event(spe, buffer->data,
+						buffer->size);
+				auxtrace_buffer__put_data(buffer);
+			}
 		}
 	}
 
@@ -139,7 +654,25 @@ static int arm_spe_process_auxtrace_event(struct perf_session *session,
 static int arm_spe_flush(struct perf_session *session __maybe_unused,
 			 struct perf_tool *tool __maybe_unused)
 {
-	return 0;
+	struct arm_spe *spe = container_of(session->auxtrace, struct arm_spe,
+			auxtrace);
+	int ret;
+
+	if (dump_trace)
+		return 0;
+
+	if (!tool->ordered_events)
+		return -EINVAL;
+
+	ret = arm_spe__update_queues(spe);
+	if (ret < 0)
+		return ret;
+
+	if (spe->timeless_decoding)
+		return arm_spe_process_timeless_queues(spe, -1,
+				MAX_TIMESTAMP - 1);
+
+	return arm_spe_process_queues(spe, MAX_TIMESTAMP);
 }
 
 static void arm_spe_free_queue(void *priv)
@@ -148,6 +681,9 @@ static void arm_spe_free_queue(void *priv)
 
 	if (!speq)
 		return;
+	thread__zput(speq->thread);
+	arm_spe_decoder_free(speq->decoder);
+	zfree(&speq->event_buf);
 	free(speq);
 }
 
@@ -196,11 +732,189 @@ static void arm_spe_print_info(__u64 *arr)
 	fprintf(stdout, arm_spe_info_fmts[ARM_SPE_PMU_TYPE], arr[ARM_SPE_PMU_TYPE]);
 }
 
+struct arm_spe_synth {
+	struct perf_tool dummy_tool;
+	struct perf_session *session;
+};
+
+static int arm_spe_event_synth(struct perf_tool *tool,
+			       union perf_event *event,
+			       struct perf_sample *sample __maybe_unused,
+			       struct machine *machine __maybe_unused)
+{
+	struct arm_spe_synth *arm_spe_synth =
+		      container_of(tool, struct arm_spe_synth, dummy_tool);
+
+	return perf_session__deliver_synth_event(arm_spe_synth->session,
+						 event, NULL);
+}
+
+static int arm_spe_synth_event(struct perf_session *session,
+			       struct perf_event_attr *attr, u64 id)
+{
+	struct arm_spe_synth arm_spe_synth;
+
+	memset(&arm_spe_synth, 0, sizeof(struct arm_spe_synth));
+	arm_spe_synth.session = session;
+
+	return perf_event__synthesize_attr(&arm_spe_synth.dummy_tool, attr, 1,
+					   &id, arm_spe_event_synth);
+}
+
+static void arm_spe_set_event_name(struct evlist *evlist, u64 id,
+				    const char *name)
+{
+	struct evsel *evsel;
+
+	evlist__for_each_entry(evlist, evsel) {
+		if (evsel->core.id && evsel->core.id[0] == id) {
+			if (evsel->name)
+				zfree(&evsel->name);
+			evsel->name = strdup(name);
+			break;
+		}
+	}
+}
+
+static int
+arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
+{
+	struct evlist *evlist = session->evlist;
+	struct evsel *evsel;
+	struct perf_event_attr attr;
+	bool found = false;
+	u64 id;
+	int err;
+
+	evlist__for_each_entry(evlist, evsel) {
+		if (evsel->core.attr.type == spe->pmu_type) {
+			found = true;
+			break;
+		}
+	}
+
+	if (!found) {
+		pr_debug("No selected events with SPE trace data\n");
+		return 0;
+	}
+
+	memset(&attr, 0, sizeof(struct perf_event_attr));
+	attr.size = sizeof(struct perf_event_attr);
+	attr.type = PERF_TYPE_HARDWARE;
+	attr.sample_type = evsel->core.attr.sample_type & PERF_SAMPLE_MASK;
+	attr.sample_type |= PERF_SAMPLE_IP | PERF_SAMPLE_TID |
+		PERF_SAMPLE_PERIOD;
+	if (spe->timeless_decoding)
+		attr.sample_type &= ~(u64)PERF_SAMPLE_TIME;
+	else
+		attr.sample_type |= PERF_SAMPLE_TIME;
+
+	attr.exclude_user = evsel->core.attr.exclude_user;
+	attr.exclude_kernel = evsel->core.attr.exclude_kernel;
+	attr.exclude_hv = evsel->core.attr.exclude_hv;
+	attr.exclude_host = evsel->core.attr.exclude_host;
+	attr.exclude_guest = evsel->core.attr.exclude_guest;
+	attr.sample_id_all = evsel->core.attr.sample_id_all;
+	attr.read_format = evsel->core.attr.read_format;
+
+	/* create new id val to be a fixed offset from evsel id */
+	id = evsel->core.id[0] + 1000000000;
+
+	if (!id)
+		id = 1;
+
+	if (spe->synth_opts.flc) {
+		spe->sample_flc = true;
+
+		/* Level 1 data cache miss */
+		err = arm_spe_synth_event(session, &attr, id);
+		if (err)
+			return err;
+		spe->l1d_miss_id = id;
+		arm_spe_set_event_name(evlist, id, "l1d-miss");
+		id += 1;
+
+		/* Level 1 data cache access */
+		err = arm_spe_synth_event(session, &attr, id);
+		if (err)
+			return err;
+		spe->l1d_access_id = id;
+		arm_spe_set_event_name(evlist, id, "l1d-access");
+		id += 1;
+	}
+
+	if (spe->synth_opts.llc) {
+		spe->sample_llc = true;
+
+		/* Last level cache miss */
+		err = arm_spe_synth_event(session, &attr, id);
+		if (err)
+			return err;
+		spe->llc_miss_id = id;
+		arm_spe_set_event_name(evlist, id, "llc-miss");
+		id += 1;
+
+		/* Last level cache access */
+		err = arm_spe_synth_event(session, &attr, id);
+		if (err)
+			return err;
+		spe->llc_access_id = id;
+		arm_spe_set_event_name(evlist, id, "llc-access");
+		id += 1;
+	}
+
+	if (spe->synth_opts.tlb) {
+		spe->sample_tlb = true;
+
+		/* TLB miss */
+		err = arm_spe_synth_event(session, &attr, id);
+		if (err)
+			return err;
+		spe->tlb_miss_id = id;
+		arm_spe_set_event_name(evlist, id, "tlb-miss");
+		id += 1;
+
+		/* TLB access */
+		err = arm_spe_synth_event(session, &attr, id);
+		if (err)
+			return err;
+		spe->tlb_access_id = id;
+		arm_spe_set_event_name(evlist, id, "tlb-access");
+		id += 1;
+	}
+
+	if (spe->synth_opts.branches) {
+		spe->sample_branch = true;
+
+		/* Branch miss */
+		err = arm_spe_synth_event(session, &attr, id);
+		if (err)
+			return err;
+		spe->branch_miss_id = id;
+		arm_spe_set_event_name(evlist, id, "branch-miss");
+		id += 1;
+	}
+
+	if (spe->synth_opts.remote_access) {
+		spe->sample_remote_access = true;
+
+		/* Remote access */
+		err = arm_spe_synth_event(session, &attr, id);
+		if (err)
+			return err;
+		spe->remote_access_id = id;
+		arm_spe_set_event_name(evlist, id, "remote-access");
+		id += 1;
+	}
+
+	return 0;
+}
+
 int arm_spe_process_auxtrace_info(union perf_event *event,
 				  struct perf_session *session)
 {
 	struct perf_record_auxtrace_info *auxtrace_info = &event->auxtrace_info;
-	size_t min_sz = sizeof(u64) * ARM_SPE_PMU_TYPE;
+	size_t min_sz = sizeof(u64) * ARM_SPE_AUXTRACE_PRIV_MAX;
 	struct arm_spe *spe;
 	int err;
 
@@ -221,6 +935,7 @@ int arm_spe_process_auxtrace_info(union perf_event *event,
 	spe->auxtrace_type = auxtrace_info->type;
 	spe->pmu_type = auxtrace_info->priv[ARM_SPE_PMU_TYPE];
 
+	spe->timeless_decoding = arm_spe__is_timeless_decoding(spe);
 	spe->auxtrace.process_event = arm_spe_process_event;
 	spe->auxtrace.process_auxtrace_event = arm_spe_process_auxtrace_event;
 	spe->auxtrace.flush_events = arm_spe_flush;
@@ -231,8 +946,30 @@ int arm_spe_process_auxtrace_info(union perf_event *event,
 
 	arm_spe_print_info(&auxtrace_info->priv[0]);
 
+	if (dump_trace)
+		return 0;
+
+	if (session->itrace_synth_opts && session->itrace_synth_opts->set)
+		spe->synth_opts = *session->itrace_synth_opts;
+	else
+		itrace_synth_opts__set_default(&spe->synth_opts, false);
+
+	err = arm_spe_synth_events(spe, session);
+	if (err)
+		goto err_free_queues;
+
+	err = auxtrace_queues__process_index(&spe->queues, session);
+	if (err)
+		goto err_free_queues;
+
+	if (spe->queues.populated)
+		spe->data_queued = true;
+
 	return 0;
 
+err_free_queues:
+	auxtrace_queues__free(&spe->queues);
+	session->auxtrace = NULL;
 err_free:
 	free(spe);
 	return err;