--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright IBM Corp. 2018
+ * Auxtrace support for s390 CPU-Measurement Sampling Facility
+ *
+ * Author(s): Thomas Richter <tmricht@linux.ibm.com>
+ */
+
+#include <endian.h>
+#include <errno.h>
+#include <byteswap.h>
+#include <inttypes.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/bitops.h>
+#include <linux/log2.h>
+
+#include "cpumap.h"
+#include "color.h"
+#include "evsel.h"
+#include "evlist.h"
+#include "machine.h"
+#include "session.h"
+#include "util.h"
+#include "thread.h"
+#include "debug.h"
+#include "auxtrace.h"
+#include "s390-cpumsf.h"
+
+struct s390_cpumsf {
+ struct auxtrace auxtrace;
+ struct auxtrace_queues queues;
+ struct auxtrace_heap heap;
+ struct perf_session *session;
+ struct machine *machine;
+ u32 auxtrace_type;
+ u32 pmu_type;
+};
+
+static int
+s390_cpumsf_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)
+{
+ return 0;
+}
+
+static int
+s390_cpumsf_process_auxtrace_event(struct perf_session *session __maybe_unused,
+ union perf_event *event __maybe_unused,
+ struct perf_tool *tool __maybe_unused)
+{
+ return 0;
+}
+
+static int s390_cpumsf_flush(struct perf_session *session __maybe_unused,
+ struct perf_tool *tool __maybe_unused)
+{
+ return 0;
+}
+
+static void s390_cpumsf_free_events(struct perf_session *session)
+{
+ struct s390_cpumsf *sf = container_of(session->auxtrace,
+ struct s390_cpumsf,
+ auxtrace);
+ struct auxtrace_queues *queues = &sf->queues;
+ unsigned int i;
+
+ for (i = 0; i < queues->nr_queues; i++)
+ zfree(&queues->queue_array[i].priv);
+ auxtrace_queues__free(queues);
+}
+
+static void s390_cpumsf_free(struct perf_session *session)
+{
+ struct s390_cpumsf *sf = container_of(session->auxtrace,
+ struct s390_cpumsf,
+ auxtrace);
+
+ auxtrace_heap__free(&sf->heap);
+ s390_cpumsf_free_events(session);
+ session->auxtrace = NULL;
+ free(sf);
+}
+
+int s390_cpumsf_process_auxtrace_info(union perf_event *event,
+ struct perf_session *session)
+{
+ struct auxtrace_info_event *auxtrace_info = &event->auxtrace_info;
+ struct s390_cpumsf *sf;
+ int err;
+
+ if (auxtrace_info->header.size < sizeof(struct auxtrace_info_event))
+ return -EINVAL;
+
+ sf = zalloc(sizeof(struct s390_cpumsf));
+ if (sf == NULL)
+ return -ENOMEM;
+
+ err = auxtrace_queues__init(&sf->queues);
+ if (err)
+ goto err_free;
+
+ sf->session = session;
+ sf->machine = &session->machines.host; /* No kvm support */
+ sf->auxtrace_type = auxtrace_info->type;
+ sf->pmu_type = PERF_TYPE_RAW;
+
+ sf->auxtrace.process_event = s390_cpumsf_process_event;
+ sf->auxtrace.process_auxtrace_event = s390_cpumsf_process_auxtrace_event;
+ sf->auxtrace.flush_events = s390_cpumsf_flush;
+ sf->auxtrace.free_events = s390_cpumsf_free_events;
+ sf->auxtrace.free = s390_cpumsf_free;
+ session->auxtrace = &sf->auxtrace;
+
+ return 0;
+
+err_free:
+ free(sf);
+ return err;
+}
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright IBM Corp. 2018
+ * Auxtrace support for s390 CPU-Measurement Sampling Facility
+ *
+ * Author(s): Thomas Richter <tmricht@linux.ibm.com>
+ */
+
+#ifndef INCLUDE__PERF_S390_CPUMSF_H
+#define INCLUDE__PERF_S390_CPUMSF_H
+
+union perf_event;
+struct perf_session;
+struct perf_pmu;
+
+struct auxtrace_record *
+s390_cpumsf_recording_init(int *err, struct perf_pmu *s390_cpumsf_pmu);
+
+int s390_cpumsf_process_auxtrace_info(union perf_event *event,
+ struct perf_session *session);
+#endif