Merge tag 'perf-tools-for-v5.14-2021-07-01' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull perf tool updates from Arnaldo Carvalho de Melo:
 "Tools:

   - Add cgroup support for 'perf top' (-G).

   - Add support for KVM MSRs in 'perf kvm stat'

   - Support probes on init functions in 'perf probe', to support the
     bootconfig format.

   - Improve error reporting in 'perf probe'.

   - No need to synthesize BUILD_ID records in 'perf inject' if the
     MMAP2 records have build ids already.

   - Allow toggling source code ('s' hotkey) in 'perf annotate' in all
     lines.

   - Add itrace options support to 'perf annotate'.

   - Support to custom DSO filters for 'perf script'.

  Hardware enablement:

   - Support the HYBRID_TOPOLOGY and HYBRID_CPU_PMU_CAPS features in the
     perf.data file header.

   - Support PMU prefix for mem-load and mem-store events, to support
     hybrid (BIG little) CPUs such as Intel's Alderlake.

   - Support hybrid CPUs in 'perf mem' and 'perf c2c'.

  Hardware tracing:

   - Intel PT now supports tracing KVM guests.

   - Timestamp improvements for ARM's Coresight.

  Build:

   - Add 'make -C tools/perf build-test' entries for
     libopencsd/CORESIGHT=1 and libbpf/LIBBPF_DYNAMIC=1.

   - Use bison's --file-prefix-map option to avoid storing full paths
     when using O= in the perf build.

  Tests:

   - Improve the 'perf test' entries for libpfm4 and BPF counters.

  Misc:

   - Sync msr-index.h, mount.h, kvm headers with the kernel originals.

   - Add vendor events and metrics for Intel's Icelake Server & Client"

* tag 'perf-tools-for-v5.14-2021-07-01' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (123 commits)
  perf session: Add missing evlist__delete when deleting a session
  perf annotate: Allow 's' on source code lines
  perf dlfilter: Add object_code() to perf_dlfilter_fns
  perf dlfilter: Add attr() to perf_dlfilter_fns
  perf dlfilter: Add srcline() to perf_dlfilter_fns
  perf dlfilter: Add insn() to perf_dlfilter_fns
  perf dlfilter: Add resolve_address() to perf_dlfilter_fns
  perf build: Install perf_dlfilter.h
  perf script: Add option to pass arguments to dlfilters
  perf script: Add option to list dlfilters
  perf script: Add dlfilter__filter_event_early()
  perf script: Add API for filtering via dynamically loaded shared object
  perf llvm: Return -ENOMEM when asprintf() fails
  perf cs-etm: Delay decode of non-timeless data until cs_etm__flush_events()
  tools headers UAPI: Synch KVM's svm.h header with the kernel
  tools kvm headers arm64: Update KVM headers from the kernel sources
  tools headers UAPI: Sync linux/kvm.h with the kernel sources
  tools headers cpufeatures: Sync with the kernel sources
  tools include UAPI: Update linux/mount.h copy
  tools arch x86: Sync the msr-index.h copy with the kernel sources
  ...

1 files changed, 46 insertions, 7 deletions

diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h
index a4fbb33b7245..cc1c1b9cec9c 100644
--- a/tools/perf/util/auxtrace.h
+++ b/tools/perf/util/auxtrace.h
@@ -89,6 +89,10 @@ enum itrace_period_type {
  * @tlb: whether to synthesize TLB events
  * @remote_access: whether to synthesize remote access events
  * @mem: whether to synthesize memory events
+ * @timeless_decoding: prefer "timeless" decoding i.e. ignore timestamps
+ * @vm_time_correlation: perform VM Time Correlation
+ * @vm_tm_corr_dry_run: VM Time Correlation dry-run
+ * @vm_tm_corr_args:  VM Time Correlation implementation-specific arguments
  * @callchain_sz: maximum callchain size
  * @last_branch_sz: branch context size
  * @period: 'instructions' events period
@@ -128,6 +132,10 @@ struct itrace_synth_opts {
 	bool			tlb;
 	bool			remote_access;
 	bool			mem;
+	bool			timeless_decoding;
+	bool			vm_time_correlation;
+	bool			vm_tm_corr_dry_run;
+	char			*vm_tm_corr_args;
 	unsigned int		callchain_sz;
 	unsigned int		last_branch_sz;
 	unsigned long long	period;
@@ -444,7 +452,7 @@ static inline u64 auxtrace_mmap__read_snapshot_head(struct auxtrace_mmap *mm)
 	u64 head = READ_ONCE(pc->aux_head);
 
 	/* Ensure all reads are done after we read the head */
-	rmb();
+	smp_rmb();
 	return head;
 }
 
@@ -458,7 +466,7 @@ static inline u64 auxtrace_mmap__read_head(struct auxtrace_mmap *mm)
 #endif
 
 	/* Ensure all reads are done after we read the head */
-	rmb();
+	smp_rmb();
 	return head;
 }
 
@@ -470,7 +478,7 @@ static inline void auxtrace_mmap__write_tail(struct auxtrace_mmap *mm, u64 tail)
 #endif
 
 	/* Ensure all reads are done before we write the tail out */
-	mb();
+	smp_mb();
 #if BITS_PER_LONG == 64 || !defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT)
 	pc->aux_tail = tail;
 #else
@@ -525,7 +533,11 @@ int auxtrace_queue_data(struct perf_session *session, bool samples,
 			bool events);
 struct auxtrace_buffer *auxtrace_buffer__next(struct auxtrace_queue *queue,
 					      struct auxtrace_buffer *buffer);
-void *auxtrace_buffer__get_data(struct auxtrace_buffer *buffer, int fd);
+void *auxtrace_buffer__get_data_rw(struct auxtrace_buffer *buffer, int fd, bool rw);
+static inline void *auxtrace_buffer__get_data(struct auxtrace_buffer *buffer, int fd)
+{
+	return auxtrace_buffer__get_data_rw(buffer, fd, false);
+}
 void auxtrace_buffer__put_data(struct auxtrace_buffer *buffer);
 void auxtrace_buffer__drop_data(struct auxtrace_buffer *buffer);
 void auxtrace_buffer__free(struct auxtrace_buffer *buffer);
@@ -595,6 +607,8 @@ s64 perf_event__process_auxtrace(struct perf_session *session,
 				 union perf_event *event);
 int perf_event__process_auxtrace_error(struct perf_session *session,
 				       union perf_event *event);
+int itrace_do_parse_synth_opts(struct itrace_synth_opts *synth_opts,
+			       const char *str, int unset);
 int itrace_parse_synth_opts(const struct option *opt, const char *str,
 			    int unset);
 void itrace_synth_opts__set_default(struct itrace_synth_opts *synth_opts,
@@ -691,9 +705,26 @@ int auxtrace_record__options(struct auxtrace_record *itr __maybe_unused,
 	return 0;
 }
 
-#define perf_event__process_auxtrace_info		0
-#define perf_event__process_auxtrace			0
-#define perf_event__process_auxtrace_error		0
+static inline
+int perf_event__process_auxtrace_info(struct perf_session *session __maybe_unused,
+				      union perf_event *event __maybe_unused)
+{
+	return 0;
+}
+
+static inline
+s64 perf_event__process_auxtrace(struct perf_session *session __maybe_unused,
+				 union perf_event *event __maybe_unused)
+{
+	return 0;
+}
+
+static inline
+int perf_event__process_auxtrace_error(struct perf_session *session __maybe_unused,
+				       union perf_event *event __maybe_unused)
+{
+	return 0;
+}
 
 static inline
 void perf_session__auxtrace_error_inc(struct perf_session *session
@@ -710,6 +741,14 @@ void events_stats__auxtrace_error_warn(const struct events_stats *stats
 }
 
 static inline
+int itrace_do_parse_synth_opts(struct itrace_synth_opts *synth_opts __maybe_unused,
+			       const char *str __maybe_unused, int unset __maybe_unused)
+{
+	pr_err("AUX area tracing not supported\n");
+	return -EINVAL;
+}
+
+static inline
 int itrace_parse_synth_opts(const struct option *opt __maybe_unused,
 			    const char *str __maybe_unused,
 			    int unset __maybe_unused)