Merge tag 'v4.8' into next

Sync up with mainline to bring in I2C host notify changes and other
updates.

5 files changed, 175 insertions, 24 deletions

diff --git a/tools/perf/scripts/python/bin/stackcollapse-record b/tools/perf/scripts/python/bin/stackcollapse-record
new file mode 100755
index 000000000000..9d8f9f0f3a17
--- /dev/null
+++ b/tools/perf/scripts/python/bin/stackcollapse-record
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+#
+# stackcollapse.py can cover all type of perf samples including
+# the tracepoints, so no special record requirements, just record what
+# you want to analyze.
+#
+perf record "$@"
diff --git a/tools/perf/scripts/python/bin/stackcollapse-report b/tools/perf/scripts/python/bin/stackcollapse-report
new file mode 100755
index 000000000000..356b9656393d
--- /dev/null
+++ b/tools/perf/scripts/python/bin/stackcollapse-report
@@ -0,0 +1,3 @@
+#!/bin/sh
+# description: produce callgraphs in short form for scripting use
+perf script -s "$PERF_EXEC_PATH"/scripts/python/stackcollapse.py -- "$@"
diff --git a/tools/perf/scripts/python/export-to-postgresql.py b/tools/perf/scripts/python/export-to-postgresql.py
index 1b02cdc0cab6..7656ff8aa066 100644
--- a/tools/perf/scripts/python/export-to-postgresql.py
+++ b/tools/perf/scripts/python/export-to-postgresql.py
@@ -34,10 +34,9 @@ import datetime
 #
 # ubuntu:
 #
-#	$ sudo apt-get install postgresql
+#	$ sudo apt-get install postgresql python-pyside.qtsql libqt4-sql-psql
 #	$ sudo su - postgres
-#	$ createuser <your user id here>
-#	Shall the new role be a superuser? (y/n) y
+#	$ createuser -s <your user id here>
 #
 # An example of using this script with Intel PT:
 #
@@ -224,11 +223,14 @@ sys.path.append(os.environ['PERF_EXEC_PATH'] + \
 
 perf_db_export_mode = True
 perf_db_export_calls = False
+perf_db_export_callchains = False
+
 
 def usage():
-	print >> sys.stderr, "Usage is: export-to-postgresql.py <database name> [<columns>] [<calls>]"
+	print >> sys.stderr, "Usage is: export-to-postgresql.py <database name> [<columns>] [<calls>] [<callchains>]"
 	print >> sys.stderr, "where:	columns		'all' or 'branches'"
-	print >> sys.stderr, "		calls		'calls' => create calls table"
+	print >> sys.stderr, "		calls		'calls' => create calls and call_paths table"
+	print >> sys.stderr, "		callchains	'callchains' => create call_paths table"
 	raise Exception("Too few arguments")
 
 if (len(sys.argv) < 2):
@@ -246,9 +248,11 @@ if columns not in ("all", "branches"):
 
 branches = (columns == "branches")
 
-if (len(sys.argv) >= 4):
-	if (sys.argv[3] == "calls"):
+for i in range(3,len(sys.argv)):
+	if (sys.argv[i] == "calls"):
 		perf_db_export_calls = True
+	elif (sys.argv[i] == "callchains"):
+		perf_db_export_callchains = True
 	else:
 		usage()
 
@@ -359,14 +363,16 @@ else:
 		'transaction	bigint,'
 		'data_src	bigint,'
 		'branch_type	integer,'
-		'in_tx		boolean)')
+		'in_tx		boolean,'
+		'call_path_id	bigint)')
 
-if perf_db_export_calls:
+if perf_db_export_calls or perf_db_export_callchains:
 	do_query(query, 'CREATE TABLE call_paths ('
 		'id		bigint		NOT NULL,'
 		'parent_id	bigint,'
 		'symbol_id	bigint,'
 		'ip		bigint)')
+if perf_db_export_calls:
 	do_query(query, 'CREATE TABLE calls ('
 		'id		bigint		NOT NULL,'
 		'thread_id	bigint,'
@@ -428,7 +434,7 @@ do_query(query, 'CREATE VIEW comm_threads_view AS '
 		'(SELECT tid FROM threads WHERE id = thread_id) AS tid'
 	' FROM comm_threads')
 
-if perf_db_export_calls:
+if perf_db_export_calls or perf_db_export_callchains:
 	do_query(query, 'CREATE VIEW call_paths_view AS '
 		'SELECT '
 			'c.id,'
@@ -444,6 +450,7 @@ if perf_db_export_calls:
 			'(SELECT dso_id FROM symbols WHERE id = p.symbol_id) AS parent_dso_id,'
 			'(SELECT dso FROM symbols_view  WHERE id = p.symbol_id) AS parent_dso_short_name'
 		' FROM call_paths c INNER JOIN call_paths p ON p.id = c.parent_id')
+if perf_db_export_calls:
 	do_query(query, 'CREATE VIEW calls_view AS '
 		'SELECT '
 			'calls.id,'
@@ -541,8 +548,9 @@ dso_file		= open_output_file("dso_table.bin")
 symbol_file		= open_output_file("symbol_table.bin")
 branch_type_file	= open_output_file("branch_type_table.bin")
 sample_file		= open_output_file("sample_table.bin")
-if perf_db_export_calls:
+if perf_db_export_calls or perf_db_export_callchains:
 	call_path_file		= open_output_file("call_path_table.bin")
+if perf_db_export_calls:
 	call_file		= open_output_file("call_table.bin")
 
 def trace_begin():
@@ -554,8 +562,8 @@ def trace_begin():
 	comm_table(0, "unknown")
 	dso_table(0, 0, "unknown", "unknown", "")
 	symbol_table(0, 0, 0, 0, 0, "unknown")
-	sample_table(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
-	if perf_db_export_calls:
+	sample_table(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
+	if perf_db_export_calls or perf_db_export_callchains:
 		call_path_table(0, 0, 0, 0)
 
 unhandled_count = 0
@@ -571,8 +579,9 @@ def trace_end():
 	copy_output_file(symbol_file,		"symbols")
 	copy_output_file(branch_type_file,	"branch_types")
 	copy_output_file(sample_file,		"samples")
-	if perf_db_export_calls:
+	if perf_db_export_calls or perf_db_export_callchains:
 		copy_output_file(call_path_file,	"call_paths")
+	if perf_db_export_calls:
 		copy_output_file(call_file,		"calls")
 
 	print datetime.datetime.today(), "Removing intermediate files..."
@@ -585,8 +594,9 @@ def trace_end():
 	remove_output_file(symbol_file)
 	remove_output_file(branch_type_file)
 	remove_output_file(sample_file)
-	if perf_db_export_calls:
+	if perf_db_export_calls or perf_db_export_callchains:
 		remove_output_file(call_path_file)
+	if perf_db_export_calls:
 		remove_output_file(call_file)
 	os.rmdir(output_dir_name)
 	print datetime.datetime.today(), "Adding primary keys"
@@ -599,8 +609,9 @@ def trace_end():
 	do_query(query, 'ALTER TABLE symbols         ADD PRIMARY KEY (id)')
 	do_query(query, 'ALTER TABLE branch_types    ADD PRIMARY KEY (id)')
 	do_query(query, 'ALTER TABLE samples         ADD PRIMARY KEY (id)')
-	if perf_db_export_calls:
+	if perf_db_export_calls or perf_db_export_callchains:
 		do_query(query, 'ALTER TABLE call_paths      ADD PRIMARY KEY (id)')
+	if perf_db_export_calls:
 		do_query(query, 'ALTER TABLE calls           ADD PRIMARY KEY (id)')
 
 	print datetime.datetime.today(), "Adding foreign keys"
@@ -623,10 +634,11 @@ def trace_end():
 					'ADD CONSTRAINT symbolfk   FOREIGN KEY (symbol_id)    REFERENCES symbols    (id),'
 					'ADD CONSTRAINT todsofk    FOREIGN KEY (to_dso_id)    REFERENCES dsos       (id),'
 					'ADD CONSTRAINT tosymbolfk FOREIGN KEY (to_symbol_id) REFERENCES symbols    (id)')
-	if perf_db_export_calls:
+	if perf_db_export_calls or perf_db_export_callchains:
 		do_query(query, 'ALTER TABLE call_paths '
 					'ADD CONSTRAINT parentfk    FOREIGN KEY (parent_id)    REFERENCES call_paths (id),'
 					'ADD CONSTRAINT symbolfk    FOREIGN KEY (symbol_id)    REFERENCES symbols    (id)')
+	if perf_db_export_calls:
 		do_query(query, 'ALTER TABLE calls '
 					'ADD CONSTRAINT threadfk    FOREIGN KEY (thread_id)    REFERENCES threads    (id),'
 					'ADD CONSTRAINT commfk      FOREIGN KEY (comm_id)      REFERENCES comms      (id),'
@@ -694,11 +706,11 @@ def branch_type_table(branch_type, name, *x):
 	value = struct.pack(fmt, 2, 4, branch_type, n, name)
 	branch_type_file.write(value)
 
-def sample_table(sample_id, evsel_id, machine_id, thread_id, comm_id, dso_id, symbol_id, sym_offset, ip, time, cpu, to_dso_id, to_symbol_id, to_sym_offset, to_ip, period, weight, transaction, data_src, branch_type, in_tx, *x):
+def sample_table(sample_id, evsel_id, machine_id, thread_id, comm_id, dso_id, symbol_id, sym_offset, ip, time, cpu, to_dso_id, to_symbol_id, to_sym_offset, to_ip, period, weight, transaction, data_src, branch_type, in_tx, call_path_id, *x):
 	if branches:
-		value = struct.pack("!hiqiqiqiqiqiqiqiqiqiqiiiqiqiqiqiiiB", 17, 8, sample_id, 8, evsel_id, 8, machine_id, 8, thread_id, 8, comm_id, 8, dso_id, 8, symbol_id, 8, sym_offset, 8, ip, 8, time, 4, cpu, 8, to_dso_id, 8, to_symbol_id, 8, to_sym_offset, 8, to_ip, 4, branch_type, 1, in_tx)
+		value = struct.pack("!hiqiqiqiqiqiqiqiqiqiqiiiqiqiqiqiiiBiq", 18, 8, sample_id, 8, evsel_id, 8, machine_id, 8, thread_id, 8, comm_id, 8, dso_id, 8, symbol_id, 8, sym_offset, 8, ip, 8, time, 4, cpu, 8, to_dso_id, 8, to_symbol_id, 8, to_sym_offset, 8, to_ip, 4, branch_type, 1, in_tx, 8, call_path_id)
 	else:
-		value = struct.pack("!hiqiqiqiqiqiqiqiqiqiqiiiqiqiqiqiqiqiqiqiiiB", 21, 8, sample_id, 8, evsel_id, 8, machine_id, 8, thread_id, 8, comm_id, 8, dso_id, 8, symbol_id, 8, sym_offset, 8, ip, 8, time, 4, cpu, 8, to_dso_id, 8, to_symbol_id, 8, to_sym_offset, 8, to_ip, 8, period, 8, weight, 8, transaction, 8, data_src, 4, branch_type, 1, in_tx)
+		value = struct.pack("!hiqiqiqiqiqiqiqiqiqiqiiiqiqiqiqiqiqiqiqiiiBiq", 22, 8, sample_id, 8, evsel_id, 8, machine_id, 8, thread_id, 8, comm_id, 8, dso_id, 8, symbol_id, 8, sym_offset, 8, ip, 8, time, 4, cpu, 8, to_dso_id, 8, to_symbol_id, 8, to_sym_offset, 8, to_ip, 8, period, 8, weight, 8, transaction, 8, data_src, 4, branch_type, 1, in_tx, 8, call_path_id)
 	sample_file.write(value)
 
 def call_path_table(cp_id, parent_id, symbol_id, ip, *x):
diff --git a/tools/perf/scripts/python/netdev-times.py b/tools/perf/scripts/python/netdev-times.py
index 4d21ef2d601d..4c6f09ac7d12 100644
--- a/tools/perf/scripts/python/netdev-times.py
+++ b/tools/perf/scripts/python/netdev-times.py
@@ -252,9 +252,10 @@ def irq__irq_handler_exit(name, context, cpu, sec, nsec, pid, comm, callchain, i
 	event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm, irq, ret)
 	all_event_list.append(event_info)
 
-def napi__napi_poll(name, context, cpu, sec, nsec, pid, comm, callchain, napi, dev_name):
+def napi__napi_poll(name, context, cpu, sec, nsec, pid, comm, callchain, napi,
+                    dev_name, work=None, budget=None):
 	event_info = (name, context, cpu, nsecs(sec, nsec), pid, comm,
-			napi, dev_name)
+			napi, dev_name, work, budget)
 	all_event_list.append(event_info)
 
 def net__netif_receive_skb(name, context, cpu, sec, nsec, pid, comm, callchain, skbaddr,
@@ -354,11 +355,13 @@ def handle_irq_softirq_exit(event_info):
 	receive_hunk_list.append(rec_data)
 
 def handle_napi_poll(event_info):
-	(name, context, cpu, time, pid, comm, napi, dev_name) = event_info
+	(name, context, cpu, time, pid, comm, napi, dev_name,
+		work, budget) = event_info
 	if cpu in net_rx_dic.keys():
 		event_list = net_rx_dic[cpu]['event_list']
 		rec_data = {'event_name':'napi_poll',
-				'dev':dev_name, 'event_t':time}
+				'dev':dev_name, 'event_t':time,
+				'work':work, 'budget':budget}
 		event_list.append(rec_data)
 
 def handle_netif_rx(event_info):
diff --git a/tools/perf/scripts/python/stackcollapse.py b/tools/perf/scripts/python/stackcollapse.py
new file mode 100755
index 000000000000..5a605f70ef32
--- /dev/null
+++ b/tools/perf/scripts/python/stackcollapse.py
@@ -0,0 +1,125 @@
+# stackcollapse.py - format perf samples with one line per distinct call stack
+#
+# This script's output has two space-separated fields.  The first is a semicolon
+# separated stack including the program name (from the "comm" field) and the
+# function names from the call stack.  The second is a count:
+#
+#  swapper;start_kernel;rest_init;cpu_idle;default_idle;native_safe_halt 2
+#
+# The file is sorted according to the first field.
+#
+# Input may be created and processed using:
+#
+#  perf record -a -g -F 99 sleep 60
+#  perf script report stackcollapse > out.stacks-folded
+#
+# (perf script record stackcollapse works too).
+#
+# Written by Paolo Bonzini <pbonzini@redhat.com>
+# Based on Brendan Gregg's stackcollapse-perf.pl script.
+
+import os
+import sys
+from collections import defaultdict
+from optparse import OptionParser, make_option
+
+sys.path.append(os.environ['PERF_EXEC_PATH'] + \
+                '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
+
+from perf_trace_context import *
+from Core import *
+from EventClass import *
+
+# command line parsing
+
+option_list = [
+    # formatting options for the bottom entry of the stack
+    make_option("--include-tid", dest="include_tid",
+                 action="store_true", default=False,
+                 help="include thread id in stack"),
+    make_option("--include-pid", dest="include_pid",
+                 action="store_true", default=False,
+                 help="include process id in stack"),
+    make_option("--no-comm", dest="include_comm",
+                 action="store_false", default=True,
+                 help="do not separate stacks according to comm"),
+    make_option("--tidy-java", dest="tidy_java",
+                 action="store_true", default=False,
+                 help="beautify Java signatures"),
+    make_option("--kernel", dest="annotate_kernel",
+                 action="store_true", default=False,
+                 help="annotate kernel functions with _[k]")
+]
+
+parser = OptionParser(option_list=option_list)
+(opts, args) = parser.parse_args()
+
+if len(args) != 0:
+    parser.error("unexpected command line argument")
+if opts.include_tid and not opts.include_comm:
+    parser.error("requesting tid but not comm is invalid")
+if opts.include_pid and not opts.include_comm:
+    parser.error("requesting pid but not comm is invalid")
+
+# event handlers
+
+lines = defaultdict(lambda: 0)
+
+def process_event(param_dict):
+    def tidy_function_name(sym, dso):
+        if sym is None:
+            sym = '[unknown]'
+
+        sym = sym.replace(';', ':')
+        if opts.tidy_java:
+            # the original stackcollapse-perf.pl script gives the
+            # example of converting this:
+            #    Lorg/mozilla/javascript/MemberBox;.<init>(Ljava/lang/reflect/Method;)V
+            # to this:
+            #    org/mozilla/javascript/MemberBox:.init
+            sym = sym.replace('<', '')
+            sym = sym.replace('>', '')
+            if sym[0] == 'L' and sym.find('/'):
+                sym = sym[1:]
+            try:
+                sym = sym[:sym.index('(')]
+            except ValueError:
+                pass
+
+        if opts.annotate_kernel and dso == '[kernel.kallsyms]':
+            return sym + '_[k]'
+        else:
+            return sym
+
+    stack = list()
+    if 'callchain' in param_dict:
+        for entry in param_dict['callchain']:
+            entry.setdefault('sym', dict())
+            entry['sym'].setdefault('name', None)
+            entry.setdefault('dso', None)
+            stack.append(tidy_function_name(entry['sym']['name'],
+                                            entry['dso']))
+    else:
+        param_dict.setdefault('symbol', None)
+        param_dict.setdefault('dso', None)
+        stack.append(tidy_function_name(param_dict['symbol'],
+                                        param_dict['dso']))
+
+    if opts.include_comm:
+        comm = param_dict["comm"].replace(' ', '_')
+        sep = "-"
+        if opts.include_pid:
+            comm = comm + sep + str(param_dict['sample']['pid'])
+            sep = "/"
+        if opts.include_tid:
+            comm = comm + sep + str(param_dict['sample']['tid'])
+        stack.append(comm)
+
+    stack_string = ';'.join(reversed(stack))
+    lines[stack_string] = lines[stack_string] + 1
+
+def trace_end():
+    list = lines.keys()
+    list.sort()
+    for stack in list:
+        print "%s %d" % (stack, lines[stack])