1 # intel-pt-events.py: Print Intel PT Power Events and PTWRITE
2 # Copyright (c) 2017, Intel Corporation.
4 # This program is free software; you can redistribute it and/or modify it
5 # under the terms and conditions of the GNU General Public License,
6 # version 2, as published by the Free Software Foundation.
8 # This program is distributed in the hope it will be useful, but WITHOUT
9 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 sys.path.append(os.environ['PERF_EXEC_PATH'] + \
18 '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
20 # These perf imports are not used at present
21 #from perf_trace_context import *
25 print "Intel PT Power Events and PTWRITE"
30 def trace_unhandled(event_name, context, event_fields_dict):
31 print ' '.join(['%s=%s'%(k,str(v))for k,v in sorted(event_fields_dict.items())])
33 def print_ptwrite(raw_buf):
34 data = struct.unpack_from("<IQ", raw_buf)
38 print "IP: %u payload: %#x" % (exact_ip, payload),
40 def print_cbr(raw_buf):
41 data = struct.unpack_from("<BBBBII", raw_buf)
43 f = (data[4] + 500) / 1000
44 p = ((cbr * 1000 / data[2]) + 5) / 10
45 print "%3u freq: %4u MHz (%3u%%)" % (cbr, f, p),
47 def print_mwait(raw_buf):
48 data = struct.unpack_from("<IQ", raw_buf)
50 hints = payload & 0xff
51 extensions = (payload >> 32) & 0x3
52 print "hints: %#x extensions: %#x" % (hints, extensions),
54 def print_pwre(raw_buf):
55 data = struct.unpack_from("<IQ", raw_buf)
57 hw = (payload >> 7) & 1
58 cstate = (payload >> 12) & 0xf
59 subcstate = (payload >> 8) & 0xf
60 print "hw: %u cstate: %u sub-cstate: %u" % (hw, cstate, subcstate),
62 def print_exstop(raw_buf):
63 data = struct.unpack_from("<I", raw_buf)
66 print "IP: %u" % (exact_ip),
68 def print_pwrx(raw_buf):
69 data = struct.unpack_from("<IQ", raw_buf)
71 deepest_cstate = payload & 0xf
72 last_cstate = (payload >> 4) & 0xf
73 wake_reason = (payload >> 8) & 0xf
74 print "deepest cstate: %u last cstate: %u wake reason: %#x" % (deepest_cstate, last_cstate, wake_reason),
76 def print_common_start(comm, sample, name):
81 print "%16s %5u/%-5u [%03u] %9u.%09u %7s:" % (comm, pid, tid, cpu, ts / 1000000000, ts %1000000000, name),
83 def print_common_ip(sample, symbol, dso):
85 print "%16x %s (%s)" % (ip, symbol, dso)
87 def process_event(param_dict):
88 event_attr = param_dict["attr"]
89 sample = param_dict["sample"]
90 raw_buf = param_dict["raw_buf"]
91 comm = param_dict["comm"]
92 name = param_dict["ev_name"]
94 # Symbol and dso info are not always resolved
95 if (param_dict.has_key("dso")):
96 dso = param_dict["dso"]
100 if (param_dict.has_key("symbol")):
101 symbol = param_dict["symbol"]
105 if name == "ptwrite":
106 print_common_start(comm, sample, name)
107 print_ptwrite(raw_buf)
108 print_common_ip(sample, symbol, dso)
110 print_common_start(comm, sample, name)
112 print_common_ip(sample, symbol, dso)
113 elif name == "mwait":
114 print_common_start(comm, sample, name)
116 print_common_ip(sample, symbol, dso)
118 print_common_start(comm, sample, name)
120 print_common_ip(sample, symbol, dso)
121 elif name == "exstop":
122 print_common_start(comm, sample, name)
123 print_exstop(raw_buf)
124 print_common_ip(sample, symbol, dso)
126 print_common_start(comm, sample, name)
128 print_common_ip(sample, symbol, dso)