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authorAdrian Hunter <adrian.hunter@intel.com>2022-01-24 10:41:57 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2022-02-15 17:15:02 -0300
commit95f9bfcf84d808eb621088a376ba02bf77f5fec3 (patch)
treeac5cc3e8db89a9bc1a8e8bff4320941693ecda3c /tools/perf/scripts
parentperf script: Display new D (Intr Disabled) and t (Intr Toggle) flags (diff)
downloadlinux-dev-95f9bfcf84d808eb621088a376ba02bf77f5fec3.tar.xz
linux-dev-95f9bfcf84d808eb621088a376ba02bf77f5fec3.zip
perf scripts python: intel-pt-events.py: Add Event Trace
Add Event Trace to the intel-pt-events.py script. This shows how to unpack the raw data from the new sample events in a Python script. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: https://lore.kernel.org/r/20220124084201.2699795-22-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/scripts')
-rw-r--r--tools/perf/scripts/python/intel-pt-events.py55
1 files changed, 50 insertions, 5 deletions
diff --git a/tools/perf/scripts/python/intel-pt-events.py b/tools/perf/scripts/python/intel-pt-events.py
index 66452a8ec358..973bd12b7b40 100644
--- a/tools/perf/scripts/python/intel-pt-events.py
+++ b/tools/perf/scripts/python/intel-pt-events.py
@@ -76,16 +76,16 @@ def trace_begin():
glb_args = ap.parse_args()
if glb_args.insn_trace:
print("Intel PT Instruction Trace")
- itrace = "i0nsepwx"
+ itrace = "i0nsepwxI"
glb_insn = True
elif glb_args.src_trace:
print("Intel PT Source Trace")
- itrace = "i0nsepwx"
+ itrace = "i0nsepwxI"
glb_insn = True
glb_src = True
else:
- print("Intel PT Branch Trace, Power Events and PTWRITE")
- itrace = "bepwx"
+ print("Intel PT Branch Trace, Power Events, Event Trace and PTWRITE")
+ itrace = "bepwxI"
global glb_disassembler
try:
glb_disassembler = LibXED()
@@ -149,6 +149,43 @@ def print_psb(raw_buf):
offset = data[1]
print("offset: %#x" % (offset), end=' ')
+glb_cfe = ["", "INTR", "IRET", "SMI", "RSM", "SIPI", "INIT", "VMENTRY", "VMEXIT",
+ "VMEXIT_INTR", "SHUTDOWN", "", "UINT", "UIRET"] + [""] * 18
+glb_evd = ["", "PFA", "VMXQ", "VMXR"] + [""] * 60
+
+def print_evt(raw_buf):
+ data = struct.unpack_from("<BBH", raw_buf)
+ typ = data[0] & 0x1f
+ ip_flag = (data[0] & 0x80) >> 7
+ vector = data[1]
+ evd_cnt = data[2]
+ s = glb_cfe[typ]
+ if s:
+ print(" cfe: %s IP: %u vector: %u" % (s, ip_flag, vector), end=' ')
+ else:
+ print(" cfe: %u IP: %u vector: %u" % (typ, ip_flag, vector), end=' ')
+ pos = 4
+ for i in range(evd_cnt):
+ data = struct.unpack_from("<QQ", raw_buf)
+ et = data[0] & 0x3f
+ s = glb_evd[et]
+ if s:
+ print("%s: %#x" % (s, data[1]), end=' ')
+ else:
+ print("EVD_%u: %#x" % (et, data[1]), end=' ')
+
+def print_iflag(raw_buf):
+ data = struct.unpack_from("<IQ", raw_buf)
+ iflag = data[0] & 1
+ old_iflag = iflag ^ 1
+ via_branch = data[0] & 2
+ branch_ip = data[1]
+ if via_branch:
+ s = "via"
+ else:
+ s = "non"
+ print("IFLAG: %u->%u %s branch" % (old_iflag, iflag, s), end=' ')
+
def common_start_str(comm, sample):
ts = sample["time"]
cpu = sample["cpu"]
@@ -164,7 +201,7 @@ def print_common_start(comm, sample, name):
# weight = sample["weight"]
# transaction = sample["transaction"]
# cpumode = get_optional_zero(sample, "cpumode")
- print(common_start_str(comm, sample) + "%7s %19s" % (name, flags_disp), end=' ')
+ print(common_start_str(comm, sample) + "%8s %21s" % (name, flags_disp), end=' ')
def print_instructions_start(comm, sample):
if "x" in get_optional_null(sample, "flags"):
@@ -315,6 +352,14 @@ def do_process_event(param_dict):
print_common_start(comm, sample, name)
print_psb(raw_buf)
print_common_ip(param_dict, sample, symbol, dso)
+ elif name == "evt":
+ print_common_start(comm, sample, name)
+ print_evt(raw_buf)
+ print_common_ip(param_dict, sample, symbol, dso)
+ elif name == "iflag":
+ print_common_start(comm, sample, name)
+ print_iflag(raw_buf)
+ print_common_ip(param_dict, sample, symbol, dso)
else:
print_common_start(comm, sample, name)
print_common_ip(param_dict, sample, symbol, dso)