1 #!/usr/bin/env python3 1 #!/usr/bin/env python3
2 # SPDX-License-Identifier: (LGPL-2.1 OR BSD-2- 2 # SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
3 """Convert directories of JSON events to C cod 3 """Convert directories of JSON events to C code."""
4 import argparse 4 import argparse
5 import csv 5 import csv
6 from functools import lru_cache <<
7 import json 6 import json
8 import metric <<
9 import os 7 import os
10 import sys 8 import sys
11 from typing import (Callable, Dict, Optional, 9 from typing import (Callable, Dict, Optional, Sequence, Set, Tuple)
12 import collections 10 import collections
13 11
14 # Global command line arguments. 12 # Global command line arguments.
15 _args = None 13 _args = None
16 # List of regular event tables. <<
17 _event_tables = [] <<
18 # List of event tables generated from "/sys" d 14 # List of event tables generated from "/sys" directories.
19 _sys_event_tables = [] 15 _sys_event_tables = []
20 # List of regular metric tables. <<
21 _metric_tables = [] <<
22 # List of metric tables generated from "/sys" <<
23 _sys_metric_tables = [] <<
24 # Mapping between sys event table names and sy <<
25 _sys_event_table_to_metric_table_mapping = {} <<
26 # Map from an event name to an architecture st 16 # Map from an event name to an architecture standard
27 # JsonEvent. Architecture standard events are 17 # JsonEvent. Architecture standard events are in json files in the top
28 # f'{_args.starting_dir}/{_args.arch}' directo 18 # f'{_args.starting_dir}/{_args.arch}' directory.
29 _arch_std_events = {} 19 _arch_std_events = {}
>> 20 # Track whether an events table is currently being defined and needs closing.
>> 21 _close_table = False
30 # Events to write out when the table is closed 22 # Events to write out when the table is closed
31 _pending_events = [] 23 _pending_events = []
32 # Name of events table to be written out <<
33 _pending_events_tblname = None <<
34 # Metrics to write out when the table is close <<
35 _pending_metrics = [] <<
36 # Name of metrics table to be written out <<
37 _pending_metrics_tblname = None <<
38 # Global BigCString shared by all structures. 24 # Global BigCString shared by all structures.
39 _bcs = None 25 _bcs = None
40 # Map from the name of a metric group to a des <<
41 _metricgroups = {} <<
42 # Order specific JsonEvent attributes will be 26 # Order specific JsonEvent attributes will be visited.
43 _json_event_attributes = [ 27 _json_event_attributes = [
44 # cmp_sevent related attributes. 28 # cmp_sevent related attributes.
45 'name', 'topic', 'desc', !! 29 'name', 'pmu', 'topic', 'desc', 'metric_name', 'metric_group',
46 # Seems useful, put it early. 30 # Seems useful, put it early.
47 'event', 31 'event',
48 # Short things in alphabetical order. 32 # Short things in alphabetical order.
49 'compat', 'deprecated', 'perpkg', 'unit', !! 33 'aggr_mode', 'compat', 'deprecated', 'perpkg', 'unit',
50 # Longer things (the last won't be iterate 34 # Longer things (the last won't be iterated over during decompress).
51 'long_desc' !! 35 'metric_constraint', 'metric_expr', 'long_desc'
52 ] 36 ]
53 37
54 # Attributes that are in pmu_metric rather tha <<
55 _json_metric_attributes = [ <<
56 'metric_name', 'metric_group', 'metric_exp <<
57 'desc', 'long_desc', 'unit', 'compat', 'me <<
58 'default_metricgroup_name', 'aggr_mode', ' <<
59 ] <<
60 # Attributes that are bools or enum int values <<
61 _json_enum_attributes = ['aggr_mode', 'depreca <<
62 38
63 def removesuffix(s: str, suffix: str) -> str: 39 def removesuffix(s: str, suffix: str) -> str:
64 """Remove the suffix from a string 40 """Remove the suffix from a string
65 41
66 The removesuffix function is added to str in 42 The removesuffix function is added to str in Python 3.9. We aim for 3.6
67 compatibility and so provide our own functio 43 compatibility and so provide our own function here.
68 """ 44 """
69 return s[0:-len(suffix)] if s.endswith(suffi 45 return s[0:-len(suffix)] if s.endswith(suffix) else s
70 46
71 47
72 def file_name_to_table_name(prefix: str, paren !! 48 def file_name_to_table_name(parents: Sequence[str], dirname: str) -> str:
73 dirname: str) -> s <<
74 """Generate a C table name from directory na 49 """Generate a C table name from directory names."""
75 tblname = prefix !! 50 tblname = 'pme'
76 for p in parents: 51 for p in parents:
77 tblname += '_' + p 52 tblname += '_' + p
78 tblname += '_' + dirname 53 tblname += '_' + dirname
79 return tblname.replace('-', '_') 54 return tblname.replace('-', '_')
80 55
81 <<
82 def c_len(s: str) -> int: 56 def c_len(s: str) -> int:
83 """Return the length of s a C string 57 """Return the length of s a C string
84 58
85 This doesn't handle all escape characters pr 59 This doesn't handle all escape characters properly. It first assumes
86 all \\ are for escaping, it then adjusts as !! 60 all \ are for escaping, it then adjusts as it will have over counted
87 \\. The code uses \000 rather than \0 as a t 61 \\. The code uses \000 rather than \0 as a terminator as an adjacent
88 number would be folded into a string of \0 ( 62 number would be folded into a string of \0 (ie. "\0" + "5" doesn't
89 equal a terminator followed by the number 5 63 equal a terminator followed by the number 5 but the escape of
90 \05). The code adjusts for \000 but not prop 64 \05). The code adjusts for \000 but not properly for all octal, hex
91 or unicode values. 65 or unicode values.
92 """ 66 """
93 try: 67 try:
94 utf = s.encode(encoding='utf-8',errors='st 68 utf = s.encode(encoding='utf-8',errors='strict')
95 except: 69 except:
96 print(f'broken string {s}') 70 print(f'broken string {s}')
97 raise 71 raise
98 return len(utf) - utf.count(b'\\') + utf.cou 72 return len(utf) - utf.count(b'\\') + utf.count(b'\\\\') - (utf.count(b'\\000') * 2)
99 73
100 class BigCString: 74 class BigCString:
101 """A class to hold many strings concatenated 75 """A class to hold many strings concatenated together.
102 76
103 Generating a large number of stand-alone C s 77 Generating a large number of stand-alone C strings creates a large
104 number of relocations in position independen 78 number of relocations in position independent code. The BigCString
105 is a helper for this case. It builds a singl 79 is a helper for this case. It builds a single string which within it
106 are all the other C strings (to avoid memory 80 are all the other C strings (to avoid memory issues the string
107 itself is held as a list of strings). The of 81 itself is held as a list of strings). The offsets within the big
108 string are recorded and when stored to disk 82 string are recorded and when stored to disk these don't need
109 relocation. To reduce the size of the string 83 relocation. To reduce the size of the string further, identical
110 strings are merged. If a longer string ends- 84 strings are merged. If a longer string ends-with the same value as a
111 shorter string, these entries are also merge 85 shorter string, these entries are also merged.
112 """ 86 """
113 strings: Set[str] 87 strings: Set[str]
114 big_string: Sequence[str] 88 big_string: Sequence[str]
115 offsets: Dict[str, int] 89 offsets: Dict[str, int]
116 insert_number: int <<
117 insert_point: Dict[str, int] <<
118 metrics: Set[str] <<
119 90
120 def __init__(self): 91 def __init__(self):
121 self.strings = set() 92 self.strings = set()
122 self.insert_number = 0; <<
123 self.insert_point = {} <<
124 self.metrics = set() <<
125 93
126 def add(self, s: str, metric: bool) -> None: !! 94 def add(self, s: str) -> None:
127 """Called to add to the big string.""" 95 """Called to add to the big string."""
128 if s not in self.strings: !! 96 self.strings.add(s)
129 self.strings.add(s) <<
130 self.insert_point[s] = self.insert_numbe <<
131 self.insert_number += 1 <<
132 if metric: <<
133 self.metrics.add(s) <<
134 97
135 def compute(self) -> None: 98 def compute(self) -> None:
136 """Called once all strings are added to co 99 """Called once all strings are added to compute the string and offsets."""
137 100
138 folded_strings = {} 101 folded_strings = {}
139 # Determine if two strings can be folded, 102 # Determine if two strings can be folded, ie. let 1 string use the
140 # end of another. First reverse all string 103 # end of another. First reverse all strings and sort them.
141 sorted_reversed_strings = sorted([x[::-1] 104 sorted_reversed_strings = sorted([x[::-1] for x in self.strings])
142 105
143 # Strings 'xyz' and 'yz' will now be [ 'zy 106 # Strings 'xyz' and 'yz' will now be [ 'zy', 'zyx' ]. Scan forward
144 # for each string to see if there is a bet 107 # for each string to see if there is a better candidate to fold it
145 # into, in the example rather than using ' 108 # into, in the example rather than using 'yz' we can use'xyz' at
146 # an offset of 1. We record which string c 109 # an offset of 1. We record which string can be folded into which
147 # in folded_strings, we don't need to reco 110 # in folded_strings, we don't need to record the offset as it is
148 # trivially computed from the string lengt 111 # trivially computed from the string lengths.
149 for pos,s in enumerate(sorted_reversed_str 112 for pos,s in enumerate(sorted_reversed_strings):
150 best_pos = pos 113 best_pos = pos
151 for check_pos in range(pos + 1, len(sort 114 for check_pos in range(pos + 1, len(sorted_reversed_strings)):
152 if sorted_reversed_strings[check_pos]. 115 if sorted_reversed_strings[check_pos].startswith(s):
153 best_pos = check_pos 116 best_pos = check_pos
154 else: 117 else:
155 break 118 break
156 if pos != best_pos: 119 if pos != best_pos:
157 folded_strings[s[::-1]] = sorted_rever 120 folded_strings[s[::-1]] = sorted_reversed_strings[best_pos][::-1]
158 121
159 # Compute reverse mappings for debugging. 122 # Compute reverse mappings for debugging.
160 fold_into_strings = collections.defaultdic 123 fold_into_strings = collections.defaultdict(set)
161 for key, val in folded_strings.items(): 124 for key, val in folded_strings.items():
162 if key != val: 125 if key != val:
163 fold_into_strings[val].add(key) 126 fold_into_strings[val].add(key)
164 127
165 # big_string_offset is the current locatio 128 # big_string_offset is the current location within the C string
166 # being appended to - comments, etc. don't 129 # being appended to - comments, etc. don't count. big_string is
167 # the string contents represented as a lis 130 # the string contents represented as a list. Strings are immutable
168 # in Python and so appending to one causes 131 # in Python and so appending to one causes memory issues, while
169 # lists are mutable. 132 # lists are mutable.
170 big_string_offset = 0 133 big_string_offset = 0
171 self.big_string = [] 134 self.big_string = []
172 self.offsets = {} 135 self.offsets = {}
173 136
174 def string_cmp_key(s: str) -> Tuple[bool, <<
175 return (s in self.metrics, self.insert_p <<
176 <<
177 # Emit all strings that aren't folded in a 137 # Emit all strings that aren't folded in a sorted manner.
178 for s in sorted(self.strings, key=string_c !! 138 for s in sorted(self.strings):
179 if s not in folded_strings: 139 if s not in folded_strings:
180 self.offsets[s] = big_string_offset 140 self.offsets[s] = big_string_offset
181 self.big_string.append(f'/* offset={bi 141 self.big_string.append(f'/* offset={big_string_offset} */ "')
182 self.big_string.append(s) 142 self.big_string.append(s)
183 self.big_string.append('"') 143 self.big_string.append('"')
184 if s in fold_into_strings: 144 if s in fold_into_strings:
185 self.big_string.append(' /* also: ' 145 self.big_string.append(' /* also: ' + ', '.join(fold_into_strings[s]) + ' */')
186 self.big_string.append('\n') 146 self.big_string.append('\n')
187 big_string_offset += c_len(s) 147 big_string_offset += c_len(s)
188 continue 148 continue
189 149
190 # Compute the offsets of the folded string 150 # Compute the offsets of the folded strings.
191 for s in folded_strings.keys(): 151 for s in folded_strings.keys():
192 assert s not in self.offsets 152 assert s not in self.offsets
193 folded_s = folded_strings[s] 153 folded_s = folded_strings[s]
194 self.offsets[s] = self.offsets[folded_s] 154 self.offsets[s] = self.offsets[folded_s] + c_len(folded_s) - c_len(s)
195 155
196 _bcs = BigCString() 156 _bcs = BigCString()
197 157
198 class JsonEvent: 158 class JsonEvent:
199 """Representation of an event loaded from a 159 """Representation of an event loaded from a json file dictionary."""
200 160
201 def __init__(self, jd: dict): 161 def __init__(self, jd: dict):
202 """Constructor passed the dictionary of pa 162 """Constructor passed the dictionary of parsed json values."""
203 163
204 def llx(x: int) -> str: 164 def llx(x: int) -> str:
205 """Convert an int to a string similar to 165 """Convert an int to a string similar to a printf modifier of %#llx."""
206 return str(x) if x >= 0 and x < 10 else !! 166 return '0' if x == 0 else hex(x)
207 167
208 def fixdesc(s: str) -> str: 168 def fixdesc(s: str) -> str:
209 """Fix formatting issue for the desc str 169 """Fix formatting issue for the desc string."""
210 if s is None: 170 if s is None:
211 return None 171 return None
212 return removesuffix(removesuffix(removes 172 return removesuffix(removesuffix(removesuffix(s, '. '),
213 '. '), 173 '. '), '.').replace('\n', '\\n').replace(
214 '\" 174 '\"', '\\"').replace('\r', '\\r')
215 175
216 def convert_aggr_mode(aggr_mode: str) -> O 176 def convert_aggr_mode(aggr_mode: str) -> Optional[str]:
217 """Returns the aggr_mode_class enum valu 177 """Returns the aggr_mode_class enum value associated with the JSON string."""
218 if not aggr_mode: 178 if not aggr_mode:
219 return None 179 return None
220 aggr_mode_to_enum = { 180 aggr_mode_to_enum = {
221 'PerChip': '1', 181 'PerChip': '1',
222 'PerCore': '2', 182 'PerCore': '2',
223 } 183 }
224 return aggr_mode_to_enum[aggr_mode] 184 return aggr_mode_to_enum[aggr_mode]
225 185
226 def convert_metric_constraint(metric_const <<
227 """Returns the metric_event_groups enum <<
228 if not metric_constraint: <<
229 return None <<
230 metric_constraint_to_enum = { <<
231 'NO_GROUP_EVENTS': '1', <<
232 'NO_GROUP_EVENTS_NMI': '2', <<
233 'NO_NMI_WATCHDOG': '2', <<
234 'NO_GROUP_EVENTS_SMT': '3', <<
235 } <<
236 return metric_constraint_to_enum[metric_ <<
237 <<
238 def lookup_msr(num: str) -> Optional[str]: 186 def lookup_msr(num: str) -> Optional[str]:
239 """Converts the msr number, or first in 187 """Converts the msr number, or first in a list to the appropriate event field."""
240 if not num: 188 if not num:
241 return None 189 return None
242 msrmap = { 190 msrmap = {
243 0x3F6: 'ldlat=', 191 0x3F6: 'ldlat=',
244 0x1A6: 'offcore_rsp=', 192 0x1A6: 'offcore_rsp=',
245 0x1A7: 'offcore_rsp=', 193 0x1A7: 'offcore_rsp=',
246 0x3F7: 'frontend=', 194 0x3F7: 'frontend=',
247 } 195 }
248 return msrmap[int(num.split(',', 1)[0], 196 return msrmap[int(num.split(',', 1)[0], 0)]
249 197
250 def real_event(name: str, event: str) -> O 198 def real_event(name: str, event: str) -> Optional[str]:
251 """Convert well known event names to an 199 """Convert well known event names to an event string otherwise use the event argument."""
252 fixed = { 200 fixed = {
253 'inst_retired.any': 'event=0xc0,peri 201 'inst_retired.any': 'event=0xc0,period=2000003',
254 'inst_retired.any_p': 'event=0xc0,pe 202 'inst_retired.any_p': 'event=0xc0,period=2000003',
255 'cpu_clk_unhalted.ref': 'event=0x0,u 203 'cpu_clk_unhalted.ref': 'event=0x0,umask=0x03,period=2000003',
256 'cpu_clk_unhalted.thread': 'event=0x 204 'cpu_clk_unhalted.thread': 'event=0x3c,period=2000003',
257 'cpu_clk_unhalted.core': 'event=0x3c 205 'cpu_clk_unhalted.core': 'event=0x3c,period=2000003',
258 'cpu_clk_unhalted.thread_any': 'even 206 'cpu_clk_unhalted.thread_any': 'event=0x3c,any=1,period=2000003',
259 } 207 }
260 if not name: 208 if not name:
261 return None 209 return None
262 if name.lower() in fixed: 210 if name.lower() in fixed:
263 return fixed[name.lower()] 211 return fixed[name.lower()]
264 return event 212 return event
265 213
266 def unit_to_pmu(unit: str) -> Optional[str 214 def unit_to_pmu(unit: str) -> Optional[str]:
267 """Convert a JSON Unit to Linux PMU name 215 """Convert a JSON Unit to Linux PMU name."""
268 if not unit: 216 if not unit:
269 return 'default_core' !! 217 return None
270 # Comment brought over from jevents.c: 218 # Comment brought over from jevents.c:
271 # it's not realistic to keep adding thes 219 # it's not realistic to keep adding these, we need something more scalable ...
272 table = { 220 table = {
273 'CBO': 'uncore_cbox', 221 'CBO': 'uncore_cbox',
274 'QPI LL': 'uncore_qpi', 222 'QPI LL': 'uncore_qpi',
275 'SBO': 'uncore_sbox', 223 'SBO': 'uncore_sbox',
276 'iMPH-U': 'uncore_arb', 224 'iMPH-U': 'uncore_arb',
277 'CPU-M-CF': 'cpum_cf', 225 'CPU-M-CF': 'cpum_cf',
278 'CPU-M-SF': 'cpum_sf', 226 'CPU-M-SF': 'cpum_sf',
279 'PAI-CRYPTO' : 'pai_crypto', 227 'PAI-CRYPTO' : 'pai_crypto',
280 'PAI-EXT' : 'pai_ext', <<
281 'UPI LL': 'uncore_upi', 228 'UPI LL': 'uncore_upi',
282 'hisi_sicl,cpa': 'hisi_sicl,cpa', 229 'hisi_sicl,cpa': 'hisi_sicl,cpa',
283 'hisi_sccl,ddrc': 'hisi_sccl,ddrc', 230 'hisi_sccl,ddrc': 'hisi_sccl,ddrc',
284 'hisi_sccl,hha': 'hisi_sccl,hha', 231 'hisi_sccl,hha': 'hisi_sccl,hha',
285 'hisi_sccl,l3c': 'hisi_sccl,l3c', 232 'hisi_sccl,l3c': 'hisi_sccl,l3c',
286 'imx8_ddr': 'imx8_ddr', 233 'imx8_ddr': 'imx8_ddr',
287 'imx9_ddr': 'imx9_ddr', <<
288 'L3PMC': 'amd_l3', 234 'L3PMC': 'amd_l3',
289 'DFPMC': 'amd_df', 235 'DFPMC': 'amd_df',
290 'UMCPMC': 'amd_umc', <<
291 'cpu_core': 'cpu_core', 236 'cpu_core': 'cpu_core',
292 'cpu_atom': 'cpu_atom', 237 'cpu_atom': 'cpu_atom',
293 'ali_drw': 'ali_drw', <<
294 'arm_cmn': 'arm_cmn', <<
295 } 238 }
296 return table[unit] if unit in table else 239 return table[unit] if unit in table else f'uncore_{unit.lower()}'
297 240
298 def is_zero(val: str) -> bool: <<
299 try: <<
300 if val.startswith('0x'): <<
301 return int(val, 16) == 0 <<
302 else: <<
303 return int(val) == 0 <<
304 except e: <<
305 return False <<
306 <<
307 def canonicalize_value(val: str) -> str: <<
308 try: <<
309 if val.startswith('0x'): <<
310 return llx(int(val, 16)) <<
311 return str(int(val)) <<
312 except e: <<
313 return val <<
314 <<
315 eventcode = 0 241 eventcode = 0
316 if 'EventCode' in jd: 242 if 'EventCode' in jd:
317 eventcode = int(jd['EventCode'].split(', 243 eventcode = int(jd['EventCode'].split(',', 1)[0], 0)
318 if 'ExtSel' in jd: 244 if 'ExtSel' in jd:
319 eventcode |= int(jd['ExtSel']) << 8 245 eventcode |= int(jd['ExtSel']) << 8
320 configcode = int(jd['ConfigCode'], 0) if ' 246 configcode = int(jd['ConfigCode'], 0) if 'ConfigCode' in jd else None
321 eventidcode = int(jd['EventidCode'], 0) if <<
322 self.name = jd['EventName'].lower() if 'Ev 247 self.name = jd['EventName'].lower() if 'EventName' in jd else None
323 self.topic = '' 248 self.topic = ''
324 self.compat = jd.get('Compat') 249 self.compat = jd.get('Compat')
325 self.desc = fixdesc(jd.get('BriefDescripti 250 self.desc = fixdesc(jd.get('BriefDescription'))
326 self.long_desc = fixdesc(jd.get('PublicDes 251 self.long_desc = fixdesc(jd.get('PublicDescription'))
327 precise = jd.get('PEBS') 252 precise = jd.get('PEBS')
328 msr = lookup_msr(jd.get('MSRIndex')) 253 msr = lookup_msr(jd.get('MSRIndex'))
329 msrval = jd.get('MSRValue') 254 msrval = jd.get('MSRValue')
330 extra_desc = '' 255 extra_desc = ''
331 if 'Data_LA' in jd: 256 if 'Data_LA' in jd:
332 extra_desc += ' Supports address when p 257 extra_desc += ' Supports address when precise'
333 if 'Errata' in jd: 258 if 'Errata' in jd:
334 extra_desc += '.' 259 extra_desc += '.'
335 if 'Errata' in jd: 260 if 'Errata' in jd:
336 extra_desc += ' Spec update: ' + jd['Er 261 extra_desc += ' Spec update: ' + jd['Errata']
337 self.pmu = unit_to_pmu(jd.get('Unit')) 262 self.pmu = unit_to_pmu(jd.get('Unit'))
338 filter = jd.get('Filter') 263 filter = jd.get('Filter')
339 self.unit = jd.get('ScaleUnit') 264 self.unit = jd.get('ScaleUnit')
340 self.perpkg = jd.get('PerPkg') 265 self.perpkg = jd.get('PerPkg')
341 self.aggr_mode = convert_aggr_mode(jd.get( 266 self.aggr_mode = convert_aggr_mode(jd.get('AggregationMode'))
342 self.deprecated = jd.get('Deprecated') 267 self.deprecated = jd.get('Deprecated')
343 self.metric_name = jd.get('MetricName') 268 self.metric_name = jd.get('MetricName')
344 self.metric_group = jd.get('MetricGroup') 269 self.metric_group = jd.get('MetricGroup')
345 self.metricgroup_no_group = jd.get('Metric !! 270 self.metric_constraint = jd.get('MetricConstraint')
346 self.default_metricgroup_name = jd.get('De !! 271 self.metric_expr = jd.get('MetricExpr')
347 self.event_grouping = convert_metric_const !! 272 if self.metric_expr:
348 self.metric_expr = None !! 273 self.metric_expr = self.metric_expr.replace('\\', '\\\\')
349 if 'MetricExpr' in jd: <<
350 self.metric_expr = metric.ParsePerfJson( <<
351 # Note, the metric formula for the thresho <<
352 # and > have incorrect precedence. <<
353 self.metric_threshold = jd.get('MetricThre <<
354 <<
355 arch_std = jd.get('ArchStdEvent') 274 arch_std = jd.get('ArchStdEvent')
356 if precise and self.desc and '(Precise Eve 275 if precise and self.desc and '(Precise Event)' not in self.desc:
357 extra_desc += ' (Must be precise)' if pr 276 extra_desc += ' (Must be precise)' if precise == '2' else (' (Precise '
358 277 'event)')
359 event = None !! 278 event = f'config={llx(configcode)}' if configcode is not None else f'event={llx(eventcode)}'
360 if configcode is not None: <<
361 event = f'config={llx(configcode)}' <<
362 elif eventidcode is not None: <<
363 event = f'eventid={llx(eventidcode)}' <<
364 else: <<
365 event = f'event={llx(eventcode)}' <<
366 event_fields = [ 279 event_fields = [
367 ('AnyThread', 'any='), 280 ('AnyThread', 'any='),
368 ('PortMask', 'ch_mask='), 281 ('PortMask', 'ch_mask='),
369 ('CounterMask', 'cmask='), 282 ('CounterMask', 'cmask='),
370 ('EdgeDetect', 'edge='), 283 ('EdgeDetect', 'edge='),
371 ('FCMask', 'fc_mask='), 284 ('FCMask', 'fc_mask='),
372 ('Invert', 'inv='), 285 ('Invert', 'inv='),
373 ('SampleAfterValue', 'period='), 286 ('SampleAfterValue', 'period='),
374 ('UMask', 'umask='), 287 ('UMask', 'umask='),
375 ('NodeType', 'type='), <<
376 ('RdWrMask', 'rdwrmask='), <<
377 ('EnAllCores', 'enallcores='), <<
378 ('EnAllSlices', 'enallslices='), <<
379 ('SliceId', 'sliceid='), <<
380 ('ThreadMask', 'threadmask='), <<
381 ] 288 ]
382 for key, value in event_fields: 289 for key, value in event_fields:
383 if key in jd and not is_zero(jd[key]): !! 290 if key in jd and jd[key] != '0':
384 event += f',{value}{canonicalize_value !! 291 event += ',' + value + jd[key]
385 if filter: 292 if filter:
386 event += f',{filter}' 293 event += f',{filter}'
387 if msr: 294 if msr:
388 event += f',{msr}{msrval}' 295 event += f',{msr}{msrval}'
389 if self.desc and extra_desc: 296 if self.desc and extra_desc:
390 self.desc += extra_desc 297 self.desc += extra_desc
391 if self.long_desc and extra_desc: 298 if self.long_desc and extra_desc:
392 self.long_desc += extra_desc 299 self.long_desc += extra_desc
393 if arch_std: !! 300 if self.pmu:
394 if arch_std.lower() in _arch_std_events: !! 301 if self.desc and not self.desc.endswith('. '):
395 event = _arch_std_events[arch_std.lowe !! 302 self.desc += '. '
396 # Copy from the architecture standard !! 303 self.desc = (self.desc if self.desc else '') + ('Unit: ' + self.pmu + ' ')
397 for attr, value in _arch_std_events[ar !! 304 if arch_std and arch_std.lower() in _arch_std_events:
398 if hasattr(self, attr) and not getat !! 305 event = _arch_std_events[arch_std.lower()].event
399 setattr(self, attr, value) !! 306 # Copy from the architecture standard event to self for undefined fields.
400 else: !! 307 for attr, value in _arch_std_events[arch_std.lower()].__dict__.items():
401 raise argparse.ArgumentTypeError('Cann !! 308 if hasattr(self, attr) and not getattr(self, attr):
>> 309 setattr(self, attr, value)
402 310
403 self.event = real_event(self.name, event) 311 self.event = real_event(self.name, event)
404 312
405 def __repr__(self) -> str: 313 def __repr__(self) -> str:
406 """String representation primarily for deb 314 """String representation primarily for debugging."""
407 s = '{\n' 315 s = '{\n'
408 for attr, value in self.__dict__.items(): 316 for attr, value in self.__dict__.items():
409 if value: 317 if value:
410 s += f'\t{attr} = {value},\n' 318 s += f'\t{attr} = {value},\n'
411 return s + '}' 319 return s + '}'
412 320
413 def build_c_string(self, metric: bool) -> st !! 321 def build_c_string(self) -> str:
414 s = '' 322 s = ''
415 for attr in _json_metric_attributes if met !! 323 for attr in _json_event_attributes:
416 x = getattr(self, attr) 324 x = getattr(self, attr)
417 if metric and x and attr == 'metric_expr !! 325 s += f'{x}\\000' if x else '\\000'
418 # Convert parsed metric expressions in <<
419 # must be doubled in the file. <<
420 x = x.ToPerfJson().replace('\\', '\\\\ <<
421 if metric and x and attr == 'metric_thre <<
422 x = x.replace('\\', '\\\\') <<
423 if attr in _json_enum_attributes: <<
424 s += x if x else '0' <<
425 else: <<
426 s += f'{x}\\000' if x else '\\000' <<
427 return s 326 return s
428 327
429 def to_c_string(self, metric: bool) -> str: !! 328 def to_c_string(self) -> str:
430 """Representation of the event as a C stru 329 """Representation of the event as a C struct initializer."""
431 330
432 s = self.build_c_string(metric) !! 331 s = self.build_c_string()
433 return f'{{ { _bcs.offsets[s] } }}, /* {s} 332 return f'{{ { _bcs.offsets[s] } }}, /* {s} */\n'
434 333
435 334
436 @lru_cache(maxsize=None) <<
437 def read_json_events(path: str, topic: str) -> 335 def read_json_events(path: str, topic: str) -> Sequence[JsonEvent]:
438 """Read json events from the specified file. 336 """Read json events from the specified file."""
>> 337
439 try: 338 try:
440 events = json.load(open(path), object_hook !! 339 result = json.load(open(path), object_hook=JsonEvent)
441 except BaseException as err: 340 except BaseException as err:
442 print(f"Exception processing {path}") 341 print(f"Exception processing {path}")
443 raise 342 raise
444 metrics: list[Tuple[str, str, metric.Express !! 343 for event in result:
445 for event in events: <<
446 event.topic = topic 344 event.topic = topic
447 if event.metric_name and '-' not in event. !! 345 return result
448 metrics.append((event.pmu, event.metric_ <<
449 updates = metric.RewriteMetricsInTermsOfOthe <<
450 if updates: <<
451 for event in events: <<
452 if event.metric_name in updates: <<
453 # print(f'Updated {event.metric_name} <<
454 # f'to\n"{updates[event.metric_n <<
455 event.metric_expr = updates[event.metr <<
456 <<
457 return events <<
458 346
459 def preprocess_arch_std_files(archpath: str) - 347 def preprocess_arch_std_files(archpath: str) -> None:
460 """Read in all architecture standard events. 348 """Read in all architecture standard events."""
461 global _arch_std_events 349 global _arch_std_events
462 for item in os.scandir(archpath): 350 for item in os.scandir(archpath):
463 if item.is_file() and item.name.endswith(' 351 if item.is_file() and item.name.endswith('.json'):
464 for event in read_json_events(item.path, 352 for event in read_json_events(item.path, topic=''):
465 if event.name: 353 if event.name:
466 _arch_std_events[event.name.lower()] 354 _arch_std_events[event.name.lower()] = event
467 if event.metric_name: !! 355
468 _arch_std_events[event.metric_name.l !! 356
>> 357 def print_events_table_prefix(tblname: str) -> None:
>> 358 """Called when a new events table is started."""
>> 359 global _close_table
>> 360 if _close_table:
>> 361 raise IOError('Printing table prefix but last table has no suffix')
>> 362 _args.output_file.write(f'static const struct compact_pmu_event {tblname}[] = {{\n')
>> 363 _close_table = True
469 364
470 365
471 def add_events_table_entries(item: os.DirEntry 366 def add_events_table_entries(item: os.DirEntry, topic: str) -> None:
472 """Add contents of file to _pending_events t 367 """Add contents of file to _pending_events table."""
>> 368 if not _close_table:
>> 369 raise IOError('Table entries missing prefix')
473 for e in read_json_events(item.path, topic): 370 for e in read_json_events(item.path, topic):
474 if e.name: !! 371 _pending_events.append(e)
475 _pending_events.append(e) <<
476 if e.metric_name: <<
477 _pending_metrics.append(e) <<
478 372
479 373
480 def print_pending_events() -> None: !! 374 def print_events_table_suffix() -> None:
481 """Optionally close events table.""" 375 """Optionally close events table."""
482 376
483 def event_cmp_key(j: JsonEvent) -> Tuple[str !! 377 def event_cmp_key(j: JsonEvent) -> Tuple[bool, str, str, str, str]:
484 def fix_none(s: Optional[str]) -> str: 378 def fix_none(s: Optional[str]) -> str:
485 if s is None: 379 if s is None:
486 return '' 380 return ''
487 return s 381 return s
488 382
489 return (fix_none(j.pmu).replace(',','_'), !! 383 return (j.desc is not None, fix_none(j.topic), fix_none(j.name), fix_none(j.pmu),
490 fix_none(j.metric_name)) 384 fix_none(j.metric_name))
491 385
492 global _pending_events !! 386 global _close_table
493 if not _pending_events: !! 387 if not _close_table:
494 return 388 return
495 389
496 global _pending_events_tblname !! 390 global _pending_events
497 if _pending_events_tblname.endswith('_sys'): <<
498 global _sys_event_tables <<
499 _sys_event_tables.append(_pending_events_t <<
500 else: <<
501 global event_tables <<
502 _event_tables.append(_pending_events_tblna <<
503 <<
504 first = True <<
505 last_pmu = None <<
506 last_name = None <<
507 pmus = set() <<
508 for event in sorted(_pending_events, key=eve 391 for event in sorted(_pending_events, key=event_cmp_key):
509 if last_pmu and last_pmu == event.pmu: !! 392 _args.output_file.write(event.to_c_string())
510 assert event.name != last_name, f"Duplic !! 393 _pending_events = []
511 if event.pmu != last_pmu: <<
512 if not first: <<
513 _args.output_file.write('};\n') <<
514 pmu_name = event.pmu.replace(',', '_') <<
515 _args.output_file.write( <<
516 f'static const struct compact_pmu_ev <<
517 first = False <<
518 last_pmu = event.pmu <<
519 pmus.add((event.pmu, pmu_name)) <<
520 <<
521 _args.output_file.write(event.to_c_string( <<
522 last_name = event.name <<
523 _pending_events = [] <<
524 <<
525 _args.output_file.write(f""" <<
526 }}; <<
527 <<
528 const struct pmu_table_entry {_pending_events_ <<
529 """) <<
530 for (pmu, tbl_pmu) in sorted(pmus): <<
531 pmu_name = f"{pmu}\\000" <<
532 _args.output_file.write(f"""{{ <<
533 .entries = {_pending_events_tblname}_{tbl <<
534 .num_entries = ARRAY_SIZE({_pending_event <<
535 .pmu_name = {{ {_bcs.offsets[pmu_name]} / <<
536 }}, <<
537 """) <<
538 _args.output_file.write('};\n\n') <<
539 <<
540 def print_pending_metrics() -> None: <<
541 """Optionally close metrics table.""" <<
542 394
543 def metric_cmp_key(j: JsonEvent) -> Tuple[bo <<
544 def fix_none(s: Optional[str]) -> str: <<
545 if s is None: <<
546 return '' <<
547 return s <<
548 <<
549 return (j.desc is not None, fix_none(j.pmu <<
550 <<
551 global _pending_metrics <<
552 if not _pending_metrics: <<
553 return <<
554 <<
555 global _pending_metrics_tblname <<
556 if _pending_metrics_tblname.endswith('_sys') <<
557 global _sys_metric_tables <<
558 _sys_metric_tables.append(_pending_metrics <<
559 else: <<
560 global metric_tables <<
561 _metric_tables.append(_pending_metrics_tbl <<
562 <<
563 first = True <<
564 last_pmu = None <<
565 pmus = set() <<
566 for metric in sorted(_pending_metrics, key=m <<
567 if metric.pmu != last_pmu: <<
568 if not first: <<
569 _args.output_file.write('};\n') <<
570 pmu_name = metric.pmu.replace(',', '_') <<
571 _args.output_file.write( <<
572 f'static const struct compact_pmu_ev <<
573 first = False <<
574 last_pmu = metric.pmu <<
575 pmus.add((metric.pmu, pmu_name)) <<
576 <<
577 _args.output_file.write(metric.to_c_string <<
578 _pending_metrics = [] <<
579 <<
580 _args.output_file.write(f""" <<
581 }}; <<
582 <<
583 const struct pmu_table_entry {_pending_metrics <<
584 """) <<
585 for (pmu, tbl_pmu) in sorted(pmus): <<
586 pmu_name = f"{pmu}\\000" <<
587 _args.output_file.write(f"""{{ <<
588 .entries = {_pending_metrics_tblname}_{tb <<
589 .num_entries = ARRAY_SIZE({_pending_metri <<
590 .pmu_name = {{ {_bcs.offsets[pmu_name]} / <<
591 }}, <<
592 """) <<
593 _args.output_file.write('};\n\n') 395 _args.output_file.write('};\n\n')
>> 396 _close_table = False
594 397
595 def get_topic(topic: str) -> str: 398 def get_topic(topic: str) -> str:
596 if topic.endswith('metrics.json'): 399 if topic.endswith('metrics.json'):
597 return 'metrics' 400 return 'metrics'
598 return removesuffix(topic, '.json').replace( 401 return removesuffix(topic, '.json').replace('-', ' ')
599 402
600 def preprocess_one_file(parents: Sequence[str] 403 def preprocess_one_file(parents: Sequence[str], item: os.DirEntry) -> None:
601 404
602 if item.is_dir(): 405 if item.is_dir():
603 return 406 return
604 407
605 # base dir or too deep 408 # base dir or too deep
606 level = len(parents) 409 level = len(parents)
607 if level == 0 or level > 4: 410 if level == 0 or level > 4:
608 return 411 return
609 412
610 # Ignore other directories. If the file name 413 # Ignore other directories. If the file name does not have a .json
611 # extension, ignore it. It could be a readme 414 # extension, ignore it. It could be a readme.txt for instance.
612 if not item.is_file() or not item.name.endsw 415 if not item.is_file() or not item.name.endswith('.json'):
613 return 416 return
614 417
615 if item.name == 'metricgroups.json': <<
616 metricgroup_descriptions = json.load(open( <<
617 for mgroup in metricgroup_descriptions: <<
618 assert len(mgroup) > 1, parents <<
619 description = f"{metricgroup_description <<
620 mgroup = f"{mgroup}\\000" <<
621 _bcs.add(mgroup, metric=True) <<
622 _bcs.add(description, metric=True) <<
623 _metricgroups[mgroup] = description <<
624 return <<
625 <<
626 topic = get_topic(item.name) 418 topic = get_topic(item.name)
627 for event in read_json_events(item.path, top 419 for event in read_json_events(item.path, topic):
628 pmu_name = f"{event.pmu}\\000" !! 420 _bcs.add(event.build_c_string())
629 if event.name: <<
630 _bcs.add(pmu_name, metric=False) <<
631 _bcs.add(event.build_c_string(metric=Fal <<
632 if event.metric_name: <<
633 _bcs.add(pmu_name, metric=True) <<
634 _bcs.add(event.build_c_string(metric=Tru <<
635 421
636 def process_one_file(parents: Sequence[str], i 422 def process_one_file(parents: Sequence[str], item: os.DirEntry) -> None:
637 """Process a JSON file during the main walk. 423 """Process a JSON file during the main walk."""
638 def is_leaf_dir_ignoring_sys(path: str) -> b !! 424 global _sys_event_tables
>> 425
>> 426 def is_leaf_dir(path: str) -> bool:
639 for item in os.scandir(path): 427 for item in os.scandir(path):
640 if item.is_dir() and item.name != 'sys': !! 428 if item.is_dir():
641 return False 429 return False
642 return True 430 return True
643 431
644 # Model directories are leaves (ignoring pos !! 432 # model directory, reset topic
645 # directories). The FTW will walk into the d !! 433 if item.is_dir() and is_leaf_dir(item.path):
646 # pending events and metrics and update the !! 434 print_events_table_suffix()
647 # model directory. <<
648 if item.is_dir() and is_leaf_dir_ignoring_sy <<
649 print_pending_events() <<
650 print_pending_metrics() <<
651 <<
652 global _pending_events_tblname <<
653 _pending_events_tblname = file_name_to_tab <<
654 global _pending_metrics_tblname <<
655 _pending_metrics_tblname = file_name_to_ta <<
656 435
>> 436 tblname = file_name_to_table_name(parents, item.name)
657 if item.name == 'sys': 437 if item.name == 'sys':
658 _sys_event_table_to_metric_table_mapping !! 438 _sys_event_tables.append(tblname)
>> 439 print_events_table_prefix(tblname)
659 return 440 return
660 441
661 # base dir or too deep 442 # base dir or too deep
662 level = len(parents) 443 level = len(parents)
663 if level == 0 or level > 4: 444 if level == 0 or level > 4:
664 return 445 return
665 446
666 # Ignore other directories. If the file name 447 # Ignore other directories. If the file name does not have a .json
667 # extension, ignore it. It could be a readme 448 # extension, ignore it. It could be a readme.txt for instance.
668 if not item.is_file() or not item.name.endsw !! 449 if not item.is_file() or not item.name.endswith('.json'):
669 return 450 return
670 451
671 add_events_table_entries(item, get_topic(ite 452 add_events_table_entries(item, get_topic(item.name))
672 453
673 454
674 def print_mapping_table(archs: Sequence[str]) 455 def print_mapping_table(archs: Sequence[str]) -> None:
675 """Read the mapfile and generate the struct 456 """Read the mapfile and generate the struct from cpuid string to event table."""
676 _args.output_file.write(""" 457 _args.output_file.write("""
677 /* Struct used to make the PMU event table imp 458 /* Struct used to make the PMU event table implementation opaque to callers. */
678 struct pmu_events_table { 459 struct pmu_events_table {
679 const struct pmu_table_entry *pmus; !! 460 const struct compact_pmu_event *entries;
680 uint32_t num_pmus; !! 461 size_t length;
681 }; <<
682 <<
683 /* Struct used to make the PMU metric table im <<
684 struct pmu_metrics_table { <<
685 const struct pmu_table_entry *pmus; <<
686 uint32_t num_pmus; <<
687 }; 462 };
688 463
689 /* 464 /*
690 * Map a CPU to its table of PMU events. The C 465 * Map a CPU to its table of PMU events. The CPU is identified by the
691 * cpuid field, which is an arch-specific iden 466 * cpuid field, which is an arch-specific identifier for the CPU.
692 * The identifier specified in tools/perf/pmu- 467 * The identifier specified in tools/perf/pmu-events/arch/xxx/mapfile
693 * must match the get_cpuid_str() in tools/per 468 * must match the get_cpuid_str() in tools/perf/arch/xxx/util/header.c)
694 * 469 *
695 * The cpuid can contain any character other 470 * The cpuid can contain any character other than the comma.
696 */ 471 */
697 struct pmu_events_map { 472 struct pmu_events_map {
698 const char *arch; 473 const char *arch;
699 const char *cpuid; 474 const char *cpuid;
700 struct pmu_events_table event_table; !! 475 struct pmu_events_table table;
701 struct pmu_metrics_table metric_table; <<
702 }; 476 };
703 477
704 /* 478 /*
705 * Global table mapping each known CPU for the 479 * Global table mapping each known CPU for the architecture to its
706 * table of PMU events. 480 * table of PMU events.
707 */ 481 */
708 const struct pmu_events_map pmu_events_map[] = 482 const struct pmu_events_map pmu_events_map[] = {
709 """) 483 """)
710 for arch in archs: 484 for arch in archs:
711 if arch == 'test': 485 if arch == 'test':
712 _args.output_file.write("""{ 486 _args.output_file.write("""{
713 \t.arch = "testarch", 487 \t.arch = "testarch",
714 \t.cpuid = "testcpu", 488 \t.cpuid = "testcpu",
715 \t.event_table = { !! 489 \t.table = {
716 \t\t.pmus = pmu_events__test_soc_cpu, !! 490 \t.entries = pme_test_soc_cpu,
717 \t\t.num_pmus = ARRAY_SIZE(pmu_events__test_so !! 491 \t.length = ARRAY_SIZE(pme_test_soc_cpu),
718 \t}, <<
719 \t.metric_table = { <<
720 \t\t.pmus = pmu_metrics__test_soc_cpu, <<
721 \t\t.num_pmus = ARRAY_SIZE(pmu_metrics__test_s <<
722 \t} 492 \t}
723 }, 493 },
724 """) 494 """)
725 else: 495 else:
726 with open(f'{_args.starting_dir}/{arch}/ 496 with open(f'{_args.starting_dir}/{arch}/mapfile.csv') as csvfile:
727 table = csv.reader(csvfile) 497 table = csv.reader(csvfile)
728 first = True 498 first = True
729 for row in table: 499 for row in table:
730 # Skip the first row or any row begi 500 # Skip the first row or any row beginning with #.
731 if not first and len(row) > 0 and no 501 if not first and len(row) > 0 and not row[0].startswith('#'):
732 event_tblname = file_name_to_table !! 502 tblname = file_name_to_table_name([], row[2].replace('/', '_'))
733 if event_tblname in _event_tables: <<
734 event_size = f'ARRAY_SIZE({event <<
735 else: <<
736 event_tblname = 'NULL' <<
737 event_size = '0' <<
738 metric_tblname = file_name_to_tabl <<
739 if metric_tblname in _metric_table <<
740 metric_size = f'ARRAY_SIZE({metr <<
741 else: <<
742 metric_tblname = 'NULL' <<
743 metric_size = '0' <<
744 if event_size == '0' and metric_si <<
745 continue <<
746 cpuid = row[0].replace('\\', '\\\\ 503 cpuid = row[0].replace('\\', '\\\\')
747 _args.output_file.write(f"""{{ 504 _args.output_file.write(f"""{{
748 \t.arch = "{arch}", 505 \t.arch = "{arch}",
749 \t.cpuid = "{cpuid}", 506 \t.cpuid = "{cpuid}",
750 \t.event_table = {{ !! 507 \t.table = {{
751 \t\t.pmus = {event_tblname}, !! 508 \t\t.entries = {tblname},
752 \t\t.num_pmus = {event_size} !! 509 \t\t.length = ARRAY_SIZE({tblname})
753 \t}}, <<
754 \t.metric_table = {{ <<
755 \t\t.pmus = {metric_tblname}, <<
756 \t\t.num_pmus = {metric_size} <<
757 \t}} 510 \t}}
758 }}, 511 }},
759 """) 512 """)
760 first = False 513 first = False
761 514
762 _args.output_file.write("""{ 515 _args.output_file.write("""{
763 \t.arch = 0, 516 \t.arch = 0,
764 \t.cpuid = 0, 517 \t.cpuid = 0,
765 \t.event_table = { 0, 0 }, !! 518 \t.table = { 0, 0 },
766 \t.metric_table = { 0, 0 }, <<
767 } 519 }
768 }; 520 };
769 """) 521 """)
770 522
771 523
772 def print_system_mapping_table() -> None: 524 def print_system_mapping_table() -> None:
773 """C struct mapping table array for tables f 525 """C struct mapping table array for tables from /sys directories."""
774 _args.output_file.write(""" 526 _args.output_file.write("""
775 struct pmu_sys_events { 527 struct pmu_sys_events {
776 \tconst char *name; 528 \tconst char *name;
777 \tstruct pmu_events_table event_table; !! 529 \tstruct pmu_events_table table;
778 \tstruct pmu_metrics_table metric_table; <<
779 }; 530 };
780 531
781 static const struct pmu_sys_events pmu_sys_eve 532 static const struct pmu_sys_events pmu_sys_event_tables[] = {
782 """) 533 """)
783 printed_metric_tables = [] <<
784 for tblname in _sys_event_tables: 534 for tblname in _sys_event_tables:
785 _args.output_file.write(f"""\t{{ 535 _args.output_file.write(f"""\t{{
786 \t\t.event_table = {{ !! 536 \t\t.table = {{
787 \t\t\t.pmus = {tblname}, !! 537 \t\t\t.entries = {tblname},
788 \t\t\t.num_pmus = ARRAY_SIZE({tblname}) !! 538 \t\t\t.length = ARRAY_SIZE({tblname})
789 \t\t}},""") <<
790 metric_tblname = _sys_event_table_to_metri <<
791 if metric_tblname in _sys_metric_tables: <<
792 _args.output_file.write(f""" <<
793 \t\t.metric_table = {{ <<
794 \t\t\t.pmus = {metric_tblname}, <<
795 \t\t\t.num_pmus = ARRAY_SIZE({metric_tblname}) <<
796 \t\t}},""") <<
797 printed_metric_tables.append(metric_tbln <<
798 _args.output_file.write(f""" <<
799 \t\t.name = \"{tblname}\", <<
800 \t}}, <<
801 """) <<
802 for tblname in _sys_metric_tables: <<
803 if tblname in printed_metric_tables: <<
804 continue <<
805 _args.output_file.write(f"""\t{{ <<
806 \t\t.metric_table = {{ <<
807 \t\t\t.pmus = {tblname}, <<
808 \t\t\t.num_pmus = ARRAY_SIZE({tblname}) <<
809 \t\t}}, 539 \t\t}},
810 \t\t.name = \"{tblname}\", 540 \t\t.name = \"{tblname}\",
811 \t}}, 541 \t}},
812 """) 542 """)
813 _args.output_file.write("""\t{ 543 _args.output_file.write("""\t{
814 \t\t.event_table = { 0, 0 }, !! 544 \t\t.table = { 0, 0 }
815 \t\t.metric_table = { 0, 0 }, <<
816 \t}, 545 \t},
817 }; 546 };
818 547
819 static void decompress_event(int offset, struc !! 548 static void decompress(int offset, struct pmu_event *pe)
820 { 549 {
821 \tconst char *p = &big_c_string[offset]; 550 \tconst char *p = &big_c_string[offset];
822 """) 551 """)
823 for attr in _json_event_attributes: 552 for attr in _json_event_attributes:
824 _args.output_file.write(f'\n\tpe->{attr} = !! 553 _args.output_file.write(f"""
825 if attr in _json_enum_attributes: !! 554 \tpe->{attr} = (*p == '\\0' ? NULL : p);
826 _args.output_file.write("*p - '0';\n") <<
827 else: <<
828 _args.output_file.write("(*p == '\\0' ? <<
829 if attr == _json_event_attributes[-1]: <<
830 continue <<
831 if attr in _json_enum_attributes: <<
832 _args.output_file.write('\tp++;') <<
833 else: <<
834 _args.output_file.write('\twhile (*p++); <<
835 _args.output_file.write("""} <<
836 <<
837 static void decompress_metric(int offset, stru <<
838 { <<
839 \tconst char *p = &big_c_string[offset]; <<
840 """) 555 """)
841 for attr in _json_metric_attributes: !! 556 if attr == _json_event_attributes[-1]:
842 _args.output_file.write(f'\n\tpm->{attr} = <<
843 if attr in _json_enum_attributes: <<
844 _args.output_file.write("*p - '0';\n") <<
845 else: <<
846 _args.output_file.write("(*p == '\\0' ? <<
847 if attr == _json_metric_attributes[-1]: <<
848 continue 557 continue
849 if attr in _json_enum_attributes: !! 558 _args.output_file.write('\twhile (*p++);')
850 _args.output_file.write('\tp++;') <<
851 else: <<
852 _args.output_file.write('\twhile (*p++); <<
853 _args.output_file.write("""} 559 _args.output_file.write("""}
854 560
855 static int pmu_events_table__for_each_event_pm !! 561 int pmu_events_table_for_each_event(const struct pmu_events_table *table,
856 <<
857 <<
858 <<
859 { <<
860 int ret; <<
861 struct pmu_event pe = { <<
862 .pmu = &big_c_string[pmu->pmu_ <<
863 }; <<
864 <<
865 for (uint32_t i = 0; i < pmu->num_entr <<
866 decompress_event(pmu->entries[ <<
867 if (!pe.name) <<
868 continue; <<
869 ret = fn(&pe, table, data); <<
870 if (ret) <<
871 return ret; <<
872 } <<
873 return 0; <<
874 } <<
875 <<
876 static int pmu_events_table__find_event_pmu(co <<
877 co <<
878 co <<
879 pm <<
880 vo <<
881 { <<
882 struct pmu_event pe = { <<
883 .pmu = &big_c_string[pmu->pmu_ <<
884 }; <<
885 int low = 0, high = pmu->num_entries - <<
886 <<
887 while (low <= high) { <<
888 int cmp, mid = (low + high) / <<
889 <<
890 decompress_event(pmu->entries[ <<
891 <<
892 if (!pe.name && !name) <<
893 goto do_call; <<
894 <<
895 if (!pe.name && name) { <<
896 low = mid + 1; <<
897 continue; <<
898 } <<
899 if (pe.name && !name) { <<
900 high = mid - 1; <<
901 continue; <<
902 } <<
903 <<
904 cmp = strcasecmp(pe.name, name <<
905 if (cmp < 0) { <<
906 low = mid + 1; <<
907 continue; <<
908 } <<
909 if (cmp > 0) { <<
910 high = mid - 1; <<
911 continue; <<
912 } <<
913 do_call: <<
914 return fn ? fn(&pe, table, dat <<
915 } <<
916 return PMU_EVENTS__NOT_FOUND; <<
917 } <<
918 <<
919 int pmu_events_table__for_each_event(const str <<
920 struct per <<
921 pmu_event_ 562 pmu_event_iter_fn fn,
922 void *data 563 void *data)
923 { 564 {
924 for (size_t i = 0; i < table->num_pmus !! 565 for (size_t i = 0; i < table->length; i++) {
925 const struct pmu_table_entry * !! 566 struct pmu_event pe;
926 const char *pmu_name = &big_c_ <<
927 int ret; 567 int ret;
928 568
929 if (pmu && !pmu__name_match(pm !! 569 decompress(table->entries[i].offset, &pe);
930 continue; !! 570 ret = fn(&pe, table, data);
931 <<
932 ret = pmu_events_table__for_ea <<
933 if (pmu || ret) <<
934 return ret; <<
935 } <<
936 return 0; <<
937 } <<
938 <<
939 int pmu_events_table__find_event(const struct <<
940 struct perf_p <<
941 const char *n <<
942 pmu_event_ite <<
943 void *data) <<
944 { <<
945 for (size_t i = 0; i < table->num_pmus <<
946 const struct pmu_table_entry * <<
947 const char *pmu_name = &big_c_ <<
948 int ret; <<
949 <<
950 if (!pmu__name_match(pmu, pmu_ <<
951 continue; <<
952 <<
953 ret = pmu_events_table__find_e <<
954 if (ret != PMU_EVENTS__NOT_FOU <<
955 return ret; <<
956 } <<
957 return PMU_EVENTS__NOT_FOUND; <<
958 } <<
959 <<
960 size_t pmu_events_table__num_events(const stru <<
961 struct per <<
962 { <<
963 size_t count = 0; <<
964 <<
965 for (size_t i = 0; i < table->num_pmus <<
966 const struct pmu_table_entry * <<
967 const char *pmu_name = &big_c_ <<
968 <<
969 if (pmu__name_match(pmu, pmu_n <<
970 count += table_pmu->nu <<
971 } <<
972 return count; <<
973 } <<
974 <<
975 static int pmu_metrics_table__for_each_metric_ <<
976 <<
977 <<
978 <<
979 { <<
980 int ret; <<
981 struct pmu_metric pm = { <<
982 .pmu = &big_c_string[pmu->pmu_ <<
983 }; <<
984 <<
985 for (uint32_t i = 0; i < pmu->num_entr <<
986 decompress_metric(pmu->entries <<
987 if (!pm.metric_expr) <<
988 continue; <<
989 ret = fn(&pm, table, data); <<
990 if (ret) <<
991 return ret; <<
992 } <<
993 return 0; <<
994 } <<
995 <<
996 int pmu_metrics_table__for_each_metric(const s <<
997 pmu_metri <<
998 void *dat <<
999 { <<
1000 for (size_t i = 0; i < table->num_pmu <<
1001 int ret = pmu_metrics_table__ <<
1002 <<
1003 <<
1004 if (ret) 571 if (ret)
1005 return ret; 572 return ret;
1006 } 573 }
1007 return 0; 574 return 0;
1008 } 575 }
1009 576
1010 static const struct pmu_events_map *map_for_p !! 577 const struct pmu_events_table *perf_pmu__find_table(struct perf_pmu *pmu)
1011 { 578 {
1012 static struct { !! 579 const struct pmu_events_table *table = NULL;
1013 const struct pmu_events_map * !! 580 char *cpuid = perf_pmu__getcpuid(pmu);
1014 struct perf_pmu *pmu; !! 581 int i;
1015 } last_result; <<
1016 static struct { <<
1017 const struct pmu_events_map * <<
1018 char *cpuid; <<
1019 } last_map_search; <<
1020 static bool has_last_result, has_last <<
1021 const struct pmu_events_map *map = NU <<
1022 char *cpuid = NULL; <<
1023 size_t i; <<
1024 <<
1025 if (has_last_result && last_result.pm <<
1026 return last_result.map; <<
1027 582
1028 cpuid = perf_pmu__getcpuid(pmu); !! 583 /* on some platforms which uses cpus map, cpuid can be NULL for
1029 <<
1030 /* <<
1031 * On some platforms which uses cpus <<
1032 * PMUs other than CORE PMUs. 584 * PMUs other than CORE PMUs.
1033 */ 585 */
1034 if (!cpuid) 586 if (!cpuid)
1035 goto out_update_last_result; <<
1036 <<
1037 if (has_last_map_search && !strcmp(la <<
1038 map = last_map_search.map; <<
1039 free(cpuid); <<
1040 } else { <<
1041 i = 0; <<
1042 for (;;) { <<
1043 map = &pmu_events_map <<
1044 <<
1045 if (!map->arch) { <<
1046 map = NULL; <<
1047 break; <<
1048 } <<
1049 <<
1050 if (!strcmp_cpuid_str <<
1051 break; <<
1052 } <<
1053 free(last_map_search.cpuid); <<
1054 last_map_search.cpuid = cpuid; <<
1055 last_map_search.map = map; <<
1056 has_last_map_search = true; <<
1057 } <<
1058 out_update_last_result: <<
1059 last_result.pmu = pmu; <<
1060 last_result.map = map; <<
1061 has_last_result = true; <<
1062 return map; <<
1063 } <<
1064 <<
1065 const struct pmu_events_table *perf_pmu__find <<
1066 { <<
1067 const struct pmu_events_map *map = ma <<
1068 <<
1069 if (!map) <<
1070 return NULL; 587 return NULL;
1071 588
1072 if (!pmu) !! 589 i = 0;
1073 return &map->event_table; !! 590 for (;;) {
1074 !! 591 const struct pmu_events_map *map = &pmu_events_map[i++];
1075 for (size_t i = 0; i < map->event_tab !! 592 if (!map->arch)
1076 const struct pmu_table_entry !! 593 break;
1077 const char *pmu_name = &big_c !! 594
1078 !! 595 if (!strcmp_cpuid_str(map->cpuid, cpuid)) {
1079 if (pmu__name_match(pmu, pmu_ !! 596 table = &map->table;
1080 return &map->event_t !! 597 break;
1081 } !! 598 }
1082 return NULL; <<
1083 } <<
1084 <<
1085 const struct pmu_metrics_table *perf_pmu__fin <<
1086 { <<
1087 const struct pmu_events_map *map = ma <<
1088 <<
1089 if (!map) <<
1090 return NULL; <<
1091 <<
1092 if (!pmu) <<
1093 return &map->metric_table; <<
1094 <<
1095 for (size_t i = 0; i < map->metric_ta <<
1096 const struct pmu_table_entry <<
1097 const char *pmu_name = &big_c <<
1098 <<
1099 if (pmu__name_match(pmu, pmu_ <<
1100 return &map->metri <<
1101 } 599 }
1102 return NULL; !! 600 free(cpuid);
>> 601 return table;
1103 } 602 }
1104 603
1105 const struct pmu_events_table *find_core_even 604 const struct pmu_events_table *find_core_events_table(const char *arch, const char *cpuid)
1106 { 605 {
1107 for (const struct pmu_events_map *tab 606 for (const struct pmu_events_map *tables = &pmu_events_map[0];
1108 tables->arch; 607 tables->arch;
1109 tables++) { 608 tables++) {
1110 if (!strcmp(tables->arch, arc 609 if (!strcmp(tables->arch, arch) && !strcmp_cpuid_str(tables->cpuid, cpuid))
1111 return &tables->event !! 610 return &tables->table;
1112 } <<
1113 return NULL; <<
1114 } <<
1115 <<
1116 const struct pmu_metrics_table *find_core_met <<
1117 { <<
1118 for (const struct pmu_events_map *tab <<
1119 tables->arch; <<
1120 tables++) { <<
1121 if (!strcmp(tables->arch, arc <<
1122 return &tables->metri <<
1123 } 611 }
1124 return NULL; 612 return NULL;
1125 } 613 }
1126 614
1127 int pmu_for_each_core_event(pmu_event_iter_fn 615 int pmu_for_each_core_event(pmu_event_iter_fn fn, void *data)
1128 { 616 {
1129 for (const struct pmu_events_map *tab 617 for (const struct pmu_events_map *tables = &pmu_events_map[0];
1130 tables->arch; 618 tables->arch;
1131 tables++) { 619 tables++) {
1132 int ret = pmu_events_table__f !! 620 int ret = pmu_events_table_for_each_event(&tables->table, fn, data);
1133 <<
1134 <<
1135 if (ret) <<
1136 return ret; <<
1137 } <<
1138 return 0; <<
1139 } <<
1140 <<
1141 int pmu_for_each_core_metric(pmu_metric_iter_ <<
1142 { <<
1143 for (const struct pmu_events_map *tab <<
1144 tables->arch; <<
1145 tables++) { <<
1146 int ret = pmu_metrics_table__ <<
1147 621
1148 if (ret) 622 if (ret)
1149 return ret; 623 return ret;
1150 } 624 }
1151 return 0; 625 return 0;
1152 } 626 }
1153 627
1154 const struct pmu_events_table *find_sys_event 628 const struct pmu_events_table *find_sys_events_table(const char *name)
1155 { 629 {
1156 for (const struct pmu_sys_events *tab 630 for (const struct pmu_sys_events *tables = &pmu_sys_event_tables[0];
1157 tables->name; 631 tables->name;
1158 tables++) { 632 tables++) {
1159 if (!strcmp(tables->name, nam 633 if (!strcmp(tables->name, name))
1160 return &tables->event !! 634 return &tables->table;
1161 } 635 }
1162 return NULL; 636 return NULL;
1163 } 637 }
1164 638
1165 int pmu_for_each_sys_event(pmu_event_iter_fn 639 int pmu_for_each_sys_event(pmu_event_iter_fn fn, void *data)
1166 { 640 {
1167 for (const struct pmu_sys_events *tab 641 for (const struct pmu_sys_events *tables = &pmu_sys_event_tables[0];
1168 tables->name; 642 tables->name;
1169 tables++) { 643 tables++) {
1170 int ret = pmu_events_table__f !! 644 int ret = pmu_events_table_for_each_event(&tables->table, fn, data);
1171 <<
1172 <<
1173 if (ret) <<
1174 return ret; <<
1175 } <<
1176 return 0; <<
1177 } <<
1178 <<
1179 int pmu_for_each_sys_metric(pmu_metric_iter_f <<
1180 { <<
1181 for (const struct pmu_sys_events *tab <<
1182 tables->name; <<
1183 tables++) { <<
1184 int ret = pmu_metrics_table__ <<
1185 645
1186 if (ret) 646 if (ret)
1187 return ret; 647 return ret;
1188 } 648 }
1189 return 0; 649 return 0;
1190 } 650 }
1191 """) 651 """)
1192 652
1193 def print_metricgroups() -> None: <<
1194 _args.output_file.write(""" <<
1195 static const int metricgroups[][2] = { <<
1196 """) <<
1197 for mgroup in sorted(_metricgroups): <<
1198 description = _metricgroups[mgroup] <<
1199 _args.output_file.write( <<
1200 f'\t{{ {_bcs.offsets[mgroup]}, {_bcs. <<
1201 ) <<
1202 _args.output_file.write(""" <<
1203 }; <<
1204 <<
1205 const char *describe_metricgroup(const char * <<
1206 { <<
1207 int low = 0, high = (int)ARRAY_SIZE(m <<
1208 <<
1209 while (low <= high) { <<
1210 int mid = (low + high) / 2; <<
1211 const char *mgroup = &big_c_s <<
1212 int cmp = strcmp(mgroup, grou <<
1213 <<
1214 if (cmp == 0) { <<
1215 return &big_c_string[ <<
1216 } else if (cmp < 0) { <<
1217 low = mid + 1; <<
1218 } else { <<
1219 high = mid - 1; <<
1220 } <<
1221 } <<
1222 return NULL; <<
1223 } <<
1224 """) <<
1225 653
1226 def main() -> None: 654 def main() -> None:
1227 global _args 655 global _args
1228 656
1229 def dir_path(path: str) -> str: 657 def dir_path(path: str) -> str:
1230 """Validate path is a directory for argpa 658 """Validate path is a directory for argparse."""
1231 if os.path.isdir(path): 659 if os.path.isdir(path):
1232 return path 660 return path
1233 raise argparse.ArgumentTypeError(f'\'{pat 661 raise argparse.ArgumentTypeError(f'\'{path}\' is not a valid directory')
1234 662
1235 def ftw(path: str, parents: Sequence[str], 663 def ftw(path: str, parents: Sequence[str],
1236 action: Callable[[Sequence[str], os 664 action: Callable[[Sequence[str], os.DirEntry], None]) -> None:
1237 """Replicate the directory/file walking b 665 """Replicate the directory/file walking behavior of C's file tree walk."""
1238 for item in sorted(os.scandir(path), key= !! 666 for item in os.scandir(path):
1239 if _args.model != 'all' and item.is_dir <<
1240 # Check if the model matches one in _ <<
1241 if len(parents) == _args.model.split( <<
1242 # We're testing the correct directo <<
1243 item_path = '/'.join(parents) + ('/ <<
1244 if 'test' not in item_path and item <<
1245 continue <<
1246 action(parents, item) 667 action(parents, item)
1247 if item.is_dir(): 668 if item.is_dir():
1248 ftw(item.path, parents + [item.name], 669 ftw(item.path, parents + [item.name], action)
1249 670
1250 ap = argparse.ArgumentParser() 671 ap = argparse.ArgumentParser()
1251 ap.add_argument('arch', help='Architecture 672 ap.add_argument('arch', help='Architecture name like x86')
1252 ap.add_argument('model', help='''Select a m <<
1253 reduce the code size. Normally set to "all". <<
1254 ARM64 with an implementor/model, the model mu <<
1255 such as "arm/cortex-a34".''', <<
1256 default='all') <<
1257 ap.add_argument( 673 ap.add_argument(
1258 'starting_dir', 674 'starting_dir',
1259 type=dir_path, 675 type=dir_path,
1260 help='Root of tree containing architect 676 help='Root of tree containing architecture directories containing json files'
1261 ) 677 )
1262 ap.add_argument( 678 ap.add_argument(
1263 'output_file', type=argparse.FileType(' 679 'output_file', type=argparse.FileType('w', encoding='utf-8'), nargs='?', default=sys.stdout)
1264 _args = ap.parse_args() 680 _args = ap.parse_args()
1265 681
1266 _args.output_file.write(f""" <<
1267 /* SPDX-License-Identifier: GPL-2.0 */ <<
1268 /* THIS FILE WAS AUTOGENERATED BY jevents.py <<
1269 """) <<
1270 _args.output_file.write(""" 682 _args.output_file.write("""
1271 #include <pmu-events/pmu-events.h> !! 683 #include "pmu-events/pmu-events.h"
1272 #include "util/header.h" 684 #include "util/header.h"
1273 #include "util/pmu.h" 685 #include "util/pmu.h"
1274 #include <string.h> 686 #include <string.h>
1275 #include <stddef.h> 687 #include <stddef.h>
1276 688
1277 struct compact_pmu_event { 689 struct compact_pmu_event {
1278 int offset; !! 690 int offset;
1279 }; <<
1280 <<
1281 struct pmu_table_entry { <<
1282 const struct compact_pmu_event *entri <<
1283 uint32_t num_entries; <<
1284 struct compact_pmu_event pmu_name; <<
1285 }; 691 };
1286 692
1287 """) 693 """)
1288 archs = [] 694 archs = []
1289 for item in os.scandir(_args.starting_dir): 695 for item in os.scandir(_args.starting_dir):
1290 if not item.is_dir(): 696 if not item.is_dir():
1291 continue 697 continue
1292 if item.name == _args.arch or _args.arch 698 if item.name == _args.arch or _args.arch == 'all' or item.name == 'test':
1293 archs.append(item.name) 699 archs.append(item.name)
1294 700
1295 if len(archs) < 2 and _args.arch != 'none': !! 701 if len(archs) < 2:
1296 raise IOError(f'Missing architecture dire 702 raise IOError(f'Missing architecture directory \'{_args.arch}\'')
1297 703
1298 archs.sort() 704 archs.sort()
1299 for arch in archs: 705 for arch in archs:
1300 arch_path = f'{_args.starting_dir}/{arch} 706 arch_path = f'{_args.starting_dir}/{arch}'
1301 preprocess_arch_std_files(arch_path) 707 preprocess_arch_std_files(arch_path)
1302 ftw(arch_path, [], preprocess_one_file) 708 ftw(arch_path, [], preprocess_one_file)
1303 709
1304 _bcs.compute() 710 _bcs.compute()
1305 _args.output_file.write('static const char 711 _args.output_file.write('static const char *const big_c_string =\n')
1306 for s in _bcs.big_string: 712 for s in _bcs.big_string:
1307 _args.output_file.write(s) 713 _args.output_file.write(s)
1308 _args.output_file.write(';\n\n') 714 _args.output_file.write(';\n\n')
1309 for arch in archs: 715 for arch in archs:
1310 arch_path = f'{_args.starting_dir}/{arch} 716 arch_path = f'{_args.starting_dir}/{arch}'
1311 ftw(arch_path, [], process_one_file) 717 ftw(arch_path, [], process_one_file)
1312 print_pending_events() !! 718 print_events_table_suffix()
1313 print_pending_metrics() <<
1314 719
1315 print_mapping_table(archs) 720 print_mapping_table(archs)
1316 print_system_mapping_table() 721 print_system_mapping_table()
1317 print_metricgroups() !! 722
1318 723
1319 if __name__ == '__main__': 724 if __name__ == '__main__':
1320 main() 725 main()
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