1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Arm Statistical Profiling Extensions (SPE) support
4 * Copyright (c) 2017-2018, Arm Ltd.
5 */
6
7 #include <stdio.h>
8 #include <string.h>
9 #include <endian.h>
10 #include <byteswap.h>
11 #include <linux/bitops.h>
12 #include <stdarg.h>
13 #include <linux/kernel.h>
14 #include <linux/unaligned.h>
15
16 #include "arm-spe-pkt-decoder.h"
17
18 static const char * const arm_spe_packet_name[] = {
19 [ARM_SPE_PAD] = "PAD",
20 [ARM_SPE_END] = "END",
21 [ARM_SPE_TIMESTAMP] = "TS",
22 [ARM_SPE_ADDRESS] = "ADDR",
23 [ARM_SPE_COUNTER] = "LAT",
24 [ARM_SPE_CONTEXT] = "CONTEXT",
25 [ARM_SPE_OP_TYPE] = "OP-TYPE",
26 [ARM_SPE_EVENTS] = "EVENTS",
27 [ARM_SPE_DATA_SOURCE] = "DATA-SOURCE",
28 };
29
arm_spe_pkt_name(enum arm_spe_pkt_type type)30 const char *arm_spe_pkt_name(enum arm_spe_pkt_type type)
31 {
32 return arm_spe_packet_name[type];
33 }
34
35 /*
36 * Extracts the field "sz" from header bits and converts to bytes:
37 * 00 : byte (1)
38 * 01 : halfword (2)
39 * 10 : word (4)
40 * 11 : doubleword (8)
41 */
arm_spe_payload_len(unsigned char hdr)42 static unsigned int arm_spe_payload_len(unsigned char hdr)
43 {
44 return 1U << ((hdr & GENMASK_ULL(5, 4)) >> 4);
45 }
46
arm_spe_get_payload(const unsigned char * buf,size_t len,unsigned char ext_hdr,struct arm_spe_pkt * packet)47 static int arm_spe_get_payload(const unsigned char *buf, size_t len,
48 unsigned char ext_hdr,
49 struct arm_spe_pkt *packet)
50 {
51 size_t payload_len = arm_spe_payload_len(buf[ext_hdr]);
52
53 if (len < 1 + ext_hdr + payload_len)
54 return ARM_SPE_NEED_MORE_BYTES;
55
56 buf += 1 + ext_hdr;
57
58 switch (payload_len) {
59 case 1: packet->payload = *(uint8_t *)buf; break;
60 case 2: packet->payload = get_unaligned_le16(buf); break;
61 case 4: packet->payload = get_unaligned_le32(buf); break;
62 case 8: packet->payload = get_unaligned_le64(buf); break;
63 default: return ARM_SPE_BAD_PACKET;
64 }
65
66 return 1 + ext_hdr + payload_len;
67 }
68
arm_spe_get_pad(struct arm_spe_pkt * packet)69 static int arm_spe_get_pad(struct arm_spe_pkt *packet)
70 {
71 packet->type = ARM_SPE_PAD;
72 return 1;
73 }
74
arm_spe_get_alignment(const unsigned char * buf,size_t len,struct arm_spe_pkt * packet)75 static int arm_spe_get_alignment(const unsigned char *buf, size_t len,
76 struct arm_spe_pkt *packet)
77 {
78 unsigned int alignment = 1 << ((buf[0] & 0xf) + 1);
79
80 if (len < alignment)
81 return ARM_SPE_NEED_MORE_BYTES;
82
83 packet->type = ARM_SPE_PAD;
84 return alignment - (((uintptr_t)buf) & (alignment - 1));
85 }
86
arm_spe_get_end(struct arm_spe_pkt * packet)87 static int arm_spe_get_end(struct arm_spe_pkt *packet)
88 {
89 packet->type = ARM_SPE_END;
90 return 1;
91 }
92
arm_spe_get_timestamp(const unsigned char * buf,size_t len,struct arm_spe_pkt * packet)93 static int arm_spe_get_timestamp(const unsigned char *buf, size_t len,
94 struct arm_spe_pkt *packet)
95 {
96 packet->type = ARM_SPE_TIMESTAMP;
97 return arm_spe_get_payload(buf, len, 0, packet);
98 }
99
arm_spe_get_events(const unsigned char * buf,size_t len,struct arm_spe_pkt * packet)100 static int arm_spe_get_events(const unsigned char *buf, size_t len,
101 struct arm_spe_pkt *packet)
102 {
103 packet->type = ARM_SPE_EVENTS;
104
105 /* we use index to identify Events with a less number of
106 * comparisons in arm_spe_pkt_desc(): E.g., the LLC-ACCESS,
107 * LLC-REFILL, and REMOTE-ACCESS events are identified if
108 * index > 1.
109 */
110 packet->index = arm_spe_payload_len(buf[0]);
111
112 return arm_spe_get_payload(buf, len, 0, packet);
113 }
114
arm_spe_get_data_source(const unsigned char * buf,size_t len,struct arm_spe_pkt * packet)115 static int arm_spe_get_data_source(const unsigned char *buf, size_t len,
116 struct arm_spe_pkt *packet)
117 {
118 packet->type = ARM_SPE_DATA_SOURCE;
119 return arm_spe_get_payload(buf, len, 0, packet);
120 }
121
arm_spe_get_context(const unsigned char * buf,size_t len,struct arm_spe_pkt * packet)122 static int arm_spe_get_context(const unsigned char *buf, size_t len,
123 struct arm_spe_pkt *packet)
124 {
125 packet->type = ARM_SPE_CONTEXT;
126 packet->index = SPE_CTX_PKT_HDR_INDEX(buf[0]);
127 return arm_spe_get_payload(buf, len, 0, packet);
128 }
129
arm_spe_get_op_type(const unsigned char * buf,size_t len,struct arm_spe_pkt * packet)130 static int arm_spe_get_op_type(const unsigned char *buf, size_t len,
131 struct arm_spe_pkt *packet)
132 {
133 packet->type = ARM_SPE_OP_TYPE;
134 packet->index = SPE_OP_PKT_HDR_CLASS(buf[0]);
135 return arm_spe_get_payload(buf, len, 0, packet);
136 }
137
arm_spe_get_counter(const unsigned char * buf,size_t len,const unsigned char ext_hdr,struct arm_spe_pkt * packet)138 static int arm_spe_get_counter(const unsigned char *buf, size_t len,
139 const unsigned char ext_hdr, struct arm_spe_pkt *packet)
140 {
141 packet->type = ARM_SPE_COUNTER;
142
143 if (ext_hdr)
144 packet->index = SPE_HDR_EXTENDED_INDEX(buf[0], buf[1]);
145 else
146 packet->index = SPE_HDR_SHORT_INDEX(buf[0]);
147
148 return arm_spe_get_payload(buf, len, ext_hdr, packet);
149 }
150
arm_spe_get_addr(const unsigned char * buf,size_t len,const unsigned char ext_hdr,struct arm_spe_pkt * packet)151 static int arm_spe_get_addr(const unsigned char *buf, size_t len,
152 const unsigned char ext_hdr, struct arm_spe_pkt *packet)
153 {
154 packet->type = ARM_SPE_ADDRESS;
155
156 if (ext_hdr)
157 packet->index = SPE_HDR_EXTENDED_INDEX(buf[0], buf[1]);
158 else
159 packet->index = SPE_HDR_SHORT_INDEX(buf[0]);
160
161 return arm_spe_get_payload(buf, len, ext_hdr, packet);
162 }
163
arm_spe_do_get_packet(const unsigned char * buf,size_t len,struct arm_spe_pkt * packet)164 static int arm_spe_do_get_packet(const unsigned char *buf, size_t len,
165 struct arm_spe_pkt *packet)
166 {
167 unsigned int hdr;
168 unsigned char ext_hdr = 0;
169
170 memset(packet, 0, sizeof(struct arm_spe_pkt));
171
172 if (!len)
173 return ARM_SPE_NEED_MORE_BYTES;
174
175 hdr = buf[0];
176
177 if (hdr == SPE_HEADER0_PAD)
178 return arm_spe_get_pad(packet);
179
180 if (hdr == SPE_HEADER0_END) /* no timestamp at end of record */
181 return arm_spe_get_end(packet);
182
183 if (hdr == SPE_HEADER0_TIMESTAMP)
184 return arm_spe_get_timestamp(buf, len, packet);
185
186 if ((hdr & SPE_HEADER0_MASK1) == SPE_HEADER0_EVENTS)
187 return arm_spe_get_events(buf, len, packet);
188
189 if ((hdr & SPE_HEADER0_MASK1) == SPE_HEADER0_SOURCE)
190 return arm_spe_get_data_source(buf, len, packet);
191
192 if ((hdr & SPE_HEADER0_MASK2) == SPE_HEADER0_CONTEXT)
193 return arm_spe_get_context(buf, len, packet);
194
195 if ((hdr & SPE_HEADER0_MASK2) == SPE_HEADER0_OP_TYPE)
196 return arm_spe_get_op_type(buf, len, packet);
197
198 if ((hdr & SPE_HEADER0_MASK2) == SPE_HEADER0_EXTENDED) {
199 /* 16-bit extended format header */
200 if (len == 1)
201 return ARM_SPE_BAD_PACKET;
202
203 ext_hdr = 1;
204 hdr = buf[1];
205 if (hdr == SPE_HEADER1_ALIGNMENT)
206 return arm_spe_get_alignment(buf, len, packet);
207 }
208
209 /*
210 * The short format header's byte 0 or the extended format header's
211 * byte 1 has been assigned to 'hdr', which uses the same encoding for
212 * address packet and counter packet, so don't need to distinguish if
213 * it's short format or extended format and handle in once.
214 */
215 if ((hdr & SPE_HEADER0_MASK3) == SPE_HEADER0_ADDRESS)
216 return arm_spe_get_addr(buf, len, ext_hdr, packet);
217
218 if ((hdr & SPE_HEADER0_MASK3) == SPE_HEADER0_COUNTER)
219 return arm_spe_get_counter(buf, len, ext_hdr, packet);
220
221 return ARM_SPE_BAD_PACKET;
222 }
223
arm_spe_get_packet(const unsigned char * buf,size_t len,struct arm_spe_pkt * packet)224 int arm_spe_get_packet(const unsigned char *buf, size_t len,
225 struct arm_spe_pkt *packet)
226 {
227 int ret;
228
229 ret = arm_spe_do_get_packet(buf, len, packet);
230 /* put multiple consecutive PADs on the same line, up to
231 * the fixed-width output format of 16 bytes per line.
232 */
233 if (ret > 0 && packet->type == ARM_SPE_PAD) {
234 while (ret < 16 && len > (size_t)ret && !buf[ret])
235 ret += 1;
236 }
237 return ret;
238 }
239
arm_spe_pkt_out_string(int * err,char ** buf_p,size_t * blen,const char * fmt,...)240 static int arm_spe_pkt_out_string(int *err, char **buf_p, size_t *blen,
241 const char *fmt, ...)
242 {
243 va_list ap;
244 int ret;
245
246 /* Bail out if any error occurred */
247 if (err && *err)
248 return *err;
249
250 va_start(ap, fmt);
251 ret = vsnprintf(*buf_p, *blen, fmt, ap);
252 va_end(ap);
253
254 if (ret < 0) {
255 if (err && !*err)
256 *err = ret;
257
258 /*
259 * A return value of *blen or more means that the output was
260 * truncated and the buffer is overrun.
261 */
262 } else if ((size_t)ret >= *blen) {
263 (*buf_p)[*blen - 1] = '\0';
264
265 /*
266 * Set *err to 'ret' to avoid overflow if tries to
267 * fill this buffer sequentially.
268 */
269 if (err && !*err)
270 *err = ret;
271 } else {
272 *buf_p += ret;
273 *blen -= ret;
274 }
275
276 return ret;
277 }
278
arm_spe_pkt_desc_event(const struct arm_spe_pkt * packet,char * buf,size_t buf_len)279 static int arm_spe_pkt_desc_event(const struct arm_spe_pkt *packet,
280 char *buf, size_t buf_len)
281 {
282 u64 payload = packet->payload;
283 int err = 0;
284
285 arm_spe_pkt_out_string(&err, &buf, &buf_len, "EV");
286
287 if (payload & BIT(EV_EXCEPTION_GEN))
288 arm_spe_pkt_out_string(&err, &buf, &buf_len, " EXCEPTION-GEN");
289 if (payload & BIT(EV_RETIRED))
290 arm_spe_pkt_out_string(&err, &buf, &buf_len, " RETIRED");
291 if (payload & BIT(EV_L1D_ACCESS))
292 arm_spe_pkt_out_string(&err, &buf, &buf_len, " L1D-ACCESS");
293 if (payload & BIT(EV_L1D_REFILL))
294 arm_spe_pkt_out_string(&err, &buf, &buf_len, " L1D-REFILL");
295 if (payload & BIT(EV_TLB_ACCESS))
296 arm_spe_pkt_out_string(&err, &buf, &buf_len, " TLB-ACCESS");
297 if (payload & BIT(EV_TLB_WALK))
298 arm_spe_pkt_out_string(&err, &buf, &buf_len, " TLB-REFILL");
299 if (payload & BIT(EV_NOT_TAKEN))
300 arm_spe_pkt_out_string(&err, &buf, &buf_len, " NOT-TAKEN");
301 if (payload & BIT(EV_MISPRED))
302 arm_spe_pkt_out_string(&err, &buf, &buf_len, " MISPRED");
303 if (payload & BIT(EV_LLC_ACCESS))
304 arm_spe_pkt_out_string(&err, &buf, &buf_len, " LLC-ACCESS");
305 if (payload & BIT(EV_LLC_MISS))
306 arm_spe_pkt_out_string(&err, &buf, &buf_len, " LLC-REFILL");
307 if (payload & BIT(EV_REMOTE_ACCESS))
308 arm_spe_pkt_out_string(&err, &buf, &buf_len, " REMOTE-ACCESS");
309 if (payload & BIT(EV_ALIGNMENT))
310 arm_spe_pkt_out_string(&err, &buf, &buf_len, " ALIGNMENT");
311 if (payload & BIT(EV_TRANSACTIONAL))
312 arm_spe_pkt_out_string(&err, &buf, &buf_len, " TXN");
313 if (payload & BIT(EV_PARTIAL_PREDICATE))
314 arm_spe_pkt_out_string(&err, &buf, &buf_len, " SVE-PARTIAL-PRED");
315 if (payload & BIT(EV_EMPTY_PREDICATE))
316 arm_spe_pkt_out_string(&err, &buf, &buf_len, " SVE-EMPTY-PRED");
317
318 return err;
319 }
320
arm_spe_pkt_desc_op_type(const struct arm_spe_pkt * packet,char * buf,size_t buf_len)321 static int arm_spe_pkt_desc_op_type(const struct arm_spe_pkt *packet,
322 char *buf, size_t buf_len)
323 {
324 u64 payload = packet->payload;
325 int err = 0;
326
327 switch (packet->index) {
328 case SPE_OP_PKT_HDR_CLASS_OTHER:
329 if (SPE_OP_PKT_IS_OTHER_SVE_OP(payload)) {
330 arm_spe_pkt_out_string(&err, &buf, &buf_len, "SVE-OTHER");
331
332 /* SVE effective vector length */
333 arm_spe_pkt_out_string(&err, &buf, &buf_len, " EVLEN %d",
334 SPE_OP_PKG_SVE_EVL(payload));
335
336 if (payload & SPE_OP_PKT_SVE_FP)
337 arm_spe_pkt_out_string(&err, &buf, &buf_len, " FP");
338 if (payload & SPE_OP_PKT_SVE_PRED)
339 arm_spe_pkt_out_string(&err, &buf, &buf_len, " PRED");
340 } else {
341 arm_spe_pkt_out_string(&err, &buf, &buf_len, "OTHER");
342 arm_spe_pkt_out_string(&err, &buf, &buf_len, " %s",
343 payload & SPE_OP_PKT_COND ?
344 "COND-SELECT" : "INSN-OTHER");
345 }
346 break;
347 case SPE_OP_PKT_HDR_CLASS_LD_ST_ATOMIC:
348 arm_spe_pkt_out_string(&err, &buf, &buf_len,
349 payload & 0x1 ? "ST" : "LD");
350
351 if (SPE_OP_PKT_IS_LDST_ATOMIC(payload)) {
352 if (payload & SPE_OP_PKT_AT)
353 arm_spe_pkt_out_string(&err, &buf, &buf_len, " AT");
354 if (payload & SPE_OP_PKT_EXCL)
355 arm_spe_pkt_out_string(&err, &buf, &buf_len, " EXCL");
356 if (payload & SPE_OP_PKT_AR)
357 arm_spe_pkt_out_string(&err, &buf, &buf_len, " AR");
358 }
359
360 switch (SPE_OP_PKT_LDST_SUBCLASS_GET(payload)) {
361 case SPE_OP_PKT_LDST_SUBCLASS_SIMD_FP:
362 arm_spe_pkt_out_string(&err, &buf, &buf_len, " SIMD-FP");
363 break;
364 case SPE_OP_PKT_LDST_SUBCLASS_GP_REG:
365 arm_spe_pkt_out_string(&err, &buf, &buf_len, " GP-REG");
366 break;
367 case SPE_OP_PKT_LDST_SUBCLASS_UNSPEC_REG:
368 arm_spe_pkt_out_string(&err, &buf, &buf_len, " UNSPEC-REG");
369 break;
370 case SPE_OP_PKT_LDST_SUBCLASS_NV_SYSREG:
371 arm_spe_pkt_out_string(&err, &buf, &buf_len, " NV-SYSREG");
372 break;
373 case SPE_OP_PKT_LDST_SUBCLASS_MTE_TAG:
374 arm_spe_pkt_out_string(&err, &buf, &buf_len, " MTE-TAG");
375 break;
376 case SPE_OP_PKT_LDST_SUBCLASS_MEMCPY:
377 arm_spe_pkt_out_string(&err, &buf, &buf_len, " MEMCPY");
378 break;
379 case SPE_OP_PKT_LDST_SUBCLASS_MEMSET:
380 arm_spe_pkt_out_string(&err, &buf, &buf_len, " MEMSET");
381 break;
382 default:
383 break;
384 }
385
386 if (SPE_OP_PKT_IS_LDST_SVE(payload)) {
387 /* SVE effective vector length */
388 arm_spe_pkt_out_string(&err, &buf, &buf_len, " EVLEN %d",
389 SPE_OP_PKG_SVE_EVL(payload));
390
391 if (payload & SPE_OP_PKT_SVE_PRED)
392 arm_spe_pkt_out_string(&err, &buf, &buf_len, " PRED");
393 if (payload & SPE_OP_PKT_SVE_SG)
394 arm_spe_pkt_out_string(&err, &buf, &buf_len, " SG");
395 }
396 break;
397 case SPE_OP_PKT_HDR_CLASS_BR_ERET:
398 arm_spe_pkt_out_string(&err, &buf, &buf_len, "B");
399
400 if (payload & SPE_OP_PKT_COND)
401 arm_spe_pkt_out_string(&err, &buf, &buf_len, " COND");
402 if (payload & SPE_OP_PKT_INDIRECT_BRANCH)
403 arm_spe_pkt_out_string(&err, &buf, &buf_len, " IND");
404 if (payload & SPE_OP_PKT_GCS)
405 arm_spe_pkt_out_string(&err, &buf, &buf_len, " GCS");
406 if (SPE_OP_PKT_CR_BL(payload))
407 arm_spe_pkt_out_string(&err, &buf, &buf_len, " CR-BL");
408 if (SPE_OP_PKT_CR_RET(payload))
409 arm_spe_pkt_out_string(&err, &buf, &buf_len, " CR-RET");
410 if (SPE_OP_PKT_CR_NON_BL_RET(payload))
411 arm_spe_pkt_out_string(&err, &buf, &buf_len, " CR-NON-BL-RET");
412 break;
413 default:
414 /* Unknown index */
415 err = -1;
416 break;
417 }
418
419 return err;
420 }
421
arm_spe_pkt_desc_addr(const struct arm_spe_pkt * packet,char * buf,size_t buf_len)422 static int arm_spe_pkt_desc_addr(const struct arm_spe_pkt *packet,
423 char *buf, size_t buf_len)
424 {
425 int ns, el, idx = packet->index;
426 int ch, pat;
427 u64 payload = packet->payload;
428 int err = 0;
429 static const char *idx_name[] = {"PC", "TGT", "VA", "PA", "PBT"};
430
431 switch (idx) {
432 case SPE_ADDR_PKT_HDR_INDEX_INS:
433 case SPE_ADDR_PKT_HDR_INDEX_BRANCH:
434 case SPE_ADDR_PKT_HDR_INDEX_PREV_BRANCH:
435 ns = !!SPE_ADDR_PKT_GET_NS(payload);
436 el = SPE_ADDR_PKT_GET_EL(payload);
437 payload = SPE_ADDR_PKT_ADDR_GET_BYTES_0_6(payload);
438 arm_spe_pkt_out_string(&err, &buf, &buf_len,
439 "%s 0x%llx el%d ns=%d",
440 idx_name[idx], payload, el, ns);
441 break;
442 case SPE_ADDR_PKT_HDR_INDEX_DATA_VIRT:
443 arm_spe_pkt_out_string(&err, &buf, &buf_len,
444 "VA 0x%llx", payload);
445 break;
446 case SPE_ADDR_PKT_HDR_INDEX_DATA_PHYS:
447 ns = !!SPE_ADDR_PKT_GET_NS(payload);
448 ch = !!SPE_ADDR_PKT_GET_CH(payload);
449 pat = SPE_ADDR_PKT_GET_PAT(payload);
450 payload = SPE_ADDR_PKT_ADDR_GET_BYTES_0_6(payload);
451 arm_spe_pkt_out_string(&err, &buf, &buf_len,
452 "PA 0x%llx ns=%d ch=%d pat=%x",
453 payload, ns, ch, pat);
454 break;
455 default:
456 /* Unknown index */
457 err = -1;
458 break;
459 }
460
461 return err;
462 }
463
arm_spe_pkt_desc_counter(const struct arm_spe_pkt * packet,char * buf,size_t buf_len)464 static int arm_spe_pkt_desc_counter(const struct arm_spe_pkt *packet,
465 char *buf, size_t buf_len)
466 {
467 u64 payload = packet->payload;
468 const char *name = arm_spe_pkt_name(packet->type);
469 int err = 0;
470
471 arm_spe_pkt_out_string(&err, &buf, &buf_len, "%s %d ", name,
472 (unsigned short)payload);
473
474 switch (packet->index) {
475 case SPE_CNT_PKT_HDR_INDEX_TOTAL_LAT:
476 arm_spe_pkt_out_string(&err, &buf, &buf_len, "TOT");
477 break;
478 case SPE_CNT_PKT_HDR_INDEX_ISSUE_LAT:
479 arm_spe_pkt_out_string(&err, &buf, &buf_len, "ISSUE");
480 break;
481 case SPE_CNT_PKT_HDR_INDEX_TRANS_LAT:
482 arm_spe_pkt_out_string(&err, &buf, &buf_len, "XLAT");
483 break;
484 default:
485 break;
486 }
487
488 return err;
489 }
490
arm_spe_pkt_desc(const struct arm_spe_pkt * packet,char * buf,size_t buf_len)491 int arm_spe_pkt_desc(const struct arm_spe_pkt *packet, char *buf,
492 size_t buf_len)
493 {
494 int idx = packet->index;
495 unsigned long long payload = packet->payload;
496 const char *name = arm_spe_pkt_name(packet->type);
497 char *buf_orig = buf;
498 size_t blen = buf_len;
499 int err = 0;
500
501 switch (packet->type) {
502 case ARM_SPE_BAD:
503 case ARM_SPE_PAD:
504 case ARM_SPE_END:
505 arm_spe_pkt_out_string(&err, &buf, &blen, "%s", name);
506 break;
507 case ARM_SPE_EVENTS:
508 err = arm_spe_pkt_desc_event(packet, buf, buf_len);
509 break;
510 case ARM_SPE_OP_TYPE:
511 err = arm_spe_pkt_desc_op_type(packet, buf, buf_len);
512 break;
513 case ARM_SPE_DATA_SOURCE:
514 case ARM_SPE_TIMESTAMP:
515 arm_spe_pkt_out_string(&err, &buf, &blen, "%s %lld", name, payload);
516 break;
517 case ARM_SPE_ADDRESS:
518 err = arm_spe_pkt_desc_addr(packet, buf, buf_len);
519 break;
520 case ARM_SPE_CONTEXT:
521 arm_spe_pkt_out_string(&err, &buf, &blen, "%s 0x%lx el%d",
522 name, (unsigned long)payload, idx + 1);
523 break;
524 case ARM_SPE_COUNTER:
525 err = arm_spe_pkt_desc_counter(packet, buf, buf_len);
526 break;
527 default:
528 /* Unknown packet type */
529 err = -1;
530 break;
531 }
532
533 /* Output raw data if detect any error */
534 if (err) {
535 err = 0;
536 arm_spe_pkt_out_string(&err, &buf_orig, &buf_len, "%s 0x%llx (%d)",
537 name, payload, packet->index);
538 }
539
540 return err;
541 }
542