aboutsummaryrefslogtreecommitdiffstats
path: root/tools
diff options
context:
space:
mode:
Diffstat (limited to 'tools')
-rw-r--r--tools/firewire/Makefile19
-rw-r--r--tools/firewire/decode-fcp.c213
-rw-r--r--tools/firewire/list.h62
-rw-r--r--tools/firewire/nosy-dump.c1031
-rw-r--r--tools/firewire/nosy-dump.h173
-rw-r--r--tools/perf/arch/arm/Makefile4
-rw-r--r--tools/perf/arch/arm/util/dwarf-regs.c64
7 files changed, 1566 insertions, 0 deletions
diff --git a/tools/firewire/Makefile b/tools/firewire/Makefile
new file mode 100644
index 000000000000..81767adaae7d
--- /dev/null
+++ b/tools/firewire/Makefile
@@ -0,0 +1,19 @@
1prefix = /usr
2nosy-dump-version = 0.4
3
4CC = gcc
5
6all : nosy-dump
7
8nosy-dump : CFLAGS = -Wall -O2 -g
9nosy-dump : CPPFLAGS = -DVERSION=\"$(nosy-dump-version)\" -I../../drivers/firewire
10nosy-dump : LDFLAGS = -g
11nosy-dump : LDLIBS = -lpopt
12
13nosy-dump : nosy-dump.o decode-fcp.o
14
15clean :
16 rm -rf *.o nosy-dump
17
18install :
19 install nosy-dump $(prefix)/bin/nosy-dump
diff --git a/tools/firewire/decode-fcp.c b/tools/firewire/decode-fcp.c
new file mode 100644
index 000000000000..e41223b6a4c8
--- /dev/null
+++ b/tools/firewire/decode-fcp.c
@@ -0,0 +1,213 @@
1#include <linux/firewire-constants.h>
2#include <stdio.h>
3#include <stdlib.h>
4
5#include "list.h"
6#include "nosy-dump.h"
7
8#define CSR_FCP_COMMAND 0xfffff0000b00ull
9#define CSR_FCP_RESPONSE 0xfffff0000d00ull
10
11static const char * const ctype_names[] = {
12 [0x0] = "control", [0x8] = "not implemented",
13 [0x1] = "status", [0x9] = "accepted",
14 [0x2] = "specific inquiry", [0xa] = "rejected",
15 [0x3] = "notify", [0xb] = "in transition",
16 [0x4] = "general inquiry", [0xc] = "stable",
17 [0x5] = "(reserved 0x05)", [0xd] = "changed",
18 [0x6] = "(reserved 0x06)", [0xe] = "(reserved 0x0e)",
19 [0x7] = "(reserved 0x07)", [0xf] = "interim",
20};
21
22static const char * const subunit_type_names[] = {
23 [0x00] = "monitor", [0x10] = "(reserved 0x10)",
24 [0x01] = "audio", [0x11] = "(reserved 0x11)",
25 [0x02] = "printer", [0x12] = "(reserved 0x12)",
26 [0x03] = "disc", [0x13] = "(reserved 0x13)",
27 [0x04] = "tape recorder/player",[0x14] = "(reserved 0x14)",
28 [0x05] = "tuner", [0x15] = "(reserved 0x15)",
29 [0x06] = "ca", [0x16] = "(reserved 0x16)",
30 [0x07] = "camera", [0x17] = "(reserved 0x17)",
31 [0x08] = "(reserved 0x08)", [0x18] = "(reserved 0x18)",
32 [0x09] = "panel", [0x19] = "(reserved 0x19)",
33 [0x0a] = "bulletin board", [0x1a] = "(reserved 0x1a)",
34 [0x0b] = "camera storage", [0x1b] = "(reserved 0x1b)",
35 [0x0c] = "(reserved 0x0c)", [0x1c] = "vendor unique",
36 [0x0d] = "(reserved 0x0d)", [0x1d] = "all subunit types",
37 [0x0e] = "(reserved 0x0e)", [0x1e] = "subunit_type extended to next byte",
38 [0x0f] = "(reserved 0x0f)", [0x1f] = "unit",
39};
40
41struct avc_enum {
42 int value;
43 const char *name;
44};
45
46struct avc_field {
47 const char *name; /* Short name for field. */
48 int offset; /* Location of field, specified in bits; */
49 /* negative means from end of packet. */
50 int width; /* Width of field, 0 means use data_length. */
51 struct avc_enum *names;
52};
53
54struct avc_opcode_info {
55 const char *name;
56 struct avc_field fields[8];
57};
58
59struct avc_enum power_field_names[] = {
60 { 0x70, "on" },
61 { 0x60, "off" },
62 { }
63};
64
65static const struct avc_opcode_info opcode_info[256] = {
66
67 /* TA Document 1999026 */
68 /* AV/C Digital Interface Command Set General Specification 4.0 */
69 [0xb2] = { "power", {
70 { "state", 0, 8, power_field_names }
71 }
72 },
73 [0x30] = { "unit info", {
74 { "foo", 0, 8 },
75 { "unit_type", 8, 5 },
76 { "unit", 13, 3 },
77 { "company id", 16, 24 },
78 }
79 },
80 [0x31] = { "subunit info" },
81 [0x01] = { "reserve" },
82 [0xb0] = { "version" },
83 [0x00] = { "vendor dependent" },
84 [0x02] = { "plug info" },
85 [0x12] = { "channel usage" },
86 [0x24] = { "connect" },
87 [0x20] = { "connect av" },
88 [0x22] = { "connections" },
89 [0x11] = { "digital input" },
90 [0x10] = { "digital output" },
91 [0x25] = { "disconnect" },
92 [0x21] = { "disconnect av" },
93 [0x19] = { "input plug signal format" },
94 [0x18] = { "output plug signal format" },
95 [0x1f] = { "general bus setup" },
96
97 /* TA Document 1999025 */
98 /* AV/C Descriptor Mechanism Specification Version 1.0 */
99 [0x0c] = { "create descriptor" },
100 [0x08] = { "open descriptor" },
101 [0x09] = { "read descriptor" },
102 [0x0a] = { "write descriptor" },
103 [0x05] = { "open info block" },
104 [0x06] = { "read info block" },
105 [0x07] = { "write info block" },
106 [0x0b] = { "search descriptor" },
107 [0x0d] = { "object number select" },
108
109 /* TA Document 1999015 */
110 /* AV/C Command Set for Rate Control of Isochronous Data Flow 1.0 */
111 [0xb3] = { "rate", {
112 { "subfunction", 0, 8 },
113 { "result", 8, 8 },
114 { "plug_type", 16, 8 },
115 { "plug_id", 16, 8 },
116 }
117 },
118
119 /* TA Document 1999008 */
120 /* AV/C Audio Subunit Specification 1.0 */
121 [0xb8] = { "function block" },
122
123 /* TA Document 2001001 */
124 /* AV/C Panel Subunit Specification 1.1 */
125 [0x7d] = { "gui update" },
126 [0x7e] = { "push gui data" },
127 [0x7f] = { "user action" },
128 [0x7c] = { "pass through" },
129
130 /* */
131 [0x26] = { "asynchronous connection" },
132};
133
134struct avc_frame {
135 uint32_t operand0:8;
136 uint32_t opcode:8;
137 uint32_t subunit_id:3;
138 uint32_t subunit_type:5;
139 uint32_t ctype:4;
140 uint32_t cts:4;
141};
142
143static void
144decode_avc(struct link_transaction *t)
145{
146 struct avc_frame *frame =
147 (struct avc_frame *) t->request->packet.write_block.data;
148 const struct avc_opcode_info *info;
149 const char *name;
150 char buffer[32];
151 int i;
152
153 info = &opcode_info[frame->opcode];
154 if (info->name == NULL) {
155 snprintf(buffer, sizeof(buffer),
156 "(unknown opcode 0x%02x)", frame->opcode);
157 name = buffer;
158 } else {
159 name = info->name;
160 }
161
162 printf("av/c %s, subunit_type=%s, subunit_id=%d, opcode=%s",
163 ctype_names[frame->ctype], subunit_type_names[frame->subunit_type],
164 frame->subunit_id, name);
165
166 for (i = 0; info->fields[i].name != NULL; i++)
167 printf(", %s", info->fields[i].name);
168
169 printf("\n");
170}
171
172int
173decode_fcp(struct link_transaction *t)
174{
175 struct avc_frame *frame =
176 (struct avc_frame *) t->request->packet.write_block.data;
177 unsigned long long offset =
178 ((unsigned long long) t->request->packet.common.offset_high << 32) |
179 t->request->packet.common.offset_low;
180
181 if (t->request->packet.common.tcode != TCODE_WRITE_BLOCK_REQUEST)
182 return 0;
183
184 if (offset == CSR_FCP_COMMAND || offset == CSR_FCP_RESPONSE) {
185 switch (frame->cts) {
186 case 0x00:
187 decode_avc(t);
188 break;
189 case 0x01:
190 printf("cal fcp frame (cts=0x01)\n");
191 break;
192 case 0x02:
193 printf("ehs fcp frame (cts=0x02)\n");
194 break;
195 case 0x03:
196 printf("havi fcp frame (cts=0x03)\n");
197 break;
198 case 0x0e:
199 printf("vendor specific fcp frame (cts=0x0e)\n");
200 break;
201 case 0x0f:
202 printf("extended cts\n");
203 break;
204 default:
205 printf("reserved fcp frame (ctx=0x%02x)\n", frame->cts);
206 break;
207 }
208 return 1;
209 }
210
211 return 0;
212}
213
diff --git a/tools/firewire/list.h b/tools/firewire/list.h
new file mode 100644
index 000000000000..41f4bdadf634
--- /dev/null
+++ b/tools/firewire/list.h
@@ -0,0 +1,62 @@
1struct list {
2 struct list *next, *prev;
3};
4
5static inline void
6list_init(struct list *list)
7{
8 list->next = list;
9 list->prev = list;
10}
11
12static inline int
13list_empty(struct list *list)
14{
15 return list->next == list;
16}
17
18static inline void
19list_insert(struct list *link, struct list *new_link)
20{
21 new_link->prev = link->prev;
22 new_link->next = link;
23 new_link->prev->next = new_link;
24 new_link->next->prev = new_link;
25}
26
27static inline void
28list_append(struct list *list, struct list *new_link)
29{
30 list_insert((struct list *)list, new_link);
31}
32
33static inline void
34list_prepend(struct list *list, struct list *new_link)
35{
36 list_insert(list->next, new_link);
37}
38
39static inline void
40list_remove(struct list *link)
41{
42 link->prev->next = link->next;
43 link->next->prev = link->prev;
44}
45
46#define list_entry(link, type, member) \
47 ((type *)((char *)(link)-(unsigned long)(&((type *)0)->member)))
48
49#define list_head(list, type, member) \
50 list_entry((list)->next, type, member)
51
52#define list_tail(list, type, member) \
53 list_entry((list)->prev, type, member)
54
55#define list_next(elm, member) \
56 list_entry((elm)->member.next, typeof(*elm), member)
57
58#define list_for_each_entry(pos, list, member) \
59 for (pos = list_head(list, typeof(*pos), member); \
60 &pos->member != (list); \
61 pos = list_next(pos, member))
62
diff --git a/tools/firewire/nosy-dump.c b/tools/firewire/nosy-dump.c
new file mode 100644
index 000000000000..f93b776370b6
--- /dev/null
+++ b/tools/firewire/nosy-dump.c
@@ -0,0 +1,1031 @@
1/*
2 * nosy-dump - Interface to snoop mode driver for TI PCILynx 1394 controllers
3 * Copyright (C) 2002-2006 Kristian Høgsberg
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software Foundation,
17 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 */
19
20#include <byteswap.h>
21#include <endian.h>
22#include <fcntl.h>
23#include <linux/firewire-constants.h>
24#include <poll.h>
25#include <popt.h>
26#include <signal.h>
27#include <stdio.h>
28#include <stdlib.h>
29#include <string.h>
30#include <sys/ioctl.h>
31#include <sys/time.h>
32#include <termios.h>
33#include <unistd.h>
34
35#include "list.h"
36#include "nosy-dump.h"
37#include "nosy-user.h"
38
39enum {
40 PACKET_FIELD_DETAIL = 0x01,
41 PACKET_FIELD_DATA_LENGTH = 0x02,
42 /* Marks the fields we print in transaction view. */
43 PACKET_FIELD_TRANSACTION = 0x04,
44};
45
46static void print_packet(uint32_t *data, size_t length);
47static void decode_link_packet(struct link_packet *packet, size_t length,
48 int include_flags, int exclude_flags);
49static int run = 1;
50sig_t sys_sigint_handler;
51
52static char *option_nosy_device = "/dev/nosy";
53static char *option_view = "packet";
54static char *option_output;
55static char *option_input;
56static int option_hex;
57static int option_iso;
58static int option_cycle_start;
59static int option_version;
60static int option_verbose;
61
62enum {
63 VIEW_TRANSACTION,
64 VIEW_PACKET,
65 VIEW_STATS,
66};
67
68static const struct poptOption options[] = {
69 {
70 .longName = "device",
71 .shortName = 'd',
72 .argInfo = POPT_ARG_STRING,
73 .arg = &option_nosy_device,
74 .descrip = "Path to nosy device.",
75 .argDescrip = "DEVICE"
76 },
77 {
78 .longName = "view",
79 .argInfo = POPT_ARG_STRING,
80 .arg = &option_view,
81 .descrip = "Specify view of bus traffic: packet, transaction or stats.",
82 .argDescrip = "VIEW"
83 },
84 {
85 .longName = "hex",
86 .shortName = 'x',
87 .argInfo = POPT_ARG_NONE,
88 .arg = &option_hex,
89 .descrip = "Print each packet in hex.",
90 },
91 {
92 .longName = "iso",
93 .argInfo = POPT_ARG_NONE,
94 .arg = &option_iso,
95 .descrip = "Print iso packets.",
96 },
97 {
98 .longName = "cycle-start",
99 .argInfo = POPT_ARG_NONE,
100 .arg = &option_cycle_start,
101 .descrip = "Print cycle start packets.",
102 },
103 {
104 .longName = "verbose",
105 .shortName = 'v',
106 .argInfo = POPT_ARG_NONE,
107 .arg = &option_verbose,
108 .descrip = "Verbose packet view.",
109 },
110 {
111 .longName = "output",
112 .shortName = 'o',
113 .argInfo = POPT_ARG_STRING,
114 .arg = &option_output,
115 .descrip = "Log to output file.",
116 .argDescrip = "FILENAME"
117 },
118 {
119 .longName = "input",
120 .shortName = 'i',
121 .argInfo = POPT_ARG_STRING,
122 .arg = &option_input,
123 .descrip = "Decode log from file.",
124 .argDescrip = "FILENAME"
125 },
126 {
127 .longName = "version",
128 .argInfo = POPT_ARG_NONE,
129 .arg = &option_version,
130 .descrip = "Specify print version info.",
131 },
132 POPT_AUTOHELP
133 POPT_TABLEEND
134};
135
136/* Allow all ^C except the first to interrupt the program in the usual way. */
137static void
138sigint_handler(int signal_num)
139{
140 if (run == 1) {
141 run = 0;
142 signal(SIGINT, SIG_DFL);
143 }
144}
145
146static struct subaction *
147subaction_create(uint32_t *data, size_t length)
148{
149 struct subaction *sa;
150
151 /* we put the ack in the subaction struct for easy access. */
152 sa = malloc(sizeof *sa - sizeof sa->packet + length);
153 sa->ack = data[length / 4 - 1];
154 sa->length = length;
155 memcpy(&sa->packet, data, length);
156
157 return sa;
158}
159
160static void
161subaction_destroy(struct subaction *sa)
162{
163 free(sa);
164}
165
166static struct list pending_transaction_list = {
167 &pending_transaction_list, &pending_transaction_list
168};
169
170static struct link_transaction *
171link_transaction_lookup(int request_node, int response_node, int tlabel)
172{
173 struct link_transaction *t;
174
175 list_for_each_entry(t, &pending_transaction_list, link) {
176 if (t->request_node == request_node &&
177 t->response_node == response_node &&
178 t->tlabel == tlabel)
179 return t;
180 }
181
182 t = malloc(sizeof *t);
183 t->request_node = request_node;
184 t->response_node = response_node;
185 t->tlabel = tlabel;
186 list_init(&t->request_list);
187 list_init(&t->response_list);
188
189 list_append(&pending_transaction_list, &t->link);
190
191 return t;
192}
193
194static void
195link_transaction_destroy(struct link_transaction *t)
196{
197 struct subaction *sa;
198
199 while (!list_empty(&t->request_list)) {
200 sa = list_head(&t->request_list, struct subaction, link);
201 list_remove(&sa->link);
202 subaction_destroy(sa);
203 }
204 while (!list_empty(&t->response_list)) {
205 sa = list_head(&t->response_list, struct subaction, link);
206 list_remove(&sa->link);
207 subaction_destroy(sa);
208 }
209 free(t);
210}
211
212struct protocol_decoder {
213 const char *name;
214 int (*decode)(struct link_transaction *t);
215};
216
217static const struct protocol_decoder protocol_decoders[] = {
218 { "FCP", decode_fcp }
219};
220
221static void
222handle_transaction(struct link_transaction *t)
223{
224 struct subaction *sa;
225 int i;
226
227 if (!t->request) {
228 printf("BUG in handle_transaction\n");
229 return;
230 }
231
232 for (i = 0; i < array_length(protocol_decoders); i++)
233 if (protocol_decoders[i].decode(t))
234 break;
235
236 /* HACK: decode only fcp right now. */
237 return;
238
239 decode_link_packet(&t->request->packet, t->request->length,
240 PACKET_FIELD_TRANSACTION, 0);
241 if (t->response)
242 decode_link_packet(&t->response->packet, t->request->length,
243 PACKET_FIELD_TRANSACTION, 0);
244 else
245 printf("[no response]");
246
247 if (option_verbose) {
248 list_for_each_entry(sa, &t->request_list, link)
249 print_packet((uint32_t *) &sa->packet, sa->length);
250 list_for_each_entry(sa, &t->response_list, link)
251 print_packet((uint32_t *) &sa->packet, sa->length);
252 }
253 printf("\r\n");
254
255 link_transaction_destroy(t);
256}
257
258static void
259clear_pending_transaction_list(void)
260{
261 struct link_transaction *t;
262
263 while (!list_empty(&pending_transaction_list)) {
264 t = list_head(&pending_transaction_list,
265 struct link_transaction, link);
266 list_remove(&t->link);
267 link_transaction_destroy(t);
268 /* print unfinished transactions */
269 }
270}
271
272static const char * const tcode_names[] = {
273 [0x0] = "write_quadlet_request", [0x6] = "read_quadlet_response",
274 [0x1] = "write_block_request", [0x7] = "read_block_response",
275 [0x2] = "write_response", [0x8] = "cycle_start",
276 [0x3] = "reserved", [0x9] = "lock_request",
277 [0x4] = "read_quadlet_request", [0xa] = "iso_data",
278 [0x5] = "read_block_request", [0xb] = "lock_response",
279};
280
281static const char * const ack_names[] = {
282 [0x0] = "no ack", [0x8] = "reserved (0x08)",
283 [0x1] = "ack_complete", [0x9] = "reserved (0x09)",
284 [0x2] = "ack_pending", [0xa] = "reserved (0x0a)",
285 [0x3] = "reserved (0x03)", [0xb] = "reserved (0x0b)",
286 [0x4] = "ack_busy_x", [0xc] = "reserved (0x0c)",
287 [0x5] = "ack_busy_a", [0xd] = "ack_data_error",
288 [0x6] = "ack_busy_b", [0xe] = "ack_type_error",
289 [0x7] = "reserved (0x07)", [0xf] = "reserved (0x0f)",
290};
291
292static const char * const rcode_names[] = {
293 [0x0] = "complete", [0x4] = "conflict_error",
294 [0x1] = "reserved (0x01)", [0x5] = "data_error",
295 [0x2] = "reserved (0x02)", [0x6] = "type_error",
296 [0x3] = "reserved (0x03)", [0x7] = "address_error",
297};
298
299static const char * const retry_names[] = {
300 [0x0] = "retry_1",
301 [0x1] = "retry_x",
302 [0x2] = "retry_a",
303 [0x3] = "retry_b",
304};
305
306enum {
307 PACKET_RESERVED,
308 PACKET_REQUEST,
309 PACKET_RESPONSE,
310 PACKET_OTHER,
311};
312
313struct packet_info {
314 const char *name;
315 int type;
316 int response_tcode;
317 const struct packet_field *fields;
318 int field_count;
319};
320
321struct packet_field {
322 const char *name; /* Short name for field. */
323 int offset; /* Location of field, specified in bits; */
324 /* negative means from end of packet. */
325 int width; /* Width of field, 0 means use data_length. */
326 int flags; /* Show options. */
327 const char * const *value_names;
328};
329
330#define COMMON_REQUEST_FIELDS \
331 { "dest", 0, 16, PACKET_FIELD_TRANSACTION }, \
332 { "tl", 16, 6 }, \
333 { "rt", 22, 2, PACKET_FIELD_DETAIL, retry_names }, \
334 { "tcode", 24, 4, PACKET_FIELD_TRANSACTION, tcode_names }, \
335 { "pri", 28, 4, PACKET_FIELD_DETAIL }, \
336 { "src", 32, 16, PACKET_FIELD_TRANSACTION }, \
337 { "offs", 48, 48, PACKET_FIELD_TRANSACTION }
338
339#define COMMON_RESPONSE_FIELDS \
340 { "dest", 0, 16 }, \
341 { "tl", 16, 6 }, \
342 { "rt", 22, 2, PACKET_FIELD_DETAIL, retry_names }, \
343 { "tcode", 24, 4, 0, tcode_names }, \
344 { "pri", 28, 4, PACKET_FIELD_DETAIL }, \
345 { "src", 32, 16 }, \
346 { "rcode", 48, 4, PACKET_FIELD_TRANSACTION, rcode_names }
347
348static const struct packet_field read_quadlet_request_fields[] = {
349 COMMON_REQUEST_FIELDS,
350 { "crc", 96, 32, PACKET_FIELD_DETAIL },
351 { "ack", 156, 4, 0, ack_names },
352};
353
354static const struct packet_field read_quadlet_response_fields[] = {
355 COMMON_RESPONSE_FIELDS,
356 { "data", 96, 32, PACKET_FIELD_TRANSACTION },
357 { "crc", 128, 32, PACKET_FIELD_DETAIL },
358 { "ack", 188, 4, 0, ack_names },
359};
360
361static const struct packet_field read_block_request_fields[] = {
362 COMMON_REQUEST_FIELDS,
363 { "data_length", 96, 16, PACKET_FIELD_TRANSACTION },
364 { "extended_tcode", 112, 16 },
365 { "crc", 128, 32, PACKET_FIELD_DETAIL },
366 { "ack", 188, 4, 0, ack_names },
367};
368
369static const struct packet_field block_response_fields[] = {
370 COMMON_RESPONSE_FIELDS,
371 { "data_length", 96, 16, PACKET_FIELD_DATA_LENGTH },
372 { "extended_tcode", 112, 16 },
373 { "crc", 128, 32, PACKET_FIELD_DETAIL },
374 { "data", 160, 0, PACKET_FIELD_TRANSACTION },
375 { "crc", -64, 32, PACKET_FIELD_DETAIL },
376 { "ack", -4, 4, 0, ack_names },
377};
378
379static const struct packet_field write_quadlet_request_fields[] = {
380 COMMON_REQUEST_FIELDS,
381 { "data", 96, 32, PACKET_FIELD_TRANSACTION },
382 { "ack", -4, 4, 0, ack_names },
383};
384
385static const struct packet_field block_request_fields[] = {
386 COMMON_REQUEST_FIELDS,
387 { "data_length", 96, 16, PACKET_FIELD_DATA_LENGTH | PACKET_FIELD_TRANSACTION },
388 { "extended_tcode", 112, 16, PACKET_FIELD_TRANSACTION },
389 { "crc", 128, 32, PACKET_FIELD_DETAIL },
390 { "data", 160, 0, PACKET_FIELD_TRANSACTION },
391 { "crc", -64, 32, PACKET_FIELD_DETAIL },
392 { "ack", -4, 4, 0, ack_names },
393};
394
395static const struct packet_field write_response_fields[] = {
396 COMMON_RESPONSE_FIELDS,
397 { "reserved", 64, 32, PACKET_FIELD_DETAIL },
398 { "ack", -4, 4, 0, ack_names },
399};
400
401static const struct packet_field iso_data_fields[] = {
402 { "data_length", 0, 16, PACKET_FIELD_DATA_LENGTH },
403 { "tag", 16, 2 },
404 { "channel", 18, 6 },
405 { "tcode", 24, 4, 0, tcode_names },
406 { "sy", 28, 4 },
407 { "crc", 32, 32, PACKET_FIELD_DETAIL },
408 { "data", 64, 0 },
409 { "crc", -64, 32, PACKET_FIELD_DETAIL },
410 { "ack", -4, 4, 0, ack_names },
411};
412
413static const struct packet_info packet_info[] = {
414 {
415 .name = "write_quadlet_request",
416 .type = PACKET_REQUEST,
417 .response_tcode = TCODE_WRITE_RESPONSE,
418 .fields = write_quadlet_request_fields,
419 .field_count = array_length(write_quadlet_request_fields)
420 },
421 {
422 .name = "write_block_request",
423 .type = PACKET_REQUEST,
424 .response_tcode = TCODE_WRITE_RESPONSE,
425 .fields = block_request_fields,
426 .field_count = array_length(block_request_fields)
427 },
428 {
429 .name = "write_response",
430 .type = PACKET_RESPONSE,
431 .fields = write_response_fields,
432 .field_count = array_length(write_response_fields)
433 },
434 {
435 .name = "reserved",
436 .type = PACKET_RESERVED,
437 },
438 {
439 .name = "read_quadlet_request",
440 .type = PACKET_REQUEST,
441 .response_tcode = TCODE_READ_QUADLET_RESPONSE,
442 .fields = read_quadlet_request_fields,
443 .field_count = array_length(read_quadlet_request_fields)
444 },
445 {
446 .name = "read_block_request",
447 .type = PACKET_REQUEST,
448 .response_tcode = TCODE_READ_BLOCK_RESPONSE,
449 .fields = read_block_request_fields,
450 .field_count = array_length(read_block_request_fields)
451 },
452 {
453 .name = "read_quadlet_response",
454 .type = PACKET_RESPONSE,
455 .fields = read_quadlet_response_fields,
456 .field_count = array_length(read_quadlet_response_fields)
457 },
458 {
459 .name = "read_block_response",
460 .type = PACKET_RESPONSE,
461 .fields = block_response_fields,
462 .field_count = array_length(block_response_fields)
463 },
464 {
465 .name = "cycle_start",
466 .type = PACKET_OTHER,
467 .fields = write_quadlet_request_fields,
468 .field_count = array_length(write_quadlet_request_fields)
469 },
470 {
471 .name = "lock_request",
472 .type = PACKET_REQUEST,
473 .fields = block_request_fields,
474 .field_count = array_length(block_request_fields)
475 },
476 {
477 .name = "iso_data",
478 .type = PACKET_OTHER,
479 .fields = iso_data_fields,
480 .field_count = array_length(iso_data_fields)
481 },
482 {
483 .name = "lock_response",
484 .type = PACKET_RESPONSE,
485 .fields = block_response_fields,
486 .field_count = array_length(block_response_fields)
487 },
488};
489
490static int
491handle_request_packet(uint32_t *data, size_t length)
492{
493 struct link_packet *p = (struct link_packet *) data;
494 struct subaction *sa, *prev;
495 struct link_transaction *t;
496
497 t = link_transaction_lookup(p->common.source, p->common.destination,
498 p->common.tlabel);
499 sa = subaction_create(data, length);
500 t->request = sa;
501
502 if (!list_empty(&t->request_list)) {
503 prev = list_tail(&t->request_list,
504 struct subaction, link);
505
506 if (!ACK_BUSY(prev->ack)) {
507 /*
508 * error, we should only see ack_busy_* before the
509 * ack_pending/ack_complete -- this is an ack_pending
510 * instead (ack_complete would have finished the
511 * transaction).
512 */
513 }
514
515 if (prev->packet.common.tcode != sa->packet.common.tcode ||
516 prev->packet.common.tlabel != sa->packet.common.tlabel) {
517 /* memcmp() ? */
518 /* error, these should match for retries. */
519 }
520 }
521
522 list_append(&t->request_list, &sa->link);
523
524 switch (sa->ack) {
525 case ACK_COMPLETE:
526 if (p->common.tcode != TCODE_WRITE_QUADLET_REQUEST &&
527 p->common.tcode != TCODE_WRITE_BLOCK_REQUEST)
528 /* error, unified transactions only allowed for write */;
529 list_remove(&t->link);
530 handle_transaction(t);
531 break;
532
533 case ACK_NO_ACK:
534 case ACK_DATA_ERROR:
535 case ACK_TYPE_ERROR:
536 list_remove(&t->link);
537 handle_transaction(t);
538 break;
539
540 case ACK_PENDING:
541 /* request subaction phase over, wait for response. */
542 break;
543
544 case ACK_BUSY_X:
545 case ACK_BUSY_A:
546 case ACK_BUSY_B:
547 /* ok, wait for retry. */
548 /* check that retry protocol is respected. */
549 break;
550 }
551
552 return 1;
553}
554
555static int
556handle_response_packet(uint32_t *data, size_t length)
557{
558 struct link_packet *p = (struct link_packet *) data;
559 struct subaction *sa, *prev;
560 struct link_transaction *t;
561
562 t = link_transaction_lookup(p->common.destination, p->common.source,
563 p->common.tlabel);
564 if (list_empty(&t->request_list)) {
565 /* unsolicited response */
566 }
567
568 sa = subaction_create(data, length);
569 t->response = sa;
570
571 if (!list_empty(&t->response_list)) {
572 prev = list_tail(&t->response_list, struct subaction, link);
573
574 if (!ACK_BUSY(prev->ack)) {
575 /*
576 * error, we should only see ack_busy_* before the
577 * ack_pending/ack_complete
578 */
579 }
580
581 if (prev->packet.common.tcode != sa->packet.common.tcode ||
582 prev->packet.common.tlabel != sa->packet.common.tlabel) {
583 /* use memcmp() instead? */
584 /* error, these should match for retries. */
585 }
586 } else {
587 prev = list_tail(&t->request_list, struct subaction, link);
588 if (prev->ack != ACK_PENDING) {
589 /*
590 * error, should not get response unless last request got
591 * ack_pending.
592 */
593 }
594
595 if (packet_info[prev->packet.common.tcode].response_tcode !=
596 sa->packet.common.tcode) {
597 /* error, tcode mismatch */
598 }
599 }
600
601 list_append(&t->response_list, &sa->link);
602
603 switch (sa->ack) {
604 case ACK_COMPLETE:
605 case ACK_NO_ACK:
606 case ACK_DATA_ERROR:
607 case ACK_TYPE_ERROR:
608 list_remove(&t->link);
609 handle_transaction(t);
610 /* transaction complete, remove t from pending list. */
611 break;
612
613 case ACK_PENDING:
614 /* error for responses. */
615 break;
616
617 case ACK_BUSY_X:
618 case ACK_BUSY_A:
619 case ACK_BUSY_B:
620 /* no problem, wait for next retry */
621 break;
622 }
623
624 return 1;
625}
626
627static int
628handle_packet(uint32_t *data, size_t length)
629{
630 if (length == 0) {
631 printf("bus reset\r\n");
632 clear_pending_transaction_list();
633 } else if (length > sizeof(struct phy_packet)) {
634 struct link_packet *p = (struct link_packet *) data;
635
636 switch (packet_info[p->common.tcode].type) {
637 case PACKET_REQUEST:
638 return handle_request_packet(data, length);
639
640 case PACKET_RESPONSE:
641 return handle_response_packet(data, length);
642
643 case PACKET_OTHER:
644 case PACKET_RESERVED:
645 return 0;
646 }
647 }
648
649 return 1;
650}
651
652static unsigned int
653get_bits(struct link_packet *packet, int offset, int width)
654{
655 uint32_t *data = (uint32_t *) packet;
656 uint32_t index, shift, mask;
657
658 index = offset / 32 + 1;
659 shift = 32 - (offset & 31) - width;
660 mask = width == 32 ? ~0 : (1 << width) - 1;
661
662 return (data[index] >> shift) & mask;
663}
664
665#if __BYTE_ORDER == __LITTLE_ENDIAN
666#define byte_index(i) ((i) ^ 3)
667#elif __BYTE_ORDER == __BIG_ENDIAN
668#define byte_index(i) (i)
669#else
670#error unsupported byte order.
671#endif
672
673static void
674dump_data(unsigned char *data, int length)
675{
676 int i, print_length;
677
678 if (length > 128)
679 print_length = 128;
680 else
681 print_length = length;
682
683 for (i = 0; i < print_length; i++)
684 printf("%s%02hhx",
685 (i % 4 == 0 && i != 0) ? " " : "",
686 data[byte_index(i)]);
687
688 if (print_length < length)
689 printf(" (%d more bytes)", length - print_length);
690}
691
692static void
693decode_link_packet(struct link_packet *packet, size_t length,
694 int include_flags, int exclude_flags)
695{
696 const struct packet_info *pi;
697 int data_length = 0;
698 int i;
699
700 pi = &packet_info[packet->common.tcode];
701
702 for (i = 0; i < pi->field_count; i++) {
703 const struct packet_field *f = &pi->fields[i];
704 int offset;
705
706 if (f->flags & exclude_flags)
707 continue;
708 if (include_flags && !(f->flags & include_flags))
709 continue;
710
711 if (f->offset < 0)
712 offset = length * 8 + f->offset - 32;
713 else
714 offset = f->offset;
715
716 if (f->value_names != NULL) {
717 uint32_t bits;
718
719 bits = get_bits(packet, offset, f->width);
720 printf("%s", f->value_names[bits]);
721 } else if (f->width == 0) {
722 printf("%s=[", f->name);
723 dump_data((unsigned char *) packet + (offset / 8 + 4), data_length);
724 printf("]");
725 } else {
726 unsigned long long bits;
727 int high_width, low_width;
728
729 if ((offset & ~31) != ((offset + f->width - 1) & ~31)) {
730 /* Bit field spans quadlet boundary. */
731 high_width = ((offset + 31) & ~31) - offset;
732 low_width = f->width - high_width;
733
734 bits = get_bits(packet, offset, high_width);
735 bits = (bits << low_width) |
736 get_bits(packet, offset + high_width, low_width);
737 } else {
738 bits = get_bits(packet, offset, f->width);
739 }
740
741 printf("%s=0x%0*llx", f->name, (f->width + 3) / 4, bits);
742
743 if (f->flags & PACKET_FIELD_DATA_LENGTH)
744 data_length = bits;
745 }
746
747 if (i < pi->field_count - 1)
748 printf(", ");
749 }
750}
751
752static void
753print_packet(uint32_t *data, size_t length)
754{
755 int i;
756
757 printf("%6u ", data[0]);
758
759 if (length == 4) {
760 printf("bus reset");
761 } else if (length < sizeof(struct phy_packet)) {
762 printf("short packet: ");
763 for (i = 1; i < length / 4; i++)
764 printf("%s%08x", i == 0 ? "[" : " ", data[i]);
765 printf("]");
766
767 } else if (length == sizeof(struct phy_packet) && data[1] == ~data[2]) {
768 struct phy_packet *pp = (struct phy_packet *) data;
769
770 /* phy packet are 3 quadlets: the 1 quadlet payload,
771 * the bitwise inverse of the payload and the snoop
772 * mode ack */
773
774 switch (pp->common.identifier) {
775 case PHY_PACKET_CONFIGURATION:
776 if (!pp->phy_config.set_root && !pp->phy_config.set_gap_count) {
777 printf("ext phy config: phy_id=%02x", pp->phy_config.root_id);
778 } else {
779 printf("phy config:");
780 if (pp->phy_config.set_root)
781 printf(" set_root_id=%02x", pp->phy_config.root_id);
782 if (pp->phy_config.set_gap_count)
783 printf(" set_gap_count=%d", pp->phy_config.gap_count);
784 }
785 break;
786
787 case PHY_PACKET_LINK_ON:
788 printf("link-on packet, phy_id=%02x", pp->link_on.phy_id);
789 break;
790
791 case PHY_PACKET_SELF_ID:
792 if (pp->self_id.extended) {
793 printf("extended self id: phy_id=%02x, seq=%d",
794 pp->ext_self_id.phy_id, pp->ext_self_id.sequence);
795 } else {
796 static const char * const speed_names[] = {
797 "S100", "S200", "S400", "BETA"
798 };
799 printf("self id: phy_id=%02x, link %s, gap_count=%d, speed=%s%s%s",
800 pp->self_id.phy_id,
801 (pp->self_id.link_active ? "active" : "not active"),
802 pp->self_id.gap_count,
803 speed_names[pp->self_id.phy_speed],
804 (pp->self_id.contender ? ", irm contender" : ""),
805 (pp->self_id.initiated_reset ? ", initiator" : ""));
806 }
807 break;
808 default:
809 printf("unknown phy packet: ");
810 for (i = 1; i < length / 4; i++)
811 printf("%s%08x", i == 0 ? "[" : " ", data[i]);
812 printf("]");
813 break;
814 }
815 } else {
816 struct link_packet *packet = (struct link_packet *) data;
817
818 decode_link_packet(packet, length, 0,
819 option_verbose ? 0 : PACKET_FIELD_DETAIL);
820 }
821
822 if (option_hex) {
823 printf(" [");
824 dump_data((unsigned char *) data + 4, length - 4);
825 printf("]");
826 }
827
828 printf("\r\n");
829}
830
831#define HIDE_CURSOR "\033[?25l"
832#define SHOW_CURSOR "\033[?25h"
833#define CLEAR "\033[H\033[2J"
834
835static void
836print_stats(uint32_t *data, size_t length)
837{
838 static int bus_reset_count, short_packet_count, phy_packet_count;
839 static int tcode_count[16];
840 static struct timeval last_update;
841 struct timeval now;
842 int i;
843
844 if (length == 0)
845 bus_reset_count++;
846 else if (length < sizeof(struct phy_packet))
847 short_packet_count++;
848 else if (length == sizeof(struct phy_packet) && data[1] == ~data[2])
849 phy_packet_count++;
850 else {
851 struct link_packet *packet = (struct link_packet *) data;
852 tcode_count[packet->common.tcode]++;
853 }
854
855 gettimeofday(&now, NULL);
856 if (now.tv_sec <= last_update.tv_sec &&
857 now.tv_usec < last_update.tv_usec + 500000)
858 return;
859
860 last_update = now;
861 printf(CLEAR HIDE_CURSOR
862 " bus resets : %8d\n"
863 " short packets : %8d\n"
864 " phy packets : %8d\n",
865 bus_reset_count, short_packet_count, phy_packet_count);
866
867 for (i = 0; i < array_length(packet_info); i++)
868 if (packet_info[i].type != PACKET_RESERVED)
869 printf(" %-24s: %8d\n", packet_info[i].name, tcode_count[i]);
870 printf(SHOW_CURSOR "\n");
871}
872
873static struct termios saved_attributes;
874
875static void
876reset_input_mode(void)
877{
878 tcsetattr(STDIN_FILENO, TCSANOW, &saved_attributes);
879}
880
881static void
882set_input_mode(void)
883{
884 struct termios tattr;
885
886 /* Make sure stdin is a terminal. */
887 if (!isatty(STDIN_FILENO)) {
888 fprintf(stderr, "Not a terminal.\n");
889 exit(EXIT_FAILURE);
890 }
891
892 /* Save the terminal attributes so we can restore them later. */
893 tcgetattr(STDIN_FILENO, &saved_attributes);
894 atexit(reset_input_mode);
895
896 /* Set the funny terminal modes. */
897 tcgetattr(STDIN_FILENO, &tattr);
898 tattr.c_lflag &= ~(ICANON|ECHO); /* Clear ICANON and ECHO. */
899 tattr.c_cc[VMIN] = 1;
900 tattr.c_cc[VTIME] = 0;
901 tcsetattr(STDIN_FILENO, TCSAFLUSH, &tattr);
902}
903
904int main(int argc, const char *argv[])
905{
906 uint32_t buf[128 * 1024];
907 uint32_t filter;
908 int length, retval, view;
909 int fd = -1;
910 FILE *output = NULL, *input = NULL;
911 poptContext con;
912 char c;
913 struct pollfd pollfds[2];
914
915 sys_sigint_handler = signal(SIGINT, sigint_handler);
916
917 con = poptGetContext(NULL, argc, argv, options, 0);
918 retval = poptGetNextOpt(con);
919 if (retval < -1) {
920 poptPrintUsage(con, stdout, 0);
921 return -1;
922 }
923
924 if (option_version) {
925 printf("dump tool for nosy sniffer, version %s\n", VERSION);
926 return 0;
927 }
928
929 if (__BYTE_ORDER != __LITTLE_ENDIAN)
930 fprintf(stderr, "warning: nosy has only been tested on little "
931 "endian machines\n");
932
933 if (option_input != NULL) {
934 input = fopen(option_input, "r");
935 if (input == NULL) {
936 fprintf(stderr, "Could not open %s, %m\n", option_input);
937 return -1;
938 }
939 } else {
940 fd = open(option_nosy_device, O_RDWR);
941 if (fd < 0) {
942 fprintf(stderr, "Could not open %s, %m\n", option_nosy_device);
943 return -1;
944 }
945 set_input_mode();
946 }
947
948 if (strcmp(option_view, "transaction") == 0)
949 view = VIEW_TRANSACTION;
950 else if (strcmp(option_view, "stats") == 0)
951 view = VIEW_STATS;
952 else
953 view = VIEW_PACKET;
954
955 if (option_output) {
956 output = fopen(option_output, "w");
957 if (output == NULL) {
958 fprintf(stderr, "Could not open %s, %m\n", option_output);
959 return -1;
960 }
961 }
962
963 setvbuf(stdout, NULL, _IOLBF, BUFSIZ);
964
965 filter = ~0;
966 if (!option_iso)
967 filter &= ~(1 << TCODE_STREAM_DATA);
968 if (!option_cycle_start)
969 filter &= ~(1 << TCODE_CYCLE_START);
970 if (view == VIEW_STATS)
971 filter = ~(1 << TCODE_CYCLE_START);
972
973 ioctl(fd, NOSY_IOC_FILTER, filter);
974
975 ioctl(fd, NOSY_IOC_START);
976
977 pollfds[0].fd = fd;
978 pollfds[0].events = POLLIN;
979 pollfds[1].fd = STDIN_FILENO;
980 pollfds[1].events = POLLIN;
981
982 while (run) {
983 if (input != NULL) {
984 if (fread(&length, sizeof length, 1, input) != 1)
985 return 0;
986 fread(buf, 1, length, input);
987 } else {
988 poll(pollfds, 2, -1);
989 if (pollfds[1].revents) {
990 read(STDIN_FILENO, &c, sizeof c);
991 switch (c) {
992 case 'q':
993 if (output != NULL)
994 fclose(output);
995 return 0;
996 }
997 }
998
999 if (pollfds[0].revents)
1000 length = read(fd, buf, sizeof buf);
1001 else
1002 continue;
1003 }
1004
1005 if (output != NULL) {
1006 fwrite(&length, sizeof length, 1, output);
1007 fwrite(buf, 1, length, output);
1008 }
1009
1010 switch (view) {
1011 case VIEW_TRANSACTION:
1012 handle_packet(buf, length);
1013 break;
1014 case VIEW_PACKET:
1015 print_packet(buf, length);
1016 break;
1017 case VIEW_STATS:
1018 print_stats(buf, length);
1019 break;
1020 }
1021 }
1022
1023 if (output != NULL)
1024 fclose(output);
1025
1026 close(fd);
1027
1028 poptFreeContext(con);
1029
1030 return 0;
1031}
diff --git a/tools/firewire/nosy-dump.h b/tools/firewire/nosy-dump.h
new file mode 100644
index 000000000000..3a4b5b33ba5d
--- /dev/null
+++ b/tools/firewire/nosy-dump.h
@@ -0,0 +1,173 @@
1#ifndef __nosy_dump_h__
2#define __nosy_dump_h__
3
4#define array_length(array) (sizeof(array) / sizeof(array[0]))
5
6#define ACK_NO_ACK 0x0
7#define ACK_DONE(a) ((a >> 2) == 0)
8#define ACK_BUSY(a) ((a >> 2) == 1)
9#define ACK_ERROR(a) ((a >> 2) == 3)
10
11#include <stdint.h>
12
13struct phy_packet {
14 uint32_t timestamp;
15 union {
16 struct {
17 uint32_t zero:24;
18 uint32_t phy_id:6;
19 uint32_t identifier:2;
20 } common, link_on;
21
22 struct {
23 uint32_t zero:16;
24 uint32_t gap_count:6;
25 uint32_t set_gap_count:1;
26 uint32_t set_root:1;
27 uint32_t root_id:6;
28 uint32_t identifier:2;
29 } phy_config;
30
31 struct {
32 uint32_t more_packets:1;
33 uint32_t initiated_reset:1;
34 uint32_t port2:2;
35 uint32_t port1:2;
36 uint32_t port0:2;
37 uint32_t power_class:3;
38 uint32_t contender:1;
39 uint32_t phy_delay:2;
40 uint32_t phy_speed:2;
41 uint32_t gap_count:6;
42 uint32_t link_active:1;
43 uint32_t extended:1;
44 uint32_t phy_id:6;
45 uint32_t identifier:2;
46 } self_id;
47
48 struct {
49 uint32_t more_packets:1;
50 uint32_t reserved1:1;
51 uint32_t porth:2;
52 uint32_t portg:2;
53 uint32_t portf:2;
54 uint32_t porte:2;
55 uint32_t portd:2;
56 uint32_t portc:2;
57 uint32_t portb:2;
58 uint32_t porta:2;
59 uint32_t reserved0:2;
60 uint32_t sequence:3;
61 uint32_t extended:1;
62 uint32_t phy_id:6;
63 uint32_t identifier:2;
64 } ext_self_id;
65 };
66 uint32_t inverted;
67 uint32_t ack;
68};
69
70#define TCODE_PHY_PACKET 0x10
71
72#define PHY_PACKET_CONFIGURATION 0x00
73#define PHY_PACKET_LINK_ON 0x01
74#define PHY_PACKET_SELF_ID 0x02
75
76struct link_packet {
77 uint32_t timestamp;
78 union {
79 struct {
80 uint32_t priority:4;
81 uint32_t tcode:4;
82 uint32_t rt:2;
83 uint32_t tlabel:6;
84 uint32_t destination:16;
85
86 uint32_t offset_high:16;
87 uint32_t source:16;
88
89 uint32_t offset_low;
90 } common;
91
92 struct {
93 uint32_t common[3];
94 uint32_t crc;
95 } read_quadlet;
96
97 struct {
98 uint32_t common[3];
99 uint32_t data;
100 uint32_t crc;
101 } read_quadlet_response;
102
103 struct {
104 uint32_t common[3];
105 uint32_t extended_tcode:16;
106 uint32_t data_length:16;
107 uint32_t crc;
108 } read_block;
109
110 struct {
111 uint32_t common[3];
112 uint32_t extended_tcode:16;
113 uint32_t data_length:16;
114 uint32_t crc;
115 uint32_t data[0];
116 /* crc and ack follows. */
117 } read_block_response;
118
119 struct {
120 uint32_t common[3];
121 uint32_t data;
122 uint32_t crc;
123 } write_quadlet;
124
125 struct {
126 uint32_t common[3];
127 uint32_t extended_tcode:16;
128 uint32_t data_length:16;
129 uint32_t crc;
130 uint32_t data[0];
131 /* crc and ack follows. */
132 } write_block;
133
134 struct {
135 uint32_t common[3];
136 uint32_t crc;
137 } write_response;
138
139 struct {
140 uint32_t common[3];
141 uint32_t data;
142 uint32_t crc;
143 } cycle_start;
144
145 struct {
146 uint32_t sy:4;
147 uint32_t tcode:4;
148 uint32_t channel:6;
149 uint32_t tag:2;
150 uint32_t data_length:16;
151
152 uint32_t crc;
153 } iso_data;
154 };
155};
156
157struct subaction {
158 uint32_t ack;
159 size_t length;
160 struct list link;
161 struct link_packet packet;
162};
163
164struct link_transaction {
165 int request_node, response_node, tlabel;
166 struct subaction *request, *response;
167 struct list request_list, response_list;
168 struct list link;
169};
170
171int decode_fcp(struct link_transaction *t);
172
173#endif /* __nosy_dump_h__ */
diff --git a/tools/perf/arch/arm/Makefile b/tools/perf/arch/arm/Makefile
new file mode 100644
index 000000000000..15130b50dfe3
--- /dev/null
+++ b/tools/perf/arch/arm/Makefile
@@ -0,0 +1,4 @@
1ifndef NO_DWARF
2PERF_HAVE_DWARF_REGS := 1
3LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o
4endif
diff --git a/tools/perf/arch/arm/util/dwarf-regs.c b/tools/perf/arch/arm/util/dwarf-regs.c
new file mode 100644
index 000000000000..fff6450c8c99
--- /dev/null
+++ b/tools/perf/arch/arm/util/dwarf-regs.c
@@ -0,0 +1,64 @@
1/*
2 * Mapping of DWARF debug register numbers into register names.
3 *
4 * Copyright (C) 2010 Will Deacon, ARM Ltd.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11#include <libio.h>
12#include <dwarf-regs.h>
13
14struct pt_regs_dwarfnum {
15 const char *name;
16 unsigned int dwarfnum;
17};
18
19#define STR(s) #s
20#define REG_DWARFNUM_NAME(r, num) {.name = r, .dwarfnum = num}
21#define GPR_DWARFNUM_NAME(num) \
22 {.name = STR(%r##num), .dwarfnum = num}
23#define REG_DWARFNUM_END {.name = NULL, .dwarfnum = 0}
24
25/*
26 * Reference:
27 * http://infocenter.arm.com/help/topic/com.arm.doc.ihi0040a/IHI0040A_aadwarf.pdf
28 */
29static const struct pt_regs_dwarfnum regdwarfnum_table[] = {
30 GPR_DWARFNUM_NAME(0),
31 GPR_DWARFNUM_NAME(1),
32 GPR_DWARFNUM_NAME(2),
33 GPR_DWARFNUM_NAME(3),
34 GPR_DWARFNUM_NAME(4),
35 GPR_DWARFNUM_NAME(5),
36 GPR_DWARFNUM_NAME(6),
37 GPR_DWARFNUM_NAME(7),
38 GPR_DWARFNUM_NAME(8),
39 GPR_DWARFNUM_NAME(9),
40 GPR_DWARFNUM_NAME(10),
41 REG_DWARFNUM_NAME("%fp", 11),
42 REG_DWARFNUM_NAME("%ip", 12),
43 REG_DWARFNUM_NAME("%sp", 13),
44 REG_DWARFNUM_NAME("%lr", 14),
45 REG_DWARFNUM_NAME("%pc", 15),
46 REG_DWARFNUM_END,
47};
48
49/**
50 * get_arch_regstr() - lookup register name from it's DWARF register number
51 * @n: the DWARF register number
52 *
53 * get_arch_regstr() returns the name of the register in struct
54 * regdwarfnum_table from it's DWARF register number. If the register is not
55 * found in the table, this returns NULL;
56 */
57const char *get_arch_regstr(unsigned int n)
58{
59 const struct pt_regs_dwarfnum *roff;
60 for (roff = regdwarfnum_table; roff->name != NULL; roff++)
61 if (roff->dwarfnum == n)
62 return roff->name;
63 return NULL;
64}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-08 21:17:24 -0500