ia64/linux-2.6.18-xen.hg

view scripts/kconfig/zconf.y @ 798:b02a90bf5bbc

ACPI: Backport missing part for T-State MSR support

Part of below kernel commit was missed while packporting T-State
support.

commit f79f06ab9f86d7203006d2ec8992ac80df36a34e
Author: Zhao Yakui <yakui.zhao@intel.com>
Date: Thu Nov 15 17:06:36 2007 +0800

ACPI: Enable MSR (FixedHW) support for T-States

Add throttling control via MSR when T-states uses
the FixHW Control Status registers.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

Signed-off-by: Wei Gang <gang.wei@intel.com>
author Keir Fraser <keir.fraser@citrix.com>
date Mon Mar 02 10:53:59 2009 +0000 (2009-03-02)
parents 831230e53067
children
line source
1 %{
2 /*
3 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
4 * Released under the terms of the GNU GPL v2.0.
5 */
7 #include <ctype.h>
8 #include <stdarg.h>
9 #include <stdio.h>
10 #include <stdlib.h>
11 #include <string.h>
12 #include <stdbool.h>
14 #define LKC_DIRECT_LINK
15 #include "lkc.h"
17 #include "zconf.hash.c"
19 #define printd(mask, fmt...) if (cdebug & (mask)) printf(fmt)
21 #define PRINTD 0x0001
22 #define DEBUG_PARSE 0x0002
24 int cdebug = PRINTD;
26 extern int zconflex(void);
27 static void zconfprint(const char *err, ...);
28 static void zconf_error(const char *err, ...);
29 static void zconferror(const char *err);
30 static bool zconf_endtoken(struct kconf_id *id, int starttoken, int endtoken);
32 struct symbol *symbol_hash[257];
34 static struct menu *current_menu, *current_entry;
36 #define YYDEBUG 0
37 #if YYDEBUG
38 #define YYERROR_VERBOSE
39 #endif
40 %}
41 %expect 26
43 %union
44 {
45 char *string;
46 struct file *file;
47 struct symbol *symbol;
48 struct expr *expr;
49 struct menu *menu;
50 struct kconf_id *id;
51 }
53 %token <id>T_MAINMENU
54 %token <id>T_MENU
55 %token <id>T_ENDMENU
56 %token <id>T_SOURCE
57 %token <id>T_CHOICE
58 %token <id>T_ENDCHOICE
59 %token <id>T_COMMENT
60 %token <id>T_CONFIG
61 %token <id>T_MENUCONFIG
62 %token <id>T_HELP
63 %token <string> T_HELPTEXT
64 %token <id>T_IF
65 %token <id>T_ENDIF
66 %token <id>T_DEPENDS
67 %token <id>T_REQUIRES
68 %token <id>T_OPTIONAL
69 %token <id>T_PROMPT
70 %token <id>T_TYPE
71 %token <id>T_DEFAULT
72 %token <id>T_SELECT
73 %token <id>T_RANGE
74 %token <id>T_OPTION
75 %token <id>T_ON
76 %token <string> T_WORD
77 %token <string> T_WORD_QUOTE
78 %token T_UNEQUAL
79 %token T_CLOSE_PAREN
80 %token T_OPEN_PAREN
81 %token T_EOL
83 %left T_OR
84 %left T_AND
85 %left T_EQUAL T_UNEQUAL
86 %nonassoc T_NOT
88 %type <string> prompt
89 %type <symbol> symbol
90 %type <expr> expr
91 %type <expr> if_expr
92 %type <id> end
93 %type <id> option_name
94 %type <menu> if_entry menu_entry choice_entry
95 %type <string> symbol_option_arg
97 %destructor {
98 fprintf(stderr, "%s:%d: missing end statement for this entry\n",
99 $$->file->name, $$->lineno);
100 if (current_menu == $$)
101 menu_end_menu();
102 } if_entry menu_entry choice_entry
104 %%
105 input: stmt_list;
107 stmt_list:
108 /* empty */
109 | stmt_list common_stmt
110 | stmt_list choice_stmt
111 | stmt_list menu_stmt
112 | stmt_list T_MAINMENU prompt nl
113 | stmt_list end { zconf_error("unexpected end statement"); }
114 | stmt_list T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); }
115 | stmt_list option_name error T_EOL
116 {
117 zconf_error("unexpected option \"%s\"", kconf_id_strings + $2->name);
118 }
119 | stmt_list error T_EOL { zconf_error("invalid statement"); }
120 ;
122 option_name:
123 T_DEPENDS | T_PROMPT | T_TYPE | T_SELECT | T_OPTIONAL | T_RANGE | T_DEFAULT
124 ;
126 common_stmt:
127 T_EOL
128 | if_stmt
129 | comment_stmt
130 | config_stmt
131 | menuconfig_stmt
132 | source_stmt
133 ;
135 option_error:
136 T_WORD error T_EOL { zconf_error("unknown option \"%s\"", $1); }
137 | error T_EOL { zconf_error("invalid option"); }
138 ;
141 /* config/menuconfig entry */
143 config_entry_start: T_CONFIG T_WORD T_EOL
144 {
145 struct symbol *sym = sym_lookup($2, 0);
146 sym->flags |= SYMBOL_OPTIONAL;
147 menu_add_entry(sym);
148 printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2);
149 };
151 config_stmt: config_entry_start config_option_list
152 {
153 menu_end_entry();
154 printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
155 };
157 menuconfig_entry_start: T_MENUCONFIG T_WORD T_EOL
158 {
159 struct symbol *sym = sym_lookup($2, 0);
160 sym->flags |= SYMBOL_OPTIONAL;
161 menu_add_entry(sym);
162 printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2);
163 };
165 menuconfig_stmt: menuconfig_entry_start config_option_list
166 {
167 if (current_entry->prompt)
168 current_entry->prompt->type = P_MENU;
169 else
170 zconfprint("warning: menuconfig statement without prompt");
171 menu_end_entry();
172 printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
173 };
175 config_option_list:
176 /* empty */
177 | config_option_list config_option
178 | config_option_list symbol_option
179 | config_option_list depends
180 | config_option_list help
181 | config_option_list option_error
182 | config_option_list T_EOL
183 ;
185 config_option: T_TYPE prompt_stmt_opt T_EOL
186 {
187 menu_set_type($1->stype);
188 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
189 zconf_curname(), zconf_lineno(),
190 $1->stype);
191 };
193 config_option: T_PROMPT prompt if_expr T_EOL
194 {
195 menu_add_prompt(P_PROMPT, $2, $3);
196 printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
197 };
199 config_option: T_DEFAULT expr if_expr T_EOL
200 {
201 menu_add_expr(P_DEFAULT, $2, $3);
202 if ($1->stype != S_UNKNOWN)
203 menu_set_type($1->stype);
204 printd(DEBUG_PARSE, "%s:%d:default(%u)\n",
205 zconf_curname(), zconf_lineno(),
206 $1->stype);
207 };
209 config_option: T_SELECT T_WORD if_expr T_EOL
210 {
211 menu_add_symbol(P_SELECT, sym_lookup($2, 0), $3);
212 printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());
213 };
215 config_option: T_RANGE symbol symbol if_expr T_EOL
216 {
217 menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,$2, $3), $4);
218 printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());
219 };
221 symbol_option: T_OPTION symbol_option_list T_EOL
222 ;
224 symbol_option_list:
225 /* empty */
226 | symbol_option_list T_WORD symbol_option_arg
227 {
228 struct kconf_id *id = kconf_id_lookup($2, strlen($2));
229 if (id && id->flags & TF_OPTION)
230 menu_add_option(id->token, $3);
231 else
232 zconfprint("warning: ignoring unknown option %s", $2);
233 free($2);
234 };
236 symbol_option_arg:
237 /* empty */ { $$ = NULL; }
238 | T_EQUAL prompt { $$ = $2; }
239 ;
241 /* choice entry */
243 choice: T_CHOICE T_EOL
244 {
245 struct symbol *sym = sym_lookup(NULL, 0);
246 sym->flags |= SYMBOL_CHOICE;
247 menu_add_entry(sym);
248 menu_add_expr(P_CHOICE, NULL, NULL);
249 printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
250 };
252 choice_entry: choice choice_option_list
253 {
254 $$ = menu_add_menu();
255 };
257 choice_end: end
258 {
259 if (zconf_endtoken($1, T_CHOICE, T_ENDCHOICE)) {
260 menu_end_menu();
261 printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno());
262 }
263 };
265 choice_stmt: choice_entry choice_block choice_end
266 ;
268 choice_option_list:
269 /* empty */
270 | choice_option_list choice_option
271 | choice_option_list depends
272 | choice_option_list help
273 | choice_option_list T_EOL
274 | choice_option_list option_error
275 ;
277 choice_option: T_PROMPT prompt if_expr T_EOL
278 {
279 menu_add_prompt(P_PROMPT, $2, $3);
280 printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
281 };
283 choice_option: T_TYPE prompt_stmt_opt T_EOL
284 {
285 if ($1->stype == S_BOOLEAN || $1->stype == S_TRISTATE) {
286 menu_set_type($1->stype);
287 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
288 zconf_curname(), zconf_lineno(),
289 $1->stype);
290 } else
291 YYERROR;
292 };
294 choice_option: T_OPTIONAL T_EOL
295 {
296 current_entry->sym->flags |= SYMBOL_OPTIONAL;
297 printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
298 };
300 choice_option: T_DEFAULT T_WORD if_expr T_EOL
301 {
302 if ($1->stype == S_UNKNOWN) {
303 menu_add_symbol(P_DEFAULT, sym_lookup($2, 0), $3);
304 printd(DEBUG_PARSE, "%s:%d:default\n",
305 zconf_curname(), zconf_lineno());
306 } else
307 YYERROR;
308 };
310 choice_block:
311 /* empty */
312 | choice_block common_stmt
313 ;
315 /* if entry */
317 if_entry: T_IF expr nl
318 {
319 printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
320 menu_add_entry(NULL);
321 menu_add_dep($2);
322 $$ = menu_add_menu();
323 };
325 if_end: end
326 {
327 if (zconf_endtoken($1, T_IF, T_ENDIF)) {
328 menu_end_menu();
329 printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
330 }
331 };
333 if_stmt: if_entry if_block if_end
334 ;
336 if_block:
337 /* empty */
338 | if_block common_stmt
339 | if_block menu_stmt
340 | if_block choice_stmt
341 ;
343 /* menu entry */
345 menu: T_MENU prompt T_EOL
346 {
347 menu_add_entry(NULL);
348 menu_add_prompt(P_MENU, $2, NULL);
349 printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
350 };
352 menu_entry: menu depends_list
353 {
354 $$ = menu_add_menu();
355 };
357 menu_end: end
358 {
359 if (zconf_endtoken($1, T_MENU, T_ENDMENU)) {
360 menu_end_menu();
361 printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());
362 }
363 };
365 menu_stmt: menu_entry menu_block menu_end
366 ;
368 menu_block:
369 /* empty */
370 | menu_block common_stmt
371 | menu_block menu_stmt
372 | menu_block choice_stmt
373 ;
375 source_stmt: T_SOURCE prompt T_EOL
376 {
377 printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2);
378 zconf_nextfile($2);
379 };
381 /* comment entry */
383 comment: T_COMMENT prompt T_EOL
384 {
385 menu_add_entry(NULL);
386 menu_add_prompt(P_COMMENT, $2, NULL);
387 printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());
388 };
390 comment_stmt: comment depends_list
391 {
392 menu_end_entry();
393 };
395 /* help option */
397 help_start: T_HELP T_EOL
398 {
399 printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno());
400 zconf_starthelp();
401 };
403 help: help_start T_HELPTEXT
404 {
405 current_entry->sym->help = $2;
406 };
408 /* depends option */
410 depends_list:
411 /* empty */
412 | depends_list depends
413 | depends_list T_EOL
414 | depends_list option_error
415 ;
417 depends: T_DEPENDS T_ON expr T_EOL
418 {
419 menu_add_dep($3);
420 printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
421 }
422 | T_DEPENDS expr T_EOL
423 {
424 menu_add_dep($2);
425 printd(DEBUG_PARSE, "%s:%d:depends\n", zconf_curname(), zconf_lineno());
426 }
427 | T_REQUIRES expr T_EOL
428 {
429 menu_add_dep($2);
430 printd(DEBUG_PARSE, "%s:%d:requires\n", zconf_curname(), zconf_lineno());
431 };
433 /* prompt statement */
435 prompt_stmt_opt:
436 /* empty */
437 | prompt if_expr
438 {
439 menu_add_prompt(P_PROMPT, $1, $2);
440 };
442 prompt: T_WORD
443 | T_WORD_QUOTE
444 ;
446 end: T_ENDMENU T_EOL { $$ = $1; }
447 | T_ENDCHOICE T_EOL { $$ = $1; }
448 | T_ENDIF T_EOL { $$ = $1; }
449 ;
451 nl:
452 T_EOL
453 | nl T_EOL
454 ;
456 if_expr: /* empty */ { $$ = NULL; }
457 | T_IF expr { $$ = $2; }
458 ;
460 expr: symbol { $$ = expr_alloc_symbol($1); }
461 | symbol T_EQUAL symbol { $$ = expr_alloc_comp(E_EQUAL, $1, $3); }
462 | symbol T_UNEQUAL symbol { $$ = expr_alloc_comp(E_UNEQUAL, $1, $3); }
463 | T_OPEN_PAREN expr T_CLOSE_PAREN { $$ = $2; }
464 | T_NOT expr { $$ = expr_alloc_one(E_NOT, $2); }
465 | expr T_OR expr { $$ = expr_alloc_two(E_OR, $1, $3); }
466 | expr T_AND expr { $$ = expr_alloc_two(E_AND, $1, $3); }
467 ;
469 symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); }
470 | T_WORD_QUOTE { $$ = sym_lookup($1, 1); free($1); }
471 ;
473 %%
475 void conf_parse(const char *name)
476 {
477 struct symbol *sym;
478 int i;
480 zconf_initscan(name);
482 sym_init();
483 menu_init();
484 modules_sym = sym_lookup(NULL, 0);
485 modules_sym->type = S_BOOLEAN;
486 modules_sym->flags |= SYMBOL_AUTO;
487 rootmenu.prompt = menu_add_prompt(P_MENU, "Linux Kernel Configuration", NULL);
489 #if YYDEBUG
490 if (getenv("ZCONF_DEBUG"))
491 zconfdebug = 1;
492 #endif
493 zconfparse();
494 if (zconfnerrs)
495 exit(1);
496 if (!modules_sym->prop) {
497 struct property *prop;
499 prop = prop_alloc(P_DEFAULT, modules_sym);
500 prop->expr = expr_alloc_symbol(sym_lookup("MODULES", 0));
501 }
502 menu_finalize(&rootmenu);
503 for_all_symbols(i, sym) {
504 sym_check_deps(sym);
505 }
507 sym_change_count = 1;
508 }
510 const char *zconf_tokenname(int token)
511 {
512 switch (token) {
513 case T_MENU: return "menu";
514 case T_ENDMENU: return "endmenu";
515 case T_CHOICE: return "choice";
516 case T_ENDCHOICE: return "endchoice";
517 case T_IF: return "if";
518 case T_ENDIF: return "endif";
519 case T_DEPENDS: return "depends";
520 }
521 return "<token>";
522 }
524 static bool zconf_endtoken(struct kconf_id *id, int starttoken, int endtoken)
525 {
526 if (id->token != endtoken) {
527 zconf_error("unexpected '%s' within %s block",
528 kconf_id_strings + id->name, zconf_tokenname(starttoken));
529 zconfnerrs++;
530 return false;
531 }
532 if (current_menu->file != current_file) {
533 zconf_error("'%s' in different file than '%s'",
534 kconf_id_strings + id->name, zconf_tokenname(starttoken));
535 fprintf(stderr, "%s:%d: location of the '%s'\n",
536 current_menu->file->name, current_menu->lineno,
537 zconf_tokenname(starttoken));
538 zconfnerrs++;
539 return false;
540 }
541 return true;
542 }
544 static void zconfprint(const char *err, ...)
545 {
546 va_list ap;
548 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
549 va_start(ap, err);
550 vfprintf(stderr, err, ap);
551 va_end(ap);
552 fprintf(stderr, "\n");
553 }
555 static void zconf_error(const char *err, ...)
556 {
557 va_list ap;
559 zconfnerrs++;
560 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
561 va_start(ap, err);
562 vfprintf(stderr, err, ap);
563 va_end(ap);
564 fprintf(stderr, "\n");
565 }
567 static void zconferror(const char *err)
568 {
569 #if YYDEBUG
570 fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
571 #endif
572 }
574 void print_quoted_string(FILE *out, const char *str)
575 {
576 const char *p;
577 int len;
579 putc('"', out);
580 while ((p = strchr(str, '"'))) {
581 len = p - str;
582 if (len)
583 fprintf(out, "%.*s", len, str);
584 fputs("\\\"", out);
585 str = p + 1;
586 }
587 fputs(str, out);
588 putc('"', out);
589 }
591 void print_symbol(FILE *out, struct menu *menu)
592 {
593 struct symbol *sym = menu->sym;
594 struct property *prop;
596 if (sym_is_choice(sym))
597 fprintf(out, "choice\n");
598 else
599 fprintf(out, "config %s\n", sym->name);
600 switch (sym->type) {
601 case S_BOOLEAN:
602 fputs(" boolean\n", out);
603 break;
604 case S_TRISTATE:
605 fputs(" tristate\n", out);
606 break;
607 case S_STRING:
608 fputs(" string\n", out);
609 break;
610 case S_INT:
611 fputs(" integer\n", out);
612 break;
613 case S_HEX:
614 fputs(" hex\n", out);
615 break;
616 default:
617 fputs(" ???\n", out);
618 break;
619 }
620 for (prop = sym->prop; prop; prop = prop->next) {
621 if (prop->menu != menu)
622 continue;
623 switch (prop->type) {
624 case P_PROMPT:
625 fputs(" prompt ", out);
626 print_quoted_string(out, prop->text);
627 if (!expr_is_yes(prop->visible.expr)) {
628 fputs(" if ", out);
629 expr_fprint(prop->visible.expr, out);
630 }
631 fputc('\n', out);
632 break;
633 case P_DEFAULT:
634 fputs( " default ", out);
635 expr_fprint(prop->expr, out);
636 if (!expr_is_yes(prop->visible.expr)) {
637 fputs(" if ", out);
638 expr_fprint(prop->visible.expr, out);
639 }
640 fputc('\n', out);
641 break;
642 case P_CHOICE:
643 fputs(" #choice value\n", out);
644 break;
645 default:
646 fprintf(out, " unknown prop %d!\n", prop->type);
647 break;
648 }
649 }
650 if (sym->help) {
651 int len = strlen(sym->help);
652 while (sym->help[--len] == '\n')
653 sym->help[len] = 0;
654 fprintf(out, " help\n%s\n", sym->help);
655 }
656 fputc('\n', out);
657 }
659 void zconfdump(FILE *out)
660 {
661 struct property *prop;
662 struct symbol *sym;
663 struct menu *menu;
665 menu = rootmenu.list;
666 while (menu) {
667 if ((sym = menu->sym))
668 print_symbol(out, menu);
669 else if ((prop = menu->prompt)) {
670 switch (prop->type) {
671 case P_COMMENT:
672 fputs("\ncomment ", out);
673 print_quoted_string(out, prop->text);
674 fputs("\n", out);
675 break;
676 case P_MENU:
677 fputs("\nmenu ", out);
678 print_quoted_string(out, prop->text);
679 fputs("\n", out);
680 break;
681 default:
682 ;
683 }
684 if (!expr_is_yes(prop->visible.expr)) {
685 fputs(" depends ", out);
686 expr_fprint(prop->visible.expr, out);
687 fputc('\n', out);
688 }
689 fputs("\n", out);
690 }
692 if (menu->list)
693 menu = menu->list;
694 else if (menu->next)
695 menu = menu->next;
696 else while ((menu = menu->parent)) {
697 if (menu->prompt && menu->prompt->type == P_MENU)
698 fputs("\nendmenu\n", out);
699 if (menu->next) {
700 menu = menu->next;
701 break;
702 }
703 }
704 }
705 }
707 #include "lex.zconf.c"
708 #include "util.c"
709 #include "confdata.c"
710 #include "expr.c"
711 #include "symbol.c"
712 #include "menu.c"