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[people/ms/u-boot.git] / arch / x86 / cpu / interrupts.c
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2262cfee 1/*
dbf7115a
GR		 2 * (C) Copyright 2008-2011
3 * Graeme Russ, <graeme.russ@gmail.com>
564a9984 4 *
2262cfee 5 * (C) Copyright 2002
fa82f871 6 * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
2262cfee 7 *
433ff2bd
GR		 8 * Portions of this file are derived from the Linux kernel source
9 * Copyright (C) 1991, 1992 Linus Torvalds
10 *
1a459660 11 * SPDX-License-Identifier: GPL-2.0+
2262cfee
WD		 12 */
13
14#include <common.h>
095593c0
SR		 15#include <asm/cache.h>
16#include <asm/control_regs.h>
9933d609 17#include <asm/interrupt.h>
ca56a4ce 18#include <asm/io.h>
0c24c9cc 19#include <asm/processor-flags.h>
717979fd 20#include <linux/compiler.h>
7c71034d
VB		 21#include <asm/msr.h>
22#include <asm/u-boot-x86.h>
2262cfee 23
7282d834
SG		 24DECLARE_GLOBAL_DATA_PTR;
25
564a9984
GR		 26#define DECLARE_INTERRUPT(x) \
27 ".globl irq_"#x"\n" \
0fc1b49e
GR		 28 ".hidden irq_"#x"\n" \
29 ".type irq_"#x", @function\n" \
564a9984 30 "irq_"#x":\n" \
564a9984
GR		 31 "pushl $"#x"\n" \
32 "jmp irq_common_entry\n"
2262cfee 33
7228efa3 34void dump_regs(struct irq_regs *regs)
433ff2bd
GR		 35{
36 unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L;
37 unsigned long d0, d1, d2, d3, d6, d7;
ca56a4ce 38 unsigned long sp;
433ff2bd
GR		 39
40 printf("EIP: %04x:[<%08lx>] EFLAGS: %08lx\n",
41 (u16)regs->xcs, regs->eip, regs->eflags);
42
43 printf("EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
44 regs->eax, regs->ebx, regs->ecx, regs->edx);
45 printf("ESI: %08lx EDI: %08lx EBP: %08lx ESP: %08lx\n",
46 regs->esi, regs->edi, regs->ebp, regs->esp);
47 printf(" DS: %04x ES: %04x FS: %04x GS: %04x SS: %04x\n",
717979fd
GR		 48 (u16)regs->xds, (u16)regs->xes, (u16)regs->xfs,
49 (u16)regs->xgs, (u16)regs->xss);
433ff2bd
GR		 50
51 cr0 = read_cr0();
52 cr2 = read_cr2();
53 cr3 = read_cr3();
54 cr4 = read_cr4();
55
56 printf("CR0: %08lx CR2: %08lx CR3: %08lx CR4: %08lx\n",
57 cr0, cr2, cr3, cr4);
58
59 d0 = get_debugreg(0);
60 d1 = get_debugreg(1);
61 d2 = get_debugreg(2);
62 d3 = get_debugreg(3);
63
64 printf("DR0: %08lx DR1: %08lx DR2: %08lx DR3: %08lx\n",
65 d0, d1, d2, d3);
66
67 d6 = get_debugreg(6);
68 d7 = get_debugreg(7);
69 printf("DR6: %08lx DR7: %08lx\n",
70 d6, d7);
ca56a4ce
GR		 71
72 printf("Stack:\n");
73 sp = regs->esp;
74
75 sp += 64;
76
77 while (sp > (regs->esp - 16)) {
78 if (sp == regs->esp)
79 printf("--->");
80 else
81 printf(" ");
82 printf("0x%8.8lx : 0x%8.8lx\n", sp, (ulong)readl(sp));
83 sp -= 4;
84 }
433ff2bd
GR		 85}
86
2262cfee
WD		 87struct idt_entry {
88 u16 base_low;
89 u16 selector;
90 u8 res;
91 u8 access;
92 u16 base_high;
717979fd 93} __packed;
2262cfee 94
564a9984
GR		 95struct desc_ptr {
96 unsigned short size;
97 unsigned long address;
98 unsigned short segment;
717979fd 99} __packed;
2262cfee 100
58c7a675 101struct idt_entry idt[256] __aligned(16);
2262cfee 102
564a9984 103struct desc_ptr idt_ptr;
2262cfee 104
564a9984
GR		 105static inline void load_idt(const struct desc_ptr *dtr)
106{
717979fd 107 asm volatile("cs lidt %0" : : "m" (*dtr));
564a9984 108}
2262cfee 109
abf0cd3d 110void set_vector(u8 intnum, void *routine)
2262cfee 111{
1c409bc7
GR		 112 idt[intnum].base_high = (u16)((u32)(routine) >> 16);
113 idt[intnum].base_low = (u16)((u32)(routine) & 0xffff);
2262cfee
WD		 114}
115
717979fd
GR		 116/*
117 * Ideally these would be defined static to avoid a checkpatch warning, but
118 * the compiler cannot see them in the inline asm and complains that they
119 * aren't defined
120 */
564a9984
GR		 121void irq_0(void);
122void irq_1(void);
2262cfee 123
abf0cd3d 124int cpu_init_interrupts(void)
2262cfee
WD		 125{
126 int i;
8bde7f77 127
564a9984
GR		 128 int irq_entry_size = irq_1 - irq_0;
129 void *irq_entry = (void *)irq_0;
130
2262cfee
WD		 131 /* Just in case... */
132 disable_interrupts();
8bde7f77 133
2262cfee 134 /* Setup the IDT */
717979fd 135 for (i = 0; i < 256; i++) {
2262cfee 136 idt[i].access = 0x8e;
8bde7f77
WD		 137 idt[i].res = 0;
138 idt[i].selector = 0x10;
564a9984
GR		 139 set_vector(i, irq_entry);
140 irq_entry += irq_entry_size;
8bde7f77
WD		 141 }
142
564a9984
GR		 143 idt_ptr.size = 256 * 8;
144 idt_ptr.address = (unsigned long) idt;
145 idt_ptr.segment = 0x18;
146
147 load_idt(&idt_ptr);
8bde7f77 148
2262cfee 149 /* It is now safe to enable interrupts */
8bde7f77
WD		 150 enable_interrupts();
151
2262cfee
WD		 152 return 0;
153}
154
564a9984
GR		 155void __do_irq(int irq)
156{
157 printf("Unhandled IRQ : %d\n", irq);
158}
159void do_irq(int irq) __attribute__((weak, alias("__do_irq")));
160
2262cfee
WD		 161void enable_interrupts(void)
162{
163 asm("sti\n");
164}
165
166int disable_interrupts(void)
167{
168 long flags;
8bde7f77 169
2262cfee 170 asm volatile ("pushfl ; popl %0 ; cli\n" : "=g" (flags) : );
8bde7f77 171
717979fd 172 return flags & X86_EFLAGS_IF;
2262cfee 173}
564a9984
GR		 174
175/* IRQ Low-Level Service Routine */
7228efa3 176void irq_llsr(struct irq_regs *regs)
564a9984
GR		 177{
178 /*
179 * For detailed description of each exception, refer to:
fa82f871 180 * Intel® 64 and IA-32 Architectures Software Developer's Manual
564a9984
GR		 181 * Volume 1: Basic Architecture
182 * Order Number: 253665-029US, November 2008
183 * Table 6-1. Exceptions and Interrupts
184 */
7228efa3 185 switch (regs->irq_id) {
564a9984 186 case 0x00:
433ff2bd
GR		 187 printf("Divide Error (Division by zero)\n");
188 dump_regs(regs);
6d7404c4 189 hang();
564a9984
GR		 190 break;
191 case 0x01:
433ff2bd
GR		 192 printf("Debug Interrupt (Single step)\n");
193 dump_regs(regs);
564a9984
GR		 194 break;
195 case 0x02:
433ff2bd
GR		 196 printf("NMI Interrupt\n");
197 dump_regs(regs);
564a9984
GR		 198 break;
199 case 0x03:
433ff2bd
GR		 200 printf("Breakpoint\n");
201 dump_regs(regs);
564a9984
GR		 202 break;
203 case 0x04:
433ff2bd
GR		 204 printf("Overflow\n");
205 dump_regs(regs);
6d7404c4 206 hang();
564a9984
GR		 207 break;
208 case 0x05:
433ff2bd
GR		 209 printf("BOUND Range Exceeded\n");
210 dump_regs(regs);
6d7404c4 211 hang();
564a9984
GR		 212 break;
213 case 0x06:
433ff2bd
GR		 214 printf("Invalid Opcode (UnDefined Opcode)\n");
215 dump_regs(regs);
6d7404c4 216 hang();
564a9984
GR		 217 break;
218 case 0x07:
433ff2bd
GR		 219 printf("Device Not Available (No Math Coprocessor)\n");
220 dump_regs(regs);
6d7404c4 221 hang();
564a9984
GR		 222 break;
223 case 0x08:
433ff2bd
GR		 224 printf("Double fault\n");
225 dump_regs(regs);
6d7404c4 226 hang();
564a9984
GR		 227 break;
228 case 0x09:
433ff2bd
GR		 229 printf("Co-processor segment overrun\n");
230 dump_regs(regs);
6d7404c4 231 hang();
564a9984
GR		 232 break;
233 case 0x0a:
433ff2bd
GR		 234 printf("Invalid TSS\n");
235 dump_regs(regs);
564a9984
GR		 236 break;
237 case 0x0b:
433ff2bd
GR		 238 printf("Segment Not Present\n");
239 dump_regs(regs);
6d7404c4 240 hang();
564a9984
GR		 241 break;
242 case 0x0c:
433ff2bd
GR		 243 printf("Stack Segment Fault\n");
244 dump_regs(regs);
6d7404c4 245 hang();
564a9984
GR		 246 break;
247 case 0x0d:
433ff2bd
GR		 248 printf("General Protection\n");
249 dump_regs(regs);
564a9984
GR		 250 break;
251 case 0x0e:
433ff2bd
GR		 252 printf("Page fault\n");
253 dump_regs(regs);
6d7404c4 254 hang();
564a9984
GR		 255 break;
256 case 0x0f:
433ff2bd
GR		 257 printf("Floating-Point Error (Math Fault)\n");
258 dump_regs(regs);
564a9984
GR		 259 break;
260 case 0x10:
433ff2bd
GR		 261 printf("Alignment check\n");
262 dump_regs(regs);
564a9984
GR		 263 break;
264 case 0x11:
433ff2bd
GR		 265 printf("Machine Check\n");
266 dump_regs(regs);
564a9984
GR		 267 break;
268 case 0x12:
433ff2bd
GR		 269 printf("SIMD Floating-Point Exception\n");
270 dump_regs(regs);
564a9984
GR		 271 break;
272 case 0x13:
273 case 0x14:
274 case 0x15:
275 case 0x16:
276 case 0x17:
277 case 0x18:
278 case 0x19:
279 case 0x1a:
280 case 0x1b:
281 case 0x1c:
282 case 0x1d:
283 case 0x1e:
284 case 0x1f:
433ff2bd
GR		 285 printf("Reserved Exception\n");
286 dump_regs(regs);
564a9984
GR		 287 break;
288
289 default:
290 /* Hardware or User IRQ */
7228efa3 291 do_irq(regs->irq_id);
564a9984
GR		 292 }
293}
294
295/*
296 * OK - This looks really horrible, but it serves a purpose - It helps create
297 * fully relocatable code.
298 * - The call to irq_llsr will be a relative jump
299 * - The IRQ entries will be guaranteed to be in order
433ff2bd
GR		 300 * Interrupt entries are now very small (a push and a jump) but they are
301 * now slower (all registers pushed on stack which provides complete
302 * crash dumps in the low level handlers
7228efa3
GR		 303 *
304 * Interrupt Entry Point:
305 * - Interrupt has caused eflags, CS and EIP to be pushed
306 * - Interrupt Vector Handler has pushed orig_eax
307 * - pt_regs.esp needs to be adjusted by 40 bytes:
308 * 12 bytes pushed by CPU (EFLAGSF, CS, EIP)
309 * 4 bytes pushed by vector handler (irq_id)
310 * 24 bytes pushed before SP (SS, GS, FS, ES, DS, EAX)
311 * NOTE: Only longs are pushed on/popped off the stack!
564a9984
GR		 312 */
313asm(".globl irq_common_entry\n" \
0fc1b49e
GR		 314 ".hidden irq_common_entry\n" \
315 ".type irq_common_entry, @function\n" \
564a9984 316 "irq_common_entry:\n" \
433ff2bd 317 "cld\n" \
7228efa3 318 "pushl %ss\n" \
433ff2bd
GR		 319 "pushl %gs\n" \
320 "pushl %fs\n" \
321 "pushl %es\n" \
322 "pushl %ds\n" \
323 "pushl %eax\n" \
7228efa3
GR		 324 "movl %esp, %eax\n" \
325 "addl $40, %eax\n" \
326 "pushl %eax\n" \
433ff2bd
GR		 327 "pushl %ebp\n" \
328 "pushl %edi\n" \
329 "pushl %esi\n" \
330 "pushl %edx\n" \
331 "pushl %ecx\n" \
332 "pushl %ebx\n" \
333 "mov %esp, %eax\n" \
564a9984 334 "call irq_llsr\n" \
433ff2bd
GR		 335 "popl %ebx\n" \
336 "popl %ecx\n" \
337 "popl %edx\n" \
338 "popl %esi\n" \
339 "popl %edi\n" \
340 "popl %ebp\n" \
341 "popl %eax\n" \
7228efa3 342 "popl %eax\n" \
433ff2bd
GR		 343 "popl %ds\n" \
344 "popl %es\n" \
345 "popl %fs\n" \
346 "popl %gs\n" \
7228efa3 347 "popl %ss\n" \
433ff2bd 348 "add $4, %esp\n" \
564a9984
GR		 349 "iret\n" \
350 DECLARE_INTERRUPT(0) \
351 DECLARE_INTERRUPT(1) \
352 DECLARE_INTERRUPT(2) \
353 DECLARE_INTERRUPT(3) \
354 DECLARE_INTERRUPT(4) \
355 DECLARE_INTERRUPT(5) \
356 DECLARE_INTERRUPT(6) \
357 DECLARE_INTERRUPT(7) \
358 DECLARE_INTERRUPT(8) \
359 DECLARE_INTERRUPT(9) \
360 DECLARE_INTERRUPT(10) \
361 DECLARE_INTERRUPT(11) \
362 DECLARE_INTERRUPT(12) \
363 DECLARE_INTERRUPT(13) \
364 DECLARE_INTERRUPT(14) \
365 DECLARE_INTERRUPT(15) \
366 DECLARE_INTERRUPT(16) \
367 DECLARE_INTERRUPT(17) \
368 DECLARE_INTERRUPT(18) \
369 DECLARE_INTERRUPT(19) \
370 DECLARE_INTERRUPT(20) \
371 DECLARE_INTERRUPT(21) \
372 DECLARE_INTERRUPT(22) \
373 DECLARE_INTERRUPT(23) \
374 DECLARE_INTERRUPT(24) \
375 DECLARE_INTERRUPT(25) \
376 DECLARE_INTERRUPT(26) \
377 DECLARE_INTERRUPT(27) \
378 DECLARE_INTERRUPT(28) \
379 DECLARE_INTERRUPT(29) \
380 DECLARE_INTERRUPT(30) \
381 DECLARE_INTERRUPT(31) \
382 DECLARE_INTERRUPT(32) \
383 DECLARE_INTERRUPT(33) \
384 DECLARE_INTERRUPT(34) \
385 DECLARE_INTERRUPT(35) \
386 DECLARE_INTERRUPT(36) \
387 DECLARE_INTERRUPT(37) \
388 DECLARE_INTERRUPT(38) \
389 DECLARE_INTERRUPT(39) \
390 DECLARE_INTERRUPT(40) \
391 DECLARE_INTERRUPT(41) \
392 DECLARE_INTERRUPT(42) \
393 DECLARE_INTERRUPT(43) \
394 DECLARE_INTERRUPT(44) \
395 DECLARE_INTERRUPT(45) \
396 DECLARE_INTERRUPT(46) \
397 DECLARE_INTERRUPT(47) \
398 DECLARE_INTERRUPT(48) \
399 DECLARE_INTERRUPT(49) \
400 DECLARE_INTERRUPT(50) \
401 DECLARE_INTERRUPT(51) \
402 DECLARE_INTERRUPT(52) \
403 DECLARE_INTERRUPT(53) \
404 DECLARE_INTERRUPT(54) \
405 DECLARE_INTERRUPT(55) \
406 DECLARE_INTERRUPT(56) \
407 DECLARE_INTERRUPT(57) \
408 DECLARE_INTERRUPT(58) \
409 DECLARE_INTERRUPT(59) \
410 DECLARE_INTERRUPT(60) \
411 DECLARE_INTERRUPT(61) \
412 DECLARE_INTERRUPT(62) \
413 DECLARE_INTERRUPT(63) \
414 DECLARE_INTERRUPT(64) \
415 DECLARE_INTERRUPT(65) \
416 DECLARE_INTERRUPT(66) \
417 DECLARE_INTERRUPT(67) \
418 DECLARE_INTERRUPT(68) \
419 DECLARE_INTERRUPT(69) \
420 DECLARE_INTERRUPT(70) \
421 DECLARE_INTERRUPT(71) \
422 DECLARE_INTERRUPT(72) \
423 DECLARE_INTERRUPT(73) \
424 DECLARE_INTERRUPT(74) \
425 DECLARE_INTERRUPT(75) \
426 DECLARE_INTERRUPT(76) \
427 DECLARE_INTERRUPT(77) \
428 DECLARE_INTERRUPT(78) \
429 DECLARE_INTERRUPT(79) \
430 DECLARE_INTERRUPT(80) \
431 DECLARE_INTERRUPT(81) \
432 DECLARE_INTERRUPT(82) \
433 DECLARE_INTERRUPT(83) \
434 DECLARE_INTERRUPT(84) \
435 DECLARE_INTERRUPT(85) \
436 DECLARE_INTERRUPT(86) \
437 DECLARE_INTERRUPT(87) \
438 DECLARE_INTERRUPT(88) \
439 DECLARE_INTERRUPT(89) \
440 DECLARE_INTERRUPT(90) \
441 DECLARE_INTERRUPT(91) \
442 DECLARE_INTERRUPT(92) \
443 DECLARE_INTERRUPT(93) \
444 DECLARE_INTERRUPT(94) \
445 DECLARE_INTERRUPT(95) \
446 DECLARE_INTERRUPT(97) \
447 DECLARE_INTERRUPT(96) \
448 DECLARE_INTERRUPT(98) \
449 DECLARE_INTERRUPT(99) \
450 DECLARE_INTERRUPT(100) \
451 DECLARE_INTERRUPT(101) \
452 DECLARE_INTERRUPT(102) \
453 DECLARE_INTERRUPT(103) \
454 DECLARE_INTERRUPT(104) \
455 DECLARE_INTERRUPT(105) \
456 DECLARE_INTERRUPT(106) \
457 DECLARE_INTERRUPT(107) \
458 DECLARE_INTERRUPT(108) \
459 DECLARE_INTERRUPT(109) \
460 DECLARE_INTERRUPT(110) \
461 DECLARE_INTERRUPT(111) \
462 DECLARE_INTERRUPT(112) \
463 DECLARE_INTERRUPT(113) \
464 DECLARE_INTERRUPT(114) \
465 DECLARE_INTERRUPT(115) \
466 DECLARE_INTERRUPT(116) \
467 DECLARE_INTERRUPT(117) \
468 DECLARE_INTERRUPT(118) \
469 DECLARE_INTERRUPT(119) \
470 DECLARE_INTERRUPT(120) \
471 DECLARE_INTERRUPT(121) \
472 DECLARE_INTERRUPT(122) \
473 DECLARE_INTERRUPT(123) \
474 DECLARE_INTERRUPT(124) \
475 DECLARE_INTERRUPT(125) \
476 DECLARE_INTERRUPT(126) \
477 DECLARE_INTERRUPT(127) \
478 DECLARE_INTERRUPT(128) \
479 DECLARE_INTERRUPT(129) \
480 DECLARE_INTERRUPT(130) \
481 DECLARE_INTERRUPT(131) \
482 DECLARE_INTERRUPT(132) \
483 DECLARE_INTERRUPT(133) \
484 DECLARE_INTERRUPT(134) \
485 DECLARE_INTERRUPT(135) \
486 DECLARE_INTERRUPT(136) \
487 DECLARE_INTERRUPT(137) \
488 DECLARE_INTERRUPT(138) \
489 DECLARE_INTERRUPT(139) \
490 DECLARE_INTERRUPT(140) \
491 DECLARE_INTERRUPT(141) \
492 DECLARE_INTERRUPT(142) \
493 DECLARE_INTERRUPT(143) \
494 DECLARE_INTERRUPT(144) \
495 DECLARE_INTERRUPT(145) \
496 DECLARE_INTERRUPT(146) \
497 DECLARE_INTERRUPT(147) \
498 DECLARE_INTERRUPT(148) \
499 DECLARE_INTERRUPT(149) \
500 DECLARE_INTERRUPT(150) \
501 DECLARE_INTERRUPT(151) \
502 DECLARE_INTERRUPT(152) \
503 DECLARE_INTERRUPT(153) \
504 DECLARE_INTERRUPT(154) \
505 DECLARE_INTERRUPT(155) \
506 DECLARE_INTERRUPT(156) \
507 DECLARE_INTERRUPT(157) \
508 DECLARE_INTERRUPT(158) \
509 DECLARE_INTERRUPT(159) \
510 DECLARE_INTERRUPT(160) \
511 DECLARE_INTERRUPT(161) \
512 DECLARE_INTERRUPT(162) \
513 DECLARE_INTERRUPT(163) \
514 DECLARE_INTERRUPT(164) \
515 DECLARE_INTERRUPT(165) \
516 DECLARE_INTERRUPT(166) \
517 DECLARE_INTERRUPT(167) \
518 DECLARE_INTERRUPT(168) \
519 DECLARE_INTERRUPT(169) \
520 DECLARE_INTERRUPT(170) \
521 DECLARE_INTERRUPT(171) \
522 DECLARE_INTERRUPT(172) \
523 DECLARE_INTERRUPT(173) \
524 DECLARE_INTERRUPT(174) \
525 DECLARE_INTERRUPT(175) \
526 DECLARE_INTERRUPT(176) \
527 DECLARE_INTERRUPT(177) \
528 DECLARE_INTERRUPT(178) \
529 DECLARE_INTERRUPT(179) \
530 DECLARE_INTERRUPT(180) \
531 DECLARE_INTERRUPT(181) \
532 DECLARE_INTERRUPT(182) \
533 DECLARE_INTERRUPT(183) \
534 DECLARE_INTERRUPT(184) \
535 DECLARE_INTERRUPT(185) \
536 DECLARE_INTERRUPT(186) \
537 DECLARE_INTERRUPT(187) \
538 DECLARE_INTERRUPT(188) \
539 DECLARE_INTERRUPT(189) \
540 DECLARE_INTERRUPT(190) \
541 DECLARE_INTERRUPT(191) \
542 DECLARE_INTERRUPT(192) \
543 DECLARE_INTERRUPT(193) \
544 DECLARE_INTERRUPT(194) \
545 DECLARE_INTERRUPT(195) \
546 DECLARE_INTERRUPT(196) \
547 DECLARE_INTERRUPT(197) \
548 DECLARE_INTERRUPT(198) \
549 DECLARE_INTERRUPT(199) \
550 DECLARE_INTERRUPT(200) \
551 DECLARE_INTERRUPT(201) \
552 DECLARE_INTERRUPT(202) \
553 DECLARE_INTERRUPT(203) \
554 DECLARE_INTERRUPT(204) \
555 DECLARE_INTERRUPT(205) \
556 DECLARE_INTERRUPT(206) \
557 DECLARE_INTERRUPT(207) \
558 DECLARE_INTERRUPT(208) \
559 DECLARE_INTERRUPT(209) \
560 DECLARE_INTERRUPT(210) \
561 DECLARE_INTERRUPT(211) \
562 DECLARE_INTERRUPT(212) \
563 DECLARE_INTERRUPT(213) \
564 DECLARE_INTERRUPT(214) \
565 DECLARE_INTERRUPT(215) \
566 DECLARE_INTERRUPT(216) \
567 DECLARE_INTERRUPT(217) \
568 DECLARE_INTERRUPT(218) \
569 DECLARE_INTERRUPT(219) \
570 DECLARE_INTERRUPT(220) \
571 DECLARE_INTERRUPT(221) \
572 DECLARE_INTERRUPT(222) \
573 DECLARE_INTERRUPT(223) \
574 DECLARE_INTERRUPT(224) \
575 DECLARE_INTERRUPT(225) \
576 DECLARE_INTERRUPT(226) \
577 DECLARE_INTERRUPT(227) \
578 DECLARE_INTERRUPT(228) \
579 DECLARE_INTERRUPT(229) \
580 DECLARE_INTERRUPT(230) \
581 DECLARE_INTERRUPT(231) \
582 DECLARE_INTERRUPT(232) \
583 DECLARE_INTERRUPT(233) \
584 DECLARE_INTERRUPT(234) \
585 DECLARE_INTERRUPT(235) \
586 DECLARE_INTERRUPT(236) \
587 DECLARE_INTERRUPT(237) \
588 DECLARE_INTERRUPT(238) \
589 DECLARE_INTERRUPT(239) \
590 DECLARE_INTERRUPT(240) \
591 DECLARE_INTERRUPT(241) \
592 DECLARE_INTERRUPT(242) \
593 DECLARE_INTERRUPT(243) \
594 DECLARE_INTERRUPT(244) \
595 DECLARE_INTERRUPT(245) \
596 DECLARE_INTERRUPT(246) \
597 DECLARE_INTERRUPT(247) \
598 DECLARE_INTERRUPT(248) \
599 DECLARE_INTERRUPT(249) \
600 DECLARE_INTERRUPT(250) \
601 DECLARE_INTERRUPT(251) \
602 DECLARE_INTERRUPT(252) \
603 DECLARE_INTERRUPT(253) \
604 DECLARE_INTERRUPT(254) \
605 DECLARE_INTERRUPT(255));
7c71034d
VB		 606
607#if defined(CONFIG_INTEL_CORE_ARCH)
608/*
609 * Get the number of CPU time counter ticks since it was read first time after
610 * restart. This yields a free running counter guaranteed to take almost 6
611 * years to wrap around even at 100GHz clock rate.
612 */
613u64 get_ticks(void)
614{
7c71034d
VB		 615 u64 now_tick = rdtsc();
616
bc2df1af
SG		 617 if (!gd->arch.tsc_base)
618 gd->arch.tsc_base = now_tick;
7c71034d 619
bc2df1af 620 return now_tick - gd->arch.tsc_base;
7c71034d
VB		 621}
622
623#define PLATFORM_INFO_MSR 0xce
624
625unsigned long get_tbclk(void)
626{
627 u32 ratio;
628 u64 platform_info = native_read_msr(PLATFORM_INFO_MSR);
629
630 ratio = (platform_info >> 8) & 0xff;
631 return 100 * 1000 * 1000 * ratio; /* 100MHz times Max Non Turbo ratio */
632}
633#endif
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