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-rw-r--r--arch/ppc64/kernel/pSeries_setup.c184
1 files changed, 6 insertions, 178 deletions
diff --git a/arch/ppc64/kernel/pSeries_setup.c b/arch/ppc64/kernel/pSeries_setup.c
index 6c0d1d58a552..f2b41243342c 100644
--- a/arch/ppc64/kernel/pSeries_setup.c
+++ b/arch/ppc64/kernel/pSeries_setup.c
@@ -71,11 +71,6 @@
71#define DBG(fmt...) 71#define DBG(fmt...)
72#endif 72#endif
73 73
74extern void pSeries_final_fixup(void);
75
76extern void pSeries_get_boot_time(struct rtc_time *rtc_time);
77extern void pSeries_get_rtc_time(struct rtc_time *rtc_time);
78extern int pSeries_set_rtc_time(struct rtc_time *rtc_time);
79extern void find_udbg_vterm(void); 74extern void find_udbg_vterm(void);
80extern void system_reset_fwnmi(void); /* from head.S */ 75extern void system_reset_fwnmi(void); /* from head.S */
81extern void machine_check_fwnmi(void); /* from head.S */ 76extern void machine_check_fwnmi(void); /* from head.S */
@@ -84,9 +79,6 @@ extern void generic_find_legacy_serial_ports(u64 *physport,
84 79
85int fwnmi_active; /* TRUE if an FWNMI handler is present */ 80int fwnmi_active; /* TRUE if an FWNMI handler is present */
86 81
87extern unsigned long ppc_proc_freq;
88extern unsigned long ppc_tb_freq;
89
90extern void pSeries_system_reset_exception(struct pt_regs *regs); 82extern void pSeries_system_reset_exception(struct pt_regs *regs);
91extern int pSeries_machine_check_exception(struct pt_regs *regs); 83extern int pSeries_machine_check_exception(struct pt_regs *regs);
92 84
@@ -381,171 +373,6 @@ static void __init pSeries_init_early(void)
381} 373}
382 374
383 375
384static void pSeries_progress(char *s, unsigned short hex)
385{
386 struct device_node *root;
387 int width, *p;
388 char *os;
389 static int display_character, set_indicator;
390 static int max_width;
391 static DEFINE_SPINLOCK(progress_lock);
392 static int pending_newline = 0; /* did last write end with unprinted newline? */
393
394 if (!rtas.base)
395 return;
396
397 if (max_width == 0) {
398 if ((root = find_path_device("/rtas")) &&
399 (p = (unsigned int *)get_property(root,
400 "ibm,display-line-length",
401 NULL)))
402 max_width = *p;
403 else
404 max_width = 0x10;
405 display_character = rtas_token("display-character");
406 set_indicator = rtas_token("set-indicator");
407 }
408
409 if (display_character == RTAS_UNKNOWN_SERVICE) {
410 /* use hex display if available */
411 if (set_indicator != RTAS_UNKNOWN_SERVICE)
412 rtas_call(set_indicator, 3, 1, NULL, 6, 0, hex);
413 return;
414 }
415
416 spin_lock(&progress_lock);
417
418 /*
419 * Last write ended with newline, but we didn't print it since
420 * it would just clear the bottom line of output. Print it now
421 * instead.
422 *
423 * If no newline is pending, print a CR to start output at the
424 * beginning of the line.
425 */
426 if (pending_newline) {
427 rtas_call(display_character, 1, 1, NULL, '\r');
428 rtas_call(display_character, 1, 1, NULL, '\n');
429 pending_newline = 0;
430 } else {
431 rtas_call(display_character, 1, 1, NULL, '\r');
432 }
433
434 width = max_width;
435 os = s;
436 while (*os) {
437 if (*os == '\n' || *os == '\r') {
438 /* Blank to end of line. */
439 while (width-- > 0)
440 rtas_call(display_character, 1, 1, NULL, ' ');
441
442 /* If newline is the last character, save it
443 * until next call to avoid bumping up the
444 * display output.
445 */
446 if (*os == '\n' && !os[1]) {
447 pending_newline = 1;
448 spin_unlock(&progress_lock);
449 return;
450 }
451
452 /* RTAS wants CR-LF, not just LF */
453
454 if (*os == '\n') {
455 rtas_call(display_character, 1, 1, NULL, '\r');
456 rtas_call(display_character, 1, 1, NULL, '\n');
457 } else {
458 /* CR might be used to re-draw a line, so we'll
459 * leave it alone and not add LF.
460 */
461 rtas_call(display_character, 1, 1, NULL, *os);
462 }
463
464 width = max_width;
465 } else {
466 width--;
467 rtas_call(display_character, 1, 1, NULL, *os);
468 }
469
470 os++;
471
472 /* if we overwrite the screen length */
473 if (width <= 0)
474 while ((*os != 0) && (*os != '\n') && (*os != '\r'))
475 os++;
476 }
477
478 /* Blank to end of line. */
479 while (width-- > 0)
480 rtas_call(display_character, 1, 1, NULL, ' ');
481
482 spin_unlock(&progress_lock);
483}
484
485extern void setup_default_decr(void);
486
487/* Some sane defaults: 125 MHz timebase, 1GHz processor */
488#define DEFAULT_TB_FREQ 125000000UL
489#define DEFAULT_PROC_FREQ (DEFAULT_TB_FREQ * 8)
490
491static void __init pSeries_calibrate_decr(void)
492{
493 struct device_node *cpu;
494 struct div_result divres;
495 unsigned int *fp;
496 int node_found;
497
498 /*
499 * The cpu node should have a timebase-frequency property
500 * to tell us the rate at which the decrementer counts.
501 */
502 cpu = of_find_node_by_type(NULL, "cpu");
503
504 ppc_tb_freq = DEFAULT_TB_FREQ; /* hardcoded default */
505 node_found = 0;
506 if (cpu != 0) {
507 fp = (unsigned int *)get_property(cpu, "timebase-frequency",
508 NULL);
509 if (fp != 0) {
510 node_found = 1;
511 ppc_tb_freq = *fp;
512 }
513 }
514 if (!node_found)
515 printk(KERN_ERR "WARNING: Estimating decrementer frequency "
516 "(not found)\n");
517
518 ppc_proc_freq = DEFAULT_PROC_FREQ;
519 node_found = 0;
520 if (cpu != 0) {
521 fp = (unsigned int *)get_property(cpu, "clock-frequency",
522 NULL);
523 if (fp != 0) {
524 node_found = 1;
525 ppc_proc_freq = *fp;
526 }
527 }
528 if (!node_found)
529 printk(KERN_ERR "WARNING: Estimating processor frequency "
530 "(not found)\n");
531
532 of_node_put(cpu);
533
534 printk(KERN_INFO "time_init: decrementer frequency = %lu.%.6lu MHz\n",
535 ppc_tb_freq/1000000, ppc_tb_freq%1000000);
536 printk(KERN_INFO "time_init: processor frequency = %lu.%.6lu MHz\n",
537 ppc_proc_freq/1000000, ppc_proc_freq%1000000);
538
539 tb_ticks_per_jiffy = ppc_tb_freq / HZ;
540 tb_ticks_per_sec = tb_ticks_per_jiffy * HZ;
541 tb_ticks_per_usec = ppc_tb_freq / 1000000;
542 tb_to_us = mulhwu_scale_factor(ppc_tb_freq, 1000000);
543 div128_by_32(1024*1024, 0, tb_ticks_per_sec, &divres);
544 tb_to_xs = divres.result_low;
545
546 setup_default_decr();
547}
548
549static int pSeries_check_legacy_ioport(unsigned int baseport) 376static int pSeries_check_legacy_ioport(unsigned int baseport)
550{ 377{
551 struct device_node *np; 378 struct device_node *np;
@@ -596,16 +423,17 @@ struct machdep_calls __initdata pSeries_md = {
596 .get_cpuinfo = pSeries_get_cpuinfo, 423 .get_cpuinfo = pSeries_get_cpuinfo,
597 .log_error = pSeries_log_error, 424 .log_error = pSeries_log_error,
598 .pcibios_fixup = pSeries_final_fixup, 425 .pcibios_fixup = pSeries_final_fixup,
426 .irq_bus_setup = pSeries_irq_bus_setup,
599 .restart = rtas_restart, 427 .restart = rtas_restart,
600 .power_off = rtas_power_off, 428 .power_off = rtas_power_off,
601 .halt = rtas_halt, 429 .halt = rtas_halt,
602 .panic = rtas_os_term, 430 .panic = rtas_os_term,
603 .cpu_die = pSeries_mach_cpu_die, 431 .cpu_die = pSeries_mach_cpu_die,
604 .get_boot_time = pSeries_get_boot_time, 432 .get_boot_time = rtas_get_boot_time,
605 .get_rtc_time = pSeries_get_rtc_time, 433 .get_rtc_time = rtas_get_rtc_time,
606 .set_rtc_time = pSeries_set_rtc_time, 434 .set_rtc_time = rtas_set_rtc_time,
607 .calibrate_decr = pSeries_calibrate_decr, 435 .calibrate_decr = generic_calibrate_decr,
608 .progress = pSeries_progress, 436 .progress = rtas_progress,
609 .check_legacy_ioport = pSeries_check_legacy_ioport, 437 .check_legacy_ioport = pSeries_check_legacy_ioport,
610 .system_reset_exception = pSeries_system_reset_exception, 438 .system_reset_exception = pSeries_system_reset_exception,
611 .machine_check_exception = pSeries_machine_check_exception, 439 .machine_check_exception = pSeries_machine_check_exception,
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-03 20:29:45 -0400