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aim_machdep.c (87546) aim_machdep.c (87702)
1/*
2 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
3 * Copyright (C) 1995, 1996 TooLs GmbH.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:

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51 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
52 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
53 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
54 * $NetBSD: machdep.c,v 1.74.2.1 2000/11/01 16:13:48 tv Exp $
55 */
56
57#ifndef lint
58static const char rcsid[] =
1/*
2 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
3 * Copyright (C) 1995, 1996 TooLs GmbH.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:

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51 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
52 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
53 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
54 * $NetBSD: machdep.c,v 1.74.2.1 2000/11/01 16:13:48 tv Exp $
55 */
56
57#ifndef lint
58static const char rcsid[] =
59 "$FreeBSD: head/sys/powerpc/aim/machdep.c 87546 2001-12-09 01:57:09Z dillon $";
59 "$FreeBSD: head/sys/powerpc/aim/machdep.c 87702 2001-12-11 23:33:44Z jhb $";
60#endif /* not lint */
61
62#include "opt_ddb.h"
63#include "opt_compat.h"
64#include "opt_msgbuf.h"
65
66#include <sys/param.h>
67#include <sys/systm.h>

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96#include <vm/vm_pager.h>
97#include <sys/user.h>
98#include <sys/ptrace.h>
99#include <machine/bat.h>
100#include <machine/clock.h>
101#include <machine/md_var.h>
102#include <machine/reg.h>
103#include <machine/fpu.h>
60#endif /* not lint */
61
62#include "opt_ddb.h"
63#include "opt_compat.h"
64#include "opt_msgbuf.h"
65
66#include <sys/param.h>
67#include <sys/systm.h>

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96#include <vm/vm_pager.h>
97#include <sys/user.h>
98#include <sys/ptrace.h>
99#include <machine/bat.h>
100#include <machine/clock.h>
101#include <machine/md_var.h>
102#include <machine/reg.h>
103#include <machine/fpu.h>
104#include <machine/globaldata.h>
105#include <machine/vmparam.h>
106#include <machine/elf.h>
107#include <machine/trap.h>
108#include <machine/powerpc.h>
109#include <dev/ofw/openfirm.h>
110#include <ddb/ddb.h>
111#include <sys/vnode.h>
112#include <machine/sigframe.h>

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347extern ipkdblow, ipkdbsize;
348#endif
349
350void
351powerpc_init(u_int startkernel, u_int endkernel, u_int basekernel, char *args)
352{
353 unsigned int exc, scratch;
354 struct mem_region *allmem, *availmem, *mp;
104#include <machine/vmparam.h>
105#include <machine/elf.h>
106#include <machine/trap.h>
107#include <machine/powerpc.h>
108#include <dev/ofw/openfirm.h>
109#include <ddb/ddb.h>
110#include <sys/vnode.h>
111#include <machine/sigframe.h>

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346extern ipkdblow, ipkdbsize;
347#endif
348
349void
350powerpc_init(u_int startkernel, u_int endkernel, u_int basekernel, char *args)
351{
352 unsigned int exc, scratch;
353 struct mem_region *allmem, *availmem, *mp;
355 struct globaldata *globalp;
354 struct pcpu *pcpup;
356
357 /*
358 * Set up BAT0 to only map the lowest 256 MB area
359 */
360 battable[0].batl = BATL(0x00000000, BAT_M, BAT_PP_RW);
361 battable[0].batu = BATU(0x00000000, BAT_BL_256M, BAT_Vs);
362
363 /*

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421 proc0uarea = (struct user *)pmap_steal_memory(UAREA_PAGES * PAGE_SIZE);
422 proc0kstack = pmap_steal_memory(KSTACK_PAGES * PAGE_SIZE);
423 proc0.p_uarea = proc0uarea;
424 thread0 = &proc0.p_thread;
425 thread0->td_kstack = proc0kstack;
426 thread0->td_pcb = (struct pcb *)
427 (thread0->td_kstack + KSTACK_PAGES * PAGE_SIZE) - 1;
428
355
356 /*
357 * Set up BAT0 to only map the lowest 256 MB area
358 */
359 battable[0].batl = BATL(0x00000000, BAT_M, BAT_PP_RW);
360 battable[0].batu = BATU(0x00000000, BAT_BL_256M, BAT_Vs);
361
362 /*

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420 proc0uarea = (struct user *)pmap_steal_memory(UAREA_PAGES * PAGE_SIZE);
421 proc0kstack = pmap_steal_memory(KSTACK_PAGES * PAGE_SIZE);
422 proc0.p_uarea = proc0uarea;
423 thread0 = &proc0.p_thread;
424 thread0->td_kstack = proc0kstack;
425 thread0->td_pcb = (struct pcb *)
426 (thread0->td_kstack + KSTACK_PAGES * PAGE_SIZE) - 1;
427
429 globalp = pmap_steal_memory(round_page(sizeof(struct globaldata)));
428 pcpup = pmap_steal_memory(round_page(sizeof(struct pcpu)));
430
431 /*
432 * XXX: Pass 0 as CPU id. This is bad. We need to work out
433 * XXX: which CPU we are somehow.
434 */
429
430 /*
431 * XXX: Pass 0 as CPU id. This is bad. We need to work out
432 * XXX: which CPU we are somehow.
433 */
435 globaldata_init(globalp, 0, sizeof(struct globaldata));
436 __asm ("mtsprg 0, %0" :: "r"(globalp));
434 pcpu_init(pcpup, 0, sizeof(struct pcpu));
435 __asm ("mtsprg 0, %0" :: "r"(pcpup));
437
438 /* Init basic tunables, hz etc */
439 init_param1();
440 init_param2(physmem);
441
442 /* setup curproc so the mutexes work */
443
444 PCPU_SET(curthread, thread0);
436
437 /* Init basic tunables, hz etc */
438 init_param1();
439 init_param2(physmem);
440
441 /* setup curproc so the mutexes work */
442
443 PCPU_SET(curthread, thread0);
445 PCPU_SET(spinlocks, NULL);
446
447 LIST_INIT(&thread0->td_contested);
448
449/* XXX: NetBSDism I _think_. Not sure yet. */
450#if 0
451 curpm = PCPU_GET(curpcb)->pcb_pmreal = PCPU_GET(curpcb)->pcb_pm = kernel_pmap;
452#endif
453
454 /*
455 * Initialise some mutexes.
456 */
457 mtx_init(&Giant, "Giant", MTX_DEF | MTX_RECURSE);
458 mtx_init(&sched_lock, "sched lock", MTX_SPIN | MTX_RECURSE);
459 mtx_init(&proc0.p_mtx, "process lock", MTX_DEF);
444
445 LIST_INIT(&thread0->td_contested);
446
447/* XXX: NetBSDism I _think_. Not sure yet. */
448#if 0
449 curpm = PCPU_GET(curpcb)->pcb_pmreal = PCPU_GET(curpcb)->pcb_pm = kernel_pmap;
450#endif
451
452 /*
453 * Initialise some mutexes.
454 */
455 mtx_init(&Giant, "Giant", MTX_DEF | MTX_RECURSE);
456 mtx_init(&sched_lock, "sched lock", MTX_SPIN | MTX_RECURSE);
457 mtx_init(&proc0.p_mtx, "process lock", MTX_DEF);
458 mtx_lock(&Giant);
460
461 /*
462 * Initialise console.
463 */
464 cninit();
465
459
460 /*
461 * Initialise console.
462 */
463 cninit();
464
466 mtx_lock(&Giant);
467
468#ifdef __notyet__ /* Needs some rethinking regarding real/virtual OFW */
469 OF_set_callback(callback);
470#endif
471
472 /*
473 * Set up trap vectors
474 */
475 for (exc = EXC_RSVD; exc <= EXC_LAST; exc += 0x100) {

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903ptrace_clear_single_step(struct thread *td)
904{
905
906 /* XXX: coming soon... */
907 return (ENOSYS);
908}
909
910/*
465#ifdef __notyet__ /* Needs some rethinking regarding real/virtual OFW */
466 OF_set_callback(callback);
467#endif
468
469 /*
470 * Set up trap vectors
471 */
472 for (exc = EXC_RSVD; exc <= EXC_LAST; exc += 0x100) {

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900ptrace_clear_single_step(struct thread *td)
901{
902
903 /* XXX: coming soon... */
904 return (ENOSYS);
905}
906
907/*
911 * Initialise a struct globaldata.
908 * Initialise a struct pcpu.
912 */
913void
909 */
910void
914globaldata_init(struct globaldata *globaldata, int cpuid, size_t sz)
915{
911cpu_pcpu_init(struct pcpu *pcpu, int cpuid, size_t sz)
912{
916
913
917 bzero(globaldata, sz);
918 globaldata->gd_cpuid = cpuid;
919 globaldata->gd_next_asn = 0;
920 globaldata->gd_current_asngen = 1;
914 pcpu->pc_current_asngen = 1;
921}
922
923void
924enable_fpu(pcb)
925 struct pcb *pcb;
926{
927 int msr, scratch;
928

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916
917void
918enable_fpu(pcb)
919 struct pcb *pcb;
920{
921 int msr, scratch;
922

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