2 * Initial implementation:
3 * Copyright (c) 2001 Robert Drehmel
6 * As long as the above copyright statement and this notice remain
7 * unchanged, you can do what ever you want with this file.
10 * Copyright (c) 2008 - 2012 Marius Strobl <marius@FreeBSD.org>
11 * All rights reserved.
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
39 * FreeBSD/sparc64 kernel loader - machine dependent part
41 * - implements copyin and readin functions that map kernel
42 * pages on demand. The machine independent code does not
43 * know the size of the kernel early enough to pre-enter
44 * TTEs and install just one 4MB mapping seemed to limiting
49 #include <sys/param.h>
51 #include <sys/linker.h>
52 #include <sys/queue.h>
53 #include <sys/types.h>
54 #ifdef LOADER_ZFS_SUPPORT
56 #include "../zfs/libzfs.h"
60 #include <machine/asi.h>
61 #include <machine/cmt.h>
62 #include <machine/cpufunc.h>
63 #include <machine/elf.h>
64 #include <machine/fireplane.h>
65 #include <machine/jbus.h>
66 #include <machine/lsu.h>
67 #include <machine/metadata.h>
68 #include <machine/tte.h>
69 #include <machine/tlb.h>
70 #include <machine/upa.h>
71 #include <machine/ver.h>
72 #include <machine/vmparam.h>
74 #include "bootstrap.h"
78 extern char bootprog_name[], bootprog_rev[], bootprog_date[], bootprog_maker[];
83 LOADSZ = 0x1000000 /* for kernel and modules */
86 /* At least Sun Fire V1280 require page sized allocations to be claimed. */
87 CTASSERT(HEAPSZ % PAGE_SIZE == 0);
89 static struct mmu_ops {
90 void (*tlb_init)(void);
91 int (*mmu_mapin)(vm_offset_t va, vm_size_t len);
94 typedef void kernel_entry_t(vm_offset_t mdp, u_long o1, u_long o2, u_long o3,
97 static inline u_long dtlb_get_data_sun4u(u_int, u_int);
98 static int dtlb_enter_sun4u(u_int, u_long data, vm_offset_t);
99 static vm_offset_t dtlb_va_to_pa_sun4u(vm_offset_t);
100 static inline u_long itlb_get_data_sun4u(u_int, u_int);
101 static int itlb_enter_sun4u(u_int, u_long data, vm_offset_t);
102 static vm_offset_t itlb_va_to_pa_sun4u(vm_offset_t);
103 static void itlb_relocate_locked0_sun4u(void);
104 extern vm_offset_t md_load(char *, vm_offset_t *);
105 static int sparc64_autoload(void);
106 static ssize_t sparc64_readin(const int, vm_offset_t, const size_t);
107 static ssize_t sparc64_copyin(const void *, vm_offset_t, size_t);
108 static vm_offset_t claim_virt(vm_offset_t, size_t, int);
109 static vm_offset_t alloc_phys(size_t, int);
110 static int map_phys(int, size_t, vm_offset_t, vm_offset_t);
111 static void release_phys(vm_offset_t, u_int);
112 static int __elfN(exec)(struct preloaded_file *);
113 static int mmu_mapin_sun4u(vm_offset_t, vm_size_t);
114 static vm_offset_t init_heap(void);
115 static phandle_t find_bsp_sun4u(phandle_t, uint32_t);
116 const char *cpu_cpuid_prop_sun4u(void);
117 uint32_t cpu_get_mid_sun4u(void);
118 static void tlb_init_sun4u(void);
121 typedef u_int64_t tte_t;
123 static void pmap_print_tlb_sun4u(void);
124 static void pmap_print_tte_sun4u(tte_t, tte_t);
127 static struct mmu_ops mmu_ops_sun4u = { tlb_init_sun4u, mmu_mapin_sun4u };
130 struct tlb_entry *dtlb_store;
131 struct tlb_entry *itlb_store;
135 static u_int dtlb_slot_max;
136 static u_int itlb_slot_max;
137 static u_int tlb_locked;
139 static vm_offset_t curkva = 0;
140 static vm_offset_t heapva;
142 static char bootpath[64];
143 static phandle_t root;
146 * Machine dependent structures that the machine independent
149 struct devsw *devsw[] = {
150 #ifdef LOADER_DISK_SUPPORT
153 #ifdef LOADER_NET_SUPPORT
156 #ifdef LOADER_ZFS_SUPPORT
161 struct arch_switch archsw;
163 static struct file_format sparc64_elf = {
167 struct file_format *file_formats[] = {
172 struct fs_ops *file_system[] = {
173 #ifdef LOADER_UFS_SUPPORT
176 #ifdef LOADER_CD9660_SUPPORT
179 #ifdef LOADER_ZFS_SUPPORT
182 #ifdef LOADER_ZIP_SUPPORT
185 #ifdef LOADER_GZIP_SUPPORT
188 #ifdef LOADER_BZIP2_SUPPORT
191 #ifdef LOADER_NFS_SUPPORT
194 #ifdef LOADER_TFTP_SUPPORT
199 struct netif_driver *netif_drivers[] = {
200 #ifdef LOADER_NET_SUPPORT
206 extern struct console ofwconsole;
207 struct console *consoles[] = {
214 watch_phys_set_mask(vm_offset_t pa, u_long mask)
218 stxa(AA_DMMU_PWPR, ASI_DMMU, pa & (((2UL << 38) - 1) << 3));
219 lsucr = ldxa(0, ASI_LSU_CTL_REG);
220 lsucr = ((lsucr | LSU_PW) & ~LSU_PM_MASK) |
221 (mask << LSU_PM_SHIFT);
222 stxa(0, ASI_LSU_CTL_REG, lsucr);
227 watch_phys_set(vm_offset_t pa, int sz)
231 off = (u_long)pa & 7;
232 /* Test for misaligned watch points. */
235 return (watch_phys_set_mask(pa, ((1 << sz) - 1) << off));
240 watch_virt_set_mask(vm_offset_t va, u_long mask)
244 stxa(AA_DMMU_VWPR, ASI_DMMU, va & (((2UL << 41) - 1) << 3));
245 lsucr = ldxa(0, ASI_LSU_CTL_REG);
246 lsucr = ((lsucr | LSU_VW) & ~LSU_VM_MASK) |
247 (mask << LSU_VM_SHIFT);
248 stxa(0, ASI_LSU_CTL_REG, lsucr);
253 watch_virt_set(vm_offset_t va, int sz)
257 off = (u_long)va & 7;
258 /* Test for misaligned watch points. */
261 return (watch_virt_set_mask(va, ((1 << sz) - 1) << off));
269 sparc64_autoload(void)
276 sparc64_readin(const int fd, vm_offset_t va, const size_t len)
279 mmu_ops->mmu_mapin(va, len);
280 return (read(fd, (void *)va, len));
284 sparc64_copyin(const void *src, vm_offset_t dest, size_t len)
287 mmu_ops->mmu_mapin(dest, len);
288 memcpy((void *)dest, src, len);
296 claim_virt(vm_offset_t virt, size_t size, int align)
300 if (OF_call_method("claim", mmu, 3, 1, virt, size, align, &mva) == -1)
301 return ((vm_offset_t)-1);
306 alloc_phys(size_t size, int align)
308 cell_t phys_hi, phys_low;
310 if (OF_call_method("claim", memory, 2, 2, size, align, &phys_low,
312 return ((vm_offset_t)-1);
313 return ((vm_offset_t)phys_hi << 32 | phys_low);
317 map_phys(int mode, size_t size, vm_offset_t virt, vm_offset_t phys)
320 return (OF_call_method("map", mmu, 5, 0, (uint32_t)phys,
321 (uint32_t)(phys >> 32), virt, size, mode));
325 release_phys(vm_offset_t phys, u_int size)
328 (void)OF_call_method("release", memory, 3, 0, (uint32_t)phys,
329 (uint32_t)(phys >> 32), size);
333 __elfN(exec)(struct preloaded_file *fp)
335 struct file_metadata *fmp;
341 if ((fmp = file_findmetadata(fp, MODINFOMD_ELFHDR)) == 0)
343 e = (Elf_Ehdr *)&fmp->md_data;
345 if ((error = md_load(fp->f_args, &mdp)) != 0)
348 printf("jumping to kernel entry at %#lx.\n", e->e_entry);
350 pmap_print_tlb_sun4u();
357 OF_release((void *)heapva, HEAPSZ);
359 ((kernel_entry_t *)entry)(mdp, 0, 0, 0, openfirmware);
361 panic("%s: exec returned", __func__);
365 dtlb_get_data_sun4u(u_int tlb, u_int slot)
369 slot = TLB_DAR_SLOT(tlb, slot);
371 * We read ASI_DTLB_DATA_ACCESS_REG twice back-to-back in order to
372 * work around errata of USIII and beyond.
374 pstate = rdpr(pstate);
375 wrpr(pstate, pstate & ~PSTATE_IE, 0);
376 (void)ldxa(slot, ASI_DTLB_DATA_ACCESS_REG);
377 data = ldxa(slot, ASI_DTLB_DATA_ACCESS_REG);
378 wrpr(pstate, pstate, 0);
383 itlb_get_data_sun4u(u_int tlb, u_int slot)
387 slot = TLB_DAR_SLOT(tlb, slot);
389 * We read ASI_DTLB_DATA_ACCESS_REG twice back-to-back in order to
390 * work around errata of USIII and beyond.
392 pstate = rdpr(pstate);
393 wrpr(pstate, pstate & ~PSTATE_IE, 0);
394 (void)ldxa(slot, ASI_ITLB_DATA_ACCESS_REG);
395 data = ldxa(slot, ASI_ITLB_DATA_ACCESS_REG);
396 wrpr(pstate, pstate, 0);
401 dtlb_va_to_pa_sun4u(vm_offset_t va)
406 pstate = rdpr(pstate);
407 wrpr(pstate, pstate & ~PSTATE_IE, 0);
408 for (i = 0; i < dtlb_slot_max; i++) {
409 reg = ldxa(TLB_DAR_SLOT(tlb_locked, i),
410 ASI_DTLB_TAG_READ_REG);
411 if (TLB_TAR_VA(reg) != va)
413 reg = dtlb_get_data_sun4u(tlb_locked, i);
414 wrpr(pstate, pstate, 0);
416 if (cpu_impl == CPU_IMPL_SPARC64V ||
417 cpu_impl >= CPU_IMPL_ULTRASPARCIII)
418 return (reg & TD_PA_CH_MASK);
419 return (reg & TD_PA_SF_MASK);
421 wrpr(pstate, pstate, 0);
426 itlb_va_to_pa_sun4u(vm_offset_t va)
431 pstate = rdpr(pstate);
432 wrpr(pstate, pstate & ~PSTATE_IE, 0);
433 for (i = 0; i < itlb_slot_max; i++) {
434 reg = ldxa(TLB_DAR_SLOT(tlb_locked, i),
435 ASI_ITLB_TAG_READ_REG);
436 if (TLB_TAR_VA(reg) != va)
438 reg = itlb_get_data_sun4u(tlb_locked, i);
439 wrpr(pstate, pstate, 0);
441 if (cpu_impl == CPU_IMPL_SPARC64V ||
442 cpu_impl >= CPU_IMPL_ULTRASPARCIII)
443 return (reg & TD_PA_CH_MASK);
444 return (reg & TD_PA_SF_MASK);
446 wrpr(pstate, pstate, 0);
451 dtlb_enter_sun4u(u_int index, u_long data, vm_offset_t virt)
454 return (OF_call_method("SUNW,dtlb-load", mmu, 3, 0, index, data,
459 itlb_enter_sun4u(u_int index, u_long data, vm_offset_t virt)
462 if (cpu_impl == CPU_IMPL_ULTRASPARCIIIp && index == 0 &&
464 panic("%s: won't enter locked TLB entry at index 0 on USIII+",
466 return (OF_call_method("SUNW,itlb-load", mmu, 3, 0, index, data,
471 itlb_relocate_locked0_sun4u(void)
473 u_long data, pstate, tag;
476 if (cpu_impl != CPU_IMPL_ULTRASPARCIIIp)
479 pstate = rdpr(pstate);
480 wrpr(pstate, pstate & ~PSTATE_IE, 0);
482 data = itlb_get_data_sun4u(tlb_locked, 0);
483 if ((data & (TD_V | TD_L)) != (TD_V | TD_L)) {
484 wrpr(pstate, pstate, 0);
488 /* Flush the mapping of slot 0. */
489 tag = ldxa(TLB_DAR_SLOT(tlb_locked, 0), ASI_ITLB_TAG_READ_REG);
490 stxa(TLB_DEMAP_VA(TLB_TAR_VA(tag)) | TLB_DEMAP_PRIMARY |
491 TLB_DEMAP_PAGE, ASI_IMMU_DEMAP, 0);
492 flush(0); /* The USIII-family ignores the address. */
495 * Search a replacement slot != 0 and enter the data and tag
496 * that formerly were in slot 0.
498 for (i = 1; i < itlb_slot_max; i++) {
499 if ((itlb_get_data_sun4u(tlb_locked, i) & TD_V) != 0)
502 stxa(AA_IMMU_TAR, ASI_IMMU, tag);
503 stxa(TLB_DAR_SLOT(tlb_locked, i), ASI_ITLB_DATA_ACCESS_REG,
505 flush(0); /* The USIII-family ignores the address. */
508 wrpr(pstate, pstate, 0);
509 if (i == itlb_slot_max)
510 panic("%s: could not find a replacement slot", __func__);
514 mmu_mapin_sun4u(vm_offset_t va, vm_size_t len)
520 if (va + len > curkva)
523 pa = (vm_offset_t)-1;
524 len += va & PAGE_MASK_4M;
527 if (dtlb_va_to_pa_sun4u(va) == (vm_offset_t)-1 ||
528 itlb_va_to_pa_sun4u(va) == (vm_offset_t)-1) {
529 /* Allocate a physical page, claim the virtual area. */
530 if (pa == (vm_offset_t)-1) {
531 pa = alloc_phys(PAGE_SIZE_4M, PAGE_SIZE_4M);
532 if (pa == (vm_offset_t)-1)
533 panic("%s: out of memory", __func__);
534 mva = claim_virt(va, PAGE_SIZE_4M, 0);
536 panic("%s: can't claim virtual page "
537 "(wanted %#lx, got %#lx)",
540 * The mappings may have changed, be paranoid.
545 * Actually, we can only allocate two pages less at
546 * most (depending on the kernel TSB size).
548 if (dtlb_slot >= dtlb_slot_max)
549 panic("%s: out of dtlb_slots", __func__);
550 if (itlb_slot >= itlb_slot_max)
551 panic("%s: out of itlb_slots", __func__);
552 data = TD_V | TD_4M | TD_PA(pa) | TD_L | TD_CP |
554 dtlb_store[dtlb_slot].te_pa = pa;
555 dtlb_store[dtlb_slot].te_va = va;
556 index = dtlb_slot_max - dtlb_slot - 1;
557 if (dtlb_enter_sun4u(index, data, va) < 0)
558 panic("%s: can't enter dTLB slot %d data "
559 "%#lx va %#lx", __func__, index, data,
562 itlb_store[itlb_slot].te_pa = pa;
563 itlb_store[itlb_slot].te_va = va;
564 index = itlb_slot_max - itlb_slot - 1;
565 if (itlb_enter_sun4u(index, data, va) < 0)
566 panic("%s: can't enter iTLB slot %d data "
567 "%#lx va %#lxd", __func__, index, data,
570 pa = (vm_offset_t)-1;
572 len -= len > PAGE_SIZE_4M ? PAGE_SIZE_4M : len;
575 if (pa != (vm_offset_t)-1)
576 release_phys(pa, PAGE_SIZE_4M);
584 /* There is no need for continuous physical heap memory. */
585 heapva = (vm_offset_t)OF_claim((void *)HEAPVA, HEAPSZ, 32);
590 find_bsp_sun4u(phandle_t node, uint32_t bspid)
592 char type[sizeof("cpu")];
596 for (; node > 0; node = OF_peer(node)) {
597 child = OF_child(node);
599 child = find_bsp_sun4u(child, bspid);
603 if (OF_getprop(node, "device_type", type,
606 if (strcmp(type, "cpu") != 0)
608 if (OF_getprop(node, cpu_cpuid_prop_sun4u(), &cpuid,
619 cpu_cpuid_prop_sun4u(void)
623 case CPU_IMPL_SPARC64:
624 case CPU_IMPL_SPARC64V:
625 case CPU_IMPL_ULTRASPARCI:
626 case CPU_IMPL_ULTRASPARCII:
627 case CPU_IMPL_ULTRASPARCIIi:
628 case CPU_IMPL_ULTRASPARCIIe:
629 return ("upa-portid");
630 case CPU_IMPL_ULTRASPARCIII:
631 case CPU_IMPL_ULTRASPARCIIIp:
632 case CPU_IMPL_ULTRASPARCIIIi:
633 case CPU_IMPL_ULTRASPARCIIIip:
635 case CPU_IMPL_ULTRASPARCIV:
636 case CPU_IMPL_ULTRASPARCIVp:
644 cpu_get_mid_sun4u(void)
648 case CPU_IMPL_SPARC64:
649 case CPU_IMPL_SPARC64V:
650 case CPU_IMPL_ULTRASPARCI:
651 case CPU_IMPL_ULTRASPARCII:
652 case CPU_IMPL_ULTRASPARCIIi:
653 case CPU_IMPL_ULTRASPARCIIe:
654 return (UPA_CR_GET_MID(ldxa(0, ASI_UPA_CONFIG_REG)));
655 case CPU_IMPL_ULTRASPARCIII:
656 case CPU_IMPL_ULTRASPARCIIIp:
657 return (FIREPLANE_CR_GET_AID(ldxa(AA_FIREPLANE_CONFIG,
658 ASI_FIREPLANE_CONFIG_REG)));
659 case CPU_IMPL_ULTRASPARCIIIi:
660 case CPU_IMPL_ULTRASPARCIIIip:
661 return (JBUS_CR_GET_JID(ldxa(0, ASI_JBUS_CONFIG_REG)));
662 case CPU_IMPL_ULTRASPARCIV:
663 case CPU_IMPL_ULTRASPARCIVp:
664 return (INTR_ID_GET_ID(ldxa(AA_INTR_ID, ASI_INTR_ID)));
675 cpu_impl = VER_IMPL(rdpr(ver));
677 case CPU_IMPL_SPARC64:
678 case CPU_IMPL_ULTRASPARCI:
679 case CPU_IMPL_ULTRASPARCII:
680 case CPU_IMPL_ULTRASPARCIIi:
681 case CPU_IMPL_ULTRASPARCIIe:
682 tlb_locked = TLB_DAR_T32;
684 case CPU_IMPL_ULTRASPARCIII:
685 case CPU_IMPL_ULTRASPARCIIIp:
686 case CPU_IMPL_ULTRASPARCIIIi:
687 case CPU_IMPL_ULTRASPARCIIIip:
688 case CPU_IMPL_ULTRASPARCIV:
689 case CPU_IMPL_ULTRASPARCIVp:
690 tlb_locked = TLB_DAR_T16;
692 case CPU_IMPL_SPARC64V:
693 tlb_locked = TLB_DAR_FTLB;
696 bsp = find_bsp_sun4u(OF_child(root), cpu_get_mid_sun4u());
698 panic("%s: no node for bootcpu?!?!", __func__);
700 if (OF_getprop(bsp, "#dtlb-entries", &dtlb_slot_max,
701 sizeof(dtlb_slot_max)) == -1 ||
702 OF_getprop(bsp, "#itlb-entries", &itlb_slot_max,
703 sizeof(itlb_slot_max)) == -1)
704 panic("%s: can't get TLB slot max.", __func__);
706 if (cpu_impl == CPU_IMPL_ULTRASPARCIIIp) {
708 printf("pre fixup:\n");
709 pmap_print_tlb_sun4u();
713 * Relocate the locked entry in it16 slot 0 (if existent)
714 * as part of working around Cheetah+ erratum 34.
716 itlb_relocate_locked0_sun4u();
719 printf("post fixup:\n");
720 pmap_print_tlb_sun4u();
724 dtlb_store = malloc(dtlb_slot_max * sizeof(*dtlb_store));
725 itlb_store = malloc(itlb_slot_max * sizeof(*itlb_store));
726 if (dtlb_store == NULL || itlb_store == NULL)
727 panic("%s: can't allocate TLB store", __func__);
730 #ifdef LOADER_ZFS_SUPPORT
732 sparc64_zfs_probe(void)
735 struct zfs_devdesc zfs_currdev;
736 char alias[64], devname[sizeof(alias) + sizeof(":x") - 1];
737 char type[sizeof("device_type")];
738 char *bdev, *dev, *odev;
741 phandle_t aliases, options;
743 /* Get the GUID of the ZFS pool on the boot device. */
745 zfs_probe_dev(bootpath, &guid);
748 * Get the GUIDs of the ZFS pools on any additional disks listed in
749 * the boot-device environment variable.
751 if ((aliases = OF_finddevice("/aliases")) == -1)
753 options = OF_finddevice("/options");
754 len = OF_getproplen(options, "boot-device");
757 bdev = odev = malloc(len + 1);
760 if (OF_getprop(options, "boot-device", bdev, len) <= 0)
763 while ((dev = strsep(&bdev, " ")) != NULL) {
767 (void)OF_getprop(aliases, dev, alias, sizeof(alias));
769 * Don't probe the boot disk twice. Note that bootpath
770 * includes the partition specifier.
772 if (strncmp(alias, bootpath, strlen(alias)) == 0)
774 if (OF_getprop(OF_finddevice(alias), "device_type", type,
777 if (strcmp(type, "block") != 0)
780 /* Find freebsd-zfs slices in the VTOC. */
781 fd = open(alias, O_RDONLY);
784 lseek(fd, 0, SEEK_SET);
785 if (read(fd, &vtoc, sizeof(vtoc)) != sizeof(vtoc)) {
791 for (part = 0; part < 8; part++) {
792 if (part == 2 || vtoc.part[part].tag !=
793 VTOC_TAG_FREEBSD_ZFS)
795 (void)sprintf(devname, "%s:%c", alias, part + 'a');
796 if (zfs_probe_dev(devname, NULL) == ENXIO)
804 zfs_currdev.pool_guid = guid;
805 zfs_currdev.root_guid = 0;
806 zfs_currdev.d_dev = &zfs_dev;
807 zfs_currdev.d_type = zfs_currdev.d_dev->dv_type;
808 (void)strncpy(bootpath, zfs_fmtdev(&zfs_currdev),
809 sizeof(bootpath) - 1);
810 bootpath[sizeof(bootpath) - 1] = '\0';
813 #endif /* LOADER_ZFS_SUPPORT */
816 main(int (*openfirm)(void *))
822 * Tell the Open Firmware functions where they find the OFW gate.
826 archsw.arch_getdev = ofw_getdev;
827 archsw.arch_copyin = sparc64_copyin;
828 archsw.arch_copyout = ofw_copyout;
829 archsw.arch_readin = sparc64_readin;
830 archsw.arch_autoload = sparc64_autoload;
831 #ifdef LOADER_ZFS_SUPPORT
832 archsw.arch_zfs_probe = sparc64_zfs_probe;
835 if (init_heap() == (vm_offset_t)-1)
837 setheap((void *)heapva, (void *)(heapva + HEAPSZ));
840 * Probe for a console.
844 if ((root = OF_peer(0)) == -1)
845 panic("%s: can't get root phandle", __func__);
846 OF_getprop(root, "compatible", compatible, sizeof(compatible));
847 mmu_ops = &mmu_ops_sun4u;
852 * Set up the current device.
854 OF_getprop(chosen, "bootpath", bootpath, sizeof(bootpath));
857 * Sun compatible bootable CD-ROMs have a disk label placed
858 * before the cd9660 data, with the actual filesystem being
859 * in the first partition, while the other partitions contain
860 * pseudo disk labels with embedded boot blocks for different
861 * architectures, which may be followed by UFS filesystems.
862 * The firmware will set the boot path to the partition it
863 * boots from ('f' in the sun4u case), but we want the kernel
864 * to be loaded from the cd9660 fs ('a'), so the boot path
865 * needs to be altered.
867 if (bootpath[strlen(bootpath) - 2] == ':' &&
868 bootpath[strlen(bootpath) - 1] == 'f' &&
869 strstr(bootpath, "cdrom") != NULL) {
870 bootpath[strlen(bootpath) - 1] = 'a';
871 printf("Boot path set to %s\n", bootpath);
875 * Initialize devices.
877 for (dp = devsw; *dp != 0; dp++)
878 if ((*dp)->dv_init != 0)
882 * Now that sparc64_zfs_probe() might have altered bootpath,
885 env_setenv("currdev", EV_VOLATILE, bootpath,
886 ofw_setcurrdev, env_nounset);
887 env_setenv("loaddev", EV_VOLATILE, bootpath,
888 env_noset, env_nounset);
891 printf("%s, Revision %s\n", bootprog_name, bootprog_rev);
892 printf("(%s, %s)\n", bootprog_maker, bootprog_date);
893 printf("bootpath=\"%s\"\n", bootpath);
895 /* Give control to the machine independent loader code. */
900 COMMAND_SET(heap, "heap", "show heap usage", command_heap);
903 command_heap(int argc, char *argv[])
907 printf("heap base at %p, top at %p, upper limit at %p\n", heapva,
908 sbrk(0), heapva + HEAPSZ);
912 COMMAND_SET(reboot, "reboot", "reboot the system", command_reboot);
915 command_reboot(int argc, char *argv[])
919 for (i = 0; devsw[i] != NULL; ++i)
920 if (devsw[i]->dv_cleanup != NULL)
921 (devsw[i]->dv_cleanup)();
923 printf("Rebooting...\n");
927 /* provide this for panic, as it's not in the startup code */
936 static const char *const page_sizes[] = {
937 " 8k", " 64k", "512k", " 4m"
941 pmap_print_tte_sun4u(tte_t tag, tte_t tte)
945 page_sizes[(tte >> TD_SIZE_SHIFT) & TD_SIZE_MASK],
946 tag & TD_G ? "G" : " ");
947 printf(tte & TD_W ? "W " : " ");
948 printf(tte & TD_P ? "\e[33mP\e[0m " : " ");
949 printf(tte & TD_E ? "E " : " ");
950 printf(tte & TD_CV ? "CV " : " ");
951 printf(tte & TD_CP ? "CP " : " ");
952 printf(tte & TD_L ? "\e[32mL\e[0m " : " ");
953 printf(tte & TD_IE ? "IE " : " ");
954 printf(tte & TD_NFO ? "NFO " : " ");
955 printf("pa=0x%lx va=0x%lx ctx=%ld\n",
956 TD_PA(tte), TLB_TAR_VA(tag), TLB_TAR_CTX(tag));
960 pmap_print_tlb_sun4u(void)
966 pstate = rdpr(pstate);
967 for (i = 0; i < itlb_slot_max; i++) {
968 wrpr(pstate, pstate & ~PSTATE_IE, 0);
969 tte = itlb_get_data_sun4u(tlb_locked, i);
970 wrpr(pstate, pstate, 0);
973 tag = ldxa(TLB_DAR_SLOT(tlb_locked, i),
974 ASI_ITLB_TAG_READ_REG);
975 printf("iTLB-%2u: ", i);
976 pmap_print_tte_sun4u(tag, tte);
978 for (i = 0; i < dtlb_slot_max; i++) {
979 wrpr(pstate, pstate & ~PSTATE_IE, 0);
980 tte = dtlb_get_data_sun4u(tlb_locked, i);
981 wrpr(pstate, pstate, 0);
984 tag = ldxa(TLB_DAR_SLOT(tlb_locked, i),
985 ASI_DTLB_TAG_READ_REG);
986 printf("dTLB-%2u: ", i);
987 pmap_print_tte_sun4u(tag, tte);