1*15be954bSuebayasi /* $OpenBSD: machdep.c,v 1.158 2014/07/10 13:34:32 uebayasi Exp $ */ 22a2685f2Sart /* $NetBSD: machdep.c,v 1.210 2000/06/01 17:12:38 thorpej Exp $ */ 3aed035abSart 4aed035abSart /*- 5aed035abSart * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc. 6aed035abSart * All rights reserved. 7aed035abSart * 8aed035abSart * This code is derived from software contributed to The NetBSD Foundation 9aed035abSart * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 10aed035abSart * NASA Ames Research Center and by Chris G. Demetriou. 11aed035abSart * 12aed035abSart * Redistribution and use in source and binary forms, with or without 13aed035abSart * modification, are permitted provided that the following conditions 14aed035abSart * are met: 15aed035abSart * 1. Redistributions of source code must retain the above copyright 16aed035abSart * notice, this list of conditions and the following disclaimer. 17aed035abSart * 2. Redistributions in binary form must reproduce the above copyright 18aed035abSart * notice, this list of conditions and the following disclaimer in the 19aed035abSart * documentation and/or other materials provided with the distribution. 20aed035abSart * 21aed035abSart * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22aed035abSart * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23aed035abSart * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24aed035abSart * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25aed035abSart * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26aed035abSart * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27aed035abSart * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28aed035abSart * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29aed035abSart * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30aed035abSart * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31aed035abSart * POSSIBILITY OF SUCH DAMAGE. 32aed035abSart */ 33df930be7Sderaadt 34df930be7Sderaadt /* 35417eba8cSderaadt * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University. 36df930be7Sderaadt * All rights reserved. 37df930be7Sderaadt * 38df930be7Sderaadt * Author: Chris G. Demetriou 39df930be7Sderaadt * 40df930be7Sderaadt * Permission to use, copy, modify and distribute this software and 41df930be7Sderaadt * its documentation is hereby granted, provided that both the copyright 42df930be7Sderaadt * notice and this permission notice appear in all copies of the 43df930be7Sderaadt * software, derivative works or modified versions, and any portions 44df930be7Sderaadt * thereof, and that both notices appear in supporting documentation. 45df930be7Sderaadt * 46df930be7Sderaadt * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 47df930be7Sderaadt * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 48df930be7Sderaadt * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 49df930be7Sderaadt * 50df930be7Sderaadt * Carnegie Mellon requests users of this software to return to 51df930be7Sderaadt * 52df930be7Sderaadt * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 53df930be7Sderaadt * School of Computer Science 54df930be7Sderaadt * Carnegie Mellon University 55df930be7Sderaadt * Pittsburgh PA 15213-3890 56df930be7Sderaadt * 57df930be7Sderaadt * any improvements or extensions that they make and grant Carnegie the 58df930be7Sderaadt * rights to redistribute these changes. 59df930be7Sderaadt */ 60df930be7Sderaadt 61df930be7Sderaadt #include <sys/param.h> 62df930be7Sderaadt #include <sys/systm.h> 63df930be7Sderaadt #include <sys/signalvar.h> 64df930be7Sderaadt #include <sys/kernel.h> 65df930be7Sderaadt #include <sys/proc.h> 667d9ca166Sderaadt #include <sys/socket.h> 672a2685f2Sart #include <sys/sched.h> 68df930be7Sderaadt #include <sys/buf.h> 69df930be7Sderaadt #include <sys/reboot.h> 70417eba8cSderaadt #include <sys/device.h> 71df930be7Sderaadt #include <sys/conf.h> 72df930be7Sderaadt #include <sys/file.h> 73d66eba84Sart #include <sys/timeout.h> 74df930be7Sderaadt #include <sys/malloc.h> 75df930be7Sderaadt #include <sys/mbuf.h> 76df930be7Sderaadt #include <sys/msgbuf.h> 77df930be7Sderaadt #include <sys/ioctl.h> 78df930be7Sderaadt #include <sys/tty.h> 79df930be7Sderaadt #include <sys/user.h> 80df930be7Sderaadt #include <sys/exec.h> 81df930be7Sderaadt #include <sys/sysctl.h> 8250ce9ee0Sniklas #include <sys/core.h> 8350ce9ee0Sniklas #include <sys/kcore.h> 847d9ca166Sderaadt 857d9ca166Sderaadt #include <net/if.h> 867d9ca166Sderaadt #include <uvm/uvm.h> 877d9ca166Sderaadt 8850ce9ee0Sniklas #include <machine/kcore.h> 89433075b6Spvalchev #ifndef NO_IEEE 90433075b6Spvalchev #include <machine/fpu.h> 91433075b6Spvalchev #endif 921f87e7b7Sart #include <sys/timetc.h> 93df930be7Sderaadt 94df930be7Sderaadt #include <sys/mount.h> 95df930be7Sderaadt #include <sys/syscallargs.h> 96df930be7Sderaadt 97df930be7Sderaadt #include <dev/cons.h> 98df930be7Sderaadt 9950ce9ee0Sniklas #include <machine/autoconf.h> 100df930be7Sderaadt #include <machine/cpu.h> 101df930be7Sderaadt #include <machine/reg.h> 102df930be7Sderaadt #include <machine/rpb.h> 103df930be7Sderaadt #include <machine/prom.h> 1043a630e3fSniklas #include <machine/cpuconf.h> 105433075b6Spvalchev #ifndef NO_IEEE 106433075b6Spvalchev #include <machine/ieeefp.h> 107433075b6Spvalchev #endif 108df930be7Sderaadt 10945e5a1a0Sart #include <dev/pci/pcivar.h> 11045e5a1a0Sart 11112f8bbedSniklas #ifdef DDB 11212f8bbedSniklas #include <machine/db_machdep.h> 11312f8bbedSniklas #include <ddb/db_extern.h> 11421c23d01Smiod #include <ddb/db_interface.h> 11512f8bbedSniklas #endif 11612f8bbedSniklas 117a072164aSmiod #include "ioasic.h" 118a072164aSmiod 119a072164aSmiod #if NIOASIC > 0 120a072164aSmiod #include <machine/tc_machdep.h> 121a072164aSmiod #include <dev/tc/tcreg.h> 122a072164aSmiod #include <dev/tc/ioasicvar.h> 123a072164aSmiod #endif 124a072164aSmiod 125c4071fd1Smillert int cpu_dump(void); 126c4071fd1Smillert int cpu_dumpsize(void); 127c4071fd1Smillert u_long cpu_dump_mempagecnt(void); 128c4071fd1Smillert void dumpsys(void); 129c4071fd1Smillert void identifycpu(void); 130c4071fd1Smillert void regdump(struct trapframe *framep); 131c4071fd1Smillert void printregs(struct reg *); 132df930be7Sderaadt 133b426ab7bSthib struct uvm_constraint_range isa_constraint = { 0x0, 0x00ffffffUL }; 134b426ab7bSthib struct uvm_constraint_range dma_constraint = { 0x0, (paddr_t)-1 }; 135b426ab7bSthib struct uvm_constraint_range *uvm_md_constraints[] = { 136b426ab7bSthib &isa_constraint, 137b426ab7bSthib NULL 138b426ab7bSthib }; 139b426ab7bSthib 140ab8e80c5Sart struct vm_map *exec_map = NULL; 141ab8e80c5Sart struct vm_map *phys_map = NULL; 142aed035abSart 143c72644a3Sderaadt /* 144c72644a3Sderaadt * safepri is a safe priority for sleep to set for a spin-wait 145c72644a3Sderaadt * during autoconfiguration or after a panic. 146c72644a3Sderaadt */ 147c72644a3Sderaadt int safepri = 0; 148c72644a3Sderaadt 14927626149Smatthieu #ifdef APERTURE 15027626149Smatthieu #ifdef INSECURE 15127626149Smatthieu int allowaperture = 1; 15227626149Smatthieu #else 15327626149Smatthieu int allowaperture = 0; 15427626149Smatthieu #endif 15527626149Smatthieu #endif 15627626149Smatthieu 157df930be7Sderaadt int totalphysmem; /* total amount of physical memory in system */ 15874652a67Sniklas int physmem; /* physical mem used by OpenBSD + some rsvd */ 159df930be7Sderaadt int resvmem; /* amount of memory reserved for PROM */ 160df930be7Sderaadt int unusedmem; /* amount of memory for OS that we don't use */ 161df930be7Sderaadt int unknownmem; /* amount of memory with an unknown use */ 162df930be7Sderaadt 163df930be7Sderaadt int cputype; /* system type, from the RPB */ 164df930be7Sderaadt 1652a2685f2Sart int bootdev_debug = 0; /* patchable, or from DDB */ 1662a2685f2Sart 167df930be7Sderaadt /* the following is used externally (sysctl_hw) */ 168aed035abSart char machine[] = MACHINE; /* from <machine/param.h> */ 169417eba8cSderaadt char cpu_model[128]; 170df930be7Sderaadt 171df930be7Sderaadt struct user *proc0paddr; 172df930be7Sderaadt 173df930be7Sderaadt /* Number of machine cycles per microsecond */ 174df930be7Sderaadt u_int64_t cycles_per_usec; 175df930be7Sderaadt 176aed035abSart struct bootinfo_kernel bootinfo; 177aed035abSart 178b1560ceaSmiod struct consdev *cn_tab; 179b1560ceaSmiod 180aed035abSart /* For built-in TCDS */ 181aed035abSart #if defined(DEC_3000_300) || defined(DEC_3000_500) 182aed035abSart u_int8_t dec_3000_scsiid[2], dec_3000_scsifast[2]; 183aed035abSart #endif 184aed035abSart 185aed035abSart struct platform platform; 186417eba8cSderaadt 187417eba8cSderaadt /* for cpu_sysctl() */ 18850ce9ee0Sniklas int alpha_unaligned_print = 1; /* warn about unaligned accesses */ 18950ce9ee0Sniklas int alpha_unaligned_fix = 1; /* fix up unaligned accesses */ 190881c1eabSart int alpha_unaligned_sigbus = 1; /* SIGBUS on fixed-up accesses */ 191433075b6Spvalchev #ifndef NO_IEEE 192433075b6Spvalchev int alpha_fp_sync_complete = 0; /* fp fixup if sync even without /s */ 193433075b6Spvalchev #endif 194a072164aSmiod #if NIOASIC > 0 19591c0e687Sderaadt int alpha_led_blink = 1; 196a072164aSmiod #endif 19750ce9ee0Sniklas 198b3cee53eSmartin /* used by hw_sysctl */ 199b3cee53eSmartin extern char *hw_serial; 200b3cee53eSmartin 201aed035abSart /* 202aed035abSart * XXX This should be dynamically sized, but we have the chicken-egg problem! 203aed035abSart * XXX it should also be larger than it is, because not all of the mddt 204aed035abSart * XXX clusters end up being used for VM. 205aed035abSart */ 206aed035abSart phys_ram_seg_t mem_clusters[VM_PHYSSEG_MAX]; /* low size bits overloaded */ 207aed035abSart int mem_cluster_cnt; 208aed035abSart 2093a630e3fSniklas void 210dd3e8537Smiod alpha_init(unused, ptb, bim, bip, biv) 211dd3e8537Smiod u_long unused; 212df930be7Sderaadt u_long ptb; /* PFN of current level 1 page table */ 213aed035abSart u_long bim; /* bootinfo magic */ 214aed035abSart u_long bip; /* bootinfo pointer */ 215aed035abSart u_long biv; /* bootinfo version */ 216df930be7Sderaadt { 217aed035abSart extern char kernel_text[], _end[]; 218df930be7Sderaadt struct mddt *mddtp; 219aed035abSart struct mddt_cluster *memc; 220df930be7Sderaadt int i, mddtweird; 221aed035abSart struct vm_physseg *vps; 222aed035abSart vaddr_t kernstart, kernend; 223aed035abSart paddr_t kernstartpfn, kernendpfn, pfn0, pfn1; 224df930be7Sderaadt char *p; 2252a2685f2Sart const char *bootinfo_msg; 226aed035abSart const struct cpuinit *c; 227aed035abSart extern caddr_t esym; 228aed035abSart struct cpu_info *ci; 229aed035abSart cpuid_t cpu_id; 230df930be7Sderaadt 231aed035abSart /* NO OUTPUT ALLOWED UNTIL FURTHER NOTICE */ 232f3914c62Sniklas 233df930be7Sderaadt /* 234aed035abSart * Turn off interrupts (not mchecks) and floating point. 235df930be7Sderaadt * Make sure the instruction and data streams are consistent. 236df930be7Sderaadt */ 237aed035abSart (void)alpha_pal_swpipl(ALPHA_PSL_IPL_HIGH); 23850ce9ee0Sniklas alpha_pal_wrfen(0); 23950ce9ee0Sniklas ALPHA_TBIA(); 24050ce9ee0Sniklas alpha_pal_imb(); 241df930be7Sderaadt 242c62181b1Sbrad /* Initialize the SCB. */ 243c62181b1Sbrad scb_init(); 244c62181b1Sbrad 245aed035abSart cpu_id = cpu_number(); 246aed035abSart 247aed035abSart #if defined(MULTIPROCESSOR) 248df930be7Sderaadt /* 249aed035abSart * Set our SysValue to the address of our cpu_info structure. 250aed035abSart * Secondary processors do this in their spinup trampoline. 251df930be7Sderaadt */ 25221c23d01Smiod alpha_pal_wrval((u_long)&cpu_info_primary); 25321c23d01Smiod cpu_info[cpu_id] = &cpu_info_primary; 254aed035abSart #endif 255aed035abSart 256aed035abSart ci = curcpu(); 257aed035abSart ci->ci_cpuid = cpu_id; 258aed035abSart 259aed035abSart /* 260aed035abSart * Get critical system information (if possible, from the 261aed035abSart * information provided by the boot program). 262aed035abSart */ 263aed035abSart bootinfo_msg = NULL; 264aed035abSart if (bim == BOOTINFO_MAGIC) { 265aed035abSart if (biv == 0) { /* backward compat */ 266aed035abSart biv = *(u_long *)bip; 267aed035abSart bip += 8; 268aed035abSart } 269aed035abSart switch (biv) { 270aed035abSart case 1: { 271aed035abSart struct bootinfo_v1 *v1p = (struct bootinfo_v1 *)bip; 272aed035abSart 273aed035abSart bootinfo.ssym = v1p->ssym; 274aed035abSart bootinfo.esym = v1p->esym; 275aed035abSart /* hwrpb may not be provided by boot block in v1 */ 276aed035abSart if (v1p->hwrpb != NULL) { 277aed035abSart bootinfo.hwrpb_phys = 278aed035abSart ((struct rpb *)v1p->hwrpb)->rpb_phys; 279aed035abSart bootinfo.hwrpb_size = v1p->hwrpbsize; 280aed035abSart } else { 281aed035abSart bootinfo.hwrpb_phys = 282aed035abSart ((struct rpb *)HWRPB_ADDR)->rpb_phys; 283aed035abSart bootinfo.hwrpb_size = 284aed035abSart ((struct rpb *)HWRPB_ADDR)->rpb_size; 285aed035abSart } 286aed035abSart bcopy(v1p->boot_flags, bootinfo.boot_flags, 287aed035abSart min(sizeof v1p->boot_flags, 288aed035abSart sizeof bootinfo.boot_flags)); 289aed035abSart bcopy(v1p->booted_kernel, bootinfo.booted_kernel, 290aed035abSart min(sizeof v1p->booted_kernel, 291aed035abSart sizeof bootinfo.booted_kernel)); 292aed035abSart /* booted dev not provided in bootinfo */ 293aed035abSart init_prom_interface((struct rpb *) 294aed035abSart ALPHA_PHYS_TO_K0SEG(bootinfo.hwrpb_phys)); 295aed035abSart prom_getenv(PROM_E_BOOTED_DEV, bootinfo.booted_dev, 296aed035abSart sizeof bootinfo.booted_dev); 297aed035abSart break; 298aed035abSart } 299aed035abSart default: 300aed035abSart bootinfo_msg = "unknown bootinfo version"; 301aed035abSart goto nobootinfo; 302aed035abSart } 303aed035abSart } else { 304aed035abSart bootinfo_msg = "boot program did not pass bootinfo"; 305aed035abSart nobootinfo: 306aed035abSart bootinfo.ssym = (u_long)_end; 307aed035abSart bootinfo.esym = (u_long)_end; 308aed035abSart bootinfo.hwrpb_phys = ((struct rpb *)HWRPB_ADDR)->rpb_phys; 309aed035abSart bootinfo.hwrpb_size = ((struct rpb *)HWRPB_ADDR)->rpb_size; 310aed035abSart init_prom_interface((struct rpb *)HWRPB_ADDR); 311aed035abSart prom_getenv(PROM_E_BOOTED_OSFLAGS, bootinfo.boot_flags, 312aed035abSart sizeof bootinfo.boot_flags); 313aed035abSart prom_getenv(PROM_E_BOOTED_FILE, bootinfo.booted_kernel, 314aed035abSart sizeof bootinfo.booted_kernel); 315aed035abSart prom_getenv(PROM_E_BOOTED_DEV, bootinfo.booted_dev, 316aed035abSart sizeof bootinfo.booted_dev); 317aed035abSart } 318aed035abSart 319aed035abSart esym = (caddr_t)bootinfo.esym; 320aed035abSart /* 321aed035abSart * Initialize the kernel's mapping of the RPB. It's needed for 322aed035abSart * lots of things. 323aed035abSart */ 324aed035abSart hwrpb = (struct rpb *)ALPHA_PHYS_TO_K0SEG(bootinfo.hwrpb_phys); 325aed035abSart 326aed035abSart #if defined(DEC_3000_300) || defined(DEC_3000_500) 327aed035abSart if (hwrpb->rpb_type == ST_DEC_3000_300 || 328aed035abSart hwrpb->rpb_type == ST_DEC_3000_500) { 329aed035abSart prom_getenv(PROM_E_SCSIID, dec_3000_scsiid, 330aed035abSart sizeof(dec_3000_scsiid)); 331aed035abSart prom_getenv(PROM_E_SCSIFAST, dec_3000_scsifast, 332aed035abSart sizeof(dec_3000_scsifast)); 333aed035abSart } 334aed035abSart #endif 335df930be7Sderaadt 336df930be7Sderaadt /* 337df930be7Sderaadt * Remember how many cycles there are per microsecond, 338df930be7Sderaadt * so that we can use delay(). Round up, for safety. 339df930be7Sderaadt */ 340df930be7Sderaadt cycles_per_usec = (hwrpb->rpb_cc_freq + 999999) / 1000000; 341df930be7Sderaadt 342df930be7Sderaadt /* 3439e71c994Saaron * Initialize the (temporary) bootstrap console interface, so 344aed035abSart * we can use printf until the VM system starts being setup. 345aed035abSart * The real console is initialized before then. 346df930be7Sderaadt */ 347aed035abSart init_bootstrap_console(); 348aed035abSart 349aed035abSart /* OUTPUT NOW ALLOWED */ 350aed035abSart 351aed035abSart /* delayed from above */ 352aed035abSart if (bootinfo_msg) 353aed035abSart printf("WARNING: %s (0x%lx, 0x%lx, 0x%lx)\n", 354aed035abSart bootinfo_msg, bim, bip, biv); 355aed035abSart 356aed035abSart /* Initialize the trap vectors on the primary processor. */ 357aed035abSart trap_init(); 358df930be7Sderaadt 359df930be7Sderaadt /* 360aed035abSart * Find out what hardware we're on, and do basic initialization. 361df930be7Sderaadt */ 362aed035abSart cputype = hwrpb->rpb_type; 363aed035abSart if (cputype < 0) { 364aed035abSart /* 365aed035abSart * At least some white-box systems have SRM which 366aed035abSart * reports a systype that's the negative of their 367aed035abSart * blue-box counterpart. 368aed035abSart */ 369aed035abSart cputype = -cputype; 370aed035abSart } 371aed035abSart c = platform_lookup(cputype); 372aed035abSart if (c == NULL) { 373aed035abSart platform_not_supported(); 374aed035abSart /* NOTREACHED */ 375aed035abSart } 376aed035abSart (*c->init)(); 377094fa01fSderaadt strlcpy(cpu_model, platform.model, sizeof cpu_model); 37850ce9ee0Sniklas 37950ce9ee0Sniklas /* 3809e71c994Saaron * Initialize the real console, so that the bootstrap console is 381aed035abSart * no longer necessary. 38250ce9ee0Sniklas */ 383aed035abSart (*platform.cons_init)(); 384aed035abSart 385a55851f4Sderaadt #if 0 386aed035abSart /* Paranoid sanity checking */ 387aed035abSart 388aed035abSart assert(hwrpb->rpb_primary_cpu_id == alpha_pal_whami()); 389aed035abSart 390aed035abSart /* 391aed035abSart * On single-CPU systypes, the primary should always be CPU 0, 392aed035abSart * except on Alpha 8200 systems where the CPU id is related 393aed035abSart * to the VID, which is related to the Turbo Laser node id. 394aed035abSart */ 395aed035abSart if (cputype != ST_DEC_21000) 396aed035abSart assert(hwrpb->rpb_primary_cpu_id == 0); 397aed035abSart #endif 398aed035abSart 399aed035abSart /* NO MORE FIRMWARE ACCESS ALLOWED */ 400aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 401aed035abSart /* 402aed035abSart * XXX (unless _PMAP_MAY_USE_PROM_CONSOLE is defined and 403aed035abSart * XXX pmap_uses_prom_console() evaluates to non-zero.) 404aed035abSart */ 405aed035abSart #endif 406aed035abSart 407cfcdef40Smiod #ifndef SMALL_KERNEL 408cfcdef40Smiod /* 409cfcdef40Smiod * If we run on a BWX-capable processor, override cpu_switch 410cfcdef40Smiod * with a faster version. 411cfcdef40Smiod * We do this now because the kernel text might be mapped 412cfcdef40Smiod * read-only eventually (although this is not the case at the moment). 413cfcdef40Smiod */ 414cfcdef40Smiod if (alpha_implver() >= ALPHA_IMPLVER_EV5) { 415cfcdef40Smiod if (~alpha_amask(ALPHA_AMASK_BWX) != 0) { 416cfcdef40Smiod extern vaddr_t __bwx_switch0, __bwx_switch1, 417cfcdef40Smiod __bwx_switch2, __bwx_switch3; 418cfcdef40Smiod u_int32_t *dst, *src, *end; 419cfcdef40Smiod 420cfcdef40Smiod src = (u_int32_t *)&__bwx_switch2; 421cfcdef40Smiod end = (u_int32_t *)&__bwx_switch3; 422cfcdef40Smiod dst = (u_int32_t *)&__bwx_switch0; 423cfcdef40Smiod while (src != end) 424cfcdef40Smiod *dst++ = *src++; 425cfcdef40Smiod src = (u_int32_t *)&__bwx_switch1; 426cfcdef40Smiod end = (u_int32_t *)&__bwx_switch2; 427cfcdef40Smiod while (src != end) 428cfcdef40Smiod *dst++ = *src++; 429cfcdef40Smiod } 430cfcdef40Smiod } 431cfcdef40Smiod #endif 432cfcdef40Smiod 433aed035abSart /* 434aed035abSart * find out this system's page size 435aed035abSart */ 43673b9fe7cSart if ((uvmexp.pagesize = hwrpb->rpb_page_size) != 8192) 43773b9fe7cSart panic("page size %d != 8192?!", uvmexp.pagesize); 438aed035abSart 439aed035abSart uvm_setpagesize(); 440aed035abSart 441aed035abSart /* 442aed035abSart * Find the beginning and end of the kernel (and leave a 443aed035abSart * bit of space before the beginning for the bootstrap 444aed035abSart * stack). 445aed035abSart */ 446aed035abSart kernstart = trunc_page((vaddr_t)kernel_text) - 2 * PAGE_SIZE; 447aed035abSart kernend = (vaddr_t)round_page((vaddr_t)bootinfo.esym); 448aed035abSart 449aed035abSart kernstartpfn = atop(ALPHA_K0SEG_TO_PHYS(kernstart)); 450aed035abSart kernendpfn = atop(ALPHA_K0SEG_TO_PHYS(kernend)); 451df930be7Sderaadt 452df930be7Sderaadt /* 453df930be7Sderaadt * Find out how much memory is available, by looking at 454df930be7Sderaadt * the memory cluster descriptors. This also tries to do 455df930be7Sderaadt * its best to detect things things that have never been seen 456df930be7Sderaadt * before... 457df930be7Sderaadt */ 458df930be7Sderaadt mddtp = (struct mddt *)(((caddr_t)hwrpb) + hwrpb->rpb_memdat_off); 459df930be7Sderaadt 460aed035abSart /* MDDT SANITY CHECKING */ 461df930be7Sderaadt mddtweird = 0; 462aed035abSart if (mddtp->mddt_cluster_cnt < 2) { 463df930be7Sderaadt mddtweird = 1; 464aed035abSart printf("WARNING: weird number of mem clusters: %lu\n", 465e86d96d5Smiod (unsigned long)mddtp->mddt_cluster_cnt); 466df930be7Sderaadt } 467df930be7Sderaadt 468aed035abSart #if 0 469aed035abSart printf("Memory cluster count: %d\n", mddtp->mddt_cluster_cnt); 470aed035abSart #endif 471df930be7Sderaadt 472aed035abSart for (i = 0; i < mddtp->mddt_cluster_cnt; i++) { 473aed035abSart memc = &mddtp->mddt_clusters[i]; 474aed035abSart #if 0 475aed035abSart printf("MEMC %d: pfn 0x%lx cnt 0x%lx usage 0x%lx\n", i, 476aed035abSart memc->mddt_pfn, memc->mddt_pg_cnt, memc->mddt_usage); 477aed035abSart #endif 478aed035abSart totalphysmem += memc->mddt_pg_cnt; 479aed035abSart if (mem_cluster_cnt < VM_PHYSSEG_MAX) { /* XXX */ 480aed035abSart mem_clusters[mem_cluster_cnt].start = 481aed035abSart ptoa(memc->mddt_pfn); 482aed035abSart mem_clusters[mem_cluster_cnt].size = 483aed035abSart ptoa(memc->mddt_pg_cnt); 484aed035abSart if (memc->mddt_usage & MDDT_mbz || 485aed035abSart memc->mddt_usage & MDDT_NONVOLATILE || /* XXX */ 486aed035abSart memc->mddt_usage & MDDT_PALCODE) 487aed035abSart mem_clusters[mem_cluster_cnt].size |= 488aed035abSart VM_PROT_READ; 489aed035abSart else 490aed035abSart mem_clusters[mem_cluster_cnt].size |= 491aed035abSart VM_PROT_READ | VM_PROT_WRITE | VM_PROT_EXECUTE; 492aed035abSart mem_cluster_cnt++; 493ee2d823aSmiod } /* XXX else print something! */ 494aed035abSart 495aed035abSart if (memc->mddt_usage & MDDT_mbz) { 496aed035abSart mddtweird = 1; 497aed035abSart printf("WARNING: mem cluster %d has weird " 498e86d96d5Smiod "usage 0x%lx\n", i, (long)memc->mddt_usage); 499aed035abSart unknownmem += memc->mddt_pg_cnt; 500aed035abSart continue; 501aed035abSart } 502aed035abSart if (memc->mddt_usage & MDDT_NONVOLATILE) { 503aed035abSart /* XXX should handle these... */ 504aed035abSart printf("WARNING: skipping non-volatile mem " 505aed035abSart "cluster %d\n", i); 506aed035abSart unusedmem += memc->mddt_pg_cnt; 507aed035abSart continue; 508aed035abSart } 509aed035abSart if (memc->mddt_usage & MDDT_PALCODE) { 510aed035abSart resvmem += memc->mddt_pg_cnt; 511aed035abSart continue; 512aed035abSart } 513aed035abSart 514aed035abSart /* 515aed035abSart * We have a memory cluster available for system 516aed035abSart * software use. We must determine if this cluster 517aed035abSart * holds the kernel. 518aed035abSart */ 519aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 520aed035abSart /* 521aed035abSart * XXX If the kernel uses the PROM console, we only use the 522aed035abSart * XXX memory after the kernel in the first system segment, 523aed035abSart * XXX to avoid clobbering prom mapping, data, etc. 524aed035abSart */ 525aed035abSart if (!pmap_uses_prom_console() || physmem == 0) { 526aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 527aed035abSart physmem += memc->mddt_pg_cnt; 528aed035abSart pfn0 = memc->mddt_pfn; 529aed035abSart pfn1 = memc->mddt_pfn + memc->mddt_pg_cnt; 530aed035abSart if (pfn0 <= kernstartpfn && kernendpfn <= pfn1) { 531aed035abSart /* 532aed035abSart * Must compute the location of the kernel 533aed035abSart * within the segment. 534aed035abSart */ 535aed035abSart #if 0 536aed035abSart printf("Cluster %d contains kernel\n", i); 537aed035abSart #endif 538aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 539aed035abSart if (!pmap_uses_prom_console()) { 540aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 541aed035abSart if (pfn0 < kernstartpfn) { 542aed035abSart /* 543aed035abSart * There is a chunk before the kernel. 544aed035abSart */ 545aed035abSart #if 0 546aed035abSart printf("Loading chunk before kernel: " 547aed035abSart "0x%lx / 0x%lx\n", pfn0, kernstartpfn); 548aed035abSart #endif 549aed035abSart uvm_page_physload(pfn0, kernstartpfn, 5502ce3b4a8Soga pfn0, kernstartpfn, 0); 551aed035abSart } 552aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 553aed035abSart } 554aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 555aed035abSart if (kernendpfn < pfn1) { 556aed035abSart /* 557aed035abSart * There is a chunk after the kernel. 558aed035abSart */ 559aed035abSart #if 0 560aed035abSart printf("Loading chunk after kernel: " 561aed035abSart "0x%lx / 0x%lx\n", kernendpfn, pfn1); 562aed035abSart #endif 563aed035abSart uvm_page_physload(kernendpfn, pfn1, 5642ce3b4a8Soga kernendpfn, pfn1, 0); 565aed035abSart } 566aed035abSart } else { 567aed035abSart /* 568aed035abSart * Just load this cluster as one chunk. 569aed035abSart */ 570aed035abSart #if 0 571aed035abSart printf("Loading cluster %d: 0x%lx / 0x%lx\n", i, 572aed035abSart pfn0, pfn1); 573aed035abSart #endif 5742ce3b4a8Soga uvm_page_physload(pfn0, pfn1, pfn0, pfn1, 0); 575aed035abSart } 576aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 577aed035abSart } 578aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 579aed035abSart } 580aed035abSart 581a37778bcSderaadt #ifdef DEBUG 582aed035abSart /* 583aed035abSart * Dump out the MDDT if it looks odd... 584aed035abSart */ 585df930be7Sderaadt if (mddtweird) { 586df930be7Sderaadt printf("\n"); 587df930be7Sderaadt printf("complete memory cluster information:\n"); 588df930be7Sderaadt for (i = 0; i < mddtp->mddt_cluster_cnt; i++) { 589df930be7Sderaadt printf("mddt %d:\n", i); 590df930be7Sderaadt printf("\tpfn %lx\n", 591df930be7Sderaadt mddtp->mddt_clusters[i].mddt_pfn); 592df930be7Sderaadt printf("\tcnt %lx\n", 593df930be7Sderaadt mddtp->mddt_clusters[i].mddt_pg_cnt); 594df930be7Sderaadt printf("\ttest %lx\n", 595df930be7Sderaadt mddtp->mddt_clusters[i].mddt_pg_test); 596df930be7Sderaadt printf("\tbva %lx\n", 597df930be7Sderaadt mddtp->mddt_clusters[i].mddt_v_bitaddr); 598df930be7Sderaadt printf("\tbpa %lx\n", 599df930be7Sderaadt mddtp->mddt_clusters[i].mddt_p_bitaddr); 600df930be7Sderaadt printf("\tbcksum %lx\n", 601df930be7Sderaadt mddtp->mddt_clusters[i].mddt_bit_cksum); 602df930be7Sderaadt printf("\tusage %lx\n", 603df930be7Sderaadt mddtp->mddt_clusters[i].mddt_usage); 604df930be7Sderaadt } 605df930be7Sderaadt printf("\n"); 606df930be7Sderaadt } 607a37778bcSderaadt #endif 608df930be7Sderaadt 609df930be7Sderaadt if (totalphysmem == 0) 610df930be7Sderaadt panic("can't happen: system seems to have no memory!"); 611df930be7Sderaadt #if 0 612f46637d1Sderaadt printf("totalphysmem = %u\n", totalphysmem); 613f46637d1Sderaadt printf("physmem = %u\n", physmem); 614df930be7Sderaadt printf("resvmem = %d\n", resvmem); 615df930be7Sderaadt printf("unusedmem = %d\n", unusedmem); 616df930be7Sderaadt printf("unknownmem = %d\n", unknownmem); 617df930be7Sderaadt #endif 618df930be7Sderaadt 619df930be7Sderaadt /* 620aed035abSart * Initialize error message buffer (at end of core). 621df930be7Sderaadt */ 622aed035abSart { 623aed035abSart vsize_t sz = (vsize_t)round_page(MSGBUFSIZE); 624aed035abSart vsize_t reqsz = sz; 625df930be7Sderaadt 626aed035abSart vps = &vm_physmem[vm_nphysseg - 1]; 627e1da84e1Salex 628aed035abSart /* shrink so that it'll fit in the last segment */ 629aed035abSart if ((vps->avail_end - vps->avail_start) < atop(sz)) 630aed035abSart sz = ptoa(vps->avail_end - vps->avail_start); 631aed035abSart 632aed035abSart vps->end -= atop(sz); 633aed035abSart vps->avail_end -= atop(sz); 634aed035abSart initmsgbuf((caddr_t) ALPHA_PHYS_TO_K0SEG(ptoa(vps->end)), sz); 635aed035abSart 636aed035abSart /* Remove the last segment if it now has no pages. */ 637aed035abSart if (vps->start == vps->end) 638aed035abSart vm_nphysseg--; 639aed035abSart 640aed035abSart /* warn if the message buffer had to be shrunk */ 641aed035abSart if (sz != reqsz) 642aed035abSart printf("WARNING: %ld bytes not available for msgbuf " 643aed035abSart "in last cluster (%ld used)\n", reqsz, sz); 644aed035abSart 645aed035abSart } 646aed035abSart 647df930be7Sderaadt /* 648df930be7Sderaadt * Init mapping for u page(s) for proc 0 649df930be7Sderaadt */ 650aed035abSart proc0.p_addr = proc0paddr = 651aed035abSart (struct user *)pmap_steal_memory(UPAGES * PAGE_SIZE, NULL, NULL); 652df930be7Sderaadt 653df930be7Sderaadt /* 654df930be7Sderaadt * Initialize the virtual memory system, and set the 655df930be7Sderaadt * page table base register in proc 0's PCB. 656df930be7Sderaadt */ 657aed035abSart pmap_bootstrap(ALPHA_PHYS_TO_K0SEG(ptb << PGSHIFT), 658aed035abSart hwrpb->rpb_max_asn, hwrpb->rpb_pcs_cnt); 659df930be7Sderaadt 660df930be7Sderaadt /* 661df930be7Sderaadt * Initialize the rest of proc 0's PCB, and cache its physical 662df930be7Sderaadt * address. 663df930be7Sderaadt */ 664df930be7Sderaadt proc0.p_md.md_pcbpaddr = 665aed035abSart (struct pcb *)ALPHA_K0SEG_TO_PHYS((vaddr_t)&proc0paddr->u_pcb); 666df930be7Sderaadt 667df930be7Sderaadt /* 668df930be7Sderaadt * Set the kernel sp, reserving space for an (empty) trapframe, 669df930be7Sderaadt * and make proc0's trapframe pointer point to it for sanity. 670df930be7Sderaadt */ 67150ce9ee0Sniklas proc0paddr->u_pcb.pcb_hw.apcb_ksp = 672df930be7Sderaadt (u_int64_t)proc0paddr + USPACE - sizeof(struct trapframe); 67374652a67Sniklas proc0.p_md.md_tf = 67474652a67Sniklas (struct trapframe *)proc0paddr->u_pcb.pcb_hw.apcb_ksp; 67550ce9ee0Sniklas 676aed035abSart /* 677aed035abSart * Initialize the primary CPU's idle PCB to proc0's. In a 678aed035abSart * MULTIPROCESSOR configuration, each CPU will later get 679aed035abSart * its own idle PCB when autoconfiguration runs. 680aed035abSart */ 681aed035abSart ci->ci_idle_pcb = &proc0paddr->u_pcb; 682aed035abSart ci->ci_idle_pcb_paddr = (u_long)proc0.p_md.md_pcbpaddr; 683df930be7Sderaadt 684df930be7Sderaadt /* 685df930be7Sderaadt * Look at arguments passed to us and compute boothowto. 686df930be7Sderaadt */ 687417eba8cSderaadt 688df930be7Sderaadt #ifdef KADB 689df930be7Sderaadt boothowto |= RB_KDB; 690df930be7Sderaadt #endif 691aed035abSart for (p = bootinfo.boot_flags; p && *p != '\0'; p++) { 692417eba8cSderaadt /* 693417eba8cSderaadt * Note that we'd really like to differentiate case here, 694417eba8cSderaadt * but the Alpha AXP Architecture Reference Manual 695417eba8cSderaadt * says that we shouldn't. 696417eba8cSderaadt */ 697df930be7Sderaadt switch (*p) { 698371c77f5Smartin case 'a': /* Ignore */ 699417eba8cSderaadt case 'A': 700df930be7Sderaadt break; 701df930be7Sderaadt 70212f8bbedSniklas case 'b': /* Enter DDB as soon as the console is initialised */ 70312f8bbedSniklas case 'B': 70412f8bbedSniklas boothowto |= RB_KDB; 70512f8bbedSniklas break; 70612f8bbedSniklas 70750ce9ee0Sniklas case 'c': /* enter user kernel configuration */ 70850ce9ee0Sniklas case 'C': 70950ce9ee0Sniklas boothowto |= RB_CONFIG; 71050ce9ee0Sniklas break; 71150ce9ee0Sniklas 71250ce9ee0Sniklas #ifdef DEBUG 71350ce9ee0Sniklas case 'd': /* crash dump immediately after autoconfig */ 71450ce9ee0Sniklas case 'D': 71550ce9ee0Sniklas boothowto |= RB_DUMP; 71650ce9ee0Sniklas break; 71750ce9ee0Sniklas #endif 71850ce9ee0Sniklas 71950ce9ee0Sniklas case 'h': /* always halt, never reboot */ 72050ce9ee0Sniklas case 'H': 72150ce9ee0Sniklas boothowto |= RB_HALT; 722df930be7Sderaadt break; 723df930be7Sderaadt 724417eba8cSderaadt #if 0 725417eba8cSderaadt case 'm': /* mini root present in memory */ 726417eba8cSderaadt case 'M': 727417eba8cSderaadt boothowto |= RB_MINIROOT; 728417eba8cSderaadt break; 729417eba8cSderaadt #endif 73050ce9ee0Sniklas 73150ce9ee0Sniklas case 'n': /* askname */ 73250ce9ee0Sniklas case 'N': 73350ce9ee0Sniklas boothowto |= RB_ASKNAME; 73450ce9ee0Sniklas break; 735aed035abSart 736371c77f5Smartin case 's': /* single-user */ 737aed035abSart case 'S': 738aed035abSart boothowto |= RB_SINGLE; 739aed035abSart break; 740aed035abSart 741aed035abSart case '-': 742aed035abSart /* 743aed035abSart * Just ignore this. It's not required, but it's 744aed035abSart * common for it to be passed regardless. 745aed035abSart */ 746aed035abSart break; 747aed035abSart 748aed035abSart default: 749aed035abSart printf("Unrecognized boot flag '%c'.\n", *p); 750aed035abSart break; 751df930be7Sderaadt } 752df930be7Sderaadt } 753df930be7Sderaadt 754aed035abSart 755df930be7Sderaadt /* 756df930be7Sderaadt * Figure out the number of cpus in the box, from RPB fields. 757df930be7Sderaadt * Really. We mean it. 758df930be7Sderaadt */ 75931326ec3Smiod for (ncpusfound = 0, i = 0; i < hwrpb->rpb_pcs_cnt; i++) { 760df930be7Sderaadt struct pcs *pcsp; 761df930be7Sderaadt 762aed035abSart pcsp = LOCATE_PCS(hwrpb, i); 763df930be7Sderaadt if ((pcsp->pcs_flags & PCS_PP) != 0) 76431326ec3Smiod ncpusfound++; 765df930be7Sderaadt } 766aed035abSart 767aed035abSart /* 768aed035abSart * Initialize debuggers, and break into them if appropriate. 769aed035abSart */ 770aed035abSart #ifdef DDB 77121c23d01Smiod db_machine_init(); 772aed035abSart ddb_init(); 773aed035abSart 774aed035abSart if (boothowto & RB_KDB) 775aed035abSart Debugger(); 776aed035abSart #endif 777aed035abSart #ifdef KGDB 778aed035abSart if (boothowto & RB_KDB) 779aed035abSart kgdb_connect(0); 780aed035abSart #endif 781aed035abSart /* 782aed035abSart * Figure out our clock frequency, from RPB fields. 783aed035abSart */ 784aed035abSart hz = hwrpb->rpb_intr_freq >> 12; 785aed035abSart if (!(60 <= hz && hz <= 10240)) { 786aed035abSart #ifdef DIAGNOSTIC 787e86d96d5Smiod printf("WARNING: unbelievable rpb_intr_freq: %lu (%d hz)\n", 788e86d96d5Smiod (unsigned long)hwrpb->rpb_intr_freq, hz); 789aed035abSart #endif 790dd3e8537Smiod hz = 1024; 791aed035abSart } 792aed035abSart } 793aed035abSart 794417eba8cSderaadt void 795df930be7Sderaadt consinit() 796df930be7Sderaadt { 797aed035abSart 798aed035abSart /* 799aed035abSart * Everything related to console initialization is done 800aed035abSart * in alpha_init(). 801aed035abSart */ 802aed035abSart #if defined(DIAGNOSTIC) && defined(_PMAP_MAY_USE_PROM_CONSOLE) 803aed035abSart printf("consinit: %susing prom console\n", 804aed035abSart pmap_uses_prom_console() ? "" : "not "); 80512f8bbedSniklas #endif 806df930be7Sderaadt } 807df930be7Sderaadt 808417eba8cSderaadt void 809df930be7Sderaadt cpu_startup() 810df930be7Sderaadt { 811aed035abSart vaddr_t minaddr, maxaddr; 81250ce9ee0Sniklas #if defined(DEBUG) 813df930be7Sderaadt extern int pmapdebug; 814df930be7Sderaadt int opmapdebug = pmapdebug; 815df930be7Sderaadt 816df930be7Sderaadt pmapdebug = 0; 817df930be7Sderaadt #endif 818df930be7Sderaadt 819df930be7Sderaadt /* 820df930be7Sderaadt * Good {morning,afternoon,evening,night}. 821df930be7Sderaadt */ 822df930be7Sderaadt printf(version); 823df930be7Sderaadt identifycpu(); 824701cd583Smiod printf("real mem = %lu (%luMB)\n", ptoa((psize_t)totalphysmem), 825701cd583Smiod ptoa((psize_t)totalphysmem) / 1024 / 1024); 826701cd583Smiod printf("rsvd mem = %lu (%luMB)\n", ptoa((psize_t)resvmem), 827701cd583Smiod ptoa((psize_t)resvmem) / 1024 / 1024); 828aed035abSart if (unusedmem) { 829701cd583Smiod printf("WARNING: unused memory = %lu (%luMB)\n", 830701cd583Smiod ptoa((psize_t)unusedmem), 831701cd583Smiod ptoa((psize_t)unusedmem) / 1024 / 1024); 832aed035abSart } 833aed035abSart if (unknownmem) { 834701cd583Smiod printf("WARNING: %lu (%luMB) of memory with unknown purpose\n", 835701cd583Smiod ptoa((psize_t)unknownmem), 836701cd583Smiod ptoa((psize_t)unknownmem) / 1024 / 1024); 837aed035abSart } 838df930be7Sderaadt 839df930be7Sderaadt /* 840df930be7Sderaadt * Allocate a submap for exec arguments. This map effectively 841df930be7Sderaadt * limits the number of processes exec'ing at any time. 842df930be7Sderaadt */ 8437c10a71dSdrahn minaddr = vm_map_min(kernel_map); 844aed035abSart exec_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 845aed035abSart 16 * NCARGS, VM_MAP_PAGEABLE, FALSE, NULL); 846df930be7Sderaadt 847df930be7Sderaadt /* 848df930be7Sderaadt * Allocate a submap for physio 849df930be7Sderaadt */ 850aed035abSart phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 851aed035abSart VM_PHYS_SIZE, 0, FALSE, NULL); 852df930be7Sderaadt 85350ce9ee0Sniklas #if defined(DEBUG) 854df930be7Sderaadt pmapdebug = opmapdebug; 855df930be7Sderaadt #endif 856701cd583Smiod printf("avail mem = %lu (%luMB)\n", ptoa((psize_t)uvmexp.free), 857701cd583Smiod ptoa((psize_t)uvmexp.free) / 1024 / 1024); 858aed035abSart #if 0 859aed035abSart { 860aed035abSart extern u_long pmap_pages_stolen; 861aed035abSart 862aed035abSart printf("stolen memory for VM structures = %d\n", pmap_pages_stolen * PAGE_SIZE); 863aed035abSart } 864aed035abSart #endif 865df930be7Sderaadt 866df930be7Sderaadt /* 867df930be7Sderaadt * Set up buffers, so they can be used to read disk labels. 868df930be7Sderaadt */ 869df930be7Sderaadt bufinit(); 870df930be7Sderaadt 871df930be7Sderaadt /* 872df930be7Sderaadt * Configure the system. 873df930be7Sderaadt */ 87441033391Sderaadt if (boothowto & RB_CONFIG) { 87541033391Sderaadt #ifdef BOOT_CONFIG 87641033391Sderaadt user_config(); 87741033391Sderaadt #else 87841033391Sderaadt printf("kernel does not support -c; continuing..\n"); 87941033391Sderaadt #endif 88041033391Sderaadt } 88150ce9ee0Sniklas 88250ce9ee0Sniklas /* 883aed035abSart * Set up the HWPCB so that it's safe to configure secondary 884aed035abSart * CPUs. 88550ce9ee0Sniklas */ 886aed035abSart hwrpb_primary_init(); 887aed035abSart } 888aed035abSart 889aed035abSart /* 890aed035abSart * Retrieve the platform name from the DSR. 891aed035abSart */ 892aed035abSart const char * 893aed035abSart alpha_dsr_sysname() 894aed035abSart { 895aed035abSart struct dsrdb *dsr; 896aed035abSart const char *sysname; 897aed035abSart 898aed035abSart /* 899aed035abSart * DSR does not exist on early HWRPB versions. 900aed035abSart */ 901aed035abSart if (hwrpb->rpb_version < HWRPB_DSRDB_MINVERS) 902aed035abSart return (NULL); 903aed035abSart 904aed035abSart dsr = (struct dsrdb *)(((caddr_t)hwrpb) + hwrpb->rpb_dsrdb_off); 905aed035abSart sysname = (const char *)((caddr_t)dsr + (dsr->dsr_sysname_off + 906aed035abSart sizeof(u_int64_t))); 907aed035abSart return (sysname); 908aed035abSart } 909aed035abSart 910aed035abSart /* 911aed035abSart * Lookup the system specified system variation in the provided table, 912aed035abSart * returning the model string on match. 913aed035abSart */ 914aed035abSart const char * 915aed035abSart alpha_variation_name(variation, avtp) 916aed035abSart u_int64_t variation; 917aed035abSart const struct alpha_variation_table *avtp; 918aed035abSart { 919aed035abSart int i; 920aed035abSart 921aed035abSart for (i = 0; avtp[i].avt_model != NULL; i++) 922aed035abSart if (avtp[i].avt_variation == variation) 923aed035abSart return (avtp[i].avt_model); 924aed035abSart return (NULL); 925aed035abSart } 926aed035abSart 927aed035abSart /* 928aed035abSart * Generate a default platform name based for unknown system variations. 929aed035abSart */ 930aed035abSart const char * 931aed035abSart alpha_unknown_sysname() 932aed035abSart { 933aed035abSart static char s[128]; /* safe size */ 934aed035abSart 935d5eb2d9aSderaadt snprintf(s, sizeof s, "%s family, unknown model variation 0x%lx", 936e86d96d5Smiod platform.family, (unsigned long)hwrpb->rpb_variation & SV_ST_MASK); 937aed035abSart return ((const char *)s); 938df930be7Sderaadt } 939df930be7Sderaadt 94050ce9ee0Sniklas void 941df930be7Sderaadt identifycpu() 942df930be7Sderaadt { 943aed035abSart char *s; 944b3cee53eSmartin int slen; 945df930be7Sderaadt 946df930be7Sderaadt /* 947df930be7Sderaadt * print out CPU identification information. 948df930be7Sderaadt */ 949aed035abSart printf("%s", cpu_model); 950aed035abSart for(s = cpu_model; *s; ++s) 951aed035abSart if(strncasecmp(s, "MHz", 3) == 0) 952aed035abSart goto skipMHz; 953e86d96d5Smiod printf(", %luMHz", (unsigned long)hwrpb->rpb_cc_freq / 1000000); 954aed035abSart skipMHz: 955b3cee53eSmartin /* fill in hw_serial if a serial number is known */ 956b3cee53eSmartin slen = strlen(hwrpb->rpb_ssn) + 1; 957b3cee53eSmartin if (slen > 1) { 958b3cee53eSmartin hw_serial = malloc(slen, M_SYSCTL, M_NOWAIT); 959b3cee53eSmartin if (hw_serial) 960b3cee53eSmartin strlcpy(hw_serial, (char *)hwrpb->rpb_ssn, slen); 961b3cee53eSmartin } 962b3cee53eSmartin 963aed035abSart printf("\n"); 964e86d96d5Smiod printf("%lu byte page size, %d processor%s.\n", 965e86d96d5Smiod (unsigned long)hwrpb->rpb_page_size, ncpusfound, 966e86d96d5Smiod ncpusfound == 1 ? "" : "s"); 967df930be7Sderaadt #if 0 968b3cee53eSmartin /* this is not particularly useful! */ 969df930be7Sderaadt printf("variation: 0x%lx, revision 0x%lx\n", 970df930be7Sderaadt hwrpb->rpb_variation, *(long *)hwrpb->rpb_revision); 971df930be7Sderaadt #endif 972df930be7Sderaadt } 973df930be7Sderaadt 974df930be7Sderaadt int waittime = -1; 975df930be7Sderaadt struct pcb dumppcb; 976df930be7Sderaadt 977ff261808Suebayasi __dead void 978ff261808Suebayasi boot(int howto) 979df930be7Sderaadt { 980c3f3b0feSdlg struct device *mainbus; 981aed035abSart #if defined(MULTIPROCESSOR) 98221c23d01Smiod u_long wait_mask; 98321c23d01Smiod int i; 984aed035abSart #endif 985aed035abSart 986df930be7Sderaadt /* If system is cold, just halt. */ 987df930be7Sderaadt if (cold) { 988c9ad5066Stom /* (Unless the user explicitly asked for reboot.) */ 989c9ad5066Stom if ((howto & RB_USERREQ) == 0) 990df930be7Sderaadt howto |= RB_HALT; 991df930be7Sderaadt goto haltsys; 992df930be7Sderaadt } 993df930be7Sderaadt 99450ce9ee0Sniklas /* If "always halt" was specified as a boot flag, obey. */ 99550ce9ee0Sniklas if ((boothowto & RB_HALT) != 0) 99650ce9ee0Sniklas howto |= RB_HALT; 99750ce9ee0Sniklas 998df930be7Sderaadt boothowto = howto; 999df930be7Sderaadt if ((howto & RB_NOSYNC) == 0 && waittime < 0) { 1000df930be7Sderaadt waittime = 0; 1001df930be7Sderaadt vfs_shutdown(); 1002*15be954bSuebayasi 10032417125dSmiod if ((howto & RB_TIMEBAD) == 0) { 1004df930be7Sderaadt resettodr(); 10052417125dSmiod } else { 10062417125dSmiod printf("WARNING: not updating battery clock\n"); 10072417125dSmiod } 1008df930be7Sderaadt } 10097d9ca166Sderaadt if_downall(); 1010df930be7Sderaadt 1011c98e8b29Sderaadt uvm_shutdown(); 1012c98e8b29Sderaadt splhigh(); /* Disable interrupts. */ 1013df930be7Sderaadt 101421c23d01Smiod #if defined(MULTIPROCESSOR) 101521c23d01Smiod /* 101621c23d01Smiod * Halt all other CPUs. 101721c23d01Smiod */ 101821c23d01Smiod wait_mask = (1UL << hwrpb->rpb_primary_cpu_id); 101921c23d01Smiod alpha_broadcast_ipi(ALPHA_IPI_HALT); 102021c23d01Smiod 102121c23d01Smiod /* Ensure any CPUs paused by DDB resume execution so they can halt */ 102221c23d01Smiod cpus_paused = 0; 102321c23d01Smiod 102421c23d01Smiod for (i = 0; i < 10000; i++) { 102521c23d01Smiod alpha_mb(); 102621c23d01Smiod if (cpus_running == wait_mask) 102721c23d01Smiod break; 102821c23d01Smiod delay(1000); 102921c23d01Smiod } 103021c23d01Smiod alpha_mb(); 103121c23d01Smiod if (cpus_running != wait_mask) 103221c23d01Smiod printf("WARNING: Unable to halt secondary CPUs (0x%lx)\n", 103321c23d01Smiod cpus_running); 103421c23d01Smiod #endif 103521c23d01Smiod 1036df930be7Sderaadt /* If rebooting and a dump is requested do it. */ 103750ce9ee0Sniklas if (howto & RB_DUMP) 1038df930be7Sderaadt dumpsys(); 1039df930be7Sderaadt 104034fbf6deSderaadt haltsys: 1041df930be7Sderaadt doshutdownhooks(); 1042c3f3b0feSdlg mainbus = device_mainbus(); 1043c3f3b0feSdlg if (mainbus != NULL) 1044c3f3b0feSdlg config_suspend(mainbus, DVACT_POWERDOWN); 1045df930be7Sderaadt 1046df930be7Sderaadt #ifdef BOOTKEY 1047df930be7Sderaadt printf("hit any key to %s...\n", howto & RB_HALT ? "halt" : "reboot"); 1048aed035abSart cnpollc(1); /* for proper keyboard command handling */ 1049df930be7Sderaadt cngetc(); 1050aed035abSart cnpollc(0); 1051df930be7Sderaadt printf("\n"); 1052df930be7Sderaadt #endif 1053df930be7Sderaadt 1054aed035abSart /* Finally, powerdown/halt/reboot the system. */ 1055aed035abSart if ((howto & RB_POWERDOWN) == RB_POWERDOWN && 1056aed035abSart platform.powerdown != NULL) { 1057aed035abSart (*platform.powerdown)(); 1058aed035abSart printf("WARNING: powerdown failed!\n"); 1059aed035abSart } 1060df930be7Sderaadt printf("%s\n\n", howto & RB_HALT ? "halted." : "rebooting..."); 1061df930be7Sderaadt prom_halt(howto & RB_HALT); 1062df930be7Sderaadt /*NOTREACHED*/ 1063df930be7Sderaadt } 1064df930be7Sderaadt 1065df930be7Sderaadt /* 1066df930be7Sderaadt * These variables are needed by /sbin/savecore 1067df930be7Sderaadt */ 1068df930be7Sderaadt u_long dumpmag = 0x8fca0101; /* magic number */ 1069df930be7Sderaadt int dumpsize = 0; /* pages */ 1070df930be7Sderaadt long dumplo = 0; /* blocks */ 1071df930be7Sderaadt 1072df930be7Sderaadt /* 107350ce9ee0Sniklas * cpu_dumpsize: calculate size of machine-dependent kernel core dump headers. 107450ce9ee0Sniklas */ 107550ce9ee0Sniklas int 107650ce9ee0Sniklas cpu_dumpsize() 107750ce9ee0Sniklas { 107850ce9ee0Sniklas int size; 107950ce9ee0Sniklas 1080aed035abSart size = ALIGN(sizeof(kcore_seg_t)) + ALIGN(sizeof(cpu_kcore_hdr_t)) + 1081aed035abSart ALIGN(mem_cluster_cnt * sizeof(phys_ram_seg_t)); 108250ce9ee0Sniklas if (roundup(size, dbtob(1)) != dbtob(1)) 108350ce9ee0Sniklas return -1; 108450ce9ee0Sniklas 108550ce9ee0Sniklas return (1); 108650ce9ee0Sniklas } 108750ce9ee0Sniklas 108850ce9ee0Sniklas /* 1089aed035abSart * cpu_dump_mempagecnt: calculate size of RAM (in pages) to be dumped. 1090aed035abSart */ 1091aed035abSart u_long 1092aed035abSart cpu_dump_mempagecnt() 1093aed035abSart { 1094aed035abSart u_long i, n; 1095aed035abSart 1096aed035abSart n = 0; 1097aed035abSart for (i = 0; i < mem_cluster_cnt; i++) 1098aed035abSart n += atop(mem_clusters[i].size); 1099aed035abSart return (n); 1100aed035abSart } 1101aed035abSart 1102aed035abSart /* 110350ce9ee0Sniklas * cpu_dump: dump machine-dependent kernel core dump headers. 110450ce9ee0Sniklas */ 110550ce9ee0Sniklas int 110650ce9ee0Sniklas cpu_dump() 110750ce9ee0Sniklas { 11081abdbfdeSderaadt int (*dump)(dev_t, daddr_t, caddr_t, size_t); 1109aed035abSart char buf[dbtob(1)]; 111050ce9ee0Sniklas kcore_seg_t *segp; 111150ce9ee0Sniklas cpu_kcore_hdr_t *cpuhdrp; 1112aed035abSart phys_ram_seg_t *memsegp; 1113aed035abSart int i; 111450ce9ee0Sniklas 111550ce9ee0Sniklas dump = bdevsw[major(dumpdev)].d_dump; 111650ce9ee0Sniklas 1117aed035abSart bzero(buf, sizeof buf); 111850ce9ee0Sniklas segp = (kcore_seg_t *)buf; 1119aed035abSart cpuhdrp = (cpu_kcore_hdr_t *)&buf[ALIGN(sizeof(*segp))]; 1120aed035abSart memsegp = (phys_ram_seg_t *)&buf[ALIGN(sizeof(*segp)) + 1121aed035abSart ALIGN(sizeof(*cpuhdrp))]; 112250ce9ee0Sniklas 112350ce9ee0Sniklas /* 112450ce9ee0Sniklas * Generate a segment header. 112550ce9ee0Sniklas */ 112650ce9ee0Sniklas CORE_SETMAGIC(*segp, KCORE_MAGIC, MID_MACHINE, CORE_CPU); 112750ce9ee0Sniklas segp->c_size = dbtob(1) - ALIGN(sizeof(*segp)); 112850ce9ee0Sniklas 112950ce9ee0Sniklas /* 1130aed035abSart * Add the machine-dependent header info. 113150ce9ee0Sniklas */ 1132aed035abSart cpuhdrp->lev1map_pa = ALPHA_K0SEG_TO_PHYS((vaddr_t)kernel_lev1map); 113350ce9ee0Sniklas cpuhdrp->page_size = PAGE_SIZE; 1134aed035abSart cpuhdrp->nmemsegs = mem_cluster_cnt; 1135aed035abSart 1136aed035abSart /* 1137aed035abSart * Fill in the memory segment descriptors. 1138aed035abSart */ 1139aed035abSart for (i = 0; i < mem_cluster_cnt; i++) { 1140aed035abSart memsegp[i].start = mem_clusters[i].start; 1141aed035abSart memsegp[i].size = mem_clusters[i].size & ~PAGE_MASK; 1142aed035abSart } 114350ce9ee0Sniklas 114450ce9ee0Sniklas return (dump(dumpdev, dumplo, (caddr_t)buf, dbtob(1))); 114550ce9ee0Sniklas } 114650ce9ee0Sniklas 114750ce9ee0Sniklas /* 1148aed035abSart * This is called by main to set dumplo and dumpsize. 1149194dd68bSbrad * Dumps always skip the first PAGE_SIZE of disk space 1150df930be7Sderaadt * in case there might be a disk label stored there. 1151df930be7Sderaadt * If there is extra space, put dump at the end to 1152df930be7Sderaadt * reduce the chance that swapping trashes it. 1153df930be7Sderaadt */ 1154df930be7Sderaadt void 1155e17d3b39Sderaadt dumpconf(void) 1156df930be7Sderaadt { 115750ce9ee0Sniklas int nblks, dumpblks; /* size of dump area */ 1158df930be7Sderaadt 1159e17d3b39Sderaadt if (dumpdev == NODEV || 1160e17d3b39Sderaadt (nblks = (bdevsw[major(dumpdev)].d_psize)(dumpdev)) == 0) 1161e17d3b39Sderaadt return; 1162df930be7Sderaadt if (nblks <= ctod(1)) 1163e17d3b39Sderaadt return; 116450ce9ee0Sniklas 116550ce9ee0Sniklas dumpblks = cpu_dumpsize(); 116650ce9ee0Sniklas if (dumpblks < 0) 1167e17d3b39Sderaadt return; 1168aed035abSart dumpblks += ctod(cpu_dump_mempagecnt()); 116950ce9ee0Sniklas 117050ce9ee0Sniklas /* If dump won't fit (incl. room for possible label), punt. */ 117150ce9ee0Sniklas if (dumpblks > (nblks - ctod(1))) 1172e17d3b39Sderaadt return; 117350ce9ee0Sniklas 117450ce9ee0Sniklas /* Put dump at end of partition */ 117550ce9ee0Sniklas dumplo = nblks - dumpblks; 117650ce9ee0Sniklas 117750ce9ee0Sniklas /* dumpsize is in page units, and doesn't include headers. */ 1178aed035abSart dumpsize = cpu_dump_mempagecnt(); 1179df930be7Sderaadt } 1180df930be7Sderaadt 1181df930be7Sderaadt /* 118250ce9ee0Sniklas * Dump the kernel's image to the swap partition. 1183df930be7Sderaadt */ 1184194dd68bSbrad #define BYTES_PER_DUMP PAGE_SIZE 118550ce9ee0Sniklas 1186df930be7Sderaadt void 1187df930be7Sderaadt dumpsys() 1188df930be7Sderaadt { 1189aed035abSart u_long totalbytesleft, bytes, i, n, memcl; 1190aed035abSart u_long maddr; 1191aed035abSart int psize; 11921abdbfdeSderaadt daddr_t blkno; 11931abdbfdeSderaadt int (*dump)(dev_t, daddr_t, caddr_t, size_t); 119450ce9ee0Sniklas int error; 1195067cbd75Sderaadt extern int msgbufmapped; 1196df930be7Sderaadt 119750ce9ee0Sniklas /* Save registers. */ 119850ce9ee0Sniklas savectx(&dumppcb); 119950ce9ee0Sniklas 120050ce9ee0Sniklas msgbufmapped = 0; /* don't record dump msgs in msgbuf */ 1201df930be7Sderaadt if (dumpdev == NODEV) 1202df930be7Sderaadt return; 120350ce9ee0Sniklas 120450ce9ee0Sniklas /* 120550ce9ee0Sniklas * For dumps during autoconfiguration, 120650ce9ee0Sniklas * if dump device has already configured... 120750ce9ee0Sniklas */ 1208df930be7Sderaadt if (dumpsize == 0) 120950ce9ee0Sniklas dumpconf(); 121050ce9ee0Sniklas if (dumplo <= 0) { 1211aed035abSart printf("\ndump to dev %u,%u not possible\n", major(dumpdev), 1212aed035abSart minor(dumpdev)); 1213df930be7Sderaadt return; 1214df930be7Sderaadt } 1215aed035abSart printf("\ndumping to dev %u,%u offset %ld\n", major(dumpdev), 1216aed035abSart minor(dumpdev), dumplo); 1217df930be7Sderaadt 12181b720b8bSmiod #ifdef UVM_SWAP_ENCRYPT 12191b720b8bSmiod uvm_swap_finicrypt_all(); 12201b720b8bSmiod #endif 12211b720b8bSmiod 122250ce9ee0Sniklas psize = (*bdevsw[major(dumpdev)].d_psize)(dumpdev); 1223df930be7Sderaadt printf("dump "); 122450ce9ee0Sniklas if (psize == -1) { 122550ce9ee0Sniklas printf("area unavailable\n"); 122650ce9ee0Sniklas return; 122750ce9ee0Sniklas } 122850ce9ee0Sniklas 122950ce9ee0Sniklas /* XXX should purge all outstanding keystrokes. */ 123050ce9ee0Sniklas 123150ce9ee0Sniklas if ((error = cpu_dump()) != 0) 123250ce9ee0Sniklas goto err; 123350ce9ee0Sniklas 1234aed035abSart totalbytesleft = ptoa(cpu_dump_mempagecnt()); 123550ce9ee0Sniklas blkno = dumplo + cpu_dumpsize(); 123650ce9ee0Sniklas dump = bdevsw[major(dumpdev)].d_dump; 123750ce9ee0Sniklas error = 0; 1238aed035abSart 1239aed035abSart for (memcl = 0; memcl < mem_cluster_cnt; memcl++) { 1240aed035abSart maddr = mem_clusters[memcl].start; 1241aed035abSart bytes = mem_clusters[memcl].size & ~PAGE_MASK; 1242aed035abSart 1243aed035abSart for (i = 0; i < bytes; i += n, totalbytesleft -= n) { 124450ce9ee0Sniklas 124550ce9ee0Sniklas /* Print out how many MBs we to go. */ 1246aed035abSart if ((totalbytesleft % (1024*1024)) == 0) 1247aed035abSart printf("%ld ", totalbytesleft / (1024 * 1024)); 124850ce9ee0Sniklas 124950ce9ee0Sniklas /* Limit size for next transfer. */ 1250aed035abSart n = bytes - i; 125150ce9ee0Sniklas if (n > BYTES_PER_DUMP) 125250ce9ee0Sniklas n = BYTES_PER_DUMP; 125350ce9ee0Sniklas 125450ce9ee0Sniklas error = (*dump)(dumpdev, blkno, 125550ce9ee0Sniklas (caddr_t)ALPHA_PHYS_TO_K0SEG(maddr), n); 125650ce9ee0Sniklas if (error) 1257aed035abSart goto err; 125850ce9ee0Sniklas maddr += n; 125950ce9ee0Sniklas blkno += btodb(n); /* XXX? */ 126050ce9ee0Sniklas 126150ce9ee0Sniklas /* XXX should look for keystrokes, to cancel. */ 126250ce9ee0Sniklas } 1263aed035abSart } 126450ce9ee0Sniklas 126550ce9ee0Sniklas err: 126650ce9ee0Sniklas switch (error) { 1267a37778bcSderaadt #ifdef DEBUG 1268df930be7Sderaadt case ENXIO: 1269df930be7Sderaadt printf("device bad\n"); 1270df930be7Sderaadt break; 1271df930be7Sderaadt 1272df930be7Sderaadt case EFAULT: 1273df930be7Sderaadt printf("device not ready\n"); 1274df930be7Sderaadt break; 1275df930be7Sderaadt 1276df930be7Sderaadt case EINVAL: 1277df930be7Sderaadt printf("area improper\n"); 1278df930be7Sderaadt break; 1279df930be7Sderaadt 1280df930be7Sderaadt case EIO: 1281df930be7Sderaadt printf("i/o error\n"); 1282df930be7Sderaadt break; 1283df930be7Sderaadt 1284df930be7Sderaadt case EINTR: 1285df930be7Sderaadt printf("aborted from console\n"); 1286df930be7Sderaadt break; 1287a37778bcSderaadt #endif /* DEBUG */ 128850ce9ee0Sniklas case 0: 1289df930be7Sderaadt printf("succeeded\n"); 1290df930be7Sderaadt break; 129150ce9ee0Sniklas 129250ce9ee0Sniklas default: 129350ce9ee0Sniklas printf("error %d\n", error); 129450ce9ee0Sniklas break; 1295df930be7Sderaadt } 1296df930be7Sderaadt printf("\n\n"); 1297df930be7Sderaadt delay(1000); 1298df930be7Sderaadt } 1299df930be7Sderaadt 1300df930be7Sderaadt void 1301df930be7Sderaadt frametoreg(framep, regp) 1302df930be7Sderaadt struct trapframe *framep; 1303df930be7Sderaadt struct reg *regp; 1304df930be7Sderaadt { 1305df930be7Sderaadt 1306df930be7Sderaadt regp->r_regs[R_V0] = framep->tf_regs[FRAME_V0]; 1307df930be7Sderaadt regp->r_regs[R_T0] = framep->tf_regs[FRAME_T0]; 1308df930be7Sderaadt regp->r_regs[R_T1] = framep->tf_regs[FRAME_T1]; 1309df930be7Sderaadt regp->r_regs[R_T2] = framep->tf_regs[FRAME_T2]; 1310df930be7Sderaadt regp->r_regs[R_T3] = framep->tf_regs[FRAME_T3]; 1311df930be7Sderaadt regp->r_regs[R_T4] = framep->tf_regs[FRAME_T4]; 1312df930be7Sderaadt regp->r_regs[R_T5] = framep->tf_regs[FRAME_T5]; 1313df930be7Sderaadt regp->r_regs[R_T6] = framep->tf_regs[FRAME_T6]; 1314df930be7Sderaadt regp->r_regs[R_T7] = framep->tf_regs[FRAME_T7]; 1315df930be7Sderaadt regp->r_regs[R_S0] = framep->tf_regs[FRAME_S0]; 1316df930be7Sderaadt regp->r_regs[R_S1] = framep->tf_regs[FRAME_S1]; 1317df930be7Sderaadt regp->r_regs[R_S2] = framep->tf_regs[FRAME_S2]; 1318df930be7Sderaadt regp->r_regs[R_S3] = framep->tf_regs[FRAME_S3]; 1319df930be7Sderaadt regp->r_regs[R_S4] = framep->tf_regs[FRAME_S4]; 1320df930be7Sderaadt regp->r_regs[R_S5] = framep->tf_regs[FRAME_S5]; 1321df930be7Sderaadt regp->r_regs[R_S6] = framep->tf_regs[FRAME_S6]; 132250ce9ee0Sniklas regp->r_regs[R_A0] = framep->tf_regs[FRAME_A0]; 132350ce9ee0Sniklas regp->r_regs[R_A1] = framep->tf_regs[FRAME_A1]; 132450ce9ee0Sniklas regp->r_regs[R_A2] = framep->tf_regs[FRAME_A2]; 1325df930be7Sderaadt regp->r_regs[R_A3] = framep->tf_regs[FRAME_A3]; 1326df930be7Sderaadt regp->r_regs[R_A4] = framep->tf_regs[FRAME_A4]; 1327df930be7Sderaadt regp->r_regs[R_A5] = framep->tf_regs[FRAME_A5]; 1328df930be7Sderaadt regp->r_regs[R_T8] = framep->tf_regs[FRAME_T8]; 1329df930be7Sderaadt regp->r_regs[R_T9] = framep->tf_regs[FRAME_T9]; 1330df930be7Sderaadt regp->r_regs[R_T10] = framep->tf_regs[FRAME_T10]; 1331df930be7Sderaadt regp->r_regs[R_T11] = framep->tf_regs[FRAME_T11]; 1332df930be7Sderaadt regp->r_regs[R_RA] = framep->tf_regs[FRAME_RA]; 1333df930be7Sderaadt regp->r_regs[R_T12] = framep->tf_regs[FRAME_T12]; 1334df930be7Sderaadt regp->r_regs[R_AT] = framep->tf_regs[FRAME_AT]; 133550ce9ee0Sniklas regp->r_regs[R_GP] = framep->tf_regs[FRAME_GP]; 133650ce9ee0Sniklas /* regp->r_regs[R_SP] = framep->tf_regs[FRAME_SP]; XXX */ 1337df930be7Sderaadt regp->r_regs[R_ZERO] = 0; 1338df930be7Sderaadt } 1339df930be7Sderaadt 1340df930be7Sderaadt void 1341df930be7Sderaadt regtoframe(regp, framep) 1342df930be7Sderaadt struct reg *regp; 1343df930be7Sderaadt struct trapframe *framep; 1344df930be7Sderaadt { 1345df930be7Sderaadt 1346df930be7Sderaadt framep->tf_regs[FRAME_V0] = regp->r_regs[R_V0]; 1347df930be7Sderaadt framep->tf_regs[FRAME_T0] = regp->r_regs[R_T0]; 1348df930be7Sderaadt framep->tf_regs[FRAME_T1] = regp->r_regs[R_T1]; 1349df930be7Sderaadt framep->tf_regs[FRAME_T2] = regp->r_regs[R_T2]; 1350df930be7Sderaadt framep->tf_regs[FRAME_T3] = regp->r_regs[R_T3]; 1351df930be7Sderaadt framep->tf_regs[FRAME_T4] = regp->r_regs[R_T4]; 1352df930be7Sderaadt framep->tf_regs[FRAME_T5] = regp->r_regs[R_T5]; 1353df930be7Sderaadt framep->tf_regs[FRAME_T6] = regp->r_regs[R_T6]; 1354df930be7Sderaadt framep->tf_regs[FRAME_T7] = regp->r_regs[R_T7]; 1355df930be7Sderaadt framep->tf_regs[FRAME_S0] = regp->r_regs[R_S0]; 1356df930be7Sderaadt framep->tf_regs[FRAME_S1] = regp->r_regs[R_S1]; 1357df930be7Sderaadt framep->tf_regs[FRAME_S2] = regp->r_regs[R_S2]; 1358df930be7Sderaadt framep->tf_regs[FRAME_S3] = regp->r_regs[R_S3]; 1359df930be7Sderaadt framep->tf_regs[FRAME_S4] = regp->r_regs[R_S4]; 1360df930be7Sderaadt framep->tf_regs[FRAME_S5] = regp->r_regs[R_S5]; 1361df930be7Sderaadt framep->tf_regs[FRAME_S6] = regp->r_regs[R_S6]; 136250ce9ee0Sniklas framep->tf_regs[FRAME_A0] = regp->r_regs[R_A0]; 136350ce9ee0Sniklas framep->tf_regs[FRAME_A1] = regp->r_regs[R_A1]; 136450ce9ee0Sniklas framep->tf_regs[FRAME_A2] = regp->r_regs[R_A2]; 1365df930be7Sderaadt framep->tf_regs[FRAME_A3] = regp->r_regs[R_A3]; 1366df930be7Sderaadt framep->tf_regs[FRAME_A4] = regp->r_regs[R_A4]; 1367df930be7Sderaadt framep->tf_regs[FRAME_A5] = regp->r_regs[R_A5]; 1368df930be7Sderaadt framep->tf_regs[FRAME_T8] = regp->r_regs[R_T8]; 1369df930be7Sderaadt framep->tf_regs[FRAME_T9] = regp->r_regs[R_T9]; 1370df930be7Sderaadt framep->tf_regs[FRAME_T10] = regp->r_regs[R_T10]; 1371df930be7Sderaadt framep->tf_regs[FRAME_T11] = regp->r_regs[R_T11]; 1372df930be7Sderaadt framep->tf_regs[FRAME_RA] = regp->r_regs[R_RA]; 1373df930be7Sderaadt framep->tf_regs[FRAME_T12] = regp->r_regs[R_T12]; 1374df930be7Sderaadt framep->tf_regs[FRAME_AT] = regp->r_regs[R_AT]; 137550ce9ee0Sniklas framep->tf_regs[FRAME_GP] = regp->r_regs[R_GP]; 137650ce9ee0Sniklas /* framep->tf_regs[FRAME_SP] = regp->r_regs[R_SP]; XXX */ 1377df930be7Sderaadt /* ??? = regp->r_regs[R_ZERO]; */ 1378df930be7Sderaadt } 1379df930be7Sderaadt 1380df930be7Sderaadt void 1381df930be7Sderaadt printregs(regp) 1382df930be7Sderaadt struct reg *regp; 1383df930be7Sderaadt { 1384df930be7Sderaadt int i; 1385df930be7Sderaadt 1386df930be7Sderaadt for (i = 0; i < 32; i++) 1387df930be7Sderaadt printf("R%d:\t0x%016lx%s", i, regp->r_regs[i], 1388df930be7Sderaadt i & 1 ? "\n" : "\t"); 1389df930be7Sderaadt } 1390df930be7Sderaadt 1391df930be7Sderaadt void 1392df930be7Sderaadt regdump(framep) 1393df930be7Sderaadt struct trapframe *framep; 1394df930be7Sderaadt { 1395df930be7Sderaadt struct reg reg; 1396df930be7Sderaadt 1397df930be7Sderaadt frametoreg(framep, ®); 139850ce9ee0Sniklas reg.r_regs[R_SP] = alpha_pal_rdusp(); 139950ce9ee0Sniklas 1400df930be7Sderaadt printf("REGISTERS:\n"); 1401df930be7Sderaadt printregs(®); 1402df930be7Sderaadt } 1403df930be7Sderaadt 1404df930be7Sderaadt #ifdef DEBUG 1405df930be7Sderaadt int sigdebug = 0; 140672830333Sokan pid_t sigpid = 0; 1407df930be7Sderaadt #define SDB_FOLLOW 0x01 1408df930be7Sderaadt #define SDB_KSTACK 0x02 1409df930be7Sderaadt #endif 1410df930be7Sderaadt 1411df930be7Sderaadt /* 1412df930be7Sderaadt * Send an interrupt to process. 1413df930be7Sderaadt */ 1414df930be7Sderaadt void 14155e1760a6Sderaadt sendsig(catcher, sig, mask, code, type, val) 1416df930be7Sderaadt sig_t catcher; 1417df930be7Sderaadt int sig, mask; 1418df930be7Sderaadt u_long code; 14195e1760a6Sderaadt int type; 14205e1760a6Sderaadt union sigval val; 1421df930be7Sderaadt { 1422df930be7Sderaadt struct proc *p = curproc; 1423df930be7Sderaadt struct sigcontext *scp, ksc; 1424e7e08221Smiod struct fpreg *fpregs = (struct fpreg *)&ksc.sc_fpregs; 1425df930be7Sderaadt struct trapframe *frame; 1426533be81aSguenther struct sigacts *psp = p->p_p->ps_sigacts; 14271eaa59e7Sguenther unsigned long oldsp; 14281eaa59e7Sguenther int fsize, rndfsize, kscsize; 14292bf9c155Sderaadt siginfo_t *sip, ksi; 1430df930be7Sderaadt 14311eaa59e7Sguenther oldsp = alpha_pal_rdusp(); 1432df930be7Sderaadt frame = p->p_md.md_tf; 1433df930be7Sderaadt fsize = sizeof ksc; 1434df930be7Sderaadt rndfsize = ((fsize + 15) / 16) * 16; 14352bf9c155Sderaadt kscsize = rndfsize; 14362bf9c155Sderaadt if (psp->ps_siginfo & sigmask(sig)) { 14372bf9c155Sderaadt fsize += sizeof ksi; 14382bf9c155Sderaadt rndfsize = ((fsize + 15) / 16) * 16; 14392bf9c155Sderaadt } 144074652a67Sniklas 1441df930be7Sderaadt /* 1442df930be7Sderaadt * Allocate and validate space for the signal handler 1443df930be7Sderaadt * context. Note that if the stack is in P0 space, the 1444aed035abSart * call to uvm_grow() is a nop, and the useracc() check 1445df930be7Sderaadt * will fail if the process has not already allocated 1446df930be7Sderaadt * the space with a `brk'. 1447df930be7Sderaadt */ 14481eaa59e7Sguenther if ((p->p_sigstk.ss_flags & SS_DISABLE) == 0 && 14491eaa59e7Sguenther !sigonstack(oldsp) && (psp->ps_sigonstack & sigmask(sig))) 14502725daddSguenther scp = (struct sigcontext *)(p->p_sigstk.ss_sp + 14512725daddSguenther p->p_sigstk.ss_size - rndfsize); 14521eaa59e7Sguenther else 14531eaa59e7Sguenther scp = (struct sigcontext *)(oldsp - rndfsize); 145476d52da2Smartin if ((u_long)scp <= USRSTACK - ptoa(p->p_vmspace->vm_ssize)) 1455aed035abSart (void)uvm_grow(p, (u_long)scp); 1456df930be7Sderaadt #ifdef DEBUG 1457df930be7Sderaadt if ((sigdebug & SDB_KSTACK) && p->p_pid == sigpid) 145850ce9ee0Sniklas printf("sendsig(%d): sig %d ssp %p usp %p\n", p->p_pid, 14591eaa59e7Sguenther sig, &ksc, scp); 1460df930be7Sderaadt #endif 1461df930be7Sderaadt 1462df930be7Sderaadt /* 1463df930be7Sderaadt * Build the signal context to be used by sigreturn. 1464df930be7Sderaadt */ 14651eaa59e7Sguenther bzero(&ksc, sizeof(ksc)); 1466df930be7Sderaadt ksc.sc_mask = mask; 146750ce9ee0Sniklas ksc.sc_pc = frame->tf_regs[FRAME_PC]; 146850ce9ee0Sniklas ksc.sc_ps = frame->tf_regs[FRAME_PS]; 1469df930be7Sderaadt 1470df930be7Sderaadt /* copy the registers. */ 1471df930be7Sderaadt frametoreg(frame, (struct reg *)ksc.sc_regs); 1472df930be7Sderaadt ksc.sc_regs[R_ZERO] = 0xACEDBADE; /* magic number */ 14731eaa59e7Sguenther ksc.sc_regs[R_SP] = oldsp; 1474df930be7Sderaadt 1475df930be7Sderaadt /* save the floating-point state, if necessary, then copy it. */ 1476433075b6Spvalchev if (p->p_addr->u_pcb.pcb_fpcpu != NULL) 1477433075b6Spvalchev fpusave_proc(p, 1); 1478df930be7Sderaadt ksc.sc_ownedfp = p->p_md.md_flags & MDP_FPUSED; 1479e7e08221Smiod memcpy(/*ksc.sc_*/fpregs, &p->p_addr->u_pcb.pcb_fp, 1480df930be7Sderaadt sizeof(struct fpreg)); 1481433075b6Spvalchev #ifndef NO_IEEE 1482433075b6Spvalchev ksc.sc_fp_control = alpha_read_fp_c(p); 1483433075b6Spvalchev #else 1484433075b6Spvalchev ksc.sc_fp_control = 0; 1485433075b6Spvalchev #endif 1486433075b6Spvalchev memset(ksc.sc_reserved, 0, sizeof ksc.sc_reserved); /* XXX */ 1487433075b6Spvalchev memset(ksc.sc_xxx, 0, sizeof ksc.sc_xxx); /* XXX */ 1488df930be7Sderaadt 14892bf9c155Sderaadt if (psp->ps_siginfo & sigmask(sig)) { 14902bf9c155Sderaadt initsiginfo(&ksi, sig, code, type, val); 14912bf9c155Sderaadt sip = (void *)scp + kscsize; 1492679ebc41Smiod if (copyout((caddr_t)&ksi, (caddr_t)sip, fsize - kscsize) != 0) 1493679ebc41Smiod goto trash; 1494aa540fb8Sart } else 1495aa540fb8Sart sip = NULL; 14962bf9c155Sderaadt 1497df930be7Sderaadt /* 1498df930be7Sderaadt * copy the frame out to userland. 1499df930be7Sderaadt */ 1500679ebc41Smiod if (copyout((caddr_t)&ksc, (caddr_t)scp, kscsize) != 0) { 1501679ebc41Smiod trash: 1502679ebc41Smiod #ifdef DEBUG 1503679ebc41Smiod if ((sigdebug & SDB_KSTACK) && p->p_pid == sigpid) 1504679ebc41Smiod printf("sendsig(%d): copyout failed on sig %d\n", 1505679ebc41Smiod p->p_pid, sig); 1506679ebc41Smiod #endif 1507679ebc41Smiod /* 1508679ebc41Smiod * Process has trashed its stack; give it an illegal 1509679ebc41Smiod * instruction to halt it in its tracks. 1510679ebc41Smiod */ 151186fd84b3Smiod sigexit(p, SIGILL); 151286fd84b3Smiod /* NOTREACHED */ 1513679ebc41Smiod } 1514df930be7Sderaadt #ifdef DEBUG 1515df930be7Sderaadt if (sigdebug & SDB_FOLLOW) 151650ce9ee0Sniklas printf("sendsig(%d): sig %d scp %p code %lx\n", p->p_pid, sig, 1517df930be7Sderaadt scp, code); 1518df930be7Sderaadt #endif 1519df930be7Sderaadt 1520df930be7Sderaadt /* 1521df930be7Sderaadt * Set up the registers to return to sigcode. 1522df930be7Sderaadt */ 15238f76f5adSguenther frame->tf_regs[FRAME_PC] = p->p_p->ps_sigcode; 152450ce9ee0Sniklas frame->tf_regs[FRAME_A0] = sig; 1525aa540fb8Sart frame->tf_regs[FRAME_A1] = (u_int64_t)sip; 152650ce9ee0Sniklas frame->tf_regs[FRAME_A2] = (u_int64_t)scp; 1527df930be7Sderaadt frame->tf_regs[FRAME_T12] = (u_int64_t)catcher; /* t12 is pv */ 152850ce9ee0Sniklas alpha_pal_wrusp((unsigned long)scp); 1529df930be7Sderaadt 1530df930be7Sderaadt #ifdef DEBUG 1531df930be7Sderaadt if (sigdebug & SDB_FOLLOW) 1532df930be7Sderaadt printf("sendsig(%d): pc %lx, catcher %lx\n", p->p_pid, 153350ce9ee0Sniklas frame->tf_regs[FRAME_PC], frame->tf_regs[FRAME_A3]); 1534df930be7Sderaadt if ((sigdebug & SDB_KSTACK) && p->p_pid == sigpid) 1535df930be7Sderaadt printf("sendsig(%d): sig %d returns\n", 1536df930be7Sderaadt p->p_pid, sig); 1537df930be7Sderaadt #endif 1538df930be7Sderaadt } 1539df930be7Sderaadt 1540df930be7Sderaadt /* 1541df930be7Sderaadt * System call to cleanup state after a signal 1542df930be7Sderaadt * has been taken. Reset signal mask and 1543df930be7Sderaadt * stack state from context left by sendsig (above). 1544df930be7Sderaadt * Return to previous pc and psl as specified by 1545df930be7Sderaadt * context left by sendsig. Check carefully to 1546df930be7Sderaadt * make sure that the user has not modified the 1547125cd19fSderaadt * psl to gain improper privileges or to cause 1548df930be7Sderaadt * a machine fault. 1549df930be7Sderaadt */ 1550df930be7Sderaadt /* ARGSUSED */ 1551df930be7Sderaadt int 1552df930be7Sderaadt sys_sigreturn(p, v, retval) 1553df930be7Sderaadt struct proc *p; 1554df930be7Sderaadt void *v; 1555df930be7Sderaadt register_t *retval; 1556df930be7Sderaadt { 1557df930be7Sderaadt struct sys_sigreturn_args /* { 1558df930be7Sderaadt syscallarg(struct sigcontext *) sigcntxp; 1559df930be7Sderaadt } */ *uap = v; 1560aa540fb8Sart struct sigcontext ksc; 1561e7e08221Smiod struct fpreg *fpregs = (struct fpreg *)&ksc.sc_fpregs; 156260959295Smartin #ifdef DEBUG 156360959295Smartin struct sigcontext *scp; 156460959295Smartin #endif 1565aa540fb8Sart int error; 1566df930be7Sderaadt 1567df930be7Sderaadt #ifdef DEBUG 1568df930be7Sderaadt if (sigdebug & SDB_FOLLOW) 156950ce9ee0Sniklas printf("sigreturn: pid %d, scp %p\n", p->p_pid, scp); 1570df930be7Sderaadt #endif 1571df930be7Sderaadt 1572df930be7Sderaadt /* 1573df930be7Sderaadt * Test and fetch the context structure. 1574df930be7Sderaadt * We grab it all at once for speed. 1575df930be7Sderaadt */ 1576aa540fb8Sart if ((error = copyin(SCARG(uap, sigcntxp), &ksc, sizeof(ksc))) != 0) 1577aa540fb8Sart return (error); 1578df930be7Sderaadt 1579df930be7Sderaadt if (ksc.sc_regs[R_ZERO] != 0xACEDBADE) /* magic number */ 1580df930be7Sderaadt return (EINVAL); 1581df930be7Sderaadt /* 1582df930be7Sderaadt * Restore the user-supplied information 1583df930be7Sderaadt */ 1584df930be7Sderaadt p->p_sigmask = ksc.sc_mask &~ sigcantmask; 1585df930be7Sderaadt 158650ce9ee0Sniklas p->p_md.md_tf->tf_regs[FRAME_PC] = ksc.sc_pc; 158750ce9ee0Sniklas p->p_md.md_tf->tf_regs[FRAME_PS] = 158850ce9ee0Sniklas (ksc.sc_ps | ALPHA_PSL_USERSET) & ~ALPHA_PSL_USERCLR; 1589df930be7Sderaadt 1590df930be7Sderaadt regtoframe((struct reg *)ksc.sc_regs, p->p_md.md_tf); 159150ce9ee0Sniklas alpha_pal_wrusp(ksc.sc_regs[R_SP]); 1592df930be7Sderaadt 1593df930be7Sderaadt /* XXX ksc.sc_ownedfp ? */ 1594433075b6Spvalchev if (p->p_addr->u_pcb.pcb_fpcpu != NULL) 1595433075b6Spvalchev fpusave_proc(p, 0); 1596e7e08221Smiod memcpy(&p->p_addr->u_pcb.pcb_fp, /*ksc.sc_*/fpregs, 1597df930be7Sderaadt sizeof(struct fpreg)); 1598433075b6Spvalchev #ifndef NO_IEEE 1599433075b6Spvalchev p->p_addr->u_pcb.pcb_fp.fpr_cr = ksc.sc_fpcr; 1600433075b6Spvalchev p->p_md.md_flags = ksc.sc_fp_control & MDP_FP_C; 1601433075b6Spvalchev #endif 1602df930be7Sderaadt 1603df930be7Sderaadt #ifdef DEBUG 1604df930be7Sderaadt if (sigdebug & SDB_FOLLOW) 1605df930be7Sderaadt printf("sigreturn(%d): returns\n", p->p_pid); 1606df930be7Sderaadt #endif 1607df930be7Sderaadt return (EJUSTRETURN); 1608df930be7Sderaadt } 1609df930be7Sderaadt 1610df930be7Sderaadt /* 1611df930be7Sderaadt * machine dependent system variables. 1612df930be7Sderaadt */ 161350ce9ee0Sniklas int 1614df930be7Sderaadt cpu_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 1615df930be7Sderaadt int *name; 1616df930be7Sderaadt u_int namelen; 1617df930be7Sderaadt void *oldp; 1618df930be7Sderaadt size_t *oldlenp; 1619df930be7Sderaadt void *newp; 1620df930be7Sderaadt size_t newlen; 1621df930be7Sderaadt struct proc *p; 1622df930be7Sderaadt { 1623df930be7Sderaadt dev_t consdev; 1624a072164aSmiod #if NIOASIC > 0 1625a072164aSmiod int oldval, ret; 1626a072164aSmiod #endif 1627df930be7Sderaadt 162845e5a1a0Sart if (name[0] != CPU_CHIPSET && namelen != 1) 1629df930be7Sderaadt return (ENOTDIR); /* overloaded */ 1630df930be7Sderaadt 1631df930be7Sderaadt switch (name[0]) { 1632df930be7Sderaadt case CPU_CONSDEV: 1633df930be7Sderaadt if (cn_tab != NULL) 1634df930be7Sderaadt consdev = cn_tab->cn_dev; 1635df930be7Sderaadt else 1636df930be7Sderaadt consdev = NODEV; 1637df930be7Sderaadt return (sysctl_rdstruct(oldp, oldlenp, newp, &consdev, 1638df930be7Sderaadt sizeof consdev)); 1639417eba8cSderaadt 1640a37778bcSderaadt #ifndef SMALL_KERNEL 164150ce9ee0Sniklas case CPU_UNALIGNED_PRINT: 164250ce9ee0Sniklas return (sysctl_int(oldp, oldlenp, newp, newlen, 164350ce9ee0Sniklas &alpha_unaligned_print)); 164450ce9ee0Sniklas 164550ce9ee0Sniklas case CPU_UNALIGNED_FIX: 164650ce9ee0Sniklas return (sysctl_int(oldp, oldlenp, newp, newlen, 164750ce9ee0Sniklas &alpha_unaligned_fix)); 164850ce9ee0Sniklas 164950ce9ee0Sniklas case CPU_UNALIGNED_SIGBUS: 165050ce9ee0Sniklas return (sysctl_int(oldp, oldlenp, newp, newlen, 165150ce9ee0Sniklas &alpha_unaligned_sigbus)); 165250ce9ee0Sniklas 16533a630e3fSniklas case CPU_BOOTED_KERNEL: 1654aed035abSart return (sysctl_rdstring(oldp, oldlenp, newp, 1655aed035abSart bootinfo.booted_kernel)); 16563a630e3fSniklas 165745e5a1a0Sart case CPU_CHIPSET: 165845e5a1a0Sart return (alpha_sysctl_chipset(name + 1, namelen - 1, oldp, 165945e5a1a0Sart oldlenp)); 1660a37778bcSderaadt #endif /* SMALL_KERNEL */ 1661433075b6Spvalchev 1662433075b6Spvalchev #ifndef NO_IEEE 1663433075b6Spvalchev case CPU_FP_SYNC_COMPLETE: 1664433075b6Spvalchev return (sysctl_int(oldp, oldlenp, newp, newlen, 1665433075b6Spvalchev &alpha_fp_sync_complete)); 1666433075b6Spvalchev #endif 166727626149Smatthieu case CPU_ALLOWAPERTURE: 166827626149Smatthieu #ifdef APERTURE 166927626149Smatthieu if (securelevel > 0) 16701546ceefSderaadt return (sysctl_int_lower(oldp, oldlenp, newp, newlen, 16711546ceefSderaadt &allowaperture)); 167227626149Smatthieu else 167327626149Smatthieu return (sysctl_int(oldp, oldlenp, newp, newlen, 167427626149Smatthieu &allowaperture)); 167527626149Smatthieu #else 167627626149Smatthieu return (sysctl_rdint(oldp, oldlenp, newp, 0)); 167727626149Smatthieu #endif 1678a072164aSmiod #if NIOASIC > 0 1679a072164aSmiod case CPU_LED_BLINK: 1680a072164aSmiod oldval = alpha_led_blink; 1681a072164aSmiod ret = sysctl_int(oldp, oldlenp, newp, newlen, &alpha_led_blink); 1682a072164aSmiod if (oldval != alpha_led_blink) 1683a072164aSmiod ioasic_led_blink(NULL); 1684a072164aSmiod return (ret); 1685a072164aSmiod #endif 1686df930be7Sderaadt default: 1687df930be7Sderaadt return (EOPNOTSUPP); 1688df930be7Sderaadt } 1689df930be7Sderaadt /* NOTREACHED */ 1690df930be7Sderaadt } 1691df930be7Sderaadt 1692df930be7Sderaadt /* 1693df930be7Sderaadt * Set registers on exec. 1694df930be7Sderaadt */ 1695df930be7Sderaadt void 1696df930be7Sderaadt setregs(p, pack, stack, retval) 1697df930be7Sderaadt register struct proc *p; 1698df930be7Sderaadt struct exec_package *pack; 1699df930be7Sderaadt u_long stack; 1700df930be7Sderaadt register_t *retval; 1701df930be7Sderaadt { 1702df930be7Sderaadt struct trapframe *tfp = p->p_md.md_tf; 17033a630e3fSniklas #ifdef DEBUG 17043a630e3fSniklas int i; 17053a630e3fSniklas #endif 1706df930be7Sderaadt 1707df930be7Sderaadt #ifdef DEBUG 170850ce9ee0Sniklas /* 170950ce9ee0Sniklas * Crash and dump, if the user requested it. 171050ce9ee0Sniklas */ 171150ce9ee0Sniklas if (boothowto & RB_DUMP) 171250ce9ee0Sniklas panic("crash requested by boot flags"); 171350ce9ee0Sniklas #endif 171450ce9ee0Sniklas 171550ce9ee0Sniklas #ifdef DEBUG 171650ce9ee0Sniklas for (i = 0; i < FRAME_SIZE; i++) 1717df930be7Sderaadt tfp->tf_regs[i] = 0xbabefacedeadbeef; 17186334622bSguenther tfp->tf_regs[FRAME_A1] = 0; 1719df930be7Sderaadt #else 172050ce9ee0Sniklas bzero(tfp->tf_regs, FRAME_SIZE * sizeof tfp->tf_regs[0]); 1721df930be7Sderaadt #endif 1722df930be7Sderaadt bzero(&p->p_addr->u_pcb.pcb_fp, sizeof p->p_addr->u_pcb.pcb_fp); 172350ce9ee0Sniklas alpha_pal_wrusp(stack); 172450ce9ee0Sniklas tfp->tf_regs[FRAME_PS] = ALPHA_PSL_USERSET; 172550ce9ee0Sniklas tfp->tf_regs[FRAME_PC] = pack->ep_entry & ~3; 1726df930be7Sderaadt 172750ce9ee0Sniklas tfp->tf_regs[FRAME_A0] = stack; 172850ce9ee0Sniklas /* a1 and a2 already zeroed */ 172950ce9ee0Sniklas tfp->tf_regs[FRAME_T12] = tfp->tf_regs[FRAME_PC]; /* a.k.a. PV */ 173050ce9ee0Sniklas 173150ce9ee0Sniklas p->p_md.md_flags &= ~MDP_FPUSED; 1732433075b6Spvalchev #ifndef NO_IEEE 1733433075b6Spvalchev if (__predict_true((p->p_md.md_flags & IEEE_INHERIT) == 0)) { 1734433075b6Spvalchev p->p_md.md_flags &= ~MDP_FP_C; 1735433075b6Spvalchev p->p_addr->u_pcb.pcb_fp.fpr_cr = FPCR_DYN(FP_RN); 1736433075b6Spvalchev } 1737433075b6Spvalchev #endif 1738433075b6Spvalchev if (p->p_addr->u_pcb.pcb_fpcpu != NULL) 1739433075b6Spvalchev fpusave_proc(p, 0); 1740ee2d823aSmiod 1741ee2d823aSmiod retval[1] = 0; 1742433075b6Spvalchev } 1743df930be7Sderaadt 1744433075b6Spvalchev /* 1745433075b6Spvalchev * Release the FPU. 1746433075b6Spvalchev */ 1747433075b6Spvalchev void 1748433075b6Spvalchev fpusave_cpu(struct cpu_info *ci, int save) 1749433075b6Spvalchev { 1750433075b6Spvalchev struct proc *p; 175121c23d01Smiod #if defined(MULTIPROCESSOR) 175221c23d01Smiod int s; 175321c23d01Smiod #endif 1754433075b6Spvalchev 1755433075b6Spvalchev KDASSERT(ci == curcpu()); 1756433075b6Spvalchev 1757433075b6Spvalchev #if defined(MULTIPROCESSOR) 175821c23d01Smiod /* Need to block IPIs */ 17592d7472daSmiod s = splipi(); 1760433075b6Spvalchev atomic_setbits_ulong(&ci->ci_flags, CPUF_FPUSAVE); 1761433075b6Spvalchev #endif 1762433075b6Spvalchev 1763433075b6Spvalchev p = ci->ci_fpcurproc; 1764433075b6Spvalchev if (p == NULL) 1765433075b6Spvalchev goto out; 1766433075b6Spvalchev 1767433075b6Spvalchev if (save) { 1768433075b6Spvalchev alpha_pal_wrfen(1); 1769433075b6Spvalchev savefpstate(&p->p_addr->u_pcb.pcb_fp); 1770433075b6Spvalchev } 1771433075b6Spvalchev 1772433075b6Spvalchev alpha_pal_wrfen(0); 1773433075b6Spvalchev 1774433075b6Spvalchev p->p_addr->u_pcb.pcb_fpcpu = NULL; 1775433075b6Spvalchev ci->ci_fpcurproc = NULL; 1776433075b6Spvalchev 1777433075b6Spvalchev out: 1778433075b6Spvalchev #if defined(MULTIPROCESSOR) 1779433075b6Spvalchev atomic_clearbits_ulong(&ci->ci_flags, CPUF_FPUSAVE); 17804fa86cc0Smiod alpha_pal_swpipl(s); 1781433075b6Spvalchev #endif 1782433075b6Spvalchev return; 1783433075b6Spvalchev } 1784433075b6Spvalchev 1785433075b6Spvalchev /* 1786433075b6Spvalchev * Synchronize FP state for this process. 1787433075b6Spvalchev */ 1788433075b6Spvalchev void 1789433075b6Spvalchev fpusave_proc(struct proc *p, int save) 1790433075b6Spvalchev { 1791433075b6Spvalchev struct cpu_info *ci = curcpu(); 1792433075b6Spvalchev struct cpu_info *oci; 1793433075b6Spvalchev #if defined(MULTIPROCESSOR) 1794433075b6Spvalchev u_long ipi = save ? ALPHA_IPI_SYNCH_FPU : ALPHA_IPI_DISCARD_FPU; 17952d7472daSmiod int s; 1796433075b6Spvalchev #endif 1797433075b6Spvalchev 1798433075b6Spvalchev KDASSERT(p->p_addr != NULL); 1799433075b6Spvalchev 18002d7472daSmiod for (;;) { 180121c23d01Smiod #if defined(MULTIPROCESSOR) 180221c23d01Smiod /* Need to block IPIs */ 18032d7472daSmiod s = splipi(); 180421c23d01Smiod #endif 180521c23d01Smiod 1806433075b6Spvalchev oci = p->p_addr->u_pcb.pcb_fpcpu; 1807433075b6Spvalchev if (oci == NULL) { 180821c23d01Smiod #if defined(MULTIPROCESSOR) 18094fa86cc0Smiod alpha_pal_swpipl(s); 181021c23d01Smiod #endif 1811433075b6Spvalchev return; 1812433075b6Spvalchev } 1813433075b6Spvalchev 1814433075b6Spvalchev #if defined(MULTIPROCESSOR) 1815433075b6Spvalchev if (oci == ci) { 1816433075b6Spvalchev KASSERT(ci->ci_fpcurproc == p); 18174fa86cc0Smiod alpha_pal_swpipl(s); 1818433075b6Spvalchev fpusave_cpu(ci, save); 1819433075b6Spvalchev return; 1820433075b6Spvalchev } 1821433075b6Spvalchev 18222d7472daSmiod /* 18232d7472daSmiod * The other cpu may still be running and could have 18242d7472daSmiod * discarded the fpu context on its own. 18252d7472daSmiod */ 18262d7472daSmiod if (oci->ci_fpcurproc != p) 18272d7472daSmiod continue; 18282d7472daSmiod 1829433075b6Spvalchev alpha_send_ipi(oci->ci_cpuid, ipi); 18304fa86cc0Smiod alpha_pal_swpipl(s); 1831433075b6Spvalchev 18322d7472daSmiod while (p->p_addr->u_pcb.pcb_fpcpu != NULL) 18332d7472daSmiod SPINLOCK_SPIN_HOOK; 1834433075b6Spvalchev #else 1835433075b6Spvalchev KASSERT(ci->ci_fpcurproc == p); 1836433075b6Spvalchev fpusave_cpu(ci, save); 1837433075b6Spvalchev #endif /* MULTIPROCESSOR */ 18382d7472daSmiod 18392d7472daSmiod break; 18402d7472daSmiod } 1841df930be7Sderaadt } 1842df930be7Sderaadt 1843df930be7Sderaadt int 1844df930be7Sderaadt spl0() 1845df930be7Sderaadt { 1846df930be7Sderaadt 1847aed035abSart if (ssir) { 1848aed035abSart (void) alpha_pal_swpipl(ALPHA_PSL_IPL_SOFT); 18492a2685f2Sart softintr_dispatch(); 1850aed035abSart } 1851df930be7Sderaadt 185250ce9ee0Sniklas return (alpha_pal_swpipl(ALPHA_PSL_IPL_0)); 1853df930be7Sderaadt } 1854df930be7Sderaadt 1855df930be7Sderaadt /* 1856417eba8cSderaadt * Wait "n" microseconds. 1857417eba8cSderaadt */ 185850ce9ee0Sniklas void 1859417eba8cSderaadt delay(n) 186050ce9ee0Sniklas unsigned long n; 1861417eba8cSderaadt { 18625d097e9eSmiod unsigned long pcc0, pcc1, curcycle, cycles, usec; 18635d097e9eSmiod 18645d097e9eSmiod if (n == 0) 18655d097e9eSmiod return; 18665d097e9eSmiod 18675d097e9eSmiod pcc0 = alpha_rpcc() & 0xffffffffUL; 18685d097e9eSmiod cycles = 0; 18695d097e9eSmiod usec = 0; 18705d097e9eSmiod 18715d097e9eSmiod while (usec <= n) { 18725d097e9eSmiod /* 18735d097e9eSmiod * Get the next CPU cycle count - assumes that we can not 18745d097e9eSmiod * have had more than one 32 bit overflow. 18755d097e9eSmiod */ 18765d097e9eSmiod pcc1 = alpha_rpcc() & 0xffffffffUL; 18775d097e9eSmiod if (pcc1 < pcc0) 18785d097e9eSmiod curcycle = (pcc1 + 0x100000000UL) - pcc0; 18795d097e9eSmiod else 18805d097e9eSmiod curcycle = pcc1 - pcc0; 1881417eba8cSderaadt 1882aed035abSart /* 18835d097e9eSmiod * We now have the number of processor cycles since we 18845d097e9eSmiod * last checked. Add the current cycle count to the 18855d097e9eSmiod * running total. If it's over cycles_per_usec, increment 18865d097e9eSmiod * the usec counter. 1887aed035abSart */ 18885d097e9eSmiod cycles += curcycle; 188921c23d01Smiod while (cycles >= cycles_per_usec) { 18905d097e9eSmiod usec++; 18915d097e9eSmiod cycles -= cycles_per_usec; 18925d097e9eSmiod } 18935d097e9eSmiod pcc0 = pcc1; 18945d097e9eSmiod } 1895417eba8cSderaadt } 1896417eba8cSderaadt 1897aed035abSart int 1898aed035abSart alpha_pa_access(pa) 1899aed035abSart u_long pa; 1900aed035abSart { 1901aed035abSart int i; 1902aed035abSart 1903aed035abSart for (i = 0; i < mem_cluster_cnt; i++) { 1904aed035abSart if (pa < mem_clusters[i].start) 1905aed035abSart continue; 1906aed035abSart if ((pa - mem_clusters[i].start) >= 1907aed035abSart (mem_clusters[i].size & ~PAGE_MASK)) 1908aed035abSart continue; 1909aed035abSart return (mem_clusters[i].size & PAGE_MASK); /* prot */ 1910aed035abSart } 1911aed035abSart 1912aed035abSart /* 1913aed035abSart * Address is not a memory address. If we're secure, disallow 1914aed035abSart * access. Otherwise, grant read/write. 1915aed035abSart */ 1916aed035abSart if (securelevel > 0) 1917aed035abSart return (VM_PROT_NONE); 1918aed035abSart else 1919aed035abSart return (VM_PROT_READ | VM_PROT_WRITE); 1920aed035abSart } 1921aed035abSart 1922e464495eSniklas /* XXX XXX BEGIN XXX XXX */ 1923aed035abSart paddr_t alpha_XXX_dmamap_or; /* XXX */ 1924e464495eSniklas /* XXX */ 1925aed035abSart paddr_t /* XXX */ 1926e464495eSniklas alpha_XXX_dmamap(v) /* XXX */ 1927aed035abSart vaddr_t v; /* XXX */ 1928e464495eSniklas { /* XXX */ 1929e464495eSniklas /* XXX */ 1930e464495eSniklas return (vtophys(v) | alpha_XXX_dmamap_or); /* XXX */ 1931e464495eSniklas } /* XXX */ 1932e464495eSniklas /* XXX XXX END XXX XXX */ 1933