1*275e6a2fSmpi /* $OpenBSD: machdep.c,v 1.181 2017/05/29 14:19:49 mpi 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 int allowaperture = 0; 15127626149Smatthieu #endif 15227626149Smatthieu 153df930be7Sderaadt int totalphysmem; /* total amount of physical memory in system */ 15474652a67Sniklas int physmem; /* physical mem used by OpenBSD + some rsvd */ 155df930be7Sderaadt int resvmem; /* amount of memory reserved for PROM */ 156df930be7Sderaadt int unusedmem; /* amount of memory for OS that we don't use */ 157df930be7Sderaadt int unknownmem; /* amount of memory with an unknown use */ 158df930be7Sderaadt 159df930be7Sderaadt int cputype; /* system type, from the RPB */ 160df930be7Sderaadt 1612a2685f2Sart int bootdev_debug = 0; /* patchable, or from DDB */ 1622a2685f2Sart 163df930be7Sderaadt /* the following is used externally (sysctl_hw) */ 164aed035abSart char machine[] = MACHINE; /* from <machine/param.h> */ 165417eba8cSderaadt char cpu_model[128]; 166df930be7Sderaadt 167df930be7Sderaadt struct user *proc0paddr; 168df930be7Sderaadt 169df930be7Sderaadt /* Number of machine cycles per microsecond */ 170df930be7Sderaadt u_int64_t cycles_per_usec; 171df930be7Sderaadt 172aed035abSart struct bootinfo_kernel bootinfo; 173aed035abSart 174b1560ceaSmiod struct consdev *cn_tab; 175b1560ceaSmiod 176aed035abSart /* For built-in TCDS */ 177aed035abSart #if defined(DEC_3000_300) || defined(DEC_3000_500) 178aed035abSart u_int8_t dec_3000_scsiid[2], dec_3000_scsifast[2]; 179aed035abSart #endif 180aed035abSart 181aed035abSart struct platform platform; 182417eba8cSderaadt 183417eba8cSderaadt /* for cpu_sysctl() */ 18450ce9ee0Sniklas int alpha_unaligned_print = 1; /* warn about unaligned accesses */ 18550ce9ee0Sniklas int alpha_unaligned_fix = 1; /* fix up unaligned accesses */ 186881c1eabSart int alpha_unaligned_sigbus = 1; /* SIGBUS on fixed-up accesses */ 187433075b6Spvalchev #ifndef NO_IEEE 188433075b6Spvalchev int alpha_fp_sync_complete = 0; /* fp fixup if sync even without /s */ 189433075b6Spvalchev #endif 190a072164aSmiod #if NIOASIC > 0 19191c0e687Sderaadt int alpha_led_blink = 1; 192a072164aSmiod #endif 19350ce9ee0Sniklas 194b3cee53eSmartin /* used by hw_sysctl */ 195b3cee53eSmartin extern char *hw_serial; 196b3cee53eSmartin 197aed035abSart /* 198aed035abSart * XXX This should be dynamically sized, but we have the chicken-egg problem! 199aed035abSart * XXX it should also be larger than it is, because not all of the mddt 200aed035abSart * XXX clusters end up being used for VM. 201aed035abSart */ 202aed035abSart phys_ram_seg_t mem_clusters[VM_PHYSSEG_MAX]; /* low size bits overloaded */ 203aed035abSart int mem_cluster_cnt; 204aed035abSart 2053a630e3fSniklas void 206dd3e8537Smiod alpha_init(unused, ptb, bim, bip, biv) 207dd3e8537Smiod u_long unused; 208df930be7Sderaadt u_long ptb; /* PFN of current level 1 page table */ 209aed035abSart u_long bim; /* bootinfo magic */ 210aed035abSart u_long bip; /* bootinfo pointer */ 211aed035abSart u_long biv; /* bootinfo version */ 212df930be7Sderaadt { 213aed035abSart extern char kernel_text[], _end[]; 214df930be7Sderaadt struct mddt *mddtp; 215aed035abSart struct mddt_cluster *memc; 216df930be7Sderaadt int i, mddtweird; 217aed035abSart struct vm_physseg *vps; 218aed035abSart vaddr_t kernstart, kernend; 219aed035abSart paddr_t kernstartpfn, kernendpfn, pfn0, pfn1; 220df930be7Sderaadt char *p; 2212a2685f2Sart const char *bootinfo_msg; 222aed035abSart const struct cpuinit *c; 223aed035abSart extern caddr_t esym; 224aed035abSart struct cpu_info *ci; 225aed035abSart cpuid_t cpu_id; 226df930be7Sderaadt 227aed035abSart /* NO OUTPUT ALLOWED UNTIL FURTHER NOTICE */ 228f3914c62Sniklas 229df930be7Sderaadt /* 230aed035abSart * Turn off interrupts (not mchecks) and floating point. 231df930be7Sderaadt * Make sure the instruction and data streams are consistent. 232df930be7Sderaadt */ 233aed035abSart (void)alpha_pal_swpipl(ALPHA_PSL_IPL_HIGH); 23450ce9ee0Sniklas alpha_pal_wrfen(0); 23550ce9ee0Sniklas ALPHA_TBIA(); 23650ce9ee0Sniklas alpha_pal_imb(); 237df930be7Sderaadt 238c62181b1Sbrad /* Initialize the SCB. */ 239c62181b1Sbrad scb_init(); 240c62181b1Sbrad 241aed035abSart cpu_id = cpu_number(); 242aed035abSart 243aed035abSart #if defined(MULTIPROCESSOR) 244df930be7Sderaadt /* 245aed035abSart * Set our SysValue to the address of our cpu_info structure. 246aed035abSart * Secondary processors do this in their spinup trampoline. 247df930be7Sderaadt */ 24821c23d01Smiod alpha_pal_wrval((u_long)&cpu_info_primary); 24921c23d01Smiod cpu_info[cpu_id] = &cpu_info_primary; 250aed035abSart #endif 251aed035abSart 252aed035abSart ci = curcpu(); 253aed035abSart ci->ci_cpuid = cpu_id; 254aed035abSart 255aed035abSart /* 256aed035abSart * Get critical system information (if possible, from the 257aed035abSart * information provided by the boot program). 258aed035abSart */ 259aed035abSart bootinfo_msg = NULL; 260aed035abSart if (bim == BOOTINFO_MAGIC) { 261aed035abSart if (biv == 0) { /* backward compat */ 262aed035abSart biv = *(u_long *)bip; 263aed035abSart bip += 8; 264aed035abSart } 265aed035abSart switch (biv) { 266aed035abSart case 1: { 267aed035abSart struct bootinfo_v1 *v1p = (struct bootinfo_v1 *)bip; 268aed035abSart 269aed035abSart bootinfo.ssym = v1p->ssym; 270aed035abSart bootinfo.esym = v1p->esym; 271aed035abSart /* hwrpb may not be provided by boot block in v1 */ 272aed035abSart if (v1p->hwrpb != NULL) { 273aed035abSart bootinfo.hwrpb_phys = 274aed035abSart ((struct rpb *)v1p->hwrpb)->rpb_phys; 275aed035abSart bootinfo.hwrpb_size = v1p->hwrpbsize; 276aed035abSart } else { 277aed035abSart bootinfo.hwrpb_phys = 278aed035abSart ((struct rpb *)HWRPB_ADDR)->rpb_phys; 279aed035abSart bootinfo.hwrpb_size = 280aed035abSart ((struct rpb *)HWRPB_ADDR)->rpb_size; 281aed035abSart } 282aed035abSart bcopy(v1p->boot_flags, bootinfo.boot_flags, 283aed035abSart min(sizeof v1p->boot_flags, 284aed035abSart sizeof bootinfo.boot_flags)); 285aed035abSart bcopy(v1p->booted_kernel, bootinfo.booted_kernel, 286aed035abSart min(sizeof v1p->booted_kernel, 287aed035abSart sizeof bootinfo.booted_kernel)); 288aed035abSart /* booted dev not provided in bootinfo */ 289aed035abSart init_prom_interface((struct rpb *) 290aed035abSart ALPHA_PHYS_TO_K0SEG(bootinfo.hwrpb_phys)); 291aed035abSart prom_getenv(PROM_E_BOOTED_DEV, bootinfo.booted_dev, 292aed035abSart sizeof bootinfo.booted_dev); 293aed035abSart break; 294aed035abSart } 295aed035abSart default: 296aed035abSart bootinfo_msg = "unknown bootinfo version"; 297aed035abSart goto nobootinfo; 298aed035abSart } 299aed035abSart } else { 300aed035abSart bootinfo_msg = "boot program did not pass bootinfo"; 301aed035abSart nobootinfo: 302aed035abSart bootinfo.ssym = (u_long)_end; 303aed035abSart bootinfo.esym = (u_long)_end; 304aed035abSart bootinfo.hwrpb_phys = ((struct rpb *)HWRPB_ADDR)->rpb_phys; 305aed035abSart bootinfo.hwrpb_size = ((struct rpb *)HWRPB_ADDR)->rpb_size; 306aed035abSart init_prom_interface((struct rpb *)HWRPB_ADDR); 307aed035abSart prom_getenv(PROM_E_BOOTED_OSFLAGS, bootinfo.boot_flags, 308aed035abSart sizeof bootinfo.boot_flags); 309aed035abSart prom_getenv(PROM_E_BOOTED_FILE, bootinfo.booted_kernel, 310aed035abSart sizeof bootinfo.booted_kernel); 311aed035abSart prom_getenv(PROM_E_BOOTED_DEV, bootinfo.booted_dev, 312aed035abSart sizeof bootinfo.booted_dev); 313aed035abSart } 314aed035abSart 315aed035abSart esym = (caddr_t)bootinfo.esym; 316aed035abSart /* 317aed035abSart * Initialize the kernel's mapping of the RPB. It's needed for 318aed035abSart * lots of things. 319aed035abSart */ 320aed035abSart hwrpb = (struct rpb *)ALPHA_PHYS_TO_K0SEG(bootinfo.hwrpb_phys); 321aed035abSart 322aed035abSart #if defined(DEC_3000_300) || defined(DEC_3000_500) 323aed035abSart if (hwrpb->rpb_type == ST_DEC_3000_300 || 324aed035abSart hwrpb->rpb_type == ST_DEC_3000_500) { 325aed035abSart prom_getenv(PROM_E_SCSIID, dec_3000_scsiid, 326aed035abSart sizeof(dec_3000_scsiid)); 327aed035abSart prom_getenv(PROM_E_SCSIFAST, dec_3000_scsifast, 328aed035abSart sizeof(dec_3000_scsifast)); 329aed035abSart } 330aed035abSart #endif 331df930be7Sderaadt 332df930be7Sderaadt /* 333df930be7Sderaadt * Remember how many cycles there are per microsecond, 334df930be7Sderaadt * so that we can use delay(). Round up, for safety. 335df930be7Sderaadt */ 336df930be7Sderaadt cycles_per_usec = (hwrpb->rpb_cc_freq + 999999) / 1000000; 337df930be7Sderaadt 338df930be7Sderaadt /* 3399e71c994Saaron * Initialize the (temporary) bootstrap console interface, so 340aed035abSart * we can use printf until the VM system starts being setup. 341aed035abSart * The real console is initialized before then. 342df930be7Sderaadt */ 343aed035abSart init_bootstrap_console(); 344aed035abSart 345aed035abSart /* OUTPUT NOW ALLOWED */ 346aed035abSart 347aed035abSart /* delayed from above */ 348aed035abSart if (bootinfo_msg) 349aed035abSart printf("WARNING: %s (0x%lx, 0x%lx, 0x%lx)\n", 350aed035abSart bootinfo_msg, bim, bip, biv); 351aed035abSart 352aed035abSart /* Initialize the trap vectors on the primary processor. */ 353aed035abSart trap_init(); 354df930be7Sderaadt 355df930be7Sderaadt /* 356aed035abSart * Find out what hardware we're on, and do basic initialization. 357df930be7Sderaadt */ 358aed035abSart cputype = hwrpb->rpb_type; 359aed035abSart if (cputype < 0) { 360aed035abSart /* 361aed035abSart * At least some white-box systems have SRM which 362aed035abSart * reports a systype that's the negative of their 363aed035abSart * blue-box counterpart. 364aed035abSart */ 365aed035abSart cputype = -cputype; 366aed035abSart } 367aed035abSart c = platform_lookup(cputype); 368aed035abSart if (c == NULL) { 369aed035abSart platform_not_supported(); 370aed035abSart /* NOTREACHED */ 371aed035abSart } 372aed035abSart (*c->init)(); 373094fa01fSderaadt strlcpy(cpu_model, platform.model, sizeof cpu_model); 37450ce9ee0Sniklas 37550ce9ee0Sniklas /* 3769e71c994Saaron * Initialize the real console, so that the bootstrap console is 377aed035abSart * no longer necessary. 37850ce9ee0Sniklas */ 379aed035abSart (*platform.cons_init)(); 380aed035abSart 381a55851f4Sderaadt #if 0 382aed035abSart /* Paranoid sanity checking */ 383aed035abSart 384aed035abSart assert(hwrpb->rpb_primary_cpu_id == alpha_pal_whami()); 385aed035abSart 386aed035abSart /* 387aed035abSart * On single-CPU systypes, the primary should always be CPU 0, 388aed035abSart * except on Alpha 8200 systems where the CPU id is related 389aed035abSart * to the VID, which is related to the Turbo Laser node id. 390aed035abSart */ 391aed035abSart if (cputype != ST_DEC_21000) 392aed035abSart assert(hwrpb->rpb_primary_cpu_id == 0); 393aed035abSart #endif 394aed035abSart 395aed035abSart /* NO MORE FIRMWARE ACCESS ALLOWED */ 396aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 397aed035abSart /* 398aed035abSart * XXX (unless _PMAP_MAY_USE_PROM_CONSOLE is defined and 399aed035abSart * XXX pmap_uses_prom_console() evaluates to non-zero.) 400aed035abSart */ 401aed035abSart #endif 402aed035abSart 403cfcdef40Smiod #ifndef SMALL_KERNEL 404cfcdef40Smiod /* 405cfcdef40Smiod * If we run on a BWX-capable processor, override cpu_switch 406cfcdef40Smiod * with a faster version. 407cfcdef40Smiod * We do this now because the kernel text might be mapped 408cfcdef40Smiod * read-only eventually (although this is not the case at the moment). 409cfcdef40Smiod */ 410cfcdef40Smiod if (alpha_implver() >= ALPHA_IMPLVER_EV5) { 411cfcdef40Smiod if (~alpha_amask(ALPHA_AMASK_BWX) != 0) { 412cfcdef40Smiod extern vaddr_t __bwx_switch0, __bwx_switch1, 413cfcdef40Smiod __bwx_switch2, __bwx_switch3; 414cfcdef40Smiod u_int32_t *dst, *src, *end; 415cfcdef40Smiod 416cfcdef40Smiod src = (u_int32_t *)&__bwx_switch2; 417cfcdef40Smiod end = (u_int32_t *)&__bwx_switch3; 418cfcdef40Smiod dst = (u_int32_t *)&__bwx_switch0; 419cfcdef40Smiod while (src != end) 420cfcdef40Smiod *dst++ = *src++; 421cfcdef40Smiod src = (u_int32_t *)&__bwx_switch1; 422cfcdef40Smiod end = (u_int32_t *)&__bwx_switch2; 423cfcdef40Smiod while (src != end) 424cfcdef40Smiod *dst++ = *src++; 425cfcdef40Smiod } 426cfcdef40Smiod } 427cfcdef40Smiod #endif 428cfcdef40Smiod 429aed035abSart /* 430aed035abSart * find out this system's page size 431aed035abSart */ 43273b9fe7cSart if ((uvmexp.pagesize = hwrpb->rpb_page_size) != 8192) 43373b9fe7cSart panic("page size %d != 8192?!", uvmexp.pagesize); 434aed035abSart 435aed035abSart uvm_setpagesize(); 436aed035abSart 437aed035abSart /* 438aed035abSart * Find the beginning and end of the kernel (and leave a 439aed035abSart * bit of space before the beginning for the bootstrap 440aed035abSart * stack). 441aed035abSart */ 442aed035abSart kernstart = trunc_page((vaddr_t)kernel_text) - 2 * PAGE_SIZE; 443aed035abSart kernend = (vaddr_t)round_page((vaddr_t)bootinfo.esym); 444aed035abSart 445aed035abSart kernstartpfn = atop(ALPHA_K0SEG_TO_PHYS(kernstart)); 446aed035abSart kernendpfn = atop(ALPHA_K0SEG_TO_PHYS(kernend)); 447df930be7Sderaadt 448df930be7Sderaadt /* 449df930be7Sderaadt * Find out how much memory is available, by looking at 450df930be7Sderaadt * the memory cluster descriptors. This also tries to do 451df930be7Sderaadt * its best to detect things things that have never been seen 452df930be7Sderaadt * before... 453df930be7Sderaadt */ 454df930be7Sderaadt mddtp = (struct mddt *)(((caddr_t)hwrpb) + hwrpb->rpb_memdat_off); 455df930be7Sderaadt 456aed035abSart /* MDDT SANITY CHECKING */ 457df930be7Sderaadt mddtweird = 0; 458aed035abSart if (mddtp->mddt_cluster_cnt < 2) { 459df930be7Sderaadt mddtweird = 1; 460aed035abSart printf("WARNING: weird number of mem clusters: %lu\n", 461e86d96d5Smiod (unsigned long)mddtp->mddt_cluster_cnt); 462df930be7Sderaadt } 463df930be7Sderaadt 464aed035abSart #if 0 465aed035abSart printf("Memory cluster count: %d\n", mddtp->mddt_cluster_cnt); 466aed035abSart #endif 467df930be7Sderaadt 468aed035abSart for (i = 0; i < mddtp->mddt_cluster_cnt; i++) { 469aed035abSart memc = &mddtp->mddt_clusters[i]; 470aed035abSart #if 0 471aed035abSart printf("MEMC %d: pfn 0x%lx cnt 0x%lx usage 0x%lx\n", i, 472aed035abSart memc->mddt_pfn, memc->mddt_pg_cnt, memc->mddt_usage); 473aed035abSart #endif 474aed035abSart totalphysmem += memc->mddt_pg_cnt; 475aed035abSart if (mem_cluster_cnt < VM_PHYSSEG_MAX) { /* XXX */ 476aed035abSart mem_clusters[mem_cluster_cnt].start = 477aed035abSart ptoa(memc->mddt_pfn); 478aed035abSart mem_clusters[mem_cluster_cnt].size = 479aed035abSart ptoa(memc->mddt_pg_cnt); 480aed035abSart if (memc->mddt_usage & MDDT_mbz || 481aed035abSart memc->mddt_usage & MDDT_NONVOLATILE || /* XXX */ 482aed035abSart memc->mddt_usage & MDDT_PALCODE) 483aed035abSart mem_clusters[mem_cluster_cnt].size |= 4841e8cdc2eSderaadt PROT_READ; 485aed035abSart else 486aed035abSart mem_clusters[mem_cluster_cnt].size |= 4871e8cdc2eSderaadt PROT_READ | PROT_WRITE | PROT_EXEC; 488aed035abSart mem_cluster_cnt++; 489ee2d823aSmiod } /* XXX else print something! */ 490aed035abSart 491aed035abSart if (memc->mddt_usage & MDDT_mbz) { 492aed035abSart mddtweird = 1; 493aed035abSart printf("WARNING: mem cluster %d has weird " 494e86d96d5Smiod "usage 0x%lx\n", i, (long)memc->mddt_usage); 495aed035abSart unknownmem += memc->mddt_pg_cnt; 496aed035abSart continue; 497aed035abSart } 498aed035abSart if (memc->mddt_usage & MDDT_NONVOLATILE) { 499aed035abSart /* XXX should handle these... */ 500aed035abSart printf("WARNING: skipping non-volatile mem " 501aed035abSart "cluster %d\n", i); 502aed035abSart unusedmem += memc->mddt_pg_cnt; 503aed035abSart continue; 504aed035abSart } 505aed035abSart if (memc->mddt_usage & MDDT_PALCODE) { 506aed035abSart resvmem += memc->mddt_pg_cnt; 507aed035abSart continue; 508aed035abSart } 509aed035abSart 510aed035abSart /* 511aed035abSart * We have a memory cluster available for system 512aed035abSart * software use. We must determine if this cluster 513aed035abSart * holds the kernel. 514aed035abSart */ 515aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 516aed035abSart /* 517aed035abSart * XXX If the kernel uses the PROM console, we only use the 518aed035abSart * XXX memory after the kernel in the first system segment, 519aed035abSart * XXX to avoid clobbering prom mapping, data, etc. 520aed035abSart */ 521aed035abSart if (!pmap_uses_prom_console() || physmem == 0) { 522aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 523aed035abSart physmem += memc->mddt_pg_cnt; 524aed035abSart pfn0 = memc->mddt_pfn; 525aed035abSart pfn1 = memc->mddt_pfn + memc->mddt_pg_cnt; 526aed035abSart if (pfn0 <= kernstartpfn && kernendpfn <= pfn1) { 527aed035abSart /* 528aed035abSart * Must compute the location of the kernel 529aed035abSart * within the segment. 530aed035abSart */ 531aed035abSart #if 0 532aed035abSart printf("Cluster %d contains kernel\n", i); 533aed035abSart #endif 534aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 535aed035abSart if (!pmap_uses_prom_console()) { 536aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 537aed035abSart if (pfn0 < kernstartpfn) { 538aed035abSart /* 539aed035abSart * There is a chunk before the kernel. 540aed035abSart */ 541aed035abSart #if 0 542aed035abSart printf("Loading chunk before kernel: " 543aed035abSart "0x%lx / 0x%lx\n", pfn0, kernstartpfn); 544aed035abSart #endif 545aed035abSart uvm_page_physload(pfn0, kernstartpfn, 5462ce3b4a8Soga pfn0, kernstartpfn, 0); 547aed035abSart } 548aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 549aed035abSart } 550aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 551aed035abSart if (kernendpfn < pfn1) { 552aed035abSart /* 553aed035abSart * There is a chunk after the kernel. 554aed035abSart */ 555aed035abSart #if 0 556aed035abSart printf("Loading chunk after kernel: " 557aed035abSart "0x%lx / 0x%lx\n", kernendpfn, pfn1); 558aed035abSart #endif 559aed035abSart uvm_page_physload(kernendpfn, pfn1, 5602ce3b4a8Soga kernendpfn, pfn1, 0); 561aed035abSart } 562aed035abSart } else { 563aed035abSart /* 564aed035abSart * Just load this cluster as one chunk. 565aed035abSart */ 566aed035abSart #if 0 567aed035abSart printf("Loading cluster %d: 0x%lx / 0x%lx\n", i, 568aed035abSart pfn0, pfn1); 569aed035abSart #endif 5702ce3b4a8Soga uvm_page_physload(pfn0, pfn1, pfn0, pfn1, 0); 571aed035abSart } 572aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 573aed035abSart } 574aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 575aed035abSart } 576aed035abSart 577a37778bcSderaadt #ifdef DEBUG 578aed035abSart /* 579aed035abSart * Dump out the MDDT if it looks odd... 580aed035abSart */ 581df930be7Sderaadt if (mddtweird) { 582df930be7Sderaadt printf("\n"); 583df930be7Sderaadt printf("complete memory cluster information:\n"); 584df930be7Sderaadt for (i = 0; i < mddtp->mddt_cluster_cnt; i++) { 585df930be7Sderaadt printf("mddt %d:\n", i); 586df930be7Sderaadt printf("\tpfn %lx\n", 587df930be7Sderaadt mddtp->mddt_clusters[i].mddt_pfn); 588df930be7Sderaadt printf("\tcnt %lx\n", 589df930be7Sderaadt mddtp->mddt_clusters[i].mddt_pg_cnt); 590df930be7Sderaadt printf("\ttest %lx\n", 591df930be7Sderaadt mddtp->mddt_clusters[i].mddt_pg_test); 592df930be7Sderaadt printf("\tbva %lx\n", 593df930be7Sderaadt mddtp->mddt_clusters[i].mddt_v_bitaddr); 594df930be7Sderaadt printf("\tbpa %lx\n", 595df930be7Sderaadt mddtp->mddt_clusters[i].mddt_p_bitaddr); 596df930be7Sderaadt printf("\tbcksum %lx\n", 597df930be7Sderaadt mddtp->mddt_clusters[i].mddt_bit_cksum); 598df930be7Sderaadt printf("\tusage %lx\n", 599df930be7Sderaadt mddtp->mddt_clusters[i].mddt_usage); 600df930be7Sderaadt } 601df930be7Sderaadt printf("\n"); 602df930be7Sderaadt } 603a37778bcSderaadt #endif 604df930be7Sderaadt 605df930be7Sderaadt if (totalphysmem == 0) 606df930be7Sderaadt panic("can't happen: system seems to have no memory!"); 607df930be7Sderaadt #if 0 608f46637d1Sderaadt printf("totalphysmem = %u\n", totalphysmem); 609f46637d1Sderaadt printf("physmem = %u\n", physmem); 610df930be7Sderaadt printf("resvmem = %d\n", resvmem); 611df930be7Sderaadt printf("unusedmem = %d\n", unusedmem); 612df930be7Sderaadt printf("unknownmem = %d\n", unknownmem); 613df930be7Sderaadt #endif 614df930be7Sderaadt 615df930be7Sderaadt /* 616aed035abSart * Initialize error message buffer (at end of core). 617df930be7Sderaadt */ 618aed035abSart { 619aed035abSart vsize_t sz = (vsize_t)round_page(MSGBUFSIZE); 620aed035abSart vsize_t reqsz = sz; 621df930be7Sderaadt 622aed035abSart vps = &vm_physmem[vm_nphysseg - 1]; 623e1da84e1Salex 624aed035abSart /* shrink so that it'll fit in the last segment */ 625aed035abSart if ((vps->avail_end - vps->avail_start) < atop(sz)) 626aed035abSart sz = ptoa(vps->avail_end - vps->avail_start); 627aed035abSart 628aed035abSart vps->end -= atop(sz); 629aed035abSart vps->avail_end -= atop(sz); 630aed035abSart initmsgbuf((caddr_t) ALPHA_PHYS_TO_K0SEG(ptoa(vps->end)), sz); 631aed035abSart 632aed035abSart /* Remove the last segment if it now has no pages. */ 633aed035abSart if (vps->start == vps->end) 634aed035abSart vm_nphysseg--; 635aed035abSart 636aed035abSart /* warn if the message buffer had to be shrunk */ 637aed035abSart if (sz != reqsz) 638aed035abSart printf("WARNING: %ld bytes not available for msgbuf " 639aed035abSart "in last cluster (%ld used)\n", reqsz, sz); 640aed035abSart 641aed035abSart } 642aed035abSart 643df930be7Sderaadt /* 644df930be7Sderaadt * Init mapping for u page(s) for proc 0 645df930be7Sderaadt */ 646aed035abSart proc0.p_addr = proc0paddr = 647aed035abSart (struct user *)pmap_steal_memory(UPAGES * PAGE_SIZE, NULL, NULL); 648df930be7Sderaadt 649df930be7Sderaadt /* 650df930be7Sderaadt * Initialize the virtual memory system, and set the 651df930be7Sderaadt * page table base register in proc 0's PCB. 652df930be7Sderaadt */ 653aed035abSart pmap_bootstrap(ALPHA_PHYS_TO_K0SEG(ptb << PGSHIFT), 654aed035abSart hwrpb->rpb_max_asn, hwrpb->rpb_pcs_cnt); 655df930be7Sderaadt 656df930be7Sderaadt /* 657df930be7Sderaadt * Initialize the rest of proc 0's PCB, and cache its physical 658df930be7Sderaadt * address. 659df930be7Sderaadt */ 660df930be7Sderaadt proc0.p_md.md_pcbpaddr = 661aed035abSart (struct pcb *)ALPHA_K0SEG_TO_PHYS((vaddr_t)&proc0paddr->u_pcb); 662df930be7Sderaadt 663df930be7Sderaadt /* 664df930be7Sderaadt * Set the kernel sp, reserving space for an (empty) trapframe, 665df930be7Sderaadt * and make proc0's trapframe pointer point to it for sanity. 666df930be7Sderaadt */ 66750ce9ee0Sniklas proc0paddr->u_pcb.pcb_hw.apcb_ksp = 668df930be7Sderaadt (u_int64_t)proc0paddr + USPACE - sizeof(struct trapframe); 66974652a67Sniklas proc0.p_md.md_tf = 67074652a67Sniklas (struct trapframe *)proc0paddr->u_pcb.pcb_hw.apcb_ksp; 67150ce9ee0Sniklas 672aed035abSart /* 673aed035abSart * Initialize the primary CPU's idle PCB to proc0's. In a 674aed035abSart * MULTIPROCESSOR configuration, each CPU will later get 675aed035abSart * its own idle PCB when autoconfiguration runs. 676aed035abSart */ 677aed035abSart ci->ci_idle_pcb = &proc0paddr->u_pcb; 678aed035abSart ci->ci_idle_pcb_paddr = (u_long)proc0.p_md.md_pcbpaddr; 679df930be7Sderaadt 680df930be7Sderaadt /* 681df930be7Sderaadt * Look at arguments passed to us and compute boothowto. 682df930be7Sderaadt */ 683417eba8cSderaadt 684aed035abSart for (p = bootinfo.boot_flags; p && *p != '\0'; p++) { 685417eba8cSderaadt /* 686417eba8cSderaadt * Note that we'd really like to differentiate case here, 687417eba8cSderaadt * but the Alpha AXP Architecture Reference Manual 688417eba8cSderaadt * says that we shouldn't. 689417eba8cSderaadt */ 690df930be7Sderaadt switch (*p) { 691371c77f5Smartin case 'a': /* Ignore */ 692417eba8cSderaadt case 'A': 693df930be7Sderaadt break; 694df930be7Sderaadt 69512f8bbedSniklas case 'b': /* Enter DDB as soon as the console is initialised */ 69612f8bbedSniklas case 'B': 69712f8bbedSniklas boothowto |= RB_KDB; 69812f8bbedSniklas break; 69912f8bbedSniklas 70050ce9ee0Sniklas case 'c': /* enter user kernel configuration */ 70150ce9ee0Sniklas case 'C': 70250ce9ee0Sniklas boothowto |= RB_CONFIG; 70350ce9ee0Sniklas break; 70450ce9ee0Sniklas 70550ce9ee0Sniklas #ifdef DEBUG 70650ce9ee0Sniklas case 'd': /* crash dump immediately after autoconfig */ 70750ce9ee0Sniklas case 'D': 70850ce9ee0Sniklas boothowto |= RB_DUMP; 70950ce9ee0Sniklas break; 71050ce9ee0Sniklas #endif 71150ce9ee0Sniklas 71250ce9ee0Sniklas case 'h': /* always halt, never reboot */ 71350ce9ee0Sniklas case 'H': 71450ce9ee0Sniklas boothowto |= RB_HALT; 715df930be7Sderaadt break; 716df930be7Sderaadt 71750ce9ee0Sniklas 71850ce9ee0Sniklas case 'n': /* askname */ 71950ce9ee0Sniklas case 'N': 72050ce9ee0Sniklas boothowto |= RB_ASKNAME; 72150ce9ee0Sniklas break; 722aed035abSart 723371c77f5Smartin case 's': /* single-user */ 724aed035abSart case 'S': 725aed035abSart boothowto |= RB_SINGLE; 726aed035abSart break; 727aed035abSart 728aed035abSart case '-': 729aed035abSart /* 730aed035abSart * Just ignore this. It's not required, but it's 731aed035abSart * common for it to be passed regardless. 732aed035abSart */ 733aed035abSart break; 734aed035abSart 735aed035abSart default: 736aed035abSart printf("Unrecognized boot flag '%c'.\n", *p); 737aed035abSart break; 738df930be7Sderaadt } 739df930be7Sderaadt } 740df930be7Sderaadt 741aed035abSart 742df930be7Sderaadt /* 743df930be7Sderaadt * Figure out the number of cpus in the box, from RPB fields. 744df930be7Sderaadt * Really. We mean it. 745df930be7Sderaadt */ 74631326ec3Smiod for (ncpusfound = 0, i = 0; i < hwrpb->rpb_pcs_cnt; i++) { 747df930be7Sderaadt struct pcs *pcsp; 748df930be7Sderaadt 749aed035abSart pcsp = LOCATE_PCS(hwrpb, i); 750df930be7Sderaadt if ((pcsp->pcs_flags & PCS_PP) != 0) 75131326ec3Smiod ncpusfound++; 752df930be7Sderaadt } 753aed035abSart 754aed035abSart /* 755aed035abSart * Initialize debuggers, and break into them if appropriate. 756aed035abSart */ 757aed035abSart #ifdef DDB 75821c23d01Smiod db_machine_init(); 759aed035abSart ddb_init(); 760aed035abSart 761aed035abSart if (boothowto & RB_KDB) 762e97088d6Smpi db_enter(); 763aed035abSart #endif 764aed035abSart /* 765aed035abSart * Figure out our clock frequency, from RPB fields. 766aed035abSart */ 767aed035abSart hz = hwrpb->rpb_intr_freq >> 12; 768aed035abSart if (!(60 <= hz && hz <= 10240)) { 769aed035abSart #ifdef DIAGNOSTIC 770e86d96d5Smiod printf("WARNING: unbelievable rpb_intr_freq: %lu (%d hz)\n", 771e86d96d5Smiod (unsigned long)hwrpb->rpb_intr_freq, hz); 772aed035abSart #endif 773dd3e8537Smiod hz = 1024; 774aed035abSart } 775aed035abSart } 776aed035abSart 777417eba8cSderaadt void 778df930be7Sderaadt consinit() 779df930be7Sderaadt { 780aed035abSart 781aed035abSart /* 782aed035abSart * Everything related to console initialization is done 783aed035abSart * in alpha_init(). 784aed035abSart */ 785aed035abSart #if defined(DIAGNOSTIC) && defined(_PMAP_MAY_USE_PROM_CONSOLE) 786aed035abSart printf("consinit: %susing prom console\n", 787aed035abSart pmap_uses_prom_console() ? "" : "not "); 78812f8bbedSniklas #endif 789df930be7Sderaadt } 790df930be7Sderaadt 791417eba8cSderaadt void 792df930be7Sderaadt cpu_startup() 793df930be7Sderaadt { 794aed035abSart vaddr_t minaddr, maxaddr; 79550ce9ee0Sniklas #if defined(DEBUG) 796df930be7Sderaadt extern int pmapdebug; 797df930be7Sderaadt int opmapdebug = pmapdebug; 798df930be7Sderaadt 799df930be7Sderaadt pmapdebug = 0; 800df930be7Sderaadt #endif 801df930be7Sderaadt 802df930be7Sderaadt /* 803df930be7Sderaadt * Good {morning,afternoon,evening,night}. 804df930be7Sderaadt */ 805df930be7Sderaadt printf(version); 806df930be7Sderaadt identifycpu(); 807701cd583Smiod printf("real mem = %lu (%luMB)\n", ptoa((psize_t)totalphysmem), 808701cd583Smiod ptoa((psize_t)totalphysmem) / 1024 / 1024); 809701cd583Smiod printf("rsvd mem = %lu (%luMB)\n", ptoa((psize_t)resvmem), 810701cd583Smiod ptoa((psize_t)resvmem) / 1024 / 1024); 811aed035abSart if (unusedmem) { 812701cd583Smiod printf("WARNING: unused memory = %lu (%luMB)\n", 813701cd583Smiod ptoa((psize_t)unusedmem), 814701cd583Smiod ptoa((psize_t)unusedmem) / 1024 / 1024); 815aed035abSart } 816aed035abSart if (unknownmem) { 817701cd583Smiod printf("WARNING: %lu (%luMB) of memory with unknown purpose\n", 818701cd583Smiod ptoa((psize_t)unknownmem), 819701cd583Smiod ptoa((psize_t)unknownmem) / 1024 / 1024); 820aed035abSart } 821df930be7Sderaadt 822df930be7Sderaadt /* 823df930be7Sderaadt * Allocate a submap for exec arguments. This map effectively 824df930be7Sderaadt * limits the number of processes exec'ing at any time. 825df930be7Sderaadt */ 8267c10a71dSdrahn minaddr = vm_map_min(kernel_map); 827aed035abSart exec_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 828aed035abSart 16 * NCARGS, VM_MAP_PAGEABLE, FALSE, NULL); 829df930be7Sderaadt 830df930be7Sderaadt /* 831df930be7Sderaadt * Allocate a submap for physio 832df930be7Sderaadt */ 833aed035abSart phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 834aed035abSart VM_PHYS_SIZE, 0, FALSE, NULL); 835df930be7Sderaadt 83650ce9ee0Sniklas #if defined(DEBUG) 837df930be7Sderaadt pmapdebug = opmapdebug; 838df930be7Sderaadt #endif 839701cd583Smiod printf("avail mem = %lu (%luMB)\n", ptoa((psize_t)uvmexp.free), 840701cd583Smiod ptoa((psize_t)uvmexp.free) / 1024 / 1024); 841aed035abSart #if 0 842aed035abSart { 843aed035abSart extern u_long pmap_pages_stolen; 844aed035abSart 845aed035abSart printf("stolen memory for VM structures = %d\n", pmap_pages_stolen * PAGE_SIZE); 846aed035abSart } 847aed035abSart #endif 848df930be7Sderaadt 849df930be7Sderaadt /* 850df930be7Sderaadt * Set up buffers, so they can be used to read disk labels. 851df930be7Sderaadt */ 852df930be7Sderaadt bufinit(); 853df930be7Sderaadt 854df930be7Sderaadt /* 855df930be7Sderaadt * Configure the system. 856df930be7Sderaadt */ 85741033391Sderaadt if (boothowto & RB_CONFIG) { 85841033391Sderaadt #ifdef BOOT_CONFIG 85941033391Sderaadt user_config(); 86041033391Sderaadt #else 86141033391Sderaadt printf("kernel does not support -c; continuing..\n"); 86241033391Sderaadt #endif 86341033391Sderaadt } 86450ce9ee0Sniklas 86550ce9ee0Sniklas /* 866aed035abSart * Set up the HWPCB so that it's safe to configure secondary 867aed035abSart * CPUs. 86850ce9ee0Sniklas */ 869aed035abSart hwrpb_primary_init(); 870aed035abSart } 871aed035abSart 872aed035abSart /* 873aed035abSart * Retrieve the platform name from the DSR. 874aed035abSart */ 875aed035abSart const char * 876aed035abSart alpha_dsr_sysname() 877aed035abSart { 878aed035abSart struct dsrdb *dsr; 879aed035abSart const char *sysname; 880aed035abSart 881aed035abSart /* 882aed035abSart * DSR does not exist on early HWRPB versions. 883aed035abSart */ 884aed035abSart if (hwrpb->rpb_version < HWRPB_DSRDB_MINVERS) 885aed035abSart return (NULL); 886aed035abSart 887aed035abSart dsr = (struct dsrdb *)(((caddr_t)hwrpb) + hwrpb->rpb_dsrdb_off); 888aed035abSart sysname = (const char *)((caddr_t)dsr + (dsr->dsr_sysname_off + 889aed035abSart sizeof(u_int64_t))); 890aed035abSart return (sysname); 891aed035abSart } 892aed035abSart 893aed035abSart /* 894aed035abSart * Lookup the system specified system variation in the provided table, 895aed035abSart * returning the model string on match. 896aed035abSart */ 897aed035abSart const char * 898aed035abSart alpha_variation_name(variation, avtp) 899aed035abSart u_int64_t variation; 900aed035abSart const struct alpha_variation_table *avtp; 901aed035abSart { 902aed035abSart int i; 903aed035abSart 904aed035abSart for (i = 0; avtp[i].avt_model != NULL; i++) 905aed035abSart if (avtp[i].avt_variation == variation) 906aed035abSart return (avtp[i].avt_model); 907aed035abSart return (NULL); 908aed035abSart } 909aed035abSart 910aed035abSart /* 911aed035abSart * Generate a default platform name based for unknown system variations. 912aed035abSart */ 913aed035abSart const char * 914aed035abSart alpha_unknown_sysname() 915aed035abSart { 916aed035abSart static char s[128]; /* safe size */ 917aed035abSart 918d5eb2d9aSderaadt snprintf(s, sizeof s, "%s family, unknown model variation 0x%lx", 919e86d96d5Smiod platform.family, (unsigned long)hwrpb->rpb_variation & SV_ST_MASK); 920aed035abSart return ((const char *)s); 921df930be7Sderaadt } 922df930be7Sderaadt 92350ce9ee0Sniklas void 924df930be7Sderaadt identifycpu() 925df930be7Sderaadt { 926aed035abSart char *s; 927b3cee53eSmartin int slen; 928df930be7Sderaadt 929df930be7Sderaadt /* 930df930be7Sderaadt * print out CPU identification information. 931df930be7Sderaadt */ 932aed035abSart printf("%s", cpu_model); 933aed035abSart for(s = cpu_model; *s; ++s) 934aed035abSart if(strncasecmp(s, "MHz", 3) == 0) 935aed035abSart goto skipMHz; 936e86d96d5Smiod printf(", %luMHz", (unsigned long)hwrpb->rpb_cc_freq / 1000000); 937aed035abSart skipMHz: 938b3cee53eSmartin /* fill in hw_serial if a serial number is known */ 939b3cee53eSmartin slen = strlen(hwrpb->rpb_ssn) + 1; 940b3cee53eSmartin if (slen > 1) { 941b3cee53eSmartin hw_serial = malloc(slen, M_SYSCTL, M_NOWAIT); 942b3cee53eSmartin if (hw_serial) 943b3cee53eSmartin strlcpy(hw_serial, (char *)hwrpb->rpb_ssn, slen); 944b3cee53eSmartin } 945b3cee53eSmartin 946aed035abSart printf("\n"); 947e86d96d5Smiod printf("%lu byte page size, %d processor%s.\n", 948e86d96d5Smiod (unsigned long)hwrpb->rpb_page_size, ncpusfound, 949e86d96d5Smiod ncpusfound == 1 ? "" : "s"); 950df930be7Sderaadt #if 0 951b3cee53eSmartin /* this is not particularly useful! */ 952df930be7Sderaadt printf("variation: 0x%lx, revision 0x%lx\n", 953df930be7Sderaadt hwrpb->rpb_variation, *(long *)hwrpb->rpb_revision); 954df930be7Sderaadt #endif 955df930be7Sderaadt } 956df930be7Sderaadt 957df930be7Sderaadt int waittime = -1; 958df930be7Sderaadt struct pcb dumppcb; 959df930be7Sderaadt 960ff261808Suebayasi __dead void 961ff261808Suebayasi boot(int howto) 962df930be7Sderaadt { 963aed035abSart #if defined(MULTIPROCESSOR) 96421c23d01Smiod u_long wait_mask; 96521c23d01Smiod int i; 966aed035abSart #endif 967aed035abSart 968df930be7Sderaadt if (cold) { 969c9ad5066Stom if ((howto & RB_USERREQ) == 0) 970df930be7Sderaadt howto |= RB_HALT; 971df930be7Sderaadt goto haltsys; 972df930be7Sderaadt } 973df930be7Sderaadt 97450ce9ee0Sniklas if ((boothowto & RB_HALT) != 0) 97550ce9ee0Sniklas howto |= RB_HALT; 97650ce9ee0Sniklas 977df930be7Sderaadt boothowto = howto; 978df930be7Sderaadt if ((howto & RB_NOSYNC) == 0 && waittime < 0) { 979df930be7Sderaadt waittime = 0; 980df930be7Sderaadt vfs_shutdown(); 98115be954bSuebayasi 9822417125dSmiod if ((howto & RB_TIMEBAD) == 0) { 983df930be7Sderaadt resettodr(); 9842417125dSmiod } else { 9852417125dSmiod printf("WARNING: not updating battery clock\n"); 9862417125dSmiod } 987df930be7Sderaadt } 9887d9ca166Sderaadt if_downall(); 989df930be7Sderaadt 990c98e8b29Sderaadt uvm_shutdown(); 9919f43f03fSuebayasi splhigh(); 99280ce5a38Smpi cold = 1; 993df930be7Sderaadt 99421c23d01Smiod #if defined(MULTIPROCESSOR) 99521c23d01Smiod /* 99621c23d01Smiod * Halt all other CPUs. 99721c23d01Smiod */ 99821c23d01Smiod wait_mask = (1UL << hwrpb->rpb_primary_cpu_id); 99921c23d01Smiod alpha_broadcast_ipi(ALPHA_IPI_HALT); 100021c23d01Smiod 100121c23d01Smiod /* Ensure any CPUs paused by DDB resume execution so they can halt */ 100221c23d01Smiod cpus_paused = 0; 100321c23d01Smiod 100421c23d01Smiod for (i = 0; i < 10000; i++) { 100521c23d01Smiod alpha_mb(); 100621c23d01Smiod if (cpus_running == wait_mask) 100721c23d01Smiod break; 100821c23d01Smiod delay(1000); 100921c23d01Smiod } 101021c23d01Smiod alpha_mb(); 101121c23d01Smiod if (cpus_running != wait_mask) 101221c23d01Smiod printf("WARNING: Unable to halt secondary CPUs (0x%lx)\n", 101321c23d01Smiod cpus_running); 101421c23d01Smiod #endif 101521c23d01Smiod 1016b19c85f4Suebayasi if ((howto & RB_DUMP) != 0) 1017df930be7Sderaadt dumpsys(); 1018df930be7Sderaadt 101934fbf6deSderaadt haltsys: 102096f419e1Skettenis config_suspend_all(DVACT_POWERDOWN); 1021df930be7Sderaadt 1022df930be7Sderaadt #ifdef BOOTKEY 1023b33b2f20Suebayasi printf("hit any key to %s...\n", 1024b33b2f20Suebayasi (howto & RB_HALT) != 0 ? "halt" : "reboot"); 1025aed035abSart cnpollc(1); /* for proper keyboard command handling */ 1026df930be7Sderaadt cngetc(); 1027aed035abSart cnpollc(0); 1028df930be7Sderaadt printf("\n"); 1029df930be7Sderaadt #endif 1030df930be7Sderaadt 1031aed035abSart /* Finally, powerdown/halt/reboot the system. */ 1032b33b2f20Suebayasi if ((howto & RB_POWERDOWN) != 0 && 1033aed035abSart platform.powerdown != NULL) { 1034aed035abSart (*platform.powerdown)(); 1035aed035abSart printf("WARNING: powerdown failed!\n"); 1036aed035abSart } 1037b33b2f20Suebayasi printf("%s\n\n", 1038b33b2f20Suebayasi (howto & RB_HALT) != 0 ? "halted." : "rebooting..."); 1039b33b2f20Suebayasi prom_halt((howto & RB_HALT) != 0); 1040de5ed823Stom for (;;) 1041de5ed823Stom continue; 1042df930be7Sderaadt /* NOTREACHED */ 1043df930be7Sderaadt } 1044df930be7Sderaadt 1045df930be7Sderaadt /* 1046df930be7Sderaadt * These variables are needed by /sbin/savecore 1047df930be7Sderaadt */ 1048df930be7Sderaadt u_long dumpmag = 0x8fca0101; /* magic number */ 1049df930be7Sderaadt int dumpsize = 0; /* pages */ 1050df930be7Sderaadt long dumplo = 0; /* blocks */ 1051df930be7Sderaadt 1052df930be7Sderaadt /* 105350ce9ee0Sniklas * cpu_dumpsize: calculate size of machine-dependent kernel core dump headers. 105450ce9ee0Sniklas */ 105550ce9ee0Sniklas int 105650ce9ee0Sniklas cpu_dumpsize() 105750ce9ee0Sniklas { 105850ce9ee0Sniklas int size; 105950ce9ee0Sniklas 1060aed035abSart size = ALIGN(sizeof(kcore_seg_t)) + ALIGN(sizeof(cpu_kcore_hdr_t)) + 1061aed035abSart ALIGN(mem_cluster_cnt * sizeof(phys_ram_seg_t)); 106250ce9ee0Sniklas if (roundup(size, dbtob(1)) != dbtob(1)) 106350ce9ee0Sniklas return -1; 106450ce9ee0Sniklas 106550ce9ee0Sniklas return (1); 106650ce9ee0Sniklas } 106750ce9ee0Sniklas 106850ce9ee0Sniklas /* 1069aed035abSart * cpu_dump_mempagecnt: calculate size of RAM (in pages) to be dumped. 1070aed035abSart */ 1071aed035abSart u_long 1072aed035abSart cpu_dump_mempagecnt() 1073aed035abSart { 1074aed035abSart u_long i, n; 1075aed035abSart 1076aed035abSart n = 0; 1077aed035abSart for (i = 0; i < mem_cluster_cnt; i++) 1078aed035abSart n += atop(mem_clusters[i].size); 1079aed035abSart return (n); 1080aed035abSart } 1081aed035abSart 1082aed035abSart /* 108350ce9ee0Sniklas * cpu_dump: dump machine-dependent kernel core dump headers. 108450ce9ee0Sniklas */ 108550ce9ee0Sniklas int 108650ce9ee0Sniklas cpu_dump() 108750ce9ee0Sniklas { 10881abdbfdeSderaadt int (*dump)(dev_t, daddr_t, caddr_t, size_t); 1089aed035abSart char buf[dbtob(1)]; 109050ce9ee0Sniklas kcore_seg_t *segp; 109150ce9ee0Sniklas cpu_kcore_hdr_t *cpuhdrp; 1092aed035abSart phys_ram_seg_t *memsegp; 1093aed035abSart int i; 109450ce9ee0Sniklas 109550ce9ee0Sniklas dump = bdevsw[major(dumpdev)].d_dump; 109650ce9ee0Sniklas 1097aed035abSart bzero(buf, sizeof buf); 109850ce9ee0Sniklas segp = (kcore_seg_t *)buf; 1099aed035abSart cpuhdrp = (cpu_kcore_hdr_t *)&buf[ALIGN(sizeof(*segp))]; 1100aed035abSart memsegp = (phys_ram_seg_t *)&buf[ALIGN(sizeof(*segp)) + 1101aed035abSart ALIGN(sizeof(*cpuhdrp))]; 110250ce9ee0Sniklas 110350ce9ee0Sniklas /* 110450ce9ee0Sniklas * Generate a segment header. 110550ce9ee0Sniklas */ 110650ce9ee0Sniklas CORE_SETMAGIC(*segp, KCORE_MAGIC, MID_MACHINE, CORE_CPU); 110750ce9ee0Sniklas segp->c_size = dbtob(1) - ALIGN(sizeof(*segp)); 110850ce9ee0Sniklas 110950ce9ee0Sniklas /* 1110aed035abSart * Add the machine-dependent header info. 111150ce9ee0Sniklas */ 1112aed035abSart cpuhdrp->lev1map_pa = ALPHA_K0SEG_TO_PHYS((vaddr_t)kernel_lev1map); 111350ce9ee0Sniklas cpuhdrp->page_size = PAGE_SIZE; 1114aed035abSart cpuhdrp->nmemsegs = mem_cluster_cnt; 1115aed035abSart 1116aed035abSart /* 1117aed035abSart * Fill in the memory segment descriptors. 1118aed035abSart */ 1119aed035abSart for (i = 0; i < mem_cluster_cnt; i++) { 1120aed035abSart memsegp[i].start = mem_clusters[i].start; 1121aed035abSart memsegp[i].size = mem_clusters[i].size & ~PAGE_MASK; 1122aed035abSart } 112350ce9ee0Sniklas 112450ce9ee0Sniklas return (dump(dumpdev, dumplo, (caddr_t)buf, dbtob(1))); 112550ce9ee0Sniklas } 112650ce9ee0Sniklas 112750ce9ee0Sniklas /* 1128aed035abSart * This is called by main to set dumplo and dumpsize. 1129194dd68bSbrad * Dumps always skip the first PAGE_SIZE of disk space 1130df930be7Sderaadt * in case there might be a disk label stored there. 1131df930be7Sderaadt * If there is extra space, put dump at the end to 1132df930be7Sderaadt * reduce the chance that swapping trashes it. 1133df930be7Sderaadt */ 1134df930be7Sderaadt void 1135e17d3b39Sderaadt dumpconf(void) 1136df930be7Sderaadt { 113750ce9ee0Sniklas int nblks, dumpblks; /* size of dump area */ 1138df930be7Sderaadt 1139e17d3b39Sderaadt if (dumpdev == NODEV || 1140e17d3b39Sderaadt (nblks = (bdevsw[major(dumpdev)].d_psize)(dumpdev)) == 0) 1141e17d3b39Sderaadt return; 1142df930be7Sderaadt if (nblks <= ctod(1)) 1143e17d3b39Sderaadt return; 114450ce9ee0Sniklas 114550ce9ee0Sniklas dumpblks = cpu_dumpsize(); 114650ce9ee0Sniklas if (dumpblks < 0) 1147e17d3b39Sderaadt return; 1148aed035abSart dumpblks += ctod(cpu_dump_mempagecnt()); 114950ce9ee0Sniklas 115050ce9ee0Sniklas /* If dump won't fit (incl. room for possible label), punt. */ 115150ce9ee0Sniklas if (dumpblks > (nblks - ctod(1))) 1152e17d3b39Sderaadt return; 115350ce9ee0Sniklas 115450ce9ee0Sniklas /* Put dump at end of partition */ 115550ce9ee0Sniklas dumplo = nblks - dumpblks; 115650ce9ee0Sniklas 115750ce9ee0Sniklas /* dumpsize is in page units, and doesn't include headers. */ 1158aed035abSart dumpsize = cpu_dump_mempagecnt(); 1159df930be7Sderaadt } 1160df930be7Sderaadt 1161df930be7Sderaadt /* 116250ce9ee0Sniklas * Dump the kernel's image to the swap partition. 1163df930be7Sderaadt */ 1164194dd68bSbrad #define BYTES_PER_DUMP PAGE_SIZE 116550ce9ee0Sniklas 1166df930be7Sderaadt void 1167df930be7Sderaadt dumpsys() 1168df930be7Sderaadt { 1169aed035abSart u_long totalbytesleft, bytes, i, n, memcl; 1170aed035abSart u_long maddr; 1171aed035abSart int psize; 11721abdbfdeSderaadt daddr_t blkno; 11731abdbfdeSderaadt int (*dump)(dev_t, daddr_t, caddr_t, size_t); 117450ce9ee0Sniklas int error; 1175067cbd75Sderaadt extern int msgbufmapped; 1176df930be7Sderaadt 117750ce9ee0Sniklas /* Save registers. */ 117850ce9ee0Sniklas savectx(&dumppcb); 117950ce9ee0Sniklas 118050ce9ee0Sniklas msgbufmapped = 0; /* don't record dump msgs in msgbuf */ 1181df930be7Sderaadt if (dumpdev == NODEV) 1182df930be7Sderaadt return; 118350ce9ee0Sniklas 118450ce9ee0Sniklas /* 118550ce9ee0Sniklas * For dumps during autoconfiguration, 118650ce9ee0Sniklas * if dump device has already configured... 118750ce9ee0Sniklas */ 1188df930be7Sderaadt if (dumpsize == 0) 118950ce9ee0Sniklas dumpconf(); 119050ce9ee0Sniklas if (dumplo <= 0) { 1191aed035abSart printf("\ndump to dev %u,%u not possible\n", major(dumpdev), 1192aed035abSart minor(dumpdev)); 1193df930be7Sderaadt return; 1194df930be7Sderaadt } 1195aed035abSart printf("\ndumping to dev %u,%u offset %ld\n", major(dumpdev), 1196aed035abSart minor(dumpdev), dumplo); 1197df930be7Sderaadt 119850ce9ee0Sniklas psize = (*bdevsw[major(dumpdev)].d_psize)(dumpdev); 1199df930be7Sderaadt printf("dump "); 120050ce9ee0Sniklas if (psize == -1) { 120150ce9ee0Sniklas printf("area unavailable\n"); 120250ce9ee0Sniklas return; 120350ce9ee0Sniklas } 120450ce9ee0Sniklas 120550ce9ee0Sniklas /* XXX should purge all outstanding keystrokes. */ 120650ce9ee0Sniklas 120750ce9ee0Sniklas if ((error = cpu_dump()) != 0) 120850ce9ee0Sniklas goto err; 120950ce9ee0Sniklas 1210aed035abSart totalbytesleft = ptoa(cpu_dump_mempagecnt()); 121150ce9ee0Sniklas blkno = dumplo + cpu_dumpsize(); 121250ce9ee0Sniklas dump = bdevsw[major(dumpdev)].d_dump; 121350ce9ee0Sniklas error = 0; 1214aed035abSart 1215aed035abSart for (memcl = 0; memcl < mem_cluster_cnt; memcl++) { 1216aed035abSart maddr = mem_clusters[memcl].start; 1217aed035abSart bytes = mem_clusters[memcl].size & ~PAGE_MASK; 1218aed035abSart 1219aed035abSart for (i = 0; i < bytes; i += n, totalbytesleft -= n) { 122050ce9ee0Sniklas 122150ce9ee0Sniklas /* Print out how many MBs we to go. */ 1222aed035abSart if ((totalbytesleft % (1024*1024)) == 0) 1223aed035abSart printf("%ld ", totalbytesleft / (1024 * 1024)); 122450ce9ee0Sniklas 122550ce9ee0Sniklas /* Limit size for next transfer. */ 1226aed035abSart n = bytes - i; 122750ce9ee0Sniklas if (n > BYTES_PER_DUMP) 122850ce9ee0Sniklas n = BYTES_PER_DUMP; 122950ce9ee0Sniklas 123050ce9ee0Sniklas error = (*dump)(dumpdev, blkno, 123150ce9ee0Sniklas (caddr_t)ALPHA_PHYS_TO_K0SEG(maddr), n); 123250ce9ee0Sniklas if (error) 1233aed035abSart goto err; 123450ce9ee0Sniklas maddr += n; 123550ce9ee0Sniklas blkno += btodb(n); /* XXX? */ 123650ce9ee0Sniklas 123750ce9ee0Sniklas /* XXX should look for keystrokes, to cancel. */ 123850ce9ee0Sniklas } 1239aed035abSart } 124050ce9ee0Sniklas 124150ce9ee0Sniklas err: 124250ce9ee0Sniklas switch (error) { 1243a37778bcSderaadt #ifdef DEBUG 1244df930be7Sderaadt case ENXIO: 1245df930be7Sderaadt printf("device bad\n"); 1246df930be7Sderaadt break; 1247df930be7Sderaadt 1248df930be7Sderaadt case EFAULT: 1249df930be7Sderaadt printf("device not ready\n"); 1250df930be7Sderaadt break; 1251df930be7Sderaadt 1252df930be7Sderaadt case EINVAL: 1253df930be7Sderaadt printf("area improper\n"); 1254df930be7Sderaadt break; 1255df930be7Sderaadt 1256df930be7Sderaadt case EIO: 1257df930be7Sderaadt printf("i/o error\n"); 1258df930be7Sderaadt break; 1259df930be7Sderaadt 1260df930be7Sderaadt case EINTR: 1261df930be7Sderaadt printf("aborted from console\n"); 1262df930be7Sderaadt break; 1263a37778bcSderaadt #endif /* DEBUG */ 126450ce9ee0Sniklas case 0: 1265df930be7Sderaadt printf("succeeded\n"); 1266df930be7Sderaadt break; 126750ce9ee0Sniklas 126850ce9ee0Sniklas default: 126950ce9ee0Sniklas printf("error %d\n", error); 127050ce9ee0Sniklas break; 1271df930be7Sderaadt } 1272df930be7Sderaadt printf("\n\n"); 1273df930be7Sderaadt delay(1000); 1274df930be7Sderaadt } 1275df930be7Sderaadt 1276df930be7Sderaadt void 1277df930be7Sderaadt frametoreg(framep, regp) 1278df930be7Sderaadt struct trapframe *framep; 1279df930be7Sderaadt struct reg *regp; 1280df930be7Sderaadt { 1281df930be7Sderaadt 1282df930be7Sderaadt regp->r_regs[R_V0] = framep->tf_regs[FRAME_V0]; 1283df930be7Sderaadt regp->r_regs[R_T0] = framep->tf_regs[FRAME_T0]; 1284df930be7Sderaadt regp->r_regs[R_T1] = framep->tf_regs[FRAME_T1]; 1285df930be7Sderaadt regp->r_regs[R_T2] = framep->tf_regs[FRAME_T2]; 1286df930be7Sderaadt regp->r_regs[R_T3] = framep->tf_regs[FRAME_T3]; 1287df930be7Sderaadt regp->r_regs[R_T4] = framep->tf_regs[FRAME_T4]; 1288df930be7Sderaadt regp->r_regs[R_T5] = framep->tf_regs[FRAME_T5]; 1289df930be7Sderaadt regp->r_regs[R_T6] = framep->tf_regs[FRAME_T6]; 1290df930be7Sderaadt regp->r_regs[R_T7] = framep->tf_regs[FRAME_T7]; 1291df930be7Sderaadt regp->r_regs[R_S0] = framep->tf_regs[FRAME_S0]; 1292df930be7Sderaadt regp->r_regs[R_S1] = framep->tf_regs[FRAME_S1]; 1293df930be7Sderaadt regp->r_regs[R_S2] = framep->tf_regs[FRAME_S2]; 1294df930be7Sderaadt regp->r_regs[R_S3] = framep->tf_regs[FRAME_S3]; 1295df930be7Sderaadt regp->r_regs[R_S4] = framep->tf_regs[FRAME_S4]; 1296df930be7Sderaadt regp->r_regs[R_S5] = framep->tf_regs[FRAME_S5]; 1297df930be7Sderaadt regp->r_regs[R_S6] = framep->tf_regs[FRAME_S6]; 129850ce9ee0Sniklas regp->r_regs[R_A0] = framep->tf_regs[FRAME_A0]; 129950ce9ee0Sniklas regp->r_regs[R_A1] = framep->tf_regs[FRAME_A1]; 130050ce9ee0Sniklas regp->r_regs[R_A2] = framep->tf_regs[FRAME_A2]; 1301df930be7Sderaadt regp->r_regs[R_A3] = framep->tf_regs[FRAME_A3]; 1302df930be7Sderaadt regp->r_regs[R_A4] = framep->tf_regs[FRAME_A4]; 1303df930be7Sderaadt regp->r_regs[R_A5] = framep->tf_regs[FRAME_A5]; 1304df930be7Sderaadt regp->r_regs[R_T8] = framep->tf_regs[FRAME_T8]; 1305df930be7Sderaadt regp->r_regs[R_T9] = framep->tf_regs[FRAME_T9]; 1306df930be7Sderaadt regp->r_regs[R_T10] = framep->tf_regs[FRAME_T10]; 1307df930be7Sderaadt regp->r_regs[R_T11] = framep->tf_regs[FRAME_T11]; 1308df930be7Sderaadt regp->r_regs[R_RA] = framep->tf_regs[FRAME_RA]; 1309df930be7Sderaadt regp->r_regs[R_T12] = framep->tf_regs[FRAME_T12]; 1310df930be7Sderaadt regp->r_regs[R_AT] = framep->tf_regs[FRAME_AT]; 131150ce9ee0Sniklas regp->r_regs[R_GP] = framep->tf_regs[FRAME_GP]; 131250ce9ee0Sniklas /* regp->r_regs[R_SP] = framep->tf_regs[FRAME_SP]; XXX */ 1313df930be7Sderaadt regp->r_regs[R_ZERO] = 0; 1314df930be7Sderaadt } 1315df930be7Sderaadt 1316df930be7Sderaadt void 1317df930be7Sderaadt regtoframe(regp, framep) 1318df930be7Sderaadt struct reg *regp; 1319df930be7Sderaadt struct trapframe *framep; 1320df930be7Sderaadt { 1321df930be7Sderaadt 1322df930be7Sderaadt framep->tf_regs[FRAME_V0] = regp->r_regs[R_V0]; 1323df930be7Sderaadt framep->tf_regs[FRAME_T0] = regp->r_regs[R_T0]; 1324df930be7Sderaadt framep->tf_regs[FRAME_T1] = regp->r_regs[R_T1]; 1325df930be7Sderaadt framep->tf_regs[FRAME_T2] = regp->r_regs[R_T2]; 1326df930be7Sderaadt framep->tf_regs[FRAME_T3] = regp->r_regs[R_T3]; 1327df930be7Sderaadt framep->tf_regs[FRAME_T4] = regp->r_regs[R_T4]; 1328df930be7Sderaadt framep->tf_regs[FRAME_T5] = regp->r_regs[R_T5]; 1329df930be7Sderaadt framep->tf_regs[FRAME_T6] = regp->r_regs[R_T6]; 1330df930be7Sderaadt framep->tf_regs[FRAME_T7] = regp->r_regs[R_T7]; 1331df930be7Sderaadt framep->tf_regs[FRAME_S0] = regp->r_regs[R_S0]; 1332df930be7Sderaadt framep->tf_regs[FRAME_S1] = regp->r_regs[R_S1]; 1333df930be7Sderaadt framep->tf_regs[FRAME_S2] = regp->r_regs[R_S2]; 1334df930be7Sderaadt framep->tf_regs[FRAME_S3] = regp->r_regs[R_S3]; 1335df930be7Sderaadt framep->tf_regs[FRAME_S4] = regp->r_regs[R_S4]; 1336df930be7Sderaadt framep->tf_regs[FRAME_S5] = regp->r_regs[R_S5]; 1337df930be7Sderaadt framep->tf_regs[FRAME_S6] = regp->r_regs[R_S6]; 133850ce9ee0Sniklas framep->tf_regs[FRAME_A0] = regp->r_regs[R_A0]; 133950ce9ee0Sniklas framep->tf_regs[FRAME_A1] = regp->r_regs[R_A1]; 134050ce9ee0Sniklas framep->tf_regs[FRAME_A2] = regp->r_regs[R_A2]; 1341df930be7Sderaadt framep->tf_regs[FRAME_A3] = regp->r_regs[R_A3]; 1342df930be7Sderaadt framep->tf_regs[FRAME_A4] = regp->r_regs[R_A4]; 1343df930be7Sderaadt framep->tf_regs[FRAME_A5] = regp->r_regs[R_A5]; 1344df930be7Sderaadt framep->tf_regs[FRAME_T8] = regp->r_regs[R_T8]; 1345df930be7Sderaadt framep->tf_regs[FRAME_T9] = regp->r_regs[R_T9]; 1346df930be7Sderaadt framep->tf_regs[FRAME_T10] = regp->r_regs[R_T10]; 1347df930be7Sderaadt framep->tf_regs[FRAME_T11] = regp->r_regs[R_T11]; 1348df930be7Sderaadt framep->tf_regs[FRAME_RA] = regp->r_regs[R_RA]; 1349df930be7Sderaadt framep->tf_regs[FRAME_T12] = regp->r_regs[R_T12]; 1350df930be7Sderaadt framep->tf_regs[FRAME_AT] = regp->r_regs[R_AT]; 135150ce9ee0Sniklas framep->tf_regs[FRAME_GP] = regp->r_regs[R_GP]; 135250ce9ee0Sniklas /* framep->tf_regs[FRAME_SP] = regp->r_regs[R_SP]; XXX */ 1353df930be7Sderaadt /* ??? = regp->r_regs[R_ZERO]; */ 1354df930be7Sderaadt } 1355df930be7Sderaadt 1356df930be7Sderaadt void 1357df930be7Sderaadt printregs(regp) 1358df930be7Sderaadt struct reg *regp; 1359df930be7Sderaadt { 1360df930be7Sderaadt int i; 1361df930be7Sderaadt 1362df930be7Sderaadt for (i = 0; i < 32; i++) 1363df930be7Sderaadt printf("R%d:\t0x%016lx%s", i, regp->r_regs[i], 1364df930be7Sderaadt i & 1 ? "\n" : "\t"); 1365df930be7Sderaadt } 1366df930be7Sderaadt 1367df930be7Sderaadt void 1368df930be7Sderaadt regdump(framep) 1369df930be7Sderaadt struct trapframe *framep; 1370df930be7Sderaadt { 1371df930be7Sderaadt struct reg reg; 1372df930be7Sderaadt 1373df930be7Sderaadt frametoreg(framep, ®); 137450ce9ee0Sniklas reg.r_regs[R_SP] = alpha_pal_rdusp(); 137550ce9ee0Sniklas 1376df930be7Sderaadt printf("REGISTERS:\n"); 1377df930be7Sderaadt printregs(®); 1378df930be7Sderaadt } 1379df930be7Sderaadt 1380df930be7Sderaadt #ifdef DEBUG 1381df930be7Sderaadt int sigdebug = 0; 138272830333Sokan pid_t sigpid = 0; 1383df930be7Sderaadt #define SDB_FOLLOW 0x01 1384df930be7Sderaadt #define SDB_KSTACK 0x02 1385df930be7Sderaadt #endif 1386df930be7Sderaadt 1387df930be7Sderaadt /* 1388df930be7Sderaadt * Send an interrupt to process. 1389df930be7Sderaadt */ 1390df930be7Sderaadt void 1391e99873aaSderaadt sendsig(sig_t catcher, int sig, int mask, u_long code, int type, 1392e99873aaSderaadt union sigval val) 1393df930be7Sderaadt { 1394df930be7Sderaadt struct proc *p = curproc; 1395e99873aaSderaadt struct sigcontext ksc, *scp; 1396e7e08221Smiod struct fpreg *fpregs = (struct fpreg *)&ksc.sc_fpregs; 1397df930be7Sderaadt struct trapframe *frame; 1398533be81aSguenther struct sigacts *psp = p->p_p->ps_sigacts; 13991eaa59e7Sguenther unsigned long oldsp; 14001eaa59e7Sguenther int fsize, rndfsize, kscsize; 14012bf9c155Sderaadt siginfo_t *sip, ksi; 1402df930be7Sderaadt 14031eaa59e7Sguenther oldsp = alpha_pal_rdusp(); 1404df930be7Sderaadt frame = p->p_md.md_tf; 1405df930be7Sderaadt fsize = sizeof ksc; 1406df930be7Sderaadt rndfsize = ((fsize + 15) / 16) * 16; 14072bf9c155Sderaadt kscsize = rndfsize; 14082bf9c155Sderaadt if (psp->ps_siginfo & sigmask(sig)) { 14092bf9c155Sderaadt fsize += sizeof ksi; 14102bf9c155Sderaadt rndfsize = ((fsize + 15) / 16) * 16; 14112bf9c155Sderaadt } 141274652a67Sniklas 1413df930be7Sderaadt /* 14146e870393Smiod * Allocate space for the signal handler context. 1415df930be7Sderaadt */ 14161eaa59e7Sguenther if ((p->p_sigstk.ss_flags & SS_DISABLE) == 0 && 14171eaa59e7Sguenther !sigonstack(oldsp) && (psp->ps_sigonstack & sigmask(sig))) 14182725daddSguenther scp = (struct sigcontext *)(p->p_sigstk.ss_sp + 14192725daddSguenther p->p_sigstk.ss_size - rndfsize); 14201eaa59e7Sguenther else 14211eaa59e7Sguenther scp = (struct sigcontext *)(oldsp - rndfsize); 1422df930be7Sderaadt 1423df930be7Sderaadt /* 1424df930be7Sderaadt * Build the signal context to be used by sigreturn. 1425df930be7Sderaadt */ 14261eaa59e7Sguenther bzero(&ksc, sizeof(ksc)); 1427df930be7Sderaadt ksc.sc_mask = mask; 142850ce9ee0Sniklas ksc.sc_pc = frame->tf_regs[FRAME_PC]; 142950ce9ee0Sniklas ksc.sc_ps = frame->tf_regs[FRAME_PS]; 1430df930be7Sderaadt 1431df930be7Sderaadt /* copy the registers. */ 1432df930be7Sderaadt frametoreg(frame, (struct reg *)ksc.sc_regs); 14331eaa59e7Sguenther ksc.sc_regs[R_SP] = oldsp; 1434df930be7Sderaadt 1435df930be7Sderaadt /* save the floating-point state, if necessary, then copy it. */ 1436433075b6Spvalchev if (p->p_addr->u_pcb.pcb_fpcpu != NULL) 1437433075b6Spvalchev fpusave_proc(p, 1); 1438df930be7Sderaadt ksc.sc_ownedfp = p->p_md.md_flags & MDP_FPUSED; 1439e7e08221Smiod memcpy(/*ksc.sc_*/fpregs, &p->p_addr->u_pcb.pcb_fp, 1440df930be7Sderaadt sizeof(struct fpreg)); 1441433075b6Spvalchev #ifndef NO_IEEE 1442433075b6Spvalchev ksc.sc_fp_control = alpha_read_fp_c(p); 1443433075b6Spvalchev #else 1444433075b6Spvalchev ksc.sc_fp_control = 0; 1445433075b6Spvalchev #endif 1446433075b6Spvalchev memset(ksc.sc_reserved, 0, sizeof ksc.sc_reserved); /* XXX */ 1447433075b6Spvalchev memset(ksc.sc_xxx, 0, sizeof ksc.sc_xxx); /* XXX */ 1448df930be7Sderaadt 14492bf9c155Sderaadt if (psp->ps_siginfo & sigmask(sig)) { 14502bf9c155Sderaadt initsiginfo(&ksi, sig, code, type, val); 14512bf9c155Sderaadt sip = (void *)scp + kscsize; 1452679ebc41Smiod if (copyout((caddr_t)&ksi, (caddr_t)sip, fsize - kscsize) != 0) 1453679ebc41Smiod goto trash; 1454aa540fb8Sart } else 1455aa540fb8Sart sip = NULL; 14562bf9c155Sderaadt 14577730d1d9Sderaadt ksc.sc_cookie = (long)scp ^ p->p_p->ps_sigcookie; 1458679ebc41Smiod if (copyout((caddr_t)&ksc, (caddr_t)scp, kscsize) != 0) { 1459679ebc41Smiod trash: 1460679ebc41Smiod /* 1461679ebc41Smiod * Process has trashed its stack; give it an illegal 1462679ebc41Smiod * instruction to halt it in its tracks. 1463679ebc41Smiod */ 146486fd84b3Smiod sigexit(p, SIGILL); 146586fd84b3Smiod /* NOTREACHED */ 1466679ebc41Smiod } 1467df930be7Sderaadt 1468df930be7Sderaadt /* 1469df930be7Sderaadt * Set up the registers to return to sigcode. 1470df930be7Sderaadt */ 14718f76f5adSguenther frame->tf_regs[FRAME_PC] = p->p_p->ps_sigcode; 147250ce9ee0Sniklas frame->tf_regs[FRAME_A0] = sig; 1473aa540fb8Sart frame->tf_regs[FRAME_A1] = (u_int64_t)sip; 147450ce9ee0Sniklas frame->tf_regs[FRAME_A2] = (u_int64_t)scp; 1475df930be7Sderaadt frame->tf_regs[FRAME_T12] = (u_int64_t)catcher; /* t12 is pv */ 147650ce9ee0Sniklas alpha_pal_wrusp((unsigned long)scp); 1477df930be7Sderaadt } 1478df930be7Sderaadt 1479df930be7Sderaadt /* 1480df930be7Sderaadt * System call to cleanup state after a signal 1481df930be7Sderaadt * has been taken. Reset signal mask and 1482df930be7Sderaadt * stack state from context left by sendsig (above). 1483df930be7Sderaadt * Return to previous pc and psl as specified by 1484df930be7Sderaadt * context left by sendsig. Check carefully to 1485df930be7Sderaadt * make sure that the user has not modified the 1486125cd19fSderaadt * psl to gain improper privileges or to cause 1487df930be7Sderaadt * a machine fault. 1488df930be7Sderaadt */ 1489df930be7Sderaadt /* ARGSUSED */ 1490df930be7Sderaadt int 1491e99873aaSderaadt sys_sigreturn(struct proc *p, void *v, register_t *retval) 1492df930be7Sderaadt { 1493df930be7Sderaadt struct sys_sigreturn_args /* { 1494df930be7Sderaadt syscallarg(struct sigcontext *) sigcntxp; 1495df930be7Sderaadt } */ *uap = v; 1496e99873aaSderaadt struct sigcontext ksc, *scp = SCARG(uap, sigcntxp); 1497e7e08221Smiod struct fpreg *fpregs = (struct fpreg *)&ksc.sc_fpregs; 1498aa540fb8Sart int error; 1499df930be7Sderaadt 15007730d1d9Sderaadt if (PROC_PC(p) != p->p_p->ps_sigcoderet) { 15017730d1d9Sderaadt sigexit(p, SIGILL); 15027730d1d9Sderaadt return (EPERM); 15037730d1d9Sderaadt } 15047730d1d9Sderaadt 15057730d1d9Sderaadt if ((error = copyin(scp, &ksc, sizeof(ksc))) != 0) 1506aa540fb8Sart return (error); 1507df930be7Sderaadt 15087730d1d9Sderaadt if (ksc.sc_cookie != ((long)scp ^ p->p_p->ps_sigcookie)) { 15097730d1d9Sderaadt sigexit(p, SIGILL); 15107730d1d9Sderaadt return (EFAULT); 15117730d1d9Sderaadt } 15127730d1d9Sderaadt 15134a064f11Sderaadt /* Prevent reuse of the sigcontext cookie */ 15144a064f11Sderaadt ksc.sc_cookie = 0; 15154a064f11Sderaadt (void)copyout(&ksc.sc_cookie, (caddr_t)scp + 1516e99873aaSderaadt offsetof(struct sigcontext, sc_cookie), sizeof (ksc.sc_cookie)); 15174a064f11Sderaadt 1518df930be7Sderaadt /* 1519df930be7Sderaadt * Restore the user-supplied information 1520df930be7Sderaadt */ 1521df930be7Sderaadt p->p_sigmask = ksc.sc_mask &~ sigcantmask; 1522df930be7Sderaadt 152350ce9ee0Sniklas p->p_md.md_tf->tf_regs[FRAME_PC] = ksc.sc_pc; 152450ce9ee0Sniklas p->p_md.md_tf->tf_regs[FRAME_PS] = 152550ce9ee0Sniklas (ksc.sc_ps | ALPHA_PSL_USERSET) & ~ALPHA_PSL_USERCLR; 1526df930be7Sderaadt 1527df930be7Sderaadt regtoframe((struct reg *)ksc.sc_regs, p->p_md.md_tf); 152850ce9ee0Sniklas alpha_pal_wrusp(ksc.sc_regs[R_SP]); 1529df930be7Sderaadt 1530df930be7Sderaadt /* XXX ksc.sc_ownedfp ? */ 1531433075b6Spvalchev if (p->p_addr->u_pcb.pcb_fpcpu != NULL) 1532433075b6Spvalchev fpusave_proc(p, 0); 1533e7e08221Smiod memcpy(&p->p_addr->u_pcb.pcb_fp, /*ksc.sc_*/fpregs, 1534df930be7Sderaadt sizeof(struct fpreg)); 1535433075b6Spvalchev #ifndef NO_IEEE 1536433075b6Spvalchev p->p_addr->u_pcb.pcb_fp.fpr_cr = ksc.sc_fpcr; 1537433075b6Spvalchev p->p_md.md_flags = ksc.sc_fp_control & MDP_FP_C; 1538433075b6Spvalchev #endif 1539df930be7Sderaadt return (EJUSTRETURN); 1540df930be7Sderaadt } 1541df930be7Sderaadt 1542df930be7Sderaadt /* 1543df930be7Sderaadt * machine dependent system variables. 1544df930be7Sderaadt */ 154550ce9ee0Sniklas int 154669e3e61aSfcambus cpu_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp, 154769e3e61aSfcambus size_t newlen, struct proc *p) 1548df930be7Sderaadt { 1549df930be7Sderaadt dev_t consdev; 1550a072164aSmiod #if NIOASIC > 0 1551a072164aSmiod int oldval, ret; 1552a072164aSmiod #endif 1553df930be7Sderaadt 155445e5a1a0Sart if (name[0] != CPU_CHIPSET && namelen != 1) 1555df930be7Sderaadt return (ENOTDIR); /* overloaded */ 1556df930be7Sderaadt 1557df930be7Sderaadt switch (name[0]) { 1558df930be7Sderaadt case CPU_CONSDEV: 1559df930be7Sderaadt if (cn_tab != NULL) 1560df930be7Sderaadt consdev = cn_tab->cn_dev; 1561df930be7Sderaadt else 1562df930be7Sderaadt consdev = NODEV; 1563df930be7Sderaadt return (sysctl_rdstruct(oldp, oldlenp, newp, &consdev, 1564df930be7Sderaadt sizeof consdev)); 1565417eba8cSderaadt 1566a37778bcSderaadt #ifndef SMALL_KERNEL 156750ce9ee0Sniklas case CPU_UNALIGNED_PRINT: 156850ce9ee0Sniklas return (sysctl_int(oldp, oldlenp, newp, newlen, 156950ce9ee0Sniklas &alpha_unaligned_print)); 157050ce9ee0Sniklas 157150ce9ee0Sniklas case CPU_UNALIGNED_FIX: 157250ce9ee0Sniklas return (sysctl_int(oldp, oldlenp, newp, newlen, 157350ce9ee0Sniklas &alpha_unaligned_fix)); 157450ce9ee0Sniklas 157550ce9ee0Sniklas case CPU_UNALIGNED_SIGBUS: 157650ce9ee0Sniklas return (sysctl_int(oldp, oldlenp, newp, newlen, 157750ce9ee0Sniklas &alpha_unaligned_sigbus)); 157850ce9ee0Sniklas 15793a630e3fSniklas case CPU_BOOTED_KERNEL: 1580aed035abSart return (sysctl_rdstring(oldp, oldlenp, newp, 1581aed035abSart bootinfo.booted_kernel)); 15823a630e3fSniklas 158345e5a1a0Sart case CPU_CHIPSET: 158445e5a1a0Sart return (alpha_sysctl_chipset(name + 1, namelen - 1, oldp, 158545e5a1a0Sart oldlenp)); 1586a37778bcSderaadt #endif /* SMALL_KERNEL */ 1587433075b6Spvalchev 1588433075b6Spvalchev #ifndef NO_IEEE 1589433075b6Spvalchev case CPU_FP_SYNC_COMPLETE: 1590433075b6Spvalchev return (sysctl_int(oldp, oldlenp, newp, newlen, 1591433075b6Spvalchev &alpha_fp_sync_complete)); 1592433075b6Spvalchev #endif 159327626149Smatthieu case CPU_ALLOWAPERTURE: 159427626149Smatthieu #ifdef APERTURE 159527626149Smatthieu if (securelevel > 0) 15961546ceefSderaadt return (sysctl_int_lower(oldp, oldlenp, newp, newlen, 15971546ceefSderaadt &allowaperture)); 159827626149Smatthieu else 159927626149Smatthieu return (sysctl_int(oldp, oldlenp, newp, newlen, 160027626149Smatthieu &allowaperture)); 160127626149Smatthieu #else 160227626149Smatthieu return (sysctl_rdint(oldp, oldlenp, newp, 0)); 160327626149Smatthieu #endif 1604a072164aSmiod #if NIOASIC > 0 1605a072164aSmiod case CPU_LED_BLINK: 1606a072164aSmiod oldval = alpha_led_blink; 1607a072164aSmiod ret = sysctl_int(oldp, oldlenp, newp, newlen, &alpha_led_blink); 1608a072164aSmiod if (oldval != alpha_led_blink) 1609a072164aSmiod ioasic_led_blink(NULL); 1610a072164aSmiod return (ret); 1611a072164aSmiod #endif 1612df930be7Sderaadt default: 1613df930be7Sderaadt return (EOPNOTSUPP); 1614df930be7Sderaadt } 1615df930be7Sderaadt /* NOTREACHED */ 1616df930be7Sderaadt } 1617df930be7Sderaadt 1618df930be7Sderaadt /* 1619df930be7Sderaadt * Set registers on exec. 1620df930be7Sderaadt */ 1621df930be7Sderaadt void 1622df930be7Sderaadt setregs(p, pack, stack, retval) 1623df930be7Sderaadt register struct proc *p; 1624df930be7Sderaadt struct exec_package *pack; 1625df930be7Sderaadt u_long stack; 1626df930be7Sderaadt register_t *retval; 1627df930be7Sderaadt { 1628df930be7Sderaadt struct trapframe *tfp = p->p_md.md_tf; 16293a630e3fSniklas #ifdef DEBUG 16303a630e3fSniklas int i; 16313a630e3fSniklas #endif 1632df930be7Sderaadt 1633df930be7Sderaadt #ifdef DEBUG 163450ce9ee0Sniklas /* 163550ce9ee0Sniklas * Crash and dump, if the user requested it. 163650ce9ee0Sniklas */ 163750ce9ee0Sniklas if (boothowto & RB_DUMP) 163850ce9ee0Sniklas panic("crash requested by boot flags"); 163950ce9ee0Sniklas #endif 164050ce9ee0Sniklas 164150ce9ee0Sniklas #ifdef DEBUG 164250ce9ee0Sniklas for (i = 0; i < FRAME_SIZE; i++) 1643df930be7Sderaadt tfp->tf_regs[i] = 0xbabefacedeadbeef; 16446334622bSguenther tfp->tf_regs[FRAME_A1] = 0; 1645df930be7Sderaadt #else 164650ce9ee0Sniklas bzero(tfp->tf_regs, FRAME_SIZE * sizeof tfp->tf_regs[0]); 1647df930be7Sderaadt #endif 1648df930be7Sderaadt bzero(&p->p_addr->u_pcb.pcb_fp, sizeof p->p_addr->u_pcb.pcb_fp); 164950ce9ee0Sniklas alpha_pal_wrusp(stack); 165050ce9ee0Sniklas tfp->tf_regs[FRAME_PS] = ALPHA_PSL_USERSET; 165150ce9ee0Sniklas tfp->tf_regs[FRAME_PC] = pack->ep_entry & ~3; 1652df930be7Sderaadt 165350ce9ee0Sniklas tfp->tf_regs[FRAME_A0] = stack; 165450ce9ee0Sniklas /* a1 and a2 already zeroed */ 165550ce9ee0Sniklas tfp->tf_regs[FRAME_T12] = tfp->tf_regs[FRAME_PC]; /* a.k.a. PV */ 165650ce9ee0Sniklas 165750ce9ee0Sniklas p->p_md.md_flags &= ~MDP_FPUSED; 1658433075b6Spvalchev #ifndef NO_IEEE 1659433075b6Spvalchev if (__predict_true((p->p_md.md_flags & IEEE_INHERIT) == 0)) { 1660433075b6Spvalchev p->p_md.md_flags &= ~MDP_FP_C; 1661433075b6Spvalchev p->p_addr->u_pcb.pcb_fp.fpr_cr = FPCR_DYN(FP_RN); 1662433075b6Spvalchev } 1663433075b6Spvalchev #endif 1664433075b6Spvalchev if (p->p_addr->u_pcb.pcb_fpcpu != NULL) 1665433075b6Spvalchev fpusave_proc(p, 0); 1666ee2d823aSmiod 1667ee2d823aSmiod retval[1] = 0; 1668433075b6Spvalchev } 1669df930be7Sderaadt 1670433075b6Spvalchev /* 1671433075b6Spvalchev * Release the FPU. 1672433075b6Spvalchev */ 1673433075b6Spvalchev void 1674433075b6Spvalchev fpusave_cpu(struct cpu_info *ci, int save) 1675433075b6Spvalchev { 1676433075b6Spvalchev struct proc *p; 167721c23d01Smiod #if defined(MULTIPROCESSOR) 167821c23d01Smiod int s; 167921c23d01Smiod #endif 1680433075b6Spvalchev 1681433075b6Spvalchev KDASSERT(ci == curcpu()); 1682433075b6Spvalchev 1683433075b6Spvalchev #if defined(MULTIPROCESSOR) 168421c23d01Smiod /* Need to block IPIs */ 16852d7472daSmiod s = splipi(); 1686433075b6Spvalchev atomic_setbits_ulong(&ci->ci_flags, CPUF_FPUSAVE); 1687433075b6Spvalchev #endif 1688433075b6Spvalchev 1689433075b6Spvalchev p = ci->ci_fpcurproc; 1690433075b6Spvalchev if (p == NULL) 1691433075b6Spvalchev goto out; 1692433075b6Spvalchev 1693433075b6Spvalchev if (save) { 1694433075b6Spvalchev alpha_pal_wrfen(1); 1695433075b6Spvalchev savefpstate(&p->p_addr->u_pcb.pcb_fp); 1696433075b6Spvalchev } 1697433075b6Spvalchev 1698433075b6Spvalchev alpha_pal_wrfen(0); 1699433075b6Spvalchev 1700433075b6Spvalchev p->p_addr->u_pcb.pcb_fpcpu = NULL; 1701433075b6Spvalchev ci->ci_fpcurproc = NULL; 1702433075b6Spvalchev 1703433075b6Spvalchev out: 1704433075b6Spvalchev #if defined(MULTIPROCESSOR) 1705433075b6Spvalchev atomic_clearbits_ulong(&ci->ci_flags, CPUF_FPUSAVE); 17064fa86cc0Smiod alpha_pal_swpipl(s); 1707433075b6Spvalchev #endif 1708433075b6Spvalchev return; 1709433075b6Spvalchev } 1710433075b6Spvalchev 1711433075b6Spvalchev /* 1712433075b6Spvalchev * Synchronize FP state for this process. 1713433075b6Spvalchev */ 1714433075b6Spvalchev void 1715433075b6Spvalchev fpusave_proc(struct proc *p, int save) 1716433075b6Spvalchev { 1717433075b6Spvalchev struct cpu_info *ci = curcpu(); 1718433075b6Spvalchev struct cpu_info *oci; 1719433075b6Spvalchev #if defined(MULTIPROCESSOR) 1720433075b6Spvalchev u_long ipi = save ? ALPHA_IPI_SYNCH_FPU : ALPHA_IPI_DISCARD_FPU; 17212d7472daSmiod int s; 1722433075b6Spvalchev #endif 1723433075b6Spvalchev 1724433075b6Spvalchev KDASSERT(p->p_addr != NULL); 1725433075b6Spvalchev 17262d7472daSmiod for (;;) { 172721c23d01Smiod #if defined(MULTIPROCESSOR) 172821c23d01Smiod /* Need to block IPIs */ 17292d7472daSmiod s = splipi(); 173021c23d01Smiod #endif 173121c23d01Smiod 1732433075b6Spvalchev oci = p->p_addr->u_pcb.pcb_fpcpu; 1733433075b6Spvalchev if (oci == NULL) { 173421c23d01Smiod #if defined(MULTIPROCESSOR) 17354fa86cc0Smiod alpha_pal_swpipl(s); 173621c23d01Smiod #endif 1737433075b6Spvalchev return; 1738433075b6Spvalchev } 1739433075b6Spvalchev 1740433075b6Spvalchev #if defined(MULTIPROCESSOR) 1741433075b6Spvalchev if (oci == ci) { 1742433075b6Spvalchev KASSERT(ci->ci_fpcurproc == p); 17434fa86cc0Smiod alpha_pal_swpipl(s); 1744433075b6Spvalchev fpusave_cpu(ci, save); 1745433075b6Spvalchev return; 1746433075b6Spvalchev } 1747433075b6Spvalchev 17482d7472daSmiod /* 17492d7472daSmiod * The other cpu may still be running and could have 17502d7472daSmiod * discarded the fpu context on its own. 17512d7472daSmiod */ 175289043825Smiod if (oci->ci_fpcurproc != p) { 175389043825Smiod alpha_pal_swpipl(s); 17542d7472daSmiod continue; 175589043825Smiod } 17562d7472daSmiod 1757433075b6Spvalchev alpha_send_ipi(oci->ci_cpuid, ipi); 17584fa86cc0Smiod alpha_pal_swpipl(s); 1759433075b6Spvalchev 17602d7472daSmiod while (p->p_addr->u_pcb.pcb_fpcpu != NULL) 1761*275e6a2fSmpi CPU_BUSY_CYCLE(); 1762433075b6Spvalchev #else 1763433075b6Spvalchev KASSERT(ci->ci_fpcurproc == p); 1764433075b6Spvalchev fpusave_cpu(ci, save); 1765433075b6Spvalchev #endif /* MULTIPROCESSOR */ 17662d7472daSmiod 17672d7472daSmiod break; 17682d7472daSmiod } 1769df930be7Sderaadt } 1770df930be7Sderaadt 1771df930be7Sderaadt int 1772df930be7Sderaadt spl0() 1773df930be7Sderaadt { 1774df930be7Sderaadt 1775aed035abSart if (ssir) { 1776aed035abSart (void) alpha_pal_swpipl(ALPHA_PSL_IPL_SOFT); 17772a2685f2Sart softintr_dispatch(); 1778aed035abSart } 1779df930be7Sderaadt 178050ce9ee0Sniklas return (alpha_pal_swpipl(ALPHA_PSL_IPL_0)); 1781df930be7Sderaadt } 1782df930be7Sderaadt 1783df930be7Sderaadt /* 1784417eba8cSderaadt * Wait "n" microseconds. 1785417eba8cSderaadt */ 178650ce9ee0Sniklas void 1787417eba8cSderaadt delay(n) 178850ce9ee0Sniklas unsigned long n; 1789417eba8cSderaadt { 17905d097e9eSmiod unsigned long pcc0, pcc1, curcycle, cycles, usec; 17915d097e9eSmiod 17925d097e9eSmiod if (n == 0) 17935d097e9eSmiod return; 17945d097e9eSmiod 17955d097e9eSmiod pcc0 = alpha_rpcc() & 0xffffffffUL; 17965d097e9eSmiod cycles = 0; 17975d097e9eSmiod usec = 0; 17985d097e9eSmiod 17995d097e9eSmiod while (usec <= n) { 18005d097e9eSmiod /* 18015d097e9eSmiod * Get the next CPU cycle count - assumes that we can not 18025d097e9eSmiod * have had more than one 32 bit overflow. 18035d097e9eSmiod */ 18045d097e9eSmiod pcc1 = alpha_rpcc() & 0xffffffffUL; 18055d097e9eSmiod if (pcc1 < pcc0) 18065d097e9eSmiod curcycle = (pcc1 + 0x100000000UL) - pcc0; 18075d097e9eSmiod else 18085d097e9eSmiod curcycle = pcc1 - pcc0; 1809417eba8cSderaadt 1810aed035abSart /* 18115d097e9eSmiod * We now have the number of processor cycles since we 18125d097e9eSmiod * last checked. Add the current cycle count to the 18135d097e9eSmiod * running total. If it's over cycles_per_usec, increment 18145d097e9eSmiod * the usec counter. 1815aed035abSart */ 18165d097e9eSmiod cycles += curcycle; 181721c23d01Smiod while (cycles >= cycles_per_usec) { 18185d097e9eSmiod usec++; 18195d097e9eSmiod cycles -= cycles_per_usec; 18205d097e9eSmiod } 18215d097e9eSmiod pcc0 = pcc1; 18225d097e9eSmiod } 1823417eba8cSderaadt } 1824417eba8cSderaadt 1825aed035abSart int 1826aed035abSart alpha_pa_access(pa) 1827aed035abSart u_long pa; 1828aed035abSart { 1829aed035abSart int i; 1830aed035abSart 1831aed035abSart for (i = 0; i < mem_cluster_cnt; i++) { 1832aed035abSart if (pa < mem_clusters[i].start) 1833aed035abSart continue; 1834aed035abSart if ((pa - mem_clusters[i].start) >= 1835aed035abSart (mem_clusters[i].size & ~PAGE_MASK)) 1836aed035abSart continue; 1837aed035abSart return (mem_clusters[i].size & PAGE_MASK); /* prot */ 1838aed035abSart } 1839aed035abSart 1840aed035abSart /* 1841aed035abSart * Address is not a memory address. If we're secure, disallow 1842aed035abSart * access. Otherwise, grant read/write. 1843aed035abSart */ 1844aed035abSart if (securelevel > 0) 18451e8cdc2eSderaadt return (PROT_NONE); 1846aed035abSart else 18471e8cdc2eSderaadt return (PROT_READ | PROT_WRITE); 1848aed035abSart } 1849aed035abSart 1850e464495eSniklas /* XXX XXX BEGIN XXX XXX */ 1851aed035abSart paddr_t alpha_XXX_dmamap_or; /* XXX */ 1852e464495eSniklas /* XXX */ 1853aed035abSart paddr_t /* XXX */ 1854e464495eSniklas alpha_XXX_dmamap(v) /* XXX */ 1855aed035abSart vaddr_t v; /* XXX */ 1856e464495eSniklas { /* XXX */ 1857e464495eSniklas /* XXX */ 1858e464495eSniklas return (vtophys(v) | alpha_XXX_dmamap_or); /* XXX */ 1859e464495eSniklas } /* XXX */ 1860e464495eSniklas /* XXX XXX END XXX XXX */ 1861