1*e99873aaSderaadt /* $OpenBSD: machdep.c,v 1.174 2016/05/21 00:56:41 deraadt 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 108247cdf31Sdlg #ifdef MULTIPROCESSOR 109247cdf31Sdlg #include <machine/lock.h> 110247cdf31Sdlg #endif 111df930be7Sderaadt 11245e5a1a0Sart #include <dev/pci/pcivar.h> 11345e5a1a0Sart 11412f8bbedSniklas #ifdef DDB 11512f8bbedSniklas #include <machine/db_machdep.h> 11612f8bbedSniklas #include <ddb/db_extern.h> 11721c23d01Smiod #include <ddb/db_interface.h> 11812f8bbedSniklas #endif 11912f8bbedSniklas 120a072164aSmiod #include "ioasic.h" 121a072164aSmiod 122a072164aSmiod #if NIOASIC > 0 123a072164aSmiod #include <machine/tc_machdep.h> 124a072164aSmiod #include <dev/tc/tcreg.h> 125a072164aSmiod #include <dev/tc/ioasicvar.h> 126a072164aSmiod #endif 127a072164aSmiod 128c4071fd1Smillert int cpu_dump(void); 129c4071fd1Smillert int cpu_dumpsize(void); 130c4071fd1Smillert u_long cpu_dump_mempagecnt(void); 131c4071fd1Smillert void dumpsys(void); 132c4071fd1Smillert void identifycpu(void); 133c4071fd1Smillert void regdump(struct trapframe *framep); 134c4071fd1Smillert void printregs(struct reg *); 135df930be7Sderaadt 136b426ab7bSthib struct uvm_constraint_range isa_constraint = { 0x0, 0x00ffffffUL }; 137b426ab7bSthib struct uvm_constraint_range dma_constraint = { 0x0, (paddr_t)-1 }; 138b426ab7bSthib struct uvm_constraint_range *uvm_md_constraints[] = { 139b426ab7bSthib &isa_constraint, 140b426ab7bSthib NULL 141b426ab7bSthib }; 142b426ab7bSthib 143ab8e80c5Sart struct vm_map *exec_map = NULL; 144ab8e80c5Sart struct vm_map *phys_map = NULL; 145aed035abSart 146c72644a3Sderaadt /* 147c72644a3Sderaadt * safepri is a safe priority for sleep to set for a spin-wait 148c72644a3Sderaadt * during autoconfiguration or after a panic. 149c72644a3Sderaadt */ 150c72644a3Sderaadt int safepri = 0; 151c72644a3Sderaadt 15227626149Smatthieu #ifdef APERTURE 15327626149Smatthieu #ifdef INSECURE 15427626149Smatthieu int allowaperture = 1; 15527626149Smatthieu #else 15627626149Smatthieu int allowaperture = 0; 15727626149Smatthieu #endif 15827626149Smatthieu #endif 15927626149Smatthieu 160df930be7Sderaadt int totalphysmem; /* total amount of physical memory in system */ 16174652a67Sniklas int physmem; /* physical mem used by OpenBSD + some rsvd */ 162df930be7Sderaadt int resvmem; /* amount of memory reserved for PROM */ 163df930be7Sderaadt int unusedmem; /* amount of memory for OS that we don't use */ 164df930be7Sderaadt int unknownmem; /* amount of memory with an unknown use */ 165df930be7Sderaadt 166df930be7Sderaadt int cputype; /* system type, from the RPB */ 167df930be7Sderaadt 1682a2685f2Sart int bootdev_debug = 0; /* patchable, or from DDB */ 1692a2685f2Sart 170df930be7Sderaadt /* the following is used externally (sysctl_hw) */ 171aed035abSart char machine[] = MACHINE; /* from <machine/param.h> */ 172417eba8cSderaadt char cpu_model[128]; 173df930be7Sderaadt 174df930be7Sderaadt struct user *proc0paddr; 175df930be7Sderaadt 176df930be7Sderaadt /* Number of machine cycles per microsecond */ 177df930be7Sderaadt u_int64_t cycles_per_usec; 178df930be7Sderaadt 179aed035abSart struct bootinfo_kernel bootinfo; 180aed035abSart 181b1560ceaSmiod struct consdev *cn_tab; 182b1560ceaSmiod 183aed035abSart /* For built-in TCDS */ 184aed035abSart #if defined(DEC_3000_300) || defined(DEC_3000_500) 185aed035abSart u_int8_t dec_3000_scsiid[2], dec_3000_scsifast[2]; 186aed035abSart #endif 187aed035abSart 188aed035abSart struct platform platform; 189417eba8cSderaadt 190417eba8cSderaadt /* for cpu_sysctl() */ 19150ce9ee0Sniklas int alpha_unaligned_print = 1; /* warn about unaligned accesses */ 19250ce9ee0Sniklas int alpha_unaligned_fix = 1; /* fix up unaligned accesses */ 193881c1eabSart int alpha_unaligned_sigbus = 1; /* SIGBUS on fixed-up accesses */ 194433075b6Spvalchev #ifndef NO_IEEE 195433075b6Spvalchev int alpha_fp_sync_complete = 0; /* fp fixup if sync even without /s */ 196433075b6Spvalchev #endif 197a072164aSmiod #if NIOASIC > 0 19891c0e687Sderaadt int alpha_led_blink = 1; 199a072164aSmiod #endif 20050ce9ee0Sniklas 201b3cee53eSmartin /* used by hw_sysctl */ 202b3cee53eSmartin extern char *hw_serial; 203b3cee53eSmartin 204aed035abSart /* 205aed035abSart * XXX This should be dynamically sized, but we have the chicken-egg problem! 206aed035abSart * XXX it should also be larger than it is, because not all of the mddt 207aed035abSart * XXX clusters end up being used for VM. 208aed035abSart */ 209aed035abSart phys_ram_seg_t mem_clusters[VM_PHYSSEG_MAX]; /* low size bits overloaded */ 210aed035abSart int mem_cluster_cnt; 211aed035abSart 2123a630e3fSniklas void 213dd3e8537Smiod alpha_init(unused, ptb, bim, bip, biv) 214dd3e8537Smiod u_long unused; 215df930be7Sderaadt u_long ptb; /* PFN of current level 1 page table */ 216aed035abSart u_long bim; /* bootinfo magic */ 217aed035abSart u_long bip; /* bootinfo pointer */ 218aed035abSart u_long biv; /* bootinfo version */ 219df930be7Sderaadt { 220aed035abSart extern char kernel_text[], _end[]; 221df930be7Sderaadt struct mddt *mddtp; 222aed035abSart struct mddt_cluster *memc; 223df930be7Sderaadt int i, mddtweird; 224aed035abSart struct vm_physseg *vps; 225aed035abSart vaddr_t kernstart, kernend; 226aed035abSart paddr_t kernstartpfn, kernendpfn, pfn0, pfn1; 227df930be7Sderaadt char *p; 2282a2685f2Sart const char *bootinfo_msg; 229aed035abSart const struct cpuinit *c; 230aed035abSart extern caddr_t esym; 231aed035abSart struct cpu_info *ci; 232aed035abSart cpuid_t cpu_id; 233df930be7Sderaadt 234aed035abSart /* NO OUTPUT ALLOWED UNTIL FURTHER NOTICE */ 235f3914c62Sniklas 236df930be7Sderaadt /* 237aed035abSart * Turn off interrupts (not mchecks) and floating point. 238df930be7Sderaadt * Make sure the instruction and data streams are consistent. 239df930be7Sderaadt */ 240aed035abSart (void)alpha_pal_swpipl(ALPHA_PSL_IPL_HIGH); 24150ce9ee0Sniklas alpha_pal_wrfen(0); 24250ce9ee0Sniklas ALPHA_TBIA(); 24350ce9ee0Sniklas alpha_pal_imb(); 244df930be7Sderaadt 245c62181b1Sbrad /* Initialize the SCB. */ 246c62181b1Sbrad scb_init(); 247c62181b1Sbrad 248aed035abSart cpu_id = cpu_number(); 249aed035abSart 250aed035abSart #if defined(MULTIPROCESSOR) 251df930be7Sderaadt /* 252aed035abSart * Set our SysValue to the address of our cpu_info structure. 253aed035abSart * Secondary processors do this in their spinup trampoline. 254df930be7Sderaadt */ 25521c23d01Smiod alpha_pal_wrval((u_long)&cpu_info_primary); 25621c23d01Smiod cpu_info[cpu_id] = &cpu_info_primary; 257aed035abSart #endif 258aed035abSart 259aed035abSart ci = curcpu(); 260aed035abSart ci->ci_cpuid = cpu_id; 261aed035abSart 262aed035abSart /* 263aed035abSart * Get critical system information (if possible, from the 264aed035abSart * information provided by the boot program). 265aed035abSart */ 266aed035abSart bootinfo_msg = NULL; 267aed035abSart if (bim == BOOTINFO_MAGIC) { 268aed035abSart if (biv == 0) { /* backward compat */ 269aed035abSart biv = *(u_long *)bip; 270aed035abSart bip += 8; 271aed035abSart } 272aed035abSart switch (biv) { 273aed035abSart case 1: { 274aed035abSart struct bootinfo_v1 *v1p = (struct bootinfo_v1 *)bip; 275aed035abSart 276aed035abSart bootinfo.ssym = v1p->ssym; 277aed035abSart bootinfo.esym = v1p->esym; 278aed035abSart /* hwrpb may not be provided by boot block in v1 */ 279aed035abSart if (v1p->hwrpb != NULL) { 280aed035abSart bootinfo.hwrpb_phys = 281aed035abSart ((struct rpb *)v1p->hwrpb)->rpb_phys; 282aed035abSart bootinfo.hwrpb_size = v1p->hwrpbsize; 283aed035abSart } else { 284aed035abSart bootinfo.hwrpb_phys = 285aed035abSart ((struct rpb *)HWRPB_ADDR)->rpb_phys; 286aed035abSart bootinfo.hwrpb_size = 287aed035abSart ((struct rpb *)HWRPB_ADDR)->rpb_size; 288aed035abSart } 289aed035abSart bcopy(v1p->boot_flags, bootinfo.boot_flags, 290aed035abSart min(sizeof v1p->boot_flags, 291aed035abSart sizeof bootinfo.boot_flags)); 292aed035abSart bcopy(v1p->booted_kernel, bootinfo.booted_kernel, 293aed035abSart min(sizeof v1p->booted_kernel, 294aed035abSart sizeof bootinfo.booted_kernel)); 295aed035abSart /* booted dev not provided in bootinfo */ 296aed035abSart init_prom_interface((struct rpb *) 297aed035abSart ALPHA_PHYS_TO_K0SEG(bootinfo.hwrpb_phys)); 298aed035abSart prom_getenv(PROM_E_BOOTED_DEV, bootinfo.booted_dev, 299aed035abSart sizeof bootinfo.booted_dev); 300aed035abSart break; 301aed035abSart } 302aed035abSart default: 303aed035abSart bootinfo_msg = "unknown bootinfo version"; 304aed035abSart goto nobootinfo; 305aed035abSart } 306aed035abSart } else { 307aed035abSart bootinfo_msg = "boot program did not pass bootinfo"; 308aed035abSart nobootinfo: 309aed035abSart bootinfo.ssym = (u_long)_end; 310aed035abSart bootinfo.esym = (u_long)_end; 311aed035abSart bootinfo.hwrpb_phys = ((struct rpb *)HWRPB_ADDR)->rpb_phys; 312aed035abSart bootinfo.hwrpb_size = ((struct rpb *)HWRPB_ADDR)->rpb_size; 313aed035abSart init_prom_interface((struct rpb *)HWRPB_ADDR); 314aed035abSart prom_getenv(PROM_E_BOOTED_OSFLAGS, bootinfo.boot_flags, 315aed035abSart sizeof bootinfo.boot_flags); 316aed035abSart prom_getenv(PROM_E_BOOTED_FILE, bootinfo.booted_kernel, 317aed035abSart sizeof bootinfo.booted_kernel); 318aed035abSart prom_getenv(PROM_E_BOOTED_DEV, bootinfo.booted_dev, 319aed035abSart sizeof bootinfo.booted_dev); 320aed035abSart } 321aed035abSart 322aed035abSart esym = (caddr_t)bootinfo.esym; 323aed035abSart /* 324aed035abSart * Initialize the kernel's mapping of the RPB. It's needed for 325aed035abSart * lots of things. 326aed035abSart */ 327aed035abSart hwrpb = (struct rpb *)ALPHA_PHYS_TO_K0SEG(bootinfo.hwrpb_phys); 328aed035abSart 329aed035abSart #if defined(DEC_3000_300) || defined(DEC_3000_500) 330aed035abSart if (hwrpb->rpb_type == ST_DEC_3000_300 || 331aed035abSart hwrpb->rpb_type == ST_DEC_3000_500) { 332aed035abSart prom_getenv(PROM_E_SCSIID, dec_3000_scsiid, 333aed035abSart sizeof(dec_3000_scsiid)); 334aed035abSart prom_getenv(PROM_E_SCSIFAST, dec_3000_scsifast, 335aed035abSart sizeof(dec_3000_scsifast)); 336aed035abSart } 337aed035abSart #endif 338df930be7Sderaadt 339df930be7Sderaadt /* 340df930be7Sderaadt * Remember how many cycles there are per microsecond, 341df930be7Sderaadt * so that we can use delay(). Round up, for safety. 342df930be7Sderaadt */ 343df930be7Sderaadt cycles_per_usec = (hwrpb->rpb_cc_freq + 999999) / 1000000; 344df930be7Sderaadt 345df930be7Sderaadt /* 3469e71c994Saaron * Initialize the (temporary) bootstrap console interface, so 347aed035abSart * we can use printf until the VM system starts being setup. 348aed035abSart * The real console is initialized before then. 349df930be7Sderaadt */ 350aed035abSart init_bootstrap_console(); 351aed035abSart 352aed035abSart /* OUTPUT NOW ALLOWED */ 353aed035abSart 354aed035abSart /* delayed from above */ 355aed035abSart if (bootinfo_msg) 356aed035abSart printf("WARNING: %s (0x%lx, 0x%lx, 0x%lx)\n", 357aed035abSart bootinfo_msg, bim, bip, biv); 358aed035abSart 359aed035abSart /* Initialize the trap vectors on the primary processor. */ 360aed035abSart trap_init(); 361df930be7Sderaadt 362df930be7Sderaadt /* 363aed035abSart * Find out what hardware we're on, and do basic initialization. 364df930be7Sderaadt */ 365aed035abSart cputype = hwrpb->rpb_type; 366aed035abSart if (cputype < 0) { 367aed035abSart /* 368aed035abSart * At least some white-box systems have SRM which 369aed035abSart * reports a systype that's the negative of their 370aed035abSart * blue-box counterpart. 371aed035abSart */ 372aed035abSart cputype = -cputype; 373aed035abSart } 374aed035abSart c = platform_lookup(cputype); 375aed035abSart if (c == NULL) { 376aed035abSart platform_not_supported(); 377aed035abSart /* NOTREACHED */ 378aed035abSart } 379aed035abSart (*c->init)(); 380094fa01fSderaadt strlcpy(cpu_model, platform.model, sizeof cpu_model); 38150ce9ee0Sniklas 38250ce9ee0Sniklas /* 3839e71c994Saaron * Initialize the real console, so that the bootstrap console is 384aed035abSart * no longer necessary. 38550ce9ee0Sniklas */ 386aed035abSart (*platform.cons_init)(); 387aed035abSart 388a55851f4Sderaadt #if 0 389aed035abSart /* Paranoid sanity checking */ 390aed035abSart 391aed035abSart assert(hwrpb->rpb_primary_cpu_id == alpha_pal_whami()); 392aed035abSart 393aed035abSart /* 394aed035abSart * On single-CPU systypes, the primary should always be CPU 0, 395aed035abSart * except on Alpha 8200 systems where the CPU id is related 396aed035abSart * to the VID, which is related to the Turbo Laser node id. 397aed035abSart */ 398aed035abSart if (cputype != ST_DEC_21000) 399aed035abSart assert(hwrpb->rpb_primary_cpu_id == 0); 400aed035abSart #endif 401aed035abSart 402aed035abSart /* NO MORE FIRMWARE ACCESS ALLOWED */ 403aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 404aed035abSart /* 405aed035abSart * XXX (unless _PMAP_MAY_USE_PROM_CONSOLE is defined and 406aed035abSart * XXX pmap_uses_prom_console() evaluates to non-zero.) 407aed035abSart */ 408aed035abSart #endif 409aed035abSart 410cfcdef40Smiod #ifndef SMALL_KERNEL 411cfcdef40Smiod /* 412cfcdef40Smiod * If we run on a BWX-capable processor, override cpu_switch 413cfcdef40Smiod * with a faster version. 414cfcdef40Smiod * We do this now because the kernel text might be mapped 415cfcdef40Smiod * read-only eventually (although this is not the case at the moment). 416cfcdef40Smiod */ 417cfcdef40Smiod if (alpha_implver() >= ALPHA_IMPLVER_EV5) { 418cfcdef40Smiod if (~alpha_amask(ALPHA_AMASK_BWX) != 0) { 419cfcdef40Smiod extern vaddr_t __bwx_switch0, __bwx_switch1, 420cfcdef40Smiod __bwx_switch2, __bwx_switch3; 421cfcdef40Smiod u_int32_t *dst, *src, *end; 422cfcdef40Smiod 423cfcdef40Smiod src = (u_int32_t *)&__bwx_switch2; 424cfcdef40Smiod end = (u_int32_t *)&__bwx_switch3; 425cfcdef40Smiod dst = (u_int32_t *)&__bwx_switch0; 426cfcdef40Smiod while (src != end) 427cfcdef40Smiod *dst++ = *src++; 428cfcdef40Smiod src = (u_int32_t *)&__bwx_switch1; 429cfcdef40Smiod end = (u_int32_t *)&__bwx_switch2; 430cfcdef40Smiod while (src != end) 431cfcdef40Smiod *dst++ = *src++; 432cfcdef40Smiod } 433cfcdef40Smiod } 434cfcdef40Smiod #endif 435cfcdef40Smiod 436aed035abSart /* 437aed035abSart * find out this system's page size 438aed035abSart */ 43973b9fe7cSart if ((uvmexp.pagesize = hwrpb->rpb_page_size) != 8192) 44073b9fe7cSart panic("page size %d != 8192?!", uvmexp.pagesize); 441aed035abSart 442aed035abSart uvm_setpagesize(); 443aed035abSart 444aed035abSart /* 445aed035abSart * Find the beginning and end of the kernel (and leave a 446aed035abSart * bit of space before the beginning for the bootstrap 447aed035abSart * stack). 448aed035abSart */ 449aed035abSart kernstart = trunc_page((vaddr_t)kernel_text) - 2 * PAGE_SIZE; 450aed035abSart kernend = (vaddr_t)round_page((vaddr_t)bootinfo.esym); 451aed035abSart 452aed035abSart kernstartpfn = atop(ALPHA_K0SEG_TO_PHYS(kernstart)); 453aed035abSart kernendpfn = atop(ALPHA_K0SEG_TO_PHYS(kernend)); 454df930be7Sderaadt 455df930be7Sderaadt /* 456df930be7Sderaadt * Find out how much memory is available, by looking at 457df930be7Sderaadt * the memory cluster descriptors. This also tries to do 458df930be7Sderaadt * its best to detect things things that have never been seen 459df930be7Sderaadt * before... 460df930be7Sderaadt */ 461df930be7Sderaadt mddtp = (struct mddt *)(((caddr_t)hwrpb) + hwrpb->rpb_memdat_off); 462df930be7Sderaadt 463aed035abSart /* MDDT SANITY CHECKING */ 464df930be7Sderaadt mddtweird = 0; 465aed035abSart if (mddtp->mddt_cluster_cnt < 2) { 466df930be7Sderaadt mddtweird = 1; 467aed035abSart printf("WARNING: weird number of mem clusters: %lu\n", 468e86d96d5Smiod (unsigned long)mddtp->mddt_cluster_cnt); 469df930be7Sderaadt } 470df930be7Sderaadt 471aed035abSart #if 0 472aed035abSart printf("Memory cluster count: %d\n", mddtp->mddt_cluster_cnt); 473aed035abSart #endif 474df930be7Sderaadt 475aed035abSart for (i = 0; i < mddtp->mddt_cluster_cnt; i++) { 476aed035abSart memc = &mddtp->mddt_clusters[i]; 477aed035abSart #if 0 478aed035abSart printf("MEMC %d: pfn 0x%lx cnt 0x%lx usage 0x%lx\n", i, 479aed035abSart memc->mddt_pfn, memc->mddt_pg_cnt, memc->mddt_usage); 480aed035abSart #endif 481aed035abSart totalphysmem += memc->mddt_pg_cnt; 482aed035abSart if (mem_cluster_cnt < VM_PHYSSEG_MAX) { /* XXX */ 483aed035abSart mem_clusters[mem_cluster_cnt].start = 484aed035abSart ptoa(memc->mddt_pfn); 485aed035abSart mem_clusters[mem_cluster_cnt].size = 486aed035abSart ptoa(memc->mddt_pg_cnt); 487aed035abSart if (memc->mddt_usage & MDDT_mbz || 488aed035abSart memc->mddt_usage & MDDT_NONVOLATILE || /* XXX */ 489aed035abSart memc->mddt_usage & MDDT_PALCODE) 490aed035abSart mem_clusters[mem_cluster_cnt].size |= 4911e8cdc2eSderaadt PROT_READ; 492aed035abSart else 493aed035abSart mem_clusters[mem_cluster_cnt].size |= 4941e8cdc2eSderaadt PROT_READ | PROT_WRITE | PROT_EXEC; 495aed035abSart mem_cluster_cnt++; 496ee2d823aSmiod } /* XXX else print something! */ 497aed035abSart 498aed035abSart if (memc->mddt_usage & MDDT_mbz) { 499aed035abSart mddtweird = 1; 500aed035abSart printf("WARNING: mem cluster %d has weird " 501e86d96d5Smiod "usage 0x%lx\n", i, (long)memc->mddt_usage); 502aed035abSart unknownmem += memc->mddt_pg_cnt; 503aed035abSart continue; 504aed035abSart } 505aed035abSart if (memc->mddt_usage & MDDT_NONVOLATILE) { 506aed035abSart /* XXX should handle these... */ 507aed035abSart printf("WARNING: skipping non-volatile mem " 508aed035abSart "cluster %d\n", i); 509aed035abSart unusedmem += memc->mddt_pg_cnt; 510aed035abSart continue; 511aed035abSart } 512aed035abSart if (memc->mddt_usage & MDDT_PALCODE) { 513aed035abSart resvmem += memc->mddt_pg_cnt; 514aed035abSart continue; 515aed035abSart } 516aed035abSart 517aed035abSart /* 518aed035abSart * We have a memory cluster available for system 519aed035abSart * software use. We must determine if this cluster 520aed035abSart * holds the kernel. 521aed035abSart */ 522aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 523aed035abSart /* 524aed035abSart * XXX If the kernel uses the PROM console, we only use the 525aed035abSart * XXX memory after the kernel in the first system segment, 526aed035abSart * XXX to avoid clobbering prom mapping, data, etc. 527aed035abSart */ 528aed035abSart if (!pmap_uses_prom_console() || physmem == 0) { 529aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 530aed035abSart physmem += memc->mddt_pg_cnt; 531aed035abSart pfn0 = memc->mddt_pfn; 532aed035abSart pfn1 = memc->mddt_pfn + memc->mddt_pg_cnt; 533aed035abSart if (pfn0 <= kernstartpfn && kernendpfn <= pfn1) { 534aed035abSart /* 535aed035abSart * Must compute the location of the kernel 536aed035abSart * within the segment. 537aed035abSart */ 538aed035abSart #if 0 539aed035abSart printf("Cluster %d contains kernel\n", i); 540aed035abSart #endif 541aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 542aed035abSart if (!pmap_uses_prom_console()) { 543aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 544aed035abSart if (pfn0 < kernstartpfn) { 545aed035abSart /* 546aed035abSart * There is a chunk before the kernel. 547aed035abSart */ 548aed035abSart #if 0 549aed035abSart printf("Loading chunk before kernel: " 550aed035abSart "0x%lx / 0x%lx\n", pfn0, kernstartpfn); 551aed035abSart #endif 552aed035abSart uvm_page_physload(pfn0, kernstartpfn, 5532ce3b4a8Soga pfn0, kernstartpfn, 0); 554aed035abSart } 555aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 556aed035abSart } 557aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 558aed035abSart if (kernendpfn < pfn1) { 559aed035abSart /* 560aed035abSart * There is a chunk after the kernel. 561aed035abSart */ 562aed035abSart #if 0 563aed035abSart printf("Loading chunk after kernel: " 564aed035abSart "0x%lx / 0x%lx\n", kernendpfn, pfn1); 565aed035abSart #endif 566aed035abSart uvm_page_physload(kernendpfn, pfn1, 5672ce3b4a8Soga kernendpfn, pfn1, 0); 568aed035abSart } 569aed035abSart } else { 570aed035abSart /* 571aed035abSart * Just load this cluster as one chunk. 572aed035abSart */ 573aed035abSart #if 0 574aed035abSart printf("Loading cluster %d: 0x%lx / 0x%lx\n", i, 575aed035abSart pfn0, pfn1); 576aed035abSart #endif 5772ce3b4a8Soga uvm_page_physload(pfn0, pfn1, pfn0, pfn1, 0); 578aed035abSart } 579aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 580aed035abSart } 581aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 582aed035abSart } 583aed035abSart 584a37778bcSderaadt #ifdef DEBUG 585aed035abSart /* 586aed035abSart * Dump out the MDDT if it looks odd... 587aed035abSart */ 588df930be7Sderaadt if (mddtweird) { 589df930be7Sderaadt printf("\n"); 590df930be7Sderaadt printf("complete memory cluster information:\n"); 591df930be7Sderaadt for (i = 0; i < mddtp->mddt_cluster_cnt; i++) { 592df930be7Sderaadt printf("mddt %d:\n", i); 593df930be7Sderaadt printf("\tpfn %lx\n", 594df930be7Sderaadt mddtp->mddt_clusters[i].mddt_pfn); 595df930be7Sderaadt printf("\tcnt %lx\n", 596df930be7Sderaadt mddtp->mddt_clusters[i].mddt_pg_cnt); 597df930be7Sderaadt printf("\ttest %lx\n", 598df930be7Sderaadt mddtp->mddt_clusters[i].mddt_pg_test); 599df930be7Sderaadt printf("\tbva %lx\n", 600df930be7Sderaadt mddtp->mddt_clusters[i].mddt_v_bitaddr); 601df930be7Sderaadt printf("\tbpa %lx\n", 602df930be7Sderaadt mddtp->mddt_clusters[i].mddt_p_bitaddr); 603df930be7Sderaadt printf("\tbcksum %lx\n", 604df930be7Sderaadt mddtp->mddt_clusters[i].mddt_bit_cksum); 605df930be7Sderaadt printf("\tusage %lx\n", 606df930be7Sderaadt mddtp->mddt_clusters[i].mddt_usage); 607df930be7Sderaadt } 608df930be7Sderaadt printf("\n"); 609df930be7Sderaadt } 610a37778bcSderaadt #endif 611df930be7Sderaadt 612df930be7Sderaadt if (totalphysmem == 0) 613df930be7Sderaadt panic("can't happen: system seems to have no memory!"); 614df930be7Sderaadt #if 0 615f46637d1Sderaadt printf("totalphysmem = %u\n", totalphysmem); 616f46637d1Sderaadt printf("physmem = %u\n", physmem); 617df930be7Sderaadt printf("resvmem = %d\n", resvmem); 618df930be7Sderaadt printf("unusedmem = %d\n", unusedmem); 619df930be7Sderaadt printf("unknownmem = %d\n", unknownmem); 620df930be7Sderaadt #endif 621df930be7Sderaadt 622df930be7Sderaadt /* 623aed035abSart * Initialize error message buffer (at end of core). 624df930be7Sderaadt */ 625aed035abSart { 626aed035abSart vsize_t sz = (vsize_t)round_page(MSGBUFSIZE); 627aed035abSart vsize_t reqsz = sz; 628df930be7Sderaadt 629aed035abSart vps = &vm_physmem[vm_nphysseg - 1]; 630e1da84e1Salex 631aed035abSart /* shrink so that it'll fit in the last segment */ 632aed035abSart if ((vps->avail_end - vps->avail_start) < atop(sz)) 633aed035abSart sz = ptoa(vps->avail_end - vps->avail_start); 634aed035abSart 635aed035abSart vps->end -= atop(sz); 636aed035abSart vps->avail_end -= atop(sz); 637aed035abSart initmsgbuf((caddr_t) ALPHA_PHYS_TO_K0SEG(ptoa(vps->end)), sz); 638aed035abSart 639aed035abSart /* Remove the last segment if it now has no pages. */ 640aed035abSart if (vps->start == vps->end) 641aed035abSart vm_nphysseg--; 642aed035abSart 643aed035abSart /* warn if the message buffer had to be shrunk */ 644aed035abSart if (sz != reqsz) 645aed035abSart printf("WARNING: %ld bytes not available for msgbuf " 646aed035abSart "in last cluster (%ld used)\n", reqsz, sz); 647aed035abSart 648aed035abSart } 649aed035abSart 650df930be7Sderaadt /* 651df930be7Sderaadt * Init mapping for u page(s) for proc 0 652df930be7Sderaadt */ 653aed035abSart proc0.p_addr = proc0paddr = 654aed035abSart (struct user *)pmap_steal_memory(UPAGES * PAGE_SIZE, NULL, NULL); 655df930be7Sderaadt 656df930be7Sderaadt /* 657df930be7Sderaadt * Initialize the virtual memory system, and set the 658df930be7Sderaadt * page table base register in proc 0's PCB. 659df930be7Sderaadt */ 660aed035abSart pmap_bootstrap(ALPHA_PHYS_TO_K0SEG(ptb << PGSHIFT), 661aed035abSart hwrpb->rpb_max_asn, hwrpb->rpb_pcs_cnt); 662df930be7Sderaadt 663df930be7Sderaadt /* 664df930be7Sderaadt * Initialize the rest of proc 0's PCB, and cache its physical 665df930be7Sderaadt * address. 666df930be7Sderaadt */ 667df930be7Sderaadt proc0.p_md.md_pcbpaddr = 668aed035abSart (struct pcb *)ALPHA_K0SEG_TO_PHYS((vaddr_t)&proc0paddr->u_pcb); 669df930be7Sderaadt 670df930be7Sderaadt /* 671df930be7Sderaadt * Set the kernel sp, reserving space for an (empty) trapframe, 672df930be7Sderaadt * and make proc0's trapframe pointer point to it for sanity. 673df930be7Sderaadt */ 67450ce9ee0Sniklas proc0paddr->u_pcb.pcb_hw.apcb_ksp = 675df930be7Sderaadt (u_int64_t)proc0paddr + USPACE - sizeof(struct trapframe); 67674652a67Sniklas proc0.p_md.md_tf = 67774652a67Sniklas (struct trapframe *)proc0paddr->u_pcb.pcb_hw.apcb_ksp; 67850ce9ee0Sniklas 679aed035abSart /* 680aed035abSart * Initialize the primary CPU's idle PCB to proc0's. In a 681aed035abSart * MULTIPROCESSOR configuration, each CPU will later get 682aed035abSart * its own idle PCB when autoconfiguration runs. 683aed035abSart */ 684aed035abSart ci->ci_idle_pcb = &proc0paddr->u_pcb; 685aed035abSart ci->ci_idle_pcb_paddr = (u_long)proc0.p_md.md_pcbpaddr; 686df930be7Sderaadt 687df930be7Sderaadt /* 688df930be7Sderaadt * Look at arguments passed to us and compute boothowto. 689df930be7Sderaadt */ 690417eba8cSderaadt 691df930be7Sderaadt #ifdef KADB 692df930be7Sderaadt boothowto |= RB_KDB; 693df930be7Sderaadt #endif 694aed035abSart for (p = bootinfo.boot_flags; p && *p != '\0'; p++) { 695417eba8cSderaadt /* 696417eba8cSderaadt * Note that we'd really like to differentiate case here, 697417eba8cSderaadt * but the Alpha AXP Architecture Reference Manual 698417eba8cSderaadt * says that we shouldn't. 699417eba8cSderaadt */ 700df930be7Sderaadt switch (*p) { 701371c77f5Smartin case 'a': /* Ignore */ 702417eba8cSderaadt case 'A': 703df930be7Sderaadt break; 704df930be7Sderaadt 70512f8bbedSniklas case 'b': /* Enter DDB as soon as the console is initialised */ 70612f8bbedSniklas case 'B': 70712f8bbedSniklas boothowto |= RB_KDB; 70812f8bbedSniklas break; 70912f8bbedSniklas 71050ce9ee0Sniklas case 'c': /* enter user kernel configuration */ 71150ce9ee0Sniklas case 'C': 71250ce9ee0Sniklas boothowto |= RB_CONFIG; 71350ce9ee0Sniklas break; 71450ce9ee0Sniklas 71550ce9ee0Sniklas #ifdef DEBUG 71650ce9ee0Sniklas case 'd': /* crash dump immediately after autoconfig */ 71750ce9ee0Sniklas case 'D': 71850ce9ee0Sniklas boothowto |= RB_DUMP; 71950ce9ee0Sniklas break; 72050ce9ee0Sniklas #endif 72150ce9ee0Sniklas 72250ce9ee0Sniklas case 'h': /* always halt, never reboot */ 72350ce9ee0Sniklas case 'H': 72450ce9ee0Sniklas boothowto |= RB_HALT; 725df930be7Sderaadt break; 726df930be7Sderaadt 72750ce9ee0Sniklas 72850ce9ee0Sniklas case 'n': /* askname */ 72950ce9ee0Sniklas case 'N': 73050ce9ee0Sniklas boothowto |= RB_ASKNAME; 73150ce9ee0Sniklas break; 732aed035abSart 733371c77f5Smartin case 's': /* single-user */ 734aed035abSart case 'S': 735aed035abSart boothowto |= RB_SINGLE; 736aed035abSart break; 737aed035abSart 738aed035abSart case '-': 739aed035abSart /* 740aed035abSart * Just ignore this. It's not required, but it's 741aed035abSart * common for it to be passed regardless. 742aed035abSart */ 743aed035abSart break; 744aed035abSart 745aed035abSart default: 746aed035abSart printf("Unrecognized boot flag '%c'.\n", *p); 747aed035abSart break; 748df930be7Sderaadt } 749df930be7Sderaadt } 750df930be7Sderaadt 751aed035abSart 752df930be7Sderaadt /* 753df930be7Sderaadt * Figure out the number of cpus in the box, from RPB fields. 754df930be7Sderaadt * Really. We mean it. 755df930be7Sderaadt */ 75631326ec3Smiod for (ncpusfound = 0, i = 0; i < hwrpb->rpb_pcs_cnt; i++) { 757df930be7Sderaadt struct pcs *pcsp; 758df930be7Sderaadt 759aed035abSart pcsp = LOCATE_PCS(hwrpb, i); 760df930be7Sderaadt if ((pcsp->pcs_flags & PCS_PP) != 0) 76131326ec3Smiod ncpusfound++; 762df930be7Sderaadt } 763aed035abSart 764aed035abSart /* 765aed035abSart * Initialize debuggers, and break into them if appropriate. 766aed035abSart */ 767aed035abSart #ifdef DDB 76821c23d01Smiod db_machine_init(); 769aed035abSart ddb_init(); 770aed035abSart 771aed035abSart if (boothowto & RB_KDB) 772aed035abSart Debugger(); 773aed035abSart #endif 774aed035abSart #ifdef KGDB 775aed035abSart if (boothowto & RB_KDB) 776aed035abSart kgdb_connect(0); 777aed035abSart #endif 778aed035abSart /* 779aed035abSart * Figure out our clock frequency, from RPB fields. 780aed035abSart */ 781aed035abSart hz = hwrpb->rpb_intr_freq >> 12; 782aed035abSart if (!(60 <= hz && hz <= 10240)) { 783aed035abSart #ifdef DIAGNOSTIC 784e86d96d5Smiod printf("WARNING: unbelievable rpb_intr_freq: %lu (%d hz)\n", 785e86d96d5Smiod (unsigned long)hwrpb->rpb_intr_freq, hz); 786aed035abSart #endif 787dd3e8537Smiod hz = 1024; 788aed035abSart } 789aed035abSart } 790aed035abSart 791417eba8cSderaadt void 792df930be7Sderaadt consinit() 793df930be7Sderaadt { 794aed035abSart 795aed035abSart /* 796aed035abSart * Everything related to console initialization is done 797aed035abSart * in alpha_init(). 798aed035abSart */ 799aed035abSart #if defined(DIAGNOSTIC) && defined(_PMAP_MAY_USE_PROM_CONSOLE) 800aed035abSart printf("consinit: %susing prom console\n", 801aed035abSart pmap_uses_prom_console() ? "" : "not "); 80212f8bbedSniklas #endif 803df930be7Sderaadt } 804df930be7Sderaadt 805417eba8cSderaadt void 806df930be7Sderaadt cpu_startup() 807df930be7Sderaadt { 808aed035abSart vaddr_t minaddr, maxaddr; 80950ce9ee0Sniklas #if defined(DEBUG) 810df930be7Sderaadt extern int pmapdebug; 811df930be7Sderaadt int opmapdebug = pmapdebug; 812df930be7Sderaadt 813df930be7Sderaadt pmapdebug = 0; 814df930be7Sderaadt #endif 815df930be7Sderaadt 816df930be7Sderaadt /* 817df930be7Sderaadt * Good {morning,afternoon,evening,night}. 818df930be7Sderaadt */ 819df930be7Sderaadt printf(version); 820df930be7Sderaadt identifycpu(); 821701cd583Smiod printf("real mem = %lu (%luMB)\n", ptoa((psize_t)totalphysmem), 822701cd583Smiod ptoa((psize_t)totalphysmem) / 1024 / 1024); 823701cd583Smiod printf("rsvd mem = %lu (%luMB)\n", ptoa((psize_t)resvmem), 824701cd583Smiod ptoa((psize_t)resvmem) / 1024 / 1024); 825aed035abSart if (unusedmem) { 826701cd583Smiod printf("WARNING: unused memory = %lu (%luMB)\n", 827701cd583Smiod ptoa((psize_t)unusedmem), 828701cd583Smiod ptoa((psize_t)unusedmem) / 1024 / 1024); 829aed035abSart } 830aed035abSart if (unknownmem) { 831701cd583Smiod printf("WARNING: %lu (%luMB) of memory with unknown purpose\n", 832701cd583Smiod ptoa((psize_t)unknownmem), 833701cd583Smiod ptoa((psize_t)unknownmem) / 1024 / 1024); 834aed035abSart } 835df930be7Sderaadt 836df930be7Sderaadt /* 837df930be7Sderaadt * Allocate a submap for exec arguments. This map effectively 838df930be7Sderaadt * limits the number of processes exec'ing at any time. 839df930be7Sderaadt */ 8407c10a71dSdrahn minaddr = vm_map_min(kernel_map); 841aed035abSart exec_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 842aed035abSart 16 * NCARGS, VM_MAP_PAGEABLE, FALSE, NULL); 843df930be7Sderaadt 844df930be7Sderaadt /* 845df930be7Sderaadt * Allocate a submap for physio 846df930be7Sderaadt */ 847aed035abSart phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 848aed035abSart VM_PHYS_SIZE, 0, FALSE, NULL); 849df930be7Sderaadt 85050ce9ee0Sniklas #if defined(DEBUG) 851df930be7Sderaadt pmapdebug = opmapdebug; 852df930be7Sderaadt #endif 853701cd583Smiod printf("avail mem = %lu (%luMB)\n", ptoa((psize_t)uvmexp.free), 854701cd583Smiod ptoa((psize_t)uvmexp.free) / 1024 / 1024); 855aed035abSart #if 0 856aed035abSart { 857aed035abSart extern u_long pmap_pages_stolen; 858aed035abSart 859aed035abSart printf("stolen memory for VM structures = %d\n", pmap_pages_stolen * PAGE_SIZE); 860aed035abSart } 861aed035abSart #endif 862df930be7Sderaadt 863df930be7Sderaadt /* 864df930be7Sderaadt * Set up buffers, so they can be used to read disk labels. 865df930be7Sderaadt */ 866df930be7Sderaadt bufinit(); 867df930be7Sderaadt 868df930be7Sderaadt /* 869df930be7Sderaadt * Configure the system. 870df930be7Sderaadt */ 87141033391Sderaadt if (boothowto & RB_CONFIG) { 87241033391Sderaadt #ifdef BOOT_CONFIG 87341033391Sderaadt user_config(); 87441033391Sderaadt #else 87541033391Sderaadt printf("kernel does not support -c; continuing..\n"); 87641033391Sderaadt #endif 87741033391Sderaadt } 87850ce9ee0Sniklas 87950ce9ee0Sniklas /* 880aed035abSart * Set up the HWPCB so that it's safe to configure secondary 881aed035abSart * CPUs. 88250ce9ee0Sniklas */ 883aed035abSart hwrpb_primary_init(); 884aed035abSart } 885aed035abSart 886aed035abSart /* 887aed035abSart * Retrieve the platform name from the DSR. 888aed035abSart */ 889aed035abSart const char * 890aed035abSart alpha_dsr_sysname() 891aed035abSart { 892aed035abSart struct dsrdb *dsr; 893aed035abSart const char *sysname; 894aed035abSart 895aed035abSart /* 896aed035abSart * DSR does not exist on early HWRPB versions. 897aed035abSart */ 898aed035abSart if (hwrpb->rpb_version < HWRPB_DSRDB_MINVERS) 899aed035abSart return (NULL); 900aed035abSart 901aed035abSart dsr = (struct dsrdb *)(((caddr_t)hwrpb) + hwrpb->rpb_dsrdb_off); 902aed035abSart sysname = (const char *)((caddr_t)dsr + (dsr->dsr_sysname_off + 903aed035abSart sizeof(u_int64_t))); 904aed035abSart return (sysname); 905aed035abSart } 906aed035abSart 907aed035abSart /* 908aed035abSart * Lookup the system specified system variation in the provided table, 909aed035abSart * returning the model string on match. 910aed035abSart */ 911aed035abSart const char * 912aed035abSart alpha_variation_name(variation, avtp) 913aed035abSart u_int64_t variation; 914aed035abSart const struct alpha_variation_table *avtp; 915aed035abSart { 916aed035abSart int i; 917aed035abSart 918aed035abSart for (i = 0; avtp[i].avt_model != NULL; i++) 919aed035abSart if (avtp[i].avt_variation == variation) 920aed035abSart return (avtp[i].avt_model); 921aed035abSart return (NULL); 922aed035abSart } 923aed035abSart 924aed035abSart /* 925aed035abSart * Generate a default platform name based for unknown system variations. 926aed035abSart */ 927aed035abSart const char * 928aed035abSart alpha_unknown_sysname() 929aed035abSart { 930aed035abSart static char s[128]; /* safe size */ 931aed035abSart 932d5eb2d9aSderaadt snprintf(s, sizeof s, "%s family, unknown model variation 0x%lx", 933e86d96d5Smiod platform.family, (unsigned long)hwrpb->rpb_variation & SV_ST_MASK); 934aed035abSart return ((const char *)s); 935df930be7Sderaadt } 936df930be7Sderaadt 93750ce9ee0Sniklas void 938df930be7Sderaadt identifycpu() 939df930be7Sderaadt { 940aed035abSart char *s; 941b3cee53eSmartin int slen; 942df930be7Sderaadt 943df930be7Sderaadt /* 944df930be7Sderaadt * print out CPU identification information. 945df930be7Sderaadt */ 946aed035abSart printf("%s", cpu_model); 947aed035abSart for(s = cpu_model; *s; ++s) 948aed035abSart if(strncasecmp(s, "MHz", 3) == 0) 949aed035abSart goto skipMHz; 950e86d96d5Smiod printf(", %luMHz", (unsigned long)hwrpb->rpb_cc_freq / 1000000); 951aed035abSart skipMHz: 952b3cee53eSmartin /* fill in hw_serial if a serial number is known */ 953b3cee53eSmartin slen = strlen(hwrpb->rpb_ssn) + 1; 954b3cee53eSmartin if (slen > 1) { 955b3cee53eSmartin hw_serial = malloc(slen, M_SYSCTL, M_NOWAIT); 956b3cee53eSmartin if (hw_serial) 957b3cee53eSmartin strlcpy(hw_serial, (char *)hwrpb->rpb_ssn, slen); 958b3cee53eSmartin } 959b3cee53eSmartin 960aed035abSart printf("\n"); 961e86d96d5Smiod printf("%lu byte page size, %d processor%s.\n", 962e86d96d5Smiod (unsigned long)hwrpb->rpb_page_size, ncpusfound, 963e86d96d5Smiod ncpusfound == 1 ? "" : "s"); 964df930be7Sderaadt #if 0 965b3cee53eSmartin /* this is not particularly useful! */ 966df930be7Sderaadt printf("variation: 0x%lx, revision 0x%lx\n", 967df930be7Sderaadt hwrpb->rpb_variation, *(long *)hwrpb->rpb_revision); 968df930be7Sderaadt #endif 969df930be7Sderaadt } 970df930be7Sderaadt 971df930be7Sderaadt int waittime = -1; 972df930be7Sderaadt struct pcb dumppcb; 973df930be7Sderaadt 974ff261808Suebayasi __dead void 975ff261808Suebayasi boot(int howto) 976df930be7Sderaadt { 977aed035abSart #if defined(MULTIPROCESSOR) 97821c23d01Smiod u_long wait_mask; 97921c23d01Smiod int i; 980aed035abSart #endif 981aed035abSart 982df930be7Sderaadt if (cold) { 983c9ad5066Stom if ((howto & RB_USERREQ) == 0) 984df930be7Sderaadt howto |= RB_HALT; 985df930be7Sderaadt goto haltsys; 986df930be7Sderaadt } 987df930be7Sderaadt 98850ce9ee0Sniklas if ((boothowto & RB_HALT) != 0) 98950ce9ee0Sniklas howto |= RB_HALT; 99050ce9ee0Sniklas 991df930be7Sderaadt boothowto = howto; 992df930be7Sderaadt if ((howto & RB_NOSYNC) == 0 && waittime < 0) { 993df930be7Sderaadt waittime = 0; 994df930be7Sderaadt vfs_shutdown(); 99515be954bSuebayasi 9962417125dSmiod if ((howto & RB_TIMEBAD) == 0) { 997df930be7Sderaadt resettodr(); 9982417125dSmiod } else { 9992417125dSmiod printf("WARNING: not updating battery clock\n"); 10002417125dSmiod } 1001df930be7Sderaadt } 10027d9ca166Sderaadt if_downall(); 1003df930be7Sderaadt 1004c98e8b29Sderaadt uvm_shutdown(); 10059f43f03fSuebayasi splhigh(); 100680ce5a38Smpi cold = 1; 1007df930be7Sderaadt 100821c23d01Smiod #if defined(MULTIPROCESSOR) 100921c23d01Smiod /* 101021c23d01Smiod * Halt all other CPUs. 101121c23d01Smiod */ 101221c23d01Smiod wait_mask = (1UL << hwrpb->rpb_primary_cpu_id); 101321c23d01Smiod alpha_broadcast_ipi(ALPHA_IPI_HALT); 101421c23d01Smiod 101521c23d01Smiod /* Ensure any CPUs paused by DDB resume execution so they can halt */ 101621c23d01Smiod cpus_paused = 0; 101721c23d01Smiod 101821c23d01Smiod for (i = 0; i < 10000; i++) { 101921c23d01Smiod alpha_mb(); 102021c23d01Smiod if (cpus_running == wait_mask) 102121c23d01Smiod break; 102221c23d01Smiod delay(1000); 102321c23d01Smiod } 102421c23d01Smiod alpha_mb(); 102521c23d01Smiod if (cpus_running != wait_mask) 102621c23d01Smiod printf("WARNING: Unable to halt secondary CPUs (0x%lx)\n", 102721c23d01Smiod cpus_running); 102821c23d01Smiod #endif 102921c23d01Smiod 1030b19c85f4Suebayasi if ((howto & RB_DUMP) != 0) 1031df930be7Sderaadt dumpsys(); 1032df930be7Sderaadt 103334fbf6deSderaadt haltsys: 103496f419e1Skettenis config_suspend_all(DVACT_POWERDOWN); 1035df930be7Sderaadt 1036df930be7Sderaadt #ifdef BOOTKEY 1037b33b2f20Suebayasi printf("hit any key to %s...\n", 1038b33b2f20Suebayasi (howto & RB_HALT) != 0 ? "halt" : "reboot"); 1039aed035abSart cnpollc(1); /* for proper keyboard command handling */ 1040df930be7Sderaadt cngetc(); 1041aed035abSart cnpollc(0); 1042df930be7Sderaadt printf("\n"); 1043df930be7Sderaadt #endif 1044df930be7Sderaadt 1045aed035abSart /* Finally, powerdown/halt/reboot the system. */ 1046b33b2f20Suebayasi if ((howto & RB_POWERDOWN) != 0 && 1047aed035abSart platform.powerdown != NULL) { 1048aed035abSart (*platform.powerdown)(); 1049aed035abSart printf("WARNING: powerdown failed!\n"); 1050aed035abSart } 1051b33b2f20Suebayasi printf("%s\n\n", 1052b33b2f20Suebayasi (howto & RB_HALT) != 0 ? "halted." : "rebooting..."); 1053b33b2f20Suebayasi prom_halt((howto & RB_HALT) != 0); 1054b19c85f4Suebayasi for (;;) ; 1055df930be7Sderaadt /* NOTREACHED */ 1056df930be7Sderaadt } 1057df930be7Sderaadt 1058df930be7Sderaadt /* 1059df930be7Sderaadt * These variables are needed by /sbin/savecore 1060df930be7Sderaadt */ 1061df930be7Sderaadt u_long dumpmag = 0x8fca0101; /* magic number */ 1062df930be7Sderaadt int dumpsize = 0; /* pages */ 1063df930be7Sderaadt long dumplo = 0; /* blocks */ 1064df930be7Sderaadt 1065df930be7Sderaadt /* 106650ce9ee0Sniklas * cpu_dumpsize: calculate size of machine-dependent kernel core dump headers. 106750ce9ee0Sniklas */ 106850ce9ee0Sniklas int 106950ce9ee0Sniklas cpu_dumpsize() 107050ce9ee0Sniklas { 107150ce9ee0Sniklas int size; 107250ce9ee0Sniklas 1073aed035abSart size = ALIGN(sizeof(kcore_seg_t)) + ALIGN(sizeof(cpu_kcore_hdr_t)) + 1074aed035abSart ALIGN(mem_cluster_cnt * sizeof(phys_ram_seg_t)); 107550ce9ee0Sniklas if (roundup(size, dbtob(1)) != dbtob(1)) 107650ce9ee0Sniklas return -1; 107750ce9ee0Sniklas 107850ce9ee0Sniklas return (1); 107950ce9ee0Sniklas } 108050ce9ee0Sniklas 108150ce9ee0Sniklas /* 1082aed035abSart * cpu_dump_mempagecnt: calculate size of RAM (in pages) to be dumped. 1083aed035abSart */ 1084aed035abSart u_long 1085aed035abSart cpu_dump_mempagecnt() 1086aed035abSart { 1087aed035abSart u_long i, n; 1088aed035abSart 1089aed035abSart n = 0; 1090aed035abSart for (i = 0; i < mem_cluster_cnt; i++) 1091aed035abSart n += atop(mem_clusters[i].size); 1092aed035abSart return (n); 1093aed035abSart } 1094aed035abSart 1095aed035abSart /* 109650ce9ee0Sniklas * cpu_dump: dump machine-dependent kernel core dump headers. 109750ce9ee0Sniklas */ 109850ce9ee0Sniklas int 109950ce9ee0Sniklas cpu_dump() 110050ce9ee0Sniklas { 11011abdbfdeSderaadt int (*dump)(dev_t, daddr_t, caddr_t, size_t); 1102aed035abSart char buf[dbtob(1)]; 110350ce9ee0Sniklas kcore_seg_t *segp; 110450ce9ee0Sniklas cpu_kcore_hdr_t *cpuhdrp; 1105aed035abSart phys_ram_seg_t *memsegp; 1106aed035abSart int i; 110750ce9ee0Sniklas 110850ce9ee0Sniklas dump = bdevsw[major(dumpdev)].d_dump; 110950ce9ee0Sniklas 1110aed035abSart bzero(buf, sizeof buf); 111150ce9ee0Sniklas segp = (kcore_seg_t *)buf; 1112aed035abSart cpuhdrp = (cpu_kcore_hdr_t *)&buf[ALIGN(sizeof(*segp))]; 1113aed035abSart memsegp = (phys_ram_seg_t *)&buf[ALIGN(sizeof(*segp)) + 1114aed035abSart ALIGN(sizeof(*cpuhdrp))]; 111550ce9ee0Sniklas 111650ce9ee0Sniklas /* 111750ce9ee0Sniklas * Generate a segment header. 111850ce9ee0Sniklas */ 111950ce9ee0Sniklas CORE_SETMAGIC(*segp, KCORE_MAGIC, MID_MACHINE, CORE_CPU); 112050ce9ee0Sniklas segp->c_size = dbtob(1) - ALIGN(sizeof(*segp)); 112150ce9ee0Sniklas 112250ce9ee0Sniklas /* 1123aed035abSart * Add the machine-dependent header info. 112450ce9ee0Sniklas */ 1125aed035abSart cpuhdrp->lev1map_pa = ALPHA_K0SEG_TO_PHYS((vaddr_t)kernel_lev1map); 112650ce9ee0Sniklas cpuhdrp->page_size = PAGE_SIZE; 1127aed035abSart cpuhdrp->nmemsegs = mem_cluster_cnt; 1128aed035abSart 1129aed035abSart /* 1130aed035abSart * Fill in the memory segment descriptors. 1131aed035abSart */ 1132aed035abSart for (i = 0; i < mem_cluster_cnt; i++) { 1133aed035abSart memsegp[i].start = mem_clusters[i].start; 1134aed035abSart memsegp[i].size = mem_clusters[i].size & ~PAGE_MASK; 1135aed035abSart } 113650ce9ee0Sniklas 113750ce9ee0Sniklas return (dump(dumpdev, dumplo, (caddr_t)buf, dbtob(1))); 113850ce9ee0Sniklas } 113950ce9ee0Sniklas 114050ce9ee0Sniklas /* 1141aed035abSart * This is called by main to set dumplo and dumpsize. 1142194dd68bSbrad * Dumps always skip the first PAGE_SIZE of disk space 1143df930be7Sderaadt * in case there might be a disk label stored there. 1144df930be7Sderaadt * If there is extra space, put dump at the end to 1145df930be7Sderaadt * reduce the chance that swapping trashes it. 1146df930be7Sderaadt */ 1147df930be7Sderaadt void 1148e17d3b39Sderaadt dumpconf(void) 1149df930be7Sderaadt { 115050ce9ee0Sniklas int nblks, dumpblks; /* size of dump area */ 1151df930be7Sderaadt 1152e17d3b39Sderaadt if (dumpdev == NODEV || 1153e17d3b39Sderaadt (nblks = (bdevsw[major(dumpdev)].d_psize)(dumpdev)) == 0) 1154e17d3b39Sderaadt return; 1155df930be7Sderaadt if (nblks <= ctod(1)) 1156e17d3b39Sderaadt return; 115750ce9ee0Sniklas 115850ce9ee0Sniklas dumpblks = cpu_dumpsize(); 115950ce9ee0Sniklas if (dumpblks < 0) 1160e17d3b39Sderaadt return; 1161aed035abSart dumpblks += ctod(cpu_dump_mempagecnt()); 116250ce9ee0Sniklas 116350ce9ee0Sniklas /* If dump won't fit (incl. room for possible label), punt. */ 116450ce9ee0Sniklas if (dumpblks > (nblks - ctod(1))) 1165e17d3b39Sderaadt return; 116650ce9ee0Sniklas 116750ce9ee0Sniklas /* Put dump at end of partition */ 116850ce9ee0Sniklas dumplo = nblks - dumpblks; 116950ce9ee0Sniklas 117050ce9ee0Sniklas /* dumpsize is in page units, and doesn't include headers. */ 1171aed035abSart dumpsize = cpu_dump_mempagecnt(); 1172df930be7Sderaadt } 1173df930be7Sderaadt 1174df930be7Sderaadt /* 117550ce9ee0Sniklas * Dump the kernel's image to the swap partition. 1176df930be7Sderaadt */ 1177194dd68bSbrad #define BYTES_PER_DUMP PAGE_SIZE 117850ce9ee0Sniklas 1179df930be7Sderaadt void 1180df930be7Sderaadt dumpsys() 1181df930be7Sderaadt { 1182aed035abSart u_long totalbytesleft, bytes, i, n, memcl; 1183aed035abSart u_long maddr; 1184aed035abSart int psize; 11851abdbfdeSderaadt daddr_t blkno; 11861abdbfdeSderaadt int (*dump)(dev_t, daddr_t, caddr_t, size_t); 118750ce9ee0Sniklas int error; 1188067cbd75Sderaadt extern int msgbufmapped; 1189df930be7Sderaadt 119050ce9ee0Sniklas /* Save registers. */ 119150ce9ee0Sniklas savectx(&dumppcb); 119250ce9ee0Sniklas 119350ce9ee0Sniklas msgbufmapped = 0; /* don't record dump msgs in msgbuf */ 1194df930be7Sderaadt if (dumpdev == NODEV) 1195df930be7Sderaadt return; 119650ce9ee0Sniklas 119750ce9ee0Sniklas /* 119850ce9ee0Sniklas * For dumps during autoconfiguration, 119950ce9ee0Sniklas * if dump device has already configured... 120050ce9ee0Sniklas */ 1201df930be7Sderaadt if (dumpsize == 0) 120250ce9ee0Sniklas dumpconf(); 120350ce9ee0Sniklas if (dumplo <= 0) { 1204aed035abSart printf("\ndump to dev %u,%u not possible\n", major(dumpdev), 1205aed035abSart minor(dumpdev)); 1206df930be7Sderaadt return; 1207df930be7Sderaadt } 1208aed035abSart printf("\ndumping to dev %u,%u offset %ld\n", major(dumpdev), 1209aed035abSart minor(dumpdev), dumplo); 1210df930be7Sderaadt 121150ce9ee0Sniklas psize = (*bdevsw[major(dumpdev)].d_psize)(dumpdev); 1212df930be7Sderaadt printf("dump "); 121350ce9ee0Sniklas if (psize == -1) { 121450ce9ee0Sniklas printf("area unavailable\n"); 121550ce9ee0Sniklas return; 121650ce9ee0Sniklas } 121750ce9ee0Sniklas 121850ce9ee0Sniklas /* XXX should purge all outstanding keystrokes. */ 121950ce9ee0Sniklas 122050ce9ee0Sniklas if ((error = cpu_dump()) != 0) 122150ce9ee0Sniklas goto err; 122250ce9ee0Sniklas 1223aed035abSart totalbytesleft = ptoa(cpu_dump_mempagecnt()); 122450ce9ee0Sniklas blkno = dumplo + cpu_dumpsize(); 122550ce9ee0Sniklas dump = bdevsw[major(dumpdev)].d_dump; 122650ce9ee0Sniklas error = 0; 1227aed035abSart 1228aed035abSart for (memcl = 0; memcl < mem_cluster_cnt; memcl++) { 1229aed035abSart maddr = mem_clusters[memcl].start; 1230aed035abSart bytes = mem_clusters[memcl].size & ~PAGE_MASK; 1231aed035abSart 1232aed035abSart for (i = 0; i < bytes; i += n, totalbytesleft -= n) { 123350ce9ee0Sniklas 123450ce9ee0Sniklas /* Print out how many MBs we to go. */ 1235aed035abSart if ((totalbytesleft % (1024*1024)) == 0) 1236aed035abSart printf("%ld ", totalbytesleft / (1024 * 1024)); 123750ce9ee0Sniklas 123850ce9ee0Sniklas /* Limit size for next transfer. */ 1239aed035abSart n = bytes - i; 124050ce9ee0Sniklas if (n > BYTES_PER_DUMP) 124150ce9ee0Sniklas n = BYTES_PER_DUMP; 124250ce9ee0Sniklas 124350ce9ee0Sniklas error = (*dump)(dumpdev, blkno, 124450ce9ee0Sniklas (caddr_t)ALPHA_PHYS_TO_K0SEG(maddr), n); 124550ce9ee0Sniklas if (error) 1246aed035abSart goto err; 124750ce9ee0Sniklas maddr += n; 124850ce9ee0Sniklas blkno += btodb(n); /* XXX? */ 124950ce9ee0Sniklas 125050ce9ee0Sniklas /* XXX should look for keystrokes, to cancel. */ 125150ce9ee0Sniklas } 1252aed035abSart } 125350ce9ee0Sniklas 125450ce9ee0Sniklas err: 125550ce9ee0Sniklas switch (error) { 1256a37778bcSderaadt #ifdef DEBUG 1257df930be7Sderaadt case ENXIO: 1258df930be7Sderaadt printf("device bad\n"); 1259df930be7Sderaadt break; 1260df930be7Sderaadt 1261df930be7Sderaadt case EFAULT: 1262df930be7Sderaadt printf("device not ready\n"); 1263df930be7Sderaadt break; 1264df930be7Sderaadt 1265df930be7Sderaadt case EINVAL: 1266df930be7Sderaadt printf("area improper\n"); 1267df930be7Sderaadt break; 1268df930be7Sderaadt 1269df930be7Sderaadt case EIO: 1270df930be7Sderaadt printf("i/o error\n"); 1271df930be7Sderaadt break; 1272df930be7Sderaadt 1273df930be7Sderaadt case EINTR: 1274df930be7Sderaadt printf("aborted from console\n"); 1275df930be7Sderaadt break; 1276a37778bcSderaadt #endif /* DEBUG */ 127750ce9ee0Sniklas case 0: 1278df930be7Sderaadt printf("succeeded\n"); 1279df930be7Sderaadt break; 128050ce9ee0Sniklas 128150ce9ee0Sniklas default: 128250ce9ee0Sniklas printf("error %d\n", error); 128350ce9ee0Sniklas break; 1284df930be7Sderaadt } 1285df930be7Sderaadt printf("\n\n"); 1286df930be7Sderaadt delay(1000); 1287df930be7Sderaadt } 1288df930be7Sderaadt 1289df930be7Sderaadt void 1290df930be7Sderaadt frametoreg(framep, regp) 1291df930be7Sderaadt struct trapframe *framep; 1292df930be7Sderaadt struct reg *regp; 1293df930be7Sderaadt { 1294df930be7Sderaadt 1295df930be7Sderaadt regp->r_regs[R_V0] = framep->tf_regs[FRAME_V0]; 1296df930be7Sderaadt regp->r_regs[R_T0] = framep->tf_regs[FRAME_T0]; 1297df930be7Sderaadt regp->r_regs[R_T1] = framep->tf_regs[FRAME_T1]; 1298df930be7Sderaadt regp->r_regs[R_T2] = framep->tf_regs[FRAME_T2]; 1299df930be7Sderaadt regp->r_regs[R_T3] = framep->tf_regs[FRAME_T3]; 1300df930be7Sderaadt regp->r_regs[R_T4] = framep->tf_regs[FRAME_T4]; 1301df930be7Sderaadt regp->r_regs[R_T5] = framep->tf_regs[FRAME_T5]; 1302df930be7Sderaadt regp->r_regs[R_T6] = framep->tf_regs[FRAME_T6]; 1303df930be7Sderaadt regp->r_regs[R_T7] = framep->tf_regs[FRAME_T7]; 1304df930be7Sderaadt regp->r_regs[R_S0] = framep->tf_regs[FRAME_S0]; 1305df930be7Sderaadt regp->r_regs[R_S1] = framep->tf_regs[FRAME_S1]; 1306df930be7Sderaadt regp->r_regs[R_S2] = framep->tf_regs[FRAME_S2]; 1307df930be7Sderaadt regp->r_regs[R_S3] = framep->tf_regs[FRAME_S3]; 1308df930be7Sderaadt regp->r_regs[R_S4] = framep->tf_regs[FRAME_S4]; 1309df930be7Sderaadt regp->r_regs[R_S5] = framep->tf_regs[FRAME_S5]; 1310df930be7Sderaadt regp->r_regs[R_S6] = framep->tf_regs[FRAME_S6]; 131150ce9ee0Sniklas regp->r_regs[R_A0] = framep->tf_regs[FRAME_A0]; 131250ce9ee0Sniklas regp->r_regs[R_A1] = framep->tf_regs[FRAME_A1]; 131350ce9ee0Sniklas regp->r_regs[R_A2] = framep->tf_regs[FRAME_A2]; 1314df930be7Sderaadt regp->r_regs[R_A3] = framep->tf_regs[FRAME_A3]; 1315df930be7Sderaadt regp->r_regs[R_A4] = framep->tf_regs[FRAME_A4]; 1316df930be7Sderaadt regp->r_regs[R_A5] = framep->tf_regs[FRAME_A5]; 1317df930be7Sderaadt regp->r_regs[R_T8] = framep->tf_regs[FRAME_T8]; 1318df930be7Sderaadt regp->r_regs[R_T9] = framep->tf_regs[FRAME_T9]; 1319df930be7Sderaadt regp->r_regs[R_T10] = framep->tf_regs[FRAME_T10]; 1320df930be7Sderaadt regp->r_regs[R_T11] = framep->tf_regs[FRAME_T11]; 1321df930be7Sderaadt regp->r_regs[R_RA] = framep->tf_regs[FRAME_RA]; 1322df930be7Sderaadt regp->r_regs[R_T12] = framep->tf_regs[FRAME_T12]; 1323df930be7Sderaadt regp->r_regs[R_AT] = framep->tf_regs[FRAME_AT]; 132450ce9ee0Sniklas regp->r_regs[R_GP] = framep->tf_regs[FRAME_GP]; 132550ce9ee0Sniklas /* regp->r_regs[R_SP] = framep->tf_regs[FRAME_SP]; XXX */ 1326df930be7Sderaadt regp->r_regs[R_ZERO] = 0; 1327df930be7Sderaadt } 1328df930be7Sderaadt 1329df930be7Sderaadt void 1330df930be7Sderaadt regtoframe(regp, framep) 1331df930be7Sderaadt struct reg *regp; 1332df930be7Sderaadt struct trapframe *framep; 1333df930be7Sderaadt { 1334df930be7Sderaadt 1335df930be7Sderaadt framep->tf_regs[FRAME_V0] = regp->r_regs[R_V0]; 1336df930be7Sderaadt framep->tf_regs[FRAME_T0] = regp->r_regs[R_T0]; 1337df930be7Sderaadt framep->tf_regs[FRAME_T1] = regp->r_regs[R_T1]; 1338df930be7Sderaadt framep->tf_regs[FRAME_T2] = regp->r_regs[R_T2]; 1339df930be7Sderaadt framep->tf_regs[FRAME_T3] = regp->r_regs[R_T3]; 1340df930be7Sderaadt framep->tf_regs[FRAME_T4] = regp->r_regs[R_T4]; 1341df930be7Sderaadt framep->tf_regs[FRAME_T5] = regp->r_regs[R_T5]; 1342df930be7Sderaadt framep->tf_regs[FRAME_T6] = regp->r_regs[R_T6]; 1343df930be7Sderaadt framep->tf_regs[FRAME_T7] = regp->r_regs[R_T7]; 1344df930be7Sderaadt framep->tf_regs[FRAME_S0] = regp->r_regs[R_S0]; 1345df930be7Sderaadt framep->tf_regs[FRAME_S1] = regp->r_regs[R_S1]; 1346df930be7Sderaadt framep->tf_regs[FRAME_S2] = regp->r_regs[R_S2]; 1347df930be7Sderaadt framep->tf_regs[FRAME_S3] = regp->r_regs[R_S3]; 1348df930be7Sderaadt framep->tf_regs[FRAME_S4] = regp->r_regs[R_S4]; 1349df930be7Sderaadt framep->tf_regs[FRAME_S5] = regp->r_regs[R_S5]; 1350df930be7Sderaadt framep->tf_regs[FRAME_S6] = regp->r_regs[R_S6]; 135150ce9ee0Sniklas framep->tf_regs[FRAME_A0] = regp->r_regs[R_A0]; 135250ce9ee0Sniklas framep->tf_regs[FRAME_A1] = regp->r_regs[R_A1]; 135350ce9ee0Sniklas framep->tf_regs[FRAME_A2] = regp->r_regs[R_A2]; 1354df930be7Sderaadt framep->tf_regs[FRAME_A3] = regp->r_regs[R_A3]; 1355df930be7Sderaadt framep->tf_regs[FRAME_A4] = regp->r_regs[R_A4]; 1356df930be7Sderaadt framep->tf_regs[FRAME_A5] = regp->r_regs[R_A5]; 1357df930be7Sderaadt framep->tf_regs[FRAME_T8] = regp->r_regs[R_T8]; 1358df930be7Sderaadt framep->tf_regs[FRAME_T9] = regp->r_regs[R_T9]; 1359df930be7Sderaadt framep->tf_regs[FRAME_T10] = regp->r_regs[R_T10]; 1360df930be7Sderaadt framep->tf_regs[FRAME_T11] = regp->r_regs[R_T11]; 1361df930be7Sderaadt framep->tf_regs[FRAME_RA] = regp->r_regs[R_RA]; 1362df930be7Sderaadt framep->tf_regs[FRAME_T12] = regp->r_regs[R_T12]; 1363df930be7Sderaadt framep->tf_regs[FRAME_AT] = regp->r_regs[R_AT]; 136450ce9ee0Sniklas framep->tf_regs[FRAME_GP] = regp->r_regs[R_GP]; 136550ce9ee0Sniklas /* framep->tf_regs[FRAME_SP] = regp->r_regs[R_SP]; XXX */ 1366df930be7Sderaadt /* ??? = regp->r_regs[R_ZERO]; */ 1367df930be7Sderaadt } 1368df930be7Sderaadt 1369df930be7Sderaadt void 1370df930be7Sderaadt printregs(regp) 1371df930be7Sderaadt struct reg *regp; 1372df930be7Sderaadt { 1373df930be7Sderaadt int i; 1374df930be7Sderaadt 1375df930be7Sderaadt for (i = 0; i < 32; i++) 1376df930be7Sderaadt printf("R%d:\t0x%016lx%s", i, regp->r_regs[i], 1377df930be7Sderaadt i & 1 ? "\n" : "\t"); 1378df930be7Sderaadt } 1379df930be7Sderaadt 1380df930be7Sderaadt void 1381df930be7Sderaadt regdump(framep) 1382df930be7Sderaadt struct trapframe *framep; 1383df930be7Sderaadt { 1384df930be7Sderaadt struct reg reg; 1385df930be7Sderaadt 1386df930be7Sderaadt frametoreg(framep, ®); 138750ce9ee0Sniklas reg.r_regs[R_SP] = alpha_pal_rdusp(); 138850ce9ee0Sniklas 1389df930be7Sderaadt printf("REGISTERS:\n"); 1390df930be7Sderaadt printregs(®); 1391df930be7Sderaadt } 1392df930be7Sderaadt 1393df930be7Sderaadt #ifdef DEBUG 1394df930be7Sderaadt int sigdebug = 0; 139572830333Sokan pid_t sigpid = 0; 1396df930be7Sderaadt #define SDB_FOLLOW 0x01 1397df930be7Sderaadt #define SDB_KSTACK 0x02 1398df930be7Sderaadt #endif 1399df930be7Sderaadt 1400df930be7Sderaadt /* 1401df930be7Sderaadt * Send an interrupt to process. 1402df930be7Sderaadt */ 1403df930be7Sderaadt void 1404*e99873aaSderaadt sendsig(sig_t catcher, int sig, int mask, u_long code, int type, 1405*e99873aaSderaadt union sigval val) 1406df930be7Sderaadt { 1407df930be7Sderaadt struct proc *p = curproc; 1408*e99873aaSderaadt struct sigcontext ksc, *scp; 1409e7e08221Smiod struct fpreg *fpregs = (struct fpreg *)&ksc.sc_fpregs; 1410df930be7Sderaadt struct trapframe *frame; 1411533be81aSguenther struct sigacts *psp = p->p_p->ps_sigacts; 14121eaa59e7Sguenther unsigned long oldsp; 14131eaa59e7Sguenther int fsize, rndfsize, kscsize; 14142bf9c155Sderaadt siginfo_t *sip, ksi; 1415df930be7Sderaadt 14161eaa59e7Sguenther oldsp = alpha_pal_rdusp(); 1417df930be7Sderaadt frame = p->p_md.md_tf; 1418df930be7Sderaadt fsize = sizeof ksc; 1419df930be7Sderaadt rndfsize = ((fsize + 15) / 16) * 16; 14202bf9c155Sderaadt kscsize = rndfsize; 14212bf9c155Sderaadt if (psp->ps_siginfo & sigmask(sig)) { 14222bf9c155Sderaadt fsize += sizeof ksi; 14232bf9c155Sderaadt rndfsize = ((fsize + 15) / 16) * 16; 14242bf9c155Sderaadt } 142574652a67Sniklas 1426df930be7Sderaadt /* 14276e870393Smiod * Allocate space for the signal handler context. 1428df930be7Sderaadt */ 14291eaa59e7Sguenther if ((p->p_sigstk.ss_flags & SS_DISABLE) == 0 && 14301eaa59e7Sguenther !sigonstack(oldsp) && (psp->ps_sigonstack & sigmask(sig))) 14312725daddSguenther scp = (struct sigcontext *)(p->p_sigstk.ss_sp + 14322725daddSguenther p->p_sigstk.ss_size - rndfsize); 14331eaa59e7Sguenther else 14341eaa59e7Sguenther scp = (struct sigcontext *)(oldsp - rndfsize); 1435df930be7Sderaadt 1436df930be7Sderaadt /* 1437df930be7Sderaadt * Build the signal context to be used by sigreturn. 1438df930be7Sderaadt */ 14391eaa59e7Sguenther bzero(&ksc, sizeof(ksc)); 1440df930be7Sderaadt ksc.sc_mask = mask; 144150ce9ee0Sniklas ksc.sc_pc = frame->tf_regs[FRAME_PC]; 144250ce9ee0Sniklas ksc.sc_ps = frame->tf_regs[FRAME_PS]; 1443df930be7Sderaadt 1444df930be7Sderaadt /* copy the registers. */ 1445df930be7Sderaadt frametoreg(frame, (struct reg *)ksc.sc_regs); 14461eaa59e7Sguenther ksc.sc_regs[R_SP] = oldsp; 1447df930be7Sderaadt 1448df930be7Sderaadt /* save the floating-point state, if necessary, then copy it. */ 1449433075b6Spvalchev if (p->p_addr->u_pcb.pcb_fpcpu != NULL) 1450433075b6Spvalchev fpusave_proc(p, 1); 1451df930be7Sderaadt ksc.sc_ownedfp = p->p_md.md_flags & MDP_FPUSED; 1452e7e08221Smiod memcpy(/*ksc.sc_*/fpregs, &p->p_addr->u_pcb.pcb_fp, 1453df930be7Sderaadt sizeof(struct fpreg)); 1454433075b6Spvalchev #ifndef NO_IEEE 1455433075b6Spvalchev ksc.sc_fp_control = alpha_read_fp_c(p); 1456433075b6Spvalchev #else 1457433075b6Spvalchev ksc.sc_fp_control = 0; 1458433075b6Spvalchev #endif 1459433075b6Spvalchev memset(ksc.sc_reserved, 0, sizeof ksc.sc_reserved); /* XXX */ 1460433075b6Spvalchev memset(ksc.sc_xxx, 0, sizeof ksc.sc_xxx); /* XXX */ 1461df930be7Sderaadt 14622bf9c155Sderaadt if (psp->ps_siginfo & sigmask(sig)) { 14632bf9c155Sderaadt initsiginfo(&ksi, sig, code, type, val); 14642bf9c155Sderaadt sip = (void *)scp + kscsize; 1465679ebc41Smiod if (copyout((caddr_t)&ksi, (caddr_t)sip, fsize - kscsize) != 0) 1466679ebc41Smiod goto trash; 1467aa540fb8Sart } else 1468aa540fb8Sart sip = NULL; 14692bf9c155Sderaadt 14707730d1d9Sderaadt ksc.sc_cookie = (long)scp ^ p->p_p->ps_sigcookie; 1471679ebc41Smiod if (copyout((caddr_t)&ksc, (caddr_t)scp, kscsize) != 0) { 1472679ebc41Smiod trash: 1473679ebc41Smiod /* 1474679ebc41Smiod * Process has trashed its stack; give it an illegal 1475679ebc41Smiod * instruction to halt it in its tracks. 1476679ebc41Smiod */ 147786fd84b3Smiod sigexit(p, SIGILL); 147886fd84b3Smiod /* NOTREACHED */ 1479679ebc41Smiod } 1480df930be7Sderaadt 1481df930be7Sderaadt /* 1482df930be7Sderaadt * Set up the registers to return to sigcode. 1483df930be7Sderaadt */ 14848f76f5adSguenther frame->tf_regs[FRAME_PC] = p->p_p->ps_sigcode; 148550ce9ee0Sniklas frame->tf_regs[FRAME_A0] = sig; 1486aa540fb8Sart frame->tf_regs[FRAME_A1] = (u_int64_t)sip; 148750ce9ee0Sniklas frame->tf_regs[FRAME_A2] = (u_int64_t)scp; 1488df930be7Sderaadt frame->tf_regs[FRAME_T12] = (u_int64_t)catcher; /* t12 is pv */ 148950ce9ee0Sniklas alpha_pal_wrusp((unsigned long)scp); 1490df930be7Sderaadt } 1491df930be7Sderaadt 1492df930be7Sderaadt /* 1493df930be7Sderaadt * System call to cleanup state after a signal 1494df930be7Sderaadt * has been taken. Reset signal mask and 1495df930be7Sderaadt * stack state from context left by sendsig (above). 1496df930be7Sderaadt * Return to previous pc and psl as specified by 1497df930be7Sderaadt * context left by sendsig. Check carefully to 1498df930be7Sderaadt * make sure that the user has not modified the 1499125cd19fSderaadt * psl to gain improper privileges or to cause 1500df930be7Sderaadt * a machine fault. 1501df930be7Sderaadt */ 1502df930be7Sderaadt /* ARGSUSED */ 1503df930be7Sderaadt int 1504*e99873aaSderaadt sys_sigreturn(struct proc *p, void *v, register_t *retval) 1505df930be7Sderaadt { 1506df930be7Sderaadt struct sys_sigreturn_args /* { 1507df930be7Sderaadt syscallarg(struct sigcontext *) sigcntxp; 1508df930be7Sderaadt } */ *uap = v; 1509*e99873aaSderaadt struct sigcontext ksc, *scp = SCARG(uap, sigcntxp); 1510e7e08221Smiod struct fpreg *fpregs = (struct fpreg *)&ksc.sc_fpregs; 1511aa540fb8Sart int error; 1512df930be7Sderaadt 15137730d1d9Sderaadt if (PROC_PC(p) != p->p_p->ps_sigcoderet) { 15147730d1d9Sderaadt sigexit(p, SIGILL); 15157730d1d9Sderaadt return (EPERM); 15167730d1d9Sderaadt } 15177730d1d9Sderaadt 15187730d1d9Sderaadt if ((error = copyin(scp, &ksc, sizeof(ksc))) != 0) 1519aa540fb8Sart return (error); 1520df930be7Sderaadt 15217730d1d9Sderaadt if (ksc.sc_cookie != ((long)scp ^ p->p_p->ps_sigcookie)) { 15227730d1d9Sderaadt sigexit(p, SIGILL); 15237730d1d9Sderaadt return (EFAULT); 15247730d1d9Sderaadt } 15257730d1d9Sderaadt 15264a064f11Sderaadt /* Prevent reuse of the sigcontext cookie */ 15274a064f11Sderaadt ksc.sc_cookie = 0; 15284a064f11Sderaadt (void)copyout(&ksc.sc_cookie, (caddr_t)scp + 1529*e99873aaSderaadt offsetof(struct sigcontext, sc_cookie), sizeof (ksc.sc_cookie)); 15304a064f11Sderaadt 1531df930be7Sderaadt /* 1532df930be7Sderaadt * Restore the user-supplied information 1533df930be7Sderaadt */ 1534df930be7Sderaadt p->p_sigmask = ksc.sc_mask &~ sigcantmask; 1535df930be7Sderaadt 153650ce9ee0Sniklas p->p_md.md_tf->tf_regs[FRAME_PC] = ksc.sc_pc; 153750ce9ee0Sniklas p->p_md.md_tf->tf_regs[FRAME_PS] = 153850ce9ee0Sniklas (ksc.sc_ps | ALPHA_PSL_USERSET) & ~ALPHA_PSL_USERCLR; 1539df930be7Sderaadt 1540df930be7Sderaadt regtoframe((struct reg *)ksc.sc_regs, p->p_md.md_tf); 154150ce9ee0Sniklas alpha_pal_wrusp(ksc.sc_regs[R_SP]); 1542df930be7Sderaadt 1543df930be7Sderaadt /* XXX ksc.sc_ownedfp ? */ 1544433075b6Spvalchev if (p->p_addr->u_pcb.pcb_fpcpu != NULL) 1545433075b6Spvalchev fpusave_proc(p, 0); 1546e7e08221Smiod memcpy(&p->p_addr->u_pcb.pcb_fp, /*ksc.sc_*/fpregs, 1547df930be7Sderaadt sizeof(struct fpreg)); 1548433075b6Spvalchev #ifndef NO_IEEE 1549433075b6Spvalchev p->p_addr->u_pcb.pcb_fp.fpr_cr = ksc.sc_fpcr; 1550433075b6Spvalchev p->p_md.md_flags = ksc.sc_fp_control & MDP_FP_C; 1551433075b6Spvalchev #endif 1552df930be7Sderaadt return (EJUSTRETURN); 1553df930be7Sderaadt } 1554df930be7Sderaadt 1555df930be7Sderaadt /* 1556df930be7Sderaadt * machine dependent system variables. 1557df930be7Sderaadt */ 155850ce9ee0Sniklas int 1559df930be7Sderaadt cpu_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 1560df930be7Sderaadt int *name; 1561df930be7Sderaadt u_int namelen; 1562df930be7Sderaadt void *oldp; 1563df930be7Sderaadt size_t *oldlenp; 1564df930be7Sderaadt void *newp; 1565df930be7Sderaadt size_t newlen; 1566df930be7Sderaadt struct proc *p; 1567df930be7Sderaadt { 1568df930be7Sderaadt dev_t consdev; 1569a072164aSmiod #if NIOASIC > 0 1570a072164aSmiod int oldval, ret; 1571a072164aSmiod #endif 1572df930be7Sderaadt 157345e5a1a0Sart if (name[0] != CPU_CHIPSET && namelen != 1) 1574df930be7Sderaadt return (ENOTDIR); /* overloaded */ 1575df930be7Sderaadt 1576df930be7Sderaadt switch (name[0]) { 1577df930be7Sderaadt case CPU_CONSDEV: 1578df930be7Sderaadt if (cn_tab != NULL) 1579df930be7Sderaadt consdev = cn_tab->cn_dev; 1580df930be7Sderaadt else 1581df930be7Sderaadt consdev = NODEV; 1582df930be7Sderaadt return (sysctl_rdstruct(oldp, oldlenp, newp, &consdev, 1583df930be7Sderaadt sizeof consdev)); 1584417eba8cSderaadt 1585a37778bcSderaadt #ifndef SMALL_KERNEL 158650ce9ee0Sniklas case CPU_UNALIGNED_PRINT: 158750ce9ee0Sniklas return (sysctl_int(oldp, oldlenp, newp, newlen, 158850ce9ee0Sniklas &alpha_unaligned_print)); 158950ce9ee0Sniklas 159050ce9ee0Sniklas case CPU_UNALIGNED_FIX: 159150ce9ee0Sniklas return (sysctl_int(oldp, oldlenp, newp, newlen, 159250ce9ee0Sniklas &alpha_unaligned_fix)); 159350ce9ee0Sniklas 159450ce9ee0Sniklas case CPU_UNALIGNED_SIGBUS: 159550ce9ee0Sniklas return (sysctl_int(oldp, oldlenp, newp, newlen, 159650ce9ee0Sniklas &alpha_unaligned_sigbus)); 159750ce9ee0Sniklas 15983a630e3fSniklas case CPU_BOOTED_KERNEL: 1599aed035abSart return (sysctl_rdstring(oldp, oldlenp, newp, 1600aed035abSart bootinfo.booted_kernel)); 16013a630e3fSniklas 160245e5a1a0Sart case CPU_CHIPSET: 160345e5a1a0Sart return (alpha_sysctl_chipset(name + 1, namelen - 1, oldp, 160445e5a1a0Sart oldlenp)); 1605a37778bcSderaadt #endif /* SMALL_KERNEL */ 1606433075b6Spvalchev 1607433075b6Spvalchev #ifndef NO_IEEE 1608433075b6Spvalchev case CPU_FP_SYNC_COMPLETE: 1609433075b6Spvalchev return (sysctl_int(oldp, oldlenp, newp, newlen, 1610433075b6Spvalchev &alpha_fp_sync_complete)); 1611433075b6Spvalchev #endif 161227626149Smatthieu case CPU_ALLOWAPERTURE: 161327626149Smatthieu #ifdef APERTURE 161427626149Smatthieu if (securelevel > 0) 16151546ceefSderaadt return (sysctl_int_lower(oldp, oldlenp, newp, newlen, 16161546ceefSderaadt &allowaperture)); 161727626149Smatthieu else 161827626149Smatthieu return (sysctl_int(oldp, oldlenp, newp, newlen, 161927626149Smatthieu &allowaperture)); 162027626149Smatthieu #else 162127626149Smatthieu return (sysctl_rdint(oldp, oldlenp, newp, 0)); 162227626149Smatthieu #endif 1623a072164aSmiod #if NIOASIC > 0 1624a072164aSmiod case CPU_LED_BLINK: 1625a072164aSmiod oldval = alpha_led_blink; 1626a072164aSmiod ret = sysctl_int(oldp, oldlenp, newp, newlen, &alpha_led_blink); 1627a072164aSmiod if (oldval != alpha_led_blink) 1628a072164aSmiod ioasic_led_blink(NULL); 1629a072164aSmiod return (ret); 1630a072164aSmiod #endif 1631df930be7Sderaadt default: 1632df930be7Sderaadt return (EOPNOTSUPP); 1633df930be7Sderaadt } 1634df930be7Sderaadt /* NOTREACHED */ 1635df930be7Sderaadt } 1636df930be7Sderaadt 1637df930be7Sderaadt /* 1638df930be7Sderaadt * Set registers on exec. 1639df930be7Sderaadt */ 1640df930be7Sderaadt void 1641df930be7Sderaadt setregs(p, pack, stack, retval) 1642df930be7Sderaadt register struct proc *p; 1643df930be7Sderaadt struct exec_package *pack; 1644df930be7Sderaadt u_long stack; 1645df930be7Sderaadt register_t *retval; 1646df930be7Sderaadt { 1647df930be7Sderaadt struct trapframe *tfp = p->p_md.md_tf; 16483a630e3fSniklas #ifdef DEBUG 16493a630e3fSniklas int i; 16503a630e3fSniklas #endif 1651df930be7Sderaadt 1652df930be7Sderaadt #ifdef DEBUG 165350ce9ee0Sniklas /* 165450ce9ee0Sniklas * Crash and dump, if the user requested it. 165550ce9ee0Sniklas */ 165650ce9ee0Sniklas if (boothowto & RB_DUMP) 165750ce9ee0Sniklas panic("crash requested by boot flags"); 165850ce9ee0Sniklas #endif 165950ce9ee0Sniklas 166050ce9ee0Sniklas #ifdef DEBUG 166150ce9ee0Sniklas for (i = 0; i < FRAME_SIZE; i++) 1662df930be7Sderaadt tfp->tf_regs[i] = 0xbabefacedeadbeef; 16636334622bSguenther tfp->tf_regs[FRAME_A1] = 0; 1664df930be7Sderaadt #else 166550ce9ee0Sniklas bzero(tfp->tf_regs, FRAME_SIZE * sizeof tfp->tf_regs[0]); 1666df930be7Sderaadt #endif 1667df930be7Sderaadt bzero(&p->p_addr->u_pcb.pcb_fp, sizeof p->p_addr->u_pcb.pcb_fp); 166850ce9ee0Sniklas alpha_pal_wrusp(stack); 166950ce9ee0Sniklas tfp->tf_regs[FRAME_PS] = ALPHA_PSL_USERSET; 167050ce9ee0Sniklas tfp->tf_regs[FRAME_PC] = pack->ep_entry & ~3; 1671df930be7Sderaadt 167250ce9ee0Sniklas tfp->tf_regs[FRAME_A0] = stack; 167350ce9ee0Sniklas /* a1 and a2 already zeroed */ 167450ce9ee0Sniklas tfp->tf_regs[FRAME_T12] = tfp->tf_regs[FRAME_PC]; /* a.k.a. PV */ 167550ce9ee0Sniklas 167650ce9ee0Sniklas p->p_md.md_flags &= ~MDP_FPUSED; 1677433075b6Spvalchev #ifndef NO_IEEE 1678433075b6Spvalchev if (__predict_true((p->p_md.md_flags & IEEE_INHERIT) == 0)) { 1679433075b6Spvalchev p->p_md.md_flags &= ~MDP_FP_C; 1680433075b6Spvalchev p->p_addr->u_pcb.pcb_fp.fpr_cr = FPCR_DYN(FP_RN); 1681433075b6Spvalchev } 1682433075b6Spvalchev #endif 1683433075b6Spvalchev if (p->p_addr->u_pcb.pcb_fpcpu != NULL) 1684433075b6Spvalchev fpusave_proc(p, 0); 1685ee2d823aSmiod 1686ee2d823aSmiod retval[1] = 0; 1687433075b6Spvalchev } 1688df930be7Sderaadt 1689433075b6Spvalchev /* 1690433075b6Spvalchev * Release the FPU. 1691433075b6Spvalchev */ 1692433075b6Spvalchev void 1693433075b6Spvalchev fpusave_cpu(struct cpu_info *ci, int save) 1694433075b6Spvalchev { 1695433075b6Spvalchev struct proc *p; 169621c23d01Smiod #if defined(MULTIPROCESSOR) 169721c23d01Smiod int s; 169821c23d01Smiod #endif 1699433075b6Spvalchev 1700433075b6Spvalchev KDASSERT(ci == curcpu()); 1701433075b6Spvalchev 1702433075b6Spvalchev #if defined(MULTIPROCESSOR) 170321c23d01Smiod /* Need to block IPIs */ 17042d7472daSmiod s = splipi(); 1705433075b6Spvalchev atomic_setbits_ulong(&ci->ci_flags, CPUF_FPUSAVE); 1706433075b6Spvalchev #endif 1707433075b6Spvalchev 1708433075b6Spvalchev p = ci->ci_fpcurproc; 1709433075b6Spvalchev if (p == NULL) 1710433075b6Spvalchev goto out; 1711433075b6Spvalchev 1712433075b6Spvalchev if (save) { 1713433075b6Spvalchev alpha_pal_wrfen(1); 1714433075b6Spvalchev savefpstate(&p->p_addr->u_pcb.pcb_fp); 1715433075b6Spvalchev } 1716433075b6Spvalchev 1717433075b6Spvalchev alpha_pal_wrfen(0); 1718433075b6Spvalchev 1719433075b6Spvalchev p->p_addr->u_pcb.pcb_fpcpu = NULL; 1720433075b6Spvalchev ci->ci_fpcurproc = NULL; 1721433075b6Spvalchev 1722433075b6Spvalchev out: 1723433075b6Spvalchev #if defined(MULTIPROCESSOR) 1724433075b6Spvalchev atomic_clearbits_ulong(&ci->ci_flags, CPUF_FPUSAVE); 17254fa86cc0Smiod alpha_pal_swpipl(s); 1726433075b6Spvalchev #endif 1727433075b6Spvalchev return; 1728433075b6Spvalchev } 1729433075b6Spvalchev 1730433075b6Spvalchev /* 1731433075b6Spvalchev * Synchronize FP state for this process. 1732433075b6Spvalchev */ 1733433075b6Spvalchev void 1734433075b6Spvalchev fpusave_proc(struct proc *p, int save) 1735433075b6Spvalchev { 1736433075b6Spvalchev struct cpu_info *ci = curcpu(); 1737433075b6Spvalchev struct cpu_info *oci; 1738433075b6Spvalchev #if defined(MULTIPROCESSOR) 1739433075b6Spvalchev u_long ipi = save ? ALPHA_IPI_SYNCH_FPU : ALPHA_IPI_DISCARD_FPU; 17402d7472daSmiod int s; 1741433075b6Spvalchev #endif 1742433075b6Spvalchev 1743433075b6Spvalchev KDASSERT(p->p_addr != NULL); 1744433075b6Spvalchev 17452d7472daSmiod for (;;) { 174621c23d01Smiod #if defined(MULTIPROCESSOR) 174721c23d01Smiod /* Need to block IPIs */ 17482d7472daSmiod s = splipi(); 174921c23d01Smiod #endif 175021c23d01Smiod 1751433075b6Spvalchev oci = p->p_addr->u_pcb.pcb_fpcpu; 1752433075b6Spvalchev if (oci == NULL) { 175321c23d01Smiod #if defined(MULTIPROCESSOR) 17544fa86cc0Smiod alpha_pal_swpipl(s); 175521c23d01Smiod #endif 1756433075b6Spvalchev return; 1757433075b6Spvalchev } 1758433075b6Spvalchev 1759433075b6Spvalchev #if defined(MULTIPROCESSOR) 1760433075b6Spvalchev if (oci == ci) { 1761433075b6Spvalchev KASSERT(ci->ci_fpcurproc == p); 17624fa86cc0Smiod alpha_pal_swpipl(s); 1763433075b6Spvalchev fpusave_cpu(ci, save); 1764433075b6Spvalchev return; 1765433075b6Spvalchev } 1766433075b6Spvalchev 17672d7472daSmiod /* 17682d7472daSmiod * The other cpu may still be running and could have 17692d7472daSmiod * discarded the fpu context on its own. 17702d7472daSmiod */ 177189043825Smiod if (oci->ci_fpcurproc != p) { 177289043825Smiod alpha_pal_swpipl(s); 17732d7472daSmiod continue; 177489043825Smiod } 17752d7472daSmiod 1776433075b6Spvalchev alpha_send_ipi(oci->ci_cpuid, ipi); 17774fa86cc0Smiod alpha_pal_swpipl(s); 1778433075b6Spvalchev 17792d7472daSmiod while (p->p_addr->u_pcb.pcb_fpcpu != NULL) 17802d7472daSmiod SPINLOCK_SPIN_HOOK; 1781433075b6Spvalchev #else 1782433075b6Spvalchev KASSERT(ci->ci_fpcurproc == p); 1783433075b6Spvalchev fpusave_cpu(ci, save); 1784433075b6Spvalchev #endif /* MULTIPROCESSOR */ 17852d7472daSmiod 17862d7472daSmiod break; 17872d7472daSmiod } 1788df930be7Sderaadt } 1789df930be7Sderaadt 1790df930be7Sderaadt int 1791df930be7Sderaadt spl0() 1792df930be7Sderaadt { 1793df930be7Sderaadt 1794aed035abSart if (ssir) { 1795aed035abSart (void) alpha_pal_swpipl(ALPHA_PSL_IPL_SOFT); 17962a2685f2Sart softintr_dispatch(); 1797aed035abSart } 1798df930be7Sderaadt 179950ce9ee0Sniklas return (alpha_pal_swpipl(ALPHA_PSL_IPL_0)); 1800df930be7Sderaadt } 1801df930be7Sderaadt 1802df930be7Sderaadt /* 1803417eba8cSderaadt * Wait "n" microseconds. 1804417eba8cSderaadt */ 180550ce9ee0Sniklas void 1806417eba8cSderaadt delay(n) 180750ce9ee0Sniklas unsigned long n; 1808417eba8cSderaadt { 18095d097e9eSmiod unsigned long pcc0, pcc1, curcycle, cycles, usec; 18105d097e9eSmiod 18115d097e9eSmiod if (n == 0) 18125d097e9eSmiod return; 18135d097e9eSmiod 18145d097e9eSmiod pcc0 = alpha_rpcc() & 0xffffffffUL; 18155d097e9eSmiod cycles = 0; 18165d097e9eSmiod usec = 0; 18175d097e9eSmiod 18185d097e9eSmiod while (usec <= n) { 18195d097e9eSmiod /* 18205d097e9eSmiod * Get the next CPU cycle count - assumes that we can not 18215d097e9eSmiod * have had more than one 32 bit overflow. 18225d097e9eSmiod */ 18235d097e9eSmiod pcc1 = alpha_rpcc() & 0xffffffffUL; 18245d097e9eSmiod if (pcc1 < pcc0) 18255d097e9eSmiod curcycle = (pcc1 + 0x100000000UL) - pcc0; 18265d097e9eSmiod else 18275d097e9eSmiod curcycle = pcc1 - pcc0; 1828417eba8cSderaadt 1829aed035abSart /* 18305d097e9eSmiod * We now have the number of processor cycles since we 18315d097e9eSmiod * last checked. Add the current cycle count to the 18325d097e9eSmiod * running total. If it's over cycles_per_usec, increment 18335d097e9eSmiod * the usec counter. 1834aed035abSart */ 18355d097e9eSmiod cycles += curcycle; 183621c23d01Smiod while (cycles >= cycles_per_usec) { 18375d097e9eSmiod usec++; 18385d097e9eSmiod cycles -= cycles_per_usec; 18395d097e9eSmiod } 18405d097e9eSmiod pcc0 = pcc1; 18415d097e9eSmiod } 1842417eba8cSderaadt } 1843417eba8cSderaadt 1844aed035abSart int 1845aed035abSart alpha_pa_access(pa) 1846aed035abSart u_long pa; 1847aed035abSart { 1848aed035abSart int i; 1849aed035abSart 1850aed035abSart for (i = 0; i < mem_cluster_cnt; i++) { 1851aed035abSart if (pa < mem_clusters[i].start) 1852aed035abSart continue; 1853aed035abSart if ((pa - mem_clusters[i].start) >= 1854aed035abSart (mem_clusters[i].size & ~PAGE_MASK)) 1855aed035abSart continue; 1856aed035abSart return (mem_clusters[i].size & PAGE_MASK); /* prot */ 1857aed035abSart } 1858aed035abSart 1859aed035abSart /* 1860aed035abSart * Address is not a memory address. If we're secure, disallow 1861aed035abSart * access. Otherwise, grant read/write. 1862aed035abSart */ 1863aed035abSart if (securelevel > 0) 18641e8cdc2eSderaadt return (PROT_NONE); 1865aed035abSart else 18661e8cdc2eSderaadt return (PROT_READ | PROT_WRITE); 1867aed035abSart } 1868aed035abSart 1869e464495eSniklas /* XXX XXX BEGIN XXX XXX */ 1870aed035abSart paddr_t alpha_XXX_dmamap_or; /* XXX */ 1871e464495eSniklas /* XXX */ 1872aed035abSart paddr_t /* XXX */ 1873e464495eSniklas alpha_XXX_dmamap(v) /* XXX */ 1874aed035abSart vaddr_t v; /* XXX */ 1875e464495eSniklas { /* XXX */ 1876e464495eSniklas /* XXX */ 1877e464495eSniklas return (vtophys(v) | alpha_XXX_dmamap_or); /* XXX */ 1878e464495eSniklas } /* XXX */ 1879e464495eSniklas /* XXX XXX END XXX XXX */ 1880