1*c62181b1Sbrad /* $OpenBSD: machdep.c,v 1.101 2006/06/15 20:08:29 brad 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 * 3. All advertising materials mentioning features or use of this software 21aed035abSart * must display the following acknowledgement: 22aed035abSart * This product includes software developed by the NetBSD 23aed035abSart * Foundation, Inc. and its contributors. 24aed035abSart * 4. Neither the name of The NetBSD Foundation nor the names of its 25aed035abSart * contributors may be used to endorse or promote products derived 26aed035abSart * from this software without specific prior written permission. 27aed035abSart * 28aed035abSart * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29aed035abSart * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30aed035abSart * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31aed035abSart * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32aed035abSart * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33aed035abSart * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34aed035abSart * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35aed035abSart * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36aed035abSart * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37aed035abSart * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38aed035abSart * POSSIBILITY OF SUCH DAMAGE. 39aed035abSart */ 40df930be7Sderaadt 41df930be7Sderaadt /* 42417eba8cSderaadt * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University. 43df930be7Sderaadt * All rights reserved. 44df930be7Sderaadt * 45df930be7Sderaadt * Author: Chris G. Demetriou 46df930be7Sderaadt * 47df930be7Sderaadt * Permission to use, copy, modify and distribute this software and 48df930be7Sderaadt * its documentation is hereby granted, provided that both the copyright 49df930be7Sderaadt * notice and this permission notice appear in all copies of the 50df930be7Sderaadt * software, derivative works or modified versions, and any portions 51df930be7Sderaadt * thereof, and that both notices appear in supporting documentation. 52df930be7Sderaadt * 53df930be7Sderaadt * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 54df930be7Sderaadt * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 55df930be7Sderaadt * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 56df930be7Sderaadt * 57df930be7Sderaadt * Carnegie Mellon requests users of this software to return to 58df930be7Sderaadt * 59df930be7Sderaadt * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 60df930be7Sderaadt * School of Computer Science 61df930be7Sderaadt * Carnegie Mellon University 62df930be7Sderaadt * Pittsburgh PA 15213-3890 63df930be7Sderaadt * 64df930be7Sderaadt * any improvements or extensions that they make and grant Carnegie the 65df930be7Sderaadt * rights to redistribute these changes. 66df930be7Sderaadt */ 67df930be7Sderaadt 68df930be7Sderaadt #include <sys/param.h> 69df930be7Sderaadt #include <sys/systm.h> 70df930be7Sderaadt #include <sys/signalvar.h> 71df930be7Sderaadt #include <sys/kernel.h> 72df930be7Sderaadt #include <sys/proc.h> 732a2685f2Sart #include <sys/sched.h> 74df930be7Sderaadt #include <sys/buf.h> 75df930be7Sderaadt #include <sys/reboot.h> 76417eba8cSderaadt #include <sys/device.h> 77df930be7Sderaadt #include <sys/conf.h> 78df930be7Sderaadt #include <sys/file.h> 79d66eba84Sart #include <sys/timeout.h> 80df930be7Sderaadt #include <sys/malloc.h> 81df930be7Sderaadt #include <sys/mbuf.h> 82df930be7Sderaadt #include <sys/msgbuf.h> 83df930be7Sderaadt #include <sys/ioctl.h> 84df930be7Sderaadt #include <sys/tty.h> 85df930be7Sderaadt #include <sys/user.h> 86df930be7Sderaadt #include <sys/exec.h> 87df930be7Sderaadt #include <sys/exec_ecoff.h> 88489e49f9Smiod #include <uvm/uvm_extern.h> 89df930be7Sderaadt #include <sys/sysctl.h> 9050ce9ee0Sniklas #include <sys/core.h> 9150ce9ee0Sniklas #include <sys/kcore.h> 9250ce9ee0Sniklas #include <machine/kcore.h> 93433075b6Spvalchev #ifndef NO_IEEE 94433075b6Spvalchev #include <machine/fpu.h> 95433075b6Spvalchev #endif 96df930be7Sderaadt #ifdef SYSVMSG 97df930be7Sderaadt #include <sys/msg.h> 98df930be7Sderaadt #endif 99df930be7Sderaadt 100df930be7Sderaadt #include <sys/mount.h> 101df930be7Sderaadt #include <sys/syscallargs.h> 102df930be7Sderaadt 103aed035abSart #include <uvm/uvm_extern.h> 104df930be7Sderaadt 105df930be7Sderaadt #include <dev/cons.h> 106df930be7Sderaadt 10750ce9ee0Sniklas #include <machine/autoconf.h> 108df930be7Sderaadt #include <machine/cpu.h> 109df930be7Sderaadt #include <machine/reg.h> 110df930be7Sderaadt #include <machine/rpb.h> 111df930be7Sderaadt #include <machine/prom.h> 1123a630e3fSniklas #include <machine/cpuconf.h> 113433075b6Spvalchev #ifndef NO_IEEE 114433075b6Spvalchev #include <machine/ieeefp.h> 115433075b6Spvalchev #endif 116df930be7Sderaadt 11745e5a1a0Sart #include <dev/pci/pcivar.h> 11845e5a1a0Sart 11912f8bbedSniklas #ifdef DDB 12012f8bbedSniklas #include <machine/db_machdep.h> 12112f8bbedSniklas #include <ddb/db_access.h> 12212f8bbedSniklas #include <ddb/db_sym.h> 12312f8bbedSniklas #include <ddb/db_extern.h> 12412f8bbedSniklas #endif 12512f8bbedSniklas 126c4071fd1Smillert int cpu_dump(void); 127c4071fd1Smillert int cpu_dumpsize(void); 128c4071fd1Smillert u_long cpu_dump_mempagecnt(void); 129c4071fd1Smillert void dumpsys(void); 130c4071fd1Smillert caddr_t allocsys(caddr_t); 131c4071fd1Smillert void identifycpu(void); 132c4071fd1Smillert void regdump(struct trapframe *framep); 133c4071fd1Smillert void printregs(struct reg *); 134df930be7Sderaadt 135df930be7Sderaadt /* 136df930be7Sderaadt * Declare these as initialized data so we can patch them. 137df930be7Sderaadt */ 138df930be7Sderaadt #ifdef NBUF 139df930be7Sderaadt int nbuf = NBUF; 140df930be7Sderaadt #else 141df930be7Sderaadt int nbuf = 0; 142df930be7Sderaadt #endif 14360535ec9Smaja 14460535ec9Smaja #ifndef BUFCACHEPERCENT 14560535ec9Smaja #define BUFCACHEPERCENT 10 14660535ec9Smaja #endif 14760535ec9Smaja 148df930be7Sderaadt #ifdef BUFPAGES 149df930be7Sderaadt int bufpages = BUFPAGES; 150df930be7Sderaadt #else 151df930be7Sderaadt int bufpages = 0; 152df930be7Sderaadt #endif 15360535ec9Smaja int bufcachepercent = BUFCACHEPERCENT; 154aed035abSart 155ab8e80c5Sart struct vm_map *exec_map = NULL; 156ab8e80c5Sart struct vm_map *phys_map = NULL; 157aed035abSart 15827626149Smatthieu #ifdef APERTURE 15927626149Smatthieu #ifdef INSECURE 16027626149Smatthieu int allowaperture = 1; 16127626149Smatthieu #else 16227626149Smatthieu int allowaperture = 0; 16327626149Smatthieu #endif 16427626149Smatthieu #endif 16527626149Smatthieu 166df930be7Sderaadt int totalphysmem; /* total amount of physical memory in system */ 16774652a67Sniklas int physmem; /* physical mem used by OpenBSD + some rsvd */ 168df930be7Sderaadt int resvmem; /* amount of memory reserved for PROM */ 169df930be7Sderaadt int unusedmem; /* amount of memory for OS that we don't use */ 170df930be7Sderaadt int unknownmem; /* amount of memory with an unknown use */ 171df930be7Sderaadt 172df930be7Sderaadt int cputype; /* system type, from the RPB */ 1732586fa93Smiod int alpha_cpus; 174df930be7Sderaadt 1752a2685f2Sart int bootdev_debug = 0; /* patchable, or from DDB */ 1762a2685f2Sart 177df930be7Sderaadt /* 178df930be7Sderaadt * XXX We need an address to which we can assign things so that they 179df930be7Sderaadt * won't be optimized away because we didn't use the value. 180df930be7Sderaadt */ 181df930be7Sderaadt u_int32_t no_optimize; 182df930be7Sderaadt 183df930be7Sderaadt /* the following is used externally (sysctl_hw) */ 184aed035abSart char machine[] = MACHINE; /* from <machine/param.h> */ 185417eba8cSderaadt char cpu_model[128]; 186aed035abSart char root_device[17]; 187df930be7Sderaadt 188df930be7Sderaadt struct user *proc0paddr; 189df930be7Sderaadt 190df930be7Sderaadt /* Number of machine cycles per microsecond */ 191df930be7Sderaadt u_int64_t cycles_per_usec; 192df930be7Sderaadt 193aed035abSart struct bootinfo_kernel bootinfo; 194aed035abSart 195aed035abSart /* For built-in TCDS */ 196aed035abSart #if defined(DEC_3000_300) || defined(DEC_3000_500) 197aed035abSart u_int8_t dec_3000_scsiid[2], dec_3000_scsifast[2]; 198aed035abSart #endif 199aed035abSart 200aed035abSart struct platform platform; 201417eba8cSderaadt 202417eba8cSderaadt /* for cpu_sysctl() */ 20350ce9ee0Sniklas int alpha_unaligned_print = 1; /* warn about unaligned accesses */ 20450ce9ee0Sniklas int alpha_unaligned_fix = 1; /* fix up unaligned accesses */ 205881c1eabSart int alpha_unaligned_sigbus = 1; /* SIGBUS on fixed-up accesses */ 206433075b6Spvalchev #ifndef NO_IEEE 207433075b6Spvalchev int alpha_fp_sync_complete = 0; /* fp fixup if sync even without /s */ 208433075b6Spvalchev #endif 20950ce9ee0Sniklas 210aed035abSart /* 211aed035abSart * XXX This should be dynamically sized, but we have the chicken-egg problem! 212aed035abSart * XXX it should also be larger than it is, because not all of the mddt 213aed035abSart * XXX clusters end up being used for VM. 214aed035abSart */ 215aed035abSart phys_ram_seg_t mem_clusters[VM_PHYSSEG_MAX]; /* low size bits overloaded */ 216aed035abSart int mem_cluster_cnt; 217aed035abSart 2183a630e3fSniklas void 219aed035abSart alpha_init(pfn, ptb, bim, bip, biv) 220df930be7Sderaadt u_long pfn; /* first free PFN number */ 221df930be7Sderaadt u_long ptb; /* PFN of current level 1 page table */ 222aed035abSart u_long bim; /* bootinfo magic */ 223aed035abSart u_long bip; /* bootinfo pointer */ 224aed035abSart u_long biv; /* bootinfo version */ 225df930be7Sderaadt { 226aed035abSart extern char kernel_text[], _end[]; 227df930be7Sderaadt struct mddt *mddtp; 228aed035abSart struct mddt_cluster *memc; 229df930be7Sderaadt int i, mddtweird; 230aed035abSart struct vm_physseg *vps; 231aed035abSart vaddr_t kernstart, kernend; 232aed035abSart paddr_t kernstartpfn, kernendpfn, pfn0, pfn1; 233aed035abSart vsize_t size; 234df930be7Sderaadt char *p; 235aed035abSart caddr_t v; 2362a2685f2Sart const char *bootinfo_msg; 237aed035abSart const struct cpuinit *c; 238aed035abSart extern caddr_t esym; 239aed035abSart struct cpu_info *ci; 240aed035abSart cpuid_t cpu_id; 241df930be7Sderaadt 242aed035abSart /* NO OUTPUT ALLOWED UNTIL FURTHER NOTICE */ 243f3914c62Sniklas 244df930be7Sderaadt /* 245aed035abSart * Turn off interrupts (not mchecks) and floating point. 246df930be7Sderaadt * Make sure the instruction and data streams are consistent. 247df930be7Sderaadt */ 248aed035abSart (void)alpha_pal_swpipl(ALPHA_PSL_IPL_HIGH); 24950ce9ee0Sniklas alpha_pal_wrfen(0); 25050ce9ee0Sniklas ALPHA_TBIA(); 25150ce9ee0Sniklas alpha_pal_imb(); 252df930be7Sderaadt 253*c62181b1Sbrad /* Initialize the SCB. */ 254*c62181b1Sbrad scb_init(); 255*c62181b1Sbrad 256aed035abSart cpu_id = cpu_number(); 257aed035abSart 258aed035abSart #if defined(MULTIPROCESSOR) 259df930be7Sderaadt /* 260aed035abSart * Set our SysValue to the address of our cpu_info structure. 261aed035abSart * Secondary processors do this in their spinup trampoline. 262df930be7Sderaadt */ 263aed035abSart alpha_pal_wrval((u_long)&cpu_info[cpu_id]); 264aed035abSart #endif 265aed035abSart 266aed035abSart ci = curcpu(); 267aed035abSart ci->ci_cpuid = cpu_id; 268aed035abSart 269aed035abSart /* 270aed035abSart * Get critical system information (if possible, from the 271aed035abSart * information provided by the boot program). 272aed035abSart */ 273aed035abSart bootinfo_msg = NULL; 274aed035abSart if (bim == BOOTINFO_MAGIC) { 275aed035abSart if (biv == 0) { /* backward compat */ 276aed035abSart biv = *(u_long *)bip; 277aed035abSart bip += 8; 278aed035abSart } 279aed035abSart switch (biv) { 280aed035abSart case 1: { 281aed035abSart struct bootinfo_v1 *v1p = (struct bootinfo_v1 *)bip; 282aed035abSart 283aed035abSart bootinfo.ssym = v1p->ssym; 284aed035abSart bootinfo.esym = v1p->esym; 285aed035abSart /* hwrpb may not be provided by boot block in v1 */ 286aed035abSart if (v1p->hwrpb != NULL) { 287aed035abSart bootinfo.hwrpb_phys = 288aed035abSart ((struct rpb *)v1p->hwrpb)->rpb_phys; 289aed035abSart bootinfo.hwrpb_size = v1p->hwrpbsize; 290aed035abSart } else { 291aed035abSart bootinfo.hwrpb_phys = 292aed035abSart ((struct rpb *)HWRPB_ADDR)->rpb_phys; 293aed035abSart bootinfo.hwrpb_size = 294aed035abSart ((struct rpb *)HWRPB_ADDR)->rpb_size; 295aed035abSart } 296aed035abSart bcopy(v1p->boot_flags, bootinfo.boot_flags, 297aed035abSart min(sizeof v1p->boot_flags, 298aed035abSart sizeof bootinfo.boot_flags)); 299aed035abSart bcopy(v1p->booted_kernel, bootinfo.booted_kernel, 300aed035abSart min(sizeof v1p->booted_kernel, 301aed035abSart sizeof bootinfo.booted_kernel)); 302aed035abSart /* booted dev not provided in bootinfo */ 303aed035abSart init_prom_interface((struct rpb *) 304aed035abSart ALPHA_PHYS_TO_K0SEG(bootinfo.hwrpb_phys)); 305aed035abSart prom_getenv(PROM_E_BOOTED_DEV, bootinfo.booted_dev, 306aed035abSart sizeof bootinfo.booted_dev); 307aed035abSart break; 308aed035abSart } 309aed035abSart default: 310aed035abSart bootinfo_msg = "unknown bootinfo version"; 311aed035abSart goto nobootinfo; 312aed035abSart } 313aed035abSart } else { 314aed035abSart bootinfo_msg = "boot program did not pass bootinfo"; 315aed035abSart nobootinfo: 316aed035abSart bootinfo.ssym = (u_long)_end; 317aed035abSart bootinfo.esym = (u_long)_end; 318aed035abSart bootinfo.hwrpb_phys = ((struct rpb *)HWRPB_ADDR)->rpb_phys; 319aed035abSart bootinfo.hwrpb_size = ((struct rpb *)HWRPB_ADDR)->rpb_size; 320aed035abSart init_prom_interface((struct rpb *)HWRPB_ADDR); 321aed035abSart prom_getenv(PROM_E_BOOTED_OSFLAGS, bootinfo.boot_flags, 322aed035abSart sizeof bootinfo.boot_flags); 323aed035abSart prom_getenv(PROM_E_BOOTED_FILE, bootinfo.booted_kernel, 324aed035abSart sizeof bootinfo.booted_kernel); 325aed035abSart prom_getenv(PROM_E_BOOTED_DEV, bootinfo.booted_dev, 326aed035abSart sizeof bootinfo.booted_dev); 327aed035abSart } 328aed035abSart 329aed035abSart esym = (caddr_t)bootinfo.esym; 330aed035abSart /* 331aed035abSart * Initialize the kernel's mapping of the RPB. It's needed for 332aed035abSart * lots of things. 333aed035abSart */ 334aed035abSart hwrpb = (struct rpb *)ALPHA_PHYS_TO_K0SEG(bootinfo.hwrpb_phys); 335aed035abSart 336aed035abSart #if defined(DEC_3000_300) || defined(DEC_3000_500) 337aed035abSart if (hwrpb->rpb_type == ST_DEC_3000_300 || 338aed035abSart hwrpb->rpb_type == ST_DEC_3000_500) { 339aed035abSart prom_getenv(PROM_E_SCSIID, dec_3000_scsiid, 340aed035abSart sizeof(dec_3000_scsiid)); 341aed035abSart prom_getenv(PROM_E_SCSIFAST, dec_3000_scsifast, 342aed035abSart sizeof(dec_3000_scsifast)); 343aed035abSart } 344aed035abSart #endif 345df930be7Sderaadt 346df930be7Sderaadt /* 347df930be7Sderaadt * Remember how many cycles there are per microsecond, 348df930be7Sderaadt * so that we can use delay(). Round up, for safety. 349df930be7Sderaadt */ 350df930be7Sderaadt cycles_per_usec = (hwrpb->rpb_cc_freq + 999999) / 1000000; 351df930be7Sderaadt 352df930be7Sderaadt /* 3539e71c994Saaron * Initialize the (temporary) bootstrap console interface, so 354aed035abSart * we can use printf until the VM system starts being setup. 355aed035abSart * The real console is initialized before then. 356df930be7Sderaadt */ 357aed035abSart init_bootstrap_console(); 358aed035abSart 359aed035abSart /* OUTPUT NOW ALLOWED */ 360aed035abSart 361aed035abSart /* delayed from above */ 362aed035abSart if (bootinfo_msg) 363aed035abSart printf("WARNING: %s (0x%lx, 0x%lx, 0x%lx)\n", 364aed035abSart bootinfo_msg, bim, bip, biv); 365aed035abSart 366aed035abSart /* Initialize the trap vectors on the primary processor. */ 367aed035abSart trap_init(); 368df930be7Sderaadt 369df930be7Sderaadt /* 370aed035abSart * Find out what hardware we're on, and do basic initialization. 371df930be7Sderaadt */ 372aed035abSart cputype = hwrpb->rpb_type; 373aed035abSart if (cputype < 0) { 374aed035abSart /* 375aed035abSart * At least some white-box systems have SRM which 376aed035abSart * reports a systype that's the negative of their 377aed035abSart * blue-box counterpart. 378aed035abSart */ 379aed035abSart cputype = -cputype; 380aed035abSart } 381aed035abSart c = platform_lookup(cputype); 382aed035abSart if (c == NULL) { 383aed035abSart platform_not_supported(); 384aed035abSart /* NOTREACHED */ 385aed035abSart } 386aed035abSart (*c->init)(); 387094fa01fSderaadt strlcpy(cpu_model, platform.model, sizeof cpu_model); 38850ce9ee0Sniklas 38950ce9ee0Sniklas /* 3909e71c994Saaron * Initialize the real console, so that the bootstrap console is 391aed035abSart * no longer necessary. 39250ce9ee0Sniklas */ 393aed035abSart (*platform.cons_init)(); 394aed035abSart 395a55851f4Sderaadt #if 0 396aed035abSart /* Paranoid sanity checking */ 397aed035abSart 398aed035abSart assert(hwrpb->rpb_primary_cpu_id == alpha_pal_whami()); 399aed035abSart 400aed035abSart /* 401aed035abSart * On single-CPU systypes, the primary should always be CPU 0, 402aed035abSart * except on Alpha 8200 systems where the CPU id is related 403aed035abSart * to the VID, which is related to the Turbo Laser node id. 404aed035abSart */ 405aed035abSart if (cputype != ST_DEC_21000) 406aed035abSart assert(hwrpb->rpb_primary_cpu_id == 0); 407aed035abSart #endif 408aed035abSart 409aed035abSart /* NO MORE FIRMWARE ACCESS ALLOWED */ 410aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 411aed035abSart /* 412aed035abSart * XXX (unless _PMAP_MAY_USE_PROM_CONSOLE is defined and 413aed035abSart * XXX pmap_uses_prom_console() evaluates to non-zero.) 414aed035abSart */ 415aed035abSart #endif 416aed035abSart 417cfcdef40Smiod #ifndef SMALL_KERNEL 418cfcdef40Smiod /* 419cfcdef40Smiod * If we run on a BWX-capable processor, override cpu_switch 420cfcdef40Smiod * with a faster version. 421cfcdef40Smiod * We do this now because the kernel text might be mapped 422cfcdef40Smiod * read-only eventually (although this is not the case at the moment). 423cfcdef40Smiod */ 424cfcdef40Smiod if (alpha_implver() >= ALPHA_IMPLVER_EV5) { 425cfcdef40Smiod if (~alpha_amask(ALPHA_AMASK_BWX) != 0) { 426cfcdef40Smiod extern vaddr_t __bwx_switch0, __bwx_switch1, 427cfcdef40Smiod __bwx_switch2, __bwx_switch3; 428cfcdef40Smiod u_int32_t *dst, *src, *end; 429cfcdef40Smiod 430cfcdef40Smiod src = (u_int32_t *)&__bwx_switch2; 431cfcdef40Smiod end = (u_int32_t *)&__bwx_switch3; 432cfcdef40Smiod dst = (u_int32_t *)&__bwx_switch0; 433cfcdef40Smiod while (src != end) 434cfcdef40Smiod *dst++ = *src++; 435cfcdef40Smiod src = (u_int32_t *)&__bwx_switch1; 436cfcdef40Smiod end = (u_int32_t *)&__bwx_switch2; 437cfcdef40Smiod while (src != end) 438cfcdef40Smiod *dst++ = *src++; 439cfcdef40Smiod } 440cfcdef40Smiod } 441cfcdef40Smiod #endif 442cfcdef40Smiod 443aed035abSart /* 444aed035abSart * find out this system's page size 445aed035abSart */ 44673b9fe7cSart if ((uvmexp.pagesize = hwrpb->rpb_page_size) != 8192) 44773b9fe7cSart panic("page size %d != 8192?!", uvmexp.pagesize); 448aed035abSart 449aed035abSart uvm_setpagesize(); 450aed035abSart 451aed035abSart /* 452aed035abSart * Find the beginning and end of the kernel (and leave a 453aed035abSart * bit of space before the beginning for the bootstrap 454aed035abSart * stack). 455aed035abSart */ 456aed035abSart kernstart = trunc_page((vaddr_t)kernel_text) - 2 * PAGE_SIZE; 457aed035abSart kernend = (vaddr_t)round_page((vaddr_t)bootinfo.esym); 458aed035abSart 459aed035abSart kernstartpfn = atop(ALPHA_K0SEG_TO_PHYS(kernstart)); 460aed035abSart kernendpfn = atop(ALPHA_K0SEG_TO_PHYS(kernend)); 461df930be7Sderaadt 462df930be7Sderaadt /* 463df930be7Sderaadt * Find out how much memory is available, by looking at 464df930be7Sderaadt * the memory cluster descriptors. This also tries to do 465df930be7Sderaadt * its best to detect things things that have never been seen 466df930be7Sderaadt * before... 467df930be7Sderaadt */ 468df930be7Sderaadt mddtp = (struct mddt *)(((caddr_t)hwrpb) + hwrpb->rpb_memdat_off); 469df930be7Sderaadt 470aed035abSart /* MDDT SANITY CHECKING */ 471df930be7Sderaadt mddtweird = 0; 472aed035abSart if (mddtp->mddt_cluster_cnt < 2) { 473df930be7Sderaadt mddtweird = 1; 474aed035abSart printf("WARNING: weird number of mem clusters: %lu\n", 475aed035abSart mddtp->mddt_cluster_cnt); 476df930be7Sderaadt } 477df930be7Sderaadt 478aed035abSart #if 0 479aed035abSart printf("Memory cluster count: %d\n", mddtp->mddt_cluster_cnt); 480aed035abSart #endif 481df930be7Sderaadt 482aed035abSart for (i = 0; i < mddtp->mddt_cluster_cnt; i++) { 483aed035abSart memc = &mddtp->mddt_clusters[i]; 484aed035abSart #if 0 485aed035abSart printf("MEMC %d: pfn 0x%lx cnt 0x%lx usage 0x%lx\n", i, 486aed035abSart memc->mddt_pfn, memc->mddt_pg_cnt, memc->mddt_usage); 487aed035abSart #endif 488aed035abSart totalphysmem += memc->mddt_pg_cnt; 489aed035abSart if (mem_cluster_cnt < VM_PHYSSEG_MAX) { /* XXX */ 490aed035abSart mem_clusters[mem_cluster_cnt].start = 491aed035abSart ptoa(memc->mddt_pfn); 492aed035abSart mem_clusters[mem_cluster_cnt].size = 493aed035abSart ptoa(memc->mddt_pg_cnt); 494aed035abSart if (memc->mddt_usage & MDDT_mbz || 495aed035abSart memc->mddt_usage & MDDT_NONVOLATILE || /* XXX */ 496aed035abSart memc->mddt_usage & MDDT_PALCODE) 497aed035abSart mem_clusters[mem_cluster_cnt].size |= 498aed035abSart VM_PROT_READ; 499aed035abSart else 500aed035abSart mem_clusters[mem_cluster_cnt].size |= 501aed035abSart VM_PROT_READ | VM_PROT_WRITE | VM_PROT_EXECUTE; 502aed035abSart mem_cluster_cnt++; 503aed035abSart } 504aed035abSart 505aed035abSart if (memc->mddt_usage & MDDT_mbz) { 506aed035abSart mddtweird = 1; 507aed035abSart printf("WARNING: mem cluster %d has weird " 508aed035abSart "usage 0x%lx\n", i, memc->mddt_usage); 509aed035abSart unknownmem += memc->mddt_pg_cnt; 510aed035abSart continue; 511aed035abSart } 512aed035abSart if (memc->mddt_usage & MDDT_NONVOLATILE) { 513aed035abSart /* XXX should handle these... */ 514aed035abSart printf("WARNING: skipping non-volatile mem " 515aed035abSart "cluster %d\n", i); 516aed035abSart unusedmem += memc->mddt_pg_cnt; 517aed035abSart continue; 518aed035abSart } 519aed035abSart if (memc->mddt_usage & MDDT_PALCODE) { 520aed035abSart resvmem += memc->mddt_pg_cnt; 521aed035abSart continue; 522aed035abSart } 523aed035abSart 524aed035abSart /* 525aed035abSart * We have a memory cluster available for system 526aed035abSart * software use. We must determine if this cluster 527aed035abSart * holds the kernel. 528aed035abSart */ 529aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 530aed035abSart /* 531aed035abSart * XXX If the kernel uses the PROM console, we only use the 532aed035abSart * XXX memory after the kernel in the first system segment, 533aed035abSart * XXX to avoid clobbering prom mapping, data, etc. 534aed035abSart */ 535aed035abSart if (!pmap_uses_prom_console() || physmem == 0) { 536aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 537aed035abSart physmem += memc->mddt_pg_cnt; 538aed035abSart pfn0 = memc->mddt_pfn; 539aed035abSart pfn1 = memc->mddt_pfn + memc->mddt_pg_cnt; 540aed035abSart if (pfn0 <= kernstartpfn && kernendpfn <= pfn1) { 541aed035abSart /* 542aed035abSart * Must compute the location of the kernel 543aed035abSart * within the segment. 544aed035abSart */ 545aed035abSart #if 0 546aed035abSart printf("Cluster %d contains kernel\n", i); 547aed035abSart #endif 548aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 549aed035abSart if (!pmap_uses_prom_console()) { 550aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 551aed035abSart if (pfn0 < kernstartpfn) { 552aed035abSart /* 553aed035abSart * There is a chunk before the kernel. 554aed035abSart */ 555aed035abSart #if 0 556aed035abSart printf("Loading chunk before kernel: " 557aed035abSart "0x%lx / 0x%lx\n", pfn0, kernstartpfn); 558aed035abSart #endif 559aed035abSart uvm_page_physload(pfn0, kernstartpfn, 560aed035abSart pfn0, kernstartpfn, VM_FREELIST_DEFAULT); 561aed035abSart } 562aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 563aed035abSart } 564aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 565aed035abSart if (kernendpfn < pfn1) { 566aed035abSart /* 567aed035abSart * There is a chunk after the kernel. 568aed035abSart */ 569aed035abSart #if 0 570aed035abSart printf("Loading chunk after kernel: " 571aed035abSart "0x%lx / 0x%lx\n", kernendpfn, pfn1); 572aed035abSart #endif 573aed035abSart uvm_page_physload(kernendpfn, pfn1, 574aed035abSart kernendpfn, pfn1, VM_FREELIST_DEFAULT); 575aed035abSart } 576aed035abSart } else { 577aed035abSart /* 578aed035abSart * Just load this cluster as one chunk. 579aed035abSart */ 580aed035abSart #if 0 581aed035abSart printf("Loading cluster %d: 0x%lx / 0x%lx\n", i, 582aed035abSart pfn0, pfn1); 583aed035abSart #endif 584aed035abSart uvm_page_physload(pfn0, pfn1, pfn0, pfn1, 585aed035abSart VM_FREELIST_DEFAULT); 586aed035abSart } 587aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 588aed035abSart } 589aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 590aed035abSart } 591aed035abSart 592a37778bcSderaadt #ifdef DEBUG 593aed035abSart /* 594aed035abSart * Dump out the MDDT if it looks odd... 595aed035abSart */ 596df930be7Sderaadt if (mddtweird) { 597df930be7Sderaadt printf("\n"); 598df930be7Sderaadt printf("complete memory cluster information:\n"); 599df930be7Sderaadt for (i = 0; i < mddtp->mddt_cluster_cnt; i++) { 600df930be7Sderaadt printf("mddt %d:\n", i); 601df930be7Sderaadt printf("\tpfn %lx\n", 602df930be7Sderaadt mddtp->mddt_clusters[i].mddt_pfn); 603df930be7Sderaadt printf("\tcnt %lx\n", 604df930be7Sderaadt mddtp->mddt_clusters[i].mddt_pg_cnt); 605df930be7Sderaadt printf("\ttest %lx\n", 606df930be7Sderaadt mddtp->mddt_clusters[i].mddt_pg_test); 607df930be7Sderaadt printf("\tbva %lx\n", 608df930be7Sderaadt mddtp->mddt_clusters[i].mddt_v_bitaddr); 609df930be7Sderaadt printf("\tbpa %lx\n", 610df930be7Sderaadt mddtp->mddt_clusters[i].mddt_p_bitaddr); 611df930be7Sderaadt printf("\tbcksum %lx\n", 612df930be7Sderaadt mddtp->mddt_clusters[i].mddt_bit_cksum); 613df930be7Sderaadt printf("\tusage %lx\n", 614df930be7Sderaadt mddtp->mddt_clusters[i].mddt_usage); 615df930be7Sderaadt } 616df930be7Sderaadt printf("\n"); 617df930be7Sderaadt } 618a37778bcSderaadt #endif 619df930be7Sderaadt 620df930be7Sderaadt if (totalphysmem == 0) 621df930be7Sderaadt panic("can't happen: system seems to have no memory!"); 622df930be7Sderaadt #if 0 623df930be7Sderaadt printf("totalphysmem = %d\n", totalphysmem); 624df930be7Sderaadt printf("physmem = %d\n", physmem); 625df930be7Sderaadt printf("resvmem = %d\n", resvmem); 626df930be7Sderaadt printf("unusedmem = %d\n", unusedmem); 627df930be7Sderaadt printf("unknownmem = %d\n", unknownmem); 628df930be7Sderaadt #endif 629df930be7Sderaadt 630df930be7Sderaadt /* 631aed035abSart * Initialize error message buffer (at end of core). 632df930be7Sderaadt */ 633aed035abSart { 634aed035abSart vsize_t sz = (vsize_t)round_page(MSGBUFSIZE); 635aed035abSart vsize_t reqsz = sz; 636df930be7Sderaadt 637aed035abSart vps = &vm_physmem[vm_nphysseg - 1]; 638e1da84e1Salex 639aed035abSart /* shrink so that it'll fit in the last segment */ 640aed035abSart if ((vps->avail_end - vps->avail_start) < atop(sz)) 641aed035abSart sz = ptoa(vps->avail_end - vps->avail_start); 642aed035abSart 643aed035abSart vps->end -= atop(sz); 644aed035abSart vps->avail_end -= atop(sz); 645aed035abSart initmsgbuf((caddr_t) ALPHA_PHYS_TO_K0SEG(ptoa(vps->end)), sz); 646aed035abSart 647aed035abSart /* Remove the last segment if it now has no pages. */ 648aed035abSart if (vps->start == vps->end) 649aed035abSart vm_nphysseg--; 650aed035abSart 651aed035abSart /* warn if the message buffer had to be shrunk */ 652aed035abSart if (sz != reqsz) 653aed035abSart printf("WARNING: %ld bytes not available for msgbuf " 654aed035abSart "in last cluster (%ld used)\n", reqsz, sz); 655aed035abSart 656aed035abSart } 657aed035abSart 658df930be7Sderaadt /* 659df930be7Sderaadt * Init mapping for u page(s) for proc 0 660df930be7Sderaadt */ 661aed035abSart proc0.p_addr = proc0paddr = 662aed035abSart (struct user *)pmap_steal_memory(UPAGES * PAGE_SIZE, NULL, NULL); 663df930be7Sderaadt 664df930be7Sderaadt /* 665aed035abSart * Allocate space for system data structures. These data structures 666aed035abSart * are allocated here instead of cpu_startup() because physical 667aed035abSart * memory is directly addressable. We don't have to map these into 668aed035abSart * virtual address space. 669df930be7Sderaadt */ 670aed035abSart size = (vsize_t)allocsys(NULL); 671aed035abSart v = (caddr_t)pmap_steal_memory(size, NULL, NULL); 672aed035abSart if ((allocsys(v) - v) != size) 673aed035abSart panic("alpha_init: table size inconsistency"); 674df930be7Sderaadt 675df930be7Sderaadt /* 676df930be7Sderaadt * Clear allocated memory. 677df930be7Sderaadt */ 678aed035abSart bzero(v, size); 679df930be7Sderaadt 680df930be7Sderaadt /* 681df930be7Sderaadt * Initialize the virtual memory system, and set the 682df930be7Sderaadt * page table base register in proc 0's PCB. 683df930be7Sderaadt */ 684aed035abSart pmap_bootstrap(ALPHA_PHYS_TO_K0SEG(ptb << PGSHIFT), 685aed035abSart hwrpb->rpb_max_asn, hwrpb->rpb_pcs_cnt); 686df930be7Sderaadt 687df930be7Sderaadt /* 688df930be7Sderaadt * Initialize the rest of proc 0's PCB, and cache its physical 689df930be7Sderaadt * address. 690df930be7Sderaadt */ 691df930be7Sderaadt proc0.p_md.md_pcbpaddr = 692aed035abSart (struct pcb *)ALPHA_K0SEG_TO_PHYS((vaddr_t)&proc0paddr->u_pcb); 693df930be7Sderaadt 694df930be7Sderaadt /* 695df930be7Sderaadt * Set the kernel sp, reserving space for an (empty) trapframe, 696df930be7Sderaadt * and make proc0's trapframe pointer point to it for sanity. 697df930be7Sderaadt */ 69850ce9ee0Sniklas proc0paddr->u_pcb.pcb_hw.apcb_ksp = 699df930be7Sderaadt (u_int64_t)proc0paddr + USPACE - sizeof(struct trapframe); 70074652a67Sniklas proc0.p_md.md_tf = 70174652a67Sniklas (struct trapframe *)proc0paddr->u_pcb.pcb_hw.apcb_ksp; 70250ce9ee0Sniklas 703aed035abSart /* 704aed035abSart * Initialize the primary CPU's idle PCB to proc0's. In a 705aed035abSart * MULTIPROCESSOR configuration, each CPU will later get 706aed035abSart * its own idle PCB when autoconfiguration runs. 707aed035abSart */ 708aed035abSart ci->ci_idle_pcb = &proc0paddr->u_pcb; 709aed035abSart ci->ci_idle_pcb_paddr = (u_long)proc0.p_md.md_pcbpaddr; 710df930be7Sderaadt 711df930be7Sderaadt /* 712df930be7Sderaadt * Look at arguments passed to us and compute boothowto. 713df930be7Sderaadt */ 714417eba8cSderaadt 715df930be7Sderaadt #ifdef KADB 716df930be7Sderaadt boothowto |= RB_KDB; 717df930be7Sderaadt #endif 718aed035abSart for (p = bootinfo.boot_flags; p && *p != '\0'; p++) { 719417eba8cSderaadt /* 720417eba8cSderaadt * Note that we'd really like to differentiate case here, 721417eba8cSderaadt * but the Alpha AXP Architecture Reference Manual 722417eba8cSderaadt * says that we shouldn't. 723417eba8cSderaadt */ 724df930be7Sderaadt switch (*p) { 725371c77f5Smartin case 'a': /* Ignore */ 726417eba8cSderaadt case 'A': 727df930be7Sderaadt break; 728df930be7Sderaadt 72912f8bbedSniklas case 'b': /* Enter DDB as soon as the console is initialised */ 73012f8bbedSniklas case 'B': 73112f8bbedSniklas boothowto |= RB_KDB; 73212f8bbedSniklas break; 73312f8bbedSniklas 73450ce9ee0Sniklas case 'c': /* enter user kernel configuration */ 73550ce9ee0Sniklas case 'C': 73650ce9ee0Sniklas boothowto |= RB_CONFIG; 73750ce9ee0Sniklas break; 73850ce9ee0Sniklas 73950ce9ee0Sniklas #ifdef DEBUG 74050ce9ee0Sniklas case 'd': /* crash dump immediately after autoconfig */ 74150ce9ee0Sniklas case 'D': 74250ce9ee0Sniklas boothowto |= RB_DUMP; 74350ce9ee0Sniklas break; 74450ce9ee0Sniklas #endif 74550ce9ee0Sniklas 74650ce9ee0Sniklas case 'h': /* always halt, never reboot */ 74750ce9ee0Sniklas case 'H': 74850ce9ee0Sniklas boothowto |= RB_HALT; 749df930be7Sderaadt break; 750df930be7Sderaadt 751417eba8cSderaadt #if 0 752417eba8cSderaadt case 'm': /* mini root present in memory */ 753417eba8cSderaadt case 'M': 754417eba8cSderaadt boothowto |= RB_MINIROOT; 755417eba8cSderaadt break; 756417eba8cSderaadt #endif 75750ce9ee0Sniklas 75850ce9ee0Sniklas case 'n': /* askname */ 75950ce9ee0Sniklas case 'N': 76050ce9ee0Sniklas boothowto |= RB_ASKNAME; 76150ce9ee0Sniklas break; 762aed035abSart 763371c77f5Smartin case 's': /* single-user */ 764aed035abSart case 'S': 765aed035abSart boothowto |= RB_SINGLE; 766aed035abSart break; 767aed035abSart 768aed035abSart case '-': 769aed035abSart /* 770aed035abSart * Just ignore this. It's not required, but it's 771aed035abSart * common for it to be passed regardless. 772aed035abSart */ 773aed035abSart break; 774aed035abSart 775aed035abSart default: 776aed035abSart printf("Unrecognized boot flag '%c'.\n", *p); 777aed035abSart break; 778df930be7Sderaadt } 779df930be7Sderaadt } 780df930be7Sderaadt 781aed035abSart 782df930be7Sderaadt /* 783df930be7Sderaadt * Figure out the number of cpus in the box, from RPB fields. 784df930be7Sderaadt * Really. We mean it. 785df930be7Sderaadt */ 7862586fa93Smiod for (alpha_cpus = 0, i = 0; i < hwrpb->rpb_pcs_cnt; i++) { 787df930be7Sderaadt struct pcs *pcsp; 788df930be7Sderaadt 789aed035abSart pcsp = LOCATE_PCS(hwrpb, i); 790df930be7Sderaadt if ((pcsp->pcs_flags & PCS_PP) != 0) 7912586fa93Smiod alpha_cpus++; 792df930be7Sderaadt } 793aed035abSart 794aed035abSart /* 795aed035abSart * Initialize debuggers, and break into them if appropriate. 796aed035abSart */ 797aed035abSart #ifdef DDB 798aed035abSart ddb_init(); 799aed035abSart 800aed035abSart if (boothowto & RB_KDB) 801aed035abSart Debugger(); 802aed035abSart #endif 803aed035abSart #ifdef KGDB 804aed035abSart if (boothowto & RB_KDB) 805aed035abSart kgdb_connect(0); 806aed035abSart #endif 807aed035abSart /* 808aed035abSart * Figure out our clock frequency, from RPB fields. 809aed035abSart */ 810aed035abSart hz = hwrpb->rpb_intr_freq >> 12; 811aed035abSart if (!(60 <= hz && hz <= 10240)) { 812aed035abSart hz = 1024; 813aed035abSart #ifdef DIAGNOSTIC 814aed035abSart printf("WARNING: unbelievable rpb_intr_freq: %ld (%d hz)\n", 815aed035abSart hwrpb->rpb_intr_freq, hz); 816aed035abSart #endif 817aed035abSart } 818aed035abSart } 819aed035abSart 820aed035abSart caddr_t 821aed035abSart allocsys(v) 822aed035abSart caddr_t v; 823aed035abSart { 824aed035abSart /* 825aed035abSart * Allocate space for system data structures. 826aed035abSart * The first available kernel virtual address is in "v". 827aed035abSart * As pages of kernel virtual memory are allocated, "v" is incremented. 828aed035abSart * 829aed035abSart * These data structures are allocated here instead of cpu_startup() 830aed035abSart * because physical memory is directly addressable. We don't have 831aed035abSart * to map these into virtual address space. 832aed035abSart */ 833aed035abSart #define valloc(name, type, num) \ 834aed035abSart (name) = (type *)v; v = (caddr_t)ALIGN((name)+(num)) 835aed035abSart 836aed035abSart #ifdef SYSVMSG 837aed035abSart valloc(msgpool, char, msginfo.msgmax); 838aed035abSart valloc(msgmaps, struct msgmap, msginfo.msgseg); 839aed035abSart valloc(msghdrs, struct msg, msginfo.msgtql); 840aed035abSart valloc(msqids, struct msqid_ds, msginfo.msgmni); 841aed035abSart #endif 842aed035abSart 843aed035abSart /* 844aed035abSart * Determine how many buffers to allocate. 845aed035abSart * We allocate 10% of memory for buffer space. Insure a 846aed035abSart * minimum of 16 buffers. 847aed035abSart */ 848aed035abSart if (bufpages == 0) 84960535ec9Smaja bufpages = (physmem / (100/bufcachepercent)); 850aed035abSart if (nbuf == 0) { 851aed035abSart nbuf = bufpages; 852aed035abSart if (nbuf < 16) 853aed035abSart nbuf = 16; 854aed035abSart } 855aed035abSart valloc(buf, struct buf, nbuf); 856aed035abSart 857aed035abSart #undef valloc 858aed035abSart 859aed035abSart return v; 860df930be7Sderaadt } 861df930be7Sderaadt 862417eba8cSderaadt void 863df930be7Sderaadt consinit() 864df930be7Sderaadt { 865aed035abSart 866aed035abSart /* 867aed035abSart * Everything related to console initialization is done 868aed035abSart * in alpha_init(). 869aed035abSart */ 870aed035abSart #if defined(DIAGNOSTIC) && defined(_PMAP_MAY_USE_PROM_CONSOLE) 871aed035abSart printf("consinit: %susing prom console\n", 872aed035abSart pmap_uses_prom_console() ? "" : "not "); 87312f8bbedSniklas #endif 874df930be7Sderaadt } 875df930be7Sderaadt 876417eba8cSderaadt void 877df930be7Sderaadt cpu_startup() 878df930be7Sderaadt { 879df930be7Sderaadt register unsigned i; 880df930be7Sderaadt int base, residual; 881aed035abSart vaddr_t minaddr, maxaddr; 882aed035abSart vsize_t size; 88350ce9ee0Sniklas #if defined(DEBUG) 884df930be7Sderaadt extern int pmapdebug; 885df930be7Sderaadt int opmapdebug = pmapdebug; 886df930be7Sderaadt 887df930be7Sderaadt pmapdebug = 0; 888df930be7Sderaadt #endif 889df930be7Sderaadt 890df930be7Sderaadt /* 891df930be7Sderaadt * Good {morning,afternoon,evening,night}. 892df930be7Sderaadt */ 893df930be7Sderaadt printf(version); 894df930be7Sderaadt identifycpu(); 8953f4ce3b7Smiod printf("total memory = %ld (%ldK)\n", (long)ptoa(totalphysmem), 8963f4ce3b7Smiod (long)ptoa(totalphysmem) / 1024); 8973f4ce3b7Smiod printf("(%ld reserved for PROM, ", (long)ptoa(resvmem)); 8983f4ce3b7Smiod printf("%ld used by OpenBSD)\n", (long)ptoa(physmem)); 899aed035abSart if (unusedmem) { 9003f4ce3b7Smiod printf("WARNING: unused memory = %ld (%ldK)\n", 9013f4ce3b7Smiod (long)ptoa(unusedmem), (long)ptoa(unusedmem) / 1024); 902aed035abSart } 903aed035abSart if (unknownmem) { 9043f4ce3b7Smiod printf("WARNING: %ld (%ldK) of memory with unknown purpose\n", 9053f4ce3b7Smiod (long)ptoa(unknownmem), (long)ptoa(unknownmem) / 1024); 906aed035abSart } 907df930be7Sderaadt 908df930be7Sderaadt /* 909df930be7Sderaadt * Allocate virtual address space for file I/O buffers. 910df930be7Sderaadt * Note they are different than the array of headers, 'buf', 911df930be7Sderaadt * and usually occupy more virtual memory than physical. 912df930be7Sderaadt */ 913df930be7Sderaadt size = MAXBSIZE * nbuf; 914aed035abSart if (uvm_map(kernel_map, (vaddr_t *) &buffers, round_page(size), 915198a4b3fSart NULL, UVM_UNKNOWN_OFFSET, 0, 916aed035abSart UVM_MAPFLAG(UVM_PROT_NONE, UVM_PROT_NONE, UVM_INH_NONE, 917738a5b4dSart UVM_ADV_NORMAL, 0))) 918aed035abSart panic("startup: cannot allocate VM for buffers"); 919df930be7Sderaadt base = bufpages / nbuf; 920df930be7Sderaadt residual = bufpages % nbuf; 921df930be7Sderaadt for (i = 0; i < nbuf; i++) { 922aed035abSart vsize_t curbufsize; 923aed035abSart vaddr_t curbuf; 924aed035abSart struct vm_page *pg; 925df930be7Sderaadt 926df930be7Sderaadt /* 927aed035abSart * Each buffer has MAXBSIZE bytes of VM space allocated. Of 928aed035abSart * that MAXBSIZE space, we allocate and map (base+1) pages 929aed035abSart * for the first "residual" buffers, and then we allocate 930aed035abSart * "base" pages for the rest. 931df930be7Sderaadt */ 932aed035abSart curbuf = (vaddr_t) buffers + (i * MAXBSIZE); 933194dd68bSbrad curbufsize = PAGE_SIZE * ((i < residual) ? (base+1) : base); 934aed035abSart 935aed035abSart while (curbufsize) { 936aed035abSart pg = uvm_pagealloc(NULL, 0, NULL, 0); 937aed035abSart if (pg == NULL) 938aed035abSart panic("cpu_startup: not enough memory for " 939aed035abSart "buffer cache"); 940aed035abSart pmap_kenter_pa(curbuf, VM_PAGE_TO_PHYS(pg), 941aed035abSart VM_PROT_READ|VM_PROT_WRITE); 942aed035abSart curbuf += PAGE_SIZE; 943aed035abSart curbufsize -= PAGE_SIZE; 944aed035abSart } 9450e5798cfSart pmap_update(pmap_kernel()); 946df930be7Sderaadt } 947df930be7Sderaadt /* 948df930be7Sderaadt * Allocate a submap for exec arguments. This map effectively 949df930be7Sderaadt * limits the number of processes exec'ing at any time. 950df930be7Sderaadt */ 9517c10a71dSdrahn minaddr = vm_map_min(kernel_map); 952aed035abSart exec_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 953aed035abSart 16 * NCARGS, VM_MAP_PAGEABLE, FALSE, NULL); 954df930be7Sderaadt 955df930be7Sderaadt /* 956df930be7Sderaadt * Allocate a submap for physio 957df930be7Sderaadt */ 958aed035abSart phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 959aed035abSart VM_PHYS_SIZE, 0, FALSE, NULL); 960df930be7Sderaadt 96150ce9ee0Sniklas #if defined(DEBUG) 962df930be7Sderaadt pmapdebug = opmapdebug; 963df930be7Sderaadt #endif 9643f4ce3b7Smiod printf("avail memory = %ld (%ldK)\n", (long)ptoa(uvmexp.free), 9653f4ce3b7Smiod (long)ptoa(uvmexp.free) / 1024); 966aed035abSart #if 0 967aed035abSart { 968aed035abSart extern u_long pmap_pages_stolen; 969aed035abSart 970aed035abSart printf("stolen memory for VM structures = %d\n", pmap_pages_stolen * PAGE_SIZE); 971aed035abSart } 972aed035abSart #endif 9733f4ce3b7Smiod printf("using %ld buffers containing %ld bytes (%ldK) of memory\n", 974194dd68bSbrad (long)nbuf, (long)bufpages * PAGE_SIZE, (long)bufpages * (PAGE_SIZE / 1024)); 975df930be7Sderaadt 976df930be7Sderaadt /* 977df930be7Sderaadt * Set up buffers, so they can be used to read disk labels. 978df930be7Sderaadt */ 979df930be7Sderaadt bufinit(); 980df930be7Sderaadt 981df930be7Sderaadt /* 982df930be7Sderaadt * Configure the system. 983df930be7Sderaadt */ 98441033391Sderaadt if (boothowto & RB_CONFIG) { 98541033391Sderaadt #ifdef BOOT_CONFIG 98641033391Sderaadt user_config(); 98741033391Sderaadt #else 98841033391Sderaadt printf("kernel does not support -c; continuing..\n"); 98941033391Sderaadt #endif 99041033391Sderaadt } 99150ce9ee0Sniklas 99250ce9ee0Sniklas /* 993aed035abSart * Set up the HWPCB so that it's safe to configure secondary 994aed035abSart * CPUs. 99550ce9ee0Sniklas */ 996aed035abSart hwrpb_primary_init(); 997aed035abSart } 998aed035abSart 999aed035abSart /* 1000aed035abSart * Retrieve the platform name from the DSR. 1001aed035abSart */ 1002aed035abSart const char * 1003aed035abSart alpha_dsr_sysname() 1004aed035abSart { 1005aed035abSart struct dsrdb *dsr; 1006aed035abSart const char *sysname; 1007aed035abSart 1008aed035abSart /* 1009aed035abSart * DSR does not exist on early HWRPB versions. 1010aed035abSart */ 1011aed035abSart if (hwrpb->rpb_version < HWRPB_DSRDB_MINVERS) 1012aed035abSart return (NULL); 1013aed035abSart 1014aed035abSart dsr = (struct dsrdb *)(((caddr_t)hwrpb) + hwrpb->rpb_dsrdb_off); 1015aed035abSart sysname = (const char *)((caddr_t)dsr + (dsr->dsr_sysname_off + 1016aed035abSart sizeof(u_int64_t))); 1017aed035abSart return (sysname); 1018aed035abSart } 1019aed035abSart 1020aed035abSart /* 1021aed035abSart * Lookup the system specified system variation in the provided table, 1022aed035abSart * returning the model string on match. 1023aed035abSart */ 1024aed035abSart const char * 1025aed035abSart alpha_variation_name(variation, avtp) 1026aed035abSart u_int64_t variation; 1027aed035abSart const struct alpha_variation_table *avtp; 1028aed035abSart { 1029aed035abSart int i; 1030aed035abSart 1031aed035abSart for (i = 0; avtp[i].avt_model != NULL; i++) 1032aed035abSart if (avtp[i].avt_variation == variation) 1033aed035abSart return (avtp[i].avt_model); 1034aed035abSart return (NULL); 1035aed035abSart } 1036aed035abSart 1037aed035abSart /* 1038aed035abSart * Generate a default platform name based for unknown system variations. 1039aed035abSart */ 1040aed035abSart const char * 1041aed035abSart alpha_unknown_sysname() 1042aed035abSart { 1043aed035abSart static char s[128]; /* safe size */ 1044aed035abSart 1045d5eb2d9aSderaadt snprintf(s, sizeof s, "%s family, unknown model variation 0x%lx", 1046aed035abSart platform.family, hwrpb->rpb_variation & SV_ST_MASK); 1047aed035abSart return ((const char *)s); 1048df930be7Sderaadt } 1049df930be7Sderaadt 105050ce9ee0Sniklas void 1051df930be7Sderaadt identifycpu() 1052df930be7Sderaadt { 1053aed035abSart char *s; 1054df930be7Sderaadt 1055df930be7Sderaadt /* 1056df930be7Sderaadt * print out CPU identification information. 1057df930be7Sderaadt */ 1058aed035abSart printf("%s", cpu_model); 1059aed035abSart for(s = cpu_model; *s; ++s) 1060aed035abSart if(strncasecmp(s, "MHz", 3) == 0) 1061aed035abSart goto skipMHz; 1062aed035abSart printf(", %ldMHz", hwrpb->rpb_cc_freq / 1000000); 1063aed035abSart skipMHz: 1064aed035abSart printf("\n"); 106550ce9ee0Sniklas printf("%ld byte page size, %d processor%s.\n", 10662586fa93Smiod hwrpb->rpb_page_size, alpha_cpus, alpha_cpus == 1 ? "" : "s"); 1067df930be7Sderaadt #if 0 1068df930be7Sderaadt /* this isn't defined for any systems that we run on? */ 1069df930be7Sderaadt printf("serial number 0x%lx 0x%lx\n", 1070df930be7Sderaadt ((long *)hwrpb->rpb_ssn)[0], ((long *)hwrpb->rpb_ssn)[1]); 1071df930be7Sderaadt 1072df930be7Sderaadt /* and these aren't particularly useful! */ 1073df930be7Sderaadt printf("variation: 0x%lx, revision 0x%lx\n", 1074df930be7Sderaadt hwrpb->rpb_variation, *(long *)hwrpb->rpb_revision); 1075df930be7Sderaadt #endif 1076df930be7Sderaadt } 1077df930be7Sderaadt 1078df930be7Sderaadt int waittime = -1; 1079df930be7Sderaadt struct pcb dumppcb; 1080df930be7Sderaadt 1081417eba8cSderaadt void 1082aed035abSart boot(howto) 1083df930be7Sderaadt int howto; 1084df930be7Sderaadt { 1085aed035abSart #if defined(MULTIPROCESSOR) 1086aed035abSart #if 0 /* XXX See below. */ 1087aed035abSart u_long cpu_id; 1088aed035abSart #endif 1089aed035abSart #endif 1090aed035abSart 1091aed035abSart #if defined(MULTIPROCESSOR) 1092aed035abSart /* We must be running on the primary CPU. */ 1093aed035abSart if (alpha_pal_whami() != hwrpb->rpb_primary_cpu_id) 1094aed035abSart panic("cpu_reboot: not on primary CPU!"); 1095aed035abSart #endif 1096aed035abSart 1097df930be7Sderaadt /* If system is cold, just halt. */ 1098df930be7Sderaadt if (cold) { 1099c9ad5066Stom /* (Unless the user explicitly asked for reboot.) */ 1100c9ad5066Stom if ((howto & RB_USERREQ) == 0) 1101df930be7Sderaadt howto |= RB_HALT; 1102df930be7Sderaadt goto haltsys; 1103df930be7Sderaadt } 1104df930be7Sderaadt 110550ce9ee0Sniklas /* If "always halt" was specified as a boot flag, obey. */ 110650ce9ee0Sniklas if ((boothowto & RB_HALT) != 0) 110750ce9ee0Sniklas howto |= RB_HALT; 110850ce9ee0Sniklas 1109df930be7Sderaadt boothowto = howto; 1110df930be7Sderaadt if ((howto & RB_NOSYNC) == 0 && waittime < 0) { 1111df930be7Sderaadt waittime = 0; 1112df930be7Sderaadt vfs_shutdown(); 1113df930be7Sderaadt /* 1114df930be7Sderaadt * If we've been adjusting the clock, the todr 11152417125dSmiod * will be out of synch; adjust it now unless 11162417125dSmiod * the system has been sitting in ddb. 1117df930be7Sderaadt */ 11182417125dSmiod if ((howto & RB_TIMEBAD) == 0) { 1119df930be7Sderaadt resettodr(); 11202417125dSmiod } else { 11212417125dSmiod printf("WARNING: not updating battery clock\n"); 11222417125dSmiod } 1123df930be7Sderaadt } 1124df930be7Sderaadt 1125df930be7Sderaadt /* Disable interrupts. */ 1126df930be7Sderaadt splhigh(); 1127df930be7Sderaadt 1128df930be7Sderaadt /* If rebooting and a dump is requested do it. */ 112950ce9ee0Sniklas if (howto & RB_DUMP) 1130df930be7Sderaadt dumpsys(); 1131df930be7Sderaadt 113234fbf6deSderaadt haltsys: 113334fbf6deSderaadt 1134df930be7Sderaadt /* run any shutdown hooks */ 1135df930be7Sderaadt doshutdownhooks(); 1136df930be7Sderaadt 1137aed035abSart #if defined(MULTIPROCESSOR) 1138aed035abSart #if 0 /* XXX doesn't work when called from here?! */ 1139aed035abSart /* Kill off any secondary CPUs. */ 1140aed035abSart for (cpu_id = 0; cpu_id < hwrpb->rpb_pcs_cnt; cpu_id++) { 1141aed035abSart if (cpu_id == hwrpb->rpb_primary_cpu_id || 1142aed035abSart cpu_info[cpu_id].ci_softc == NULL) 1143aed035abSart continue; 1144aed035abSart cpu_halt_secondary(cpu_id); 1145aed035abSart } 1146aed035abSart #endif 1147aed035abSart #endif 1148aed035abSart 1149df930be7Sderaadt #ifdef BOOTKEY 1150df930be7Sderaadt printf("hit any key to %s...\n", howto & RB_HALT ? "halt" : "reboot"); 1151aed035abSart cnpollc(1); /* for proper keyboard command handling */ 1152df930be7Sderaadt cngetc(); 1153aed035abSart cnpollc(0); 1154df930be7Sderaadt printf("\n"); 1155df930be7Sderaadt #endif 1156df930be7Sderaadt 1157aed035abSart /* Finally, powerdown/halt/reboot the system. */ 1158aed035abSart if ((howto & RB_POWERDOWN) == RB_POWERDOWN && 1159aed035abSart platform.powerdown != NULL) { 1160aed035abSart (*platform.powerdown)(); 1161aed035abSart printf("WARNING: powerdown failed!\n"); 1162aed035abSart } 1163df930be7Sderaadt printf("%s\n\n", howto & RB_HALT ? "halted." : "rebooting..."); 1164df930be7Sderaadt prom_halt(howto & RB_HALT); 1165df930be7Sderaadt /*NOTREACHED*/ 1166df930be7Sderaadt } 1167df930be7Sderaadt 1168df930be7Sderaadt /* 1169df930be7Sderaadt * These variables are needed by /sbin/savecore 1170df930be7Sderaadt */ 1171df930be7Sderaadt u_long dumpmag = 0x8fca0101; /* magic number */ 1172df930be7Sderaadt int dumpsize = 0; /* pages */ 1173df930be7Sderaadt long dumplo = 0; /* blocks */ 1174df930be7Sderaadt 1175df930be7Sderaadt /* 117650ce9ee0Sniklas * cpu_dumpsize: calculate size of machine-dependent kernel core dump headers. 117750ce9ee0Sniklas */ 117850ce9ee0Sniklas int 117950ce9ee0Sniklas cpu_dumpsize() 118050ce9ee0Sniklas { 118150ce9ee0Sniklas int size; 118250ce9ee0Sniklas 1183aed035abSart size = ALIGN(sizeof(kcore_seg_t)) + ALIGN(sizeof(cpu_kcore_hdr_t)) + 1184aed035abSart ALIGN(mem_cluster_cnt * sizeof(phys_ram_seg_t)); 118550ce9ee0Sniklas if (roundup(size, dbtob(1)) != dbtob(1)) 118650ce9ee0Sniklas return -1; 118750ce9ee0Sniklas 118850ce9ee0Sniklas return (1); 118950ce9ee0Sniklas } 119050ce9ee0Sniklas 119150ce9ee0Sniklas /* 1192aed035abSart * cpu_dump_mempagecnt: calculate size of RAM (in pages) to be dumped. 1193aed035abSart */ 1194aed035abSart u_long 1195aed035abSart cpu_dump_mempagecnt() 1196aed035abSart { 1197aed035abSart u_long i, n; 1198aed035abSart 1199aed035abSart n = 0; 1200aed035abSart for (i = 0; i < mem_cluster_cnt; i++) 1201aed035abSart n += atop(mem_clusters[i].size); 1202aed035abSart return (n); 1203aed035abSart } 1204aed035abSart 1205aed035abSart /* 120650ce9ee0Sniklas * cpu_dump: dump machine-dependent kernel core dump headers. 120750ce9ee0Sniklas */ 120850ce9ee0Sniklas int 120950ce9ee0Sniklas cpu_dump() 121050ce9ee0Sniklas { 1211c4071fd1Smillert int (*dump)(dev_t, daddr_t, caddr_t, size_t); 1212aed035abSart char buf[dbtob(1)]; 121350ce9ee0Sniklas kcore_seg_t *segp; 121450ce9ee0Sniklas cpu_kcore_hdr_t *cpuhdrp; 1215aed035abSart phys_ram_seg_t *memsegp; 1216aed035abSart int i; 121750ce9ee0Sniklas 121850ce9ee0Sniklas dump = bdevsw[major(dumpdev)].d_dump; 121950ce9ee0Sniklas 1220aed035abSart bzero(buf, sizeof buf); 122150ce9ee0Sniklas segp = (kcore_seg_t *)buf; 1222aed035abSart cpuhdrp = (cpu_kcore_hdr_t *)&buf[ALIGN(sizeof(*segp))]; 1223aed035abSart memsegp = (phys_ram_seg_t *)&buf[ALIGN(sizeof(*segp)) + 1224aed035abSart ALIGN(sizeof(*cpuhdrp))]; 122550ce9ee0Sniklas 122650ce9ee0Sniklas /* 122750ce9ee0Sniklas * Generate a segment header. 122850ce9ee0Sniklas */ 122950ce9ee0Sniklas CORE_SETMAGIC(*segp, KCORE_MAGIC, MID_MACHINE, CORE_CPU); 123050ce9ee0Sniklas segp->c_size = dbtob(1) - ALIGN(sizeof(*segp)); 123150ce9ee0Sniklas 123250ce9ee0Sniklas /* 1233aed035abSart * Add the machine-dependent header info. 123450ce9ee0Sniklas */ 1235aed035abSart cpuhdrp->lev1map_pa = ALPHA_K0SEG_TO_PHYS((vaddr_t)kernel_lev1map); 123650ce9ee0Sniklas cpuhdrp->page_size = PAGE_SIZE; 1237aed035abSart cpuhdrp->nmemsegs = mem_cluster_cnt; 1238aed035abSart 1239aed035abSart /* 1240aed035abSart * Fill in the memory segment descriptors. 1241aed035abSart */ 1242aed035abSart for (i = 0; i < mem_cluster_cnt; i++) { 1243aed035abSart memsegp[i].start = mem_clusters[i].start; 1244aed035abSart memsegp[i].size = mem_clusters[i].size & ~PAGE_MASK; 1245aed035abSart } 124650ce9ee0Sniklas 124750ce9ee0Sniklas return (dump(dumpdev, dumplo, (caddr_t)buf, dbtob(1))); 124850ce9ee0Sniklas } 124950ce9ee0Sniklas 125050ce9ee0Sniklas /* 1251aed035abSart * This is called by main to set dumplo and dumpsize. 1252194dd68bSbrad * Dumps always skip the first PAGE_SIZE of disk space 1253df930be7Sderaadt * in case there might be a disk label stored there. 1254df930be7Sderaadt * If there is extra space, put dump at the end to 1255df930be7Sderaadt * reduce the chance that swapping trashes it. 1256df930be7Sderaadt */ 1257df930be7Sderaadt void 1258df930be7Sderaadt dumpconf() 1259df930be7Sderaadt { 126050ce9ee0Sniklas int nblks, dumpblks; /* size of dump area */ 1261df930be7Sderaadt int maj; 1262df930be7Sderaadt 1263df930be7Sderaadt if (dumpdev == NODEV) 126450ce9ee0Sniklas goto bad; 1265df930be7Sderaadt maj = major(dumpdev); 1266df930be7Sderaadt if (maj < 0 || maj >= nblkdev) 1267df930be7Sderaadt panic("dumpconf: bad dumpdev=0x%x", dumpdev); 1268df930be7Sderaadt if (bdevsw[maj].d_psize == NULL) 126950ce9ee0Sniklas goto bad; 1270df930be7Sderaadt nblks = (*bdevsw[maj].d_psize)(dumpdev); 1271df930be7Sderaadt if (nblks <= ctod(1)) 127250ce9ee0Sniklas goto bad; 127350ce9ee0Sniklas 127450ce9ee0Sniklas dumpblks = cpu_dumpsize(); 127550ce9ee0Sniklas if (dumpblks < 0) 127650ce9ee0Sniklas goto bad; 1277aed035abSart dumpblks += ctod(cpu_dump_mempagecnt()); 127850ce9ee0Sniklas 127950ce9ee0Sniklas /* If dump won't fit (incl. room for possible label), punt. */ 128050ce9ee0Sniklas if (dumpblks > (nblks - ctod(1))) 128150ce9ee0Sniklas goto bad; 128250ce9ee0Sniklas 128350ce9ee0Sniklas /* Put dump at end of partition */ 128450ce9ee0Sniklas dumplo = nblks - dumpblks; 128550ce9ee0Sniklas 128650ce9ee0Sniklas /* dumpsize is in page units, and doesn't include headers. */ 1287aed035abSart dumpsize = cpu_dump_mempagecnt(); 1288df930be7Sderaadt return; 1289df930be7Sderaadt 129050ce9ee0Sniklas bad: 129150ce9ee0Sniklas dumpsize = 0; 129250ce9ee0Sniklas return; 1293df930be7Sderaadt } 1294df930be7Sderaadt 1295df930be7Sderaadt /* 129650ce9ee0Sniklas * Dump the kernel's image to the swap partition. 1297df930be7Sderaadt */ 1298194dd68bSbrad #define BYTES_PER_DUMP PAGE_SIZE 129950ce9ee0Sniklas 1300df930be7Sderaadt void 1301df930be7Sderaadt dumpsys() 1302df930be7Sderaadt { 1303aed035abSart u_long totalbytesleft, bytes, i, n, memcl; 1304aed035abSart u_long maddr; 1305aed035abSart int psize; 130650ce9ee0Sniklas daddr_t blkno; 1307c4071fd1Smillert int (*dump)(dev_t, daddr_t, caddr_t, size_t); 130850ce9ee0Sniklas int error; 1309067cbd75Sderaadt extern int msgbufmapped; 1310df930be7Sderaadt 131150ce9ee0Sniklas /* Save registers. */ 131250ce9ee0Sniklas savectx(&dumppcb); 131350ce9ee0Sniklas 131450ce9ee0Sniklas msgbufmapped = 0; /* don't record dump msgs in msgbuf */ 1315df930be7Sderaadt if (dumpdev == NODEV) 1316df930be7Sderaadt return; 131750ce9ee0Sniklas 131850ce9ee0Sniklas /* 131950ce9ee0Sniklas * For dumps during autoconfiguration, 132050ce9ee0Sniklas * if dump device has already configured... 132150ce9ee0Sniklas */ 1322df930be7Sderaadt if (dumpsize == 0) 132350ce9ee0Sniklas dumpconf(); 132450ce9ee0Sniklas if (dumplo <= 0) { 1325aed035abSart printf("\ndump to dev %u,%u not possible\n", major(dumpdev), 1326aed035abSart minor(dumpdev)); 1327df930be7Sderaadt return; 1328df930be7Sderaadt } 1329aed035abSart printf("\ndumping to dev %u,%u offset %ld\n", major(dumpdev), 1330aed035abSart minor(dumpdev), dumplo); 1331df930be7Sderaadt 133250ce9ee0Sniklas psize = (*bdevsw[major(dumpdev)].d_psize)(dumpdev); 1333df930be7Sderaadt printf("dump "); 133450ce9ee0Sniklas if (psize == -1) { 133550ce9ee0Sniklas printf("area unavailable\n"); 133650ce9ee0Sniklas return; 133750ce9ee0Sniklas } 133850ce9ee0Sniklas 133950ce9ee0Sniklas /* XXX should purge all outstanding keystrokes. */ 134050ce9ee0Sniklas 134150ce9ee0Sniklas if ((error = cpu_dump()) != 0) 134250ce9ee0Sniklas goto err; 134350ce9ee0Sniklas 1344aed035abSart totalbytesleft = ptoa(cpu_dump_mempagecnt()); 134550ce9ee0Sniklas blkno = dumplo + cpu_dumpsize(); 134650ce9ee0Sniklas dump = bdevsw[major(dumpdev)].d_dump; 134750ce9ee0Sniklas error = 0; 1348aed035abSart 1349aed035abSart for (memcl = 0; memcl < mem_cluster_cnt; memcl++) { 1350aed035abSart maddr = mem_clusters[memcl].start; 1351aed035abSart bytes = mem_clusters[memcl].size & ~PAGE_MASK; 1352aed035abSart 1353aed035abSart for (i = 0; i < bytes; i += n, totalbytesleft -= n) { 135450ce9ee0Sniklas 135550ce9ee0Sniklas /* Print out how many MBs we to go. */ 1356aed035abSart if ((totalbytesleft % (1024*1024)) == 0) 1357aed035abSart printf("%ld ", totalbytesleft / (1024 * 1024)); 135850ce9ee0Sniklas 135950ce9ee0Sniklas /* Limit size for next transfer. */ 1360aed035abSart n = bytes - i; 136150ce9ee0Sniklas if (n > BYTES_PER_DUMP) 136250ce9ee0Sniklas n = BYTES_PER_DUMP; 136350ce9ee0Sniklas 136450ce9ee0Sniklas error = (*dump)(dumpdev, blkno, 136550ce9ee0Sniklas (caddr_t)ALPHA_PHYS_TO_K0SEG(maddr), n); 136650ce9ee0Sniklas if (error) 1367aed035abSart goto err; 136850ce9ee0Sniklas maddr += n; 136950ce9ee0Sniklas blkno += btodb(n); /* XXX? */ 137050ce9ee0Sniklas 137150ce9ee0Sniklas /* XXX should look for keystrokes, to cancel. */ 137250ce9ee0Sniklas } 1373aed035abSart } 137450ce9ee0Sniklas 137550ce9ee0Sniklas err: 137650ce9ee0Sniklas switch (error) { 1377a37778bcSderaadt #ifdef DEBUG 1378df930be7Sderaadt case ENXIO: 1379df930be7Sderaadt printf("device bad\n"); 1380df930be7Sderaadt break; 1381df930be7Sderaadt 1382df930be7Sderaadt case EFAULT: 1383df930be7Sderaadt printf("device not ready\n"); 1384df930be7Sderaadt break; 1385df930be7Sderaadt 1386df930be7Sderaadt case EINVAL: 1387df930be7Sderaadt printf("area improper\n"); 1388df930be7Sderaadt break; 1389df930be7Sderaadt 1390df930be7Sderaadt case EIO: 1391df930be7Sderaadt printf("i/o error\n"); 1392df930be7Sderaadt break; 1393df930be7Sderaadt 1394df930be7Sderaadt case EINTR: 1395df930be7Sderaadt printf("aborted from console\n"); 1396df930be7Sderaadt break; 1397a37778bcSderaadt #endif /* DEBUG */ 139850ce9ee0Sniklas case 0: 1399df930be7Sderaadt printf("succeeded\n"); 1400df930be7Sderaadt break; 140150ce9ee0Sniklas 140250ce9ee0Sniklas default: 140350ce9ee0Sniklas printf("error %d\n", error); 140450ce9ee0Sniklas break; 1405df930be7Sderaadt } 1406df930be7Sderaadt printf("\n\n"); 1407df930be7Sderaadt delay(1000); 1408df930be7Sderaadt } 1409df930be7Sderaadt 1410df930be7Sderaadt void 1411df930be7Sderaadt frametoreg(framep, regp) 1412df930be7Sderaadt struct trapframe *framep; 1413df930be7Sderaadt struct reg *regp; 1414df930be7Sderaadt { 1415df930be7Sderaadt 1416df930be7Sderaadt regp->r_regs[R_V0] = framep->tf_regs[FRAME_V0]; 1417df930be7Sderaadt regp->r_regs[R_T0] = framep->tf_regs[FRAME_T0]; 1418df930be7Sderaadt regp->r_regs[R_T1] = framep->tf_regs[FRAME_T1]; 1419df930be7Sderaadt regp->r_regs[R_T2] = framep->tf_regs[FRAME_T2]; 1420df930be7Sderaadt regp->r_regs[R_T3] = framep->tf_regs[FRAME_T3]; 1421df930be7Sderaadt regp->r_regs[R_T4] = framep->tf_regs[FRAME_T4]; 1422df930be7Sderaadt regp->r_regs[R_T5] = framep->tf_regs[FRAME_T5]; 1423df930be7Sderaadt regp->r_regs[R_T6] = framep->tf_regs[FRAME_T6]; 1424df930be7Sderaadt regp->r_regs[R_T7] = framep->tf_regs[FRAME_T7]; 1425df930be7Sderaadt regp->r_regs[R_S0] = framep->tf_regs[FRAME_S0]; 1426df930be7Sderaadt regp->r_regs[R_S1] = framep->tf_regs[FRAME_S1]; 1427df930be7Sderaadt regp->r_regs[R_S2] = framep->tf_regs[FRAME_S2]; 1428df930be7Sderaadt regp->r_regs[R_S3] = framep->tf_regs[FRAME_S3]; 1429df930be7Sderaadt regp->r_regs[R_S4] = framep->tf_regs[FRAME_S4]; 1430df930be7Sderaadt regp->r_regs[R_S5] = framep->tf_regs[FRAME_S5]; 1431df930be7Sderaadt regp->r_regs[R_S6] = framep->tf_regs[FRAME_S6]; 143250ce9ee0Sniklas regp->r_regs[R_A0] = framep->tf_regs[FRAME_A0]; 143350ce9ee0Sniklas regp->r_regs[R_A1] = framep->tf_regs[FRAME_A1]; 143450ce9ee0Sniklas regp->r_regs[R_A2] = framep->tf_regs[FRAME_A2]; 1435df930be7Sderaadt regp->r_regs[R_A3] = framep->tf_regs[FRAME_A3]; 1436df930be7Sderaadt regp->r_regs[R_A4] = framep->tf_regs[FRAME_A4]; 1437df930be7Sderaadt regp->r_regs[R_A5] = framep->tf_regs[FRAME_A5]; 1438df930be7Sderaadt regp->r_regs[R_T8] = framep->tf_regs[FRAME_T8]; 1439df930be7Sderaadt regp->r_regs[R_T9] = framep->tf_regs[FRAME_T9]; 1440df930be7Sderaadt regp->r_regs[R_T10] = framep->tf_regs[FRAME_T10]; 1441df930be7Sderaadt regp->r_regs[R_T11] = framep->tf_regs[FRAME_T11]; 1442df930be7Sderaadt regp->r_regs[R_RA] = framep->tf_regs[FRAME_RA]; 1443df930be7Sderaadt regp->r_regs[R_T12] = framep->tf_regs[FRAME_T12]; 1444df930be7Sderaadt regp->r_regs[R_AT] = framep->tf_regs[FRAME_AT]; 144550ce9ee0Sniklas regp->r_regs[R_GP] = framep->tf_regs[FRAME_GP]; 144650ce9ee0Sniklas /* regp->r_regs[R_SP] = framep->tf_regs[FRAME_SP]; XXX */ 1447df930be7Sderaadt regp->r_regs[R_ZERO] = 0; 1448df930be7Sderaadt } 1449df930be7Sderaadt 1450df930be7Sderaadt void 1451df930be7Sderaadt regtoframe(regp, framep) 1452df930be7Sderaadt struct reg *regp; 1453df930be7Sderaadt struct trapframe *framep; 1454df930be7Sderaadt { 1455df930be7Sderaadt 1456df930be7Sderaadt framep->tf_regs[FRAME_V0] = regp->r_regs[R_V0]; 1457df930be7Sderaadt framep->tf_regs[FRAME_T0] = regp->r_regs[R_T0]; 1458df930be7Sderaadt framep->tf_regs[FRAME_T1] = regp->r_regs[R_T1]; 1459df930be7Sderaadt framep->tf_regs[FRAME_T2] = regp->r_regs[R_T2]; 1460df930be7Sderaadt framep->tf_regs[FRAME_T3] = regp->r_regs[R_T3]; 1461df930be7Sderaadt framep->tf_regs[FRAME_T4] = regp->r_regs[R_T4]; 1462df930be7Sderaadt framep->tf_regs[FRAME_T5] = regp->r_regs[R_T5]; 1463df930be7Sderaadt framep->tf_regs[FRAME_T6] = regp->r_regs[R_T6]; 1464df930be7Sderaadt framep->tf_regs[FRAME_T7] = regp->r_regs[R_T7]; 1465df930be7Sderaadt framep->tf_regs[FRAME_S0] = regp->r_regs[R_S0]; 1466df930be7Sderaadt framep->tf_regs[FRAME_S1] = regp->r_regs[R_S1]; 1467df930be7Sderaadt framep->tf_regs[FRAME_S2] = regp->r_regs[R_S2]; 1468df930be7Sderaadt framep->tf_regs[FRAME_S3] = regp->r_regs[R_S3]; 1469df930be7Sderaadt framep->tf_regs[FRAME_S4] = regp->r_regs[R_S4]; 1470df930be7Sderaadt framep->tf_regs[FRAME_S5] = regp->r_regs[R_S5]; 1471df930be7Sderaadt framep->tf_regs[FRAME_S6] = regp->r_regs[R_S6]; 147250ce9ee0Sniklas framep->tf_regs[FRAME_A0] = regp->r_regs[R_A0]; 147350ce9ee0Sniklas framep->tf_regs[FRAME_A1] = regp->r_regs[R_A1]; 147450ce9ee0Sniklas framep->tf_regs[FRAME_A2] = regp->r_regs[R_A2]; 1475df930be7Sderaadt framep->tf_regs[FRAME_A3] = regp->r_regs[R_A3]; 1476df930be7Sderaadt framep->tf_regs[FRAME_A4] = regp->r_regs[R_A4]; 1477df930be7Sderaadt framep->tf_regs[FRAME_A5] = regp->r_regs[R_A5]; 1478df930be7Sderaadt framep->tf_regs[FRAME_T8] = regp->r_regs[R_T8]; 1479df930be7Sderaadt framep->tf_regs[FRAME_T9] = regp->r_regs[R_T9]; 1480df930be7Sderaadt framep->tf_regs[FRAME_T10] = regp->r_regs[R_T10]; 1481df930be7Sderaadt framep->tf_regs[FRAME_T11] = regp->r_regs[R_T11]; 1482df930be7Sderaadt framep->tf_regs[FRAME_RA] = regp->r_regs[R_RA]; 1483df930be7Sderaadt framep->tf_regs[FRAME_T12] = regp->r_regs[R_T12]; 1484df930be7Sderaadt framep->tf_regs[FRAME_AT] = regp->r_regs[R_AT]; 148550ce9ee0Sniklas framep->tf_regs[FRAME_GP] = regp->r_regs[R_GP]; 148650ce9ee0Sniklas /* framep->tf_regs[FRAME_SP] = regp->r_regs[R_SP]; XXX */ 1487df930be7Sderaadt /* ??? = regp->r_regs[R_ZERO]; */ 1488df930be7Sderaadt } 1489df930be7Sderaadt 1490df930be7Sderaadt void 1491df930be7Sderaadt printregs(regp) 1492df930be7Sderaadt struct reg *regp; 1493df930be7Sderaadt { 1494df930be7Sderaadt int i; 1495df930be7Sderaadt 1496df930be7Sderaadt for (i = 0; i < 32; i++) 1497df930be7Sderaadt printf("R%d:\t0x%016lx%s", i, regp->r_regs[i], 1498df930be7Sderaadt i & 1 ? "\n" : "\t"); 1499df930be7Sderaadt } 1500df930be7Sderaadt 1501df930be7Sderaadt void 1502df930be7Sderaadt regdump(framep) 1503df930be7Sderaadt struct trapframe *framep; 1504df930be7Sderaadt { 1505df930be7Sderaadt struct reg reg; 1506df930be7Sderaadt 1507df930be7Sderaadt frametoreg(framep, ®); 150850ce9ee0Sniklas reg.r_regs[R_SP] = alpha_pal_rdusp(); 150950ce9ee0Sniklas 1510df930be7Sderaadt printf("REGISTERS:\n"); 1511df930be7Sderaadt printregs(®); 1512df930be7Sderaadt } 1513df930be7Sderaadt 1514df930be7Sderaadt #ifdef DEBUG 1515df930be7Sderaadt int sigdebug = 0; 1516df930be7Sderaadt int sigpid = 0; 1517df930be7Sderaadt #define SDB_FOLLOW 0x01 1518df930be7Sderaadt #define SDB_KSTACK 0x02 1519df930be7Sderaadt #endif 1520df930be7Sderaadt 1521df930be7Sderaadt /* 1522df930be7Sderaadt * Send an interrupt to process. 1523df930be7Sderaadt */ 1524df930be7Sderaadt void 15255e1760a6Sderaadt sendsig(catcher, sig, mask, code, type, val) 1526df930be7Sderaadt sig_t catcher; 1527df930be7Sderaadt int sig, mask; 1528df930be7Sderaadt u_long code; 15295e1760a6Sderaadt int type; 15305e1760a6Sderaadt union sigval val; 1531df930be7Sderaadt { 1532df930be7Sderaadt struct proc *p = curproc; 1533df930be7Sderaadt struct sigcontext *scp, ksc; 1534df930be7Sderaadt struct trapframe *frame; 1535df930be7Sderaadt struct sigacts *psp = p->p_sigacts; 15362bf9c155Sderaadt int oonstack, fsize, rndfsize, kscsize; 15372bf9c155Sderaadt siginfo_t *sip, ksi; 1538df930be7Sderaadt 1539df930be7Sderaadt frame = p->p_md.md_tf; 1540df930be7Sderaadt oonstack = psp->ps_sigstk.ss_flags & SS_ONSTACK; 1541df930be7Sderaadt fsize = sizeof ksc; 1542df930be7Sderaadt rndfsize = ((fsize + 15) / 16) * 16; 15432bf9c155Sderaadt kscsize = rndfsize; 15442bf9c155Sderaadt if (psp->ps_siginfo & sigmask(sig)) { 15452bf9c155Sderaadt fsize += sizeof ksi; 15462bf9c155Sderaadt rndfsize = ((fsize + 15) / 16) * 16; 15472bf9c155Sderaadt } 154874652a67Sniklas 1549df930be7Sderaadt /* 1550df930be7Sderaadt * Allocate and validate space for the signal handler 1551df930be7Sderaadt * context. Note that if the stack is in P0 space, the 1552aed035abSart * call to uvm_grow() is a nop, and the useracc() check 1553df930be7Sderaadt * will fail if the process has not already allocated 1554df930be7Sderaadt * the space with a `brk'. 1555df930be7Sderaadt */ 1556df930be7Sderaadt if ((psp->ps_flags & SAS_ALTSTACK) && !oonstack && 1557df930be7Sderaadt (psp->ps_sigonstack & sigmask(sig))) { 15588bc2093aSderaadt scp = (struct sigcontext *)(psp->ps_sigstk.ss_sp + 1559df930be7Sderaadt psp->ps_sigstk.ss_size - rndfsize); 1560df930be7Sderaadt psp->ps_sigstk.ss_flags |= SS_ONSTACK; 1561df930be7Sderaadt } else 156250ce9ee0Sniklas scp = (struct sigcontext *)(alpha_pal_rdusp() - rndfsize); 1563df930be7Sderaadt if ((u_long)scp <= USRSTACK - ctob(p->p_vmspace->vm_ssize)) 1564aed035abSart (void)uvm_grow(p, (u_long)scp); 1565df930be7Sderaadt #ifdef DEBUG 1566df930be7Sderaadt if ((sigdebug & SDB_KSTACK) && p->p_pid == sigpid) 156750ce9ee0Sniklas printf("sendsig(%d): sig %d ssp %p usp %p\n", p->p_pid, 1568df930be7Sderaadt sig, &oonstack, scp); 1569df930be7Sderaadt #endif 1570df930be7Sderaadt 1571df930be7Sderaadt /* 1572df930be7Sderaadt * Build the signal context to be used by sigreturn. 1573df930be7Sderaadt */ 1574df930be7Sderaadt ksc.sc_onstack = oonstack; 1575df930be7Sderaadt ksc.sc_mask = mask; 157650ce9ee0Sniklas ksc.sc_pc = frame->tf_regs[FRAME_PC]; 157750ce9ee0Sniklas ksc.sc_ps = frame->tf_regs[FRAME_PS]; 1578df930be7Sderaadt 1579df930be7Sderaadt /* copy the registers. */ 1580df930be7Sderaadt frametoreg(frame, (struct reg *)ksc.sc_regs); 1581df930be7Sderaadt ksc.sc_regs[R_ZERO] = 0xACEDBADE; /* magic number */ 158250ce9ee0Sniklas ksc.sc_regs[R_SP] = alpha_pal_rdusp(); 1583df930be7Sderaadt 1584df930be7Sderaadt /* save the floating-point state, if necessary, then copy it. */ 1585433075b6Spvalchev if (p->p_addr->u_pcb.pcb_fpcpu != NULL) 1586433075b6Spvalchev fpusave_proc(p, 1); 1587df930be7Sderaadt ksc.sc_ownedfp = p->p_md.md_flags & MDP_FPUSED; 1588433075b6Spvalchev memcpy((struct fpreg *)ksc.sc_fpregs, &p->p_addr->u_pcb.pcb_fp, 1589df930be7Sderaadt sizeof(struct fpreg)); 1590433075b6Spvalchev #ifndef NO_IEEE 1591433075b6Spvalchev ksc.sc_fp_control = alpha_read_fp_c(p); 1592433075b6Spvalchev #else 1593433075b6Spvalchev ksc.sc_fp_control = 0; 1594433075b6Spvalchev #endif 1595433075b6Spvalchev memset(ksc.sc_reserved, 0, sizeof ksc.sc_reserved); /* XXX */ 1596433075b6Spvalchev memset(ksc.sc_xxx, 0, sizeof ksc.sc_xxx); /* XXX */ 1597df930be7Sderaadt 1598df930be7Sderaadt #ifdef COMPAT_OSF1 1599df930be7Sderaadt /* 1600df930be7Sderaadt * XXX Create an OSF/1-style sigcontext and associated goo. 1601df930be7Sderaadt */ 1602df930be7Sderaadt #endif 1603df930be7Sderaadt 16042bf9c155Sderaadt if (psp->ps_siginfo & sigmask(sig)) { 16052bf9c155Sderaadt initsiginfo(&ksi, sig, code, type, val); 16062bf9c155Sderaadt sip = (void *)scp + kscsize; 1607679ebc41Smiod if (copyout((caddr_t)&ksi, (caddr_t)sip, fsize - kscsize) != 0) 1608679ebc41Smiod goto trash; 1609aa540fb8Sart } else 1610aa540fb8Sart sip = NULL; 16112bf9c155Sderaadt 1612df930be7Sderaadt /* 1613df930be7Sderaadt * copy the frame out to userland. 1614df930be7Sderaadt */ 1615679ebc41Smiod if (copyout((caddr_t)&ksc, (caddr_t)scp, kscsize) != 0) { 1616679ebc41Smiod trash: 1617679ebc41Smiod #ifdef DEBUG 1618679ebc41Smiod if ((sigdebug & SDB_KSTACK) && p->p_pid == sigpid) 1619679ebc41Smiod printf("sendsig(%d): copyout failed on sig %d\n", 1620679ebc41Smiod p->p_pid, sig); 1621679ebc41Smiod #endif 1622679ebc41Smiod /* 1623679ebc41Smiod * Process has trashed its stack; give it an illegal 1624679ebc41Smiod * instruction to halt it in its tracks. 1625679ebc41Smiod */ 162686fd84b3Smiod sigexit(p, SIGILL); 162786fd84b3Smiod /* NOTREACHED */ 1628679ebc41Smiod } 1629df930be7Sderaadt #ifdef DEBUG 1630df930be7Sderaadt if (sigdebug & SDB_FOLLOW) 163150ce9ee0Sniklas printf("sendsig(%d): sig %d scp %p code %lx\n", p->p_pid, sig, 1632df930be7Sderaadt scp, code); 1633df930be7Sderaadt #endif 1634df930be7Sderaadt 1635df930be7Sderaadt /* 1636df930be7Sderaadt * Set up the registers to return to sigcode. 1637df930be7Sderaadt */ 16384a5480feSart frame->tf_regs[FRAME_PC] = p->p_sigcode; 163950ce9ee0Sniklas frame->tf_regs[FRAME_A0] = sig; 1640aa540fb8Sart frame->tf_regs[FRAME_A1] = (u_int64_t)sip; 164150ce9ee0Sniklas frame->tf_regs[FRAME_A2] = (u_int64_t)scp; 1642df930be7Sderaadt frame->tf_regs[FRAME_T12] = (u_int64_t)catcher; /* t12 is pv */ 164350ce9ee0Sniklas alpha_pal_wrusp((unsigned long)scp); 1644df930be7Sderaadt 1645df930be7Sderaadt #ifdef DEBUG 1646df930be7Sderaadt if (sigdebug & SDB_FOLLOW) 1647df930be7Sderaadt printf("sendsig(%d): pc %lx, catcher %lx\n", p->p_pid, 164850ce9ee0Sniklas frame->tf_regs[FRAME_PC], frame->tf_regs[FRAME_A3]); 1649df930be7Sderaadt if ((sigdebug & SDB_KSTACK) && p->p_pid == sigpid) 1650df930be7Sderaadt printf("sendsig(%d): sig %d returns\n", 1651df930be7Sderaadt p->p_pid, sig); 1652df930be7Sderaadt #endif 1653df930be7Sderaadt } 1654df930be7Sderaadt 1655df930be7Sderaadt /* 1656df930be7Sderaadt * System call to cleanup state after a signal 1657df930be7Sderaadt * has been taken. Reset signal mask and 1658df930be7Sderaadt * stack state from context left by sendsig (above). 1659df930be7Sderaadt * Return to previous pc and psl as specified by 1660df930be7Sderaadt * context left by sendsig. Check carefully to 1661df930be7Sderaadt * make sure that the user has not modified the 1662125cd19fSderaadt * psl to gain improper privileges or to cause 1663df930be7Sderaadt * a machine fault. 1664df930be7Sderaadt */ 1665df930be7Sderaadt /* ARGSUSED */ 1666df930be7Sderaadt int 1667df930be7Sderaadt sys_sigreturn(p, v, retval) 1668df930be7Sderaadt struct proc *p; 1669df930be7Sderaadt void *v; 1670df930be7Sderaadt register_t *retval; 1671df930be7Sderaadt { 1672df930be7Sderaadt struct sys_sigreturn_args /* { 1673df930be7Sderaadt syscallarg(struct sigcontext *) sigcntxp; 1674df930be7Sderaadt } */ *uap = v; 1675aa540fb8Sart struct sigcontext ksc; 167660959295Smartin #ifdef DEBUG 167760959295Smartin struct sigcontext *scp; 167860959295Smartin #endif 1679aa540fb8Sart int error; 1680df930be7Sderaadt 1681df930be7Sderaadt #ifdef DEBUG 1682df930be7Sderaadt if (sigdebug & SDB_FOLLOW) 168350ce9ee0Sniklas printf("sigreturn: pid %d, scp %p\n", p->p_pid, scp); 1684df930be7Sderaadt #endif 1685df930be7Sderaadt 1686df930be7Sderaadt /* 1687df930be7Sderaadt * Test and fetch the context structure. 1688df930be7Sderaadt * We grab it all at once for speed. 1689df930be7Sderaadt */ 1690aa540fb8Sart if ((error = copyin(SCARG(uap, sigcntxp), &ksc, sizeof(ksc))) != 0) 1691aa540fb8Sart return (error); 1692df930be7Sderaadt 1693df930be7Sderaadt if (ksc.sc_regs[R_ZERO] != 0xACEDBADE) /* magic number */ 1694df930be7Sderaadt return (EINVAL); 1695df930be7Sderaadt /* 1696df930be7Sderaadt * Restore the user-supplied information 1697df930be7Sderaadt */ 1698df930be7Sderaadt if (ksc.sc_onstack) 1699df930be7Sderaadt p->p_sigacts->ps_sigstk.ss_flags |= SS_ONSTACK; 1700df930be7Sderaadt else 1701df930be7Sderaadt p->p_sigacts->ps_sigstk.ss_flags &= ~SS_ONSTACK; 1702df930be7Sderaadt p->p_sigmask = ksc.sc_mask &~ sigcantmask; 1703df930be7Sderaadt 170450ce9ee0Sniklas p->p_md.md_tf->tf_regs[FRAME_PC] = ksc.sc_pc; 170550ce9ee0Sniklas p->p_md.md_tf->tf_regs[FRAME_PS] = 170650ce9ee0Sniklas (ksc.sc_ps | ALPHA_PSL_USERSET) & ~ALPHA_PSL_USERCLR; 1707df930be7Sderaadt 1708df930be7Sderaadt regtoframe((struct reg *)ksc.sc_regs, p->p_md.md_tf); 170950ce9ee0Sniklas alpha_pal_wrusp(ksc.sc_regs[R_SP]); 1710df930be7Sderaadt 1711df930be7Sderaadt /* XXX ksc.sc_ownedfp ? */ 1712433075b6Spvalchev if (p->p_addr->u_pcb.pcb_fpcpu != NULL) 1713433075b6Spvalchev fpusave_proc(p, 0); 1714433075b6Spvalchev memcpy(&p->p_addr->u_pcb.pcb_fp, (struct fpreg *)ksc.sc_fpregs, 1715df930be7Sderaadt sizeof(struct fpreg)); 1716433075b6Spvalchev #ifndef NO_IEEE 1717433075b6Spvalchev p->p_addr->u_pcb.pcb_fp.fpr_cr = ksc.sc_fpcr; 1718433075b6Spvalchev p->p_md.md_flags = ksc.sc_fp_control & MDP_FP_C; 1719433075b6Spvalchev #endif 1720df930be7Sderaadt 1721df930be7Sderaadt #ifdef DEBUG 1722df930be7Sderaadt if (sigdebug & SDB_FOLLOW) 1723df930be7Sderaadt printf("sigreturn(%d): returns\n", p->p_pid); 1724df930be7Sderaadt #endif 1725df930be7Sderaadt return (EJUSTRETURN); 1726df930be7Sderaadt } 1727df930be7Sderaadt 1728df930be7Sderaadt /* 1729df930be7Sderaadt * machine dependent system variables. 1730df930be7Sderaadt */ 173150ce9ee0Sniklas int 1732df930be7Sderaadt cpu_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 1733df930be7Sderaadt int *name; 1734df930be7Sderaadt u_int namelen; 1735df930be7Sderaadt void *oldp; 1736df930be7Sderaadt size_t *oldlenp; 1737df930be7Sderaadt void *newp; 1738df930be7Sderaadt size_t newlen; 1739df930be7Sderaadt struct proc *p; 1740df930be7Sderaadt { 1741df930be7Sderaadt dev_t consdev; 1742df930be7Sderaadt 174345e5a1a0Sart if (name[0] != CPU_CHIPSET && namelen != 1) 1744df930be7Sderaadt return (ENOTDIR); /* overloaded */ 1745df930be7Sderaadt 1746df930be7Sderaadt switch (name[0]) { 1747df930be7Sderaadt case CPU_CONSDEV: 1748df930be7Sderaadt if (cn_tab != NULL) 1749df930be7Sderaadt consdev = cn_tab->cn_dev; 1750df930be7Sderaadt else 1751df930be7Sderaadt consdev = NODEV; 1752df930be7Sderaadt return (sysctl_rdstruct(oldp, oldlenp, newp, &consdev, 1753df930be7Sderaadt sizeof consdev)); 1754417eba8cSderaadt 1755417eba8cSderaadt case CPU_ROOT_DEVICE: 1756aed035abSart return (sysctl_rdstring(oldp, oldlenp, newp, 1757aed035abSart root_device)); 1758a37778bcSderaadt #ifndef SMALL_KERNEL 175950ce9ee0Sniklas case CPU_UNALIGNED_PRINT: 176050ce9ee0Sniklas return (sysctl_int(oldp, oldlenp, newp, newlen, 176150ce9ee0Sniklas &alpha_unaligned_print)); 176250ce9ee0Sniklas 176350ce9ee0Sniklas case CPU_UNALIGNED_FIX: 176450ce9ee0Sniklas return (sysctl_int(oldp, oldlenp, newp, newlen, 176550ce9ee0Sniklas &alpha_unaligned_fix)); 176650ce9ee0Sniklas 176750ce9ee0Sniklas case CPU_UNALIGNED_SIGBUS: 176850ce9ee0Sniklas return (sysctl_int(oldp, oldlenp, newp, newlen, 176950ce9ee0Sniklas &alpha_unaligned_sigbus)); 177050ce9ee0Sniklas 17713a630e3fSniklas case CPU_BOOTED_KERNEL: 1772aed035abSart return (sysctl_rdstring(oldp, oldlenp, newp, 1773aed035abSart bootinfo.booted_kernel)); 17743a630e3fSniklas 177545e5a1a0Sart case CPU_CHIPSET: 177645e5a1a0Sart return (alpha_sysctl_chipset(name + 1, namelen - 1, oldp, 177745e5a1a0Sart oldlenp)); 1778a37778bcSderaadt #endif /* SMALL_KERNEL */ 1779433075b6Spvalchev 1780433075b6Spvalchev #ifndef NO_IEEE 1781433075b6Spvalchev case CPU_FP_SYNC_COMPLETE: 1782433075b6Spvalchev return (sysctl_int(oldp, oldlenp, newp, newlen, 1783433075b6Spvalchev &alpha_fp_sync_complete)); 1784433075b6Spvalchev #endif 178527626149Smatthieu case CPU_ALLOWAPERTURE: 178627626149Smatthieu #ifdef APERTURE 178727626149Smatthieu if (securelevel > 0) 17881546ceefSderaadt return (sysctl_int_lower(oldp, oldlenp, newp, newlen, 17891546ceefSderaadt &allowaperture)); 179027626149Smatthieu else 179127626149Smatthieu return (sysctl_int(oldp, oldlenp, newp, newlen, 179227626149Smatthieu &allowaperture)); 179327626149Smatthieu #else 179427626149Smatthieu return (sysctl_rdint(oldp, oldlenp, newp, 0)); 179527626149Smatthieu #endif 1796df930be7Sderaadt default: 1797df930be7Sderaadt return (EOPNOTSUPP); 1798df930be7Sderaadt } 1799df930be7Sderaadt /* NOTREACHED */ 1800df930be7Sderaadt } 1801df930be7Sderaadt 1802df930be7Sderaadt /* 1803df930be7Sderaadt * Set registers on exec. 1804df930be7Sderaadt */ 1805df930be7Sderaadt void 1806df930be7Sderaadt setregs(p, pack, stack, retval) 1807df930be7Sderaadt register struct proc *p; 1808df930be7Sderaadt struct exec_package *pack; 1809df930be7Sderaadt u_long stack; 1810df930be7Sderaadt register_t *retval; 1811df930be7Sderaadt { 1812df930be7Sderaadt struct trapframe *tfp = p->p_md.md_tf; 18133a630e3fSniklas #ifdef DEBUG 18143a630e3fSniklas int i; 18153a630e3fSniklas #endif 1816df930be7Sderaadt 1817df930be7Sderaadt #ifdef DEBUG 181850ce9ee0Sniklas /* 181950ce9ee0Sniklas * Crash and dump, if the user requested it. 182050ce9ee0Sniklas */ 182150ce9ee0Sniklas if (boothowto & RB_DUMP) 182250ce9ee0Sniklas panic("crash requested by boot flags"); 182350ce9ee0Sniklas #endif 182450ce9ee0Sniklas 182550ce9ee0Sniklas #ifdef DEBUG 182650ce9ee0Sniklas for (i = 0; i < FRAME_SIZE; i++) 1827df930be7Sderaadt tfp->tf_regs[i] = 0xbabefacedeadbeef; 1828df930be7Sderaadt #else 182950ce9ee0Sniklas bzero(tfp->tf_regs, FRAME_SIZE * sizeof tfp->tf_regs[0]); 1830df930be7Sderaadt #endif 1831df930be7Sderaadt bzero(&p->p_addr->u_pcb.pcb_fp, sizeof p->p_addr->u_pcb.pcb_fp); 183250ce9ee0Sniklas alpha_pal_wrusp(stack); 183350ce9ee0Sniklas tfp->tf_regs[FRAME_PS] = ALPHA_PSL_USERSET; 183450ce9ee0Sniklas tfp->tf_regs[FRAME_PC] = pack->ep_entry & ~3; 1835df930be7Sderaadt 183650ce9ee0Sniklas tfp->tf_regs[FRAME_A0] = stack; 183750ce9ee0Sniklas /* a1 and a2 already zeroed */ 183850ce9ee0Sniklas tfp->tf_regs[FRAME_T12] = tfp->tf_regs[FRAME_PC]; /* a.k.a. PV */ 183950ce9ee0Sniklas 184050ce9ee0Sniklas p->p_md.md_flags &= ~MDP_FPUSED; 1841433075b6Spvalchev #ifndef NO_IEEE 1842433075b6Spvalchev if (__predict_true((p->p_md.md_flags & IEEE_INHERIT) == 0)) { 1843433075b6Spvalchev p->p_md.md_flags &= ~MDP_FP_C; 1844433075b6Spvalchev p->p_addr->u_pcb.pcb_fp.fpr_cr = FPCR_DYN(FP_RN); 1845433075b6Spvalchev } 1846433075b6Spvalchev #endif 1847433075b6Spvalchev if (p->p_addr->u_pcb.pcb_fpcpu != NULL) 1848433075b6Spvalchev fpusave_proc(p, 0); 1849433075b6Spvalchev } 1850df930be7Sderaadt 1851433075b6Spvalchev /* 1852433075b6Spvalchev * Release the FPU. 1853433075b6Spvalchev */ 1854433075b6Spvalchev void 1855433075b6Spvalchev fpusave_cpu(struct cpu_info *ci, int save) 1856433075b6Spvalchev { 1857433075b6Spvalchev struct proc *p; 1858433075b6Spvalchev #if defined(MULTIPROCESSOR) 1859433075b6Spvalchev int s; 1860433075b6Spvalchev #endif 1861433075b6Spvalchev 1862433075b6Spvalchev KDASSERT(ci == curcpu()); 1863433075b6Spvalchev 1864433075b6Spvalchev #if defined(MULTIPROCESSOR) 1865433075b6Spvalchev atomic_setbits_ulong(&ci->ci_flags, CPUF_FPUSAVE); 1866433075b6Spvalchev #endif 1867433075b6Spvalchev 1868433075b6Spvalchev p = ci->ci_fpcurproc; 1869433075b6Spvalchev if (p == NULL) 1870433075b6Spvalchev goto out; 1871433075b6Spvalchev 1872433075b6Spvalchev if (save) { 1873433075b6Spvalchev alpha_pal_wrfen(1); 1874433075b6Spvalchev savefpstate(&p->p_addr->u_pcb.pcb_fp); 1875433075b6Spvalchev } 1876433075b6Spvalchev 1877433075b6Spvalchev alpha_pal_wrfen(0); 1878433075b6Spvalchev 1879433075b6Spvalchev p->p_addr->u_pcb.pcb_fpcpu = NULL; 1880433075b6Spvalchev ci->ci_fpcurproc = NULL; 1881433075b6Spvalchev 1882433075b6Spvalchev out: 1883433075b6Spvalchev #if defined(MULTIPROCESSOR) 1884433075b6Spvalchev atomic_clearbits_ulong(&ci->ci_flags, CPUF_FPUSAVE); 1885433075b6Spvalchev #endif 1886433075b6Spvalchev return; 1887433075b6Spvalchev } 1888433075b6Spvalchev 1889433075b6Spvalchev /* 1890433075b6Spvalchev * Synchronize FP state for this process. 1891433075b6Spvalchev */ 1892433075b6Spvalchev void 1893433075b6Spvalchev fpusave_proc(struct proc *p, int save) 1894433075b6Spvalchev { 1895433075b6Spvalchev struct cpu_info *ci = curcpu(); 1896433075b6Spvalchev struct cpu_info *oci; 1897433075b6Spvalchev #if defined(MULTIPROCESSOR) 1898433075b6Spvalchev u_long ipi = save ? ALPHA_IPI_SYNCH_FPU : ALPHA_IPI_DISCARD_FPU; 1899433075b6Spvalchev int s, spincount; 1900433075b6Spvalchev #endif 1901433075b6Spvalchev 1902433075b6Spvalchev KDASSERT(p->p_addr != NULL); 1903433075b6Spvalchev 1904433075b6Spvalchev oci = p->p_addr->u_pcb.pcb_fpcpu; 1905433075b6Spvalchev if (oci == NULL) { 1906433075b6Spvalchev return; 1907433075b6Spvalchev } 1908433075b6Spvalchev 1909433075b6Spvalchev #if defined(MULTIPROCESSOR) 1910433075b6Spvalchev if (oci == ci) { 1911433075b6Spvalchev KASSERT(ci->ci_fpcurproc == p); 1912433075b6Spvalchev fpusave_cpu(ci, save); 1913433075b6Spvalchev return; 1914433075b6Spvalchev } 1915433075b6Spvalchev 1916433075b6Spvalchev KASSERT(oci->ci_fpcurproc == p); 1917433075b6Spvalchev alpha_send_ipi(oci->ci_cpuid, ipi); 1918433075b6Spvalchev 1919433075b6Spvalchev spincount = 0; 1920433075b6Spvalchev while (p->p_addr->u_pcb.pcb_fpcpu != NULL) { 1921433075b6Spvalchev spincount++; 1922433075b6Spvalchev delay(1000); /* XXX */ 1923433075b6Spvalchev if (spincount > 10000) 1924433075b6Spvalchev panic("fpsave ipi didn't"); 1925433075b6Spvalchev } 1926433075b6Spvalchev #else 1927433075b6Spvalchev KASSERT(ci->ci_fpcurproc == p); 1928433075b6Spvalchev fpusave_cpu(ci, save); 1929433075b6Spvalchev #endif /* MULTIPROCESSOR */ 1930df930be7Sderaadt } 1931df930be7Sderaadt 1932df930be7Sderaadt int 1933df930be7Sderaadt spl0() 1934df930be7Sderaadt { 1935df930be7Sderaadt 1936aed035abSart if (ssir) { 1937aed035abSart (void) alpha_pal_swpipl(ALPHA_PSL_IPL_SOFT); 19382a2685f2Sart softintr_dispatch(); 1939aed035abSart } 1940df930be7Sderaadt 194150ce9ee0Sniklas return (alpha_pal_swpipl(ALPHA_PSL_IPL_0)); 1942df930be7Sderaadt } 1943df930be7Sderaadt 1944df930be7Sderaadt /* 1945df930be7Sderaadt * The following primitives manipulate the run queues. _whichqs tells which 1946df930be7Sderaadt * of the 32 queues _qs have processes in them. Setrunqueue puts processes 1947e464495eSniklas * into queues, Remrunqueue removes them from queues. The running process is 1948e464495eSniklas * on no queue, other processes are on a queue related to p->p_priority, 1949e464495eSniklas * divided by 4 actually to shrink the 0-127 range of priorities into the 32 1950e464495eSniklas * available queues. 1951df930be7Sderaadt */ 1952df930be7Sderaadt /* 1953df930be7Sderaadt * setrunqueue(p) 1954df930be7Sderaadt * proc *p; 1955df930be7Sderaadt * 1956df930be7Sderaadt * Call should be made at splclock(), and p->p_stat should be SRUN. 1957df930be7Sderaadt */ 1958df930be7Sderaadt 19592a2685f2Sart /* XXXART - grmble */ 19602a2685f2Sart #define sched_qs qs 19612a2685f2Sart #define sched_whichqs whichqs 19622a2685f2Sart 1963df930be7Sderaadt void 1964df930be7Sderaadt setrunqueue(p) 1965df930be7Sderaadt struct proc *p; 1966df930be7Sderaadt { 1967df930be7Sderaadt int bit; 1968df930be7Sderaadt 1969df930be7Sderaadt /* firewall: p->p_back must be NULL */ 1970df930be7Sderaadt if (p->p_back != NULL) 1971df930be7Sderaadt panic("setrunqueue"); 1972df930be7Sderaadt 1973df930be7Sderaadt bit = p->p_priority >> 2; 19742a2685f2Sart sched_whichqs |= (1 << bit); 19752a2685f2Sart p->p_forw = (struct proc *)&sched_qs[bit]; 19762a2685f2Sart p->p_back = sched_qs[bit].ph_rlink; 1977df930be7Sderaadt p->p_back->p_forw = p; 19782a2685f2Sart sched_qs[bit].ph_rlink = p; 1979df930be7Sderaadt } 1980df930be7Sderaadt 1981df930be7Sderaadt /* 1982e464495eSniklas * remrunqueue(p) 1983df930be7Sderaadt * 1984df930be7Sderaadt * Call should be made at splclock(). 1985df930be7Sderaadt */ 1986df930be7Sderaadt void 1987d3cbbad5Skstailey remrunqueue(p) 1988df930be7Sderaadt struct proc *p; 1989df930be7Sderaadt { 1990df930be7Sderaadt int bit; 1991df930be7Sderaadt 1992df930be7Sderaadt bit = p->p_priority >> 2; 19932a2685f2Sart if ((sched_whichqs & (1 << bit)) == 0) 1994d3cbbad5Skstailey panic("remrunqueue"); 1995df930be7Sderaadt 1996df930be7Sderaadt p->p_back->p_forw = p->p_forw; 1997df930be7Sderaadt p->p_forw->p_back = p->p_back; 1998df930be7Sderaadt p->p_back = NULL; /* for firewall checking. */ 1999df930be7Sderaadt 20002a2685f2Sart if ((struct proc *)&sched_qs[bit] == sched_qs[bit].ph_link) 20012a2685f2Sart sched_whichqs &= ~(1 << bit); 2002df930be7Sderaadt } 2003df930be7Sderaadt 2004df930be7Sderaadt /* 2005df930be7Sderaadt * Return the best possible estimate of the time in the timeval 2006df930be7Sderaadt * to which tvp points. Unfortunately, we can't read the hardware registers. 2007df930be7Sderaadt * We guarantee that the time will be greater than the value obtained by a 2008df930be7Sderaadt * previous call. 2009df930be7Sderaadt */ 2010df930be7Sderaadt void 2011df930be7Sderaadt microtime(tvp) 2012df930be7Sderaadt register struct timeval *tvp; 2013df930be7Sderaadt { 2014df930be7Sderaadt int s = splclock(); 2015df930be7Sderaadt static struct timeval lasttime; 2016df930be7Sderaadt 2017df930be7Sderaadt *tvp = time; 2018df930be7Sderaadt #ifdef notdef 2019df930be7Sderaadt tvp->tv_usec += clkread(); 20204c891e15Spjanzen while (tvp->tv_usec >= 1000000) { 2021df930be7Sderaadt tvp->tv_sec++; 2022df930be7Sderaadt tvp->tv_usec -= 1000000; 2023df930be7Sderaadt } 2024df930be7Sderaadt #endif 2025df930be7Sderaadt if (tvp->tv_sec == lasttime.tv_sec && 2026df930be7Sderaadt tvp->tv_usec <= lasttime.tv_usec && 20274c891e15Spjanzen (tvp->tv_usec = lasttime.tv_usec + 1) >= 1000000) { 2028df930be7Sderaadt tvp->tv_sec++; 2029df930be7Sderaadt tvp->tv_usec -= 1000000; 2030df930be7Sderaadt } 2031df930be7Sderaadt lasttime = *tvp; 2032df930be7Sderaadt splx(s); 2033df930be7Sderaadt } 2034df930be7Sderaadt 2035417eba8cSderaadt /* 2036417eba8cSderaadt * Wait "n" microseconds. 2037417eba8cSderaadt */ 203850ce9ee0Sniklas void 2039417eba8cSderaadt delay(n) 204050ce9ee0Sniklas unsigned long n; 2041417eba8cSderaadt { 20425d097e9eSmiod unsigned long pcc0, pcc1, curcycle, cycles, usec; 20435d097e9eSmiod 20445d097e9eSmiod if (n == 0) 20455d097e9eSmiod return; 20465d097e9eSmiod 20475d097e9eSmiod pcc0 = alpha_rpcc() & 0xffffffffUL; 20485d097e9eSmiod cycles = 0; 20495d097e9eSmiod usec = 0; 20505d097e9eSmiod 20515d097e9eSmiod while (usec <= n) { 20525d097e9eSmiod /* 20535d097e9eSmiod * Get the next CPU cycle count - assumes that we can not 20545d097e9eSmiod * have had more than one 32 bit overflow. 20555d097e9eSmiod */ 20565d097e9eSmiod pcc1 = alpha_rpcc() & 0xffffffffUL; 20575d097e9eSmiod if (pcc1 < pcc0) 20585d097e9eSmiod curcycle = (pcc1 + 0x100000000UL) - pcc0; 20595d097e9eSmiod else 20605d097e9eSmiod curcycle = pcc1 - pcc0; 2061417eba8cSderaadt 2062aed035abSart /* 20635d097e9eSmiod * We now have the number of processor cycles since we 20645d097e9eSmiod * last checked. Add the current cycle count to the 20655d097e9eSmiod * running total. If it's over cycles_per_usec, increment 20665d097e9eSmiod * the usec counter. 2067aed035abSart */ 20685d097e9eSmiod cycles += curcycle; 20695d097e9eSmiod while (cycles > cycles_per_usec) { 20705d097e9eSmiod usec++; 20715d097e9eSmiod cycles -= cycles_per_usec; 20725d097e9eSmiod } 20735d097e9eSmiod pcc0 = pcc1; 20745d097e9eSmiod } 2075417eba8cSderaadt } 2076417eba8cSderaadt 20779da89091Sderaadt #if defined(COMPAT_OSF1) 2078c4071fd1Smillert void cpu_exec_ecoff_setregs(struct proc *, struct exec_package *, 2079c4071fd1Smillert u_long, register_t *); 20803a630e3fSniklas 2081df930be7Sderaadt void 2082417eba8cSderaadt cpu_exec_ecoff_setregs(p, epp, stack, retval) 2083df930be7Sderaadt struct proc *p; 2084417eba8cSderaadt struct exec_package *epp; 2085df930be7Sderaadt u_long stack; 2086df930be7Sderaadt register_t *retval; 2087df930be7Sderaadt { 2088417eba8cSderaadt struct ecoff_exechdr *execp = (struct ecoff_exechdr *)epp->ep_hdr; 2089df930be7Sderaadt 2090417eba8cSderaadt setregs(p, epp, stack, retval); 209150ce9ee0Sniklas p->p_md.md_tf->tf_regs[FRAME_GP] = execp->a.gp_value; 2092df930be7Sderaadt } 2093df930be7Sderaadt 2094df930be7Sderaadt /* 2095df930be7Sderaadt * cpu_exec_ecoff_hook(): 2096df930be7Sderaadt * cpu-dependent ECOFF format hook for execve(). 2097df930be7Sderaadt * 2098df930be7Sderaadt * Do any machine-dependent diddling of the exec package when doing ECOFF. 2099df930be7Sderaadt * 2100df930be7Sderaadt */ 2101df930be7Sderaadt int 2102417eba8cSderaadt cpu_exec_ecoff_hook(p, epp) 2103df930be7Sderaadt struct proc *p; 2104df930be7Sderaadt struct exec_package *epp; 2105df930be7Sderaadt { 2106417eba8cSderaadt struct ecoff_exechdr *execp = (struct ecoff_exechdr *)epp->ep_hdr; 2107c3114d5bSericj extern struct emul emul_native; 2108aed035abSart int error; 21094e8700e2Sericj extern int osf1_exec_ecoff_hook(struct proc *, struct exec_package *); 2110df930be7Sderaadt 2111417eba8cSderaadt switch (execp->f.f_magic) { 2112df930be7Sderaadt #ifdef COMPAT_OSF1 2113df930be7Sderaadt case ECOFF_MAGIC_ALPHA: 21144e8700e2Sericj error = osf1_exec_ecoff_hook(p, epp); 2115df930be7Sderaadt break; 2116df930be7Sderaadt #endif 2117df930be7Sderaadt 211850ce9ee0Sniklas case ECOFF_MAGIC_NATIVE_ALPHA: 2119a2f8ce8dSderaadt epp->ep_emul = &emul_native; 2120aed035abSart error = 0; 2121df930be7Sderaadt break; 2122df930be7Sderaadt 2123df930be7Sderaadt default: 2124aed035abSart error = ENOEXEC; 2125df930be7Sderaadt } 2126aed035abSart return (error); 2127df930be7Sderaadt } 2128df930be7Sderaadt #endif 2129e464495eSniklas 2130aed035abSart int 2131aed035abSart alpha_pa_access(pa) 2132aed035abSart u_long pa; 2133aed035abSart { 2134aed035abSart int i; 2135aed035abSart 2136aed035abSart for (i = 0; i < mem_cluster_cnt; i++) { 2137aed035abSart if (pa < mem_clusters[i].start) 2138aed035abSart continue; 2139aed035abSart if ((pa - mem_clusters[i].start) >= 2140aed035abSart (mem_clusters[i].size & ~PAGE_MASK)) 2141aed035abSart continue; 2142aed035abSart return (mem_clusters[i].size & PAGE_MASK); /* prot */ 2143aed035abSart } 2144aed035abSart 2145aed035abSart /* 2146aed035abSart * Address is not a memory address. If we're secure, disallow 2147aed035abSart * access. Otherwise, grant read/write. 2148aed035abSart */ 2149aed035abSart if (securelevel > 0) 2150aed035abSart return (VM_PROT_NONE); 2151aed035abSart else 2152aed035abSart return (VM_PROT_READ | VM_PROT_WRITE); 2153aed035abSart } 2154aed035abSart 2155e464495eSniklas /* XXX XXX BEGIN XXX XXX */ 2156aed035abSart paddr_t alpha_XXX_dmamap_or; /* XXX */ 2157e464495eSniklas /* XXX */ 2158aed035abSart paddr_t /* XXX */ 2159e464495eSniklas alpha_XXX_dmamap(v) /* XXX */ 2160aed035abSart vaddr_t v; /* XXX */ 2161e464495eSniklas { /* XXX */ 2162e464495eSniklas /* XXX */ 2163e464495eSniklas return (vtophys(v) | alpha_XXX_dmamap_or); /* XXX */ 2164e464495eSniklas } /* XXX */ 2165e464495eSniklas /* XXX XXX END XXX XXX */ 2166