1*094fa01fSderaadt /* $OpenBSD: machdep.c,v 1.81 2003/05/11 19:41:08 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 * 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 maxmem; /* max memory per process */ 167df930be7Sderaadt 168df930be7Sderaadt int totalphysmem; /* total amount of physical memory in system */ 16974652a67Sniklas int physmem; /* physical mem used by OpenBSD + some rsvd */ 170df930be7Sderaadt int resvmem; /* amount of memory reserved for PROM */ 171df930be7Sderaadt int unusedmem; /* amount of memory for OS that we don't use */ 172df930be7Sderaadt int unknownmem; /* amount of memory with an unknown use */ 173df930be7Sderaadt 174df930be7Sderaadt int cputype; /* system type, from the RPB */ 175df930be7Sderaadt 1762a2685f2Sart int bootdev_debug = 0; /* patchable, or from DDB */ 1772a2685f2Sart 178df930be7Sderaadt /* 179df930be7Sderaadt * XXX We need an address to which we can assign things so that they 180df930be7Sderaadt * won't be optimized away because we didn't use the value. 181df930be7Sderaadt */ 182df930be7Sderaadt u_int32_t no_optimize; 183df930be7Sderaadt 184df930be7Sderaadt /* the following is used externally (sysctl_hw) */ 185aed035abSart char machine[] = MACHINE; /* from <machine/param.h> */ 186417eba8cSderaadt char cpu_model[128]; 187aed035abSart char root_device[17]; 188df930be7Sderaadt 189df930be7Sderaadt struct user *proc0paddr; 190df930be7Sderaadt 191df930be7Sderaadt /* Number of machine cycles per microsecond */ 192df930be7Sderaadt u_int64_t cycles_per_usec; 193df930be7Sderaadt 194df930be7Sderaadt /* number of cpus in the box. really! */ 195df930be7Sderaadt int ncpus; 196df930be7Sderaadt 197aed035abSart struct bootinfo_kernel bootinfo; 198aed035abSart 199aed035abSart /* For built-in TCDS */ 200aed035abSart #if defined(DEC_3000_300) || defined(DEC_3000_500) 201aed035abSart u_int8_t dec_3000_scsiid[2], dec_3000_scsifast[2]; 202aed035abSart #endif 203aed035abSart 204aed035abSart struct platform platform; 205417eba8cSderaadt 206417eba8cSderaadt /* for cpu_sysctl() */ 20750ce9ee0Sniklas int alpha_unaligned_print = 1; /* warn about unaligned accesses */ 20850ce9ee0Sniklas int alpha_unaligned_fix = 1; /* fix up unaligned accesses */ 209881c1eabSart int alpha_unaligned_sigbus = 1; /* SIGBUS on fixed-up accesses */ 210433075b6Spvalchev #ifndef NO_IEEE 211433075b6Spvalchev int alpha_fp_sync_complete = 0; /* fp fixup if sync even without /s */ 212433075b6Spvalchev #endif 21350ce9ee0Sniklas 214aed035abSart /* 215aed035abSart * XXX This should be dynamically sized, but we have the chicken-egg problem! 216aed035abSart * XXX it should also be larger than it is, because not all of the mddt 217aed035abSart * XXX clusters end up being used for VM. 218aed035abSart */ 219aed035abSart phys_ram_seg_t mem_clusters[VM_PHYSSEG_MAX]; /* low size bits overloaded */ 220aed035abSart int mem_cluster_cnt; 221aed035abSart 2223a630e3fSniklas void 223aed035abSart alpha_init(pfn, ptb, bim, bip, biv) 224df930be7Sderaadt u_long pfn; /* first free PFN number */ 225df930be7Sderaadt u_long ptb; /* PFN of current level 1 page table */ 226aed035abSart u_long bim; /* bootinfo magic */ 227aed035abSart u_long bip; /* bootinfo pointer */ 228aed035abSart u_long biv; /* bootinfo version */ 229df930be7Sderaadt { 230aed035abSart extern char kernel_text[], _end[]; 231df930be7Sderaadt struct mddt *mddtp; 232aed035abSart struct mddt_cluster *memc; 233df930be7Sderaadt int i, mddtweird; 234aed035abSart struct vm_physseg *vps; 235aed035abSart vaddr_t kernstart, kernend; 236aed035abSart paddr_t kernstartpfn, kernendpfn, pfn0, pfn1; 237aed035abSart vsize_t size; 238df930be7Sderaadt char *p; 239aed035abSart caddr_t v; 2402a2685f2Sart const char *bootinfo_msg; 241aed035abSart const struct cpuinit *c; 242aed035abSart extern caddr_t esym; 243aed035abSart struct cpu_info *ci; 244aed035abSart cpuid_t cpu_id; 245df930be7Sderaadt 246aed035abSart /* NO OUTPUT ALLOWED UNTIL FURTHER NOTICE */ 247f3914c62Sniklas 248df930be7Sderaadt /* 249aed035abSart * Turn off interrupts (not mchecks) and floating point. 250df930be7Sderaadt * Make sure the instruction and data streams are consistent. 251df930be7Sderaadt */ 252aed035abSart (void)alpha_pal_swpipl(ALPHA_PSL_IPL_HIGH); 25350ce9ee0Sniklas alpha_pal_wrfen(0); 25450ce9ee0Sniklas ALPHA_TBIA(); 25550ce9ee0Sniklas alpha_pal_imb(); 256df930be7Sderaadt 257aed035abSart cpu_id = cpu_number(); 258aed035abSart 259aed035abSart #if defined(MULTIPROCESSOR) 260df930be7Sderaadt /* 261aed035abSart * Set our SysValue to the address of our cpu_info structure. 262aed035abSart * Secondary processors do this in their spinup trampoline. 263df930be7Sderaadt */ 264aed035abSart alpha_pal_wrval((u_long)&cpu_info[cpu_id]); 265aed035abSart #endif 266aed035abSart 267aed035abSart ci = curcpu(); 268aed035abSart ci->ci_cpuid = cpu_id; 269aed035abSart 270aed035abSart /* 271aed035abSart * Get critical system information (if possible, from the 272aed035abSart * information provided by the boot program). 273aed035abSart */ 274aed035abSart bootinfo_msg = NULL; 275aed035abSart if (bim == BOOTINFO_MAGIC) { 276aed035abSart if (biv == 0) { /* backward compat */ 277aed035abSart biv = *(u_long *)bip; 278aed035abSart bip += 8; 279aed035abSart } 280aed035abSart switch (biv) { 281aed035abSart case 1: { 282aed035abSart struct bootinfo_v1 *v1p = (struct bootinfo_v1 *)bip; 283aed035abSart 284aed035abSart bootinfo.ssym = v1p->ssym; 285aed035abSart bootinfo.esym = v1p->esym; 286aed035abSart /* hwrpb may not be provided by boot block in v1 */ 287aed035abSart if (v1p->hwrpb != NULL) { 288aed035abSart bootinfo.hwrpb_phys = 289aed035abSart ((struct rpb *)v1p->hwrpb)->rpb_phys; 290aed035abSart bootinfo.hwrpb_size = v1p->hwrpbsize; 291aed035abSart } else { 292aed035abSart bootinfo.hwrpb_phys = 293aed035abSart ((struct rpb *)HWRPB_ADDR)->rpb_phys; 294aed035abSart bootinfo.hwrpb_size = 295aed035abSart ((struct rpb *)HWRPB_ADDR)->rpb_size; 296aed035abSart } 297aed035abSart bcopy(v1p->boot_flags, bootinfo.boot_flags, 298aed035abSart min(sizeof v1p->boot_flags, 299aed035abSart sizeof bootinfo.boot_flags)); 300aed035abSart bcopy(v1p->booted_kernel, bootinfo.booted_kernel, 301aed035abSart min(sizeof v1p->booted_kernel, 302aed035abSart sizeof bootinfo.booted_kernel)); 303aed035abSart /* booted dev not provided in bootinfo */ 304aed035abSart init_prom_interface((struct rpb *) 305aed035abSart ALPHA_PHYS_TO_K0SEG(bootinfo.hwrpb_phys)); 306aed035abSart prom_getenv(PROM_E_BOOTED_DEV, bootinfo.booted_dev, 307aed035abSart sizeof bootinfo.booted_dev); 308aed035abSart break; 309aed035abSart } 310aed035abSart default: 311aed035abSart bootinfo_msg = "unknown bootinfo version"; 312aed035abSart goto nobootinfo; 313aed035abSart } 314aed035abSart } else { 315aed035abSart bootinfo_msg = "boot program did not pass bootinfo"; 316aed035abSart nobootinfo: 317aed035abSart bootinfo.ssym = (u_long)_end; 318aed035abSart bootinfo.esym = (u_long)_end; 319aed035abSart bootinfo.hwrpb_phys = ((struct rpb *)HWRPB_ADDR)->rpb_phys; 320aed035abSart bootinfo.hwrpb_size = ((struct rpb *)HWRPB_ADDR)->rpb_size; 321aed035abSart init_prom_interface((struct rpb *)HWRPB_ADDR); 322aed035abSart prom_getenv(PROM_E_BOOTED_OSFLAGS, bootinfo.boot_flags, 323aed035abSart sizeof bootinfo.boot_flags); 324aed035abSart prom_getenv(PROM_E_BOOTED_FILE, bootinfo.booted_kernel, 325aed035abSart sizeof bootinfo.booted_kernel); 326aed035abSart prom_getenv(PROM_E_BOOTED_DEV, bootinfo.booted_dev, 327aed035abSart sizeof bootinfo.booted_dev); 328aed035abSart } 329aed035abSart 330aed035abSart esym = (caddr_t)bootinfo.esym; 331aed035abSart /* 332aed035abSart * Initialize the kernel's mapping of the RPB. It's needed for 333aed035abSart * lots of things. 334aed035abSart */ 335aed035abSart hwrpb = (struct rpb *)ALPHA_PHYS_TO_K0SEG(bootinfo.hwrpb_phys); 336aed035abSart 337aed035abSart #if defined(DEC_3000_300) || defined(DEC_3000_500) 338aed035abSart if (hwrpb->rpb_type == ST_DEC_3000_300 || 339aed035abSart hwrpb->rpb_type == ST_DEC_3000_500) { 340aed035abSart prom_getenv(PROM_E_SCSIID, dec_3000_scsiid, 341aed035abSart sizeof(dec_3000_scsiid)); 342aed035abSart prom_getenv(PROM_E_SCSIFAST, dec_3000_scsifast, 343aed035abSart sizeof(dec_3000_scsifast)); 344aed035abSart } 345aed035abSart #endif 346df930be7Sderaadt 347df930be7Sderaadt /* 348df930be7Sderaadt * Remember how many cycles there are per microsecond, 349df930be7Sderaadt * so that we can use delay(). Round up, for safety. 350df930be7Sderaadt */ 351df930be7Sderaadt cycles_per_usec = (hwrpb->rpb_cc_freq + 999999) / 1000000; 352df930be7Sderaadt 353df930be7Sderaadt /* 3549e71c994Saaron * Initialize the (temporary) bootstrap console interface, so 355aed035abSart * we can use printf until the VM system starts being setup. 356aed035abSart * The real console is initialized before then. 357df930be7Sderaadt */ 358aed035abSart init_bootstrap_console(); 359aed035abSart 360aed035abSart /* OUTPUT NOW ALLOWED */ 361aed035abSart 362aed035abSart /* delayed from above */ 363aed035abSart if (bootinfo_msg) 364aed035abSart printf("WARNING: %s (0x%lx, 0x%lx, 0x%lx)\n", 365aed035abSart bootinfo_msg, bim, bip, biv); 366aed035abSart 367aed035abSart /* Initialize the trap vectors on the primary processor. */ 368aed035abSart trap_init(); 369df930be7Sderaadt 370df930be7Sderaadt /* 371aed035abSart * Find out what hardware we're on, and do basic initialization. 372df930be7Sderaadt */ 373aed035abSart cputype = hwrpb->rpb_type; 374aed035abSart if (cputype < 0) { 375aed035abSart /* 376aed035abSart * At least some white-box systems have SRM which 377aed035abSart * reports a systype that's the negative of their 378aed035abSart * blue-box counterpart. 379aed035abSart */ 380aed035abSart cputype = -cputype; 381aed035abSart } 382aed035abSart c = platform_lookup(cputype); 383aed035abSart if (c == NULL) { 384aed035abSart platform_not_supported(); 385aed035abSart /* NOTREACHED */ 386aed035abSart } 387aed035abSart (*c->init)(); 388*094fa01fSderaadt strlcpy(cpu_model, platform.model, sizeof cpu_model); 38950ce9ee0Sniklas 39050ce9ee0Sniklas /* 3919e71c994Saaron * Initialize the real console, so that the bootstrap console is 392aed035abSart * no longer necessary. 39350ce9ee0Sniklas */ 394aed035abSart (*platform.cons_init)(); 395aed035abSart 396aed035abSart #ifdef DIAGNOSTIC 397aed035abSart /* Paranoid sanity checking */ 398aed035abSart 399aed035abSart /* We should always be running on the primary. */ 400aed035abSart assert(hwrpb->rpb_primary_cpu_id == alpha_pal_whami()); 401aed035abSart 402aed035abSart /* 403aed035abSart * On single-CPU systypes, the primary should always be CPU 0, 404aed035abSart * except on Alpha 8200 systems where the CPU id is related 405aed035abSart * to the VID, which is related to the Turbo Laser node id. 406aed035abSart */ 407aed035abSart if (cputype != ST_DEC_21000) 408aed035abSart assert(hwrpb->rpb_primary_cpu_id == 0); 409aed035abSart #endif 410aed035abSart 411aed035abSart /* NO MORE FIRMWARE ACCESS ALLOWED */ 412aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 413aed035abSart /* 414aed035abSart * XXX (unless _PMAP_MAY_USE_PROM_CONSOLE is defined and 415aed035abSart * XXX pmap_uses_prom_console() evaluates to non-zero.) 416aed035abSart */ 417aed035abSart #endif 418aed035abSart 419aed035abSart /* 420aed035abSart * find out this system's page size 421aed035abSart */ 42273b9fe7cSart if ((uvmexp.pagesize = hwrpb->rpb_page_size) != 8192) 42373b9fe7cSart panic("page size %d != 8192?!", uvmexp.pagesize); 424aed035abSart 425aed035abSart uvm_setpagesize(); 426aed035abSart 427aed035abSart /* 428aed035abSart * Find the beginning and end of the kernel (and leave a 429aed035abSart * bit of space before the beginning for the bootstrap 430aed035abSart * stack). 431aed035abSart */ 432aed035abSart kernstart = trunc_page((vaddr_t)kernel_text) - 2 * PAGE_SIZE; 433aed035abSart kernend = (vaddr_t)round_page((vaddr_t)bootinfo.esym); 434aed035abSart 435aed035abSart kernstartpfn = atop(ALPHA_K0SEG_TO_PHYS(kernstart)); 436aed035abSart kernendpfn = atop(ALPHA_K0SEG_TO_PHYS(kernend)); 437df930be7Sderaadt 438df930be7Sderaadt /* 439df930be7Sderaadt * Find out how much memory is available, by looking at 440df930be7Sderaadt * the memory cluster descriptors. This also tries to do 441df930be7Sderaadt * its best to detect things things that have never been seen 442df930be7Sderaadt * before... 443df930be7Sderaadt */ 444df930be7Sderaadt mddtp = (struct mddt *)(((caddr_t)hwrpb) + hwrpb->rpb_memdat_off); 445df930be7Sderaadt 446aed035abSart /* MDDT SANITY CHECKING */ 447df930be7Sderaadt mddtweird = 0; 448aed035abSart if (mddtp->mddt_cluster_cnt < 2) { 449df930be7Sderaadt mddtweird = 1; 450aed035abSart printf("WARNING: weird number of mem clusters: %lu\n", 451aed035abSart mddtp->mddt_cluster_cnt); 452df930be7Sderaadt } 453df930be7Sderaadt 454aed035abSart #if 0 455aed035abSart printf("Memory cluster count: %d\n", mddtp->mddt_cluster_cnt); 456aed035abSart #endif 457df930be7Sderaadt 458aed035abSart for (i = 0; i < mddtp->mddt_cluster_cnt; i++) { 459aed035abSart memc = &mddtp->mddt_clusters[i]; 460aed035abSart #if 0 461aed035abSart printf("MEMC %d: pfn 0x%lx cnt 0x%lx usage 0x%lx\n", i, 462aed035abSart memc->mddt_pfn, memc->mddt_pg_cnt, memc->mddt_usage); 463aed035abSart #endif 464aed035abSart totalphysmem += memc->mddt_pg_cnt; 465aed035abSart if (mem_cluster_cnt < VM_PHYSSEG_MAX) { /* XXX */ 466aed035abSart mem_clusters[mem_cluster_cnt].start = 467aed035abSart ptoa(memc->mddt_pfn); 468aed035abSart mem_clusters[mem_cluster_cnt].size = 469aed035abSart ptoa(memc->mddt_pg_cnt); 470aed035abSart if (memc->mddt_usage & MDDT_mbz || 471aed035abSart memc->mddt_usage & MDDT_NONVOLATILE || /* XXX */ 472aed035abSart memc->mddt_usage & MDDT_PALCODE) 473aed035abSart mem_clusters[mem_cluster_cnt].size |= 474aed035abSart VM_PROT_READ; 475aed035abSart else 476aed035abSart mem_clusters[mem_cluster_cnt].size |= 477aed035abSart VM_PROT_READ | VM_PROT_WRITE | VM_PROT_EXECUTE; 478aed035abSart mem_cluster_cnt++; 479aed035abSart } 480aed035abSart 481aed035abSart if (memc->mddt_usage & MDDT_mbz) { 482aed035abSart mddtweird = 1; 483aed035abSart printf("WARNING: mem cluster %d has weird " 484aed035abSart "usage 0x%lx\n", i, memc->mddt_usage); 485aed035abSart unknownmem += memc->mddt_pg_cnt; 486aed035abSart continue; 487aed035abSart } 488aed035abSart if (memc->mddt_usage & MDDT_NONVOLATILE) { 489aed035abSart /* XXX should handle these... */ 490aed035abSart printf("WARNING: skipping non-volatile mem " 491aed035abSart "cluster %d\n", i); 492aed035abSart unusedmem += memc->mddt_pg_cnt; 493aed035abSart continue; 494aed035abSart } 495aed035abSart if (memc->mddt_usage & MDDT_PALCODE) { 496aed035abSart resvmem += memc->mddt_pg_cnt; 497aed035abSart continue; 498aed035abSart } 499aed035abSart 500aed035abSart /* 501aed035abSart * We have a memory cluster available for system 502aed035abSart * software use. We must determine if this cluster 503aed035abSart * holds the kernel. 504aed035abSart */ 505aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 506aed035abSart /* 507aed035abSart * XXX If the kernel uses the PROM console, we only use the 508aed035abSart * XXX memory after the kernel in the first system segment, 509aed035abSart * XXX to avoid clobbering prom mapping, data, etc. 510aed035abSart */ 511aed035abSart if (!pmap_uses_prom_console() || physmem == 0) { 512aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 513aed035abSart physmem += memc->mddt_pg_cnt; 514aed035abSart pfn0 = memc->mddt_pfn; 515aed035abSart pfn1 = memc->mddt_pfn + memc->mddt_pg_cnt; 516aed035abSart if (pfn0 <= kernstartpfn && kernendpfn <= pfn1) { 517aed035abSart /* 518aed035abSart * Must compute the location of the kernel 519aed035abSart * within the segment. 520aed035abSart */ 521aed035abSart #if 0 522aed035abSart printf("Cluster %d contains kernel\n", i); 523aed035abSart #endif 524aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 525aed035abSart if (!pmap_uses_prom_console()) { 526aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 527aed035abSart if (pfn0 < kernstartpfn) { 528aed035abSart /* 529aed035abSart * There is a chunk before the kernel. 530aed035abSart */ 531aed035abSart #if 0 532aed035abSart printf("Loading chunk before kernel: " 533aed035abSart "0x%lx / 0x%lx\n", pfn0, kernstartpfn); 534aed035abSart #endif 535aed035abSart uvm_page_physload(pfn0, kernstartpfn, 536aed035abSart pfn0, kernstartpfn, VM_FREELIST_DEFAULT); 537aed035abSart } 538aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 539aed035abSart } 540aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 541aed035abSart if (kernendpfn < pfn1) { 542aed035abSart /* 543aed035abSart * There is a chunk after the kernel. 544aed035abSart */ 545aed035abSart #if 0 546aed035abSart printf("Loading chunk after kernel: " 547aed035abSart "0x%lx / 0x%lx\n", kernendpfn, pfn1); 548aed035abSart #endif 549aed035abSart uvm_page_physload(kernendpfn, pfn1, 550aed035abSart kernendpfn, pfn1, VM_FREELIST_DEFAULT); 551aed035abSart } 552aed035abSart } else { 553aed035abSart /* 554aed035abSart * Just load this cluster as one chunk. 555aed035abSart */ 556aed035abSart #if 0 557aed035abSart printf("Loading cluster %d: 0x%lx / 0x%lx\n", i, 558aed035abSart pfn0, pfn1); 559aed035abSart #endif 560aed035abSart uvm_page_physload(pfn0, pfn1, pfn0, pfn1, 561aed035abSart VM_FREELIST_DEFAULT); 562aed035abSart } 563aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 564aed035abSart } 565aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 566aed035abSart } 567aed035abSart 568aed035abSart /* 569aed035abSart * Dump out the MDDT if it looks odd... 570aed035abSart */ 571df930be7Sderaadt if (mddtweird) { 572df930be7Sderaadt printf("\n"); 573df930be7Sderaadt printf("complete memory cluster information:\n"); 574df930be7Sderaadt for (i = 0; i < mddtp->mddt_cluster_cnt; i++) { 575df930be7Sderaadt printf("mddt %d:\n", i); 576df930be7Sderaadt printf("\tpfn %lx\n", 577df930be7Sderaadt mddtp->mddt_clusters[i].mddt_pfn); 578df930be7Sderaadt printf("\tcnt %lx\n", 579df930be7Sderaadt mddtp->mddt_clusters[i].mddt_pg_cnt); 580df930be7Sderaadt printf("\ttest %lx\n", 581df930be7Sderaadt mddtp->mddt_clusters[i].mddt_pg_test); 582df930be7Sderaadt printf("\tbva %lx\n", 583df930be7Sderaadt mddtp->mddt_clusters[i].mddt_v_bitaddr); 584df930be7Sderaadt printf("\tbpa %lx\n", 585df930be7Sderaadt mddtp->mddt_clusters[i].mddt_p_bitaddr); 586df930be7Sderaadt printf("\tbcksum %lx\n", 587df930be7Sderaadt mddtp->mddt_clusters[i].mddt_bit_cksum); 588df930be7Sderaadt printf("\tusage %lx\n", 589df930be7Sderaadt mddtp->mddt_clusters[i].mddt_usage); 590df930be7Sderaadt } 591df930be7Sderaadt printf("\n"); 592df930be7Sderaadt } 593df930be7Sderaadt 594df930be7Sderaadt if (totalphysmem == 0) 595df930be7Sderaadt panic("can't happen: system seems to have no memory!"); 596df930be7Sderaadt maxmem = physmem; 597df930be7Sderaadt #if 0 598df930be7Sderaadt printf("totalphysmem = %d\n", totalphysmem); 599df930be7Sderaadt printf("physmem = %d\n", physmem); 600df930be7Sderaadt printf("resvmem = %d\n", resvmem); 601df930be7Sderaadt printf("unusedmem = %d\n", unusedmem); 602df930be7Sderaadt printf("unknownmem = %d\n", unknownmem); 603df930be7Sderaadt #endif 604df930be7Sderaadt 605df930be7Sderaadt /* 606aed035abSart * Initialize error message buffer (at end of core). 607df930be7Sderaadt */ 608aed035abSart { 609aed035abSart vsize_t sz = (vsize_t)round_page(MSGBUFSIZE); 610aed035abSart vsize_t reqsz = sz; 611df930be7Sderaadt 612aed035abSart vps = &vm_physmem[vm_nphysseg - 1]; 613e1da84e1Salex 614aed035abSart /* shrink so that it'll fit in the last segment */ 615aed035abSart if ((vps->avail_end - vps->avail_start) < atop(sz)) 616aed035abSart sz = ptoa(vps->avail_end - vps->avail_start); 617aed035abSart 618aed035abSart vps->end -= atop(sz); 619aed035abSart vps->avail_end -= atop(sz); 620aed035abSart initmsgbuf((caddr_t) ALPHA_PHYS_TO_K0SEG(ptoa(vps->end)), sz); 621aed035abSart 622aed035abSart /* Remove the last segment if it now has no pages. */ 623aed035abSart if (vps->start == vps->end) 624aed035abSart vm_nphysseg--; 625aed035abSart 626aed035abSart /* warn if the message buffer had to be shrunk */ 627aed035abSart if (sz != reqsz) 628aed035abSart printf("WARNING: %ld bytes not available for msgbuf " 629aed035abSart "in last cluster (%ld used)\n", reqsz, sz); 630aed035abSart 631aed035abSart } 632aed035abSart 633df930be7Sderaadt /* 634df930be7Sderaadt * Init mapping for u page(s) for proc 0 635df930be7Sderaadt */ 636aed035abSart proc0.p_addr = proc0paddr = 637aed035abSart (struct user *)pmap_steal_memory(UPAGES * PAGE_SIZE, NULL, NULL); 638df930be7Sderaadt 639df930be7Sderaadt /* 640aed035abSart * Allocate space for system data structures. These data structures 641aed035abSart * are allocated here instead of cpu_startup() because physical 642aed035abSart * memory is directly addressable. We don't have to map these into 643aed035abSart * virtual address space. 644df930be7Sderaadt */ 645aed035abSart size = (vsize_t)allocsys(NULL); 646aed035abSart v = (caddr_t)pmap_steal_memory(size, NULL, NULL); 647aed035abSart if ((allocsys(v) - v) != size) 648aed035abSart panic("alpha_init: table size inconsistency"); 649df930be7Sderaadt 650df930be7Sderaadt /* 651df930be7Sderaadt * Clear allocated memory. 652df930be7Sderaadt */ 653aed035abSart bzero(v, size); 654df930be7Sderaadt 655df930be7Sderaadt /* 656df930be7Sderaadt * Initialize the virtual memory system, and set the 657df930be7Sderaadt * page table base register in proc 0's PCB. 658df930be7Sderaadt */ 659aed035abSart pmap_bootstrap(ALPHA_PHYS_TO_K0SEG(ptb << PGSHIFT), 660aed035abSart hwrpb->rpb_max_asn, hwrpb->rpb_pcs_cnt); 661df930be7Sderaadt 662df930be7Sderaadt /* 663df930be7Sderaadt * Initialize the rest of proc 0's PCB, and cache its physical 664df930be7Sderaadt * address. 665df930be7Sderaadt */ 666df930be7Sderaadt proc0.p_md.md_pcbpaddr = 667aed035abSart (struct pcb *)ALPHA_K0SEG_TO_PHYS((vaddr_t)&proc0paddr->u_pcb); 668df930be7Sderaadt 669df930be7Sderaadt /* 670df930be7Sderaadt * Set the kernel sp, reserving space for an (empty) trapframe, 671df930be7Sderaadt * and make proc0's trapframe pointer point to it for sanity. 672df930be7Sderaadt */ 67350ce9ee0Sniklas proc0paddr->u_pcb.pcb_hw.apcb_ksp = 674df930be7Sderaadt (u_int64_t)proc0paddr + USPACE - sizeof(struct trapframe); 67574652a67Sniklas proc0.p_md.md_tf = 67674652a67Sniklas (struct trapframe *)proc0paddr->u_pcb.pcb_hw.apcb_ksp; 67750ce9ee0Sniklas 678aed035abSart /* 679aed035abSart * Initialize the primary CPU's idle PCB to proc0's. In a 680aed035abSart * MULTIPROCESSOR configuration, each CPU will later get 681aed035abSart * its own idle PCB when autoconfiguration runs. 682aed035abSart */ 683aed035abSart ci->ci_idle_pcb = &proc0paddr->u_pcb; 684aed035abSart ci->ci_idle_pcb_paddr = (u_long)proc0.p_md.md_pcbpaddr; 685df930be7Sderaadt 686df930be7Sderaadt /* 687df930be7Sderaadt * Look at arguments passed to us and compute boothowto. 688df930be7Sderaadt */ 689417eba8cSderaadt 690417eba8cSderaadt boothowto = RB_SINGLE; 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) { 701df930be7Sderaadt case 'a': /* autoboot */ 702417eba8cSderaadt case 'A': 703df930be7Sderaadt boothowto &= ~RB_SINGLE; 704df930be7Sderaadt break; 705df930be7Sderaadt 70612f8bbedSniklas case 'b': /* Enter DDB as soon as the console is initialised */ 70712f8bbedSniklas case 'B': 70812f8bbedSniklas boothowto |= RB_KDB; 70912f8bbedSniklas break; 71012f8bbedSniklas 71150ce9ee0Sniklas case 'c': /* enter user kernel configuration */ 71250ce9ee0Sniklas case 'C': 71350ce9ee0Sniklas boothowto |= RB_CONFIG; 71450ce9ee0Sniklas break; 71550ce9ee0Sniklas 71650ce9ee0Sniklas #ifdef DEBUG 71750ce9ee0Sniklas case 'd': /* crash dump immediately after autoconfig */ 71850ce9ee0Sniklas case 'D': 71950ce9ee0Sniklas boothowto |= RB_DUMP; 72050ce9ee0Sniklas break; 72150ce9ee0Sniklas #endif 72250ce9ee0Sniklas 72350ce9ee0Sniklas case 'h': /* always halt, never reboot */ 72450ce9ee0Sniklas case 'H': 72550ce9ee0Sniklas boothowto |= RB_HALT; 726df930be7Sderaadt break; 727df930be7Sderaadt 728417eba8cSderaadt #if 0 729417eba8cSderaadt case 'm': /* mini root present in memory */ 730417eba8cSderaadt case 'M': 731417eba8cSderaadt boothowto |= RB_MINIROOT; 732417eba8cSderaadt break; 733417eba8cSderaadt #endif 73450ce9ee0Sniklas 73550ce9ee0Sniklas case 'n': /* askname */ 73650ce9ee0Sniklas case 'N': 73750ce9ee0Sniklas boothowto |= RB_ASKNAME; 73850ce9ee0Sniklas break; 739aed035abSart 740aed035abSart case 's': /* single-user (default, supported for sanity) */ 741aed035abSart case 'S': 742aed035abSart boothowto |= RB_SINGLE; 743aed035abSart break; 744aed035abSart 745aed035abSart case '-': 746aed035abSart /* 747aed035abSart * Just ignore this. It's not required, but it's 748aed035abSart * common for it to be passed regardless. 749aed035abSart */ 750aed035abSart break; 751aed035abSart 752aed035abSart default: 753aed035abSart printf("Unrecognized boot flag '%c'.\n", *p); 754aed035abSart break; 755df930be7Sderaadt } 756df930be7Sderaadt } 757df930be7Sderaadt 758aed035abSart 759df930be7Sderaadt /* 760df930be7Sderaadt * Figure out the number of cpus in the box, from RPB fields. 761df930be7Sderaadt * Really. We mean it. 762df930be7Sderaadt */ 763df930be7Sderaadt for (i = 0; i < hwrpb->rpb_pcs_cnt; i++) { 764df930be7Sderaadt struct pcs *pcsp; 765df930be7Sderaadt 766aed035abSart pcsp = LOCATE_PCS(hwrpb, i); 767df930be7Sderaadt if ((pcsp->pcs_flags & PCS_PP) != 0) 768df930be7Sderaadt ncpus++; 769df930be7Sderaadt } 770aed035abSart 771aed035abSart /* 772aed035abSart * Initialize debuggers, and break into them if appropriate. 773aed035abSart */ 774aed035abSart #ifdef DDB 775aed035abSart ddb_init(); 776aed035abSart 777aed035abSart if (boothowto & RB_KDB) 778aed035abSart Debugger(); 779aed035abSart #endif 780aed035abSart #ifdef KGDB 781aed035abSart if (boothowto & RB_KDB) 782aed035abSart kgdb_connect(0); 783aed035abSart #endif 784aed035abSart /* 785aed035abSart * Figure out our clock frequency, from RPB fields. 786aed035abSart */ 787aed035abSart hz = hwrpb->rpb_intr_freq >> 12; 788aed035abSart if (!(60 <= hz && hz <= 10240)) { 789aed035abSart hz = 1024; 790aed035abSart #ifdef DIAGNOSTIC 791aed035abSart printf("WARNING: unbelievable rpb_intr_freq: %ld (%d hz)\n", 792aed035abSart hwrpb->rpb_intr_freq, hz); 793aed035abSart #endif 794aed035abSart } 795aed035abSart } 796aed035abSart 797aed035abSart caddr_t 798aed035abSart allocsys(v) 799aed035abSart caddr_t v; 800aed035abSart { 801aed035abSart /* 802aed035abSart * Allocate space for system data structures. 803aed035abSart * The first available kernel virtual address is in "v". 804aed035abSart * As pages of kernel virtual memory are allocated, "v" is incremented. 805aed035abSart * 806aed035abSart * These data structures are allocated here instead of cpu_startup() 807aed035abSart * because physical memory is directly addressable. We don't have 808aed035abSart * to map these into virtual address space. 809aed035abSart */ 810aed035abSart #define valloc(name, type, num) \ 811aed035abSart (name) = (type *)v; v = (caddr_t)ALIGN((name)+(num)) 812aed035abSart 813aed035abSart #ifdef SYSVMSG 814aed035abSart valloc(msgpool, char, msginfo.msgmax); 815aed035abSart valloc(msgmaps, struct msgmap, msginfo.msgseg); 816aed035abSart valloc(msghdrs, struct msg, msginfo.msgtql); 817aed035abSart valloc(msqids, struct msqid_ds, msginfo.msgmni); 818aed035abSart #endif 819aed035abSart 820aed035abSart /* 821aed035abSart * Determine how many buffers to allocate. 822aed035abSart * We allocate 10% of memory for buffer space. Insure a 823aed035abSart * minimum of 16 buffers. 824aed035abSart */ 825aed035abSart if (bufpages == 0) 82660535ec9Smaja bufpages = (physmem / (100/bufcachepercent)); 827aed035abSart if (nbuf == 0) { 828aed035abSart nbuf = bufpages; 829aed035abSart if (nbuf < 16) 830aed035abSart nbuf = 16; 831aed035abSart } 832aed035abSart valloc(buf, struct buf, nbuf); 833aed035abSart 834aed035abSart #undef valloc 835aed035abSart 836aed035abSart return v; 837df930be7Sderaadt } 838df930be7Sderaadt 839417eba8cSderaadt void 840df930be7Sderaadt consinit() 841df930be7Sderaadt { 842aed035abSart 843aed035abSart /* 844aed035abSart * Everything related to console initialization is done 845aed035abSart * in alpha_init(). 846aed035abSart */ 847aed035abSart #if defined(DIAGNOSTIC) && defined(_PMAP_MAY_USE_PROM_CONSOLE) 848aed035abSart printf("consinit: %susing prom console\n", 849aed035abSart pmap_uses_prom_console() ? "" : "not "); 85012f8bbedSniklas #endif 851df930be7Sderaadt } 852df930be7Sderaadt 8537ce9e539Sericj #include "pckbc.h" 8547ce9e539Sericj #include "pckbd.h" 8557ce9e539Sericj #if (NPCKBC > 0) && (NPCKBD == 0) 8567ce9e539Sericj 8577ce9e539Sericj #include <dev/ic/pckbcvar.h> 8587ce9e539Sericj 8597ce9e539Sericj /* 8608059aba4Sjason * This is called by the pckbc driver if no pckbd is configured. 8617ce9e539Sericj * On the i386, it is used to glue in the old, deprecated console 8627ce9e539Sericj * code. On the Alpha, it does nothing. 8637ce9e539Sericj */ 8647ce9e539Sericj int 8657ce9e539Sericj pckbc_machdep_cnattach(kbctag, kbcslot) 8667ce9e539Sericj pckbc_tag_t kbctag; 8677ce9e539Sericj pckbc_slot_t kbcslot; 8687ce9e539Sericj { 8697ce9e539Sericj return (ENXIO); 8707ce9e539Sericj } 8717ce9e539Sericj #endif /* NPCKBC > 0 && NPCKBD == 0 */ 8727ce9e539Sericj 873417eba8cSderaadt void 874df930be7Sderaadt cpu_startup() 875df930be7Sderaadt { 876df930be7Sderaadt register unsigned i; 877df930be7Sderaadt int base, residual; 878aed035abSart vaddr_t minaddr, maxaddr; 879aed035abSart vsize_t size; 88050ce9ee0Sniklas #if defined(DEBUG) 881df930be7Sderaadt extern int pmapdebug; 882df930be7Sderaadt int opmapdebug = pmapdebug; 883df930be7Sderaadt 884df930be7Sderaadt pmapdebug = 0; 885df930be7Sderaadt #endif 886df930be7Sderaadt 887df930be7Sderaadt /* 888df930be7Sderaadt * Good {morning,afternoon,evening,night}. 889df930be7Sderaadt */ 890df930be7Sderaadt printf(version); 891df930be7Sderaadt identifycpu(); 8923f4ce3b7Smiod printf("total memory = %ld (%ldK)\n", (long)ptoa(totalphysmem), 8933f4ce3b7Smiod (long)ptoa(totalphysmem) / 1024); 8943f4ce3b7Smiod printf("(%ld reserved for PROM, ", (long)ptoa(resvmem)); 8953f4ce3b7Smiod printf("%ld used by OpenBSD)\n", (long)ptoa(physmem)); 896aed035abSart if (unusedmem) { 8973f4ce3b7Smiod printf("WARNING: unused memory = %ld (%ldK)\n", 8983f4ce3b7Smiod (long)ptoa(unusedmem), (long)ptoa(unusedmem) / 1024); 899aed035abSart } 900aed035abSart if (unknownmem) { 9013f4ce3b7Smiod printf("WARNING: %ld (%ldK) of memory with unknown purpose\n", 9023f4ce3b7Smiod (long)ptoa(unknownmem), (long)ptoa(unknownmem) / 1024); 903aed035abSart } 904df930be7Sderaadt 905df930be7Sderaadt /* 906df930be7Sderaadt * Allocate virtual address space for file I/O buffers. 907df930be7Sderaadt * Note they are different than the array of headers, 'buf', 908df930be7Sderaadt * and usually occupy more virtual memory than physical. 909df930be7Sderaadt */ 910df930be7Sderaadt size = MAXBSIZE * nbuf; 911aed035abSart if (uvm_map(kernel_map, (vaddr_t *) &buffers, round_page(size), 912198a4b3fSart NULL, UVM_UNKNOWN_OFFSET, 0, 913aed035abSart UVM_MAPFLAG(UVM_PROT_NONE, UVM_PROT_NONE, UVM_INH_NONE, 914738a5b4dSart UVM_ADV_NORMAL, 0))) 915aed035abSart panic("startup: cannot allocate VM for buffers"); 916df930be7Sderaadt base = bufpages / nbuf; 917df930be7Sderaadt residual = bufpages % nbuf; 918df930be7Sderaadt for (i = 0; i < nbuf; i++) { 919aed035abSart vsize_t curbufsize; 920aed035abSart vaddr_t curbuf; 921aed035abSart struct vm_page *pg; 922df930be7Sderaadt 923df930be7Sderaadt /* 924aed035abSart * Each buffer has MAXBSIZE bytes of VM space allocated. Of 925aed035abSart * that MAXBSIZE space, we allocate and map (base+1) pages 926aed035abSart * for the first "residual" buffers, and then we allocate 927aed035abSart * "base" pages for the rest. 928df930be7Sderaadt */ 929aed035abSart curbuf = (vaddr_t) buffers + (i * MAXBSIZE); 930aed035abSart curbufsize = NBPG * ((i < residual) ? (base+1) : base); 931aed035abSart 932aed035abSart while (curbufsize) { 933aed035abSart pg = uvm_pagealloc(NULL, 0, NULL, 0); 934aed035abSart if (pg == NULL) 935aed035abSart panic("cpu_startup: not enough memory for " 936aed035abSart "buffer cache"); 937aed035abSart pmap_kenter_pa(curbuf, VM_PAGE_TO_PHYS(pg), 938aed035abSart VM_PROT_READ|VM_PROT_WRITE); 939aed035abSart curbuf += PAGE_SIZE; 940aed035abSart curbufsize -= PAGE_SIZE; 941aed035abSart } 9420e5798cfSart pmap_update(pmap_kernel()); 943df930be7Sderaadt } 944df930be7Sderaadt /* 945df930be7Sderaadt * Allocate a submap for exec arguments. This map effectively 946df930be7Sderaadt * limits the number of processes exec'ing at any time. 947df930be7Sderaadt */ 948aed035abSart exec_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 949aed035abSart 16 * NCARGS, VM_MAP_PAGEABLE, FALSE, NULL); 950df930be7Sderaadt 951df930be7Sderaadt /* 952df930be7Sderaadt * Allocate a submap for physio 953df930be7Sderaadt */ 954aed035abSart phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 955aed035abSart VM_PHYS_SIZE, 0, FALSE, NULL); 956df930be7Sderaadt 95750ce9ee0Sniklas #if defined(DEBUG) 958df930be7Sderaadt pmapdebug = opmapdebug; 959df930be7Sderaadt #endif 9603f4ce3b7Smiod printf("avail memory = %ld (%ldK)\n", (long)ptoa(uvmexp.free), 9613f4ce3b7Smiod (long)ptoa(uvmexp.free) / 1024); 962aed035abSart #if 0 963aed035abSart { 964aed035abSart extern u_long pmap_pages_stolen; 965aed035abSart 966aed035abSart printf("stolen memory for VM structures = %d\n", pmap_pages_stolen * PAGE_SIZE); 967aed035abSart } 968aed035abSart #endif 9693f4ce3b7Smiod printf("using %ld buffers containing %ld bytes (%ldK) of memory\n", 9703f4ce3b7Smiod (long)nbuf, (long)bufpages * NBPG, (long)bufpages * (NBPG / 1024)); 971df930be7Sderaadt 972df930be7Sderaadt /* 973df930be7Sderaadt * Set up buffers, so they can be used to read disk labels. 974df930be7Sderaadt */ 975df930be7Sderaadt bufinit(); 976df930be7Sderaadt 977df930be7Sderaadt /* 978df930be7Sderaadt * Configure the system. 979df930be7Sderaadt */ 98041033391Sderaadt if (boothowto & RB_CONFIG) { 98141033391Sderaadt #ifdef BOOT_CONFIG 98241033391Sderaadt user_config(); 98341033391Sderaadt #else 98441033391Sderaadt printf("kernel does not support -c; continuing..\n"); 98541033391Sderaadt #endif 98641033391Sderaadt } 98750ce9ee0Sniklas 98850ce9ee0Sniklas /* 989aed035abSart * Set up the HWPCB so that it's safe to configure secondary 990aed035abSart * CPUs. 99150ce9ee0Sniklas */ 992aed035abSart hwrpb_primary_init(); 993aed035abSart } 994aed035abSart 995aed035abSart /* 996aed035abSart * Retrieve the platform name from the DSR. 997aed035abSart */ 998aed035abSart const char * 999aed035abSart alpha_dsr_sysname() 1000aed035abSart { 1001aed035abSart struct dsrdb *dsr; 1002aed035abSart const char *sysname; 1003aed035abSart 1004aed035abSart /* 1005aed035abSart * DSR does not exist on early HWRPB versions. 1006aed035abSart */ 1007aed035abSart if (hwrpb->rpb_version < HWRPB_DSRDB_MINVERS) 1008aed035abSart return (NULL); 1009aed035abSart 1010aed035abSart dsr = (struct dsrdb *)(((caddr_t)hwrpb) + hwrpb->rpb_dsrdb_off); 1011aed035abSart sysname = (const char *)((caddr_t)dsr + (dsr->dsr_sysname_off + 1012aed035abSart sizeof(u_int64_t))); 1013aed035abSart return (sysname); 1014aed035abSart } 1015aed035abSart 1016aed035abSart /* 1017aed035abSart * Lookup the system specified system variation in the provided table, 1018aed035abSart * returning the model string on match. 1019aed035abSart */ 1020aed035abSart const char * 1021aed035abSart alpha_variation_name(variation, avtp) 1022aed035abSart u_int64_t variation; 1023aed035abSart const struct alpha_variation_table *avtp; 1024aed035abSart { 1025aed035abSart int i; 1026aed035abSart 1027aed035abSart for (i = 0; avtp[i].avt_model != NULL; i++) 1028aed035abSart if (avtp[i].avt_variation == variation) 1029aed035abSart return (avtp[i].avt_model); 1030aed035abSart return (NULL); 1031aed035abSart } 1032aed035abSart 1033aed035abSart /* 1034aed035abSart * Generate a default platform name based for unknown system variations. 1035aed035abSart */ 1036aed035abSart const char * 1037aed035abSart alpha_unknown_sysname() 1038aed035abSart { 1039aed035abSart static char s[128]; /* safe size */ 1040aed035abSart 1041d5eb2d9aSderaadt snprintf(s, sizeof s, "%s family, unknown model variation 0x%lx", 1042aed035abSart platform.family, hwrpb->rpb_variation & SV_ST_MASK); 1043aed035abSart return ((const char *)s); 1044df930be7Sderaadt } 1045df930be7Sderaadt 104650ce9ee0Sniklas void 1047df930be7Sderaadt identifycpu() 1048df930be7Sderaadt { 1049aed035abSart char *s; 1050df930be7Sderaadt 1051df930be7Sderaadt /* 1052df930be7Sderaadt * print out CPU identification information. 1053df930be7Sderaadt */ 1054aed035abSart printf("%s", cpu_model); 1055aed035abSart for(s = cpu_model; *s; ++s) 1056aed035abSart if(strncasecmp(s, "MHz", 3) == 0) 1057aed035abSart goto skipMHz; 1058aed035abSart printf(", %ldMHz", hwrpb->rpb_cc_freq / 1000000); 1059aed035abSart skipMHz: 1060aed035abSart printf("\n"); 106150ce9ee0Sniklas printf("%ld byte page size, %d processor%s.\n", 1062df930be7Sderaadt hwrpb->rpb_page_size, ncpus, ncpus == 1 ? "" : "s"); 1063df930be7Sderaadt #if 0 1064df930be7Sderaadt /* this isn't defined for any systems that we run on? */ 1065df930be7Sderaadt printf("serial number 0x%lx 0x%lx\n", 1066df930be7Sderaadt ((long *)hwrpb->rpb_ssn)[0], ((long *)hwrpb->rpb_ssn)[1]); 1067df930be7Sderaadt 1068df930be7Sderaadt /* and these aren't particularly useful! */ 1069df930be7Sderaadt printf("variation: 0x%lx, revision 0x%lx\n", 1070df930be7Sderaadt hwrpb->rpb_variation, *(long *)hwrpb->rpb_revision); 1071df930be7Sderaadt #endif 1072df930be7Sderaadt } 1073df930be7Sderaadt 1074df930be7Sderaadt int waittime = -1; 1075df930be7Sderaadt struct pcb dumppcb; 1076df930be7Sderaadt 1077417eba8cSderaadt void 1078aed035abSart boot(howto) 1079df930be7Sderaadt int howto; 1080df930be7Sderaadt { 1081aed035abSart #if defined(MULTIPROCESSOR) 1082aed035abSart #if 0 /* XXX See below. */ 1083aed035abSart u_long cpu_id; 1084aed035abSart #endif 1085aed035abSart #endif 1086aed035abSart 1087aed035abSart #if defined(MULTIPROCESSOR) 1088aed035abSart /* We must be running on the primary CPU. */ 1089aed035abSart if (alpha_pal_whami() != hwrpb->rpb_primary_cpu_id) 1090aed035abSart panic("cpu_reboot: not on primary CPU!"); 1091aed035abSart #endif 1092aed035abSart 1093df930be7Sderaadt /* If system is cold, just halt. */ 1094df930be7Sderaadt if (cold) { 1095df930be7Sderaadt howto |= RB_HALT; 1096df930be7Sderaadt goto haltsys; 1097df930be7Sderaadt } 1098df930be7Sderaadt 109950ce9ee0Sniklas /* If "always halt" was specified as a boot flag, obey. */ 110050ce9ee0Sniklas if ((boothowto & RB_HALT) != 0) 110150ce9ee0Sniklas howto |= RB_HALT; 110250ce9ee0Sniklas 1103df930be7Sderaadt boothowto = howto; 1104df930be7Sderaadt if ((howto & RB_NOSYNC) == 0 && waittime < 0) { 1105df930be7Sderaadt waittime = 0; 1106df930be7Sderaadt vfs_shutdown(); 1107df930be7Sderaadt /* 1108df930be7Sderaadt * If we've been adjusting the clock, the todr 1109aed035abSart * will be out of synch; adjust it now. 1110df930be7Sderaadt */ 1111df930be7Sderaadt resettodr(); 1112df930be7Sderaadt } 1113df930be7Sderaadt 1114df930be7Sderaadt /* Disable interrupts. */ 1115df930be7Sderaadt splhigh(); 1116df930be7Sderaadt 1117df930be7Sderaadt /* If rebooting and a dump is requested do it. */ 111850ce9ee0Sniklas if (howto & RB_DUMP) 1119df930be7Sderaadt dumpsys(); 1120df930be7Sderaadt 112134fbf6deSderaadt haltsys: 112234fbf6deSderaadt 1123df930be7Sderaadt /* run any shutdown hooks */ 1124df930be7Sderaadt doshutdownhooks(); 1125df930be7Sderaadt 1126aed035abSart #if defined(MULTIPROCESSOR) 1127aed035abSart #if 0 /* XXX doesn't work when called from here?! */ 1128aed035abSart /* Kill off any secondary CPUs. */ 1129aed035abSart for (cpu_id = 0; cpu_id < hwrpb->rpb_pcs_cnt; cpu_id++) { 1130aed035abSart if (cpu_id == hwrpb->rpb_primary_cpu_id || 1131aed035abSart cpu_info[cpu_id].ci_softc == NULL) 1132aed035abSart continue; 1133aed035abSart cpu_halt_secondary(cpu_id); 1134aed035abSart } 1135aed035abSart #endif 1136aed035abSart #endif 1137aed035abSart 1138df930be7Sderaadt #ifdef BOOTKEY 1139df930be7Sderaadt printf("hit any key to %s...\n", howto & RB_HALT ? "halt" : "reboot"); 1140aed035abSart cnpollc(1); /* for proper keyboard command handling */ 1141df930be7Sderaadt cngetc(); 1142aed035abSart cnpollc(0); 1143df930be7Sderaadt printf("\n"); 1144df930be7Sderaadt #endif 1145df930be7Sderaadt 1146aed035abSart /* Finally, powerdown/halt/reboot the system. */ 1147aed035abSart if ((howto & RB_POWERDOWN) == RB_POWERDOWN && 1148aed035abSart platform.powerdown != NULL) { 1149aed035abSart (*platform.powerdown)(); 1150aed035abSart printf("WARNING: powerdown failed!\n"); 1151aed035abSart } 1152df930be7Sderaadt printf("%s\n\n", howto & RB_HALT ? "halted." : "rebooting..."); 1153df930be7Sderaadt prom_halt(howto & RB_HALT); 1154df930be7Sderaadt /*NOTREACHED*/ 1155df930be7Sderaadt } 1156df930be7Sderaadt 1157df930be7Sderaadt /* 1158df930be7Sderaadt * These variables are needed by /sbin/savecore 1159df930be7Sderaadt */ 1160df930be7Sderaadt u_long dumpmag = 0x8fca0101; /* magic number */ 1161df930be7Sderaadt int dumpsize = 0; /* pages */ 1162df930be7Sderaadt long dumplo = 0; /* blocks */ 1163df930be7Sderaadt 1164df930be7Sderaadt /* 116550ce9ee0Sniklas * cpu_dumpsize: calculate size of machine-dependent kernel core dump headers. 116650ce9ee0Sniklas */ 116750ce9ee0Sniklas int 116850ce9ee0Sniklas cpu_dumpsize() 116950ce9ee0Sniklas { 117050ce9ee0Sniklas int size; 117150ce9ee0Sniklas 1172aed035abSart size = ALIGN(sizeof(kcore_seg_t)) + ALIGN(sizeof(cpu_kcore_hdr_t)) + 1173aed035abSart ALIGN(mem_cluster_cnt * sizeof(phys_ram_seg_t)); 117450ce9ee0Sniklas if (roundup(size, dbtob(1)) != dbtob(1)) 117550ce9ee0Sniklas return -1; 117650ce9ee0Sniklas 117750ce9ee0Sniklas return (1); 117850ce9ee0Sniklas } 117950ce9ee0Sniklas 118050ce9ee0Sniklas /* 1181aed035abSart * cpu_dump_mempagecnt: calculate size of RAM (in pages) to be dumped. 1182aed035abSart */ 1183aed035abSart u_long 1184aed035abSart cpu_dump_mempagecnt() 1185aed035abSart { 1186aed035abSart u_long i, n; 1187aed035abSart 1188aed035abSart n = 0; 1189aed035abSart for (i = 0; i < mem_cluster_cnt; i++) 1190aed035abSart n += atop(mem_clusters[i].size); 1191aed035abSart return (n); 1192aed035abSart } 1193aed035abSart 1194aed035abSart /* 119550ce9ee0Sniklas * cpu_dump: dump machine-dependent kernel core dump headers. 119650ce9ee0Sniklas */ 119750ce9ee0Sniklas int 119850ce9ee0Sniklas cpu_dump() 119950ce9ee0Sniklas { 1200c4071fd1Smillert int (*dump)(dev_t, daddr_t, caddr_t, size_t); 1201aed035abSart char buf[dbtob(1)]; 120250ce9ee0Sniklas kcore_seg_t *segp; 120350ce9ee0Sniklas cpu_kcore_hdr_t *cpuhdrp; 1204aed035abSart phys_ram_seg_t *memsegp; 1205aed035abSart int i; 120650ce9ee0Sniklas 120750ce9ee0Sniklas dump = bdevsw[major(dumpdev)].d_dump; 120850ce9ee0Sniklas 1209aed035abSart bzero(buf, sizeof buf); 121050ce9ee0Sniklas segp = (kcore_seg_t *)buf; 1211aed035abSart cpuhdrp = (cpu_kcore_hdr_t *)&buf[ALIGN(sizeof(*segp))]; 1212aed035abSart memsegp = (phys_ram_seg_t *)&buf[ALIGN(sizeof(*segp)) + 1213aed035abSart ALIGN(sizeof(*cpuhdrp))]; 121450ce9ee0Sniklas 121550ce9ee0Sniklas /* 121650ce9ee0Sniklas * Generate a segment header. 121750ce9ee0Sniklas */ 121850ce9ee0Sniklas CORE_SETMAGIC(*segp, KCORE_MAGIC, MID_MACHINE, CORE_CPU); 121950ce9ee0Sniklas segp->c_size = dbtob(1) - ALIGN(sizeof(*segp)); 122050ce9ee0Sniklas 122150ce9ee0Sniklas /* 1222aed035abSart * Add the machine-dependent header info. 122350ce9ee0Sniklas */ 1224aed035abSart cpuhdrp->lev1map_pa = ALPHA_K0SEG_TO_PHYS((vaddr_t)kernel_lev1map); 122550ce9ee0Sniklas cpuhdrp->page_size = PAGE_SIZE; 1226aed035abSart cpuhdrp->nmemsegs = mem_cluster_cnt; 1227aed035abSart 1228aed035abSart /* 1229aed035abSart * Fill in the memory segment descriptors. 1230aed035abSart */ 1231aed035abSart for (i = 0; i < mem_cluster_cnt; i++) { 1232aed035abSart memsegp[i].start = mem_clusters[i].start; 1233aed035abSart memsegp[i].size = mem_clusters[i].size & ~PAGE_MASK; 1234aed035abSart } 123550ce9ee0Sniklas 123650ce9ee0Sniklas return (dump(dumpdev, dumplo, (caddr_t)buf, dbtob(1))); 123750ce9ee0Sniklas } 123850ce9ee0Sniklas 123950ce9ee0Sniklas /* 1240aed035abSart * This is called by main to set dumplo and dumpsize. 1241aed035abSart * Dumps always skip the first NBPG of disk space 1242df930be7Sderaadt * in case there might be a disk label stored there. 1243df930be7Sderaadt * If there is extra space, put dump at the end to 1244df930be7Sderaadt * reduce the chance that swapping trashes it. 1245df930be7Sderaadt */ 1246df930be7Sderaadt void 1247df930be7Sderaadt dumpconf() 1248df930be7Sderaadt { 124950ce9ee0Sniklas int nblks, dumpblks; /* size of dump area */ 1250df930be7Sderaadt int maj; 1251df930be7Sderaadt 1252df930be7Sderaadt if (dumpdev == NODEV) 125350ce9ee0Sniklas goto bad; 1254df930be7Sderaadt maj = major(dumpdev); 1255df930be7Sderaadt if (maj < 0 || maj >= nblkdev) 1256df930be7Sderaadt panic("dumpconf: bad dumpdev=0x%x", dumpdev); 1257df930be7Sderaadt if (bdevsw[maj].d_psize == NULL) 125850ce9ee0Sniklas goto bad; 1259df930be7Sderaadt nblks = (*bdevsw[maj].d_psize)(dumpdev); 1260df930be7Sderaadt if (nblks <= ctod(1)) 126150ce9ee0Sniklas goto bad; 126250ce9ee0Sniklas 126350ce9ee0Sniklas dumpblks = cpu_dumpsize(); 126450ce9ee0Sniklas if (dumpblks < 0) 126550ce9ee0Sniklas goto bad; 1266aed035abSart dumpblks += ctod(cpu_dump_mempagecnt()); 126750ce9ee0Sniklas 126850ce9ee0Sniklas /* If dump won't fit (incl. room for possible label), punt. */ 126950ce9ee0Sniklas if (dumpblks > (nblks - ctod(1))) 127050ce9ee0Sniklas goto bad; 127150ce9ee0Sniklas 127250ce9ee0Sniklas /* Put dump at end of partition */ 127350ce9ee0Sniklas dumplo = nblks - dumpblks; 127450ce9ee0Sniklas 127550ce9ee0Sniklas /* dumpsize is in page units, and doesn't include headers. */ 1276aed035abSart dumpsize = cpu_dump_mempagecnt(); 1277df930be7Sderaadt return; 1278df930be7Sderaadt 127950ce9ee0Sniklas bad: 128050ce9ee0Sniklas dumpsize = 0; 128150ce9ee0Sniklas return; 1282df930be7Sderaadt } 1283df930be7Sderaadt 1284df930be7Sderaadt /* 128550ce9ee0Sniklas * Dump the kernel's image to the swap partition. 1286df930be7Sderaadt */ 128750ce9ee0Sniklas #define BYTES_PER_DUMP NBPG 128850ce9ee0Sniklas 1289df930be7Sderaadt void 1290df930be7Sderaadt dumpsys() 1291df930be7Sderaadt { 1292aed035abSart u_long totalbytesleft, bytes, i, n, memcl; 1293aed035abSart u_long maddr; 1294aed035abSart int psize; 129550ce9ee0Sniklas daddr_t blkno; 1296c4071fd1Smillert int (*dump)(dev_t, daddr_t, caddr_t, size_t); 129750ce9ee0Sniklas int error; 1298067cbd75Sderaadt extern int msgbufmapped; 1299df930be7Sderaadt 130050ce9ee0Sniklas /* Save registers. */ 130150ce9ee0Sniklas savectx(&dumppcb); 130250ce9ee0Sniklas 130350ce9ee0Sniklas msgbufmapped = 0; /* don't record dump msgs in msgbuf */ 1304df930be7Sderaadt if (dumpdev == NODEV) 1305df930be7Sderaadt return; 130650ce9ee0Sniklas 130750ce9ee0Sniklas /* 130850ce9ee0Sniklas * For dumps during autoconfiguration, 130950ce9ee0Sniklas * if dump device has already configured... 131050ce9ee0Sniklas */ 1311df930be7Sderaadt if (dumpsize == 0) 131250ce9ee0Sniklas dumpconf(); 131350ce9ee0Sniklas if (dumplo <= 0) { 1314aed035abSart printf("\ndump to dev %u,%u not possible\n", major(dumpdev), 1315aed035abSart minor(dumpdev)); 1316df930be7Sderaadt return; 1317df930be7Sderaadt } 1318aed035abSart printf("\ndumping to dev %u,%u offset %ld\n", major(dumpdev), 1319aed035abSart minor(dumpdev), dumplo); 1320df930be7Sderaadt 132150ce9ee0Sniklas psize = (*bdevsw[major(dumpdev)].d_psize)(dumpdev); 1322df930be7Sderaadt printf("dump "); 132350ce9ee0Sniklas if (psize == -1) { 132450ce9ee0Sniklas printf("area unavailable\n"); 132550ce9ee0Sniklas return; 132650ce9ee0Sniklas } 132750ce9ee0Sniklas 132850ce9ee0Sniklas /* XXX should purge all outstanding keystrokes. */ 132950ce9ee0Sniklas 133050ce9ee0Sniklas if ((error = cpu_dump()) != 0) 133150ce9ee0Sniklas goto err; 133250ce9ee0Sniklas 1333aed035abSart totalbytesleft = ptoa(cpu_dump_mempagecnt()); 133450ce9ee0Sniklas blkno = dumplo + cpu_dumpsize(); 133550ce9ee0Sniklas dump = bdevsw[major(dumpdev)].d_dump; 133650ce9ee0Sniklas error = 0; 1337aed035abSart 1338aed035abSart for (memcl = 0; memcl < mem_cluster_cnt; memcl++) { 1339aed035abSart maddr = mem_clusters[memcl].start; 1340aed035abSart bytes = mem_clusters[memcl].size & ~PAGE_MASK; 1341aed035abSart 1342aed035abSart for (i = 0; i < bytes; i += n, totalbytesleft -= n) { 134350ce9ee0Sniklas 134450ce9ee0Sniklas /* Print out how many MBs we to go. */ 1345aed035abSart if ((totalbytesleft % (1024*1024)) == 0) 1346aed035abSart printf("%ld ", totalbytesleft / (1024 * 1024)); 134750ce9ee0Sniklas 134850ce9ee0Sniklas /* Limit size for next transfer. */ 1349aed035abSart n = bytes - i; 135050ce9ee0Sniklas if (n > BYTES_PER_DUMP) 135150ce9ee0Sniklas n = BYTES_PER_DUMP; 135250ce9ee0Sniklas 135350ce9ee0Sniklas error = (*dump)(dumpdev, blkno, 135450ce9ee0Sniklas (caddr_t)ALPHA_PHYS_TO_K0SEG(maddr), n); 135550ce9ee0Sniklas if (error) 1356aed035abSart goto err; 135750ce9ee0Sniklas maddr += n; 135850ce9ee0Sniklas blkno += btodb(n); /* XXX? */ 135950ce9ee0Sniklas 136050ce9ee0Sniklas /* XXX should look for keystrokes, to cancel. */ 136150ce9ee0Sniklas } 1362aed035abSart } 136350ce9ee0Sniklas 136450ce9ee0Sniklas err: 136550ce9ee0Sniklas switch (error) { 1366df930be7Sderaadt 1367df930be7Sderaadt case ENXIO: 1368df930be7Sderaadt printf("device bad\n"); 1369df930be7Sderaadt break; 1370df930be7Sderaadt 1371df930be7Sderaadt case EFAULT: 1372df930be7Sderaadt printf("device not ready\n"); 1373df930be7Sderaadt break; 1374df930be7Sderaadt 1375df930be7Sderaadt case EINVAL: 1376df930be7Sderaadt printf("area improper\n"); 1377df930be7Sderaadt break; 1378df930be7Sderaadt 1379df930be7Sderaadt case EIO: 1380df930be7Sderaadt printf("i/o error\n"); 1381df930be7Sderaadt break; 1382df930be7Sderaadt 1383df930be7Sderaadt case EINTR: 1384df930be7Sderaadt printf("aborted from console\n"); 1385df930be7Sderaadt break; 1386df930be7Sderaadt 138750ce9ee0Sniklas case 0: 1388df930be7Sderaadt printf("succeeded\n"); 1389df930be7Sderaadt break; 139050ce9ee0Sniklas 139150ce9ee0Sniklas default: 139250ce9ee0Sniklas printf("error %d\n", error); 139350ce9ee0Sniklas break; 1394df930be7Sderaadt } 1395df930be7Sderaadt printf("\n\n"); 1396df930be7Sderaadt delay(1000); 1397df930be7Sderaadt } 1398df930be7Sderaadt 1399df930be7Sderaadt void 1400df930be7Sderaadt frametoreg(framep, regp) 1401df930be7Sderaadt struct trapframe *framep; 1402df930be7Sderaadt struct reg *regp; 1403df930be7Sderaadt { 1404df930be7Sderaadt 1405df930be7Sderaadt regp->r_regs[R_V0] = framep->tf_regs[FRAME_V0]; 1406df930be7Sderaadt regp->r_regs[R_T0] = framep->tf_regs[FRAME_T0]; 1407df930be7Sderaadt regp->r_regs[R_T1] = framep->tf_regs[FRAME_T1]; 1408df930be7Sderaadt regp->r_regs[R_T2] = framep->tf_regs[FRAME_T2]; 1409df930be7Sderaadt regp->r_regs[R_T3] = framep->tf_regs[FRAME_T3]; 1410df930be7Sderaadt regp->r_regs[R_T4] = framep->tf_regs[FRAME_T4]; 1411df930be7Sderaadt regp->r_regs[R_T5] = framep->tf_regs[FRAME_T5]; 1412df930be7Sderaadt regp->r_regs[R_T6] = framep->tf_regs[FRAME_T6]; 1413df930be7Sderaadt regp->r_regs[R_T7] = framep->tf_regs[FRAME_T7]; 1414df930be7Sderaadt regp->r_regs[R_S0] = framep->tf_regs[FRAME_S0]; 1415df930be7Sderaadt regp->r_regs[R_S1] = framep->tf_regs[FRAME_S1]; 1416df930be7Sderaadt regp->r_regs[R_S2] = framep->tf_regs[FRAME_S2]; 1417df930be7Sderaadt regp->r_regs[R_S3] = framep->tf_regs[FRAME_S3]; 1418df930be7Sderaadt regp->r_regs[R_S4] = framep->tf_regs[FRAME_S4]; 1419df930be7Sderaadt regp->r_regs[R_S5] = framep->tf_regs[FRAME_S5]; 1420df930be7Sderaadt regp->r_regs[R_S6] = framep->tf_regs[FRAME_S6]; 142150ce9ee0Sniklas regp->r_regs[R_A0] = framep->tf_regs[FRAME_A0]; 142250ce9ee0Sniklas regp->r_regs[R_A1] = framep->tf_regs[FRAME_A1]; 142350ce9ee0Sniklas regp->r_regs[R_A2] = framep->tf_regs[FRAME_A2]; 1424df930be7Sderaadt regp->r_regs[R_A3] = framep->tf_regs[FRAME_A3]; 1425df930be7Sderaadt regp->r_regs[R_A4] = framep->tf_regs[FRAME_A4]; 1426df930be7Sderaadt regp->r_regs[R_A5] = framep->tf_regs[FRAME_A5]; 1427df930be7Sderaadt regp->r_regs[R_T8] = framep->tf_regs[FRAME_T8]; 1428df930be7Sderaadt regp->r_regs[R_T9] = framep->tf_regs[FRAME_T9]; 1429df930be7Sderaadt regp->r_regs[R_T10] = framep->tf_regs[FRAME_T10]; 1430df930be7Sderaadt regp->r_regs[R_T11] = framep->tf_regs[FRAME_T11]; 1431df930be7Sderaadt regp->r_regs[R_RA] = framep->tf_regs[FRAME_RA]; 1432df930be7Sderaadt regp->r_regs[R_T12] = framep->tf_regs[FRAME_T12]; 1433df930be7Sderaadt regp->r_regs[R_AT] = framep->tf_regs[FRAME_AT]; 143450ce9ee0Sniklas regp->r_regs[R_GP] = framep->tf_regs[FRAME_GP]; 143550ce9ee0Sniklas /* regp->r_regs[R_SP] = framep->tf_regs[FRAME_SP]; XXX */ 1436df930be7Sderaadt regp->r_regs[R_ZERO] = 0; 1437df930be7Sderaadt } 1438df930be7Sderaadt 1439df930be7Sderaadt void 1440df930be7Sderaadt regtoframe(regp, framep) 1441df930be7Sderaadt struct reg *regp; 1442df930be7Sderaadt struct trapframe *framep; 1443df930be7Sderaadt { 1444df930be7Sderaadt 1445df930be7Sderaadt framep->tf_regs[FRAME_V0] = regp->r_regs[R_V0]; 1446df930be7Sderaadt framep->tf_regs[FRAME_T0] = regp->r_regs[R_T0]; 1447df930be7Sderaadt framep->tf_regs[FRAME_T1] = regp->r_regs[R_T1]; 1448df930be7Sderaadt framep->tf_regs[FRAME_T2] = regp->r_regs[R_T2]; 1449df930be7Sderaadt framep->tf_regs[FRAME_T3] = regp->r_regs[R_T3]; 1450df930be7Sderaadt framep->tf_regs[FRAME_T4] = regp->r_regs[R_T4]; 1451df930be7Sderaadt framep->tf_regs[FRAME_T5] = regp->r_regs[R_T5]; 1452df930be7Sderaadt framep->tf_regs[FRAME_T6] = regp->r_regs[R_T6]; 1453df930be7Sderaadt framep->tf_regs[FRAME_T7] = regp->r_regs[R_T7]; 1454df930be7Sderaadt framep->tf_regs[FRAME_S0] = regp->r_regs[R_S0]; 1455df930be7Sderaadt framep->tf_regs[FRAME_S1] = regp->r_regs[R_S1]; 1456df930be7Sderaadt framep->tf_regs[FRAME_S2] = regp->r_regs[R_S2]; 1457df930be7Sderaadt framep->tf_regs[FRAME_S3] = regp->r_regs[R_S3]; 1458df930be7Sderaadt framep->tf_regs[FRAME_S4] = regp->r_regs[R_S4]; 1459df930be7Sderaadt framep->tf_regs[FRAME_S5] = regp->r_regs[R_S5]; 1460df930be7Sderaadt framep->tf_regs[FRAME_S6] = regp->r_regs[R_S6]; 146150ce9ee0Sniklas framep->tf_regs[FRAME_A0] = regp->r_regs[R_A0]; 146250ce9ee0Sniklas framep->tf_regs[FRAME_A1] = regp->r_regs[R_A1]; 146350ce9ee0Sniklas framep->tf_regs[FRAME_A2] = regp->r_regs[R_A2]; 1464df930be7Sderaadt framep->tf_regs[FRAME_A3] = regp->r_regs[R_A3]; 1465df930be7Sderaadt framep->tf_regs[FRAME_A4] = regp->r_regs[R_A4]; 1466df930be7Sderaadt framep->tf_regs[FRAME_A5] = regp->r_regs[R_A5]; 1467df930be7Sderaadt framep->tf_regs[FRAME_T8] = regp->r_regs[R_T8]; 1468df930be7Sderaadt framep->tf_regs[FRAME_T9] = regp->r_regs[R_T9]; 1469df930be7Sderaadt framep->tf_regs[FRAME_T10] = regp->r_regs[R_T10]; 1470df930be7Sderaadt framep->tf_regs[FRAME_T11] = regp->r_regs[R_T11]; 1471df930be7Sderaadt framep->tf_regs[FRAME_RA] = regp->r_regs[R_RA]; 1472df930be7Sderaadt framep->tf_regs[FRAME_T12] = regp->r_regs[R_T12]; 1473df930be7Sderaadt framep->tf_regs[FRAME_AT] = regp->r_regs[R_AT]; 147450ce9ee0Sniklas framep->tf_regs[FRAME_GP] = regp->r_regs[R_GP]; 147550ce9ee0Sniklas /* framep->tf_regs[FRAME_SP] = regp->r_regs[R_SP]; XXX */ 1476df930be7Sderaadt /* ??? = regp->r_regs[R_ZERO]; */ 1477df930be7Sderaadt } 1478df930be7Sderaadt 1479df930be7Sderaadt void 1480df930be7Sderaadt printregs(regp) 1481df930be7Sderaadt struct reg *regp; 1482df930be7Sderaadt { 1483df930be7Sderaadt int i; 1484df930be7Sderaadt 1485df930be7Sderaadt for (i = 0; i < 32; i++) 1486df930be7Sderaadt printf("R%d:\t0x%016lx%s", i, regp->r_regs[i], 1487df930be7Sderaadt i & 1 ? "\n" : "\t"); 1488df930be7Sderaadt } 1489df930be7Sderaadt 1490df930be7Sderaadt void 1491df930be7Sderaadt regdump(framep) 1492df930be7Sderaadt struct trapframe *framep; 1493df930be7Sderaadt { 1494df930be7Sderaadt struct reg reg; 1495df930be7Sderaadt 1496df930be7Sderaadt frametoreg(framep, ®); 149750ce9ee0Sniklas reg.r_regs[R_SP] = alpha_pal_rdusp(); 149850ce9ee0Sniklas 1499df930be7Sderaadt printf("REGISTERS:\n"); 1500df930be7Sderaadt printregs(®); 1501df930be7Sderaadt } 1502df930be7Sderaadt 1503df930be7Sderaadt #ifdef DEBUG 1504df930be7Sderaadt int sigdebug = 0; 1505df930be7Sderaadt int sigpid = 0; 1506df930be7Sderaadt #define SDB_FOLLOW 0x01 1507df930be7Sderaadt #define SDB_KSTACK 0x02 1508df930be7Sderaadt #endif 1509df930be7Sderaadt 1510df930be7Sderaadt /* 1511df930be7Sderaadt * Send an interrupt to process. 1512df930be7Sderaadt */ 1513df930be7Sderaadt void 15145e1760a6Sderaadt sendsig(catcher, sig, mask, code, type, val) 1515df930be7Sderaadt sig_t catcher; 1516df930be7Sderaadt int sig, mask; 1517df930be7Sderaadt u_long code; 15185e1760a6Sderaadt int type; 15195e1760a6Sderaadt union sigval val; 1520df930be7Sderaadt { 1521df930be7Sderaadt struct proc *p = curproc; 1522df930be7Sderaadt struct sigcontext *scp, ksc; 1523df930be7Sderaadt struct trapframe *frame; 1524df930be7Sderaadt struct sigacts *psp = p->p_sigacts; 15252bf9c155Sderaadt int oonstack, fsize, rndfsize, kscsize; 15262bf9c155Sderaadt siginfo_t *sip, ksi; 1527df930be7Sderaadt 1528df930be7Sderaadt frame = p->p_md.md_tf; 1529df930be7Sderaadt oonstack = psp->ps_sigstk.ss_flags & SS_ONSTACK; 1530df930be7Sderaadt fsize = sizeof ksc; 1531df930be7Sderaadt rndfsize = ((fsize + 15) / 16) * 16; 15322bf9c155Sderaadt kscsize = rndfsize; 15332bf9c155Sderaadt if (psp->ps_siginfo & sigmask(sig)) { 15342bf9c155Sderaadt fsize += sizeof ksi; 15352bf9c155Sderaadt rndfsize = ((fsize + 15) / 16) * 16; 15362bf9c155Sderaadt } 153774652a67Sniklas 1538df930be7Sderaadt /* 1539df930be7Sderaadt * Allocate and validate space for the signal handler 1540df930be7Sderaadt * context. Note that if the stack is in P0 space, the 1541aed035abSart * call to uvm_grow() is a nop, and the useracc() check 1542df930be7Sderaadt * will fail if the process has not already allocated 1543df930be7Sderaadt * the space with a `brk'. 1544df930be7Sderaadt */ 1545df930be7Sderaadt if ((psp->ps_flags & SAS_ALTSTACK) && !oonstack && 1546df930be7Sderaadt (psp->ps_sigonstack & sigmask(sig))) { 15478bc2093aSderaadt scp = (struct sigcontext *)(psp->ps_sigstk.ss_sp + 1548df930be7Sderaadt psp->ps_sigstk.ss_size - rndfsize); 1549df930be7Sderaadt psp->ps_sigstk.ss_flags |= SS_ONSTACK; 1550df930be7Sderaadt } else 155150ce9ee0Sniklas scp = (struct sigcontext *)(alpha_pal_rdusp() - rndfsize); 1552df930be7Sderaadt if ((u_long)scp <= USRSTACK - ctob(p->p_vmspace->vm_ssize)) 1553aed035abSart (void)uvm_grow(p, (u_long)scp); 1554df930be7Sderaadt #ifdef DEBUG 1555df930be7Sderaadt if ((sigdebug & SDB_KSTACK) && p->p_pid == sigpid) 155650ce9ee0Sniklas printf("sendsig(%d): sig %d ssp %p usp %p\n", p->p_pid, 1557df930be7Sderaadt sig, &oonstack, scp); 1558df930be7Sderaadt #endif 1559aed035abSart if (uvm_useracc((caddr_t)scp, fsize, B_WRITE) == 0) { 1560df930be7Sderaadt #ifdef DEBUG 1561df930be7Sderaadt if ((sigdebug & SDB_KSTACK) && p->p_pid == sigpid) 1562aed035abSart printf("sendsig(%d): uvm_useracc failed on sig %d\n", 1563df930be7Sderaadt p->p_pid, sig); 1564df930be7Sderaadt #endif 1565df930be7Sderaadt /* 1566df930be7Sderaadt * Process has trashed its stack; give it an illegal 1567df930be7Sderaadt * instruction to halt it in its tracks. 1568df930be7Sderaadt */ 1569df930be7Sderaadt SIGACTION(p, SIGILL) = SIG_DFL; 1570df930be7Sderaadt sig = sigmask(SIGILL); 1571df930be7Sderaadt p->p_sigignore &= ~sig; 1572df930be7Sderaadt p->p_sigcatch &= ~sig; 1573df930be7Sderaadt p->p_sigmask &= ~sig; 1574df930be7Sderaadt psignal(p, SIGILL); 1575df930be7Sderaadt return; 1576df930be7Sderaadt } 1577df930be7Sderaadt 1578df930be7Sderaadt /* 1579df930be7Sderaadt * Build the signal context to be used by sigreturn. 1580df930be7Sderaadt */ 1581df930be7Sderaadt ksc.sc_onstack = oonstack; 1582df930be7Sderaadt ksc.sc_mask = mask; 158350ce9ee0Sniklas ksc.sc_pc = frame->tf_regs[FRAME_PC]; 158450ce9ee0Sniklas ksc.sc_ps = frame->tf_regs[FRAME_PS]; 1585df930be7Sderaadt 1586df930be7Sderaadt /* copy the registers. */ 1587df930be7Sderaadt frametoreg(frame, (struct reg *)ksc.sc_regs); 1588df930be7Sderaadt ksc.sc_regs[R_ZERO] = 0xACEDBADE; /* magic number */ 158950ce9ee0Sniklas ksc.sc_regs[R_SP] = alpha_pal_rdusp(); 1590df930be7Sderaadt 1591df930be7Sderaadt /* save the floating-point state, if necessary, then copy it. */ 1592433075b6Spvalchev if (p->p_addr->u_pcb.pcb_fpcpu != NULL) 1593433075b6Spvalchev fpusave_proc(p, 1); 1594df930be7Sderaadt ksc.sc_ownedfp = p->p_md.md_flags & MDP_FPUSED; 1595433075b6Spvalchev memcpy((struct fpreg *)ksc.sc_fpregs, &p->p_addr->u_pcb.pcb_fp, 1596df930be7Sderaadt sizeof(struct fpreg)); 1597433075b6Spvalchev #ifndef NO_IEEE 1598433075b6Spvalchev ksc.sc_fp_control = alpha_read_fp_c(p); 1599433075b6Spvalchev #else 1600433075b6Spvalchev ksc.sc_fp_control = 0; 1601433075b6Spvalchev #endif 1602433075b6Spvalchev memset(ksc.sc_reserved, 0, sizeof ksc.sc_reserved); /* XXX */ 1603433075b6Spvalchev memset(ksc.sc_xxx, 0, sizeof ksc.sc_xxx); /* XXX */ 1604df930be7Sderaadt 1605df930be7Sderaadt #ifdef COMPAT_OSF1 1606df930be7Sderaadt /* 1607df930be7Sderaadt * XXX Create an OSF/1-style sigcontext and associated goo. 1608df930be7Sderaadt */ 1609df930be7Sderaadt #endif 1610df930be7Sderaadt 16112bf9c155Sderaadt if (psp->ps_siginfo & sigmask(sig)) { 16122bf9c155Sderaadt initsiginfo(&ksi, sig, code, type, val); 16132bf9c155Sderaadt sip = (void *)scp + kscsize; 16142bf9c155Sderaadt (void) copyout((caddr_t)&ksi, (caddr_t)sip, fsize - kscsize); 1615aa540fb8Sart } else 1616aa540fb8Sart sip = NULL; 16172bf9c155Sderaadt 1618df930be7Sderaadt /* 1619df930be7Sderaadt * copy the frame out to userland. 1620df930be7Sderaadt */ 16212bf9c155Sderaadt (void) copyout((caddr_t)&ksc, (caddr_t)scp, kscsize); 1622df930be7Sderaadt #ifdef DEBUG 1623df930be7Sderaadt if (sigdebug & SDB_FOLLOW) 162450ce9ee0Sniklas printf("sendsig(%d): sig %d scp %p code %lx\n", p->p_pid, sig, 1625df930be7Sderaadt scp, code); 1626df930be7Sderaadt #endif 1627df930be7Sderaadt 1628df930be7Sderaadt /* 1629df930be7Sderaadt * Set up the registers to return to sigcode. 1630df930be7Sderaadt */ 16314a5480feSart frame->tf_regs[FRAME_PC] = p->p_sigcode; 163250ce9ee0Sniklas frame->tf_regs[FRAME_A0] = sig; 1633aa540fb8Sart frame->tf_regs[FRAME_A1] = (u_int64_t)sip; 163450ce9ee0Sniklas frame->tf_regs[FRAME_A2] = (u_int64_t)scp; 1635df930be7Sderaadt frame->tf_regs[FRAME_T12] = (u_int64_t)catcher; /* t12 is pv */ 163650ce9ee0Sniklas alpha_pal_wrusp((unsigned long)scp); 1637df930be7Sderaadt 1638df930be7Sderaadt #ifdef DEBUG 1639df930be7Sderaadt if (sigdebug & SDB_FOLLOW) 1640df930be7Sderaadt printf("sendsig(%d): pc %lx, catcher %lx\n", p->p_pid, 164150ce9ee0Sniklas frame->tf_regs[FRAME_PC], frame->tf_regs[FRAME_A3]); 1642df930be7Sderaadt if ((sigdebug & SDB_KSTACK) && p->p_pid == sigpid) 1643df930be7Sderaadt printf("sendsig(%d): sig %d returns\n", 1644df930be7Sderaadt p->p_pid, sig); 1645df930be7Sderaadt #endif 1646df930be7Sderaadt } 1647df930be7Sderaadt 1648df930be7Sderaadt /* 1649df930be7Sderaadt * System call to cleanup state after a signal 1650df930be7Sderaadt * has been taken. Reset signal mask and 1651df930be7Sderaadt * stack state from context left by sendsig (above). 1652df930be7Sderaadt * Return to previous pc and psl as specified by 1653df930be7Sderaadt * context left by sendsig. Check carefully to 1654df930be7Sderaadt * make sure that the user has not modified the 1655125cd19fSderaadt * psl to gain improper privileges or to cause 1656df930be7Sderaadt * a machine fault. 1657df930be7Sderaadt */ 1658df930be7Sderaadt /* ARGSUSED */ 1659df930be7Sderaadt int 1660df930be7Sderaadt sys_sigreturn(p, v, retval) 1661df930be7Sderaadt struct proc *p; 1662df930be7Sderaadt void *v; 1663df930be7Sderaadt register_t *retval; 1664df930be7Sderaadt { 1665df930be7Sderaadt struct sys_sigreturn_args /* { 1666df930be7Sderaadt syscallarg(struct sigcontext *) sigcntxp; 1667df930be7Sderaadt } */ *uap = v; 1668aa540fb8Sart struct sigcontext ksc; 1669aa540fb8Sart int error; 1670df930be7Sderaadt 1671df930be7Sderaadt #ifdef DEBUG 1672df930be7Sderaadt if (sigdebug & SDB_FOLLOW) 167350ce9ee0Sniklas printf("sigreturn: pid %d, scp %p\n", p->p_pid, scp); 1674df930be7Sderaadt #endif 1675df930be7Sderaadt 1676df930be7Sderaadt /* 1677df930be7Sderaadt * Test and fetch the context structure. 1678df930be7Sderaadt * We grab it all at once for speed. 1679df930be7Sderaadt */ 1680aa540fb8Sart if ((error = copyin(SCARG(uap, sigcntxp), &ksc, sizeof(ksc))) != 0) 1681aa540fb8Sart return (error); 1682df930be7Sderaadt 1683df930be7Sderaadt if (ksc.sc_regs[R_ZERO] != 0xACEDBADE) /* magic number */ 1684df930be7Sderaadt return (EINVAL); 1685df930be7Sderaadt /* 1686df930be7Sderaadt * Restore the user-supplied information 1687df930be7Sderaadt */ 1688df930be7Sderaadt if (ksc.sc_onstack) 1689df930be7Sderaadt p->p_sigacts->ps_sigstk.ss_flags |= SS_ONSTACK; 1690df930be7Sderaadt else 1691df930be7Sderaadt p->p_sigacts->ps_sigstk.ss_flags &= ~SS_ONSTACK; 1692df930be7Sderaadt p->p_sigmask = ksc.sc_mask &~ sigcantmask; 1693df930be7Sderaadt 169450ce9ee0Sniklas p->p_md.md_tf->tf_regs[FRAME_PC] = ksc.sc_pc; 169550ce9ee0Sniklas p->p_md.md_tf->tf_regs[FRAME_PS] = 169650ce9ee0Sniklas (ksc.sc_ps | ALPHA_PSL_USERSET) & ~ALPHA_PSL_USERCLR; 1697df930be7Sderaadt 1698df930be7Sderaadt regtoframe((struct reg *)ksc.sc_regs, p->p_md.md_tf); 169950ce9ee0Sniklas alpha_pal_wrusp(ksc.sc_regs[R_SP]); 1700df930be7Sderaadt 1701df930be7Sderaadt /* XXX ksc.sc_ownedfp ? */ 1702433075b6Spvalchev if (p->p_addr->u_pcb.pcb_fpcpu != NULL) 1703433075b6Spvalchev fpusave_proc(p, 0); 1704433075b6Spvalchev memcpy(&p->p_addr->u_pcb.pcb_fp, (struct fpreg *)ksc.sc_fpregs, 1705df930be7Sderaadt sizeof(struct fpreg)); 1706433075b6Spvalchev #ifndef NO_IEEE 1707433075b6Spvalchev p->p_addr->u_pcb.pcb_fp.fpr_cr = ksc.sc_fpcr; 1708433075b6Spvalchev p->p_md.md_flags = ksc.sc_fp_control & MDP_FP_C; 1709433075b6Spvalchev #endif 1710df930be7Sderaadt 1711df930be7Sderaadt #ifdef DEBUG 1712df930be7Sderaadt if (sigdebug & SDB_FOLLOW) 1713df930be7Sderaadt printf("sigreturn(%d): returns\n", p->p_pid); 1714df930be7Sderaadt #endif 1715df930be7Sderaadt return (EJUSTRETURN); 1716df930be7Sderaadt } 1717df930be7Sderaadt 1718df930be7Sderaadt /* 1719df930be7Sderaadt * machine dependent system variables. 1720df930be7Sderaadt */ 172150ce9ee0Sniklas int 1722df930be7Sderaadt cpu_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 1723df930be7Sderaadt int *name; 1724df930be7Sderaadt u_int namelen; 1725df930be7Sderaadt void *oldp; 1726df930be7Sderaadt size_t *oldlenp; 1727df930be7Sderaadt void *newp; 1728df930be7Sderaadt size_t newlen; 1729df930be7Sderaadt struct proc *p; 1730df930be7Sderaadt { 1731df930be7Sderaadt dev_t consdev; 1732df930be7Sderaadt 173345e5a1a0Sart if (name[0] != CPU_CHIPSET && namelen != 1) 1734df930be7Sderaadt return (ENOTDIR); /* overloaded */ 1735df930be7Sderaadt 1736df930be7Sderaadt switch (name[0]) { 1737df930be7Sderaadt case CPU_CONSDEV: 1738df930be7Sderaadt if (cn_tab != NULL) 1739df930be7Sderaadt consdev = cn_tab->cn_dev; 1740df930be7Sderaadt else 1741df930be7Sderaadt consdev = NODEV; 1742df930be7Sderaadt return (sysctl_rdstruct(oldp, oldlenp, newp, &consdev, 1743df930be7Sderaadt sizeof consdev)); 1744417eba8cSderaadt 1745417eba8cSderaadt case CPU_ROOT_DEVICE: 1746aed035abSart return (sysctl_rdstring(oldp, oldlenp, newp, 1747aed035abSart root_device)); 1748417eba8cSderaadt 174950ce9ee0Sniklas case CPU_UNALIGNED_PRINT: 175050ce9ee0Sniklas return (sysctl_int(oldp, oldlenp, newp, newlen, 175150ce9ee0Sniklas &alpha_unaligned_print)); 175250ce9ee0Sniklas 175350ce9ee0Sniklas case CPU_UNALIGNED_FIX: 175450ce9ee0Sniklas return (sysctl_int(oldp, oldlenp, newp, newlen, 175550ce9ee0Sniklas &alpha_unaligned_fix)); 175650ce9ee0Sniklas 175750ce9ee0Sniklas case CPU_UNALIGNED_SIGBUS: 175850ce9ee0Sniklas return (sysctl_int(oldp, oldlenp, newp, newlen, 175950ce9ee0Sniklas &alpha_unaligned_sigbus)); 176050ce9ee0Sniklas 17613a630e3fSniklas case CPU_BOOTED_KERNEL: 1762aed035abSart return (sysctl_rdstring(oldp, oldlenp, newp, 1763aed035abSart bootinfo.booted_kernel)); 17643a630e3fSniklas 176545e5a1a0Sart case CPU_CHIPSET: 176645e5a1a0Sart return (alpha_sysctl_chipset(name + 1, namelen - 1, oldp, 176745e5a1a0Sart oldlenp)); 1768433075b6Spvalchev 1769433075b6Spvalchev #ifndef NO_IEEE 1770433075b6Spvalchev case CPU_FP_SYNC_COMPLETE: 1771433075b6Spvalchev return (sysctl_int(oldp, oldlenp, newp, newlen, 1772433075b6Spvalchev &alpha_fp_sync_complete)); 1773433075b6Spvalchev #endif 177427626149Smatthieu case CPU_ALLOWAPERTURE: 177527626149Smatthieu #ifdef APERTURE 177627626149Smatthieu if (securelevel > 0) 177727626149Smatthieu return (sysctl_rdint(oldp, oldlenp, newp, 177827626149Smatthieu allowaperture)); 177927626149Smatthieu else 178027626149Smatthieu return (sysctl_int(oldp, oldlenp, newp, newlen, 178127626149Smatthieu &allowaperture)); 178227626149Smatthieu #else 178327626149Smatthieu return (sysctl_rdint(oldp, oldlenp, newp, 0)); 178427626149Smatthieu #endif 1785df930be7Sderaadt default: 1786df930be7Sderaadt return (EOPNOTSUPP); 1787df930be7Sderaadt } 1788df930be7Sderaadt /* NOTREACHED */ 1789df930be7Sderaadt } 1790df930be7Sderaadt 1791df930be7Sderaadt /* 1792df930be7Sderaadt * Set registers on exec. 1793df930be7Sderaadt */ 1794df930be7Sderaadt void 1795df930be7Sderaadt setregs(p, pack, stack, retval) 1796df930be7Sderaadt register struct proc *p; 1797df930be7Sderaadt struct exec_package *pack; 1798df930be7Sderaadt u_long stack; 1799df930be7Sderaadt register_t *retval; 1800df930be7Sderaadt { 1801df930be7Sderaadt struct trapframe *tfp = p->p_md.md_tf; 18023a630e3fSniklas #ifdef DEBUG 18033a630e3fSniklas int i; 18043a630e3fSniklas #endif 1805df930be7Sderaadt 1806df930be7Sderaadt #ifdef DEBUG 180750ce9ee0Sniklas /* 180850ce9ee0Sniklas * Crash and dump, if the user requested it. 180950ce9ee0Sniklas */ 181050ce9ee0Sniklas if (boothowto & RB_DUMP) 181150ce9ee0Sniklas panic("crash requested by boot flags"); 181250ce9ee0Sniklas #endif 181350ce9ee0Sniklas 181450ce9ee0Sniklas #ifdef DEBUG 181550ce9ee0Sniklas for (i = 0; i < FRAME_SIZE; i++) 1816df930be7Sderaadt tfp->tf_regs[i] = 0xbabefacedeadbeef; 1817df930be7Sderaadt #else 181850ce9ee0Sniklas bzero(tfp->tf_regs, FRAME_SIZE * sizeof tfp->tf_regs[0]); 1819df930be7Sderaadt #endif 1820df930be7Sderaadt bzero(&p->p_addr->u_pcb.pcb_fp, sizeof p->p_addr->u_pcb.pcb_fp); 182150ce9ee0Sniklas alpha_pal_wrusp(stack); 182250ce9ee0Sniklas tfp->tf_regs[FRAME_PS] = ALPHA_PSL_USERSET; 182350ce9ee0Sniklas tfp->tf_regs[FRAME_PC] = pack->ep_entry & ~3; 1824df930be7Sderaadt 182550ce9ee0Sniklas tfp->tf_regs[FRAME_A0] = stack; 182650ce9ee0Sniklas /* a1 and a2 already zeroed */ 182750ce9ee0Sniklas tfp->tf_regs[FRAME_T12] = tfp->tf_regs[FRAME_PC]; /* a.k.a. PV */ 182850ce9ee0Sniklas 182950ce9ee0Sniklas p->p_md.md_flags &= ~MDP_FPUSED; 1830433075b6Spvalchev #ifndef NO_IEEE 1831433075b6Spvalchev if (__predict_true((p->p_md.md_flags & IEEE_INHERIT) == 0)) { 1832433075b6Spvalchev p->p_md.md_flags &= ~MDP_FP_C; 1833433075b6Spvalchev p->p_addr->u_pcb.pcb_fp.fpr_cr = FPCR_DYN(FP_RN); 1834433075b6Spvalchev } 1835433075b6Spvalchev #endif 1836433075b6Spvalchev if (p->p_addr->u_pcb.pcb_fpcpu != NULL) 1837433075b6Spvalchev fpusave_proc(p, 0); 1838433075b6Spvalchev } 1839df930be7Sderaadt 1840433075b6Spvalchev /* 1841433075b6Spvalchev * Release the FPU. 1842433075b6Spvalchev */ 1843433075b6Spvalchev void 1844433075b6Spvalchev fpusave_cpu(struct cpu_info *ci, int save) 1845433075b6Spvalchev { 1846433075b6Spvalchev struct proc *p; 1847433075b6Spvalchev #if defined(MULTIPROCESSOR) 1848433075b6Spvalchev int s; 1849433075b6Spvalchev #endif 1850433075b6Spvalchev 1851433075b6Spvalchev KDASSERT(ci == curcpu()); 1852433075b6Spvalchev 1853433075b6Spvalchev #if defined(MULTIPROCESSOR) 1854433075b6Spvalchev atomic_setbits_ulong(&ci->ci_flags, CPUF_FPUSAVE); 1855433075b6Spvalchev #endif 1856433075b6Spvalchev 1857433075b6Spvalchev p = ci->ci_fpcurproc; 1858433075b6Spvalchev if (p == NULL) 1859433075b6Spvalchev goto out; 1860433075b6Spvalchev 1861433075b6Spvalchev if (save) { 1862433075b6Spvalchev alpha_pal_wrfen(1); 1863433075b6Spvalchev savefpstate(&p->p_addr->u_pcb.pcb_fp); 1864433075b6Spvalchev } 1865433075b6Spvalchev 1866433075b6Spvalchev alpha_pal_wrfen(0); 1867433075b6Spvalchev 1868433075b6Spvalchev p->p_addr->u_pcb.pcb_fpcpu = NULL; 1869433075b6Spvalchev ci->ci_fpcurproc = NULL; 1870433075b6Spvalchev 1871433075b6Spvalchev out: 1872433075b6Spvalchev #if defined(MULTIPROCESSOR) 1873433075b6Spvalchev atomic_clearbits_ulong(&ci->ci_flags, CPUF_FPUSAVE); 1874433075b6Spvalchev #endif 1875433075b6Spvalchev return; 1876433075b6Spvalchev } 1877433075b6Spvalchev 1878433075b6Spvalchev /* 1879433075b6Spvalchev * Synchronize FP state for this process. 1880433075b6Spvalchev */ 1881433075b6Spvalchev void 1882433075b6Spvalchev fpusave_proc(struct proc *p, int save) 1883433075b6Spvalchev { 1884433075b6Spvalchev struct cpu_info *ci = curcpu(); 1885433075b6Spvalchev struct cpu_info *oci; 1886433075b6Spvalchev #if defined(MULTIPROCESSOR) 1887433075b6Spvalchev u_long ipi = save ? ALPHA_IPI_SYNCH_FPU : ALPHA_IPI_DISCARD_FPU; 1888433075b6Spvalchev int s, spincount; 1889433075b6Spvalchev #endif 1890433075b6Spvalchev 1891433075b6Spvalchev KDASSERT(p->p_addr != NULL); 1892433075b6Spvalchev KDASSERT(p->p_flag & P_INMEM); 1893433075b6Spvalchev 1894433075b6Spvalchev oci = p->p_addr->u_pcb.pcb_fpcpu; 1895433075b6Spvalchev if (oci == NULL) { 1896433075b6Spvalchev return; 1897433075b6Spvalchev } 1898433075b6Spvalchev 1899433075b6Spvalchev #if defined(MULTIPROCESSOR) 1900433075b6Spvalchev if (oci == ci) { 1901433075b6Spvalchev KASSERT(ci->ci_fpcurproc == p); 1902433075b6Spvalchev fpusave_cpu(ci, save); 1903433075b6Spvalchev return; 1904433075b6Spvalchev } 1905433075b6Spvalchev 1906433075b6Spvalchev KASSERT(oci->ci_fpcurproc == p); 1907433075b6Spvalchev alpha_send_ipi(oci->ci_cpuid, ipi); 1908433075b6Spvalchev 1909433075b6Spvalchev spincount = 0; 1910433075b6Spvalchev while (p->p_addr->u_pcb.pcb_fpcpu != NULL) { 1911433075b6Spvalchev spincount++; 1912433075b6Spvalchev delay(1000); /* XXX */ 1913433075b6Spvalchev if (spincount > 10000) 1914433075b6Spvalchev panic("fpsave ipi didn't"); 1915433075b6Spvalchev } 1916433075b6Spvalchev #else 1917433075b6Spvalchev KASSERT(ci->ci_fpcurproc == p); 1918433075b6Spvalchev fpusave_cpu(ci, save); 1919433075b6Spvalchev #endif /* MULTIPROCESSOR */ 1920df930be7Sderaadt } 1921df930be7Sderaadt 1922df930be7Sderaadt int 1923df930be7Sderaadt spl0() 1924df930be7Sderaadt { 1925df930be7Sderaadt 1926aed035abSart if (ssir) { 1927aed035abSart (void) alpha_pal_swpipl(ALPHA_PSL_IPL_SOFT); 19282a2685f2Sart softintr_dispatch(); 1929aed035abSart } 1930df930be7Sderaadt 193150ce9ee0Sniklas return (alpha_pal_swpipl(ALPHA_PSL_IPL_0)); 1932df930be7Sderaadt } 1933df930be7Sderaadt 1934df930be7Sderaadt /* 1935df930be7Sderaadt * The following primitives manipulate the run queues. _whichqs tells which 1936df930be7Sderaadt * of the 32 queues _qs have processes in them. Setrunqueue puts processes 1937e464495eSniklas * into queues, Remrunqueue removes them from queues. The running process is 1938e464495eSniklas * on no queue, other processes are on a queue related to p->p_priority, 1939e464495eSniklas * divided by 4 actually to shrink the 0-127 range of priorities into the 32 1940e464495eSniklas * available queues. 1941df930be7Sderaadt */ 1942df930be7Sderaadt /* 1943df930be7Sderaadt * setrunqueue(p) 1944df930be7Sderaadt * proc *p; 1945df930be7Sderaadt * 1946df930be7Sderaadt * Call should be made at splclock(), and p->p_stat should be SRUN. 1947df930be7Sderaadt */ 1948df930be7Sderaadt 19492a2685f2Sart /* XXXART - grmble */ 19502a2685f2Sart #define sched_qs qs 19512a2685f2Sart #define sched_whichqs whichqs 19522a2685f2Sart 1953df930be7Sderaadt void 1954df930be7Sderaadt setrunqueue(p) 1955df930be7Sderaadt struct proc *p; 1956df930be7Sderaadt { 1957df930be7Sderaadt int bit; 1958df930be7Sderaadt 1959df930be7Sderaadt /* firewall: p->p_back must be NULL */ 1960df930be7Sderaadt if (p->p_back != NULL) 1961df930be7Sderaadt panic("setrunqueue"); 1962df930be7Sderaadt 1963df930be7Sderaadt bit = p->p_priority >> 2; 19642a2685f2Sart sched_whichqs |= (1 << bit); 19652a2685f2Sart p->p_forw = (struct proc *)&sched_qs[bit]; 19662a2685f2Sart p->p_back = sched_qs[bit].ph_rlink; 1967df930be7Sderaadt p->p_back->p_forw = p; 19682a2685f2Sart sched_qs[bit].ph_rlink = p; 1969df930be7Sderaadt } 1970df930be7Sderaadt 1971df930be7Sderaadt /* 1972e464495eSniklas * remrunqueue(p) 1973df930be7Sderaadt * 1974df930be7Sderaadt * Call should be made at splclock(). 1975df930be7Sderaadt */ 1976df930be7Sderaadt void 1977d3cbbad5Skstailey remrunqueue(p) 1978df930be7Sderaadt struct proc *p; 1979df930be7Sderaadt { 1980df930be7Sderaadt int bit; 1981df930be7Sderaadt 1982df930be7Sderaadt bit = p->p_priority >> 2; 19832a2685f2Sart if ((sched_whichqs & (1 << bit)) == 0) 1984d3cbbad5Skstailey panic("remrunqueue"); 1985df930be7Sderaadt 1986df930be7Sderaadt p->p_back->p_forw = p->p_forw; 1987df930be7Sderaadt p->p_forw->p_back = p->p_back; 1988df930be7Sderaadt p->p_back = NULL; /* for firewall checking. */ 1989df930be7Sderaadt 19902a2685f2Sart if ((struct proc *)&sched_qs[bit] == sched_qs[bit].ph_link) 19912a2685f2Sart sched_whichqs &= ~(1 << bit); 1992df930be7Sderaadt } 1993df930be7Sderaadt 1994df930be7Sderaadt /* 1995df930be7Sderaadt * Return the best possible estimate of the time in the timeval 1996df930be7Sderaadt * to which tvp points. Unfortunately, we can't read the hardware registers. 1997df930be7Sderaadt * We guarantee that the time will be greater than the value obtained by a 1998df930be7Sderaadt * previous call. 1999df930be7Sderaadt */ 2000df930be7Sderaadt void 2001df930be7Sderaadt microtime(tvp) 2002df930be7Sderaadt register struct timeval *tvp; 2003df930be7Sderaadt { 2004df930be7Sderaadt int s = splclock(); 2005df930be7Sderaadt static struct timeval lasttime; 2006df930be7Sderaadt 2007df930be7Sderaadt *tvp = time; 2008df930be7Sderaadt #ifdef notdef 2009df930be7Sderaadt tvp->tv_usec += clkread(); 20104c891e15Spjanzen while (tvp->tv_usec >= 1000000) { 2011df930be7Sderaadt tvp->tv_sec++; 2012df930be7Sderaadt tvp->tv_usec -= 1000000; 2013df930be7Sderaadt } 2014df930be7Sderaadt #endif 2015df930be7Sderaadt if (tvp->tv_sec == lasttime.tv_sec && 2016df930be7Sderaadt tvp->tv_usec <= lasttime.tv_usec && 20174c891e15Spjanzen (tvp->tv_usec = lasttime.tv_usec + 1) >= 1000000) { 2018df930be7Sderaadt tvp->tv_sec++; 2019df930be7Sderaadt tvp->tv_usec -= 1000000; 2020df930be7Sderaadt } 2021df930be7Sderaadt lasttime = *tvp; 2022df930be7Sderaadt splx(s); 2023df930be7Sderaadt } 2024df930be7Sderaadt 2025417eba8cSderaadt /* 2026417eba8cSderaadt * Wait "n" microseconds. 2027417eba8cSderaadt */ 202850ce9ee0Sniklas void 2029417eba8cSderaadt delay(n) 203050ce9ee0Sniklas unsigned long n; 2031417eba8cSderaadt { 2032417eba8cSderaadt long N = cycles_per_usec * (n); 2033417eba8cSderaadt 2034aed035abSart /* 2035aed035abSart * XXX Should be written to use RPCC? 2036aed035abSart */ 2037aed035abSart 2038aed035abSart __asm __volatile( 2039aed035abSart "# The 2 corresponds to the insn count\n" 2040aed035abSart "1: subq %2, %1, %0 \n" 2041aed035abSart " bgt %0, 1b" 2042aed035abSart : "=r" (N) 2043aed035abSart : "i" (2), "0" (N)); 2044417eba8cSderaadt } 2045417eba8cSderaadt 2046df930be7Sderaadt #if defined(COMPAT_OSF1) || 1 /* XXX */ 2047c4071fd1Smillert void cpu_exec_ecoff_setregs(struct proc *, struct exec_package *, 2048c4071fd1Smillert u_long, register_t *); 20493a630e3fSniklas 2050df930be7Sderaadt void 2051417eba8cSderaadt cpu_exec_ecoff_setregs(p, epp, stack, retval) 2052df930be7Sderaadt struct proc *p; 2053417eba8cSderaadt struct exec_package *epp; 2054df930be7Sderaadt u_long stack; 2055df930be7Sderaadt register_t *retval; 2056df930be7Sderaadt { 2057417eba8cSderaadt struct ecoff_exechdr *execp = (struct ecoff_exechdr *)epp->ep_hdr; 2058df930be7Sderaadt 2059417eba8cSderaadt setregs(p, epp, stack, retval); 206050ce9ee0Sniklas p->p_md.md_tf->tf_regs[FRAME_GP] = execp->a.gp_value; 2061df930be7Sderaadt } 2062df930be7Sderaadt 2063df930be7Sderaadt /* 2064df930be7Sderaadt * cpu_exec_ecoff_hook(): 2065df930be7Sderaadt * cpu-dependent ECOFF format hook for execve(). 2066df930be7Sderaadt * 2067df930be7Sderaadt * Do any machine-dependent diddling of the exec package when doing ECOFF. 2068df930be7Sderaadt * 2069df930be7Sderaadt */ 2070df930be7Sderaadt int 2071417eba8cSderaadt cpu_exec_ecoff_hook(p, epp) 2072df930be7Sderaadt struct proc *p; 2073df930be7Sderaadt struct exec_package *epp; 2074df930be7Sderaadt { 2075417eba8cSderaadt struct ecoff_exechdr *execp = (struct ecoff_exechdr *)epp->ep_hdr; 2076c3114d5bSericj extern struct emul emul_native; 2077aed035abSart int error; 20784e8700e2Sericj extern int osf1_exec_ecoff_hook(struct proc *, struct exec_package *); 2079df930be7Sderaadt 2080417eba8cSderaadt switch (execp->f.f_magic) { 2081df930be7Sderaadt #ifdef COMPAT_OSF1 2082df930be7Sderaadt case ECOFF_MAGIC_ALPHA: 20834e8700e2Sericj error = osf1_exec_ecoff_hook(p, epp); 2084df930be7Sderaadt break; 2085df930be7Sderaadt #endif 2086df930be7Sderaadt 208750ce9ee0Sniklas case ECOFF_MAGIC_NATIVE_ALPHA: 2088a2f8ce8dSderaadt epp->ep_emul = &emul_native; 2089aed035abSart error = 0; 2090df930be7Sderaadt break; 2091df930be7Sderaadt 2092df930be7Sderaadt default: 2093aed035abSart error = ENOEXEC; 2094df930be7Sderaadt } 2095aed035abSart return (error); 2096df930be7Sderaadt } 2097df930be7Sderaadt #endif 2098e464495eSniklas 2099aed035abSart int 2100aed035abSart alpha_pa_access(pa) 2101aed035abSart u_long pa; 2102aed035abSart { 2103aed035abSart int i; 2104aed035abSart 2105aed035abSart for (i = 0; i < mem_cluster_cnt; i++) { 2106aed035abSart if (pa < mem_clusters[i].start) 2107aed035abSart continue; 2108aed035abSart if ((pa - mem_clusters[i].start) >= 2109aed035abSart (mem_clusters[i].size & ~PAGE_MASK)) 2110aed035abSart continue; 2111aed035abSart return (mem_clusters[i].size & PAGE_MASK); /* prot */ 2112aed035abSart } 2113aed035abSart 2114aed035abSart /* 2115aed035abSart * Address is not a memory address. If we're secure, disallow 2116aed035abSart * access. Otherwise, grant read/write. 2117aed035abSart */ 2118aed035abSart if (securelevel > 0) 2119aed035abSart return (VM_PROT_NONE); 2120aed035abSart else 2121aed035abSart return (VM_PROT_READ | VM_PROT_WRITE); 2122aed035abSart } 2123aed035abSart 2124e464495eSniklas /* XXX XXX BEGIN XXX XXX */ 2125aed035abSart paddr_t alpha_XXX_dmamap_or; /* XXX */ 2126e464495eSniklas /* XXX */ 2127aed035abSart paddr_t /* XXX */ 2128e464495eSniklas alpha_XXX_dmamap(v) /* XXX */ 2129aed035abSart vaddr_t v; /* XXX */ 2130e464495eSniklas { /* XXX */ 2131e464495eSniklas /* XXX */ 2132e464495eSniklas return (vtophys(v) | alpha_XXX_dmamap_or); /* XXX */ 2133e464495eSniklas } /* XXX */ 2134e464495eSniklas /* XXX XXX END XXX XXX */ 2135aed035abSart 2136aed035abSart char * 2137aed035abSart dot_conv(x) 2138aed035abSart unsigned long x; 2139aed035abSart { 2140aed035abSart int i; 2141aed035abSart char *xc; 2142aed035abSart static int next; 2143aed035abSart static char space[2][20]; 2144aed035abSart 2145aed035abSart xc = space[next ^= 1] + sizeof space[0]; 2146aed035abSart *--xc = '\0'; 2147aed035abSart for (i = 0;; ++i) { 2148aed035abSart if (i && (i & 3) == 0) 2149aed035abSart *--xc = '.'; 2150aed035abSart *--xc = "0123456789abcdef"[x & 0xf]; 2151aed035abSart x >>= 4; 2152aed035abSart if (x == 0) 2153aed035abSart break; 2154aed035abSart } 2155aed035abSart return xc; 2156aed035abSart } 2157