1*a37778bcSderaadt /* $OpenBSD: machdep.c,v 1.91 2005/04/28 17:19:27 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 194aed035abSart struct bootinfo_kernel bootinfo; 195aed035abSart 196aed035abSart /* For built-in TCDS */ 197aed035abSart #if defined(DEC_3000_300) || defined(DEC_3000_500) 198aed035abSart u_int8_t dec_3000_scsiid[2], dec_3000_scsifast[2]; 199aed035abSart #endif 200aed035abSart 201aed035abSart struct platform platform; 202417eba8cSderaadt 203417eba8cSderaadt /* for cpu_sysctl() */ 20450ce9ee0Sniklas int alpha_unaligned_print = 1; /* warn about unaligned accesses */ 20550ce9ee0Sniklas int alpha_unaligned_fix = 1; /* fix up unaligned accesses */ 206881c1eabSart int alpha_unaligned_sigbus = 1; /* SIGBUS on fixed-up accesses */ 207433075b6Spvalchev #ifndef NO_IEEE 208433075b6Spvalchev int alpha_fp_sync_complete = 0; /* fp fixup if sync even without /s */ 209433075b6Spvalchev #endif 21050ce9ee0Sniklas 211aed035abSart /* 212aed035abSart * XXX This should be dynamically sized, but we have the chicken-egg problem! 213aed035abSart * XXX it should also be larger than it is, because not all of the mddt 214aed035abSart * XXX clusters end up being used for VM. 215aed035abSart */ 216aed035abSart phys_ram_seg_t mem_clusters[VM_PHYSSEG_MAX]; /* low size bits overloaded */ 217aed035abSart int mem_cluster_cnt; 218aed035abSart 2193a630e3fSniklas void 220aed035abSart alpha_init(pfn, ptb, bim, bip, biv) 221df930be7Sderaadt u_long pfn; /* first free PFN number */ 222df930be7Sderaadt u_long ptb; /* PFN of current level 1 page table */ 223aed035abSart u_long bim; /* bootinfo magic */ 224aed035abSart u_long bip; /* bootinfo pointer */ 225aed035abSart u_long biv; /* bootinfo version */ 226df930be7Sderaadt { 227aed035abSart extern char kernel_text[], _end[]; 228df930be7Sderaadt struct mddt *mddtp; 229aed035abSart struct mddt_cluster *memc; 230df930be7Sderaadt int i, mddtweird; 231aed035abSart struct vm_physseg *vps; 232aed035abSart vaddr_t kernstart, kernend; 233aed035abSart paddr_t kernstartpfn, kernendpfn, pfn0, pfn1; 234aed035abSart vsize_t size; 235df930be7Sderaadt char *p; 236aed035abSart caddr_t v; 2372a2685f2Sart const char *bootinfo_msg; 238aed035abSart const struct cpuinit *c; 239aed035abSart extern caddr_t esym; 240aed035abSart struct cpu_info *ci; 241aed035abSart cpuid_t cpu_id; 242df930be7Sderaadt 243aed035abSart /* NO OUTPUT ALLOWED UNTIL FURTHER NOTICE */ 244f3914c62Sniklas 245df930be7Sderaadt /* 246aed035abSart * Turn off interrupts (not mchecks) and floating point. 247df930be7Sderaadt * Make sure the instruction and data streams are consistent. 248df930be7Sderaadt */ 249aed035abSart (void)alpha_pal_swpipl(ALPHA_PSL_IPL_HIGH); 25050ce9ee0Sniklas alpha_pal_wrfen(0); 25150ce9ee0Sniklas ALPHA_TBIA(); 25250ce9ee0Sniklas alpha_pal_imb(); 253df930be7Sderaadt 254aed035abSart cpu_id = cpu_number(); 255aed035abSart 256aed035abSart #if defined(MULTIPROCESSOR) 257df930be7Sderaadt /* 258aed035abSart * Set our SysValue to the address of our cpu_info structure. 259aed035abSart * Secondary processors do this in their spinup trampoline. 260df930be7Sderaadt */ 261aed035abSart alpha_pal_wrval((u_long)&cpu_info[cpu_id]); 262aed035abSart #endif 263aed035abSart 264aed035abSart ci = curcpu(); 265aed035abSart ci->ci_cpuid = cpu_id; 266aed035abSart 267aed035abSart /* 268aed035abSart * Get critical system information (if possible, from the 269aed035abSart * information provided by the boot program). 270aed035abSart */ 271aed035abSart bootinfo_msg = NULL; 272aed035abSart if (bim == BOOTINFO_MAGIC) { 273aed035abSart if (biv == 0) { /* backward compat */ 274aed035abSart biv = *(u_long *)bip; 275aed035abSart bip += 8; 276aed035abSart } 277aed035abSart switch (biv) { 278aed035abSart case 1: { 279aed035abSart struct bootinfo_v1 *v1p = (struct bootinfo_v1 *)bip; 280aed035abSart 281aed035abSart bootinfo.ssym = v1p->ssym; 282aed035abSart bootinfo.esym = v1p->esym; 283aed035abSart /* hwrpb may not be provided by boot block in v1 */ 284aed035abSart if (v1p->hwrpb != NULL) { 285aed035abSart bootinfo.hwrpb_phys = 286aed035abSart ((struct rpb *)v1p->hwrpb)->rpb_phys; 287aed035abSart bootinfo.hwrpb_size = v1p->hwrpbsize; 288aed035abSart } else { 289aed035abSart bootinfo.hwrpb_phys = 290aed035abSart ((struct rpb *)HWRPB_ADDR)->rpb_phys; 291aed035abSart bootinfo.hwrpb_size = 292aed035abSart ((struct rpb *)HWRPB_ADDR)->rpb_size; 293aed035abSart } 294aed035abSart bcopy(v1p->boot_flags, bootinfo.boot_flags, 295aed035abSart min(sizeof v1p->boot_flags, 296aed035abSart sizeof bootinfo.boot_flags)); 297aed035abSart bcopy(v1p->booted_kernel, bootinfo.booted_kernel, 298aed035abSart min(sizeof v1p->booted_kernel, 299aed035abSart sizeof bootinfo.booted_kernel)); 300aed035abSart /* booted dev not provided in bootinfo */ 301aed035abSart init_prom_interface((struct rpb *) 302aed035abSart ALPHA_PHYS_TO_K0SEG(bootinfo.hwrpb_phys)); 303aed035abSart prom_getenv(PROM_E_BOOTED_DEV, bootinfo.booted_dev, 304aed035abSart sizeof bootinfo.booted_dev); 305aed035abSart break; 306aed035abSart } 307aed035abSart default: 308aed035abSart bootinfo_msg = "unknown bootinfo version"; 309aed035abSart goto nobootinfo; 310aed035abSart } 311aed035abSart } else { 312aed035abSart bootinfo_msg = "boot program did not pass bootinfo"; 313aed035abSart nobootinfo: 314aed035abSart bootinfo.ssym = (u_long)_end; 315aed035abSart bootinfo.esym = (u_long)_end; 316aed035abSart bootinfo.hwrpb_phys = ((struct rpb *)HWRPB_ADDR)->rpb_phys; 317aed035abSart bootinfo.hwrpb_size = ((struct rpb *)HWRPB_ADDR)->rpb_size; 318aed035abSart init_prom_interface((struct rpb *)HWRPB_ADDR); 319aed035abSart prom_getenv(PROM_E_BOOTED_OSFLAGS, bootinfo.boot_flags, 320aed035abSart sizeof bootinfo.boot_flags); 321aed035abSart prom_getenv(PROM_E_BOOTED_FILE, bootinfo.booted_kernel, 322aed035abSart sizeof bootinfo.booted_kernel); 323aed035abSart prom_getenv(PROM_E_BOOTED_DEV, bootinfo.booted_dev, 324aed035abSart sizeof bootinfo.booted_dev); 325aed035abSart } 326aed035abSart 327aed035abSart esym = (caddr_t)bootinfo.esym; 328aed035abSart /* 329aed035abSart * Initialize the kernel's mapping of the RPB. It's needed for 330aed035abSart * lots of things. 331aed035abSart */ 332aed035abSart hwrpb = (struct rpb *)ALPHA_PHYS_TO_K0SEG(bootinfo.hwrpb_phys); 333aed035abSart 334aed035abSart #if defined(DEC_3000_300) || defined(DEC_3000_500) 335aed035abSart if (hwrpb->rpb_type == ST_DEC_3000_300 || 336aed035abSart hwrpb->rpb_type == ST_DEC_3000_500) { 337aed035abSart prom_getenv(PROM_E_SCSIID, dec_3000_scsiid, 338aed035abSart sizeof(dec_3000_scsiid)); 339aed035abSart prom_getenv(PROM_E_SCSIFAST, dec_3000_scsifast, 340aed035abSart sizeof(dec_3000_scsifast)); 341aed035abSart } 342aed035abSart #endif 343df930be7Sderaadt 344df930be7Sderaadt /* 345df930be7Sderaadt * Remember how many cycles there are per microsecond, 346df930be7Sderaadt * so that we can use delay(). Round up, for safety. 347df930be7Sderaadt */ 348df930be7Sderaadt cycles_per_usec = (hwrpb->rpb_cc_freq + 999999) / 1000000; 349df930be7Sderaadt 350df930be7Sderaadt /* 3519e71c994Saaron * Initialize the (temporary) bootstrap console interface, so 352aed035abSart * we can use printf until the VM system starts being setup. 353aed035abSart * The real console is initialized before then. 354df930be7Sderaadt */ 355aed035abSart init_bootstrap_console(); 356aed035abSart 357aed035abSart /* OUTPUT NOW ALLOWED */ 358aed035abSart 359aed035abSart /* delayed from above */ 360aed035abSart if (bootinfo_msg) 361aed035abSart printf("WARNING: %s (0x%lx, 0x%lx, 0x%lx)\n", 362aed035abSart bootinfo_msg, bim, bip, biv); 363aed035abSart 364aed035abSart /* Initialize the trap vectors on the primary processor. */ 365aed035abSart trap_init(); 366df930be7Sderaadt 367df930be7Sderaadt /* 368aed035abSart * Find out what hardware we're on, and do basic initialization. 369df930be7Sderaadt */ 370aed035abSart cputype = hwrpb->rpb_type; 371aed035abSart if (cputype < 0) { 372aed035abSart /* 373aed035abSart * At least some white-box systems have SRM which 374aed035abSart * reports a systype that's the negative of their 375aed035abSart * blue-box counterpart. 376aed035abSart */ 377aed035abSart cputype = -cputype; 378aed035abSart } 379aed035abSart c = platform_lookup(cputype); 380aed035abSart if (c == NULL) { 381aed035abSart platform_not_supported(); 382aed035abSart /* NOTREACHED */ 383aed035abSart } 384aed035abSart (*c->init)(); 385094fa01fSderaadt strlcpy(cpu_model, platform.model, sizeof cpu_model); 38650ce9ee0Sniklas 38750ce9ee0Sniklas /* 3889e71c994Saaron * Initialize the real console, so that the bootstrap console is 389aed035abSart * no longer necessary. 39050ce9ee0Sniklas */ 391aed035abSart (*platform.cons_init)(); 392aed035abSart 393a55851f4Sderaadt #if 0 394aed035abSart /* Paranoid sanity checking */ 395aed035abSart 396aed035abSart assert(hwrpb->rpb_primary_cpu_id == alpha_pal_whami()); 397aed035abSart 398aed035abSart /* 399aed035abSart * On single-CPU systypes, the primary should always be CPU 0, 400aed035abSart * except on Alpha 8200 systems where the CPU id is related 401aed035abSart * to the VID, which is related to the Turbo Laser node id. 402aed035abSart */ 403aed035abSart if (cputype != ST_DEC_21000) 404aed035abSart assert(hwrpb->rpb_primary_cpu_id == 0); 405aed035abSart #endif 406aed035abSart 407aed035abSart /* NO MORE FIRMWARE ACCESS ALLOWED */ 408aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 409aed035abSart /* 410aed035abSart * XXX (unless _PMAP_MAY_USE_PROM_CONSOLE is defined and 411aed035abSart * XXX pmap_uses_prom_console() evaluates to non-zero.) 412aed035abSart */ 413aed035abSart #endif 414aed035abSart 415aed035abSart /* 416aed035abSart * find out this system's page size 417aed035abSart */ 41873b9fe7cSart if ((uvmexp.pagesize = hwrpb->rpb_page_size) != 8192) 41973b9fe7cSart panic("page size %d != 8192?!", uvmexp.pagesize); 420aed035abSart 421aed035abSart uvm_setpagesize(); 422aed035abSart 423aed035abSart /* 424aed035abSart * Find the beginning and end of the kernel (and leave a 425aed035abSart * bit of space before the beginning for the bootstrap 426aed035abSart * stack). 427aed035abSart */ 428aed035abSart kernstart = trunc_page((vaddr_t)kernel_text) - 2 * PAGE_SIZE; 429aed035abSart kernend = (vaddr_t)round_page((vaddr_t)bootinfo.esym); 430aed035abSart 431aed035abSart kernstartpfn = atop(ALPHA_K0SEG_TO_PHYS(kernstart)); 432aed035abSart kernendpfn = atop(ALPHA_K0SEG_TO_PHYS(kernend)); 433df930be7Sderaadt 434df930be7Sderaadt /* 435df930be7Sderaadt * Find out how much memory is available, by looking at 436df930be7Sderaadt * the memory cluster descriptors. This also tries to do 437df930be7Sderaadt * its best to detect things things that have never been seen 438df930be7Sderaadt * before... 439df930be7Sderaadt */ 440df930be7Sderaadt mddtp = (struct mddt *)(((caddr_t)hwrpb) + hwrpb->rpb_memdat_off); 441df930be7Sderaadt 442aed035abSart /* MDDT SANITY CHECKING */ 443df930be7Sderaadt mddtweird = 0; 444aed035abSart if (mddtp->mddt_cluster_cnt < 2) { 445df930be7Sderaadt mddtweird = 1; 446aed035abSart printf("WARNING: weird number of mem clusters: %lu\n", 447aed035abSart mddtp->mddt_cluster_cnt); 448df930be7Sderaadt } 449df930be7Sderaadt 450aed035abSart #if 0 451aed035abSart printf("Memory cluster count: %d\n", mddtp->mddt_cluster_cnt); 452aed035abSart #endif 453df930be7Sderaadt 454aed035abSart for (i = 0; i < mddtp->mddt_cluster_cnt; i++) { 455aed035abSart memc = &mddtp->mddt_clusters[i]; 456aed035abSart #if 0 457aed035abSart printf("MEMC %d: pfn 0x%lx cnt 0x%lx usage 0x%lx\n", i, 458aed035abSart memc->mddt_pfn, memc->mddt_pg_cnt, memc->mddt_usage); 459aed035abSart #endif 460aed035abSart totalphysmem += memc->mddt_pg_cnt; 461aed035abSart if (mem_cluster_cnt < VM_PHYSSEG_MAX) { /* XXX */ 462aed035abSart mem_clusters[mem_cluster_cnt].start = 463aed035abSart ptoa(memc->mddt_pfn); 464aed035abSart mem_clusters[mem_cluster_cnt].size = 465aed035abSart ptoa(memc->mddt_pg_cnt); 466aed035abSart if (memc->mddt_usage & MDDT_mbz || 467aed035abSart memc->mddt_usage & MDDT_NONVOLATILE || /* XXX */ 468aed035abSart memc->mddt_usage & MDDT_PALCODE) 469aed035abSart mem_clusters[mem_cluster_cnt].size |= 470aed035abSart VM_PROT_READ; 471aed035abSart else 472aed035abSart mem_clusters[mem_cluster_cnt].size |= 473aed035abSart VM_PROT_READ | VM_PROT_WRITE | VM_PROT_EXECUTE; 474aed035abSart mem_cluster_cnt++; 475aed035abSart } 476aed035abSart 477aed035abSart if (memc->mddt_usage & MDDT_mbz) { 478aed035abSart mddtweird = 1; 479aed035abSart printf("WARNING: mem cluster %d has weird " 480aed035abSart "usage 0x%lx\n", i, memc->mddt_usage); 481aed035abSart unknownmem += memc->mddt_pg_cnt; 482aed035abSart continue; 483aed035abSart } 484aed035abSart if (memc->mddt_usage & MDDT_NONVOLATILE) { 485aed035abSart /* XXX should handle these... */ 486aed035abSart printf("WARNING: skipping non-volatile mem " 487aed035abSart "cluster %d\n", i); 488aed035abSart unusedmem += memc->mddt_pg_cnt; 489aed035abSart continue; 490aed035abSart } 491aed035abSart if (memc->mddt_usage & MDDT_PALCODE) { 492aed035abSart resvmem += memc->mddt_pg_cnt; 493aed035abSart continue; 494aed035abSart } 495aed035abSart 496aed035abSart /* 497aed035abSart * We have a memory cluster available for system 498aed035abSart * software use. We must determine if this cluster 499aed035abSart * holds the kernel. 500aed035abSart */ 501aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 502aed035abSart /* 503aed035abSart * XXX If the kernel uses the PROM console, we only use the 504aed035abSart * XXX memory after the kernel in the first system segment, 505aed035abSart * XXX to avoid clobbering prom mapping, data, etc. 506aed035abSart */ 507aed035abSart if (!pmap_uses_prom_console() || physmem == 0) { 508aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 509aed035abSart physmem += memc->mddt_pg_cnt; 510aed035abSart pfn0 = memc->mddt_pfn; 511aed035abSart pfn1 = memc->mddt_pfn + memc->mddt_pg_cnt; 512aed035abSart if (pfn0 <= kernstartpfn && kernendpfn <= pfn1) { 513aed035abSart /* 514aed035abSart * Must compute the location of the kernel 515aed035abSart * within the segment. 516aed035abSart */ 517aed035abSart #if 0 518aed035abSart printf("Cluster %d contains kernel\n", i); 519aed035abSart #endif 520aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 521aed035abSart if (!pmap_uses_prom_console()) { 522aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 523aed035abSart if (pfn0 < kernstartpfn) { 524aed035abSart /* 525aed035abSart * There is a chunk before the kernel. 526aed035abSart */ 527aed035abSart #if 0 528aed035abSart printf("Loading chunk before kernel: " 529aed035abSart "0x%lx / 0x%lx\n", pfn0, kernstartpfn); 530aed035abSart #endif 531aed035abSart uvm_page_physload(pfn0, kernstartpfn, 532aed035abSart pfn0, kernstartpfn, VM_FREELIST_DEFAULT); 533aed035abSart } 534aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 535aed035abSart } 536aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 537aed035abSart if (kernendpfn < pfn1) { 538aed035abSart /* 539aed035abSart * There is a chunk after the kernel. 540aed035abSart */ 541aed035abSart #if 0 542aed035abSart printf("Loading chunk after kernel: " 543aed035abSart "0x%lx / 0x%lx\n", kernendpfn, pfn1); 544aed035abSart #endif 545aed035abSart uvm_page_physload(kernendpfn, pfn1, 546aed035abSart kernendpfn, pfn1, VM_FREELIST_DEFAULT); 547aed035abSart } 548aed035abSart } else { 549aed035abSart /* 550aed035abSart * Just load this cluster as one chunk. 551aed035abSart */ 552aed035abSart #if 0 553aed035abSart printf("Loading cluster %d: 0x%lx / 0x%lx\n", i, 554aed035abSart pfn0, pfn1); 555aed035abSart #endif 556aed035abSart uvm_page_physload(pfn0, pfn1, pfn0, pfn1, 557aed035abSart VM_FREELIST_DEFAULT); 558aed035abSart } 559aed035abSart #ifdef _PMAP_MAY_USE_PROM_CONSOLE 560aed035abSart } 561aed035abSart #endif /* _PMAP_MAY_USE_PROM_CONSOLE */ 562aed035abSart } 563aed035abSart 564*a37778bcSderaadt #ifdef DEBUG 565aed035abSart /* 566aed035abSart * Dump out the MDDT if it looks odd... 567aed035abSart */ 568df930be7Sderaadt if (mddtweird) { 569df930be7Sderaadt printf("\n"); 570df930be7Sderaadt printf("complete memory cluster information:\n"); 571df930be7Sderaadt for (i = 0; i < mddtp->mddt_cluster_cnt; i++) { 572df930be7Sderaadt printf("mddt %d:\n", i); 573df930be7Sderaadt printf("\tpfn %lx\n", 574df930be7Sderaadt mddtp->mddt_clusters[i].mddt_pfn); 575df930be7Sderaadt printf("\tcnt %lx\n", 576df930be7Sderaadt mddtp->mddt_clusters[i].mddt_pg_cnt); 577df930be7Sderaadt printf("\ttest %lx\n", 578df930be7Sderaadt mddtp->mddt_clusters[i].mddt_pg_test); 579df930be7Sderaadt printf("\tbva %lx\n", 580df930be7Sderaadt mddtp->mddt_clusters[i].mddt_v_bitaddr); 581df930be7Sderaadt printf("\tbpa %lx\n", 582df930be7Sderaadt mddtp->mddt_clusters[i].mddt_p_bitaddr); 583df930be7Sderaadt printf("\tbcksum %lx\n", 584df930be7Sderaadt mddtp->mddt_clusters[i].mddt_bit_cksum); 585df930be7Sderaadt printf("\tusage %lx\n", 586df930be7Sderaadt mddtp->mddt_clusters[i].mddt_usage); 587df930be7Sderaadt } 588df930be7Sderaadt printf("\n"); 589df930be7Sderaadt } 590*a37778bcSderaadt #endif 591df930be7Sderaadt 592df930be7Sderaadt if (totalphysmem == 0) 593df930be7Sderaadt panic("can't happen: system seems to have no memory!"); 594df930be7Sderaadt maxmem = physmem; 595df930be7Sderaadt #if 0 596df930be7Sderaadt printf("totalphysmem = %d\n", totalphysmem); 597df930be7Sderaadt printf("physmem = %d\n", physmem); 598df930be7Sderaadt printf("resvmem = %d\n", resvmem); 599df930be7Sderaadt printf("unusedmem = %d\n", unusedmem); 600df930be7Sderaadt printf("unknownmem = %d\n", unknownmem); 601df930be7Sderaadt #endif 602df930be7Sderaadt 603df930be7Sderaadt /* 604aed035abSart * Initialize error message buffer (at end of core). 605df930be7Sderaadt */ 606aed035abSart { 607aed035abSart vsize_t sz = (vsize_t)round_page(MSGBUFSIZE); 608aed035abSart vsize_t reqsz = sz; 609df930be7Sderaadt 610aed035abSart vps = &vm_physmem[vm_nphysseg - 1]; 611e1da84e1Salex 612aed035abSart /* shrink so that it'll fit in the last segment */ 613aed035abSart if ((vps->avail_end - vps->avail_start) < atop(sz)) 614aed035abSart sz = ptoa(vps->avail_end - vps->avail_start); 615aed035abSart 616aed035abSart vps->end -= atop(sz); 617aed035abSart vps->avail_end -= atop(sz); 618aed035abSart initmsgbuf((caddr_t) ALPHA_PHYS_TO_K0SEG(ptoa(vps->end)), sz); 619aed035abSart 620aed035abSart /* Remove the last segment if it now has no pages. */ 621aed035abSart if (vps->start == vps->end) 622aed035abSart vm_nphysseg--; 623aed035abSart 624aed035abSart /* warn if the message buffer had to be shrunk */ 625aed035abSart if (sz != reqsz) 626aed035abSart printf("WARNING: %ld bytes not available for msgbuf " 627aed035abSart "in last cluster (%ld used)\n", reqsz, sz); 628aed035abSart 629aed035abSart } 630aed035abSart 631df930be7Sderaadt /* 632df930be7Sderaadt * Init mapping for u page(s) for proc 0 633df930be7Sderaadt */ 634aed035abSart proc0.p_addr = proc0paddr = 635aed035abSart (struct user *)pmap_steal_memory(UPAGES * PAGE_SIZE, NULL, NULL); 636df930be7Sderaadt 637df930be7Sderaadt /* 638aed035abSart * Allocate space for system data structures. These data structures 639aed035abSart * are allocated here instead of cpu_startup() because physical 640aed035abSart * memory is directly addressable. We don't have to map these into 641aed035abSart * virtual address space. 642df930be7Sderaadt */ 643aed035abSart size = (vsize_t)allocsys(NULL); 644aed035abSart v = (caddr_t)pmap_steal_memory(size, NULL, NULL); 645aed035abSart if ((allocsys(v) - v) != size) 646aed035abSart panic("alpha_init: table size inconsistency"); 647df930be7Sderaadt 648df930be7Sderaadt /* 649df930be7Sderaadt * Clear allocated memory. 650df930be7Sderaadt */ 651aed035abSart bzero(v, size); 652df930be7Sderaadt 653df930be7Sderaadt /* 654df930be7Sderaadt * Initialize the virtual memory system, and set the 655df930be7Sderaadt * page table base register in proc 0's PCB. 656df930be7Sderaadt */ 657aed035abSart pmap_bootstrap(ALPHA_PHYS_TO_K0SEG(ptb << PGSHIFT), 658aed035abSart hwrpb->rpb_max_asn, hwrpb->rpb_pcs_cnt); 659df930be7Sderaadt 660df930be7Sderaadt /* 661df930be7Sderaadt * Initialize the rest of proc 0's PCB, and cache its physical 662df930be7Sderaadt * address. 663df930be7Sderaadt */ 664df930be7Sderaadt proc0.p_md.md_pcbpaddr = 665aed035abSart (struct pcb *)ALPHA_K0SEG_TO_PHYS((vaddr_t)&proc0paddr->u_pcb); 666df930be7Sderaadt 667df930be7Sderaadt /* 668df930be7Sderaadt * Set the kernel sp, reserving space for an (empty) trapframe, 669df930be7Sderaadt * and make proc0's trapframe pointer point to it for sanity. 670df930be7Sderaadt */ 67150ce9ee0Sniklas proc0paddr->u_pcb.pcb_hw.apcb_ksp = 672df930be7Sderaadt (u_int64_t)proc0paddr + USPACE - sizeof(struct trapframe); 67374652a67Sniklas proc0.p_md.md_tf = 67474652a67Sniklas (struct trapframe *)proc0paddr->u_pcb.pcb_hw.apcb_ksp; 67550ce9ee0Sniklas 676aed035abSart /* 677aed035abSart * Initialize the primary CPU's idle PCB to proc0's. In a 678aed035abSart * MULTIPROCESSOR configuration, each CPU will later get 679aed035abSart * its own idle PCB when autoconfiguration runs. 680aed035abSart */ 681aed035abSart ci->ci_idle_pcb = &proc0paddr->u_pcb; 682aed035abSart ci->ci_idle_pcb_paddr = (u_long)proc0.p_md.md_pcbpaddr; 683df930be7Sderaadt 684df930be7Sderaadt /* 685df930be7Sderaadt * Look at arguments passed to us and compute boothowto. 686df930be7Sderaadt */ 687417eba8cSderaadt 688417eba8cSderaadt boothowto = RB_SINGLE; 689df930be7Sderaadt #ifdef KADB 690df930be7Sderaadt boothowto |= RB_KDB; 691df930be7Sderaadt #endif 692aed035abSart for (p = bootinfo.boot_flags; p && *p != '\0'; p++) { 693417eba8cSderaadt /* 694417eba8cSderaadt * Note that we'd really like to differentiate case here, 695417eba8cSderaadt * but the Alpha AXP Architecture Reference Manual 696417eba8cSderaadt * says that we shouldn't. 697417eba8cSderaadt */ 698df930be7Sderaadt switch (*p) { 699df930be7Sderaadt case 'a': /* autoboot */ 700417eba8cSderaadt case 'A': 701df930be7Sderaadt boothowto &= ~RB_SINGLE; 702df930be7Sderaadt break; 703df930be7Sderaadt 70412f8bbedSniklas case 'b': /* Enter DDB as soon as the console is initialised */ 70512f8bbedSniklas case 'B': 70612f8bbedSniklas boothowto |= RB_KDB; 70712f8bbedSniklas break; 70812f8bbedSniklas 70950ce9ee0Sniklas case 'c': /* enter user kernel configuration */ 71050ce9ee0Sniklas case 'C': 71150ce9ee0Sniklas boothowto |= RB_CONFIG; 71250ce9ee0Sniklas break; 71350ce9ee0Sniklas 71450ce9ee0Sniklas #ifdef DEBUG 71550ce9ee0Sniklas case 'd': /* crash dump immediately after autoconfig */ 71650ce9ee0Sniklas case 'D': 71750ce9ee0Sniklas boothowto |= RB_DUMP; 71850ce9ee0Sniklas break; 71950ce9ee0Sniklas #endif 72050ce9ee0Sniklas 72150ce9ee0Sniklas case 'h': /* always halt, never reboot */ 72250ce9ee0Sniklas case 'H': 72350ce9ee0Sniklas boothowto |= RB_HALT; 724df930be7Sderaadt break; 725df930be7Sderaadt 726417eba8cSderaadt #if 0 727417eba8cSderaadt case 'm': /* mini root present in memory */ 728417eba8cSderaadt case 'M': 729417eba8cSderaadt boothowto |= RB_MINIROOT; 730417eba8cSderaadt break; 731417eba8cSderaadt #endif 73250ce9ee0Sniklas 73350ce9ee0Sniklas case 'n': /* askname */ 73450ce9ee0Sniklas case 'N': 73550ce9ee0Sniklas boothowto |= RB_ASKNAME; 73650ce9ee0Sniklas break; 737aed035abSart 738aed035abSart case 's': /* single-user (default, supported for sanity) */ 739aed035abSart case 'S': 740aed035abSart boothowto |= RB_SINGLE; 741aed035abSart break; 742aed035abSart 743aed035abSart case '-': 744aed035abSart /* 745aed035abSart * Just ignore this. It's not required, but it's 746aed035abSart * common for it to be passed regardless. 747aed035abSart */ 748aed035abSart break; 749aed035abSart 750aed035abSart default: 751aed035abSart printf("Unrecognized boot flag '%c'.\n", *p); 752aed035abSart break; 753df930be7Sderaadt } 754df930be7Sderaadt } 755df930be7Sderaadt 756aed035abSart 757df930be7Sderaadt /* 758df930be7Sderaadt * Figure out the number of cpus in the box, from RPB fields. 759df930be7Sderaadt * Really. We mean it. 760df930be7Sderaadt */ 761e2444cc0Smarc for (ncpus = 0, i = 0; i < hwrpb->rpb_pcs_cnt; i++) { 762df930be7Sderaadt struct pcs *pcsp; 763df930be7Sderaadt 764aed035abSart pcsp = LOCATE_PCS(hwrpb, i); 765df930be7Sderaadt if ((pcsp->pcs_flags & PCS_PP) != 0) 766df930be7Sderaadt ncpus++; 767df930be7Sderaadt } 768aed035abSart 769aed035abSart /* 770aed035abSart * Initialize debuggers, and break into them if appropriate. 771aed035abSart */ 772aed035abSart #ifdef DDB 773aed035abSart ddb_init(); 774aed035abSart 775aed035abSart if (boothowto & RB_KDB) 776aed035abSart Debugger(); 777aed035abSart #endif 778aed035abSart #ifdef KGDB 779aed035abSart if (boothowto & RB_KDB) 780aed035abSart kgdb_connect(0); 781aed035abSart #endif 782aed035abSart /* 783aed035abSart * Figure out our clock frequency, from RPB fields. 784aed035abSart */ 785aed035abSart hz = hwrpb->rpb_intr_freq >> 12; 786aed035abSart if (!(60 <= hz && hz <= 10240)) { 787aed035abSart hz = 1024; 788aed035abSart #ifdef DIAGNOSTIC 789aed035abSart printf("WARNING: unbelievable rpb_intr_freq: %ld (%d hz)\n", 790aed035abSart hwrpb->rpb_intr_freq, hz); 791aed035abSart #endif 792aed035abSart } 793aed035abSart } 794aed035abSart 795aed035abSart caddr_t 796aed035abSart allocsys(v) 797aed035abSart caddr_t v; 798aed035abSart { 799aed035abSart /* 800aed035abSart * Allocate space for system data structures. 801aed035abSart * The first available kernel virtual address is in "v". 802aed035abSart * As pages of kernel virtual memory are allocated, "v" is incremented. 803aed035abSart * 804aed035abSart * These data structures are allocated here instead of cpu_startup() 805aed035abSart * because physical memory is directly addressable. We don't have 806aed035abSart * to map these into virtual address space. 807aed035abSart */ 808aed035abSart #define valloc(name, type, num) \ 809aed035abSart (name) = (type *)v; v = (caddr_t)ALIGN((name)+(num)) 810aed035abSart 811aed035abSart #ifdef SYSVMSG 812aed035abSart valloc(msgpool, char, msginfo.msgmax); 813aed035abSart valloc(msgmaps, struct msgmap, msginfo.msgseg); 814aed035abSart valloc(msghdrs, struct msg, msginfo.msgtql); 815aed035abSart valloc(msqids, struct msqid_ds, msginfo.msgmni); 816aed035abSart #endif 817aed035abSart 818aed035abSart /* 819aed035abSart * Determine how many buffers to allocate. 820aed035abSart * We allocate 10% of memory for buffer space. Insure a 821aed035abSart * minimum of 16 buffers. 822aed035abSart */ 823aed035abSart if (bufpages == 0) 82460535ec9Smaja bufpages = (physmem / (100/bufcachepercent)); 825aed035abSart if (nbuf == 0) { 826aed035abSart nbuf = bufpages; 827aed035abSart if (nbuf < 16) 828aed035abSart nbuf = 16; 829aed035abSart } 830aed035abSart valloc(buf, struct buf, nbuf); 831aed035abSart 832aed035abSart #undef valloc 833aed035abSart 834aed035abSart return v; 835df930be7Sderaadt } 836df930be7Sderaadt 837417eba8cSderaadt void 838df930be7Sderaadt consinit() 839df930be7Sderaadt { 840aed035abSart 841aed035abSart /* 842aed035abSart * Everything related to console initialization is done 843aed035abSart * in alpha_init(). 844aed035abSart */ 845aed035abSart #if defined(DIAGNOSTIC) && defined(_PMAP_MAY_USE_PROM_CONSOLE) 846aed035abSart printf("consinit: %susing prom console\n", 847aed035abSart pmap_uses_prom_console() ? "" : "not "); 84812f8bbedSniklas #endif 849df930be7Sderaadt } 850df930be7Sderaadt 851417eba8cSderaadt void 852df930be7Sderaadt cpu_startup() 853df930be7Sderaadt { 854df930be7Sderaadt register unsigned i; 855df930be7Sderaadt int base, residual; 856aed035abSart vaddr_t minaddr, maxaddr; 857aed035abSart vsize_t size; 85850ce9ee0Sniklas #if defined(DEBUG) 859df930be7Sderaadt extern int pmapdebug; 860df930be7Sderaadt int opmapdebug = pmapdebug; 861df930be7Sderaadt 862df930be7Sderaadt pmapdebug = 0; 863df930be7Sderaadt #endif 864df930be7Sderaadt 865df930be7Sderaadt /* 866df930be7Sderaadt * Good {morning,afternoon,evening,night}. 867df930be7Sderaadt */ 868df930be7Sderaadt printf(version); 869df930be7Sderaadt identifycpu(); 8703f4ce3b7Smiod printf("total memory = %ld (%ldK)\n", (long)ptoa(totalphysmem), 8713f4ce3b7Smiod (long)ptoa(totalphysmem) / 1024); 8723f4ce3b7Smiod printf("(%ld reserved for PROM, ", (long)ptoa(resvmem)); 8733f4ce3b7Smiod printf("%ld used by OpenBSD)\n", (long)ptoa(physmem)); 874aed035abSart if (unusedmem) { 8753f4ce3b7Smiod printf("WARNING: unused memory = %ld (%ldK)\n", 8763f4ce3b7Smiod (long)ptoa(unusedmem), (long)ptoa(unusedmem) / 1024); 877aed035abSart } 878aed035abSart if (unknownmem) { 8793f4ce3b7Smiod printf("WARNING: %ld (%ldK) of memory with unknown purpose\n", 8803f4ce3b7Smiod (long)ptoa(unknownmem), (long)ptoa(unknownmem) / 1024); 881aed035abSart } 882df930be7Sderaadt 883df930be7Sderaadt /* 884df930be7Sderaadt * Allocate virtual address space for file I/O buffers. 885df930be7Sderaadt * Note they are different than the array of headers, 'buf', 886df930be7Sderaadt * and usually occupy more virtual memory than physical. 887df930be7Sderaadt */ 888df930be7Sderaadt size = MAXBSIZE * nbuf; 889aed035abSart if (uvm_map(kernel_map, (vaddr_t *) &buffers, round_page(size), 890198a4b3fSart NULL, UVM_UNKNOWN_OFFSET, 0, 891aed035abSart UVM_MAPFLAG(UVM_PROT_NONE, UVM_PROT_NONE, UVM_INH_NONE, 892738a5b4dSart UVM_ADV_NORMAL, 0))) 893aed035abSart panic("startup: cannot allocate VM for buffers"); 894df930be7Sderaadt base = bufpages / nbuf; 895df930be7Sderaadt residual = bufpages % nbuf; 896df930be7Sderaadt for (i = 0; i < nbuf; i++) { 897aed035abSart vsize_t curbufsize; 898aed035abSart vaddr_t curbuf; 899aed035abSart struct vm_page *pg; 900df930be7Sderaadt 901df930be7Sderaadt /* 902aed035abSart * Each buffer has MAXBSIZE bytes of VM space allocated. Of 903aed035abSart * that MAXBSIZE space, we allocate and map (base+1) pages 904aed035abSart * for the first "residual" buffers, and then we allocate 905aed035abSart * "base" pages for the rest. 906df930be7Sderaadt */ 907aed035abSart curbuf = (vaddr_t) buffers + (i * MAXBSIZE); 908aed035abSart curbufsize = NBPG * ((i < residual) ? (base+1) : base); 909aed035abSart 910aed035abSart while (curbufsize) { 911aed035abSart pg = uvm_pagealloc(NULL, 0, NULL, 0); 912aed035abSart if (pg == NULL) 913aed035abSart panic("cpu_startup: not enough memory for " 914aed035abSart "buffer cache"); 915aed035abSart pmap_kenter_pa(curbuf, VM_PAGE_TO_PHYS(pg), 916aed035abSart VM_PROT_READ|VM_PROT_WRITE); 917aed035abSart curbuf += PAGE_SIZE; 918aed035abSart curbufsize -= PAGE_SIZE; 919aed035abSart } 9200e5798cfSart pmap_update(pmap_kernel()); 921df930be7Sderaadt } 922df930be7Sderaadt /* 923df930be7Sderaadt * Allocate a submap for exec arguments. This map effectively 924df930be7Sderaadt * limits the number of processes exec'ing at any time. 925df930be7Sderaadt */ 9267c10a71dSdrahn minaddr = vm_map_min(kernel_map); 927aed035abSart exec_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 928aed035abSart 16 * NCARGS, VM_MAP_PAGEABLE, FALSE, NULL); 929df930be7Sderaadt 930df930be7Sderaadt /* 931df930be7Sderaadt * Allocate a submap for physio 932df930be7Sderaadt */ 933aed035abSart phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 934aed035abSart VM_PHYS_SIZE, 0, FALSE, NULL); 935df930be7Sderaadt 93650ce9ee0Sniklas #if defined(DEBUG) 937df930be7Sderaadt pmapdebug = opmapdebug; 938df930be7Sderaadt #endif 9393f4ce3b7Smiod printf("avail memory = %ld (%ldK)\n", (long)ptoa(uvmexp.free), 9403f4ce3b7Smiod (long)ptoa(uvmexp.free) / 1024); 941aed035abSart #if 0 942aed035abSart { 943aed035abSart extern u_long pmap_pages_stolen; 944aed035abSart 945aed035abSart printf("stolen memory for VM structures = %d\n", pmap_pages_stolen * PAGE_SIZE); 946aed035abSart } 947aed035abSart #endif 9483f4ce3b7Smiod printf("using %ld buffers containing %ld bytes (%ldK) of memory\n", 9493f4ce3b7Smiod (long)nbuf, (long)bufpages * NBPG, (long)bufpages * (NBPG / 1024)); 950df930be7Sderaadt 951df930be7Sderaadt /* 952df930be7Sderaadt * Set up buffers, so they can be used to read disk labels. 953df930be7Sderaadt */ 954df930be7Sderaadt bufinit(); 955df930be7Sderaadt 956df930be7Sderaadt /* 957df930be7Sderaadt * Configure the system. 958df930be7Sderaadt */ 95941033391Sderaadt if (boothowto & RB_CONFIG) { 96041033391Sderaadt #ifdef BOOT_CONFIG 96141033391Sderaadt user_config(); 96241033391Sderaadt #else 96341033391Sderaadt printf("kernel does not support -c; continuing..\n"); 96441033391Sderaadt #endif 96541033391Sderaadt } 96650ce9ee0Sniklas 96750ce9ee0Sniklas /* 968aed035abSart * Set up the HWPCB so that it's safe to configure secondary 969aed035abSart * CPUs. 97050ce9ee0Sniklas */ 971aed035abSart hwrpb_primary_init(); 972aed035abSart } 973aed035abSart 974aed035abSart /* 975aed035abSart * Retrieve the platform name from the DSR. 976aed035abSart */ 977aed035abSart const char * 978aed035abSart alpha_dsr_sysname() 979aed035abSart { 980aed035abSart struct dsrdb *dsr; 981aed035abSart const char *sysname; 982aed035abSart 983aed035abSart /* 984aed035abSart * DSR does not exist on early HWRPB versions. 985aed035abSart */ 986aed035abSart if (hwrpb->rpb_version < HWRPB_DSRDB_MINVERS) 987aed035abSart return (NULL); 988aed035abSart 989aed035abSart dsr = (struct dsrdb *)(((caddr_t)hwrpb) + hwrpb->rpb_dsrdb_off); 990aed035abSart sysname = (const char *)((caddr_t)dsr + (dsr->dsr_sysname_off + 991aed035abSart sizeof(u_int64_t))); 992aed035abSart return (sysname); 993aed035abSart } 994aed035abSart 995aed035abSart /* 996aed035abSart * Lookup the system specified system variation in the provided table, 997aed035abSart * returning the model string on match. 998aed035abSart */ 999aed035abSart const char * 1000aed035abSart alpha_variation_name(variation, avtp) 1001aed035abSart u_int64_t variation; 1002aed035abSart const struct alpha_variation_table *avtp; 1003aed035abSart { 1004aed035abSart int i; 1005aed035abSart 1006aed035abSart for (i = 0; avtp[i].avt_model != NULL; i++) 1007aed035abSart if (avtp[i].avt_variation == variation) 1008aed035abSart return (avtp[i].avt_model); 1009aed035abSart return (NULL); 1010aed035abSart } 1011aed035abSart 1012aed035abSart /* 1013aed035abSart * Generate a default platform name based for unknown system variations. 1014aed035abSart */ 1015aed035abSart const char * 1016aed035abSart alpha_unknown_sysname() 1017aed035abSart { 1018aed035abSart static char s[128]; /* safe size */ 1019aed035abSart 1020d5eb2d9aSderaadt snprintf(s, sizeof s, "%s family, unknown model variation 0x%lx", 1021aed035abSart platform.family, hwrpb->rpb_variation & SV_ST_MASK); 1022aed035abSart return ((const char *)s); 1023df930be7Sderaadt } 1024df930be7Sderaadt 102550ce9ee0Sniklas void 1026df930be7Sderaadt identifycpu() 1027df930be7Sderaadt { 1028aed035abSart char *s; 1029df930be7Sderaadt 1030df930be7Sderaadt /* 1031df930be7Sderaadt * print out CPU identification information. 1032df930be7Sderaadt */ 1033aed035abSart printf("%s", cpu_model); 1034aed035abSart for(s = cpu_model; *s; ++s) 1035aed035abSart if(strncasecmp(s, "MHz", 3) == 0) 1036aed035abSart goto skipMHz; 1037aed035abSart printf(", %ldMHz", hwrpb->rpb_cc_freq / 1000000); 1038aed035abSart skipMHz: 1039aed035abSart printf("\n"); 104050ce9ee0Sniklas printf("%ld byte page size, %d processor%s.\n", 1041df930be7Sderaadt hwrpb->rpb_page_size, ncpus, ncpus == 1 ? "" : "s"); 1042df930be7Sderaadt #if 0 1043df930be7Sderaadt /* this isn't defined for any systems that we run on? */ 1044df930be7Sderaadt printf("serial number 0x%lx 0x%lx\n", 1045df930be7Sderaadt ((long *)hwrpb->rpb_ssn)[0], ((long *)hwrpb->rpb_ssn)[1]); 1046df930be7Sderaadt 1047df930be7Sderaadt /* and these aren't particularly useful! */ 1048df930be7Sderaadt printf("variation: 0x%lx, revision 0x%lx\n", 1049df930be7Sderaadt hwrpb->rpb_variation, *(long *)hwrpb->rpb_revision); 1050df930be7Sderaadt #endif 1051df930be7Sderaadt } 1052df930be7Sderaadt 1053df930be7Sderaadt int waittime = -1; 1054df930be7Sderaadt struct pcb dumppcb; 1055df930be7Sderaadt 1056417eba8cSderaadt void 1057aed035abSart boot(howto) 1058df930be7Sderaadt int howto; 1059df930be7Sderaadt { 1060aed035abSart #if defined(MULTIPROCESSOR) 1061aed035abSart #if 0 /* XXX See below. */ 1062aed035abSart u_long cpu_id; 1063aed035abSart #endif 1064aed035abSart #endif 1065aed035abSart 1066aed035abSart #if defined(MULTIPROCESSOR) 1067aed035abSart /* We must be running on the primary CPU. */ 1068aed035abSart if (alpha_pal_whami() != hwrpb->rpb_primary_cpu_id) 1069aed035abSart panic("cpu_reboot: not on primary CPU!"); 1070aed035abSart #endif 1071aed035abSart 1072df930be7Sderaadt /* If system is cold, just halt. */ 1073df930be7Sderaadt if (cold) { 1074c9ad5066Stom /* (Unless the user explicitly asked for reboot.) */ 1075c9ad5066Stom if ((howto & RB_USERREQ) == 0) 1076df930be7Sderaadt howto |= RB_HALT; 1077df930be7Sderaadt goto haltsys; 1078df930be7Sderaadt } 1079df930be7Sderaadt 108050ce9ee0Sniklas /* If "always halt" was specified as a boot flag, obey. */ 108150ce9ee0Sniklas if ((boothowto & RB_HALT) != 0) 108250ce9ee0Sniklas howto |= RB_HALT; 108350ce9ee0Sniklas 1084df930be7Sderaadt boothowto = howto; 1085df930be7Sderaadt if ((howto & RB_NOSYNC) == 0 && waittime < 0) { 1086df930be7Sderaadt waittime = 0; 1087df930be7Sderaadt vfs_shutdown(); 1088df930be7Sderaadt /* 1089df930be7Sderaadt * If we've been adjusting the clock, the todr 1090aed035abSart * will be out of synch; adjust it now. 1091df930be7Sderaadt */ 1092df930be7Sderaadt resettodr(); 1093df930be7Sderaadt } 1094df930be7Sderaadt 1095df930be7Sderaadt /* Disable interrupts. */ 1096df930be7Sderaadt splhigh(); 1097df930be7Sderaadt 1098df930be7Sderaadt /* If rebooting and a dump is requested do it. */ 109950ce9ee0Sniklas if (howto & RB_DUMP) 1100df930be7Sderaadt dumpsys(); 1101df930be7Sderaadt 110234fbf6deSderaadt haltsys: 110334fbf6deSderaadt 1104df930be7Sderaadt /* run any shutdown hooks */ 1105df930be7Sderaadt doshutdownhooks(); 1106df930be7Sderaadt 1107aed035abSart #if defined(MULTIPROCESSOR) 1108aed035abSart #if 0 /* XXX doesn't work when called from here?! */ 1109aed035abSart /* Kill off any secondary CPUs. */ 1110aed035abSart for (cpu_id = 0; cpu_id < hwrpb->rpb_pcs_cnt; cpu_id++) { 1111aed035abSart if (cpu_id == hwrpb->rpb_primary_cpu_id || 1112aed035abSart cpu_info[cpu_id].ci_softc == NULL) 1113aed035abSart continue; 1114aed035abSart cpu_halt_secondary(cpu_id); 1115aed035abSart } 1116aed035abSart #endif 1117aed035abSart #endif 1118aed035abSart 1119df930be7Sderaadt #ifdef BOOTKEY 1120df930be7Sderaadt printf("hit any key to %s...\n", howto & RB_HALT ? "halt" : "reboot"); 1121aed035abSart cnpollc(1); /* for proper keyboard command handling */ 1122df930be7Sderaadt cngetc(); 1123aed035abSart cnpollc(0); 1124df930be7Sderaadt printf("\n"); 1125df930be7Sderaadt #endif 1126df930be7Sderaadt 1127aed035abSart /* Finally, powerdown/halt/reboot the system. */ 1128aed035abSart if ((howto & RB_POWERDOWN) == RB_POWERDOWN && 1129aed035abSart platform.powerdown != NULL) { 1130aed035abSart (*platform.powerdown)(); 1131aed035abSart printf("WARNING: powerdown failed!\n"); 1132aed035abSart } 1133df930be7Sderaadt printf("%s\n\n", howto & RB_HALT ? "halted." : "rebooting..."); 1134df930be7Sderaadt prom_halt(howto & RB_HALT); 1135df930be7Sderaadt /*NOTREACHED*/ 1136df930be7Sderaadt } 1137df930be7Sderaadt 1138df930be7Sderaadt /* 1139df930be7Sderaadt * These variables are needed by /sbin/savecore 1140df930be7Sderaadt */ 1141df930be7Sderaadt u_long dumpmag = 0x8fca0101; /* magic number */ 1142df930be7Sderaadt int dumpsize = 0; /* pages */ 1143df930be7Sderaadt long dumplo = 0; /* blocks */ 1144df930be7Sderaadt 1145df930be7Sderaadt /* 114650ce9ee0Sniklas * cpu_dumpsize: calculate size of machine-dependent kernel core dump headers. 114750ce9ee0Sniklas */ 114850ce9ee0Sniklas int 114950ce9ee0Sniklas cpu_dumpsize() 115050ce9ee0Sniklas { 115150ce9ee0Sniklas int size; 115250ce9ee0Sniklas 1153aed035abSart size = ALIGN(sizeof(kcore_seg_t)) + ALIGN(sizeof(cpu_kcore_hdr_t)) + 1154aed035abSart ALIGN(mem_cluster_cnt * sizeof(phys_ram_seg_t)); 115550ce9ee0Sniklas if (roundup(size, dbtob(1)) != dbtob(1)) 115650ce9ee0Sniklas return -1; 115750ce9ee0Sniklas 115850ce9ee0Sniklas return (1); 115950ce9ee0Sniklas } 116050ce9ee0Sniklas 116150ce9ee0Sniklas /* 1162aed035abSart * cpu_dump_mempagecnt: calculate size of RAM (in pages) to be dumped. 1163aed035abSart */ 1164aed035abSart u_long 1165aed035abSart cpu_dump_mempagecnt() 1166aed035abSart { 1167aed035abSart u_long i, n; 1168aed035abSart 1169aed035abSart n = 0; 1170aed035abSart for (i = 0; i < mem_cluster_cnt; i++) 1171aed035abSart n += atop(mem_clusters[i].size); 1172aed035abSart return (n); 1173aed035abSart } 1174aed035abSart 1175aed035abSart /* 117650ce9ee0Sniklas * cpu_dump: dump machine-dependent kernel core dump headers. 117750ce9ee0Sniklas */ 117850ce9ee0Sniklas int 117950ce9ee0Sniklas cpu_dump() 118050ce9ee0Sniklas { 1181c4071fd1Smillert int (*dump)(dev_t, daddr_t, caddr_t, size_t); 1182aed035abSart char buf[dbtob(1)]; 118350ce9ee0Sniklas kcore_seg_t *segp; 118450ce9ee0Sniklas cpu_kcore_hdr_t *cpuhdrp; 1185aed035abSart phys_ram_seg_t *memsegp; 1186aed035abSart int i; 118750ce9ee0Sniklas 118850ce9ee0Sniklas dump = bdevsw[major(dumpdev)].d_dump; 118950ce9ee0Sniklas 1190aed035abSart bzero(buf, sizeof buf); 119150ce9ee0Sniklas segp = (kcore_seg_t *)buf; 1192aed035abSart cpuhdrp = (cpu_kcore_hdr_t *)&buf[ALIGN(sizeof(*segp))]; 1193aed035abSart memsegp = (phys_ram_seg_t *)&buf[ALIGN(sizeof(*segp)) + 1194aed035abSart ALIGN(sizeof(*cpuhdrp))]; 119550ce9ee0Sniklas 119650ce9ee0Sniklas /* 119750ce9ee0Sniklas * Generate a segment header. 119850ce9ee0Sniklas */ 119950ce9ee0Sniklas CORE_SETMAGIC(*segp, KCORE_MAGIC, MID_MACHINE, CORE_CPU); 120050ce9ee0Sniklas segp->c_size = dbtob(1) - ALIGN(sizeof(*segp)); 120150ce9ee0Sniklas 120250ce9ee0Sniklas /* 1203aed035abSart * Add the machine-dependent header info. 120450ce9ee0Sniklas */ 1205aed035abSart cpuhdrp->lev1map_pa = ALPHA_K0SEG_TO_PHYS((vaddr_t)kernel_lev1map); 120650ce9ee0Sniklas cpuhdrp->page_size = PAGE_SIZE; 1207aed035abSart cpuhdrp->nmemsegs = mem_cluster_cnt; 1208aed035abSart 1209aed035abSart /* 1210aed035abSart * Fill in the memory segment descriptors. 1211aed035abSart */ 1212aed035abSart for (i = 0; i < mem_cluster_cnt; i++) { 1213aed035abSart memsegp[i].start = mem_clusters[i].start; 1214aed035abSart memsegp[i].size = mem_clusters[i].size & ~PAGE_MASK; 1215aed035abSart } 121650ce9ee0Sniklas 121750ce9ee0Sniklas return (dump(dumpdev, dumplo, (caddr_t)buf, dbtob(1))); 121850ce9ee0Sniklas } 121950ce9ee0Sniklas 122050ce9ee0Sniklas /* 1221aed035abSart * This is called by main to set dumplo and dumpsize. 1222aed035abSart * Dumps always skip the first NBPG of disk space 1223df930be7Sderaadt * in case there might be a disk label stored there. 1224df930be7Sderaadt * If there is extra space, put dump at the end to 1225df930be7Sderaadt * reduce the chance that swapping trashes it. 1226df930be7Sderaadt */ 1227df930be7Sderaadt void 1228df930be7Sderaadt dumpconf() 1229df930be7Sderaadt { 123050ce9ee0Sniklas int nblks, dumpblks; /* size of dump area */ 1231df930be7Sderaadt int maj; 1232df930be7Sderaadt 1233df930be7Sderaadt if (dumpdev == NODEV) 123450ce9ee0Sniklas goto bad; 1235df930be7Sderaadt maj = major(dumpdev); 1236df930be7Sderaadt if (maj < 0 || maj >= nblkdev) 1237df930be7Sderaadt panic("dumpconf: bad dumpdev=0x%x", dumpdev); 1238df930be7Sderaadt if (bdevsw[maj].d_psize == NULL) 123950ce9ee0Sniklas goto bad; 1240df930be7Sderaadt nblks = (*bdevsw[maj].d_psize)(dumpdev); 1241df930be7Sderaadt if (nblks <= ctod(1)) 124250ce9ee0Sniklas goto bad; 124350ce9ee0Sniklas 124450ce9ee0Sniklas dumpblks = cpu_dumpsize(); 124550ce9ee0Sniklas if (dumpblks < 0) 124650ce9ee0Sniklas goto bad; 1247aed035abSart dumpblks += ctod(cpu_dump_mempagecnt()); 124850ce9ee0Sniklas 124950ce9ee0Sniklas /* If dump won't fit (incl. room for possible label), punt. */ 125050ce9ee0Sniklas if (dumpblks > (nblks - ctod(1))) 125150ce9ee0Sniklas goto bad; 125250ce9ee0Sniklas 125350ce9ee0Sniklas /* Put dump at end of partition */ 125450ce9ee0Sniklas dumplo = nblks - dumpblks; 125550ce9ee0Sniklas 125650ce9ee0Sniklas /* dumpsize is in page units, and doesn't include headers. */ 1257aed035abSart dumpsize = cpu_dump_mempagecnt(); 1258df930be7Sderaadt return; 1259df930be7Sderaadt 126050ce9ee0Sniklas bad: 126150ce9ee0Sniklas dumpsize = 0; 126250ce9ee0Sniklas return; 1263df930be7Sderaadt } 1264df930be7Sderaadt 1265df930be7Sderaadt /* 126650ce9ee0Sniklas * Dump the kernel's image to the swap partition. 1267df930be7Sderaadt */ 126850ce9ee0Sniklas #define BYTES_PER_DUMP NBPG 126950ce9ee0Sniklas 1270df930be7Sderaadt void 1271df930be7Sderaadt dumpsys() 1272df930be7Sderaadt { 1273aed035abSart u_long totalbytesleft, bytes, i, n, memcl; 1274aed035abSart u_long maddr; 1275aed035abSart int psize; 127650ce9ee0Sniklas daddr_t blkno; 1277c4071fd1Smillert int (*dump)(dev_t, daddr_t, caddr_t, size_t); 127850ce9ee0Sniklas int error; 1279067cbd75Sderaadt extern int msgbufmapped; 1280df930be7Sderaadt 128150ce9ee0Sniklas /* Save registers. */ 128250ce9ee0Sniklas savectx(&dumppcb); 128350ce9ee0Sniklas 128450ce9ee0Sniklas msgbufmapped = 0; /* don't record dump msgs in msgbuf */ 1285df930be7Sderaadt if (dumpdev == NODEV) 1286df930be7Sderaadt return; 128750ce9ee0Sniklas 128850ce9ee0Sniklas /* 128950ce9ee0Sniklas * For dumps during autoconfiguration, 129050ce9ee0Sniklas * if dump device has already configured... 129150ce9ee0Sniklas */ 1292df930be7Sderaadt if (dumpsize == 0) 129350ce9ee0Sniklas dumpconf(); 129450ce9ee0Sniklas if (dumplo <= 0) { 1295aed035abSart printf("\ndump to dev %u,%u not possible\n", major(dumpdev), 1296aed035abSart minor(dumpdev)); 1297df930be7Sderaadt return; 1298df930be7Sderaadt } 1299aed035abSart printf("\ndumping to dev %u,%u offset %ld\n", major(dumpdev), 1300aed035abSart minor(dumpdev), dumplo); 1301df930be7Sderaadt 130250ce9ee0Sniklas psize = (*bdevsw[major(dumpdev)].d_psize)(dumpdev); 1303df930be7Sderaadt printf("dump "); 130450ce9ee0Sniklas if (psize == -1) { 130550ce9ee0Sniklas printf("area unavailable\n"); 130650ce9ee0Sniklas return; 130750ce9ee0Sniklas } 130850ce9ee0Sniklas 130950ce9ee0Sniklas /* XXX should purge all outstanding keystrokes. */ 131050ce9ee0Sniklas 131150ce9ee0Sniklas if ((error = cpu_dump()) != 0) 131250ce9ee0Sniklas goto err; 131350ce9ee0Sniklas 1314aed035abSart totalbytesleft = ptoa(cpu_dump_mempagecnt()); 131550ce9ee0Sniklas blkno = dumplo + cpu_dumpsize(); 131650ce9ee0Sniklas dump = bdevsw[major(dumpdev)].d_dump; 131750ce9ee0Sniklas error = 0; 1318aed035abSart 1319aed035abSart for (memcl = 0; memcl < mem_cluster_cnt; memcl++) { 1320aed035abSart maddr = mem_clusters[memcl].start; 1321aed035abSart bytes = mem_clusters[memcl].size & ~PAGE_MASK; 1322aed035abSart 1323aed035abSart for (i = 0; i < bytes; i += n, totalbytesleft -= n) { 132450ce9ee0Sniklas 132550ce9ee0Sniklas /* Print out how many MBs we to go. */ 1326aed035abSart if ((totalbytesleft % (1024*1024)) == 0) 1327aed035abSart printf("%ld ", totalbytesleft / (1024 * 1024)); 132850ce9ee0Sniklas 132950ce9ee0Sniklas /* Limit size for next transfer. */ 1330aed035abSart n = bytes - i; 133150ce9ee0Sniklas if (n > BYTES_PER_DUMP) 133250ce9ee0Sniklas n = BYTES_PER_DUMP; 133350ce9ee0Sniklas 133450ce9ee0Sniklas error = (*dump)(dumpdev, blkno, 133550ce9ee0Sniklas (caddr_t)ALPHA_PHYS_TO_K0SEG(maddr), n); 133650ce9ee0Sniklas if (error) 1337aed035abSart goto err; 133850ce9ee0Sniklas maddr += n; 133950ce9ee0Sniklas blkno += btodb(n); /* XXX? */ 134050ce9ee0Sniklas 134150ce9ee0Sniklas /* XXX should look for keystrokes, to cancel. */ 134250ce9ee0Sniklas } 1343aed035abSart } 134450ce9ee0Sniklas 134550ce9ee0Sniklas err: 134650ce9ee0Sniklas switch (error) { 1347*a37778bcSderaadt #ifdef DEBUG 1348df930be7Sderaadt case ENXIO: 1349df930be7Sderaadt printf("device bad\n"); 1350df930be7Sderaadt break; 1351df930be7Sderaadt 1352df930be7Sderaadt case EFAULT: 1353df930be7Sderaadt printf("device not ready\n"); 1354df930be7Sderaadt break; 1355df930be7Sderaadt 1356df930be7Sderaadt case EINVAL: 1357df930be7Sderaadt printf("area improper\n"); 1358df930be7Sderaadt break; 1359df930be7Sderaadt 1360df930be7Sderaadt case EIO: 1361df930be7Sderaadt printf("i/o error\n"); 1362df930be7Sderaadt break; 1363df930be7Sderaadt 1364df930be7Sderaadt case EINTR: 1365df930be7Sderaadt printf("aborted from console\n"); 1366df930be7Sderaadt break; 1367*a37778bcSderaadt #endif /* DEBUG */ 136850ce9ee0Sniklas case 0: 1369df930be7Sderaadt printf("succeeded\n"); 1370df930be7Sderaadt break; 137150ce9ee0Sniklas 137250ce9ee0Sniklas default: 137350ce9ee0Sniklas printf("error %d\n", error); 137450ce9ee0Sniklas break; 1375df930be7Sderaadt } 1376df930be7Sderaadt printf("\n\n"); 1377df930be7Sderaadt delay(1000); 1378df930be7Sderaadt } 1379df930be7Sderaadt 1380df930be7Sderaadt void 1381df930be7Sderaadt frametoreg(framep, regp) 1382df930be7Sderaadt struct trapframe *framep; 1383df930be7Sderaadt struct reg *regp; 1384df930be7Sderaadt { 1385df930be7Sderaadt 1386df930be7Sderaadt regp->r_regs[R_V0] = framep->tf_regs[FRAME_V0]; 1387df930be7Sderaadt regp->r_regs[R_T0] = framep->tf_regs[FRAME_T0]; 1388df930be7Sderaadt regp->r_regs[R_T1] = framep->tf_regs[FRAME_T1]; 1389df930be7Sderaadt regp->r_regs[R_T2] = framep->tf_regs[FRAME_T2]; 1390df930be7Sderaadt regp->r_regs[R_T3] = framep->tf_regs[FRAME_T3]; 1391df930be7Sderaadt regp->r_regs[R_T4] = framep->tf_regs[FRAME_T4]; 1392df930be7Sderaadt regp->r_regs[R_T5] = framep->tf_regs[FRAME_T5]; 1393df930be7Sderaadt regp->r_regs[R_T6] = framep->tf_regs[FRAME_T6]; 1394df930be7Sderaadt regp->r_regs[R_T7] = framep->tf_regs[FRAME_T7]; 1395df930be7Sderaadt regp->r_regs[R_S0] = framep->tf_regs[FRAME_S0]; 1396df930be7Sderaadt regp->r_regs[R_S1] = framep->tf_regs[FRAME_S1]; 1397df930be7Sderaadt regp->r_regs[R_S2] = framep->tf_regs[FRAME_S2]; 1398df930be7Sderaadt regp->r_regs[R_S3] = framep->tf_regs[FRAME_S3]; 1399df930be7Sderaadt regp->r_regs[R_S4] = framep->tf_regs[FRAME_S4]; 1400df930be7Sderaadt regp->r_regs[R_S5] = framep->tf_regs[FRAME_S5]; 1401df930be7Sderaadt regp->r_regs[R_S6] = framep->tf_regs[FRAME_S6]; 140250ce9ee0Sniklas regp->r_regs[R_A0] = framep->tf_regs[FRAME_A0]; 140350ce9ee0Sniklas regp->r_regs[R_A1] = framep->tf_regs[FRAME_A1]; 140450ce9ee0Sniklas regp->r_regs[R_A2] = framep->tf_regs[FRAME_A2]; 1405df930be7Sderaadt regp->r_regs[R_A3] = framep->tf_regs[FRAME_A3]; 1406df930be7Sderaadt regp->r_regs[R_A4] = framep->tf_regs[FRAME_A4]; 1407df930be7Sderaadt regp->r_regs[R_A5] = framep->tf_regs[FRAME_A5]; 1408df930be7Sderaadt regp->r_regs[R_T8] = framep->tf_regs[FRAME_T8]; 1409df930be7Sderaadt regp->r_regs[R_T9] = framep->tf_regs[FRAME_T9]; 1410df930be7Sderaadt regp->r_regs[R_T10] = framep->tf_regs[FRAME_T10]; 1411df930be7Sderaadt regp->r_regs[R_T11] = framep->tf_regs[FRAME_T11]; 1412df930be7Sderaadt regp->r_regs[R_RA] = framep->tf_regs[FRAME_RA]; 1413df930be7Sderaadt regp->r_regs[R_T12] = framep->tf_regs[FRAME_T12]; 1414df930be7Sderaadt regp->r_regs[R_AT] = framep->tf_regs[FRAME_AT]; 141550ce9ee0Sniklas regp->r_regs[R_GP] = framep->tf_regs[FRAME_GP]; 141650ce9ee0Sniklas /* regp->r_regs[R_SP] = framep->tf_regs[FRAME_SP]; XXX */ 1417df930be7Sderaadt regp->r_regs[R_ZERO] = 0; 1418df930be7Sderaadt } 1419df930be7Sderaadt 1420df930be7Sderaadt void 1421df930be7Sderaadt regtoframe(regp, framep) 1422df930be7Sderaadt struct reg *regp; 1423df930be7Sderaadt struct trapframe *framep; 1424df930be7Sderaadt { 1425df930be7Sderaadt 1426df930be7Sderaadt framep->tf_regs[FRAME_V0] = regp->r_regs[R_V0]; 1427df930be7Sderaadt framep->tf_regs[FRAME_T0] = regp->r_regs[R_T0]; 1428df930be7Sderaadt framep->tf_regs[FRAME_T1] = regp->r_regs[R_T1]; 1429df930be7Sderaadt framep->tf_regs[FRAME_T2] = regp->r_regs[R_T2]; 1430df930be7Sderaadt framep->tf_regs[FRAME_T3] = regp->r_regs[R_T3]; 1431df930be7Sderaadt framep->tf_regs[FRAME_T4] = regp->r_regs[R_T4]; 1432df930be7Sderaadt framep->tf_regs[FRAME_T5] = regp->r_regs[R_T5]; 1433df930be7Sderaadt framep->tf_regs[FRAME_T6] = regp->r_regs[R_T6]; 1434df930be7Sderaadt framep->tf_regs[FRAME_T7] = regp->r_regs[R_T7]; 1435df930be7Sderaadt framep->tf_regs[FRAME_S0] = regp->r_regs[R_S0]; 1436df930be7Sderaadt framep->tf_regs[FRAME_S1] = regp->r_regs[R_S1]; 1437df930be7Sderaadt framep->tf_regs[FRAME_S2] = regp->r_regs[R_S2]; 1438df930be7Sderaadt framep->tf_regs[FRAME_S3] = regp->r_regs[R_S3]; 1439df930be7Sderaadt framep->tf_regs[FRAME_S4] = regp->r_regs[R_S4]; 1440df930be7Sderaadt framep->tf_regs[FRAME_S5] = regp->r_regs[R_S5]; 1441df930be7Sderaadt framep->tf_regs[FRAME_S6] = regp->r_regs[R_S6]; 144250ce9ee0Sniklas framep->tf_regs[FRAME_A0] = regp->r_regs[R_A0]; 144350ce9ee0Sniklas framep->tf_regs[FRAME_A1] = regp->r_regs[R_A1]; 144450ce9ee0Sniklas framep->tf_regs[FRAME_A2] = regp->r_regs[R_A2]; 1445df930be7Sderaadt framep->tf_regs[FRAME_A3] = regp->r_regs[R_A3]; 1446df930be7Sderaadt framep->tf_regs[FRAME_A4] = regp->r_regs[R_A4]; 1447df930be7Sderaadt framep->tf_regs[FRAME_A5] = regp->r_regs[R_A5]; 1448df930be7Sderaadt framep->tf_regs[FRAME_T8] = regp->r_regs[R_T8]; 1449df930be7Sderaadt framep->tf_regs[FRAME_T9] = regp->r_regs[R_T9]; 1450df930be7Sderaadt framep->tf_regs[FRAME_T10] = regp->r_regs[R_T10]; 1451df930be7Sderaadt framep->tf_regs[FRAME_T11] = regp->r_regs[R_T11]; 1452df930be7Sderaadt framep->tf_regs[FRAME_RA] = regp->r_regs[R_RA]; 1453df930be7Sderaadt framep->tf_regs[FRAME_T12] = regp->r_regs[R_T12]; 1454df930be7Sderaadt framep->tf_regs[FRAME_AT] = regp->r_regs[R_AT]; 145550ce9ee0Sniklas framep->tf_regs[FRAME_GP] = regp->r_regs[R_GP]; 145650ce9ee0Sniklas /* framep->tf_regs[FRAME_SP] = regp->r_regs[R_SP]; XXX */ 1457df930be7Sderaadt /* ??? = regp->r_regs[R_ZERO]; */ 1458df930be7Sderaadt } 1459df930be7Sderaadt 1460df930be7Sderaadt void 1461df930be7Sderaadt printregs(regp) 1462df930be7Sderaadt struct reg *regp; 1463df930be7Sderaadt { 1464df930be7Sderaadt int i; 1465df930be7Sderaadt 1466df930be7Sderaadt for (i = 0; i < 32; i++) 1467df930be7Sderaadt printf("R%d:\t0x%016lx%s", i, regp->r_regs[i], 1468df930be7Sderaadt i & 1 ? "\n" : "\t"); 1469df930be7Sderaadt } 1470df930be7Sderaadt 1471df930be7Sderaadt void 1472df930be7Sderaadt regdump(framep) 1473df930be7Sderaadt struct trapframe *framep; 1474df930be7Sderaadt { 1475df930be7Sderaadt struct reg reg; 1476df930be7Sderaadt 1477df930be7Sderaadt frametoreg(framep, ®); 147850ce9ee0Sniklas reg.r_regs[R_SP] = alpha_pal_rdusp(); 147950ce9ee0Sniklas 1480df930be7Sderaadt printf("REGISTERS:\n"); 1481df930be7Sderaadt printregs(®); 1482df930be7Sderaadt } 1483df930be7Sderaadt 1484df930be7Sderaadt #ifdef DEBUG 1485df930be7Sderaadt int sigdebug = 0; 1486df930be7Sderaadt int sigpid = 0; 1487df930be7Sderaadt #define SDB_FOLLOW 0x01 1488df930be7Sderaadt #define SDB_KSTACK 0x02 1489df930be7Sderaadt #endif 1490df930be7Sderaadt 1491df930be7Sderaadt /* 1492df930be7Sderaadt * Send an interrupt to process. 1493df930be7Sderaadt */ 1494df930be7Sderaadt void 14955e1760a6Sderaadt sendsig(catcher, sig, mask, code, type, val) 1496df930be7Sderaadt sig_t catcher; 1497df930be7Sderaadt int sig, mask; 1498df930be7Sderaadt u_long code; 14995e1760a6Sderaadt int type; 15005e1760a6Sderaadt union sigval val; 1501df930be7Sderaadt { 1502df930be7Sderaadt struct proc *p = curproc; 1503df930be7Sderaadt struct sigcontext *scp, ksc; 1504df930be7Sderaadt struct trapframe *frame; 1505df930be7Sderaadt struct sigacts *psp = p->p_sigacts; 15062bf9c155Sderaadt int oonstack, fsize, rndfsize, kscsize; 15072bf9c155Sderaadt siginfo_t *sip, ksi; 1508df930be7Sderaadt 1509df930be7Sderaadt frame = p->p_md.md_tf; 1510df930be7Sderaadt oonstack = psp->ps_sigstk.ss_flags & SS_ONSTACK; 1511df930be7Sderaadt fsize = sizeof ksc; 1512df930be7Sderaadt rndfsize = ((fsize + 15) / 16) * 16; 15132bf9c155Sderaadt kscsize = rndfsize; 15142bf9c155Sderaadt if (psp->ps_siginfo & sigmask(sig)) { 15152bf9c155Sderaadt fsize += sizeof ksi; 15162bf9c155Sderaadt rndfsize = ((fsize + 15) / 16) * 16; 15172bf9c155Sderaadt } 151874652a67Sniklas 1519df930be7Sderaadt /* 1520df930be7Sderaadt * Allocate and validate space for the signal handler 1521df930be7Sderaadt * context. Note that if the stack is in P0 space, the 1522aed035abSart * call to uvm_grow() is a nop, and the useracc() check 1523df930be7Sderaadt * will fail if the process has not already allocated 1524df930be7Sderaadt * the space with a `brk'. 1525df930be7Sderaadt */ 1526df930be7Sderaadt if ((psp->ps_flags & SAS_ALTSTACK) && !oonstack && 1527df930be7Sderaadt (psp->ps_sigonstack & sigmask(sig))) { 15288bc2093aSderaadt scp = (struct sigcontext *)(psp->ps_sigstk.ss_sp + 1529df930be7Sderaadt psp->ps_sigstk.ss_size - rndfsize); 1530df930be7Sderaadt psp->ps_sigstk.ss_flags |= SS_ONSTACK; 1531df930be7Sderaadt } else 153250ce9ee0Sniklas scp = (struct sigcontext *)(alpha_pal_rdusp() - rndfsize); 1533df930be7Sderaadt if ((u_long)scp <= USRSTACK - ctob(p->p_vmspace->vm_ssize)) 1534aed035abSart (void)uvm_grow(p, (u_long)scp); 1535df930be7Sderaadt #ifdef DEBUG 1536df930be7Sderaadt if ((sigdebug & SDB_KSTACK) && p->p_pid == sigpid) 153750ce9ee0Sniklas printf("sendsig(%d): sig %d ssp %p usp %p\n", p->p_pid, 1538df930be7Sderaadt sig, &oonstack, scp); 1539df930be7Sderaadt #endif 1540df930be7Sderaadt 1541df930be7Sderaadt /* 1542df930be7Sderaadt * Build the signal context to be used by sigreturn. 1543df930be7Sderaadt */ 1544df930be7Sderaadt ksc.sc_onstack = oonstack; 1545df930be7Sderaadt ksc.sc_mask = mask; 154650ce9ee0Sniklas ksc.sc_pc = frame->tf_regs[FRAME_PC]; 154750ce9ee0Sniklas ksc.sc_ps = frame->tf_regs[FRAME_PS]; 1548df930be7Sderaadt 1549df930be7Sderaadt /* copy the registers. */ 1550df930be7Sderaadt frametoreg(frame, (struct reg *)ksc.sc_regs); 1551df930be7Sderaadt ksc.sc_regs[R_ZERO] = 0xACEDBADE; /* magic number */ 155250ce9ee0Sniklas ksc.sc_regs[R_SP] = alpha_pal_rdusp(); 1553df930be7Sderaadt 1554df930be7Sderaadt /* save the floating-point state, if necessary, then copy it. */ 1555433075b6Spvalchev if (p->p_addr->u_pcb.pcb_fpcpu != NULL) 1556433075b6Spvalchev fpusave_proc(p, 1); 1557df930be7Sderaadt ksc.sc_ownedfp = p->p_md.md_flags & MDP_FPUSED; 1558433075b6Spvalchev memcpy((struct fpreg *)ksc.sc_fpregs, &p->p_addr->u_pcb.pcb_fp, 1559df930be7Sderaadt sizeof(struct fpreg)); 1560433075b6Spvalchev #ifndef NO_IEEE 1561433075b6Spvalchev ksc.sc_fp_control = alpha_read_fp_c(p); 1562433075b6Spvalchev #else 1563433075b6Spvalchev ksc.sc_fp_control = 0; 1564433075b6Spvalchev #endif 1565433075b6Spvalchev memset(ksc.sc_reserved, 0, sizeof ksc.sc_reserved); /* XXX */ 1566433075b6Spvalchev memset(ksc.sc_xxx, 0, sizeof ksc.sc_xxx); /* XXX */ 1567df930be7Sderaadt 1568df930be7Sderaadt #ifdef COMPAT_OSF1 1569df930be7Sderaadt /* 1570df930be7Sderaadt * XXX Create an OSF/1-style sigcontext and associated goo. 1571df930be7Sderaadt */ 1572df930be7Sderaadt #endif 1573df930be7Sderaadt 15742bf9c155Sderaadt if (psp->ps_siginfo & sigmask(sig)) { 15752bf9c155Sderaadt initsiginfo(&ksi, sig, code, type, val); 15762bf9c155Sderaadt sip = (void *)scp + kscsize; 1577679ebc41Smiod if (copyout((caddr_t)&ksi, (caddr_t)sip, fsize - kscsize) != 0) 1578679ebc41Smiod goto trash; 1579aa540fb8Sart } else 1580aa540fb8Sart sip = NULL; 15812bf9c155Sderaadt 1582df930be7Sderaadt /* 1583df930be7Sderaadt * copy the frame out to userland. 1584df930be7Sderaadt */ 1585679ebc41Smiod if (copyout((caddr_t)&ksc, (caddr_t)scp, kscsize) != 0) { 1586679ebc41Smiod trash: 1587679ebc41Smiod #ifdef DEBUG 1588679ebc41Smiod if ((sigdebug & SDB_KSTACK) && p->p_pid == sigpid) 1589679ebc41Smiod printf("sendsig(%d): copyout failed on sig %d\n", 1590679ebc41Smiod p->p_pid, sig); 1591679ebc41Smiod #endif 1592679ebc41Smiod /* 1593679ebc41Smiod * Process has trashed its stack; give it an illegal 1594679ebc41Smiod * instruction to halt it in its tracks. 1595679ebc41Smiod */ 1596679ebc41Smiod SIGACTION(p, SIGILL) = SIG_DFL; 1597679ebc41Smiod sig = sigmask(SIGILL); 1598679ebc41Smiod p->p_sigignore &= ~sig; 1599679ebc41Smiod p->p_sigcatch &= ~sig; 1600679ebc41Smiod p->p_sigmask &= ~sig; 1601679ebc41Smiod psignal(p, SIGILL); 1602679ebc41Smiod return; 1603679ebc41Smiod } 1604df930be7Sderaadt #ifdef DEBUG 1605df930be7Sderaadt if (sigdebug & SDB_FOLLOW) 160650ce9ee0Sniklas printf("sendsig(%d): sig %d scp %p code %lx\n", p->p_pid, sig, 1607df930be7Sderaadt scp, code); 1608df930be7Sderaadt #endif 1609df930be7Sderaadt 1610df930be7Sderaadt /* 1611df930be7Sderaadt * Set up the registers to return to sigcode. 1612df930be7Sderaadt */ 16134a5480feSart frame->tf_regs[FRAME_PC] = p->p_sigcode; 161450ce9ee0Sniklas frame->tf_regs[FRAME_A0] = sig; 1615aa540fb8Sart frame->tf_regs[FRAME_A1] = (u_int64_t)sip; 161650ce9ee0Sniklas frame->tf_regs[FRAME_A2] = (u_int64_t)scp; 1617df930be7Sderaadt frame->tf_regs[FRAME_T12] = (u_int64_t)catcher; /* t12 is pv */ 161850ce9ee0Sniklas alpha_pal_wrusp((unsigned long)scp); 1619df930be7Sderaadt 1620df930be7Sderaadt #ifdef DEBUG 1621df930be7Sderaadt if (sigdebug & SDB_FOLLOW) 1622df930be7Sderaadt printf("sendsig(%d): pc %lx, catcher %lx\n", p->p_pid, 162350ce9ee0Sniklas frame->tf_regs[FRAME_PC], frame->tf_regs[FRAME_A3]); 1624df930be7Sderaadt if ((sigdebug & SDB_KSTACK) && p->p_pid == sigpid) 1625df930be7Sderaadt printf("sendsig(%d): sig %d returns\n", 1626df930be7Sderaadt p->p_pid, sig); 1627df930be7Sderaadt #endif 1628df930be7Sderaadt } 1629df930be7Sderaadt 1630df930be7Sderaadt /* 1631df930be7Sderaadt * System call to cleanup state after a signal 1632df930be7Sderaadt * has been taken. Reset signal mask and 1633df930be7Sderaadt * stack state from context left by sendsig (above). 1634df930be7Sderaadt * Return to previous pc and psl as specified by 1635df930be7Sderaadt * context left by sendsig. Check carefully to 1636df930be7Sderaadt * make sure that the user has not modified the 1637125cd19fSderaadt * psl to gain improper privileges or to cause 1638df930be7Sderaadt * a machine fault. 1639df930be7Sderaadt */ 1640df930be7Sderaadt /* ARGSUSED */ 1641df930be7Sderaadt int 1642df930be7Sderaadt sys_sigreturn(p, v, retval) 1643df930be7Sderaadt struct proc *p; 1644df930be7Sderaadt void *v; 1645df930be7Sderaadt register_t *retval; 1646df930be7Sderaadt { 1647df930be7Sderaadt struct sys_sigreturn_args /* { 1648df930be7Sderaadt syscallarg(struct sigcontext *) sigcntxp; 1649df930be7Sderaadt } */ *uap = v; 1650aa540fb8Sart struct sigcontext ksc; 1651aa540fb8Sart int error; 1652df930be7Sderaadt 1653df930be7Sderaadt #ifdef DEBUG 1654df930be7Sderaadt if (sigdebug & SDB_FOLLOW) 165550ce9ee0Sniklas printf("sigreturn: pid %d, scp %p\n", p->p_pid, scp); 1656df930be7Sderaadt #endif 1657df930be7Sderaadt 1658df930be7Sderaadt /* 1659df930be7Sderaadt * Test and fetch the context structure. 1660df930be7Sderaadt * We grab it all at once for speed. 1661df930be7Sderaadt */ 1662aa540fb8Sart if ((error = copyin(SCARG(uap, sigcntxp), &ksc, sizeof(ksc))) != 0) 1663aa540fb8Sart return (error); 1664df930be7Sderaadt 1665df930be7Sderaadt if (ksc.sc_regs[R_ZERO] != 0xACEDBADE) /* magic number */ 1666df930be7Sderaadt return (EINVAL); 1667df930be7Sderaadt /* 1668df930be7Sderaadt * Restore the user-supplied information 1669df930be7Sderaadt */ 1670df930be7Sderaadt if (ksc.sc_onstack) 1671df930be7Sderaadt p->p_sigacts->ps_sigstk.ss_flags |= SS_ONSTACK; 1672df930be7Sderaadt else 1673df930be7Sderaadt p->p_sigacts->ps_sigstk.ss_flags &= ~SS_ONSTACK; 1674df930be7Sderaadt p->p_sigmask = ksc.sc_mask &~ sigcantmask; 1675df930be7Sderaadt 167650ce9ee0Sniklas p->p_md.md_tf->tf_regs[FRAME_PC] = ksc.sc_pc; 167750ce9ee0Sniklas p->p_md.md_tf->tf_regs[FRAME_PS] = 167850ce9ee0Sniklas (ksc.sc_ps | ALPHA_PSL_USERSET) & ~ALPHA_PSL_USERCLR; 1679df930be7Sderaadt 1680df930be7Sderaadt regtoframe((struct reg *)ksc.sc_regs, p->p_md.md_tf); 168150ce9ee0Sniklas alpha_pal_wrusp(ksc.sc_regs[R_SP]); 1682df930be7Sderaadt 1683df930be7Sderaadt /* XXX ksc.sc_ownedfp ? */ 1684433075b6Spvalchev if (p->p_addr->u_pcb.pcb_fpcpu != NULL) 1685433075b6Spvalchev fpusave_proc(p, 0); 1686433075b6Spvalchev memcpy(&p->p_addr->u_pcb.pcb_fp, (struct fpreg *)ksc.sc_fpregs, 1687df930be7Sderaadt sizeof(struct fpreg)); 1688433075b6Spvalchev #ifndef NO_IEEE 1689433075b6Spvalchev p->p_addr->u_pcb.pcb_fp.fpr_cr = ksc.sc_fpcr; 1690433075b6Spvalchev p->p_md.md_flags = ksc.sc_fp_control & MDP_FP_C; 1691433075b6Spvalchev #endif 1692df930be7Sderaadt 1693df930be7Sderaadt #ifdef DEBUG 1694df930be7Sderaadt if (sigdebug & SDB_FOLLOW) 1695df930be7Sderaadt printf("sigreturn(%d): returns\n", p->p_pid); 1696df930be7Sderaadt #endif 1697df930be7Sderaadt return (EJUSTRETURN); 1698df930be7Sderaadt } 1699df930be7Sderaadt 1700df930be7Sderaadt /* 1701df930be7Sderaadt * machine dependent system variables. 1702df930be7Sderaadt */ 170350ce9ee0Sniklas int 1704df930be7Sderaadt cpu_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 1705df930be7Sderaadt int *name; 1706df930be7Sderaadt u_int namelen; 1707df930be7Sderaadt void *oldp; 1708df930be7Sderaadt size_t *oldlenp; 1709df930be7Sderaadt void *newp; 1710df930be7Sderaadt size_t newlen; 1711df930be7Sderaadt struct proc *p; 1712df930be7Sderaadt { 1713df930be7Sderaadt dev_t consdev; 1714df930be7Sderaadt 171545e5a1a0Sart if (name[0] != CPU_CHIPSET && namelen != 1) 1716df930be7Sderaadt return (ENOTDIR); /* overloaded */ 1717df930be7Sderaadt 1718df930be7Sderaadt switch (name[0]) { 1719df930be7Sderaadt case CPU_CONSDEV: 1720df930be7Sderaadt if (cn_tab != NULL) 1721df930be7Sderaadt consdev = cn_tab->cn_dev; 1722df930be7Sderaadt else 1723df930be7Sderaadt consdev = NODEV; 1724df930be7Sderaadt return (sysctl_rdstruct(oldp, oldlenp, newp, &consdev, 1725df930be7Sderaadt sizeof consdev)); 1726417eba8cSderaadt 1727417eba8cSderaadt case CPU_ROOT_DEVICE: 1728aed035abSart return (sysctl_rdstring(oldp, oldlenp, newp, 1729aed035abSart root_device)); 1730*a37778bcSderaadt #ifndef SMALL_KERNEL 173150ce9ee0Sniklas case CPU_UNALIGNED_PRINT: 173250ce9ee0Sniklas return (sysctl_int(oldp, oldlenp, newp, newlen, 173350ce9ee0Sniklas &alpha_unaligned_print)); 173450ce9ee0Sniklas 173550ce9ee0Sniklas case CPU_UNALIGNED_FIX: 173650ce9ee0Sniklas return (sysctl_int(oldp, oldlenp, newp, newlen, 173750ce9ee0Sniklas &alpha_unaligned_fix)); 173850ce9ee0Sniklas 173950ce9ee0Sniklas case CPU_UNALIGNED_SIGBUS: 174050ce9ee0Sniklas return (sysctl_int(oldp, oldlenp, newp, newlen, 174150ce9ee0Sniklas &alpha_unaligned_sigbus)); 174250ce9ee0Sniklas 17433a630e3fSniklas case CPU_BOOTED_KERNEL: 1744aed035abSart return (sysctl_rdstring(oldp, oldlenp, newp, 1745aed035abSart bootinfo.booted_kernel)); 17463a630e3fSniklas 174745e5a1a0Sart case CPU_CHIPSET: 174845e5a1a0Sart return (alpha_sysctl_chipset(name + 1, namelen - 1, oldp, 174945e5a1a0Sart oldlenp)); 1750*a37778bcSderaadt #endif /* SMALL_KERNEL */ 1751433075b6Spvalchev 1752433075b6Spvalchev #ifndef NO_IEEE 1753433075b6Spvalchev case CPU_FP_SYNC_COMPLETE: 1754433075b6Spvalchev return (sysctl_int(oldp, oldlenp, newp, newlen, 1755433075b6Spvalchev &alpha_fp_sync_complete)); 1756433075b6Spvalchev #endif 175727626149Smatthieu case CPU_ALLOWAPERTURE: 175827626149Smatthieu #ifdef APERTURE 175927626149Smatthieu if (securelevel > 0) 176027626149Smatthieu return (sysctl_rdint(oldp, oldlenp, newp, 176127626149Smatthieu allowaperture)); 176227626149Smatthieu else 176327626149Smatthieu return (sysctl_int(oldp, oldlenp, newp, newlen, 176427626149Smatthieu &allowaperture)); 176527626149Smatthieu #else 176627626149Smatthieu return (sysctl_rdint(oldp, oldlenp, newp, 0)); 176727626149Smatthieu #endif 1768df930be7Sderaadt default: 1769df930be7Sderaadt return (EOPNOTSUPP); 1770df930be7Sderaadt } 1771df930be7Sderaadt /* NOTREACHED */ 1772df930be7Sderaadt } 1773df930be7Sderaadt 1774df930be7Sderaadt /* 1775df930be7Sderaadt * Set registers on exec. 1776df930be7Sderaadt */ 1777df930be7Sderaadt void 1778df930be7Sderaadt setregs(p, pack, stack, retval) 1779df930be7Sderaadt register struct proc *p; 1780df930be7Sderaadt struct exec_package *pack; 1781df930be7Sderaadt u_long stack; 1782df930be7Sderaadt register_t *retval; 1783df930be7Sderaadt { 1784df930be7Sderaadt struct trapframe *tfp = p->p_md.md_tf; 17853a630e3fSniklas #ifdef DEBUG 17863a630e3fSniklas int i; 17873a630e3fSniklas #endif 1788df930be7Sderaadt 1789df930be7Sderaadt #ifdef DEBUG 179050ce9ee0Sniklas /* 179150ce9ee0Sniklas * Crash and dump, if the user requested it. 179250ce9ee0Sniklas */ 179350ce9ee0Sniklas if (boothowto & RB_DUMP) 179450ce9ee0Sniklas panic("crash requested by boot flags"); 179550ce9ee0Sniklas #endif 179650ce9ee0Sniklas 179750ce9ee0Sniklas #ifdef DEBUG 179850ce9ee0Sniklas for (i = 0; i < FRAME_SIZE; i++) 1799df930be7Sderaadt tfp->tf_regs[i] = 0xbabefacedeadbeef; 1800df930be7Sderaadt #else 180150ce9ee0Sniklas bzero(tfp->tf_regs, FRAME_SIZE * sizeof tfp->tf_regs[0]); 1802df930be7Sderaadt #endif 1803df930be7Sderaadt bzero(&p->p_addr->u_pcb.pcb_fp, sizeof p->p_addr->u_pcb.pcb_fp); 180450ce9ee0Sniklas alpha_pal_wrusp(stack); 180550ce9ee0Sniklas tfp->tf_regs[FRAME_PS] = ALPHA_PSL_USERSET; 180650ce9ee0Sniklas tfp->tf_regs[FRAME_PC] = pack->ep_entry & ~3; 1807df930be7Sderaadt 180850ce9ee0Sniklas tfp->tf_regs[FRAME_A0] = stack; 180950ce9ee0Sniklas /* a1 and a2 already zeroed */ 181050ce9ee0Sniklas tfp->tf_regs[FRAME_T12] = tfp->tf_regs[FRAME_PC]; /* a.k.a. PV */ 181150ce9ee0Sniklas 181250ce9ee0Sniklas p->p_md.md_flags &= ~MDP_FPUSED; 1813433075b6Spvalchev #ifndef NO_IEEE 1814433075b6Spvalchev if (__predict_true((p->p_md.md_flags & IEEE_INHERIT) == 0)) { 1815433075b6Spvalchev p->p_md.md_flags &= ~MDP_FP_C; 1816433075b6Spvalchev p->p_addr->u_pcb.pcb_fp.fpr_cr = FPCR_DYN(FP_RN); 1817433075b6Spvalchev } 1818433075b6Spvalchev #endif 1819433075b6Spvalchev if (p->p_addr->u_pcb.pcb_fpcpu != NULL) 1820433075b6Spvalchev fpusave_proc(p, 0); 1821433075b6Spvalchev } 1822df930be7Sderaadt 1823433075b6Spvalchev /* 1824433075b6Spvalchev * Release the FPU. 1825433075b6Spvalchev */ 1826433075b6Spvalchev void 1827433075b6Spvalchev fpusave_cpu(struct cpu_info *ci, int save) 1828433075b6Spvalchev { 1829433075b6Spvalchev struct proc *p; 1830433075b6Spvalchev #if defined(MULTIPROCESSOR) 1831433075b6Spvalchev int s; 1832433075b6Spvalchev #endif 1833433075b6Spvalchev 1834433075b6Spvalchev KDASSERT(ci == curcpu()); 1835433075b6Spvalchev 1836433075b6Spvalchev #if defined(MULTIPROCESSOR) 1837433075b6Spvalchev atomic_setbits_ulong(&ci->ci_flags, CPUF_FPUSAVE); 1838433075b6Spvalchev #endif 1839433075b6Spvalchev 1840433075b6Spvalchev p = ci->ci_fpcurproc; 1841433075b6Spvalchev if (p == NULL) 1842433075b6Spvalchev goto out; 1843433075b6Spvalchev 1844433075b6Spvalchev if (save) { 1845433075b6Spvalchev alpha_pal_wrfen(1); 1846433075b6Spvalchev savefpstate(&p->p_addr->u_pcb.pcb_fp); 1847433075b6Spvalchev } 1848433075b6Spvalchev 1849433075b6Spvalchev alpha_pal_wrfen(0); 1850433075b6Spvalchev 1851433075b6Spvalchev p->p_addr->u_pcb.pcb_fpcpu = NULL; 1852433075b6Spvalchev ci->ci_fpcurproc = NULL; 1853433075b6Spvalchev 1854433075b6Spvalchev out: 1855433075b6Spvalchev #if defined(MULTIPROCESSOR) 1856433075b6Spvalchev atomic_clearbits_ulong(&ci->ci_flags, CPUF_FPUSAVE); 1857433075b6Spvalchev #endif 1858433075b6Spvalchev return; 1859433075b6Spvalchev } 1860433075b6Spvalchev 1861433075b6Spvalchev /* 1862433075b6Spvalchev * Synchronize FP state for this process. 1863433075b6Spvalchev */ 1864433075b6Spvalchev void 1865433075b6Spvalchev fpusave_proc(struct proc *p, int save) 1866433075b6Spvalchev { 1867433075b6Spvalchev struct cpu_info *ci = curcpu(); 1868433075b6Spvalchev struct cpu_info *oci; 1869433075b6Spvalchev #if defined(MULTIPROCESSOR) 1870433075b6Spvalchev u_long ipi = save ? ALPHA_IPI_SYNCH_FPU : ALPHA_IPI_DISCARD_FPU; 1871433075b6Spvalchev int s, spincount; 1872433075b6Spvalchev #endif 1873433075b6Spvalchev 1874433075b6Spvalchev KDASSERT(p->p_addr != NULL); 1875433075b6Spvalchev 1876433075b6Spvalchev oci = p->p_addr->u_pcb.pcb_fpcpu; 1877433075b6Spvalchev if (oci == NULL) { 1878433075b6Spvalchev return; 1879433075b6Spvalchev } 1880433075b6Spvalchev 1881433075b6Spvalchev #if defined(MULTIPROCESSOR) 1882433075b6Spvalchev if (oci == ci) { 1883433075b6Spvalchev KASSERT(ci->ci_fpcurproc == p); 1884433075b6Spvalchev fpusave_cpu(ci, save); 1885433075b6Spvalchev return; 1886433075b6Spvalchev } 1887433075b6Spvalchev 1888433075b6Spvalchev KASSERT(oci->ci_fpcurproc == p); 1889433075b6Spvalchev alpha_send_ipi(oci->ci_cpuid, ipi); 1890433075b6Spvalchev 1891433075b6Spvalchev spincount = 0; 1892433075b6Spvalchev while (p->p_addr->u_pcb.pcb_fpcpu != NULL) { 1893433075b6Spvalchev spincount++; 1894433075b6Spvalchev delay(1000); /* XXX */ 1895433075b6Spvalchev if (spincount > 10000) 1896433075b6Spvalchev panic("fpsave ipi didn't"); 1897433075b6Spvalchev } 1898433075b6Spvalchev #else 1899433075b6Spvalchev KASSERT(ci->ci_fpcurproc == p); 1900433075b6Spvalchev fpusave_cpu(ci, save); 1901433075b6Spvalchev #endif /* MULTIPROCESSOR */ 1902df930be7Sderaadt } 1903df930be7Sderaadt 1904df930be7Sderaadt int 1905df930be7Sderaadt spl0() 1906df930be7Sderaadt { 1907df930be7Sderaadt 1908aed035abSart if (ssir) { 1909aed035abSart (void) alpha_pal_swpipl(ALPHA_PSL_IPL_SOFT); 19102a2685f2Sart softintr_dispatch(); 1911aed035abSart } 1912df930be7Sderaadt 191350ce9ee0Sniklas return (alpha_pal_swpipl(ALPHA_PSL_IPL_0)); 1914df930be7Sderaadt } 1915df930be7Sderaadt 1916df930be7Sderaadt /* 1917df930be7Sderaadt * The following primitives manipulate the run queues. _whichqs tells which 1918df930be7Sderaadt * of the 32 queues _qs have processes in them. Setrunqueue puts processes 1919e464495eSniklas * into queues, Remrunqueue removes them from queues. The running process is 1920e464495eSniklas * on no queue, other processes are on a queue related to p->p_priority, 1921e464495eSniklas * divided by 4 actually to shrink the 0-127 range of priorities into the 32 1922e464495eSniklas * available queues. 1923df930be7Sderaadt */ 1924df930be7Sderaadt /* 1925df930be7Sderaadt * setrunqueue(p) 1926df930be7Sderaadt * proc *p; 1927df930be7Sderaadt * 1928df930be7Sderaadt * Call should be made at splclock(), and p->p_stat should be SRUN. 1929df930be7Sderaadt */ 1930df930be7Sderaadt 19312a2685f2Sart /* XXXART - grmble */ 19322a2685f2Sart #define sched_qs qs 19332a2685f2Sart #define sched_whichqs whichqs 19342a2685f2Sart 1935df930be7Sderaadt void 1936df930be7Sderaadt setrunqueue(p) 1937df930be7Sderaadt struct proc *p; 1938df930be7Sderaadt { 1939df930be7Sderaadt int bit; 1940df930be7Sderaadt 1941df930be7Sderaadt /* firewall: p->p_back must be NULL */ 1942df930be7Sderaadt if (p->p_back != NULL) 1943df930be7Sderaadt panic("setrunqueue"); 1944df930be7Sderaadt 1945df930be7Sderaadt bit = p->p_priority >> 2; 19462a2685f2Sart sched_whichqs |= (1 << bit); 19472a2685f2Sart p->p_forw = (struct proc *)&sched_qs[bit]; 19482a2685f2Sart p->p_back = sched_qs[bit].ph_rlink; 1949df930be7Sderaadt p->p_back->p_forw = p; 19502a2685f2Sart sched_qs[bit].ph_rlink = p; 1951df930be7Sderaadt } 1952df930be7Sderaadt 1953df930be7Sderaadt /* 1954e464495eSniklas * remrunqueue(p) 1955df930be7Sderaadt * 1956df930be7Sderaadt * Call should be made at splclock(). 1957df930be7Sderaadt */ 1958df930be7Sderaadt void 1959d3cbbad5Skstailey remrunqueue(p) 1960df930be7Sderaadt struct proc *p; 1961df930be7Sderaadt { 1962df930be7Sderaadt int bit; 1963df930be7Sderaadt 1964df930be7Sderaadt bit = p->p_priority >> 2; 19652a2685f2Sart if ((sched_whichqs & (1 << bit)) == 0) 1966d3cbbad5Skstailey panic("remrunqueue"); 1967df930be7Sderaadt 1968df930be7Sderaadt p->p_back->p_forw = p->p_forw; 1969df930be7Sderaadt p->p_forw->p_back = p->p_back; 1970df930be7Sderaadt p->p_back = NULL; /* for firewall checking. */ 1971df930be7Sderaadt 19722a2685f2Sart if ((struct proc *)&sched_qs[bit] == sched_qs[bit].ph_link) 19732a2685f2Sart sched_whichqs &= ~(1 << bit); 1974df930be7Sderaadt } 1975df930be7Sderaadt 1976df930be7Sderaadt /* 1977df930be7Sderaadt * Return the best possible estimate of the time in the timeval 1978df930be7Sderaadt * to which tvp points. Unfortunately, we can't read the hardware registers. 1979df930be7Sderaadt * We guarantee that the time will be greater than the value obtained by a 1980df930be7Sderaadt * previous call. 1981df930be7Sderaadt */ 1982df930be7Sderaadt void 1983df930be7Sderaadt microtime(tvp) 1984df930be7Sderaadt register struct timeval *tvp; 1985df930be7Sderaadt { 1986df930be7Sderaadt int s = splclock(); 1987df930be7Sderaadt static struct timeval lasttime; 1988df930be7Sderaadt 1989df930be7Sderaadt *tvp = time; 1990df930be7Sderaadt #ifdef notdef 1991df930be7Sderaadt tvp->tv_usec += clkread(); 19924c891e15Spjanzen while (tvp->tv_usec >= 1000000) { 1993df930be7Sderaadt tvp->tv_sec++; 1994df930be7Sderaadt tvp->tv_usec -= 1000000; 1995df930be7Sderaadt } 1996df930be7Sderaadt #endif 1997df930be7Sderaadt if (tvp->tv_sec == lasttime.tv_sec && 1998df930be7Sderaadt tvp->tv_usec <= lasttime.tv_usec && 19994c891e15Spjanzen (tvp->tv_usec = lasttime.tv_usec + 1) >= 1000000) { 2000df930be7Sderaadt tvp->tv_sec++; 2001df930be7Sderaadt tvp->tv_usec -= 1000000; 2002df930be7Sderaadt } 2003df930be7Sderaadt lasttime = *tvp; 2004df930be7Sderaadt splx(s); 2005df930be7Sderaadt } 2006df930be7Sderaadt 2007417eba8cSderaadt /* 2008417eba8cSderaadt * Wait "n" microseconds. 2009417eba8cSderaadt */ 201050ce9ee0Sniklas void 2011417eba8cSderaadt delay(n) 201250ce9ee0Sniklas unsigned long n; 2013417eba8cSderaadt { 2014417eba8cSderaadt long N = cycles_per_usec * (n); 2015417eba8cSderaadt 2016aed035abSart /* 2017aed035abSart * XXX Should be written to use RPCC? 2018aed035abSart */ 2019aed035abSart 2020aed035abSart __asm __volatile( 2021aed035abSart "# The 2 corresponds to the insn count\n" 2022aed035abSart "1: subq %2, %1, %0 \n" 2023aed035abSart " bgt %0, 1b" 2024aed035abSart : "=r" (N) 2025aed035abSart : "i" (2), "0" (N)); 2026417eba8cSderaadt } 2027417eba8cSderaadt 20289da89091Sderaadt #if defined(COMPAT_OSF1) 2029c4071fd1Smillert void cpu_exec_ecoff_setregs(struct proc *, struct exec_package *, 2030c4071fd1Smillert u_long, register_t *); 20313a630e3fSniklas 2032df930be7Sderaadt void 2033417eba8cSderaadt cpu_exec_ecoff_setregs(p, epp, stack, retval) 2034df930be7Sderaadt struct proc *p; 2035417eba8cSderaadt struct exec_package *epp; 2036df930be7Sderaadt u_long stack; 2037df930be7Sderaadt register_t *retval; 2038df930be7Sderaadt { 2039417eba8cSderaadt struct ecoff_exechdr *execp = (struct ecoff_exechdr *)epp->ep_hdr; 2040df930be7Sderaadt 2041417eba8cSderaadt setregs(p, epp, stack, retval); 204250ce9ee0Sniklas p->p_md.md_tf->tf_regs[FRAME_GP] = execp->a.gp_value; 2043df930be7Sderaadt } 2044df930be7Sderaadt 2045df930be7Sderaadt /* 2046df930be7Sderaadt * cpu_exec_ecoff_hook(): 2047df930be7Sderaadt * cpu-dependent ECOFF format hook for execve(). 2048df930be7Sderaadt * 2049df930be7Sderaadt * Do any machine-dependent diddling of the exec package when doing ECOFF. 2050df930be7Sderaadt * 2051df930be7Sderaadt */ 2052df930be7Sderaadt int 2053417eba8cSderaadt cpu_exec_ecoff_hook(p, epp) 2054df930be7Sderaadt struct proc *p; 2055df930be7Sderaadt struct exec_package *epp; 2056df930be7Sderaadt { 2057417eba8cSderaadt struct ecoff_exechdr *execp = (struct ecoff_exechdr *)epp->ep_hdr; 2058c3114d5bSericj extern struct emul emul_native; 2059aed035abSart int error; 20604e8700e2Sericj extern int osf1_exec_ecoff_hook(struct proc *, struct exec_package *); 2061df930be7Sderaadt 2062417eba8cSderaadt switch (execp->f.f_magic) { 2063df930be7Sderaadt #ifdef COMPAT_OSF1 2064df930be7Sderaadt case ECOFF_MAGIC_ALPHA: 20654e8700e2Sericj error = osf1_exec_ecoff_hook(p, epp); 2066df930be7Sderaadt break; 2067df930be7Sderaadt #endif 2068df930be7Sderaadt 206950ce9ee0Sniklas case ECOFF_MAGIC_NATIVE_ALPHA: 2070a2f8ce8dSderaadt epp->ep_emul = &emul_native; 2071aed035abSart error = 0; 2072df930be7Sderaadt break; 2073df930be7Sderaadt 2074df930be7Sderaadt default: 2075aed035abSart error = ENOEXEC; 2076df930be7Sderaadt } 2077aed035abSart return (error); 2078df930be7Sderaadt } 2079df930be7Sderaadt #endif 2080e464495eSniklas 2081aed035abSart int 2082aed035abSart alpha_pa_access(pa) 2083aed035abSart u_long pa; 2084aed035abSart { 2085aed035abSart int i; 2086aed035abSart 2087aed035abSart for (i = 0; i < mem_cluster_cnt; i++) { 2088aed035abSart if (pa < mem_clusters[i].start) 2089aed035abSart continue; 2090aed035abSart if ((pa - mem_clusters[i].start) >= 2091aed035abSart (mem_clusters[i].size & ~PAGE_MASK)) 2092aed035abSart continue; 2093aed035abSart return (mem_clusters[i].size & PAGE_MASK); /* prot */ 2094aed035abSart } 2095aed035abSart 2096aed035abSart /* 2097aed035abSart * Address is not a memory address. If we're secure, disallow 2098aed035abSart * access. Otherwise, grant read/write. 2099aed035abSart */ 2100aed035abSart if (securelevel > 0) 2101aed035abSart return (VM_PROT_NONE); 2102aed035abSart else 2103aed035abSart return (VM_PROT_READ | VM_PROT_WRITE); 2104aed035abSart } 2105aed035abSart 2106e464495eSniklas /* XXX XXX BEGIN XXX XXX */ 2107aed035abSart paddr_t alpha_XXX_dmamap_or; /* XXX */ 2108e464495eSniklas /* XXX */ 2109aed035abSart paddr_t /* XXX */ 2110e464495eSniklas alpha_XXX_dmamap(v) /* XXX */ 2111aed035abSart vaddr_t v; /* XXX */ 2112e464495eSniklas { /* XXX */ 2113e464495eSniklas /* XXX */ 2114e464495eSniklas return (vtophys(v) | alpha_XXX_dmamap_or); /* XXX */ 2115e464495eSniklas } /* XXX */ 2116e464495eSniklas /* XXX XXX END XXX XXX */ 2117