diff options
author | wollman <wollman@FreeBSD.org> | 1996-07-08 19:44:39 +0000 |
---|---|---|
committer | wollman <wollman@FreeBSD.org> | 1996-07-08 19:44:39 +0000 |
commit | f94ea926ede24f1013ce045912c8dcf48b769000 (patch) | |
tree | 0dfe44280fd292aa46be972d33773c5b15406fba /sys | |
parent | be5d914031744be8405c2e10f0424475b22f1478 (diff) | |
download | FreeBSD-src-f94ea926ede24f1013ce045912c8dcf48b769000.zip FreeBSD-src-f94ea926ede24f1013ce045912c8dcf48b769000.tar.gz |
Fix something that's been bugging me for a long time: move the CPU
type identification code out of machdep.c and into a new file of its
own. Hopefully other grot can be moved out of machdep.c as well
(by other people) into more descriptively-named files.
Diffstat (limited to 'sys')
-rw-r--r-- | sys/amd64/amd64/identcpu.c | 277 | ||||
-rw-r--r-- | sys/amd64/amd64/machdep.c | 202 | ||||
-rw-r--r-- | sys/conf/files.i386 | 3 | ||||
-rw-r--r-- | sys/i386/conf/files.i386 | 3 | ||||
-rw-r--r-- | sys/i386/i386/identcpu.c | 277 | ||||
-rw-r--r-- | sys/i386/i386/machdep.c | 202 |
6 files changed, 572 insertions, 392 deletions
diff --git a/sys/amd64/amd64/identcpu.c b/sys/amd64/amd64/identcpu.c new file mode 100644 index 0000000..7d23b7d --- /dev/null +++ b/sys/amd64/amd64/identcpu.c @@ -0,0 +1,277 @@ +/*- + * Copyright (c) 1992 Terrence R. Lambert. + * Copyright (c) 1982, 1987, 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * William Jolitz. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * from: Id: machdep.c,v 1.193 1996/06/18 01:22:04 bde Exp + * $Id$ + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/sysproto.h> +#include <sys/kernel.h> +#include <sys/sysctl.h> +#include <sys/devconf.h> + +#include <machine/cpu.h> +#include <machine/reg.h> +#include <machine/psl.h> +#include <machine/clock.h> +#include <machine/specialreg.h> +#include <machine/sysarch.h> +#include <machine/devconf.h> +#include <machine/md_var.h> + +/* XXX - should be in header file */ +extern void i486_bzero __P((void *, size_t)); +extern void i586_bzero __P((void *, size_t)); +extern void i686_bzero __P((void *, size_t)); + +void identifycpu(void); /* XXX should be in different header file */ +void earlysetcpuclass(void); + +int cpu_class = CPUCLASS_386; /* least common denominator */ +char machine[] = "i386"; +SYSCTL_STRING(_hw, HW_MACHINE, machine, CTLFLAG_RD, machine, 0, ""); + +static char cpu_model[128]; +SYSCTL_STRING(_hw, HW_MODEL, model, CTLFLAG_RD, cpu_model, 0, ""); + +struct kern_devconf kdc_cpu0 = { + 0, 0, 0, /* filled in by dev_attach */ + "cpu", 0, { MDDT_CPU }, + 0, 0, 0, CPU_EXTERNALLEN, + 0, /* CPU has no parent */ + 0, /* no parentdata */ + DC_BUSY, /* the CPU is always busy */ + cpu_model, /* no sense in duplication */ + DC_CLS_CPU /* class */ +}; + +static struct cpu_nameclass i386_cpus[] = { + { "Intel 80286", CPUCLASS_286 }, /* CPU_286 */ + { "i386SX", CPUCLASS_386 }, /* CPU_386SX */ + { "i386DX", CPUCLASS_386 }, /* CPU_386 */ + { "i486SX", CPUCLASS_486 }, /* CPU_486SX */ + { "i486DX", CPUCLASS_486 }, /* CPU_486 */ + { "Pentium", CPUCLASS_586 }, /* CPU_586 */ + { "Cy486DLC", CPUCLASS_486 }, /* CPU_486DLC */ + { "Pentium Pro", CPUCLASS_686 }, /* CPU_686 */ +}; + +void +identifycpu(void) +{ + cpu_class = i386_cpus[cpu].cpu_class; + printf("CPU: "); + strncpy(cpu_model, i386_cpus[cpu].cpu_name, sizeof cpu_model); + +#if defined(I486_CPU) || defined(I586_CPU) || defined(I686_CPU) + if (!strcmp(cpu_vendor,"GenuineIntel")) { + if ((cpu_id & 0xf00) > 3) { + cpu_model[0] = '\0'; + + switch (cpu_id & 0x3000) { + case 0x1000: + strcpy(cpu_model, "Overdrive "); + break; + case 0x2000: + strcpy(cpu_model, "Dual "); + break; + } + + switch (cpu_id & 0xf00) { + case 0x400: + strcat(cpu_model, "i486 "); + break; + case 0x500: + strcat(cpu_model, "Pentium"); /* nb no space */ + break; + case 0x600: + strcat(cpu_model, "Pentium Pro"); + break; + default: + strcat(cpu_model, "unknown"); + break; + } + + switch (cpu_id & 0xff0) { + case 0x400: + strcat(cpu_model, "DX"); break; + case 0x410: + strcat(cpu_model, "DX"); break; + case 0x420: + strcat(cpu_model, "SX"); break; + case 0x430: + strcat(cpu_model, "DX2"); break; + case 0x440: + strcat(cpu_model, "SL"); break; + case 0x450: + strcat(cpu_model, "SX2"); break; + case 0x470: + strcat(cpu_model, "DX2 Write-Back Enhanced"); + break; + case 0x480: + strcat(cpu_model, "DX4"); break; + break; + } + } + } +#endif + printf("%s (", cpu_model); + switch(cpu_class) { + case CPUCLASS_286: + printf("286"); + break; +#if defined(I386_CPU) + case CPUCLASS_386: + printf("386"); + break; +#endif +#if defined(I486_CPU) + case CPUCLASS_486: + printf("486"); + bzero = i486_bzero; + break; +#endif +#if defined(I586_CPU) + case CPUCLASS_586: + printf("%d.%02d-MHz ", + ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) / 100, + ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) % 100); + printf("586"); + break; +#endif +#if defined(I686_CPU) + case CPUCLASS_686: + printf("%d.%02d-MHz ", + ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) / 100, + ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) % 100); + printf("686"); + break; +#endif + default: + printf("unknown"); /* will panic below... */ + } + printf("-class CPU)\n"); +#if defined(I486_CPU) || defined(I586_CPU) || defined(I686_CPU) + if(*cpu_vendor) + printf(" Origin = \"%s\"",cpu_vendor); + if(cpu_id) + printf(" Id = 0x%lx",cpu_id); + + if (!strcmp(cpu_vendor, "GenuineIntel")) { + printf(" Stepping=%ld", cpu_id & 0xf); + if (cpu_high > 0) { + /* + * Here we should probably set up flags indicating + * whether or not various features are available. + * The interesting ones are probably VME, PSE, PAE, + * and PGE. The code already assumes without bothering + * to check that all CPUs >= Pentium have a TSC and + * MSRs. + */ + printf("\n Features=0x%b", cpu_feature, + "\020" + "\001FPU" + "\002VME" + "\003DE" + "\004PSE" + "\005TSC" + "\006MSR" + "\007PAE" + "\010MCE" + "\011CX8" + "\012APIC" + "\013<b10>" + "\014<b11>" + "\015MTRR" + "\016PGE" + "\017MCA" + "\020CMOV" + ); + } + } + /* Avoid ugly blank lines: only print newline when we have to. */ + if (*cpu_vendor || cpu_id) + printf("\n"); +#endif +#ifdef I686_CPU + /* + * XXX - Do PPro CPUID level=2 stuff here? + */ +#endif + + /* + * Now that we have told the user what they have, + * let them know if that machine type isn't configured. + */ + switch (cpu_class) { + case CPUCLASS_286: /* a 286 should not make it this far, anyway */ +#if !defined(I386_CPU) && !defined(I486_CPU) && !defined(I586_CPU) && !defined(I686_CPU) +#error This kernel is not configured for one of the supported CPUs +#endif +#if !defined(I386_CPU) + case CPUCLASS_386: +#endif +#if !defined(I486_CPU) + case CPUCLASS_486: +#endif +#if !defined(I586_CPU) + case CPUCLASS_586: +#endif +#if !defined(I686_CPU) + case CPUCLASS_686: +#endif + panic("CPU class not configured"); + default: + break; + } + dev_attach(&kdc_cpu0); +} + +/* + * This routine is called specifically to set up cpu_class before + * startrtclock() uses it. Probably this should be rearranged so that + * startrtclock() doesn't need to run until after identifycpu() has been + * called. Another alternative formulation would be for this routine + * to do all the identification work, and make identifycpu() into a + * printing-only routine. + */ +void +earlysetcpuclass(void) +{ + cpu_class = i386_cpus[cpu].cpu_class; +} diff --git a/sys/amd64/amd64/machdep.c b/sys/amd64/amd64/machdep.c index 4a053ff..999ba0c 100644 --- a/sys/amd64/amd64/machdep.c +++ b/sys/amd64/amd64/machdep.c @@ -35,7 +35,7 @@ * SUCH DAMAGE. * * from: @(#)machdep.c 7.4 (Berkeley) 6/3/91 - * $Id: machdep.c,v 1.192 1996/06/08 11:03:01 bde Exp $ + * $Id: machdep.c,v 1.193 1996/06/18 01:22:04 bde Exp $ */ #include "npx.h" @@ -123,31 +123,12 @@ extern int ptrace_single_step __P((struct proc *p)); extern int ptrace_write_u __P((struct proc *p, vm_offset_t off, int data)); extern void dblfault_handler __P((void)); -extern void i486_bzero __P((void *, size_t)); -extern void i586_bzero __P((void *, size_t)); -extern void i686_bzero __P((void *, size_t)); +extern void identifycpu(void); /* XXX header file */ +extern void earlysetcpuclass(void); /* same header file */ static void cpu_startup __P((void *)); SYSINIT(cpu, SI_SUB_CPU, SI_ORDER_FIRST, cpu_startup, NULL) -static void identifycpu(void); - -char machine[] = "i386"; -SYSCTL_STRING(_hw, HW_MACHINE, machine, CTLFLAG_RD, machine, 0, ""); - -static char cpu_model[128]; -SYSCTL_STRING(_hw, HW_MODEL, model, CTLFLAG_RD, cpu_model, 0, ""); - -struct kern_devconf kdc_cpu0 = { - 0, 0, 0, /* filled in by dev_attach */ - "cpu", 0, { MDDT_CPU }, - 0, 0, 0, CPU_EXTERNALLEN, - 0, /* CPU has no parent */ - 0, /* no parentdata */ - DC_BUSY, /* the CPU is always busy */ - cpu_model, /* no sense in duplication */ - DC_CLS_CPU /* class */ -}; #ifndef PANIC_REBOOT_WAIT_TIME #define PANIC_REBOOT_WAIT_TIME 15 /* default to 15 seconds */ @@ -203,8 +184,6 @@ vm_offset_t phys_avail[10]; /* must be 2 less so 0 0 can signal end of chunks */ #define PHYS_AVAIL_ARRAY_END ((sizeof(phys_avail) / sizeof(vm_offset_t)) - 2) -int cpu_class = CPUCLASS_386; /* smallest common denominator */ - static void dumpsys __P((void)); static void setup_netisrs __P((struct linker_set *)); /* XXX declare elsewhere */ @@ -244,9 +223,12 @@ cpu_startup(dummy) * Good {morning,afternoon,evening,night}. */ printf(version); - cpu_class = i386_cpus[cpu].cpu_class; + earlysetcpuclass(); startrtclock(); identifycpu(); +#ifdef PERFMON + perfmon_init(); +#endif printf("real memory = %d (%dK bytes)\n", ptoa(Maxmem), ptoa(Maxmem) / 1024); /* * Display any holes after the first chunk of extended memory. @@ -485,176 +467,6 @@ setup_netisrs(ls) } } -static struct cpu_nameclass i386_cpus[] = { - { "Intel 80286", CPUCLASS_286 }, /* CPU_286 */ - { "i386SX", CPUCLASS_386 }, /* CPU_386SX */ - { "i386DX", CPUCLASS_386 }, /* CPU_386 */ - { "i486SX", CPUCLASS_486 }, /* CPU_486SX */ - { "i486DX", CPUCLASS_486 }, /* CPU_486 */ - { "Pentium", CPUCLASS_586 }, /* CPU_586 */ - { "Cy486DLC", CPUCLASS_486 }, /* CPU_486DLC */ - { "Pentium Pro", CPUCLASS_686 }, /* CPU_686 */ -}; - -static void -identifycpu() -{ - printf("CPU: "); - strncpy(cpu_model, i386_cpus[cpu].cpu_name, sizeof cpu_model); - -#if defined(I486_CPU) || defined(I586_CPU) || defined(I686_CPU) - if (!strcmp(cpu_vendor,"GenuineIntel")) { - if ((cpu_id & 0xf00) > 3) { - cpu_model[0] = '\0'; - - switch (cpu_id & 0x3000) { - case 0x1000: - strcpy(cpu_model, "Overdrive "); - break; - case 0x2000: - strcpy(cpu_model, "Dual "); - break; - } - - switch (cpu_id & 0xf00) { - case 0x400: - strcat(cpu_model, "i486 "); - break; - case 0x500: - strcat(cpu_model, "Pentium"); /* nb no space */ - break; - case 0x600: - strcat(cpu_model, "Pentium Pro"); - break; - default: - strcat(cpu_model, "unknown"); - break; - } - - switch (cpu_id & 0xff0) { - case 0x400: - strcat(cpu_model, "DX"); break; - case 0x410: - strcat(cpu_model, "DX"); break; - case 0x420: - strcat(cpu_model, "SX"); break; - case 0x430: - strcat(cpu_model, "DX2"); break; - case 0x440: - strcat(cpu_model, "SL"); break; - case 0x450: - strcat(cpu_model, "SX2"); break; - case 0x470: - strcat(cpu_model, "DX2 Write-Back Enhanced"); - break; - case 0x480: - strcat(cpu_model, "DX4"); break; - break; - } - } - } -#endif - printf("%s (", cpu_model); - switch(cpu_class) { - case CPUCLASS_286: - printf("286"); - break; -#if defined(I386_CPU) - case CPUCLASS_386: - printf("386"); - break; -#endif -#if defined(I486_CPU) - case CPUCLASS_486: - printf("486"); - bzero = i486_bzero; - break; -#endif -#if defined(I586_CPU) - case CPUCLASS_586: - printf("%d.%02d-MHz ", - ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) / 100, - ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) % 100); - printf("586"); - break; -#endif -#if defined(I686_CPU) - case CPUCLASS_686: - printf("%d.%02d-MHz ", - ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) / 100, - ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) % 100); - printf("686"); - break; -#endif - default: - printf("unknown"); /* will panic below... */ - } - printf("-class CPU)\n"); -#if defined(I486_CPU) || defined(I586_CPU) || defined(I686_CPU) - if(*cpu_vendor) - printf(" Origin = \"%s\"",cpu_vendor); - if(cpu_id) - printf(" Id = 0x%lx",cpu_id); - - if (!strcmp(cpu_vendor, "GenuineIntel")) { - printf(" Stepping=%ld", cpu_id & 0xf); - if (cpu_high > 0) { - printf("\n Features=0x%b", cpu_feature, - "\020" - "\001FPU" - "\002VME" - "\003DE" - "\004PSE" - "\005TSC" - "\006MSR" - "\007PAE" - "\010MCE" - "\011CX8" - "\012APIC" - "\013<b10>" - "\014<b11>" - "\015MTRR" - "\016PGE" - "\017MCA" - "\020CMOV" - ); - } - } - /* Avoid ugly blank lines: only print newline when we have to. */ - if (*cpu_vendor || cpu_id) - printf("\n"); -#endif - /* - * Now that we have told the user what they have, - * let them know if that machine type isn't configured. - */ - switch (cpu_class) { - case CPUCLASS_286: /* a 286 should not make it this far, anyway */ -#if !defined(I386_CPU) && !defined(I486_CPU) && !defined(I586_CPU) && !defined(I686_CPU) -#error This kernel is not configured for one of the supported CPUs -#endif -#if !defined(I386_CPU) - case CPUCLASS_386: -#endif -#if !defined(I486_CPU) - case CPUCLASS_486: -#endif -#if !defined(I586_CPU) - case CPUCLASS_586: -#endif -#if !defined(I686_CPU) - case CPUCLASS_686: -#endif - panic("CPU class not configured"); - default: - break; - } -#ifdef PERFMON - perfmon_init(); -#endif - dev_attach(&kdc_cpu0); -} - /* * Send an interrupt to process. * diff --git a/sys/conf/files.i386 b/sys/conf/files.i386 index f2ef3d3..9b21743 100644 --- a/sys/conf/files.i386 +++ b/sys/conf/files.i386 @@ -1,7 +1,7 @@ # This file tells config what files go into building a kernel, # files marked standard are always included. # -# $Id: files.i386,v 1.136 1996/06/07 22:26:59 nate Exp $ +# $Id: files.i386,v 1.137 1996/07/05 18:49:01 jhay Exp $ # aic7xxx_asm optional ahc device-driver \ dependency "$S/dev/aic7xxx/aic7xxx_asm.c" \ @@ -41,6 +41,7 @@ i386/i386/db_disasm.c optional ddb i386/i386/db_interface.c optional ddb i386/i386/db_trace.c optional ddb i386/i386/exception.s standard +i386/i386/identcpu.c standard i386/i386/in_cksum.c optional inet # locore.s needs to be handled in Makefile to put it first. Otherwise it's # now normal. diff --git a/sys/i386/conf/files.i386 b/sys/i386/conf/files.i386 index f2ef3d3..9b21743 100644 --- a/sys/i386/conf/files.i386 +++ b/sys/i386/conf/files.i386 @@ -1,7 +1,7 @@ # This file tells config what files go into building a kernel, # files marked standard are always included. # -# $Id: files.i386,v 1.136 1996/06/07 22:26:59 nate Exp $ +# $Id: files.i386,v 1.137 1996/07/05 18:49:01 jhay Exp $ # aic7xxx_asm optional ahc device-driver \ dependency "$S/dev/aic7xxx/aic7xxx_asm.c" \ @@ -41,6 +41,7 @@ i386/i386/db_disasm.c optional ddb i386/i386/db_interface.c optional ddb i386/i386/db_trace.c optional ddb i386/i386/exception.s standard +i386/i386/identcpu.c standard i386/i386/in_cksum.c optional inet # locore.s needs to be handled in Makefile to put it first. Otherwise it's # now normal. diff --git a/sys/i386/i386/identcpu.c b/sys/i386/i386/identcpu.c new file mode 100644 index 0000000..7d23b7d --- /dev/null +++ b/sys/i386/i386/identcpu.c @@ -0,0 +1,277 @@ +/*- + * Copyright (c) 1992 Terrence R. Lambert. + * Copyright (c) 1982, 1987, 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * William Jolitz. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * from: Id: machdep.c,v 1.193 1996/06/18 01:22:04 bde Exp + * $Id$ + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/sysproto.h> +#include <sys/kernel.h> +#include <sys/sysctl.h> +#include <sys/devconf.h> + +#include <machine/cpu.h> +#include <machine/reg.h> +#include <machine/psl.h> +#include <machine/clock.h> +#include <machine/specialreg.h> +#include <machine/sysarch.h> +#include <machine/devconf.h> +#include <machine/md_var.h> + +/* XXX - should be in header file */ +extern void i486_bzero __P((void *, size_t)); +extern void i586_bzero __P((void *, size_t)); +extern void i686_bzero __P((void *, size_t)); + +void identifycpu(void); /* XXX should be in different header file */ +void earlysetcpuclass(void); + +int cpu_class = CPUCLASS_386; /* least common denominator */ +char machine[] = "i386"; +SYSCTL_STRING(_hw, HW_MACHINE, machine, CTLFLAG_RD, machine, 0, ""); + +static char cpu_model[128]; +SYSCTL_STRING(_hw, HW_MODEL, model, CTLFLAG_RD, cpu_model, 0, ""); + +struct kern_devconf kdc_cpu0 = { + 0, 0, 0, /* filled in by dev_attach */ + "cpu", 0, { MDDT_CPU }, + 0, 0, 0, CPU_EXTERNALLEN, + 0, /* CPU has no parent */ + 0, /* no parentdata */ + DC_BUSY, /* the CPU is always busy */ + cpu_model, /* no sense in duplication */ + DC_CLS_CPU /* class */ +}; + +static struct cpu_nameclass i386_cpus[] = { + { "Intel 80286", CPUCLASS_286 }, /* CPU_286 */ + { "i386SX", CPUCLASS_386 }, /* CPU_386SX */ + { "i386DX", CPUCLASS_386 }, /* CPU_386 */ + { "i486SX", CPUCLASS_486 }, /* CPU_486SX */ + { "i486DX", CPUCLASS_486 }, /* CPU_486 */ + { "Pentium", CPUCLASS_586 }, /* CPU_586 */ + { "Cy486DLC", CPUCLASS_486 }, /* CPU_486DLC */ + { "Pentium Pro", CPUCLASS_686 }, /* CPU_686 */ +}; + +void +identifycpu(void) +{ + cpu_class = i386_cpus[cpu].cpu_class; + printf("CPU: "); + strncpy(cpu_model, i386_cpus[cpu].cpu_name, sizeof cpu_model); + +#if defined(I486_CPU) || defined(I586_CPU) || defined(I686_CPU) + if (!strcmp(cpu_vendor,"GenuineIntel")) { + if ((cpu_id & 0xf00) > 3) { + cpu_model[0] = '\0'; + + switch (cpu_id & 0x3000) { + case 0x1000: + strcpy(cpu_model, "Overdrive "); + break; + case 0x2000: + strcpy(cpu_model, "Dual "); + break; + } + + switch (cpu_id & 0xf00) { + case 0x400: + strcat(cpu_model, "i486 "); + break; + case 0x500: + strcat(cpu_model, "Pentium"); /* nb no space */ + break; + case 0x600: + strcat(cpu_model, "Pentium Pro"); + break; + default: + strcat(cpu_model, "unknown"); + break; + } + + switch (cpu_id & 0xff0) { + case 0x400: + strcat(cpu_model, "DX"); break; + case 0x410: + strcat(cpu_model, "DX"); break; + case 0x420: + strcat(cpu_model, "SX"); break; + case 0x430: + strcat(cpu_model, "DX2"); break; + case 0x440: + strcat(cpu_model, "SL"); break; + case 0x450: + strcat(cpu_model, "SX2"); break; + case 0x470: + strcat(cpu_model, "DX2 Write-Back Enhanced"); + break; + case 0x480: + strcat(cpu_model, "DX4"); break; + break; + } + } + } +#endif + printf("%s (", cpu_model); + switch(cpu_class) { + case CPUCLASS_286: + printf("286"); + break; +#if defined(I386_CPU) + case CPUCLASS_386: + printf("386"); + break; +#endif +#if defined(I486_CPU) + case CPUCLASS_486: + printf("486"); + bzero = i486_bzero; + break; +#endif +#if defined(I586_CPU) + case CPUCLASS_586: + printf("%d.%02d-MHz ", + ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) / 100, + ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) % 100); + printf("586"); + break; +#endif +#if defined(I686_CPU) + case CPUCLASS_686: + printf("%d.%02d-MHz ", + ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) / 100, + ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) % 100); + printf("686"); + break; +#endif + default: + printf("unknown"); /* will panic below... */ + } + printf("-class CPU)\n"); +#if defined(I486_CPU) || defined(I586_CPU) || defined(I686_CPU) + if(*cpu_vendor) + printf(" Origin = \"%s\"",cpu_vendor); + if(cpu_id) + printf(" Id = 0x%lx",cpu_id); + + if (!strcmp(cpu_vendor, "GenuineIntel")) { + printf(" Stepping=%ld", cpu_id & 0xf); + if (cpu_high > 0) { + /* + * Here we should probably set up flags indicating + * whether or not various features are available. + * The interesting ones are probably VME, PSE, PAE, + * and PGE. The code already assumes without bothering + * to check that all CPUs >= Pentium have a TSC and + * MSRs. + */ + printf("\n Features=0x%b", cpu_feature, + "\020" + "\001FPU" + "\002VME" + "\003DE" + "\004PSE" + "\005TSC" + "\006MSR" + "\007PAE" + "\010MCE" + "\011CX8" + "\012APIC" + "\013<b10>" + "\014<b11>" + "\015MTRR" + "\016PGE" + "\017MCA" + "\020CMOV" + ); + } + } + /* Avoid ugly blank lines: only print newline when we have to. */ + if (*cpu_vendor || cpu_id) + printf("\n"); +#endif +#ifdef I686_CPU + /* + * XXX - Do PPro CPUID level=2 stuff here? + */ +#endif + + /* + * Now that we have told the user what they have, + * let them know if that machine type isn't configured. + */ + switch (cpu_class) { + case CPUCLASS_286: /* a 286 should not make it this far, anyway */ +#if !defined(I386_CPU) && !defined(I486_CPU) && !defined(I586_CPU) && !defined(I686_CPU) +#error This kernel is not configured for one of the supported CPUs +#endif +#if !defined(I386_CPU) + case CPUCLASS_386: +#endif +#if !defined(I486_CPU) + case CPUCLASS_486: +#endif +#if !defined(I586_CPU) + case CPUCLASS_586: +#endif +#if !defined(I686_CPU) + case CPUCLASS_686: +#endif + panic("CPU class not configured"); + default: + break; + } + dev_attach(&kdc_cpu0); +} + +/* + * This routine is called specifically to set up cpu_class before + * startrtclock() uses it. Probably this should be rearranged so that + * startrtclock() doesn't need to run until after identifycpu() has been + * called. Another alternative formulation would be for this routine + * to do all the identification work, and make identifycpu() into a + * printing-only routine. + */ +void +earlysetcpuclass(void) +{ + cpu_class = i386_cpus[cpu].cpu_class; +} diff --git a/sys/i386/i386/machdep.c b/sys/i386/i386/machdep.c index 4a053ff..999ba0c 100644 --- a/sys/i386/i386/machdep.c +++ b/sys/i386/i386/machdep.c @@ -35,7 +35,7 @@ * SUCH DAMAGE. * * from: @(#)machdep.c 7.4 (Berkeley) 6/3/91 - * $Id: machdep.c,v 1.192 1996/06/08 11:03:01 bde Exp $ + * $Id: machdep.c,v 1.193 1996/06/18 01:22:04 bde Exp $ */ #include "npx.h" @@ -123,31 +123,12 @@ extern int ptrace_single_step __P((struct proc *p)); extern int ptrace_write_u __P((struct proc *p, vm_offset_t off, int data)); extern void dblfault_handler __P((void)); -extern void i486_bzero __P((void *, size_t)); -extern void i586_bzero __P((void *, size_t)); -extern void i686_bzero __P((void *, size_t)); +extern void identifycpu(void); /* XXX header file */ +extern void earlysetcpuclass(void); /* same header file */ static void cpu_startup __P((void *)); SYSINIT(cpu, SI_SUB_CPU, SI_ORDER_FIRST, cpu_startup, NULL) -static void identifycpu(void); - -char machine[] = "i386"; -SYSCTL_STRING(_hw, HW_MACHINE, machine, CTLFLAG_RD, machine, 0, ""); - -static char cpu_model[128]; -SYSCTL_STRING(_hw, HW_MODEL, model, CTLFLAG_RD, cpu_model, 0, ""); - -struct kern_devconf kdc_cpu0 = { - 0, 0, 0, /* filled in by dev_attach */ - "cpu", 0, { MDDT_CPU }, - 0, 0, 0, CPU_EXTERNALLEN, - 0, /* CPU has no parent */ - 0, /* no parentdata */ - DC_BUSY, /* the CPU is always busy */ - cpu_model, /* no sense in duplication */ - DC_CLS_CPU /* class */ -}; #ifndef PANIC_REBOOT_WAIT_TIME #define PANIC_REBOOT_WAIT_TIME 15 /* default to 15 seconds */ @@ -203,8 +184,6 @@ vm_offset_t phys_avail[10]; /* must be 2 less so 0 0 can signal end of chunks */ #define PHYS_AVAIL_ARRAY_END ((sizeof(phys_avail) / sizeof(vm_offset_t)) - 2) -int cpu_class = CPUCLASS_386; /* smallest common denominator */ - static void dumpsys __P((void)); static void setup_netisrs __P((struct linker_set *)); /* XXX declare elsewhere */ @@ -244,9 +223,12 @@ cpu_startup(dummy) * Good {morning,afternoon,evening,night}. */ printf(version); - cpu_class = i386_cpus[cpu].cpu_class; + earlysetcpuclass(); startrtclock(); identifycpu(); +#ifdef PERFMON + perfmon_init(); +#endif printf("real memory = %d (%dK bytes)\n", ptoa(Maxmem), ptoa(Maxmem) / 1024); /* * Display any holes after the first chunk of extended memory. @@ -485,176 +467,6 @@ setup_netisrs(ls) } } -static struct cpu_nameclass i386_cpus[] = { - { "Intel 80286", CPUCLASS_286 }, /* CPU_286 */ - { "i386SX", CPUCLASS_386 }, /* CPU_386SX */ - { "i386DX", CPUCLASS_386 }, /* CPU_386 */ - { "i486SX", CPUCLASS_486 }, /* CPU_486SX */ - { "i486DX", CPUCLASS_486 }, /* CPU_486 */ - { "Pentium", CPUCLASS_586 }, /* CPU_586 */ - { "Cy486DLC", CPUCLASS_486 }, /* CPU_486DLC */ - { "Pentium Pro", CPUCLASS_686 }, /* CPU_686 */ -}; - -static void -identifycpu() -{ - printf("CPU: "); - strncpy(cpu_model, i386_cpus[cpu].cpu_name, sizeof cpu_model); - -#if defined(I486_CPU) || defined(I586_CPU) || defined(I686_CPU) - if (!strcmp(cpu_vendor,"GenuineIntel")) { - if ((cpu_id & 0xf00) > 3) { - cpu_model[0] = '\0'; - - switch (cpu_id & 0x3000) { - case 0x1000: - strcpy(cpu_model, "Overdrive "); - break; - case 0x2000: - strcpy(cpu_model, "Dual "); - break; - } - - switch (cpu_id & 0xf00) { - case 0x400: - strcat(cpu_model, "i486 "); - break; - case 0x500: - strcat(cpu_model, "Pentium"); /* nb no space */ - break; - case 0x600: - strcat(cpu_model, "Pentium Pro"); - break; - default: - strcat(cpu_model, "unknown"); - break; - } - - switch (cpu_id & 0xff0) { - case 0x400: - strcat(cpu_model, "DX"); break; - case 0x410: - strcat(cpu_model, "DX"); break; - case 0x420: - strcat(cpu_model, "SX"); break; - case 0x430: - strcat(cpu_model, "DX2"); break; - case 0x440: - strcat(cpu_model, "SL"); break; - case 0x450: - strcat(cpu_model, "SX2"); break; - case 0x470: - strcat(cpu_model, "DX2 Write-Back Enhanced"); - break; - case 0x480: - strcat(cpu_model, "DX4"); break; - break; - } - } - } -#endif - printf("%s (", cpu_model); - switch(cpu_class) { - case CPUCLASS_286: - printf("286"); - break; -#if defined(I386_CPU) - case CPUCLASS_386: - printf("386"); - break; -#endif -#if defined(I486_CPU) - case CPUCLASS_486: - printf("486"); - bzero = i486_bzero; - break; -#endif -#if defined(I586_CPU) - case CPUCLASS_586: - printf("%d.%02d-MHz ", - ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) / 100, - ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) % 100); - printf("586"); - break; -#endif -#if defined(I686_CPU) - case CPUCLASS_686: - printf("%d.%02d-MHz ", - ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) / 100, - ((100 * i586_ctr_rate) >> I586_CTR_RATE_SHIFT) % 100); - printf("686"); - break; -#endif - default: - printf("unknown"); /* will panic below... */ - } - printf("-class CPU)\n"); -#if defined(I486_CPU) || defined(I586_CPU) || defined(I686_CPU) - if(*cpu_vendor) - printf(" Origin = \"%s\"",cpu_vendor); - if(cpu_id) - printf(" Id = 0x%lx",cpu_id); - - if (!strcmp(cpu_vendor, "GenuineIntel")) { - printf(" Stepping=%ld", cpu_id & 0xf); - if (cpu_high > 0) { - printf("\n Features=0x%b", cpu_feature, - "\020" - "\001FPU" - "\002VME" - "\003DE" - "\004PSE" - "\005TSC" - "\006MSR" - "\007PAE" - "\010MCE" - "\011CX8" - "\012APIC" - "\013<b10>" - "\014<b11>" - "\015MTRR" - "\016PGE" - "\017MCA" - "\020CMOV" - ); - } - } - /* Avoid ugly blank lines: only print newline when we have to. */ - if (*cpu_vendor || cpu_id) - printf("\n"); -#endif - /* - * Now that we have told the user what they have, - * let them know if that machine type isn't configured. - */ - switch (cpu_class) { - case CPUCLASS_286: /* a 286 should not make it this far, anyway */ -#if !defined(I386_CPU) && !defined(I486_CPU) && !defined(I586_CPU) && !defined(I686_CPU) -#error This kernel is not configured for one of the supported CPUs -#endif -#if !defined(I386_CPU) - case CPUCLASS_386: -#endif -#if !defined(I486_CPU) - case CPUCLASS_486: -#endif -#if !defined(I586_CPU) - case CPUCLASS_586: -#endif -#if !defined(I686_CPU) - case CPUCLASS_686: -#endif - panic("CPU class not configured"); - default: - break; - } -#ifdef PERFMON - perfmon_init(); -#endif - dev_attach(&kdc_cpu0); -} - /* * Send an interrupt to process. * |