Annotation of src/sys/arch/i386/include/cpu.h, Revision 1.80.2.1
1.80.2.1! gehenna 1: /* $NetBSD: cpu.h,v 1.81 2002/07/09 22:28:30 jdolecek Exp $ */
1.24 cgd 2:
1.1 cgd 3: /*-
4: * Copyright (c) 1990 The Regents of the University of California.
5: * All rights reserved.
6: *
7: * This code is derived from software contributed to Berkeley by
8: * William Jolitz.
9: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
18: * 3. All advertising materials mentioning features or use of this software
19: * must display the following acknowledgement:
20: * This product includes software developed by the University of
21: * California, Berkeley and its contributors.
22: * 4. Neither the name of the University nor the names of its contributors
23: * may be used to endorse or promote products derived from this software
24: * without specific prior written permission.
25: *
26: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36: * SUCH DAMAGE.
37: *
1.24 cgd 38: * @(#)cpu.h 5.4 (Berkeley) 5/9/91
1.1 cgd 39: */
40:
1.14 mycroft 41: #ifndef _I386_CPU_H_
42: #define _I386_CPU_H_
43:
1.71 mrg 44: #if defined(_KERNEL_OPT)
1.63 thorpej 45: #include "opt_multiprocessor.h"
46: #include "opt_lockdebug.h"
47: #endif
48:
1.1 cgd 49: /*
50: * Definitions unique to i386 cpu support.
51: */
1.12 mycroft 52: #include <machine/psl.h>
53: #include <machine/frame.h>
54: #include <machine/segments.h>
1.63 thorpej 55:
56: #include <sys/sched.h>
1.70 thorpej 57:
58: struct i386_cache_info {
59: int cai_index;
60: u_int32_t cai_desc;
61: u_int cai_totalsize;
62: u_int cai_associativity;
63: u_int cai_linesize;
64: };
65:
66: #define CAI_ITLB 0 /* Instruction TLB (4K pages) */
67: #define CAI_ITLB2 1 /* Instruction TLB (2/4M pages) */
68: #define CAI_DTLB 2 /* Data TLB (4K pages) */
69: #define CAI_DTLB2 3 /* Data TLB (2/4M pages) */
70: #define CAI_ICACHE 4 /* Instruction cache */
71: #define CAI_DCACHE 5 /* Data cache */
72: #define CAI_L2CACHE 6 /* Level 2 cache */
73:
74: #define CAI_COUNT 7
75:
1.63 thorpej 76: struct cpu_info {
77: struct schedstate_percpu ci_schedstate; /* scheduler state */
78: u_long ci_spin_locks; /* # of spin locks held */
79: u_long ci_simple_locks; /* # of simple locks held */
1.69 thorpej 80:
1.73 thorpej 81: u_int ci_cflush_lsize; /* CFLUSH insn line size */
1.70 thorpej 82: struct i386_cache_info ci_cinfo[CAI_COUNT];
1.77 christos 83: void (*ci_info) __P((int));
1.63 thorpej 84: };
85:
86: #ifdef _KERNEL
87: extern struct cpu_info cpu_info_store;
88:
89: #define curcpu() (&cpu_info_store)
90: #endif
1.1 cgd 91:
92: /*
93: * definitions of cpu-dependent requirements
94: * referenced in generic code
95: */
1.29 cgd 96: #define cpu_swapin(p) /* nothing */
1.55 thorpej 97: #define cpu_number() 0
1.1 cgd 98:
99: /*
1.18 mycroft 100: * Arguments to hardclock, softclock and statclock
1.1 cgd 101: * encapsulate the previous machine state in an opaque
102: * clockframe; for now, use generic intrframe.
1.12 mycroft 103: *
1.79 mycroft 104: * Note: Since spllowersoftclock() does not actually unmask the currently
105: * running (hardclock) interrupt, CLKF_BASEPRI() *must* always be 0; otherwise
106: * we could stall hardclock ticks if another interrupt takes too long.
1.1 cgd 107: */
1.17 cgd 108: #define clockframe intrframe
1.1 cgd 109:
1.30 mycroft 110: #define CLKF_USERMODE(frame) USERMODE((frame)->if_cs, (frame)->if_eflags)
1.79 mycroft 111: #define CLKF_BASEPRI(frame) (0)
1.17 cgd 112: #define CLKF_PC(frame) ((frame)->if_eip)
1.64 mycroft 113: #define CLKF_INTR(frame) ((frame)->if_ppl & (1 << IPL_TAGINTR))
1.67 mycroft 114:
115: /*
116: * This is used during profiling to integrate system time. It can safely
117: * assume that the process is resident.
118: */
119: #define PROC_PC(p) ((p)->p_md.md_regs->tf_eip)
1.12 mycroft 120:
121: /*
1.1 cgd 122: * Preempt the current process if in interrupt from user mode,
123: * or after the current trap/syscall if in system mode.
124: */
1.80 matt 125: extern int want_resched; /* resched() was called */
1.65 thorpej 126: #define need_resched(ci) (want_resched = 1, setsoftast())
1.1 cgd 127:
128: /*
1.12 mycroft 129: * Give a profiling tick to the current process when the user profiling
130: * buffer pages are invalid. On the i386, request an ast to send us
131: * through trap(), marking the proc as needing a profiling tick.
1.1 cgd 132: */
1.16 cgd 133: #define need_proftick(p) ((p)->p_flag |= P_OWEUPC, setsoftast())
1.1 cgd 134:
135: /*
136: * Notify the current process (p) that it has a signal pending,
137: * process as soon as possible.
138: */
1.26 mycroft 139: #define signotify(p) setsoftast()
140:
141: /*
142: * We need a machine-independent name for this.
143: */
144: #define DELAY(x) delay(x)
1.1 cgd 145:
146: /*
1.5 cgd 147: * pull in #defines for kinds of processors
1.1 cgd 148: */
1.15 mycroft 149: #include <machine/cputypes.h>
1.2 cgd 150:
1.38 fvdl 151: struct cpu_nocpuid_nameclass {
152: int cpu_vendor;
153: const char *cpu_vendorname;
154: const char *cpu_name;
155: int cpu_class;
1.41 bouyer 156: void (*cpu_setup) __P((void));
1.69 thorpej 157: void (*cpu_cacheinfo) __P((struct cpu_info *));
1.77 christos 158: void (*cpu_info) __P((int));
1.38 fvdl 159: };
160:
161:
162: struct cpu_cpuid_nameclass {
163: const char *cpu_id;
164: int cpu_vendor;
165: const char *cpu_vendorname;
166: struct cpu_cpuid_family {
167: int cpu_class;
168: const char *cpu_models[CPU_MAXMODEL+2];
1.41 bouyer 169: void (*cpu_setup) __P((void));
1.69 thorpej 170: void (*cpu_cacheinfo) __P((struct cpu_info *));
1.77 christos 171: void (*cpu_info) __P((int));
1.38 fvdl 172: } cpu_family[CPU_MAXFAMILY - CPU_MINFAMILY + 1];
1.6 cgd 173: };
174:
1.25 jtc 175: #ifdef _KERNEL
1.62 thorpej 176: extern int biosbasemem;
177: extern int biosextmem;
1.3 cgd 178: extern int cpu;
1.8 cgd 179: extern int cpu_class;
1.38 fvdl 180: extern int cpu_feature;
1.60 thorpej 181: extern int cpu_id;
182: extern char cpu_vendor[];
1.38 fvdl 183: extern int cpuid_level;
1.66 jdolecek 184: extern const struct cpu_nocpuid_nameclass i386_nocpuid_cpus[];
185: extern const struct cpu_cpuid_nameclass i386_cpuid_cpus[];
1.74 thorpej 186:
1.75 thorpej 187: extern int i386_use_fxsave;
188: extern int i386_has_sse;
189: extern int i386_has_sse2;
1.34 christos 190:
191: /* machdep.c */
192: void delay __P((int));
193: void dumpconf __P((void));
194: void cpu_reset __P((void));
1.53 thorpej 195: void i386_proc0_tss_ldt_init __P((void));
1.46 thorpej 196: void i386_bufinit __P((void));
1.34 christos 197:
198: /* locore.s */
199: struct region_descriptor;
200: void lgdt __P((struct region_descriptor *));
1.35 christos 201: void fillw __P((short, void *, size_t));
1.34 christos 202:
203: struct pcb;
204: void savectx __P((struct pcb *));
205: void switch_exit __P((struct proc *));
206: void proc_trampoline __P((void));
207:
208: /* clock.c */
1.57 enami 209: void initrtclock __P((void));
1.34 christos 210: void startrtclock __P((void));
211:
212: /* npx.c */
213: void npxdrop __P((void));
214: void npxsave __P((void));
1.36 christos 215:
216: /* vm_machdep.c */
217: int kvtop __P((caddr_t));
1.34 christos 218:
1.43 thorpej 219: #if !defined(_LKM)
220: #include "opt_math_emulate.h"
221: #endif
1.34 christos 222: #ifdef MATH_EMULATE
223: /* math_emulate.c */
224: int math_emulate __P((struct trapframe *));
1.3 cgd 225: #endif
1.34 christos 226:
1.44 thorpej 227: #if !defined(_LKM)
228: #include "opt_user_ldt.h"
229: #endif
1.34 christos 230: #ifdef USER_LDT
231: /* sys_machdep.h */
1.68 nathanw 232: int i386_get_ldt __P((struct proc *, void *, register_t *));
233: int i386_set_ldt __P((struct proc *, void *, register_t *));
1.34 christos 234: #endif
235:
236: /* isa_machdep.c */
237: void isa_defaultirq __P((void));
238: int isa_nmi __P((void));
239:
1.42 thorpej 240: #if !defined(_LKM)
241: #include "opt_vm86.h"
242: #endif
1.34 christos 243: #ifdef VM86
244: /* vm86.c */
245: void vm86_gpfault __P((struct proc *, int));
246: #endif /* VM86 */
1.58 drochner 247:
248: /* consinit.c */
249: void kgdb_port_init __P((void));
1.59 drochner 250:
251: /* bus_machdep.c */
252: void i386_bus_space_init __P((void));
253: void i386_bus_space_mallocok __P((void));
1.34 christos 254:
255: #endif /* _KERNEL */
1.19 cgd 256:
257: /*
258: * CTL_MACHDEP definitions.
259: */
260: #define CPU_CONSDEV 1 /* dev_t: console terminal device */
1.37 fvdl 261: #define CPU_BIOSBASEMEM 2 /* int: bios-reported base mem (K) */
262: #define CPU_BIOSEXTMEM 3 /* int: bios-reported ext. mem (K) */
263: #define CPU_NKPDE 4 /* int: number of kernel PDEs */
1.40 drochner 264: #define CPU_BOOTED_KERNEL 5 /* string: booted kernel name */
1.78 christos 265: #define CPU_DISKINFO 6 /* struct disklist *:
266: * disk geometry information */
267: #define CPU_FPU_PRESENT 7 /* int: FPU is present */
268: #define CPU_OSFXSR 8 /* int: OS uses FXSAVE/FXRSTOR */
269: #define CPU_SSE 9 /* int: OS/CPU supports SSE */
270: #define CPU_SSE2 10 /* int: OS/CPU supports SSE2 */
271: #define CPU_TMLR_MODE 11 /* int: longrun mode
272: * 0: minimum frequency
273: * 1: economy
274: * 2: performance
275: * 3: maximum frequency
276: */
277: #define CPU_TMLR_FREQUENCY 12 /* int: current frequency */
278: #define CPU_TMLR_VOLTAGE 13 /* int: curret voltage */
279: #define CPU_TMLR_PERCENTAGE 14 /* int: current clock percentage */
1.76 christos 280: #define CPU_MAXID 15 /* number of valid machdep ids */
1.19 cgd 281:
282: #define CTL_MACHDEP_NAMES { \
283: { 0, 0 }, \
284: { "console_device", CTLTYPE_STRUCT }, \
1.37 fvdl 285: { "biosbasemem", CTLTYPE_INT }, \
286: { "biosextmem", CTLTYPE_INT }, \
287: { "nkpde", CTLTYPE_INT }, \
1.40 drochner 288: { "booted_kernel", CTLTYPE_STRING }, \
1.52 fvdl 289: { "diskinfo", CTLTYPE_STRUCT }, \
1.56 fvdl 290: { "fpu_present", CTLTYPE_INT }, \
1.75 thorpej 291: { "osfxsr", CTLTYPE_INT }, \
292: { "sse", CTLTYPE_INT }, \
293: { "sse2", CTLTYPE_INT }, \
1.76 christos 294: { "tm_longrun_mode", CTLTYPE_INT }, \
295: { "tm_longrun_frequency", CTLTYPE_INT }, \
296: { "tm_longrun_voltage", CTLTYPE_INT }, \
297: { "tm_longrun_percentage", CTLTYPE_INT }, \
1.19 cgd 298: }
1.52 fvdl 299:
300:
301: /*
302: * Structure for CPU_DISKINFO sysctl call.
303: * XXX this should be somewhere else.
304: */
305: #define MAX_BIOSDISKS 16
306:
307: struct disklist {
308: int dl_nbiosdisks; /* number of bios disks */
309: struct biosdisk_info {
310: int bi_dev; /* BIOS device # (0x80 ..) */
311: int bi_cyl; /* cylinders on disk */
312: int bi_head; /* heads per track */
313: int bi_sec; /* sectors per track */
314: u_int64_t bi_lbasecs; /* total sec. (iff ext13) */
315: #define BIFLAG_INVALID 0x01
316: #define BIFLAG_EXTINT13 0x02
317: int bi_flags;
318: } dl_biosdisks[MAX_BIOSDISKS];
319:
320: int dl_nnativedisks; /* number of native disks */
321: struct nativedisk_info {
322: char ni_devname[16]; /* native device name */
323: int ni_nmatches; /* # of matches w/ BIOS */
324: int ni_biosmatches[MAX_BIOSDISKS]; /* indices in dl_biosdisks */
325: } dl_nativedisks[1]; /* actually longer */
326: };
1.14 mycroft 327:
328: #endif /* !_I386_CPU_H_ */
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