1 /* $OpenBSD: cpu.h,v 1.80 2011/09/20 21:44:09 miod Exp $ */ 2 3 /* 4 * Copyright (c) 2000-2004 Michael Shalayeff 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, 20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 25 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 26 * THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 /* 29 * Copyright (c) 1988-1994, The University of Utah and 30 * the Computer Systems Laboratory at the University of Utah (CSL). 31 * All rights reserved. 32 * 33 * Permission to use, copy, modify and distribute this software is hereby 34 * granted provided that (1) source code retains these copyright, permission, 35 * and disclaimer notices, and (2) redistributions including binaries 36 * reproduce the notices in supporting documentation, and (3) all advertising 37 * materials mentioning features or use of this software display the following 38 * acknowledgement: ``This product includes software developed by the 39 * Computer Systems Laboratory at the University of Utah.'' 40 * 41 * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS 42 * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF 43 * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 44 * 45 * CSL requests users of this software to return to csl-dist@cs.utah.edu any 46 * improvements that they make and grant CSL redistribution rights. 47 * 48 * Utah $Hdr: cpu.h 1.19 94/12/16$ 49 */ 50 51 #ifndef _MACHINE_CPU_H_ 52 #define _MACHINE_CPU_H_ 53 54 #include <machine/trap.h> 55 #include <machine/frame.h> 56 57 /* 58 * CPU types and features 59 */ 60 #define HPPA_FTRS_TLBU 0x00000001 61 #define HPPA_FTRS_BTLBU 0x00000002 62 #define HPPA_FTRS_HVT 0x00000004 63 #define HPPA_FTRS_W32B 0x00000008 64 65 #ifndef _LOCORE 66 #ifdef _KERNEL 67 #include <sys/device.h> 68 #include <sys/queue.h> 69 #include <sys/sched.h> 70 71 #include <machine/mutex.h> 72 73 /* 74 * Note that the alignment of ci_trap_save is important since we want to keep 75 * it within a single cache line. As a result, it must be kept as the first 76 * entry within the cpu_info struct. 77 */ 78 struct cpu_info { 79 register_t ci_trap_save[16]; 80 81 struct device *ci_dev; 82 int ci_cpuid; 83 hppa_hpa_t ci_hpa; 84 volatile int ci_flags; 85 86 struct proc *ci_curproc; 87 paddr_t ci_fpu_state; /* Process FPU state. */ 88 paddr_t ci_stack; 89 90 register_t ci_psw; /* Processor Status Word. */ 91 volatile int ci_cpl; 92 volatile u_long ci_mask; /* Hardware interrupt mask. */ 93 volatile u_long ci_ipending; 94 volatile int ci_in_intr; 95 int ci_want_resched; 96 u_long ci_itmr; 97 98 volatile u_long ci_ipi; /* IPIs pending. */ 99 struct mutex ci_ipi_mtx; 100 101 struct schedstate_percpu ci_schedstate; 102 u_int32_t ci_randseed; 103 #ifdef DIAGNOSTIC 104 int ci_mutex_level; 105 #endif 106 } __attribute__((__aligned__(64))); 107 108 #define CPUF_RUNNING 0x0001 /* CPU is running. */ 109 110 #ifdef MULTIPROCESSOR 111 #define HPPA_MAXCPUS 4 112 #else 113 #define HPPA_MAXCPUS 1 114 #endif 115 116 extern struct cpu_info cpu_info[HPPA_MAXCPUS]; 117 118 #define MAXCPUS HPPA_MAXCPUS 119 120 static __inline struct cpu_info * 121 curcpu(void) 122 { 123 struct cpu_info *ci; 124 125 asm volatile ("mfctl %%cr29, %0" : "=r"(ci)); 126 127 return ci; 128 } 129 130 #define cpu_number() (curcpu()->ci_cpuid) 131 132 #define CPU_INFO_UNIT(ci) ((ci)->ci_dev ? (ci)->ci_dev->dv_unit : 0) 133 #define CPU_IS_PRIMARY(ci) ((ci)->ci_cpuid == 0) 134 #define CPU_INFO_ITERATOR int 135 #define CPU_INFO_FOREACH(cii, ci) \ 136 for (cii = 0, ci = &cpu_info[0]; cii < ncpus; cii++, ci++) 137 138 /* types */ 139 enum hppa_cpu_type { 140 hpcxs, hpcxt, hpcxta, hpcxl, hpcxl2, hpcxu, hpcxu2, hpcxw 141 }; 142 extern enum hppa_cpu_type cpu_type; 143 extern const char *cpu_typename; 144 extern int cpu_hvers; 145 #endif 146 #endif 147 148 /* 149 * COPR/SFUs 150 */ 151 #define HPPA_FPUS 0xc0 152 #define HPPA_FPUVER(w) (((w) & 0x003ff800) >> 11) 153 #define HPPA_FPU_OP(w) ((w) >> 26) 154 #define HPPA_FPU_UNMPL 0x01 /* exception reg, the rest is << 1 */ 155 #define HPPA_FPU_ILL 0x80 /* software-only */ 156 #define HPPA_FPU_I 0x01 157 #define HPPA_FPU_U 0x02 158 #define HPPA_FPU_O 0x04 159 #define HPPA_FPU_Z 0x08 160 #define HPPA_FPU_V 0x10 161 #define HPPA_FPU_D 0x20 162 #define HPPA_FPU_T 0x40 163 #define HPPA_FPU_XMASK 0x7f 164 #define HPPA_FPU_T_POS 25 165 #define HPPA_FPU_RM 0x00000600 166 #define HPPA_FPU_CQ 0x00fff800 167 #define HPPA_FPU_C 0x04000000 168 #define HPPA_FPU_FLSH 27 169 #define HPPA_FPU_INIT (0) 170 #define HPPA_FPU_FORK(s) ((s) & ~((u_int64_t)(HPPA_FPU_XMASK)<<32)) 171 #define HPPA_PMSFUS 0x20 /* ??? */ 172 173 /* 174 * Exported definitions unique to hp700/PA-RISC cpu support. 175 */ 176 177 #define HPPA_PGALIAS 0x00400000 178 #define HPPA_PGAMASK 0xffc00000 179 #define HPPA_PGAOFF 0x003fffff 180 181 #define HPPA_IOBEGIN 0xf0000000 182 #define HPPA_IOLEN 0x10000000 183 #define HPPA_PDC_LOW 0xef000000 184 #define HPPA_PDC_HIGH 0xf1000000 185 #define HPPA_IOBCAST 0xfffc0000 186 #define HPPA_LBCAST 0xfffc0000 187 #define HPPA_GBCAST 0xfffe0000 188 #define HPPA_FPA 0xfff80000 189 #define HPPA_FLEX_DATA 0xfff80001 190 #define HPPA_DMA_ENABLE 0x00000001 191 #define HPPA_FLEX_MASK 0xfffc0000 192 #define HPPA_FLEX_SIZE (1 + ~HPPA_FLEX_MASK) 193 #define HPPA_FLEX(a) (((a) & HPPA_FLEX_MASK) >> 18) 194 #define HPPA_SPA_ENABLE 0x00000020 195 #define HPPA_NMODSPBUS 64 196 197 #define clockframe trapframe 198 #define CLKF_PC(framep) ((framep)->tf_iioq_head) 199 #define CLKF_INTR(framep) ((framep)->tf_flags & TFF_INTR) 200 #define CLKF_USERMODE(framep) ((framep)->tf_flags & T_USER) 201 #define CLKF_SYSCALL(framep) ((framep)->tf_flags & TFF_SYS) 202 203 #define need_proftick(p) setsoftast(p) 204 #define PROC_PC(p) ((p)->p_md.md_regs->tf_iioq_head) 205 206 #ifndef _LOCORE 207 #ifdef _KERNEL 208 209 #define DELAY(x) delay(x) 210 211 extern int (*cpu_desidhash)(void); 212 213 void signotify(struct proc *); 214 void delay(u_int us); 215 void hppa_init(paddr_t start); 216 void trap(int type, struct trapframe *frame); 217 int spcopy(pa_space_t ssp, const void *src, 218 pa_space_t dsp, void *dst, size_t size); 219 int spstrcpy(pa_space_t ssp, const void *src, 220 pa_space_t dsp, void *dst, size_t size, size_t *rsize); 221 int copy_on_fault(void); 222 void switch_trampoline(void); 223 int cpu_dumpsize(void); 224 int cpu_dump(void); 225 226 #ifdef MULTIPROCESSOR 227 void cpu_boot_secondary_processors(void); 228 void cpu_hw_init(void); 229 void cpu_hatch(void); 230 void cpu_unidle(struct cpu_info *); 231 #else 232 #define cpu_unidle(ci) 233 #endif 234 235 extern void need_resched(struct cpu_info *); 236 #define clear_resched(ci) (ci)->ci_want_resched = 0 237 238 #endif 239 240 /* 241 * Boot arguments stuff 242 */ 243 244 #define BOOTARG_LEN (NBPG) 245 #define BOOTARG_OFF (0x10000) 246 247 /* 248 * CTL_MACHDEP definitions. 249 */ 250 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 251 #define CPU_FPU 2 /* int: fpu present/enabled */ 252 #define CPU_LED_BLINK 3 /* int: twiddle heartbeat LED/LCD */ 253 #define CPU_MAXID 4 /* number of valid machdep ids */ 254 255 #define CTL_MACHDEP_NAMES { \ 256 { 0, 0 }, \ 257 { "console_device", CTLTYPE_STRUCT }, \ 258 { "fpu", CTLTYPE_INT }, \ 259 { "led_blink", CTLTYPE_INT }, \ 260 } 261 262 #ifdef _KERNEL 263 #include <sys/queue.h> 264 265 #ifdef MULTIPROCESSOR 266 #include <sys/mplock.h> 267 #endif 268 269 struct blink_led { 270 void (*bl_func)(void *, int); 271 void *bl_arg; 272 SLIST_ENTRY(blink_led) bl_next; 273 }; 274 275 extern void blink_led_register(struct blink_led *); 276 #endif 277 #endif 278 279 #endif /* _MACHINE_CPU_H_ */ 280