sys/arch/hp700/include/cpu.h

   1 /*      $NetBSD: cpu.h,v 1.33 2009/05/13 14:33:42 skrll Exp $   */
   2
   3 /*      $OpenBSD: cpu.h,v 1.55 2008/07/23 17:39:35 kettenis Exp $       */
   4
   5 /*
   6  * Copyright (c) 2000-2004 Michael Shalayeff
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21  * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
  22  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  24  * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  26  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  27  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  28  * THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30 /*
  31  * Copyright (c) 1988-1994, The University of Utah and
  32  * the Computer Systems Laboratory at the University of Utah (CSL).
  33  * All rights reserved.
  34  *
  35  * Permission to use, copy, modify and distribute this software is hereby
  36  * granted provided that (1) source code retains these copyright, permission,
  37  * and disclaimer notices, and (2) redistributions including binaries
  38  * reproduce the notices in supporting documentation, and (3) all advertising
  39  * materials mentioning features or use of this software display the following
  40  * acknowledgement: ``This product includes software developed by the
  41  * Computer Systems Laboratory at the University of Utah.''
  42  *
  43  * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
  44  * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
  45  * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  46  *
  47  * CSL requests users of this software to return to csl-dist@cs.utah.edu any
  48  * improvements that they make and grant CSL redistribution rights.
  49  *
  50  *      Utah $Hdr: cpu.h 1.19 94/12/16$
  51  */
  52
  53 #ifndef _MACHINE_CPU_H_
  54 #define _MACHINE_CPU_H_
  55
  56 #include <machine/trap.h>
  57 #include <machine/frame.h>
  58 #include <machine/reg.h>
  59
  60
  61 #ifndef _LOCORE
  62
  63 /* types */
  64 enum hppa_cpu_type {
  65         hpc_unknown,
  66         hpcx,   /* PA7000 (x)           PA 1.0 */
  67         hpcxs,  /* PA7000 (s)           PA 1.1a */
  68         hpcxt,  /* PA7100 (t)           PA 1.1b */
  69         hpcxl,  /* PA7100LC (l)         PA 1.1c */
  70         hpcxtp, /* PA7200 (t')          PA 1.1d */
  71         hpcxl2, /* PA7300LC (l2)        PA 1.1e */
  72         hpcxu,  /* PA8000 (u)           PA 2.0 */
  73         hpcxup, /* PA8200 (u+)          PA 2.0 */
  74         hpcxw,  /* PA8500 (w)           PA 2.0 */
  75         hpcxwp, /* PA8600 (w+)          PA 2.0 */
  76         hpcxw2, /* PA8700 (piranha)     PA 2.0 */
  77         mako    /* PA8800 (mako)        PA 2.0 */
  78 };
  79
  80 /*
  81  * A CPU description.
  82  */
  83 struct hppa_cpu_info {
  84         /* The official name of the chip. */
  85         const char *hci_chip_name;
  86
  87         /* The nickname for the chip. */
  88         const char *hci_chip_nickname;
  89
  90         /* The type and PA-RISC specification of the chip. */
  91         const char hci_chip_type[8];
  92         enum hppa_cpu_type hci_cputype;
  93         int  hci_cpuversion;
  94         int  hci_features;              /* CPU types and features */
  95 #define HPPA_FTRS_TLBU          0x00000001
  96 #define HPPA_FTRS_BTLBU         0x00000002
  97 #define HPPA_FTRS_HVT           0x00000004
  98 #define HPPA_FTRS_W32B          0x00000008
  99
 100         const char *hci_chip_spec;
 101
 102         int (*desidhash)(void);
 103         const u_int *itlbh, *dtlbh, *itlbnah, *dtlbnah, *tlbdh;
 104         int (*dbtlbins)(int, pa_space_t, vaddr_t, paddr_t, vsize_t, u_int);
 105         int (*ibtlbins)(int, pa_space_t, vaddr_t, paddr_t, vsize_t, u_int);
 106         int (*btlbprg)(int);
 107         int (*hptinit)(vaddr_t, vsize_t);
 108 };
 109
 110 #ifdef _KERNEL
 111 extern const struct hppa_cpu_info *hppa_cpu_info;
 112 extern int cpu_hvers;
 113 extern int cpu_revision;
 114 extern register_t kpsw;
 115 #endif
 116 #endif
 117
 118 /*
 119  * COPR/SFUs
 120  */
 121 #define HPPA_FPUS       0xc0
 122 #define HPPA_PMSFUS     0x20    /* ??? */
 123
 124 /*
 125  * Exported definitions unique to hp700/PA-RISC cpu support.
 126  */
 127
 128 /*
 129  * COPR/SFUs
 130  */
 131 #define HPPA_FPUVER(w)  (((w) & 0x003ff800) >> 11)
 132 #define HPPA_FPU_OP(w)  ((w) >> 26)
 133 #define HPPA_FPU_UNMPL  0x01    /* exception reg, the rest is << 1 */
 134 #define HPPA_FPU_ILL    0x80    /* software-only */
 135 #define HPPA_FPU_I      0x01
 136 #define HPPA_FPU_U      0x02
 137 #define HPPA_FPU_O      0x04
 138 #define HPPA_FPU_Z      0x08
 139 #define HPPA_FPU_V      0x10
 140 #define HPPA_FPU_D      0x20
 141 #define HPPA_FPU_T      0x40
 142 #define HPPA_FPU_XMASK  0x7f
 143 #define HPPA_FPU_T_POS  25
 144 #define HPPA_FPU_RM     0x00000600
 145 #define HPPA_FPU_CQ     0x00fff800
 146 #define HPPA_FPU_C      0x04000000
 147 #define HPPA_FPU_FLSH   27
 148 #define HPPA_FPU_INIT   (0)
 149 #define HPPA_FPU_FORK(s) ((s) & ~((uint64_t)(HPPA_FPU_XMASK) << 32))
 150
 151 /*
 152  * definitions of cpu-dependent requirements
 153  * referenced in generic code
 154  */
 155
 156 #define HPPA_PGALIAS    0x00100000
 157 #define HPPA_PGAMASK    0xfff00000
 158 #define HPPA_PGAOFF     0x000fffff
 159 #define HPPA_SPAMASK    0xf0f0f000
 160
 161 #define HPPA_IOSPACE    0xf0000000
 162 #define HPPA_IOLEN      0x10000000
 163 #define HPPA_PDC_LOW    0xef000000
 164 #define HPPA_PDC_HIGH   0xf1000000
 165 #define HPPA_IOBCAST    0xfffc0000
 166 #define HPPA_LBCAST     0xfffc0000
 167 #define HPPA_GBCAST     0xfffe0000
 168 #define HPPA_FPA        0xfff80000
 169 #define HPPA_FLEX_DATA  0xfff80001
 170 #define HPPA_DMA_ENABLE 0x00000001
 171 #define HPPA_SPA_ENABLE 0x00000020
 172 #define HPPA_NMODSPBUS  64
 173
 174 #ifndef _LOCORE
 175 #ifdef _KERNEL
 176
 177 #if defined(_KERNEL_OPT)
 178 #include "opt_lockdebug.h"
 179 #endif
 180
 181 /*
 182  * External definitions unique to PA-RISC cpu support.
 183  * These are the "public" declarations - those needed in
 184  * machine-independent source code.  The "private" ones
 185  * are in machdep.h.
 186  *
 187  * Note that the name of this file is NOT meant to imply
 188  * that it has anything to do with PA-RISC CPU stuff.
 189  * The name "cpu" is historical, and used in the common
 190  * code to identify machine-dependent functions, etc.
 191  */
 192
 193 /* clockframe describes the system before we took an interrupt. */
 194 struct clockframe {
 195         int     cf_flags;
 196         int     cf_spl;
 197         u_int   cf_pc;
 198 };
 199 #define CLKF_PC(framep)         ((framep)->cf_pc)
 200 #define CLKF_INTR(framep)       ((framep)->cf_flags & TFF_INTR)
 201 #define CLKF_USERMODE(framep)   ((framep)->cf_flags & T_USER)
 202
 203 #define cpu_signotify(l)        (setsoftast())
 204 #define cpu_need_proftick(l)    ((l)->l_pflag |= LP_OWEUPC, setsoftast())
 205
 206 #include <sys/cpu_data.h>
 207 struct cpu_info {
 208         struct cpu_data ci_data;        /* MI per-cpu data */
 209
 210         struct  lwp     *ci_curlwp;     /* CPU owner */
 211         int             ci_cpuid;       /* CPU index (see cpus[] array) */
 212         int             ci_mtx_count;
 213         int             ci_mtx_oldspl;
 214         int             ci_want_resched;
 215 };
 216
 217 #include <machine/intr.h>
 218
 219 extern struct cpu_info cpu_info_store;
 220
 221 /*
 222  * definitions of cpu-dependent requirements
 223  * referenced in generic code
 224  */
 225
 226 #define curcpu()                        (&cpu_info_store)
 227 #define cpu_number()                    0
 228
 229 #define cpu_proc_fork(p1, p2)
 230
 231 #ifdef MULTIPROCESSOR
 232 #define CPU_IS_PRIMARY(ci)              1
 233 #define CPU_INFO_ITERATOR               int
 234 #define CPU_INFO_FOREACH(cii, ci)       cii = 0; ci = curcpu(), cii < 1; cii++
 235
 236 void    cpu_boot_secondary_processors(void);
 237 #endif
 238
 239 static __inline struct lwp *
 240 hppa_curlwp(void)
 241 {
 242         struct lwp *l;
 243
 244         __asm volatile("mfctl %1, %0" : "=r" (l): "i" (CR_CURLWP));
 245
 246         return (struct lwp *)l;
 247 }
 248
 249 #define curlwp                          hppa_curlwp()
 250
 251 #define DELAY(x) delay(x)
 252
 253 static __inline paddr_t
 254 kvtop(const void *va)
 255 {
 256         paddr_t pa;
 257
 258         __asm volatile ("lpa %%r0(%1), %0" : "=r" (pa) : "r" (va));
 259         return pa;
 260 }
 261
 262 extern int (*cpu_desidhash)(void);
 263
 264 void    delay(u_int);
 265 void    hppa_init(paddr_t, void *);
 266 void    trap(int, struct trapframe *);
 267 void    hppa_ras(struct lwp *);
 268 int     spcopy(pa_space_t, const void *, pa_space_t, void *, size_t);
 269 int     spstrcpy(pa_space_t, const void *, pa_space_t, void *, size_t,
 270                  size_t *);
 271 int     copy_on_fault(void);
 272 void    lwp_trampoline(void);
 273 void    setfunc_trampoline(void);
 274 int     cpu_dumpsize(void);
 275 int     cpu_dump(void);
 276 #endif
 277
 278 /*
 279  * Boot arguments stuff
 280  */
 281
 282 #define BOOTARG_LEN     (PAGE_SIZE)
 283 #define BOOTARG_OFF     (0x10000)
 284
 285 /*
 286  * CTL_MACHDEP definitions.
 287  */
 288 #define CPU_CONSDEV             1       /* dev_t: console terminal device */
 289 #define CPU_BOOTED_KERNEL       2       /* string: booted kernel name */
 290 #define CPU_MAXID               3       /* number of valid machdep ids */
 291
 292 #endif
 293
 294 #endif /* _MACHINE_CPU_H_ */