sys/arm/arm/cpufunc.c

   1 /*      $NetBSD: cpufunc.c,v 1.65 2003/11/05 12:53:15 scw Exp $ */
   2
   3 /*-
   4  * arm9 support code Copyright (C) 2001 ARM Ltd
   5  * Copyright (c) 1997 Mark Brinicombe.
   6  * Copyright (c) 1997 Causality Limited
   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  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed by Causality Limited.
  20  * 4. The name of Causality Limited may not be used to endorse or promote
  21  *    products derived from this software without specific prior written
  22  *    permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY CAUSALITY LIMITED ``AS IS'' AND ANY EXPRESS
  25  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  26  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  27  * DISCLAIMED. IN NO EVENT SHALL CAUSALITY LIMITED BE LIABLE FOR ANY DIRECT,
  28  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  29  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  30  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  * RiscBSD kernel project
  37  *
  38  * cpufuncs.c
  39  *
  40  * C functions for supporting CPU / MMU / TLB specific operations.
  41  *
  42  * Created      : 30/01/97
  43  */
  44 #include <sys/cdefs.h>
  45 __FBSDID("$FreeBSD$");
  46
  47 #include <sys/param.h>
  48 #include <sys/systm.h>
  49 #include <sys/lock.h>
  50 #include <sys/mutex.h>
  51 #include <sys/bus.h>
  52 #include <machine/bus.h>
  53 #include <machine/cpu.h>
  54 #include <machine/disassem.h>
  55
  56 #include <vm/vm.h>
  57 #include <vm/pmap.h>
  58 #include <vm/uma.h>
  59
  60 #include <machine/cpuconf.h>
  61 #include <machine/cpufunc.h>
  62 #include <machine/bootconfig.h>
  63
  64 #ifdef CPU_XSCALE_80200
  65 #include <arm/xscale/i80200/i80200reg.h>
  66 #include <arm/xscale/i80200/i80200var.h>
  67 #endif
  68
  69 #if defined(CPU_XSCALE_80321) || defined(CPU_XSCALE_80219)
  70 #include <arm/xscale/i80321/i80321reg.h>
  71 #include <arm/xscale/i80321/i80321var.h>
  72 #endif
  73
  74 /*
  75  * Some definitions in i81342reg.h clash with i80321reg.h.
  76  * This only happens for the LINT kernel. As it happens,
  77  * we don't need anything from i81342reg.h that we already
  78  * got from somewhere else during a LINT compile.
  79  */
  80 #if defined(CPU_XSCALE_81342) && !defined(COMPILING_LINT)
  81 #include <arm/xscale/i8134x/i81342reg.h>
  82 #endif
  83
  84 #ifdef CPU_XSCALE_IXP425
  85 #include <arm/xscale/ixp425/ixp425reg.h>
  86 #include <arm/xscale/ixp425/ixp425var.h>
  87 #endif
  88
  89 /* PRIMARY CACHE VARIABLES */
  90 int     arm_picache_size;
  91 int     arm_picache_line_size;
  92 int     arm_picache_ways;
  93
  94 int     arm_pdcache_size;       /* and unified */
  95 int     arm_pdcache_line_size;
  96 int     arm_pdcache_ways;
  97
  98 int     arm_pcache_type;
  99 int     arm_pcache_unified;
 100
 101 int     arm_dcache_align;
 102 int     arm_dcache_align_mask;
 103
 104 u_int   arm_cache_level;
 105 u_int   arm_cache_type[14];
 106 u_int   arm_cache_loc;
 107
 108 /* 1 == use cpu_sleep(), 0 == don't */
 109 int cpu_do_powersave;
 110 int ctrl;
 111
 112 #ifdef CPU_ARM9
 113 struct cpu_functions arm9_cpufuncs = {
 114         /* CPU functions */
 115
 116         cpufunc_id,                     /* id                   */
 117         cpufunc_nullop,                 /* cpwait               */
 118
 119         /* MMU functions */
 120
 121         cpufunc_control,                /* control              */
 122         cpufunc_domains,                /* Domain               */
 123         arm9_setttb,                    /* Setttb               */
 124         cpufunc_faultstatus,            /* Faultstatus          */
 125         cpufunc_faultaddress,           /* Faultaddress         */
 126
 127         /* TLB functions */
 128
 129         armv4_tlb_flushID,              /* tlb_flushID          */
 130         arm9_tlb_flushID_SE,            /* tlb_flushID_SE       */
 131         armv4_tlb_flushI,               /* tlb_flushI           */
 132         (void *)armv4_tlb_flushI,       /* tlb_flushI_SE        */
 133         armv4_tlb_flushD,               /* tlb_flushD           */
 134         armv4_tlb_flushD_SE,            /* tlb_flushD_SE        */
 135
 136         /* Cache operations */
 137
 138         arm9_icache_sync_all,           /* icache_sync_all      */
 139         arm9_icache_sync_range,         /* icache_sync_range    */
 140
 141         arm9_dcache_wbinv_all,          /* dcache_wbinv_all     */
 142         arm9_dcache_wbinv_range,        /* dcache_wbinv_range   */
 143         arm9_dcache_inv_range,          /* dcache_inv_range     */
 144         arm9_dcache_wb_range,           /* dcache_wb_range      */
 145
 146         armv4_idcache_inv_all,          /* idcache_inv_all      */
 147         arm9_idcache_wbinv_all,         /* idcache_wbinv_all    */
 148         arm9_idcache_wbinv_range,       /* idcache_wbinv_range  */
 149         cpufunc_nullop,                 /* l2cache_wbinv_all    */
 150         (void *)cpufunc_nullop,         /* l2cache_wbinv_range  */
 151         (void *)cpufunc_nullop,         /* l2cache_inv_range    */
 152         (void *)cpufunc_nullop,         /* l2cache_wb_range     */
 153         (void *)cpufunc_nullop,         /* l2cache_drain_writebuf */
 154
 155         /* Other functions */
 156
 157         cpufunc_nullop,                 /* flush_prefetchbuf    */
 158         armv4_drain_writebuf,           /* drain_writebuf       */
 159         cpufunc_nullop,                 /* flush_brnchtgt_C     */
 160         (void *)cpufunc_nullop,         /* flush_brnchtgt_E     */
 161
 162         (void *)cpufunc_nullop,         /* sleep                */
 163
 164         /* Soft functions */
 165
 166         cpufunc_null_fixup,             /* dataabt_fixup        */
 167         cpufunc_null_fixup,             /* prefetchabt_fixup    */
 168
 169         arm9_context_switch,            /* context_switch       */
 170
 171         arm9_setup                      /* cpu setup            */
 172
 173 };
 174 #endif /* CPU_ARM9 */
 175
 176 #if defined(CPU_ARM9E) || defined(CPU_ARM10)
 177 struct cpu_functions armv5_ec_cpufuncs = {
 178         /* CPU functions */
 179
 180         cpufunc_id,                     /* id                   */
 181         cpufunc_nullop,                 /* cpwait               */
 182
 183         /* MMU functions */
 184
 185         cpufunc_control,                /* control              */
 186         cpufunc_domains,                /* Domain               */
 187         armv5_ec_setttb,                /* Setttb               */
 188         cpufunc_faultstatus,            /* Faultstatus          */
 189         cpufunc_faultaddress,           /* Faultaddress         */
 190
 191         /* TLB functions */
 192
 193         armv4_tlb_flushID,              /* tlb_flushID          */
 194         arm10_tlb_flushID_SE,           /* tlb_flushID_SE       */
 195         armv4_tlb_flushI,               /* tlb_flushI           */
 196         arm10_tlb_flushI_SE,            /* tlb_flushI_SE        */
 197         armv4_tlb_flushD,               /* tlb_flushD           */
 198         armv4_tlb_flushD_SE,            /* tlb_flushD_SE        */
 199
 200         /* Cache operations */
 201
 202         armv5_ec_icache_sync_all,       /* icache_sync_all      */
 203         armv5_ec_icache_sync_range,     /* icache_sync_range    */
 204
 205         armv5_ec_dcache_wbinv_all,      /* dcache_wbinv_all     */
 206         armv5_ec_dcache_wbinv_range,    /* dcache_wbinv_range   */
 207         armv5_ec_dcache_inv_range,      /* dcache_inv_range     */
 208         armv5_ec_dcache_wb_range,       /* dcache_wb_range      */
 209
 210         armv4_idcache_inv_all,          /* idcache_inv_all      */
 211         armv5_ec_idcache_wbinv_all,     /* idcache_wbinv_all    */
 212         armv5_ec_idcache_wbinv_range,   /* idcache_wbinv_range  */
 213
 214         cpufunc_nullop,                 /* l2cache_wbinv_all    */
 215         (void *)cpufunc_nullop,         /* l2cache_wbinv_range  */
 216         (void *)cpufunc_nullop,         /* l2cache_inv_range    */
 217         (void *)cpufunc_nullop,         /* l2cache_wb_range     */
 218         (void *)cpufunc_nullop,         /* l2cache_drain_writebuf */
 219
 220         /* Other functions */
 221
 222         cpufunc_nullop,                 /* flush_prefetchbuf    */
 223         armv4_drain_writebuf,           /* drain_writebuf       */
 224         cpufunc_nullop,                 /* flush_brnchtgt_C     */
 225         (void *)cpufunc_nullop,         /* flush_brnchtgt_E     */
 226
 227         (void *)cpufunc_nullop,         /* sleep                */
 228
 229         /* Soft functions */
 230
 231         cpufunc_null_fixup,             /* dataabt_fixup        */
 232         cpufunc_null_fixup,             /* prefetchabt_fixup    */
 233
 234         arm10_context_switch,           /* context_switch       */
 235
 236         arm10_setup                     /* cpu setup            */
 237
 238 };
 239
 240 struct cpu_functions sheeva_cpufuncs = {
 241         /* CPU functions */
 242
 243         cpufunc_id,                     /* id                   */
 244         cpufunc_nullop,                 /* cpwait               */
 245
 246         /* MMU functions */
 247
 248         cpufunc_control,                /* control              */
 249         cpufunc_domains,                /* Domain               */
 250         sheeva_setttb,                  /* Setttb               */
 251         cpufunc_faultstatus,            /* Faultstatus          */
 252         cpufunc_faultaddress,           /* Faultaddress         */
 253
 254         /* TLB functions */
 255
 256         armv4_tlb_flushID,              /* tlb_flushID          */
 257         arm10_tlb_flushID_SE,           /* tlb_flushID_SE       */
 258         armv4_tlb_flushI,               /* tlb_flushI           */
 259         arm10_tlb_flushI_SE,            /* tlb_flushI_SE        */
 260         armv4_tlb_flushD,               /* tlb_flushD           */
 261         armv4_tlb_flushD_SE,            /* tlb_flushD_SE        */
 262
 263         /* Cache operations */
 264
 265         armv5_ec_icache_sync_all,       /* icache_sync_all      */
 266         armv5_ec_icache_sync_range,     /* icache_sync_range    */
 267
 268         armv5_ec_dcache_wbinv_all,      /* dcache_wbinv_all     */
 269         sheeva_dcache_wbinv_range,      /* dcache_wbinv_range   */
 270         sheeva_dcache_inv_range,        /* dcache_inv_range     */
 271         sheeva_dcache_wb_range,         /* dcache_wb_range      */
 272
 273         armv4_idcache_inv_all,          /* idcache_inv_all      */
 274         armv5_ec_idcache_wbinv_all,     /* idcache_wbinv_all    */
 275         sheeva_idcache_wbinv_range,     /* idcache_wbinv_all    */
 276
 277         sheeva_l2cache_wbinv_all,       /* l2cache_wbinv_all    */
 278         sheeva_l2cache_wbinv_range,     /* l2cache_wbinv_range  */
 279         sheeva_l2cache_inv_range,       /* l2cache_inv_range    */
 280         sheeva_l2cache_wb_range,        /* l2cache_wb_range     */
 281         (void *)cpufunc_nullop,         /* l2cache_drain_writebuf */
 282
 283         /* Other functions */
 284
 285         cpufunc_nullop,                 /* flush_prefetchbuf    */
 286         armv4_drain_writebuf,           /* drain_writebuf       */
 287         cpufunc_nullop,                 /* flush_brnchtgt_C     */
 288         (void *)cpufunc_nullop,         /* flush_brnchtgt_E     */
 289
 290         sheeva_cpu_sleep,               /* sleep                */
 291
 292         /* Soft functions */
 293
 294         cpufunc_null_fixup,             /* dataabt_fixup        */
 295         cpufunc_null_fixup,             /* prefetchabt_fixup    */
 296
 297         arm10_context_switch,           /* context_switch       */
 298
 299         arm10_setup                     /* cpu setup            */
 300 };
 301 #endif /* CPU_ARM9E || CPU_ARM10 */
 302
 303 #ifdef CPU_ARM10
 304 struct cpu_functions arm10_cpufuncs = {
 305         /* CPU functions */
 306
 307         cpufunc_id,                     /* id                   */
 308         cpufunc_nullop,                 /* cpwait               */
 309
 310         /* MMU functions */
 311
 312         cpufunc_control,                /* control              */
 313         cpufunc_domains,                /* Domain               */
 314         arm10_setttb,                   /* Setttb               */
 315         cpufunc_faultstatus,            /* Faultstatus          */
 316         cpufunc_faultaddress,           /* Faultaddress         */
 317
 318         /* TLB functions */
 319
 320         armv4_tlb_flushID,              /* tlb_flushID          */
 321         arm10_tlb_flushID_SE,           /* tlb_flushID_SE       */
 322         armv4_tlb_flushI,               /* tlb_flushI           */
 323         arm10_tlb_flushI_SE,            /* tlb_flushI_SE        */
 324         armv4_tlb_flushD,               /* tlb_flushD           */
 325         armv4_tlb_flushD_SE,            /* tlb_flushD_SE        */
 326
 327         /* Cache operations */
 328
 329         arm10_icache_sync_all,          /* icache_sync_all      */
 330         arm10_icache_sync_range,        /* icache_sync_range    */
 331
 332         arm10_dcache_wbinv_all,         /* dcache_wbinv_all     */
 333         arm10_dcache_wbinv_range,       /* dcache_wbinv_range   */
 334         arm10_dcache_inv_range,         /* dcache_inv_range     */
 335         arm10_dcache_wb_range,          /* dcache_wb_range      */
 336
 337         armv4_idcache_inv_all,          /* idcache_inv_all      */
 338         arm10_idcache_wbinv_all,        /* idcache_wbinv_all    */
 339         arm10_idcache_wbinv_range,      /* idcache_wbinv_range  */
 340         cpufunc_nullop,                 /* l2cache_wbinv_all    */
 341         (void *)cpufunc_nullop,         /* l2cache_wbinv_range  */
 342         (void *)cpufunc_nullop,         /* l2cache_inv_range    */
 343         (void *)cpufunc_nullop,         /* l2cache_wb_range     */
 344         (void *)cpufunc_nullop,         /* l2cache_drain_writebuf */
 345
 346         /* Other functions */
 347
 348         cpufunc_nullop,                 /* flush_prefetchbuf    */
 349         armv4_drain_writebuf,           /* drain_writebuf       */
 350         cpufunc_nullop,                 /* flush_brnchtgt_C     */
 351         (void *)cpufunc_nullop,         /* flush_brnchtgt_E     */
 352
 353         (void *)cpufunc_nullop,         /* sleep                */
 354
 355         /* Soft functions */
 356
 357         cpufunc_null_fixup,             /* dataabt_fixup        */
 358         cpufunc_null_fixup,             /* prefetchabt_fixup    */
 359
 360         arm10_context_switch,           /* context_switch       */
 361
 362         arm10_setup                     /* cpu setup            */
 363
 364 };
 365 #endif /* CPU_ARM10 */
 366
 367 #ifdef CPU_MV_PJ4B
 368 struct cpu_functions pj4bv7_cpufuncs = {
 369         /* CPU functions */
 370
 371         cpufunc_id,                     /* id                   */
 372         arm11_drain_writebuf,           /* cpwait               */
 373
 374         /* MMU functions */
 375
 376         cpufunc_control,                /* control              */
 377         cpufunc_domains,                /* Domain               */
 378         pj4b_setttb,                    /* Setttb               */
 379         cpufunc_faultstatus,            /* Faultstatus          */
 380         cpufunc_faultaddress,           /* Faultaddress         */
 381
 382         /* TLB functions */
 383
 384         armv7_tlb_flushID,              /* tlb_flushID          */
 385         armv7_tlb_flushID_SE,           /* tlb_flushID_SE       */
 386         armv7_tlb_flushID,              /* tlb_flushI           */
 387         armv7_tlb_flushID_SE,           /* tlb_flushI_SE        */
 388         armv7_tlb_flushID,              /* tlb_flushD           */
 389         armv7_tlb_flushID_SE,           /* tlb_flushD_SE        */
 390
 391         /* Cache operations */
 392         armv7_idcache_wbinv_all,        /* icache_sync_all      */
 393         armv7_icache_sync_range,        /* icache_sync_range    */
 394
 395         armv7_dcache_wbinv_all,         /* dcache_wbinv_all     */
 396         armv7_dcache_wbinv_range,       /* dcache_wbinv_range   */
 397         armv7_dcache_inv_range,         /* dcache_inv_range     */
 398         armv7_dcache_wb_range,          /* dcache_wb_range      */
 399
 400         armv7_idcache_inv_all,          /* idcache_inv_all      */
 401         armv7_idcache_wbinv_all,        /* idcache_wbinv_all    */
 402         armv7_idcache_wbinv_range,      /* idcache_wbinv_all    */
 403
 404         (void *)cpufunc_nullop,         /* l2cache_wbinv_all    */
 405         (void *)cpufunc_nullop,         /* l2cache_wbinv_range  */
 406         (void *)cpufunc_nullop,         /* l2cache_inv_range    */
 407         (void *)cpufunc_nullop,         /* l2cache_wb_range     */
 408         (void *)cpufunc_nullop,         /* l2cache_drain_writebuf */
 409
 410         /* Other functions */
 411
 412         pj4b_drain_readbuf,             /* flush_prefetchbuf    */
 413         arm11_drain_writebuf,           /* drain_writebuf       */
 414         pj4b_flush_brnchtgt_all,        /* flush_brnchtgt_C     */
 415         pj4b_flush_brnchtgt_va,         /* flush_brnchtgt_E     */
 416
 417         (void *)cpufunc_nullop,         /* sleep                */
 418
 419         /* Soft functions */
 420
 421         cpufunc_null_fixup,             /* dataabt_fixup        */
 422         cpufunc_null_fixup,             /* prefetchabt_fixup    */
 423
 424         arm11_context_switch,           /* context_switch       */
 425
 426         pj4bv7_setup                    /* cpu setup            */
 427 };
 428 #endif /* CPU_MV_PJ4B */
 429
 430 #if defined(CPU_XSCALE_80200) || defined(CPU_XSCALE_80321) || \
 431   defined(CPU_XSCALE_PXA2X0) || defined(CPU_XSCALE_IXP425) || \
 432   defined(CPU_XSCALE_80219)
 433
 434 struct cpu_functions xscale_cpufuncs = {
 435         /* CPU functions */
 436
 437         cpufunc_id,                     /* id                   */
 438         xscale_cpwait,                  /* cpwait               */
 439
 440         /* MMU functions */
 441
 442         xscale_control,                 /* control              */
 443         cpufunc_domains,                /* domain               */
 444         xscale_setttb,                  /* setttb               */
 445         cpufunc_faultstatus,            /* faultstatus          */
 446         cpufunc_faultaddress,           /* faultaddress         */
 447
 448         /* TLB functions */
 449
 450         armv4_tlb_flushID,              /* tlb_flushID          */
 451         xscale_tlb_flushID_SE,          /* tlb_flushID_SE       */
 452         armv4_tlb_flushI,               /* tlb_flushI           */
 453         (void *)armv4_tlb_flushI,       /* tlb_flushI_SE        */
 454         armv4_tlb_flushD,               /* tlb_flushD           */
 455         armv4_tlb_flushD_SE,            /* tlb_flushD_SE        */
 456
 457         /* Cache operations */
 458
 459         xscale_cache_syncI,             /* icache_sync_all      */
 460         xscale_cache_syncI_rng,         /* icache_sync_range    */
 461
 462         xscale_cache_purgeD,            /* dcache_wbinv_all     */
 463         xscale_cache_purgeD_rng,        /* dcache_wbinv_range   */
 464         xscale_cache_flushD_rng,        /* dcache_inv_range     */
 465         xscale_cache_cleanD_rng,        /* dcache_wb_range      */
 466
 467         xscale_cache_flushID,           /* idcache_inv_all      */
 468         xscale_cache_purgeID,           /* idcache_wbinv_all    */
 469         xscale_cache_purgeID_rng,       /* idcache_wbinv_range  */
 470         cpufunc_nullop,                 /* l2cache_wbinv_all    */
 471         (void *)cpufunc_nullop,         /* l2cache_wbinv_range  */
 472         (void *)cpufunc_nullop,         /* l2cache_inv_range    */
 473         (void *)cpufunc_nullop,         /* l2cache_wb_range     */
 474         (void *)cpufunc_nullop,         /* l2cache_drain_writebuf */
 475
 476         /* Other functions */
 477
 478         cpufunc_nullop,                 /* flush_prefetchbuf    */
 479         armv4_drain_writebuf,           /* drain_writebuf       */
 480         cpufunc_nullop,                 /* flush_brnchtgt_C     */
 481         (void *)cpufunc_nullop,         /* flush_brnchtgt_E     */
 482
 483         xscale_cpu_sleep,               /* sleep                */
 484
 485         /* Soft functions */
 486
 487         cpufunc_null_fixup,             /* dataabt_fixup        */
 488         cpufunc_null_fixup,             /* prefetchabt_fixup    */
 489
 490         xscale_context_switch,          /* context_switch       */
 491
 492         xscale_setup                    /* cpu setup            */
 493 };
 494 #endif
 495 /* CPU_XSCALE_80200 || CPU_XSCALE_80321 || CPU_XSCALE_PXA2X0 || CPU_XSCALE_IXP425
 496    CPU_XSCALE_80219 */
 497
 498 #ifdef CPU_XSCALE_81342
 499 struct cpu_functions xscalec3_cpufuncs = {
 500         /* CPU functions */
 501
 502         cpufunc_id,                     /* id                   */
 503         xscale_cpwait,                  /* cpwait               */
 504
 505         /* MMU functions */
 506
 507         xscale_control,                 /* control              */
 508         cpufunc_domains,                /* domain               */
 509         xscalec3_setttb,                /* setttb               */
 510         cpufunc_faultstatus,            /* faultstatus          */
 511         cpufunc_faultaddress,           /* faultaddress         */
 512
 513         /* TLB functions */
 514
 515         armv4_tlb_flushID,              /* tlb_flushID          */
 516         xscale_tlb_flushID_SE,          /* tlb_flushID_SE       */
 517         armv4_tlb_flushI,               /* tlb_flushI           */
 518         (void *)armv4_tlb_flushI,       /* tlb_flushI_SE        */
 519         armv4_tlb_flushD,               /* tlb_flushD           */
 520         armv4_tlb_flushD_SE,            /* tlb_flushD_SE        */
 521
 522         /* Cache operations */
 523
 524         xscalec3_cache_syncI,           /* icache_sync_all      */
 525         xscalec3_cache_syncI_rng,       /* icache_sync_range    */
 526
 527         xscalec3_cache_purgeD,          /* dcache_wbinv_all     */
 528         xscalec3_cache_purgeD_rng,      /* dcache_wbinv_range   */
 529         xscale_cache_flushD_rng,        /* dcache_inv_range     */
 530         xscalec3_cache_cleanD_rng,      /* dcache_wb_range      */
 531
 532         xscale_cache_flushID,           /* idcache_inv_all      */
 533         xscalec3_cache_purgeID,         /* idcache_wbinv_all    */
 534         xscalec3_cache_purgeID_rng,     /* idcache_wbinv_range  */
 535         xscalec3_l2cache_purge,         /* l2cache_wbinv_all    */
 536         xscalec3_l2cache_purge_rng,     /* l2cache_wbinv_range  */
 537         xscalec3_l2cache_flush_rng,     /* l2cache_inv_range    */
 538         xscalec3_l2cache_clean_rng,     /* l2cache_wb_range     */
 539         (void *)cpufunc_nullop,         /* l2cache_drain_writebuf */
 540
 541         /* Other functions */
 542
 543         cpufunc_nullop,                 /* flush_prefetchbuf    */
 544         armv4_drain_writebuf,           /* drain_writebuf       */
 545         cpufunc_nullop,                 /* flush_brnchtgt_C     */
 546         (void *)cpufunc_nullop,         /* flush_brnchtgt_E     */
 547
 548         xscale_cpu_sleep,               /* sleep                */
 549
 550         /* Soft functions */
 551
 552         cpufunc_null_fixup,             /* dataabt_fixup        */
 553         cpufunc_null_fixup,             /* prefetchabt_fixup    */
 554
 555         xscalec3_context_switch,        /* context_switch       */
 556
 557         xscale_setup                    /* cpu setup            */
 558 };
 559 #endif /* CPU_XSCALE_81342 */
 560
 561
 562 #if defined(CPU_FA526) || defined(CPU_FA626TE)
 563 struct cpu_functions fa526_cpufuncs = {
 564         /* CPU functions */
 565
 566         cpufunc_id,                     /* id                   */
 567         cpufunc_nullop,                 /* cpwait               */
 568
 569         /* MMU functions */
 570
 571         cpufunc_control,                /* control              */
 572         cpufunc_domains,                /* domain               */
 573         fa526_setttb,                   /* setttb               */
 574         cpufunc_faultstatus,            /* faultstatus          */
 575         cpufunc_faultaddress,           /* faultaddress         */
 576
 577         /* TLB functions */
 578
 579         armv4_tlb_flushID,              /* tlb_flushID          */
 580         fa526_tlb_flushID_SE,           /* tlb_flushID_SE       */
 581         armv4_tlb_flushI,               /* tlb_flushI           */
 582         fa526_tlb_flushI_SE,            /* tlb_flushI_SE        */
 583         armv4_tlb_flushD,               /* tlb_flushD           */
 584         armv4_tlb_flushD_SE,            /* tlb_flushD_SE        */
 585
 586         /* Cache operations */
 587
 588         fa526_icache_sync_all,          /* icache_sync_all      */
 589         fa526_icache_sync_range,        /* icache_sync_range    */
 590
 591         fa526_dcache_wbinv_all,         /* dcache_wbinv_all     */
 592         fa526_dcache_wbinv_range,       /* dcache_wbinv_range   */
 593         fa526_dcache_inv_range,         /* dcache_inv_range     */
 594         fa526_dcache_wb_range,          /* dcache_wb_range      */
 595
 596         armv4_idcache_inv_all,          /* idcache_inv_all      */
 597         fa526_idcache_wbinv_all,        /* idcache_wbinv_all    */
 598         fa526_idcache_wbinv_range,      /* idcache_wbinv_range  */
 599         cpufunc_nullop,                 /* l2cache_wbinv_all    */
 600         (void *)cpufunc_nullop,         /* l2cache_wbinv_range  */
 601         (void *)cpufunc_nullop,         /* l2cache_inv_range    */
 602         (void *)cpufunc_nullop,         /* l2cache_wb_range     */
 603         (void *)cpufunc_nullop,         /* l2cache_drain_writebuf */
 604
 605         /* Other functions */
 606
 607         fa526_flush_prefetchbuf,        /* flush_prefetchbuf    */
 608         armv4_drain_writebuf,           /* drain_writebuf       */
 609         cpufunc_nullop,                 /* flush_brnchtgt_C     */
 610         fa526_flush_brnchtgt_E,         /* flush_brnchtgt_E     */
 611
 612         fa526_cpu_sleep,                /* sleep                */
 613
 614         /* Soft functions */
 615
 616         cpufunc_null_fixup,             /* dataabt_fixup        */
 617         cpufunc_null_fixup,             /* prefetchabt_fixup    */
 618
 619         fa526_context_switch,           /* context_switch       */
 620
 621         fa526_setup                     /* cpu setup            */
 622 };
 623 #endif  /* CPU_FA526 || CPU_FA626TE */
 624
 625 #if defined(CPU_ARM1136)
 626 struct cpu_functions arm1136_cpufuncs = {
 627         /* CPU functions */
 628
 629         cpufunc_id,                     /* id                   */
 630         cpufunc_nullop,                 /* cpwait               */
 631
 632         /* MMU functions */
 633
 634         cpufunc_control,                /* control              */
 635         cpufunc_domains,                /* Domain               */
 636         arm11x6_setttb,                 /* Setttb               */
 637         cpufunc_faultstatus,            /* Faultstatus          */
 638         cpufunc_faultaddress,           /* Faultaddress         */
 639
 640         /* TLB functions */
 641
 642         arm11_tlb_flushID,              /* tlb_flushID          */
 643         arm11_tlb_flushID_SE,           /* tlb_flushID_SE       */
 644         arm11_tlb_flushI,               /* tlb_flushI           */
 645         arm11_tlb_flushI_SE,            /* tlb_flushI_SE        */
 646         arm11_tlb_flushD,               /* tlb_flushD           */
 647         arm11_tlb_flushD_SE,            /* tlb_flushD_SE        */
 648
 649         /* Cache operations */
 650
 651         arm11x6_icache_sync_all,        /* icache_sync_all      */
 652         arm11x6_icache_sync_range,      /* icache_sync_range    */
 653
 654         arm11x6_dcache_wbinv_all,       /* dcache_wbinv_all     */
 655         armv6_dcache_wbinv_range,       /* dcache_wbinv_range   */
 656         armv6_dcache_inv_range,         /* dcache_inv_range     */
 657         armv6_dcache_wb_range,          /* dcache_wb_range      */
 658
 659         armv6_idcache_inv_all,          /* idcache_inv_all      */
 660         arm11x6_idcache_wbinv_all,      /* idcache_wbinv_all    */
 661         arm11x6_idcache_wbinv_range,    /* idcache_wbinv_range  */
 662
 663         (void *)cpufunc_nullop,         /* l2cache_wbinv_all    */
 664         (void *)cpufunc_nullop,         /* l2cache_wbinv_range  */
 665         (void *)cpufunc_nullop,         /* l2cache_inv_range    */
 666         (void *)cpufunc_nullop,         /* l2cache_wb_range     */
 667         (void *)cpufunc_nullop,         /* l2cache_drain_writebuf */
 668
 669         /* Other functions */
 670
 671         arm11x6_flush_prefetchbuf,      /* flush_prefetchbuf    */
 672         arm11_drain_writebuf,           /* drain_writebuf       */
 673         cpufunc_nullop,                 /* flush_brnchtgt_C     */
 674         (void *)cpufunc_nullop,         /* flush_brnchtgt_E     */
 675
 676         arm11_sleep,                    /* sleep                */
 677
 678         /* Soft functions */
 679
 680         cpufunc_null_fixup,             /* dataabt_fixup        */
 681         cpufunc_null_fixup,             /* prefetchabt_fixup    */
 682
 683         arm11_context_switch,           /* context_switch       */
 684
 685         arm11x6_setup                   /* cpu setup            */
 686 };
 687 #endif /* CPU_ARM1136 */
 688 #if defined(CPU_ARM1176)
 689 struct cpu_functions arm1176_cpufuncs = {
 690         /* CPU functions */
 691
 692         cpufunc_id,                     /* id                   */
 693         cpufunc_nullop,                 /* cpwait               */
 694
 695         /* MMU functions */
 696
 697         cpufunc_control,                /* control              */
 698         cpufunc_domains,                /* Domain               */
 699         arm11x6_setttb,                 /* Setttb               */
 700         cpufunc_faultstatus,            /* Faultstatus          */
 701         cpufunc_faultaddress,           /* Faultaddress         */
 702
 703         /* TLB functions */
 704
 705         arm11_tlb_flushID,              /* tlb_flushID          */
 706         arm11_tlb_flushID_SE,           /* tlb_flushID_SE       */
 707         arm11_tlb_flushI,               /* tlb_flushI           */
 708         arm11_tlb_flushI_SE,            /* tlb_flushI_SE        */
 709         arm11_tlb_flushD,               /* tlb_flushD           */
 710         arm11_tlb_flushD_SE,            /* tlb_flushD_SE        */
 711
 712         /* Cache operations */
 713
 714         arm11x6_icache_sync_all,        /* icache_sync_all      */
 715         arm11x6_icache_sync_range,      /* icache_sync_range    */
 716
 717         arm11x6_dcache_wbinv_all,       /* dcache_wbinv_all     */
 718         armv6_dcache_wbinv_range,       /* dcache_wbinv_range   */
 719         armv6_dcache_inv_range,         /* dcache_inv_range     */
 720         armv6_dcache_wb_range,          /* dcache_wb_range      */
 721
 722         armv6_idcache_inv_all,          /* idcache_inv_all      */
 723         arm11x6_idcache_wbinv_all,      /* idcache_wbinv_all    */
 724         arm11x6_idcache_wbinv_range,    /* idcache_wbinv_range  */
 725
 726         (void *)cpufunc_nullop,         /* l2cache_wbinv_all    */
 727         (void *)cpufunc_nullop,         /* l2cache_wbinv_range  */
 728         (void *)cpufunc_nullop,         /* l2cache_inv_range    */
 729         (void *)cpufunc_nullop,         /* l2cache_wb_range     */
 730         (void *)cpufunc_nullop,         /* l2cache_drain_writebuf */
 731
 732         /* Other functions */
 733
 734         arm11x6_flush_prefetchbuf,      /* flush_prefetchbuf    */
 735         arm11_drain_writebuf,           /* drain_writebuf       */
 736         cpufunc_nullop,                 /* flush_brnchtgt_C     */
 737         (void *)cpufunc_nullop,         /* flush_brnchtgt_E     */
 738
 739         arm11x6_sleep,                  /* sleep                */
 740
 741         /* Soft functions */
 742
 743         cpufunc_null_fixup,             /* dataabt_fixup        */
 744         cpufunc_null_fixup,             /* prefetchabt_fixup    */
 745
 746         arm11_context_switch,           /* context_switch       */
 747
 748         arm11x6_setup                   /* cpu setup            */
 749 };
 750 #endif /*CPU_ARM1176 */
 751
 752 #if defined(CPU_CORTEXA) || defined(CPU_KRAIT)
 753 struct cpu_functions cortexa_cpufuncs = {
 754         /* CPU functions */
 755
 756         cpufunc_id,                     /* id                   */
 757         cpufunc_nullop,                 /* cpwait               */
 758
 759         /* MMU functions */
 760
 761         cpufunc_control,                /* control              */
 762         cpufunc_domains,                /* Domain               */
 763         armv7_setttb,                   /* Setttb               */
 764         cpufunc_faultstatus,            /* Faultstatus          */
 765         cpufunc_faultaddress,           /* Faultaddress         */
 766
 767         /*
 768          * TLB functions.  ARMv7 does all TLB ops based on a unified TLB model
 769          * whether the hardware implements separate I+D or not, so we use the
 770          * same 'ID' functions for all 3 variations.
 771          */
 772
 773         armv7_tlb_flushID,              /* tlb_flushID          */
 774         armv7_tlb_flushID_SE,           /* tlb_flushID_SE       */
 775         armv7_tlb_flushID,              /* tlb_flushI           */
 776         armv7_tlb_flushID_SE,           /* tlb_flushI_SE        */
 777         armv7_tlb_flushID,              /* tlb_flushD           */
 778         armv7_tlb_flushID_SE,           /* tlb_flushD_SE        */
 779
 780         /* Cache operations */
 781
 782         armv7_icache_sync_all,          /* icache_sync_all      */
 783         armv7_icache_sync_range,        /* icache_sync_range    */
 784
 785         armv7_dcache_wbinv_all,         /* dcache_wbinv_all     */
 786         armv7_dcache_wbinv_range,       /* dcache_wbinv_range   */
 787         armv7_dcache_inv_range,         /* dcache_inv_range     */
 788         armv7_dcache_wb_range,          /* dcache_wb_range      */
 789
 790         armv7_idcache_inv_all,          /* idcache_inv_all      */
 791         armv7_idcache_wbinv_all,        /* idcache_wbinv_all    */
 792         armv7_idcache_wbinv_range,      /* idcache_wbinv_range  */
 793
 794         /*
 795          * Note: For CPUs using the PL310 the L2 ops are filled in when the
 796          * L2 cache controller is actually enabled.
 797          */
 798         cpufunc_nullop,                 /* l2cache_wbinv_all    */
 799         (void *)cpufunc_nullop,         /* l2cache_wbinv_range  */
 800         (void *)cpufunc_nullop,         /* l2cache_inv_range    */
 801         (void *)cpufunc_nullop,         /* l2cache_wb_range     */
 802         (void *)cpufunc_nullop,         /* l2cache_drain_writebuf */
 803
 804         /* Other functions */
 805
 806         cpufunc_nullop,                 /* flush_prefetchbuf    */
 807         armv7_drain_writebuf,           /* drain_writebuf       */
 808         cpufunc_nullop,                 /* flush_brnchtgt_C     */
 809         (void *)cpufunc_nullop,         /* flush_brnchtgt_E     */
 810
 811         armv7_sleep,                    /* sleep                */
 812
 813         /* Soft functions */
 814
 815         cpufunc_null_fixup,             /* dataabt_fixup        */
 816         cpufunc_null_fixup,             /* prefetchabt_fixup    */
 817
 818         armv7_context_switch,           /* context_switch       */
 819
 820         cortexa_setup                     /* cpu setup            */
 821 };
 822 #endif /* CPU_CORTEXA */
 823
 824 /*
 825  * Global constants also used by locore.s
 826  */
 827
 828 struct cpu_functions cpufuncs;
 829 u_int cputype;
 830 u_int cpu_reset_needs_v4_MMU_disable;   /* flag used in locore.s */
 831
 832 #if defined(CPU_ARM9) ||        \
 833   defined (CPU_ARM9E) || defined (CPU_ARM10) || defined (CPU_ARM1136) ||        \
 834   defined(CPU_ARM1176) || defined(CPU_XSCALE_80200) || defined(CPU_XSCALE_80321) ||             \
 835   defined(CPU_XSCALE_PXA2X0) || defined(CPU_XSCALE_IXP425) ||           \
 836   defined(CPU_FA526) || defined(CPU_FA626TE) || defined(CPU_MV_PJ4B) ||                 \
 837   defined(CPU_XSCALE_80219) || defined(CPU_XSCALE_81342) || \
 838   defined(CPU_CORTEXA) || defined(CPU_KRAIT)
 839
 840 static void get_cachetype_cp15(void);
 841
 842 /* Additional cache information local to this file.  Log2 of some of the
 843    above numbers.  */
 844 static int      arm_dcache_l2_nsets;
 845 static int      arm_dcache_l2_assoc;
 846 static int      arm_dcache_l2_linesize;
 847
 848 static void
 849 get_cachetype_cp15()
 850 {
 851         u_int ctype, isize, dsize, cpuid;
 852         u_int clevel, csize, i, sel;
 853         u_int multiplier;
 854         u_char type;
 855
 856         __asm __volatile("mrc p15, 0, %0, c0, c0, 1"
 857                 : "=r" (ctype));
 858
 859         cpuid = cpufunc_id();
 860         /*
 861          * ...and thus spake the ARM ARM:
 862          *
 863          * If an <opcode2> value corresponding to an unimplemented or
 864          * reserved ID register is encountered, the System Control
 865          * processor returns the value of the main ID register.
 866          */
 867         if (ctype == cpuid)
 868                 goto out;
 869
 870         if (CPU_CT_FORMAT(ctype) == CPU_CT_ARMV7) {
 871                 __asm __volatile("mrc p15, 1, %0, c0, c0, 1"
 872                     : "=r" (clevel));
 873                 arm_cache_level = clevel;
 874                 arm_cache_loc = CPU_CLIDR_LOC(arm_cache_level);
 875                 i = 0;
 876                 while ((type = (clevel & 0x7)) && i < 7) {
 877                         if (type == CACHE_DCACHE || type == CACHE_UNI_CACHE ||
 878                             type == CACHE_SEP_CACHE) {
 879                                 sel = i << 1;
 880                                 __asm __volatile("mcr p15, 2, %0, c0, c0, 0"
 881                                     : : "r" (sel));
 882                                 __asm __volatile("mrc p15, 1, %0, c0, c0, 0"
 883                                     : "=r" (csize));
 884                                 arm_cache_type[sel] = csize;
 885                                 arm_dcache_align = 1 <<
 886                                     (CPUV7_CT_xSIZE_LEN(csize) + 4);
 887                                 arm_dcache_align_mask = arm_dcache_align - 1;
 888                         }
 889                         if (type == CACHE_ICACHE || type == CACHE_SEP_CACHE) {
 890                                 sel = (i << 1) | 1;
 891                                 __asm __volatile("mcr p15, 2, %0, c0, c0, 0"
 892                                     : : "r" (sel));
 893                                 __asm __volatile("mrc p15, 1, %0, c0, c0, 0"
 894                                     : "=r" (csize));
 895                                 arm_cache_type[sel] = csize;
 896                         }
 897                         i++;
 898                         clevel >>= 3;
 899                 }
 900         } else {
 901                 if ((ctype & CPU_CT_S) == 0)
 902                         arm_pcache_unified = 1;
 903
 904                 /*
 905                  * If you want to know how this code works, go read the ARM ARM.
 906                  */
 907
 908                 arm_pcache_type = CPU_CT_CTYPE(ctype);
 909
 910                 if (arm_pcache_unified == 0) {
 911                         isize = CPU_CT_ISIZE(ctype);
 912                         multiplier = (isize & CPU_CT_xSIZE_M) ? 3 : 2;
 913                         arm_picache_line_size = 1U << (CPU_CT_xSIZE_LEN(isize) + 3);
 914                         if (CPU_CT_xSIZE_ASSOC(isize) == 0) {
 915                                 if (isize & CPU_CT_xSIZE_M)
 916                                         arm_picache_line_size = 0; /* not present */
 917                                 else
 918                                         arm_picache_ways = 1;
 919                         } else {
 920                                 arm_picache_ways = multiplier <<
 921                                     (CPU_CT_xSIZE_ASSOC(isize) - 1);
 922                         }
 923                         arm_picache_size = multiplier << (CPU_CT_xSIZE_SIZE(isize) + 8);
 924                 }
 925
 926                 dsize = CPU_CT_DSIZE(ctype);
 927                 multiplier = (dsize & CPU_CT_xSIZE_M) ? 3 : 2;
 928                 arm_pdcache_line_size = 1U << (CPU_CT_xSIZE_LEN(dsize) + 3);
 929                 if (CPU_CT_xSIZE_ASSOC(dsize) == 0) {
 930                         if (dsize & CPU_CT_xSIZE_M)
 931                                 arm_pdcache_line_size = 0; /* not present */
 932                         else
 933                                 arm_pdcache_ways = 1;
 934                 } else {
 935                         arm_pdcache_ways = multiplier <<
 936                             (CPU_CT_xSIZE_ASSOC(dsize) - 1);
 937                 }
 938                 arm_pdcache_size = multiplier << (CPU_CT_xSIZE_SIZE(dsize) + 8);
 939
 940                 arm_dcache_align = arm_pdcache_line_size;
 941
 942                 arm_dcache_l2_assoc = CPU_CT_xSIZE_ASSOC(dsize) + multiplier - 2;
 943                 arm_dcache_l2_linesize = CPU_CT_xSIZE_LEN(dsize) + 3;
 944                 arm_dcache_l2_nsets = 6 + CPU_CT_xSIZE_SIZE(dsize) -
 945                     CPU_CT_xSIZE_ASSOC(dsize) - CPU_CT_xSIZE_LEN(dsize);
 946
 947         out:
 948                 arm_dcache_align_mask = arm_dcache_align - 1;
 949         }
 950 }
 951 #endif /* ARM9 || XSCALE */
 952
 953 /*
 954  * Cannot panic here as we may not have a console yet ...
 955  */
 956
 957 int
 958 set_cpufuncs()
 959 {
 960         cputype = cpufunc_id();
 961         cputype &= CPU_ID_CPU_MASK;
 962
 963         /*
 964          * NOTE: cpu_do_powersave defaults to off.  If we encounter a
 965          * CPU type where we want to use it by default, then we set it.
 966          */
 967
 968 #ifdef CPU_ARM9
 969         if (((cputype & CPU_ID_IMPLEMENTOR_MASK) == CPU_ID_ARM_LTD ||
 970              (cputype & CPU_ID_IMPLEMENTOR_MASK) == CPU_ID_TI) &&
 971             (cputype & 0x0000f000) == 0x00009000) {
 972                 cpufuncs = arm9_cpufuncs;
 973                 cpu_reset_needs_v4_MMU_disable = 1;     /* V4 or higher */
 974                 get_cachetype_cp15();
 975                 arm9_dcache_sets_inc = 1U << arm_dcache_l2_linesize;
 976                 arm9_dcache_sets_max = (1U << (arm_dcache_l2_linesize +
 977                     arm_dcache_l2_nsets)) - arm9_dcache_sets_inc;
 978                 arm9_dcache_index_inc = 1U << (32 - arm_dcache_l2_assoc);
 979                 arm9_dcache_index_max = 0U - arm9_dcache_index_inc;
 980 #ifdef ARM9_CACHE_WRITE_THROUGH
 981                 pmap_pte_init_arm9();
 982 #else
 983                 pmap_pte_init_generic();
 984 #endif
 985                 goto out;
 986         }
 987 #endif /* CPU_ARM9 */
 988 #if defined(CPU_ARM9E) || defined(CPU_ARM10)
 989         if (cputype == CPU_ID_MV88FR131 || cputype == CPU_ID_MV88FR571_VD ||
 990             cputype == CPU_ID_MV88FR571_41) {
 991                 uint32_t sheeva_ctrl;
 992
 993                 sheeva_ctrl = (MV_DC_STREAM_ENABLE | MV_BTB_DISABLE |
 994                     MV_L2_ENABLE);
 995                 /*
 996                  * Workaround for Marvell MV78100 CPU: Cache prefetch
 997                  * mechanism may affect the cache coherency validity,
 998                  * so it needs to be disabled.
 999                  *
1000                  * Refer to errata document MV-S501058-00C.pdf (p. 3.1
1001                  * L2 Prefetching Mechanism) for details.
1002                  */
1003                 if (cputype == CPU_ID_MV88FR571_VD ||
1004                     cputype == CPU_ID_MV88FR571_41)
1005                         sheeva_ctrl |= MV_L2_PREFETCH_DISABLE;
1006
1007                 sheeva_control_ext(0xffffffff & ~MV_WA_ENABLE, sheeva_ctrl);
1008
1009                 cpufuncs = sheeva_cpufuncs;
1010                 get_cachetype_cp15();
1011                 pmap_pte_init_generic();
1012                 goto out;
1013         } else if (cputype == CPU_ID_ARM926EJS || cputype == CPU_ID_ARM1026EJS) {
1014                 cpufuncs = armv5_ec_cpufuncs;
1015                 get_cachetype_cp15();
1016                 pmap_pte_init_generic();
1017                 goto out;
1018         }
1019 #endif /* CPU_ARM9E || CPU_ARM10 */
1020 #ifdef CPU_ARM10
1021         if (/* cputype == CPU_ID_ARM1020T || */
1022             cputype == CPU_ID_ARM1020E) {
1023                 /*
1024                  * Select write-through cacheing (this isn't really an
1025                  * option on ARM1020T).
1026                  */
1027                 cpufuncs = arm10_cpufuncs;
1028                 cpu_reset_needs_v4_MMU_disable = 1;     /* V4 or higher */
1029                 get_cachetype_cp15();
1030                 arm10_dcache_sets_inc = 1U << arm_dcache_l2_linesize;
1031                 arm10_dcache_sets_max =
1032                     (1U << (arm_dcache_l2_linesize + arm_dcache_l2_nsets)) -
1033                     arm10_dcache_sets_inc;
1034                 arm10_dcache_index_inc = 1U << (32 - arm_dcache_l2_assoc);
1035                 arm10_dcache_index_max = 0U - arm10_dcache_index_inc;
1036                 pmap_pte_init_generic();
1037                 goto out;
1038         }
1039 #endif /* CPU_ARM10 */
1040 #if defined(CPU_ARM1136) || defined(CPU_ARM1176)
1041         if (cputype == CPU_ID_ARM1136JS
1042             || cputype == CPU_ID_ARM1136JSR1
1043             || cputype == CPU_ID_ARM1176JZS) {
1044 #ifdef CPU_ARM1136
1045                 if (cputype == CPU_ID_ARM1136JS
1046                     || cputype == CPU_ID_ARM1136JSR1)
1047                         cpufuncs = arm1136_cpufuncs;
1048 #endif
1049 #ifdef CPU_ARM1176
1050                 if (cputype == CPU_ID_ARM1176JZS)
1051                         cpufuncs = arm1176_cpufuncs;
1052 #endif
1053                 cpu_reset_needs_v4_MMU_disable = 1;     /* V4 or higher */
1054                 get_cachetype_cp15();
1055
1056                 pmap_pte_init_mmu_v6();
1057
1058                 goto out;
1059         }
1060 #endif /* CPU_ARM1136 || CPU_ARM1176 */
1061 #if defined(CPU_CORTEXA) || defined(CPU_KRAIT)
1062         if (cputype == CPU_ID_CORTEXA7 ||
1063             cputype == CPU_ID_CORTEXA8R1 ||
1064             cputype == CPU_ID_CORTEXA8R2 ||
1065             cputype == CPU_ID_CORTEXA8R3 ||
1066             cputype == CPU_ID_CORTEXA9R1 ||
1067             cputype == CPU_ID_CORTEXA9R2 ||
1068             cputype == CPU_ID_CORTEXA9R3 ||
1069             cputype == CPU_ID_CORTEXA15R0 ||
1070             cputype == CPU_ID_CORTEXA15R1 ||
1071             cputype == CPU_ID_CORTEXA15R2 ||
1072             cputype == CPU_ID_CORTEXA15R3 ||
1073             cputype == CPU_ID_KRAIT ) {
1074                 cpufuncs = cortexa_cpufuncs;
1075                 cpu_reset_needs_v4_MMU_disable = 1;     /* V4 or higher */
1076                 get_cachetype_cp15();
1077
1078                 pmap_pte_init_mmu_v6();
1079                 /* Use powersave on this CPU. */
1080                 cpu_do_powersave = 1;
1081                 goto out;
1082         }
1083 #endif /* CPU_CORTEXA */
1084
1085 #if defined(CPU_MV_PJ4B)
1086         if (cputype == CPU_ID_MV88SV581X_V7 ||
1087             cputype == CPU_ID_MV88SV584X_V7 ||
1088             cputype == CPU_ID_ARM_88SV581X_V7) {
1089                 cpufuncs = pj4bv7_cpufuncs;
1090                 get_cachetype_cp15();
1091                 pmap_pte_init_mmu_v6();
1092                 goto out;
1093         }
1094 #endif /* CPU_MV_PJ4B */
1095
1096 #if defined(CPU_FA526) || defined(CPU_FA626TE)
1097         if (cputype == CPU_ID_FA526 || cputype == CPU_ID_FA626TE) {
1098                 cpufuncs = fa526_cpufuncs;
1099                 cpu_reset_needs_v4_MMU_disable = 1;     /* SA needs it  */
1100                 get_cachetype_cp15();
1101                 pmap_pte_init_generic();
1102
1103                 /* Use powersave on this CPU. */
1104                 cpu_do_powersave = 1;
1105
1106                 goto out;
1107         }
1108 #endif  /* CPU_FA526 || CPU_FA626TE */
1109
1110 #ifdef CPU_XSCALE_80200
1111         if (cputype == CPU_ID_80200) {
1112                 int rev = cpufunc_id() & CPU_ID_REVISION_MASK;
1113
1114                 i80200_icu_init();
1115
1116 #if defined(XSCALE_CCLKCFG)
1117                 /*
1118                  * Crank CCLKCFG to maximum legal value.
1119                  */
1120                 __asm __volatile ("mcr p14, 0, %0, c6, c0, 0"
1121                         :
1122                         : "r" (XSCALE_CCLKCFG));
1123 #endif
1124
1125                 /*
1126                  * XXX Disable ECC in the Bus Controller Unit; we
1127                  * don't really support it, yet.  Clear any pending
1128                  * error indications.
1129                  */
1130                 __asm __volatile("mcr p13, 0, %0, c0, c1, 0"
1131                         :
1132                         : "r" (BCUCTL_E0|BCUCTL_E1|BCUCTL_EV));
1133
1134                 cpufuncs = xscale_cpufuncs;
1135                 /*
1136                  * i80200 errata: Step-A0 and A1 have a bug where
1137                  * D$ dirty bits are not cleared on "invalidate by
1138                  * address".
1139                  *
1140                  * Workaround: Clean cache line before invalidating.
1141                  */
1142                 if (rev == 0 || rev == 1)
1143                         cpufuncs.cf_dcache_inv_range = xscale_cache_purgeD_rng;
1144
1145                 cpu_reset_needs_v4_MMU_disable = 1;     /* XScale needs it */
1146                 get_cachetype_cp15();
1147                 pmap_pte_init_xscale();
1148                 goto out;
1149         }
1150 #endif /* CPU_XSCALE_80200 */
1151 #if defined(CPU_XSCALE_80321) || defined(CPU_XSCALE_80219)
1152         if (cputype == CPU_ID_80321_400 || cputype == CPU_ID_80321_600 ||
1153             cputype == CPU_ID_80321_400_B0 || cputype == CPU_ID_80321_600_B0 ||
1154             cputype == CPU_ID_80219_400 || cputype == CPU_ID_80219_600) {
1155                 cpufuncs = xscale_cpufuncs;
1156                 cpu_reset_needs_v4_MMU_disable = 1;     /* XScale needs it */
1157                 get_cachetype_cp15();
1158                 pmap_pte_init_xscale();
1159                 goto out;
1160         }
1161 #endif /* CPU_XSCALE_80321 */
1162
1163 #if defined(CPU_XSCALE_81342)
1164         if (cputype == CPU_ID_81342) {
1165                 cpufuncs = xscalec3_cpufuncs;
1166                 cpu_reset_needs_v4_MMU_disable = 1;     /* XScale needs it */
1167                 get_cachetype_cp15();
1168                 pmap_pte_init_xscale();
1169                 goto out;
1170         }
1171 #endif /* CPU_XSCALE_81342 */
1172 #ifdef CPU_XSCALE_PXA2X0
1173         /* ignore core revision to test PXA2xx CPUs */
1174         if ((cputype & ~CPU_ID_XSCALE_COREREV_MASK) == CPU_ID_PXA250 ||
1175             (cputype & ~CPU_ID_XSCALE_COREREV_MASK) == CPU_ID_PXA27X ||
1176             (cputype & ~CPU_ID_XSCALE_COREREV_MASK) == CPU_ID_PXA210) {
1177
1178                 cpufuncs = xscale_cpufuncs;
1179                 cpu_reset_needs_v4_MMU_disable = 1;     /* XScale needs it */
1180                 get_cachetype_cp15();
1181                 pmap_pte_init_xscale();
1182
1183                 /* Use powersave on this CPU. */
1184                 cpu_do_powersave = 1;
1185
1186                 goto out;
1187         }
1188 #endif /* CPU_XSCALE_PXA2X0 */
1189 #ifdef CPU_XSCALE_IXP425
1190         if (cputype == CPU_ID_IXP425_533 || cputype == CPU_ID_IXP425_400 ||
1191             cputype == CPU_ID_IXP425_266 || cputype == CPU_ID_IXP435) {
1192
1193                 cpufuncs = xscale_cpufuncs;
1194                 cpu_reset_needs_v4_MMU_disable = 1;     /* XScale needs it */
1195                 get_cachetype_cp15();
1196                 pmap_pte_init_xscale();
1197
1198                 goto out;
1199         }
1200 #endif /* CPU_XSCALE_IXP425 */
1201         /*
1202          * Bzzzz. And the answer was ...
1203          */
1204         panic("No support for this CPU type (%08x) in kernel", cputype);
1205         return(ARCHITECTURE_NOT_PRESENT);
1206 out:
1207         uma_set_align(arm_dcache_align_mask);
1208         return (0);
1209 }
1210
1211 /*
1212  * Fixup routines for data and prefetch aborts.
1213  *
1214  * Several compile time symbols are used
1215  *
1216  * DEBUG_FAULT_CORRECTION - Print debugging information during the
1217  * correction of registers after a fault.
1218  */
1219
1220
1221 /*
1222  * Null abort fixup routine.
1223  * For use when no fixup is required.
1224  */
1225 int
1226 cpufunc_null_fixup(arg)
1227         void *arg;
1228 {
1229         return(ABORT_FIXUP_OK);
1230 }
1231
1232 /*
1233  * CPU Setup code
1234  */
1235
1236 #if defined (CPU_ARM9) || \
1237   defined(CPU_ARM9E) || \
1238   defined(CPU_XSCALE_80200) || defined(CPU_XSCALE_80321) ||             \
1239   defined(CPU_XSCALE_PXA2X0) || defined(CPU_XSCALE_IXP425) ||           \
1240   defined(CPU_XSCALE_80219) || defined(CPU_XSCALE_81342) || \
1241   defined(CPU_ARM10) ||  defined(CPU_ARM1136) || defined(CPU_ARM1176) ||\
1242   defined(CPU_FA526) || defined(CPU_FA626TE)
1243
1244 #define IGN     0
1245 #define OR      1
1246 #define BIC     2
1247
1248 struct cpu_option {
1249         char    *co_name;
1250         int     co_falseop;
1251         int     co_trueop;
1252         int     co_value;
1253 };
1254
1255 static u_int parse_cpu_options(char *, struct cpu_option *, u_int);
1256
1257 static u_int
1258 parse_cpu_options(args, optlist, cpuctrl)
1259         char *args;
1260         struct cpu_option *optlist;
1261         u_int cpuctrl;
1262 {
1263         int integer;
1264
1265         if (args == NULL)
1266                 return(cpuctrl);
1267
1268         while (optlist->co_name) {
1269                 if (get_bootconf_option(args, optlist->co_name,
1270                     BOOTOPT_TYPE_BOOLEAN, &integer)) {
1271                         if (integer) {
1272                                 if (optlist->co_trueop == OR)
1273                                         cpuctrl |= optlist->co_value;
1274                                 else if (optlist->co_trueop == BIC)
1275                                         cpuctrl &= ~optlist->co_value;
1276                         } else {
1277                                 if (optlist->co_falseop == OR)
1278                                         cpuctrl |= optlist->co_value;
1279                                 else if (optlist->co_falseop == BIC)
1280                                         cpuctrl &= ~optlist->co_value;
1281                         }
1282                 }
1283                 ++optlist;
1284         }
1285         return(cpuctrl);
1286 }
1287 #endif /* CPU_ARM9 || XSCALE*/
1288
1289 #ifdef CPU_ARM9
1290 struct cpu_option arm9_options[] = {
1291         { "cpu.cache",          BIC, OR,  (CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE) },
1292         { "cpu.nocache",        OR,  BIC, (CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE) },
1293         { "arm9.cache", BIC, OR,  (CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE) },
1294         { "arm9.icache",        BIC, OR,  CPU_CONTROL_IC_ENABLE },
1295         { "arm9.dcache",        BIC, OR,  CPU_CONTROL_DC_ENABLE },
1296         { "cpu.writebuf",       BIC, OR,  CPU_CONTROL_WBUF_ENABLE },
1297         { "cpu.nowritebuf",     OR,  BIC, CPU_CONTROL_WBUF_ENABLE },
1298         { "arm9.writebuf",      BIC, OR,  CPU_CONTROL_WBUF_ENABLE },
1299         { NULL,                 IGN, IGN, 0 }
1300 };
1301
1302 void
1303 arm9_setup(args)
1304         char *args;
1305 {
1306         int cpuctrl, cpuctrlmask;
1307
1308         cpuctrl = CPU_CONTROL_MMU_ENABLE | CPU_CONTROL_32BP_ENABLE
1309             | CPU_CONTROL_32BD_ENABLE | CPU_CONTROL_SYST_ENABLE
1310             | CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE
1311             | CPU_CONTROL_WBUF_ENABLE | CPU_CONTROL_LABT_ENABLE |
1312             CPU_CONTROL_ROUNDROBIN;
1313         cpuctrlmask = CPU_CONTROL_MMU_ENABLE | CPU_CONTROL_32BP_ENABLE
1314                  | CPU_CONTROL_32BD_ENABLE | CPU_CONTROL_SYST_ENABLE
1315                  | CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE
1316                  | CPU_CONTROL_WBUF_ENABLE | CPU_CONTROL_ROM_ENABLE
1317                  | CPU_CONTROL_BEND_ENABLE | CPU_CONTROL_AFLT_ENABLE
1318                  | CPU_CONTROL_LABT_ENABLE | CPU_CONTROL_VECRELOC
1319                  | CPU_CONTROL_ROUNDROBIN;
1320
1321 #ifndef ARM32_DISABLE_ALIGNMENT_FAULTS
1322         cpuctrl |= CPU_CONTROL_AFLT_ENABLE;
1323 #endif
1324
1325         cpuctrl = parse_cpu_options(args, arm9_options, cpuctrl);
1326
1327 #ifdef __ARMEB__
1328         cpuctrl |= CPU_CONTROL_BEND_ENABLE;
1329 #endif
1330         if (vector_page == ARM_VECTORS_HIGH)
1331                 cpuctrl |= CPU_CONTROL_VECRELOC;
1332
1333         /* Clear out the cache */
1334         cpu_idcache_wbinv_all();
1335
1336         /* Set the control register */
1337         cpu_control(cpuctrlmask, cpuctrl);
1338         ctrl = cpuctrl;
1339
1340 }
1341 #endif  /* CPU_ARM9 */
1342
1343 #if defined(CPU_ARM9E) || defined(CPU_ARM10)
1344 struct cpu_option arm10_options[] = {
1345         { "cpu.cache",          BIC, OR,  (CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE) },
1346         { "cpu.nocache",        OR,  BIC, (CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE) },
1347         { "arm10.cache",        BIC, OR,  (CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE) },
1348         { "arm10.icache",       BIC, OR,  CPU_CONTROL_IC_ENABLE },
1349         { "arm10.dcache",       BIC, OR,  CPU_CONTROL_DC_ENABLE },
1350         { "cpu.writebuf",       BIC, OR,  CPU_CONTROL_WBUF_ENABLE },
1351         { "cpu.nowritebuf",     OR,  BIC, CPU_CONTROL_WBUF_ENABLE },
1352         { "arm10.writebuf",     BIC, OR,  CPU_CONTROL_WBUF_ENABLE },
1353         { NULL,                 IGN, IGN, 0 }
1354 };
1355
1356 void
1357 arm10_setup(args)
1358         char *args;
1359 {
1360         int cpuctrl, cpuctrlmask;
1361
1362         cpuctrl = CPU_CONTROL_MMU_ENABLE | CPU_CONTROL_SYST_ENABLE
1363             | CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE
1364             | CPU_CONTROL_WBUF_ENABLE | CPU_CONTROL_BPRD_ENABLE;
1365         cpuctrlmask = CPU_CONTROL_MMU_ENABLE | CPU_CONTROL_SYST_ENABLE
1366             | CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE
1367             | CPU_CONTROL_WBUF_ENABLE | CPU_CONTROL_ROM_ENABLE
1368             | CPU_CONTROL_BEND_ENABLE | CPU_CONTROL_AFLT_ENABLE
1369             | CPU_CONTROL_BPRD_ENABLE
1370             | CPU_CONTROL_ROUNDROBIN | CPU_CONTROL_CPCLK;
1371
1372 #ifndef ARM32_DISABLE_ALIGNMENT_FAULTS
1373         cpuctrl |= CPU_CONTROL_AFLT_ENABLE;
1374 #endif
1375
1376         cpuctrl = parse_cpu_options(args, arm10_options, cpuctrl);
1377
1378 #ifdef __ARMEB__
1379         cpuctrl |= CPU_CONTROL_BEND_ENABLE;
1380 #endif
1381
1382         /* Clear out the cache */
1383         cpu_idcache_wbinv_all();
1384
1385         /* Now really make sure they are clean.  */
1386         __asm __volatile ("mcr\tp15, 0, r0, c7, c7, 0" : : );
1387
1388         if (vector_page == ARM_VECTORS_HIGH)
1389                 cpuctrl |= CPU_CONTROL_VECRELOC;
1390
1391         /* Set the control register */
1392         ctrl = cpuctrl;
1393         cpu_control(0xffffffff, cpuctrl);
1394
1395         /* And again. */
1396         cpu_idcache_wbinv_all();
1397 }
1398 #endif  /* CPU_ARM9E || CPU_ARM10 */
1399
1400 #if defined(CPU_ARM1136) || defined(CPU_ARM1176)
1401 struct cpu_option arm11_options[] = {
1402         { "cpu.cache",          BIC, OR,  (CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE) },
1403         { "cpu.nocache",        OR,  BIC, (CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE) },
1404         { "arm11.cache",        BIC, OR,  (CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE) },
1405         { "arm11.icache",       BIC, OR,  CPU_CONTROL_IC_ENABLE },
1406         { "arm11.dcache",       BIC, OR,  CPU_CONTROL_DC_ENABLE },
1407         { NULL,                 IGN, IGN, 0 }
1408 };
1409
1410 void
1411 arm11x6_setup(char *args)
1412 {
1413         int cpuctrl, cpuctrl_wax;
1414         uint32_t auxctrl, auxctrl_wax;
1415         uint32_t tmp, tmp2;
1416         uint32_t sbz=0;
1417         uint32_t cpuid;
1418
1419         cpuid = cpufunc_id();
1420
1421         cpuctrl =
1422                 CPU_CONTROL_MMU_ENABLE  |
1423                 CPU_CONTROL_DC_ENABLE   |
1424                 CPU_CONTROL_WBUF_ENABLE |
1425                 CPU_CONTROL_32BP_ENABLE |
1426                 CPU_CONTROL_32BD_ENABLE |
1427                 CPU_CONTROL_LABT_ENABLE |
1428                 CPU_CONTROL_SYST_ENABLE |
1429                 CPU_CONTROL_IC_ENABLE;
1430
1431         /*
1432          * "write as existing" bits
1433          * inverse of this is mask
1434          */
1435         cpuctrl_wax =
1436                 (3 << 30) | /* SBZ */
1437                 (1 << 29) | /* FA */
1438                 (1 << 28) | /* TR */
1439                 (3 << 26) | /* SBZ */
1440                 (3 << 19) | /* SBZ */
1441                 (1 << 17);  /* SBZ */
1442
1443         cpuctrl |= CPU_CONTROL_BPRD_ENABLE;
1444         cpuctrl |= CPU_CONTROL_V6_EXTPAGE;
1445
1446         cpuctrl = parse_cpu_options(args, arm11_options, cpuctrl);
1447
1448 #ifdef __ARMEB__
1449         cpuctrl |= CPU_CONTROL_BEND_ENABLE;
1450 #endif
1451
1452         if (vector_page == ARM_VECTORS_HIGH)
1453                 cpuctrl |= CPU_CONTROL_VECRELOC;
1454
1455         auxctrl = 0;
1456         auxctrl_wax = ~0;
1457         /*
1458          * This options enables the workaround for the 364296 ARM1136
1459          * r0pX errata (possible cache data corruption with
1460          * hit-under-miss enabled). It sets the undocumented bit 31 in
1461          * the auxiliary control register and the FI bit in the control
1462          * register, thus disabling hit-under-miss without putting the
1463          * processor into full low interrupt latency mode. ARM11MPCore
1464          * is not affected.
1465          */
1466         if ((cpuid & CPU_ID_CPU_MASK) == CPU_ID_ARM1136JS) { /* ARM1136JSr0pX */
1467                 cpuctrl |= CPU_CONTROL_FI_ENABLE;
1468                 auxctrl = ARM1136_AUXCTL_PFI;
1469                 auxctrl_wax = ~ARM1136_AUXCTL_PFI;
1470         }
1471
1472         /*
1473          * Enable an errata workaround
1474          */
1475         if ((cpuid & CPU_ID_CPU_MASK) == CPU_ID_ARM1176JZS) { /* ARM1176JZSr0 */
1476                 auxctrl = ARM1176_AUXCTL_PHD;
1477                 auxctrl_wax = ~ARM1176_AUXCTL_PHD;
1478         }
1479
1480         /* Clear out the cache */
1481         cpu_idcache_wbinv_all();
1482
1483         /* Now really make sure they are clean.  */
1484         __asm volatile ("mcr\tp15, 0, %0, c7, c7, 0" : : "r"(sbz));
1485
1486         /* Allow detection code to find the VFP if it's fitted.  */
1487         __asm volatile ("mcr\tp15, 0, %0, c1, c0, 2" : : "r" (0x0fffffff));
1488
1489         /* Set the control register */
1490         ctrl = cpuctrl;
1491         cpu_control(~cpuctrl_wax, cpuctrl);
1492
1493         __asm volatile ("mrc    p15, 0, %0, c1, c0, 1\n\t"
1494                         "and    %1, %0, %2\n\t"
1495                         "orr    %1, %1, %3\n\t"
1496                         "teq    %0, %1\n\t"
1497                         "mcrne  p15, 0, %1, c1, c0, 1\n\t"
1498                         : "=r"(tmp), "=r"(tmp2) :
1499                           "r"(auxctrl_wax), "r"(auxctrl));
1500
1501         /* And again. */
1502         cpu_idcache_wbinv_all();
1503 }
1504 #endif  /* CPU_ARM1136 || CPU_ARM1176 */
1505
1506 #ifdef CPU_MV_PJ4B
1507 void
1508 pj4bv7_setup(args)
1509         char *args;
1510 {
1511         int cpuctrl;
1512
1513         pj4b_config();
1514
1515         cpuctrl = CPU_CONTROL_MMU_ENABLE;
1516 #ifndef ARM32_DISABLE_ALIGNMENT_FAULTS
1517         cpuctrl |= CPU_CONTROL_AFLT_ENABLE;
1518 #endif
1519         cpuctrl |= CPU_CONTROL_DC_ENABLE;
1520         cpuctrl |= (0xf << 3);
1521         cpuctrl |= CPU_CONTROL_BPRD_ENABLE;
1522         cpuctrl |= CPU_CONTROL_IC_ENABLE;
1523         if (vector_page == ARM_VECTORS_HIGH)
1524                 cpuctrl |= CPU_CONTROL_VECRELOC;
1525         cpuctrl |= (0x5 << 16) | (1 < 22);
1526         cpuctrl |= CPU_CONTROL_V6_EXTPAGE;
1527
1528         /* Clear out the cache */
1529         cpu_idcache_wbinv_all();
1530
1531         /* Set the control register */
1532         ctrl = cpuctrl;
1533         cpu_control(0xFFFFFFFF, cpuctrl);
1534
1535         /* And again. */
1536         cpu_idcache_wbinv_all();
1537 }
1538 #endif /* CPU_MV_PJ4B */
1539
1540 #if defined(CPU_CORTEXA) || defined(CPU_KRAIT)
1541
1542 void
1543 cortexa_setup(char *args)
1544 {
1545         int cpuctrl, cpuctrlmask;
1546
1547         cpuctrlmask = CPU_CONTROL_MMU_ENABLE |     /* MMU enable         [0] */
1548             CPU_CONTROL_AFLT_ENABLE |    /* Alignment fault    [1] */
1549             CPU_CONTROL_DC_ENABLE |      /* DCache enable      [2] */
1550             CPU_CONTROL_BPRD_ENABLE |    /* Branch prediction [11] */
1551             CPU_CONTROL_IC_ENABLE |      /* ICache enable     [12] */
1552             CPU_CONTROL_VECRELOC;        /* Vector relocation [13] */
1553
1554         cpuctrl = CPU_CONTROL_MMU_ENABLE |
1555             CPU_CONTROL_IC_ENABLE |
1556             CPU_CONTROL_DC_ENABLE |
1557             CPU_CONTROL_BPRD_ENABLE;
1558
1559 #ifndef ARM32_DISABLE_ALIGNMENT_FAULTS
1560         cpuctrl |= CPU_CONTROL_AFLT_ENABLE;
1561 #endif
1562
1563         /* Switch to big endian */
1564 #ifdef __ARMEB__
1565         cpuctrl |= CPU_CONTROL_BEND_ENABLE;
1566 #endif
1567
1568         /* Check if the vector page is at the high address (0xffff0000) */
1569         if (vector_page == ARM_VECTORS_HIGH)
1570                 cpuctrl |= CPU_CONTROL_VECRELOC;
1571
1572         /* Clear out the cache */
1573         cpu_idcache_wbinv_all();
1574
1575         /* Set the control register */
1576         ctrl = cpuctrl;
1577         cpu_control(cpuctrlmask, cpuctrl);
1578
1579         /* And again. */
1580         cpu_idcache_wbinv_all();
1581 #ifdef SMP
1582         armv7_auxctrl((1 << 6) | (1 << 0), (1 << 6) | (1 << 0)); /* Enable SMP + TLB broadcasting  */
1583 #endif
1584 }
1585 #endif  /* CPU_CORTEXA */
1586
1587 #if defined(CPU_FA526) || defined(CPU_FA626TE)
1588 struct cpu_option fa526_options[] = {
1589 #ifdef COMPAT_12
1590         { "nocache",            IGN, BIC, (CPU_CONTROL_IC_ENABLE |
1591                                            CPU_CONTROL_DC_ENABLE) },
1592         { "nowritebuf",         IGN, BIC, CPU_CONTROL_WBUF_ENABLE },
1593 #endif  /* COMPAT_12 */
1594         { "cpu.cache",          BIC, OR,  (CPU_CONTROL_IC_ENABLE |
1595                                            CPU_CONTROL_DC_ENABLE) },
1596         { "cpu.nocache",        OR,  BIC, (CPU_CONTROL_IC_ENABLE |
1597                                            CPU_CONTROL_DC_ENABLE) },
1598         { "cpu.writebuf",       BIC, OR,  CPU_CONTROL_WBUF_ENABLE },
1599         { "cpu.nowritebuf",     OR,  BIC, CPU_CONTROL_WBUF_ENABLE },
1600         { NULL,                 IGN, IGN, 0 }
1601 };
1602
1603 void
1604 fa526_setup(char *args)
1605 {
1606         int cpuctrl, cpuctrlmask;
1607
1608         cpuctrl = CPU_CONTROL_MMU_ENABLE | CPU_CONTROL_32BP_ENABLE
1609                  | CPU_CONTROL_32BD_ENABLE | CPU_CONTROL_SYST_ENABLE
1610                  | CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE
1611                  | CPU_CONTROL_WBUF_ENABLE | CPU_CONTROL_LABT_ENABLE
1612                 | CPU_CONTROL_BPRD_ENABLE;
1613         cpuctrlmask = CPU_CONTROL_MMU_ENABLE | CPU_CONTROL_32BP_ENABLE
1614                  | CPU_CONTROL_32BD_ENABLE | CPU_CONTROL_SYST_ENABLE
1615                  | CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE
1616                  | CPU_CONTROL_WBUF_ENABLE | CPU_CONTROL_ROM_ENABLE
1617                  | CPU_CONTROL_BEND_ENABLE | CPU_CONTROL_AFLT_ENABLE
1618                  | CPU_CONTROL_LABT_ENABLE | CPU_CONTROL_BPRD_ENABLE
1619                  | CPU_CONTROL_CPCLK | CPU_CONTROL_VECRELOC;
1620
1621 #ifndef ARM32_DISABLE_ALIGNMENT_FAULTS
1622         cpuctrl |= CPU_CONTROL_AFLT_ENABLE;
1623 #endif
1624
1625         cpuctrl = parse_cpu_options(args, fa526_options, cpuctrl);
1626
1627 #ifdef __ARMEB__
1628         cpuctrl |= CPU_CONTROL_BEND_ENABLE;
1629 #endif
1630
1631         if (vector_page == ARM_VECTORS_HIGH)
1632                 cpuctrl |= CPU_CONTROL_VECRELOC;
1633
1634         /* Clear out the cache */
1635         cpu_idcache_wbinv_all();
1636
1637         /* Set the control register */
1638         ctrl = cpuctrl;
1639         cpu_control(0xffffffff, cpuctrl);
1640 }
1641 #endif  /* CPU_FA526 || CPU_FA626TE */
1642
1643 #if defined(CPU_XSCALE_80200) || defined(CPU_XSCALE_80321) || \
1644   defined(CPU_XSCALE_PXA2X0) || defined(CPU_XSCALE_IXP425) || \
1645   defined(CPU_XSCALE_80219) || defined(CPU_XSCALE_81342)
1646 struct cpu_option xscale_options[] = {
1647 #ifdef COMPAT_12
1648         { "branchpredict",      BIC, OR,  CPU_CONTROL_BPRD_ENABLE },
1649         { "nocache",            IGN, BIC, (CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE) },
1650 #endif  /* COMPAT_12 */
1651         { "cpu.branchpredict",  BIC, OR,  CPU_CONTROL_BPRD_ENABLE },
1652         { "cpu.cache",          BIC, OR,  (CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE) },
1653         { "cpu.nocache",        OR,  BIC, (CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE) },
1654         { "xscale.branchpredict", BIC, OR,  CPU_CONTROL_BPRD_ENABLE },
1655         { "xscale.cache",       BIC, OR,  (CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE) },
1656         { "xscale.icache",      BIC, OR,  CPU_CONTROL_IC_ENABLE },
1657         { "xscale.dcache",      BIC, OR,  CPU_CONTROL_DC_ENABLE },
1658         { NULL,                 IGN, IGN, 0 }
1659 };
1660
1661 void
1662 xscale_setup(args)
1663         char *args;
1664 {
1665         uint32_t auxctl;
1666         int cpuctrl, cpuctrlmask;
1667
1668         /*
1669          * The XScale Write Buffer is always enabled.  Our option
1670          * is to enable/disable coalescing.  Note that bits 6:3
1671          * must always be enabled.
1672          */
1673
1674         cpuctrl = CPU_CONTROL_MMU_ENABLE | CPU_CONTROL_32BP_ENABLE
1675                  | CPU_CONTROL_32BD_ENABLE | CPU_CONTROL_SYST_ENABLE
1676                  | CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE
1677                  | CPU_CONTROL_WBUF_ENABLE | CPU_CONTROL_LABT_ENABLE
1678                  | CPU_CONTROL_BPRD_ENABLE;
1679         cpuctrlmask = CPU_CONTROL_MMU_ENABLE | CPU_CONTROL_32BP_ENABLE
1680                  | CPU_CONTROL_32BD_ENABLE | CPU_CONTROL_SYST_ENABLE
1681                  | CPU_CONTROL_IC_ENABLE | CPU_CONTROL_DC_ENABLE
1682                  | CPU_CONTROL_WBUF_ENABLE | CPU_CONTROL_ROM_ENABLE
1683                  | CPU_CONTROL_BEND_ENABLE | CPU_CONTROL_AFLT_ENABLE
1684                  | CPU_CONTROL_LABT_ENABLE | CPU_CONTROL_BPRD_ENABLE
1685                  | CPU_CONTROL_CPCLK | CPU_CONTROL_VECRELOC | \
1686                  CPU_CONTROL_L2_ENABLE;
1687
1688 #ifndef ARM32_DISABLE_ALIGNMENT_FAULTS
1689         cpuctrl |= CPU_CONTROL_AFLT_ENABLE;
1690 #endif
1691
1692         cpuctrl = parse_cpu_options(args, xscale_options, cpuctrl);
1693
1694 #ifdef __ARMEB__
1695         cpuctrl |= CPU_CONTROL_BEND_ENABLE;
1696 #endif
1697
1698         if (vector_page == ARM_VECTORS_HIGH)
1699                 cpuctrl |= CPU_CONTROL_VECRELOC;
1700 #ifdef CPU_XSCALE_CORE3
1701         cpuctrl |= CPU_CONTROL_L2_ENABLE;
1702 #endif
1703
1704         /* Clear out the cache */
1705         cpu_idcache_wbinv_all();
1706
1707         /*
1708          * Set the control register.  Note that bits 6:3 must always
1709          * be set to 1.
1710          */
1711         ctrl = cpuctrl;
1712 /*      cpu_control(cpuctrlmask, cpuctrl);*/
1713         cpu_control(0xffffffff, cpuctrl);
1714
1715         /* Make sure write coalescing is turned on */
1716         __asm __volatile("mrc p15, 0, %0, c1, c0, 1"
1717                 : "=r" (auxctl));
1718 #ifdef XSCALE_NO_COALESCE_WRITES
1719         auxctl |= XSCALE_AUXCTL_K;
1720 #else
1721         auxctl &= ~XSCALE_AUXCTL_K;
1722 #endif
1723 #ifdef CPU_XSCALE_CORE3
1724         auxctl |= XSCALE_AUXCTL_LLR;
1725         auxctl |= XSCALE_AUXCTL_MD_MASK;
1726 #endif
1727         __asm __volatile("mcr p15, 0, %0, c1, c0, 1"
1728                 : : "r" (auxctl));
1729 }
1730 #endif  /* CPU_XSCALE_80200 || CPU_XSCALE_80321 || CPU_XSCALE_PXA2X0 || CPU_XSCALE_IXP425
1731            CPU_XSCALE_80219 */