vr.c revision 1.34
1 /* $NetBSD: vr.c,v 1.34 2002/01/02 13:08:35 uch Exp $ */ 2 3 /*- 4 * Copyright (c) 1999-2001 5 * Shin Takemura and PocketBSD Project. 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 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the PocketBSD project 18 * and its contributors. 19 * 4. Neither the name of the project nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 */ 36 37 #include "opt_vr41xx.h" 38 #include "opt_tx39xx.h" 39 #include "opt_kgdb.h" 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/reboot.h> 44 45 #include <uvm/uvm_extern.h> 46 47 #include <machine/sysconf.h> 48 #include <machine/bootinfo.h> 49 #include <machine/bus.h> 50 #include <machine/bus_space_hpcmips.h> 51 52 #include <dev/hpc/hpckbdvar.h> 53 54 #include <hpcmips/hpcmips/machdep.h> /* cpu_name, mem_cluster */ 55 56 #include <hpcmips/vr/vr.h> 57 #include <hpcmips/vr/vr_asm.h> 58 #include <hpcmips/vr/vrcpudef.h> 59 #include <hpcmips/vr/vripreg.h> 60 #include <hpcmips/vr/rtcreg.h> 61 62 #include "vrip.h" 63 #if NVRIP > 0 64 #include <hpcmips/vr/vripvar.h> 65 #endif 66 67 #include "vrbcu.h" 68 #if NVRBCU > 0 69 #include <hpcmips/vr/bcuvar.h> 70 #endif 71 72 #include "vrdsu.h" 73 #if NVRDSU > 0 74 #include <hpcmips/vr/vrdsuvar.h> 75 #endif 76 77 #include "com.h" 78 #include "sg2com_vrip.h" 79 #if NCOM > 0 || NSG2COM_VRIP > 0 80 #include <sys/termios.h> 81 #include <sys/ttydefaults.h> 82 #include <dev/ic/comreg.h> 83 #include <dev/ic/comvar.h> 84 #if NCOM > 0 85 #include <hpcmips/vr/siureg.h> 86 #include <hpcmips/vr/com_vripvar.h> 87 #endif 88 #if NSG2COM_VRIP > 0 89 #include <hpcmips/vr/sg2comreg.h> 90 #include <hpcmips/vr/sg2com_vripvar.h> 91 #endif 92 #ifndef CONSPEED 93 #define CONSPEED TTYDEF_SPEED 94 #endif 95 #endif 96 97 #include "hpcfb.h" 98 #include "vrkiu.h" 99 #if (NVRKIU > 0) || (NHPCFB > 0) 100 #include <dev/wscons/wsdisplayvar.h> 101 #include <dev/rasops/rasops.h> 102 #endif 103 104 #if NHPCFB > 0 105 #include <dev/hpc/hpcfbvar.h> 106 #endif 107 108 #if NVRKIU > 0 109 #include <arch/hpcmips/vr/vrkiureg.h> 110 #include <arch/hpcmips/vr/vrkiuvar.h> 111 #endif 112 113 #ifdef DEBUG 114 #define STATIC 115 #else 116 #define STATIC static 117 #endif 118 119 /* 120 * This is a mask of bits to clear in the SR when we go to a 121 * given interrupt priority level. 122 */ 123 const u_int32_t __ipl_sr_bits_vr[_IPL_N] = { 124 0, /* IPL_NONE */ 125 126 MIPS_SOFT_INT_MASK_0, /* IPL_SOFT */ 127 128 MIPS_SOFT_INT_MASK_0, /* IPL_SOFTCLOCK */ 129 130 MIPS_SOFT_INT_MASK_0| 131 MIPS_SOFT_INT_MASK_1, /* IPL_SOFTNET */ 132 133 MIPS_SOFT_INT_MASK_0| 134 MIPS_SOFT_INT_MASK_1, /* IPL_SOFTSERIAL */ 135 136 MIPS_SOFT_INT_MASK_0| 137 MIPS_SOFT_INT_MASK_1| 138 MIPS_INT_MASK_0, /* IPL_BIO */ 139 140 MIPS_SOFT_INT_MASK_0| 141 MIPS_SOFT_INT_MASK_1| 142 MIPS_INT_MASK_0, /* IPL_NET */ 143 144 MIPS_SOFT_INT_MASK_0| 145 MIPS_SOFT_INT_MASK_1| 146 MIPS_INT_MASK_0, /* IPL_{TTY,SERIAL} */ 147 148 MIPS_SOFT_INT_MASK_0| 149 MIPS_SOFT_INT_MASK_1| 150 MIPS_INT_MASK_0| 151 MIPS_INT_MASK_1, /* IPL_{CLOCK,HIGH} */ 152 }; 153 154 #if defined(VR41XX) && defined(TX39XX) 155 #define VR_INTR vr_intr 156 #else 157 #define VR_INTR cpu_intr /* locore_mips3 directly call this */ 158 #endif 159 160 void vr_init(void); 161 void VR_INTR(u_int32_t, u_int32_t, u_int32_t, u_int32_t); 162 extern void vr_idle(void); 163 STATIC void vr_cons_init(void); 164 STATIC void vr_fb_init(caddr_t *); 165 STATIC void vr_mem_init(paddr_t); 166 STATIC void vr_find_dram(paddr_t, paddr_t); 167 STATIC void vr_reboot(int, char *); 168 169 /* 170 * CPU interrupt dispatch table (HwInt[0:3]) 171 */ 172 STATIC int vr_null_handler(void *, u_int32_t, u_int32_t); 173 STATIC int (*vr_intr_handler[4])(void *, u_int32_t, u_int32_t) = 174 { 175 vr_null_handler, 176 vr_null_handler, 177 vr_null_handler, 178 vr_null_handler 179 }; 180 STATIC void *vr_intr_arg[4]; 181 182 void 183 vr_init() 184 { 185 /* 186 * Platform Specific Function Hooks 187 */ 188 platform.cpu_idle = vr_idle; 189 platform.cpu_intr = VR_INTR; 190 platform.cons_init = vr_cons_init; 191 platform.fb_init = vr_fb_init; 192 platform.mem_init = vr_mem_init; 193 platform.reboot = vr_reboot; 194 195 #if NVRBCU > 0 196 sprintf(cpu_name, "NEC %s rev%d.%d %d.%03dMHz", 197 vrbcu_vrip_getcpuname(), 198 vrbcu_vrip_getcpumajor(), 199 vrbcu_vrip_getcpuminor(), 200 vrbcu_vrip_getcpuclock() / 1000000, 201 (vrbcu_vrip_getcpuclock() % 1000000) / 1000); 202 #else 203 sprintf(cpu_name, "NEC VR41xx"); 204 #endif 205 } 206 207 void 208 vr_mem_init(paddr_t kernend) 209 { 210 211 mem_clusters[0].start = 0; 212 mem_clusters[0].size = kernend; 213 mem_cluster_cnt = 1; 214 215 vr_find_dram(kernend, 0x02000000); 216 vr_find_dram(0x02000000, 0x04000000); 217 vr_find_dram(0x04000000, 0x06000000); 218 vr_find_dram(0x06000000, 0x08000000); 219 } 220 221 void 222 vr_find_dram(paddr_t addr, paddr_t end) 223 { 224 int n; 225 caddr_t page; 226 #ifdef NARLY_MEMORY_PROBE 227 int x, i; 228 #endif 229 230 #ifdef VR_FIND_DRAMLIM 231 if (VR_FIND_DRAMLIM < end) 232 end = VR_FIND_DRAMLIM; 233 #endif /* VR_FIND_DRAMLIM */ 234 n = mem_cluster_cnt; 235 for (; addr < end; addr += NBPG) { 236 237 page = (void *)MIPS_PHYS_TO_KSEG1(addr); 238 if (badaddr(page, 4)) 239 goto bad; 240 241 /* stop memory probing at first memory image */ 242 if (bcmp(page, (void *)MIPS_PHYS_TO_KSEG0(0), 128) == 0) 243 return; 244 245 *(volatile int *)(page+0) = 0xa5a5a5a5; 246 *(volatile int *)(page+4) = 0x5a5a5a5a; 247 wbflush(); 248 if (*(volatile int *)(page+0) != 0xa5a5a5a5) 249 goto bad; 250 251 *(volatile int *)(page+0) = 0x5a5a5a5a; 252 *(volatile int *)(page+4) = 0xa5a5a5a5; 253 wbflush(); 254 if (*(volatile int *)(page+0) != 0x5a5a5a5a) 255 goto bad; 256 257 #ifdef NARLY_MEMORY_PROBE 258 x = random(); 259 for (i = 0; i < NBPG; i += 4) 260 *(volatile int *)(page+i) = (x ^ i); 261 wbflush(); 262 for (i = 0; i < NBPG; i += 4) 263 if (*(volatile int *)(page+i) != (x ^ i)) 264 goto bad; 265 266 x = random(); 267 for (i = 0; i < NBPG; i += 4) 268 *(volatile int *)(page+i) = (x ^ i); 269 wbflush(); 270 for (i = 0; i < NBPG; i += 4) 271 if (*(volatile int *)(page+i) != (x ^ i)) 272 goto bad; 273 #endif /* NARLY_MEMORY_PROBE */ 274 275 if (!mem_clusters[n].size) 276 mem_clusters[n].start = addr; 277 mem_clusters[n].size += NBPG; 278 continue; 279 280 bad: 281 if (mem_clusters[n].size) 282 ++n; 283 continue; 284 } 285 if (mem_clusters[n].size) 286 ++n; 287 mem_cluster_cnt = n; 288 } 289 290 void 291 vr_fb_init(caddr_t *kernend) 292 { 293 /* Nothing to do */ 294 } 295 296 void 297 vr_cons_init() 298 { 299 #if NCOM > 0 || NSG2COM_VRIP > 0 || NHPCFB > 0 || NVRKIU > 0 300 bus_space_tag_t iot = hpcmips_system_bus_space(); 301 #endif 302 303 #if NCOM > 0 304 #ifdef KGDB 305 /* if KGDB is defined, always use the serial port for KGDB */ 306 if (com_vrip_cndb_attach(iot, VRIP_SIU_ADDR, 9600, VRCOM_FREQ, 307 (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8, 1)) { 308 printf("%s(%d): can't init kgdb's serial port", 309 __FILE__, __LINE__); 310 } 311 #else /* KGDB */ 312 if (bootinfo->bi_cnuse & BI_CNUSE_SERIAL) { 313 /* Serial console */ 314 if (com_vrip_cndb_attach(iot, VRIP_SIU_ADDR, CONSPEED, 315 VRCOM_FREQ, (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8, 0)) { 316 printf("%s(%d): can't init serial console", 317 __FILE__, __LINE__); 318 } else { 319 #if NSG2COM_VRIP == 0 320 return; 321 #endif 322 } 323 } 324 #endif /* KGDB */ 325 #endif /* NCOM > 0 */ 326 327 #if NSG2COM_VRIP > 0 328 #ifdef KGDB 329 /* if KGDB is defined, always use the serial port for KGDB */ 330 if (sg2com_vrip_cndb_attach(iot, SG2COM_VRIP_ADDR, 9600, SG2COM_FREQ, 331 (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8, 1)) { 332 printf("%s(%d): can't init kgdb's serial port", 333 __FILE__, __LINE__); 334 } 335 #else /* KGDB */ 336 if (bootinfo->bi_cnuse & BI_CNUSE_SERIAL) { 337 /* Serial console */ 338 if (sg2com_vrip_cndb_attach(iot, SG2COM_ADDR, CONSPEED, 339 SG2COM_FREQ, (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8, 0)){ 340 printf("%s(%d): can't init serial console", 341 __FILE__, __LINE__); 342 } else { 343 return; 344 } 345 } 346 #endif /* KGDB */ 347 #endif /* NSG2COM_VRIP > 0 */ 348 349 #if NHPCFB > 0 350 if (hpcfb_cnattach(NULL)) { 351 printf("%s(%d): can't init fb console", __FILE__, __LINE__); 352 } else { 353 goto find_keyboard; 354 } 355 find_keyboard: 356 #endif /* NHPCFB > 0 */ 357 358 #if NVRKIU > 0 && VRIP_KIU_ADDR != VRIP_NO_ADDR 359 if (vrkiu_cnattach(iot, VRIP_KIU_ADDR)) { 360 printf("%s(%d): can't init vrkiu as console", 361 __FILE__, __LINE__); 362 } else { 363 return; 364 } 365 #endif /* NVRKIU > 0 && VRIP_KIU_ADDR != VRIP_NO_ADDR */ 366 } 367 368 void 369 vr_reboot(int howto, char *bootstr) 370 { 371 /* 372 * power down 373 */ 374 if ((howto & RB_POWERDOWN) == RB_POWERDOWN) { 375 printf("fake powerdown\n"); 376 __asm(__CONCAT(".word ",___STRING(VR_OPCODE_HIBERNATE))); 377 __asm("nop"); 378 __asm("nop"); 379 __asm("nop"); 380 __asm("nop"); 381 __asm("nop"); 382 __asm(".set reorder"); 383 /* not reach */ 384 vr_reboot(howto&~RB_HALT, bootstr); 385 } 386 /* 387 * halt 388 */ 389 if (howto & RB_HALT) { 390 #if NVRIP > 0 391 _spllower(~MIPS_INT_MASK_0); 392 vrip_intr_suspend(); 393 #else 394 splhigh(); 395 #endif 396 __asm(".set noreorder"); 397 __asm(__CONCAT(".word ",___STRING(VR_OPCODE_SUSPEND))); 398 __asm("nop"); 399 __asm("nop"); 400 __asm("nop"); 401 __asm("nop"); 402 __asm("nop"); 403 __asm(".set reorder"); 404 #if NVRIP > 0 405 vrip_intr_resume(); 406 #endif 407 } 408 /* 409 * reset 410 */ 411 #if NVRDSU 412 vrdsu_reset(); 413 #else 414 printf("%s(%d): There is no DSU.", __FILE__, __LINE__); 415 #endif 416 } 417 418 /* 419 * Handle interrupts. 420 */ 421 void 422 VR_INTR(u_int32_t status, u_int32_t cause, u_int32_t pc, u_int32_t ipending) 423 { 424 uvmexp.intrs++; 425 426 if (ipending & MIPS_INT_MASK_5) { 427 /* 428 * spl* uses MIPS_INT_MASK not MIPS3_INT_MASK. it causes 429 * INT5 interrupt. 430 */ 431 mips3_cp0_compare_write(mips3_cp0_count_read()); 432 } 433 434 /* for spllowersoftclock */ 435 _splset(((status & ~cause) & MIPS_HARD_INT_MASK) | MIPS_SR_INT_IE); 436 437 if (ipending & MIPS_INT_MASK_1) { 438 (*vr_intr_handler[1])(vr_intr_arg[1], pc, status); 439 440 cause &= ~MIPS_INT_MASK_1; 441 _splset(((status & ~cause) & MIPS_HARD_INT_MASK) 442 | MIPS_SR_INT_IE); 443 } 444 445 if (ipending & MIPS_INT_MASK_0) { 446 (*vr_intr_handler[0])(vr_intr_arg[0], pc, status); 447 448 cause &= ~MIPS_INT_MASK_0; 449 } 450 _splset(((status & ~cause) & MIPS_HARD_INT_MASK) | MIPS_SR_INT_IE); 451 452 softintr(ipending); 453 } 454 455 void * 456 vr_intr_establish(int line, int (*ih_fun)(void *, u_int32_t, u_int32_t), 457 void *ih_arg) 458 { 459 460 KDASSERT(vr_intr_handler[line] == vr_null_handler); 461 462 vr_intr_handler[line] = ih_fun; 463 vr_intr_arg[line] = ih_arg; 464 465 return ((void *)line); 466 } 467 468 void 469 vr_intr_disestablish(void *ih) 470 { 471 int line = (int)ih; 472 473 vr_intr_handler[line] = vr_null_handler; 474 vr_intr_arg[line] = NULL; 475 } 476 477 int 478 vr_null_handler(void *arg, u_int32_t pc, u_int32_t status) 479 { 480 481 printf("vr_null_handler\n"); 482 483 return (0); 484 } 485 486 /* 487 int x4181 = VR4181; 488 int x4101 = VR4101; 489 int x4102 = VR4102; 490 int x4111 = VR4111; 491 int x4121 = VR4121; 492 int x4122 = VR4122; 493 int xo4181 = ONLY_VR4181; 494 int xo4101 = ONLY_VR4101; 495 int xo4102 = ONLY_VR4102; 496 int xo4111_4121 = ONLY_VR4111_4121; 497 int g4101=VRGROUP_4101; 498 int g4102=VRGROUP_4102; 499 int g4181=VRGROUP_4181; 500 int g4102_4121=VRGROUP_4102_4121; 501 int g4111_4121=VRGROUP_4111_4121; 502 int g4102_4122=VRGROUP_4102_4122; 503 int g4111_4122=VRGROUP_4111_4122; 504 int single_vrip_base=SINGLE_VRIP_BASE; 505 int vrip_base_addr=VRIP_BASE_ADDR; 506 */ 507
Indexes created Wed Oct 22 13:09:56 GMT 2025