Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* $Id: processor.c,v 1.1 2002/07/20 16:27:06 rhirst Exp $ |
| 2 | * |
| 3 | * Initial setup-routines for HP 9000 based hardware. |
| 4 | * |
| 5 | * Copyright (C) 1991, 1992, 1995 Linus Torvalds |
| 6 | * Modifications for PA-RISC (C) 1999 Helge Deller <deller@gmx.de> |
| 7 | * Modifications copyright 1999 SuSE GmbH (Philipp Rumpf) |
| 8 | * Modifications copyright 2000 Martin K. Petersen <mkp@mkp.net> |
| 9 | * Modifications copyright 2000 Philipp Rumpf <prumpf@tux.org> |
| 10 | * Modifications copyright 2001 Ryan Bradetich <rbradetich@uswest.net> |
| 11 | * |
| 12 | * Initial PA-RISC Version: 04-23-1999 by Helge Deller |
| 13 | * |
| 14 | * This program is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU General Public License as published by |
| 16 | * the Free Software Foundation; either version 2, or (at your option) |
| 17 | * any later version. |
| 18 | * |
| 19 | * This program is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU General Public License |
| 25 | * along with this program; if not, write to the Free Software |
| 26 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 27 | * |
| 28 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | #include <linux/delay.h> |
| 30 | #include <linux/init.h> |
| 31 | #include <linux/mm.h> |
| 32 | #include <linux/module.h> |
| 33 | #include <linux/seq_file.h> |
| 34 | #include <linux/slab.h> |
| 35 | #include <linux/cpu.h> |
Alexey Dobriyan | e8edc6e | 2007-05-21 01:22:52 +0400 | [diff] [blame] | 36 | #include <asm/param.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | #include <asm/cache.h> |
| 38 | #include <asm/hardware.h> /* for register_parisc_driver() stuff */ |
| 39 | #include <asm/processor.h> |
| 40 | #include <asm/page.h> |
| 41 | #include <asm/pdc.h> |
| 42 | #include <asm/pdcpat.h> |
| 43 | #include <asm/irq.h> /* for struct irq_region */ |
| 44 | #include <asm/parisc-device.h> |
| 45 | |
Helge Deller | 8039de1 | 2006-01-10 20:35:03 -0500 | [diff] [blame] | 46 | struct system_cpuinfo_parisc boot_cpu_data __read_mostly; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | EXPORT_SYMBOL(boot_cpu_data); |
| 48 | |
Helge Deller | 8039de1 | 2006-01-10 20:35:03 -0500 | [diff] [blame] | 49 | struct cpuinfo_parisc cpu_data[NR_CPUS] __read_mostly; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | |
Kyle McMartin | 0136322 | 2007-02-26 22:21:22 -0500 | [diff] [blame] | 51 | extern int update_cr16_clocksource(void); /* from time.c */ |
| 52 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | /* |
| 54 | ** PARISC CPU driver - claim "device" and initialize CPU data structures. |
| 55 | ** |
| 56 | ** Consolidate per CPU initialization into (mostly) one module. |
| 57 | ** Monarch CPU will initialize boot_cpu_data which shouldn't |
| 58 | ** change once the system has booted. |
| 59 | ** |
| 60 | ** The callback *should* do per-instance initialization of |
| 61 | ** everything including the monarch. "Per CPU" init code in |
| 62 | ** setup.c:start_parisc() has migrated here and start_parisc() |
| 63 | ** will call register_parisc_driver(&cpu_driver) before calling do_inventory(). |
| 64 | ** |
| 65 | ** The goal of consolidating CPU initialization into one place is |
Simon Arlott | 7022672 | 2007-05-11 20:42:34 +0100 | [diff] [blame] | 66 | ** to make sure all CPUs get initialized the same way. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | ** The code path not shared is how PDC hands control of the CPU to the OS. |
| 68 | ** The initialization of OS data structures is the same (done below). |
| 69 | */ |
| 70 | |
| 71 | /** |
| 72 | * processor_probe - Determine if processor driver should claim this device. |
| 73 | * @dev: The device which has been found. |
| 74 | * |
| 75 | * Determine if processor driver should claim this chip (return 0) or not |
| 76 | * (return 1). If so, initialize the chip and tell other partners in crime |
| 77 | * they have work to do. |
| 78 | */ |
Helge Deller | e9541d0 | 2007-05-27 19:30:36 +0200 | [diff] [blame] | 79 | static int __cpuinit processor_probe(struct parisc_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | { |
| 81 | unsigned long txn_addr; |
| 82 | unsigned long cpuid; |
| 83 | struct cpuinfo_parisc *p; |
| 84 | |
Kyle McMartin | f8b9e59 | 2007-10-18 00:03:50 -0700 | [diff] [blame] | 85 | #ifdef CONFIG_SMP |
| 86 | if (num_online_cpus() >= NR_CPUS) { |
| 87 | printk(KERN_INFO "num_online_cpus() >= NR_CPUS\n"); |
| 88 | return 1; |
| 89 | } |
| 90 | #else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | if (boot_cpu_data.cpu_count > 0) { |
| 92 | printk(KERN_INFO "CONFIG_SMP=n ignoring additional CPUs\n"); |
| 93 | return 1; |
| 94 | } |
| 95 | #endif |
| 96 | |
| 97 | /* logical CPU ID and update global counter |
| 98 | * May get overwritten by PAT code. |
| 99 | */ |
| 100 | cpuid = boot_cpu_data.cpu_count; |
Matthew Wilcox | 53f01bb | 2005-10-21 22:36:40 -0400 | [diff] [blame] | 101 | txn_addr = dev->hpa.start; /* for legacy PDC */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | |
Helge Deller | a8f44e3 | 2007-01-28 14:58:52 +0100 | [diff] [blame] | 103 | #ifdef CONFIG_64BIT |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | if (is_pdc_pat()) { |
| 105 | ulong status; |
| 106 | unsigned long bytecnt; |
| 107 | pdc_pat_cell_mod_maddr_block_t pa_pdc_cell; |
| 108 | #undef USE_PAT_CPUID |
| 109 | #ifdef USE_PAT_CPUID |
| 110 | struct pdc_pat_cpu_num cpu_info; |
| 111 | #endif |
| 112 | |
| 113 | status = pdc_pat_cell_module(&bytecnt, dev->pcell_loc, |
| 114 | dev->mod_index, PA_VIEW, &pa_pdc_cell); |
| 115 | |
| 116 | BUG_ON(PDC_OK != status); |
| 117 | |
| 118 | /* verify it's the same as what do_pat_inventory() found */ |
| 119 | BUG_ON(dev->mod_info != pa_pdc_cell.mod_info); |
| 120 | BUG_ON(dev->pmod_loc != pa_pdc_cell.mod_location); |
| 121 | |
| 122 | txn_addr = pa_pdc_cell.mod[0]; /* id_eid for IO sapic */ |
| 123 | |
| 124 | #ifdef USE_PAT_CPUID |
| 125 | /* We need contiguous numbers for cpuid. Firmware's notion |
| 126 | * of cpuid is for physical CPUs and we just don't care yet. |
| 127 | * We'll care when we need to query PAT PDC about a CPU *after* |
| 128 | * boot time (ie shutdown a CPU from an OS perspective). |
| 129 | */ |
| 130 | /* get the cpu number */ |
Matthew Wilcox | 53f01bb | 2005-10-21 22:36:40 -0400 | [diff] [blame] | 131 | status = pdc_pat_cpu_get_number(&cpu_info, dev->hpa.start); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | |
| 133 | BUG_ON(PDC_OK != status); |
| 134 | |
| 135 | if (cpu_info.cpu_num >= NR_CPUS) { |
| 136 | printk(KERN_WARNING "IGNORING CPU at 0x%x," |
| 137 | " cpu_slot_id > NR_CPUS" |
| 138 | " (%ld > %d)\n", |
Matthew Wilcox | 53f01bb | 2005-10-21 22:36:40 -0400 | [diff] [blame] | 139 | dev->hpa.start, cpu_info.cpu_num, NR_CPUS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | /* Ignore CPU since it will only crash */ |
| 141 | boot_cpu_data.cpu_count--; |
| 142 | return 1; |
| 143 | } else { |
| 144 | cpuid = cpu_info.cpu_num; |
| 145 | } |
| 146 | #endif |
| 147 | } |
| 148 | #endif |
| 149 | |
| 150 | p = &cpu_data[cpuid]; |
| 151 | boot_cpu_data.cpu_count++; |
| 152 | |
Grant Grundler | 7908a0c | 2006-09-01 14:18:39 -0700 | [diff] [blame] | 153 | /* initialize counters - CPU 0 gets it_value set in time_init() */ |
| 154 | if (cpuid) |
| 155 | memset(p, 0, sizeof(struct cpuinfo_parisc)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | |
| 157 | p->loops_per_jiffy = loops_per_jiffy; |
| 158 | p->dev = dev; /* Save IODC data in case we need it */ |
Matthew Wilcox | 53f01bb | 2005-10-21 22:36:40 -0400 | [diff] [blame] | 159 | p->hpa = dev->hpa.start; /* save CPU hpa */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | p->cpuid = cpuid; /* save CPU id */ |
| 161 | p->txn_addr = txn_addr; /* save CPU IRQ address */ |
| 162 | #ifdef CONFIG_SMP |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | /* |
| 164 | ** FIXME: review if any other initialization is clobbered |
| 165 | ** for boot_cpu by the above memset(). |
| 166 | */ |
| 167 | |
| 168 | /* stolen from init_percpu_prof() */ |
| 169 | cpu_data[cpuid].prof_counter = 1; |
| 170 | cpu_data[cpuid].prof_multiplier = 1; |
| 171 | #endif |
| 172 | |
| 173 | /* |
Simon Arlott | 7022672 | 2007-05-11 20:42:34 +0100 | [diff] [blame] | 174 | ** CONFIG_SMP: init_smp_config() will attempt to get CPUs into |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | ** OS control. RENDEZVOUS is the default state - see mem_set above. |
| 176 | ** p->state = STATE_RENDEZVOUS; |
| 177 | */ |
| 178 | |
| 179 | #if 0 |
| 180 | /* CPU 0 IRQ table is statically allocated/initialized */ |
| 181 | if (cpuid) { |
| 182 | struct irqaction actions[]; |
| 183 | |
| 184 | /* |
| 185 | ** itimer and ipi IRQ handlers are statically initialized in |
| 186 | ** arch/parisc/kernel/irq.c. ie Don't need to register them. |
| 187 | */ |
| 188 | actions = kmalloc(sizeof(struct irqaction)*MAX_CPU_IRQ, GFP_ATOMIC); |
| 189 | if (!actions) { |
| 190 | /* not getting it's own table, share with monarch */ |
| 191 | actions = cpu_irq_actions[0]; |
| 192 | } |
| 193 | |
| 194 | cpu_irq_actions[cpuid] = actions; |
| 195 | } |
| 196 | #endif |
| 197 | |
| 198 | /* |
| 199 | * Bring this CPU up now! (ignore bootstrap cpuid == 0) |
| 200 | */ |
| 201 | #ifdef CONFIG_SMP |
| 202 | if (cpuid) { |
| 203 | cpu_set(cpuid, cpu_present_map); |
| 204 | cpu_up(cpuid); |
| 205 | } |
| 206 | #endif |
| 207 | |
Kyle McMartin | 0136322 | 2007-02-26 22:21:22 -0500 | [diff] [blame] | 208 | /* If we've registered more than one cpu, |
| 209 | * we'll use the jiffies clocksource since cr16 |
| 210 | * is not synchronized between CPUs. |
| 211 | */ |
| 212 | update_cr16_clocksource(); |
| 213 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | return 0; |
| 215 | } |
| 216 | |
| 217 | /** |
| 218 | * collect_boot_cpu_data - Fill the boot_cpu_data structure. |
| 219 | * |
| 220 | * This function collects and stores the generic processor information |
| 221 | * in the boot_cpu_data structure. |
| 222 | */ |
| 223 | void __init collect_boot_cpu_data(void) |
| 224 | { |
| 225 | memset(&boot_cpu_data, 0, sizeof(boot_cpu_data)); |
| 226 | |
| 227 | boot_cpu_data.cpu_hz = 100 * PAGE0->mem_10msec; /* Hz of this PARISC */ |
| 228 | |
| 229 | /* get CPU-Model Information... */ |
| 230 | #define p ((unsigned long *)&boot_cpu_data.pdc.model) |
| 231 | if (pdc_model_info(&boot_cpu_data.pdc.model) == PDC_OK) |
| 232 | printk(KERN_INFO |
| 233 | "model %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n", |
| 234 | p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8]); |
| 235 | #undef p |
| 236 | |
| 237 | if (pdc_model_versions(&boot_cpu_data.pdc.versions, 0) == PDC_OK) |
| 238 | printk(KERN_INFO "vers %08lx\n", |
| 239 | boot_cpu_data.pdc.versions); |
| 240 | |
| 241 | if (pdc_model_cpuid(&boot_cpu_data.pdc.cpuid) == PDC_OK) |
| 242 | printk(KERN_INFO "CPUID vers %ld rev %ld (0x%08lx)\n", |
| 243 | (boot_cpu_data.pdc.cpuid >> 5) & 127, |
| 244 | boot_cpu_data.pdc.cpuid & 31, |
| 245 | boot_cpu_data.pdc.cpuid); |
| 246 | |
| 247 | if (pdc_model_capabilities(&boot_cpu_data.pdc.capabilities) == PDC_OK) |
| 248 | printk(KERN_INFO "capabilities 0x%lx\n", |
| 249 | boot_cpu_data.pdc.capabilities); |
| 250 | |
| 251 | if (pdc_model_sysmodel(boot_cpu_data.pdc.sys_model_name) == PDC_OK) |
| 252 | printk(KERN_INFO "model %s\n", |
| 253 | boot_cpu_data.pdc.sys_model_name); |
| 254 | |
| 255 | boot_cpu_data.hversion = boot_cpu_data.pdc.model.hversion; |
| 256 | boot_cpu_data.sversion = boot_cpu_data.pdc.model.sversion; |
| 257 | |
| 258 | boot_cpu_data.cpu_type = parisc_get_cpu_type(boot_cpu_data.hversion); |
| 259 | boot_cpu_data.cpu_name = cpu_name_version[boot_cpu_data.cpu_type][0]; |
| 260 | boot_cpu_data.family_name = cpu_name_version[boot_cpu_data.cpu_type][1]; |
| 261 | } |
| 262 | |
| 263 | |
| 264 | /** |
| 265 | * init_cpu_profiler - enable/setup per cpu profiling hooks. |
| 266 | * @cpunum: The processor instance. |
| 267 | * |
| 268 | * FIXME: doesn't do much yet... |
| 269 | */ |
| 270 | static inline void __init |
| 271 | init_percpu_prof(int cpunum) |
| 272 | { |
| 273 | cpu_data[cpunum].prof_counter = 1; |
| 274 | cpu_data[cpunum].prof_multiplier = 1; |
| 275 | } |
| 276 | |
| 277 | |
| 278 | /** |
| 279 | * init_per_cpu - Handle individual processor initializations. |
| 280 | * @cpunum: logical processor number. |
| 281 | * |
| 282 | * This function handles initialization for *every* CPU |
| 283 | * in the system: |
| 284 | * |
| 285 | * o Set "default" CPU width for trap handlers |
| 286 | * |
| 287 | * o Enable FP coprocessor |
| 288 | * REVISIT: this could be done in the "code 22" trap handler. |
| 289 | * (frowands idea - that way we know which processes need FP |
| 290 | * registers saved on the interrupt stack.) |
| 291 | * NEWS FLASH: wide kernels need FP coprocessor enabled to handle |
| 292 | * formatted printing of %lx for example (double divides I think) |
| 293 | * |
| 294 | * o Enable CPU profiling hooks. |
| 295 | */ |
| 296 | int __init init_per_cpu(int cpunum) |
| 297 | { |
| 298 | int ret; |
| 299 | struct pdc_coproc_cfg coproc_cfg; |
| 300 | |
| 301 | set_firmware_width(); |
| 302 | ret = pdc_coproc_cfg(&coproc_cfg); |
| 303 | |
| 304 | if(ret >= 0 && coproc_cfg.ccr_functional) { |
| 305 | mtctl(coproc_cfg.ccr_functional, 10); /* 10 == Coprocessor Control Reg */ |
| 306 | |
| 307 | /* FWIW, FP rev/model is a more accurate way to determine |
| 308 | ** CPU type. CPU rev/model has some ambiguous cases. |
| 309 | */ |
| 310 | cpu_data[cpunum].fp_rev = coproc_cfg.revision; |
| 311 | cpu_data[cpunum].fp_model = coproc_cfg.model; |
| 312 | |
| 313 | printk(KERN_INFO "FP[%d] enabled: Rev %ld Model %ld\n", |
| 314 | cpunum, coproc_cfg.revision, coproc_cfg.model); |
| 315 | |
| 316 | /* |
| 317 | ** store status register to stack (hopefully aligned) |
| 318 | ** and clear the T-bit. |
| 319 | */ |
| 320 | asm volatile ("fstd %fr0,8(%sp)"); |
| 321 | |
| 322 | } else { |
| 323 | printk(KERN_WARNING "WARNING: No FP CoProcessor?!" |
| 324 | " (coproc_cfg.ccr_functional == 0x%lx, expected 0xc0)\n" |
Helge Deller | a8f44e3 | 2007-01-28 14:58:52 +0100 | [diff] [blame] | 325 | #ifdef CONFIG_64BIT |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | "Halting Machine - FP required\n" |
| 327 | #endif |
| 328 | , coproc_cfg.ccr_functional); |
Helge Deller | a8f44e3 | 2007-01-28 14:58:52 +0100 | [diff] [blame] | 329 | #ifdef CONFIG_64BIT |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | mdelay(100); /* previous chars get pushed to console */ |
| 331 | panic("FP CoProc not reported"); |
| 332 | #endif |
| 333 | } |
| 334 | |
| 335 | /* FUTURE: Enable Performance Monitor : ccr bit 0x20 */ |
| 336 | init_percpu_prof(cpunum); |
| 337 | |
| 338 | return ret; |
| 339 | } |
| 340 | |
| 341 | /* |
Simon Arlott | 7022672 | 2007-05-11 20:42:34 +0100 | [diff] [blame] | 342 | * Display CPU info for all CPUs. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | */ |
| 344 | int |
| 345 | show_cpuinfo (struct seq_file *m, void *v) |
| 346 | { |
| 347 | int n; |
| 348 | |
| 349 | for(n=0; n<boot_cpu_data.cpu_count; n++) { |
| 350 | #ifdef CONFIG_SMP |
| 351 | if (0 == cpu_data[n].hpa) |
| 352 | continue; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | #endif |
| 354 | seq_printf(m, "processor\t: %d\n" |
| 355 | "cpu family\t: PA-RISC %s\n", |
| 356 | n, boot_cpu_data.family_name); |
| 357 | |
| 358 | seq_printf(m, "cpu\t\t: %s\n", boot_cpu_data.cpu_name ); |
| 359 | |
| 360 | /* cpu MHz */ |
| 361 | seq_printf(m, "cpu MHz\t\t: %d.%06d\n", |
| 362 | boot_cpu_data.cpu_hz / 1000000, |
| 363 | boot_cpu_data.cpu_hz % 1000000 ); |
| 364 | |
| 365 | seq_printf(m, "model\t\t: %s\n" |
| 366 | "model name\t: %s\n", |
| 367 | boot_cpu_data.pdc.sys_model_name, |
| 368 | cpu_data[n].dev ? |
| 369 | cpu_data[n].dev->name : "Unknown" ); |
| 370 | |
| 371 | seq_printf(m, "hversion\t: 0x%08x\n" |
| 372 | "sversion\t: 0x%08x\n", |
| 373 | boot_cpu_data.hversion, |
| 374 | boot_cpu_data.sversion ); |
| 375 | |
| 376 | /* print cachesize info */ |
| 377 | show_cache_info(m); |
| 378 | |
| 379 | seq_printf(m, "bogomips\t: %lu.%02lu\n", |
| 380 | cpu_data[n].loops_per_jiffy / (500000 / HZ), |
| 381 | (cpu_data[n].loops_per_jiffy / (5000 / HZ)) % 100); |
| 382 | |
| 383 | seq_printf(m, "software id\t: %ld\n\n", |
| 384 | boot_cpu_data.pdc.model.sw_id); |
| 385 | } |
| 386 | return 0; |
| 387 | } |
| 388 | |
Helge Deller | e9541d0 | 2007-05-27 19:30:36 +0200 | [diff] [blame] | 389 | static const struct parisc_device_id processor_tbl[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | { HPHW_NPROC, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, SVERSION_ANY_ID }, |
| 391 | { 0, } |
| 392 | }; |
| 393 | |
Helge Deller | e9541d0 | 2007-05-27 19:30:36 +0200 | [diff] [blame] | 394 | static struct parisc_driver cpu_driver = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | .name = "CPU", |
| 396 | .id_table = processor_tbl, |
| 397 | .probe = processor_probe |
| 398 | }; |
| 399 | |
| 400 | /** |
Simon Arlott | 7022672 | 2007-05-11 20:42:34 +0100 | [diff] [blame] | 401 | * processor_init - Processor initialization procedure. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | * |
| 403 | * Register this driver. |
| 404 | */ |
| 405 | void __init processor_init(void) |
| 406 | { |
| 407 | register_parisc_driver(&cpu_driver); |
| 408 | } |