Adrian Bunk | b00dc83 | 2008-05-19 16:52:27 -0700 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * linux/arch/sparc64/kernel/setup.c |
| 3 | * |
| 4 | * Copyright (C) 1995,1996 David S. Miller (davem@caip.rutgers.edu) |
| 5 | * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) |
| 6 | */ |
| 7 | |
| 8 | #include <linux/errno.h> |
| 9 | #include <linux/sched.h> |
| 10 | #include <linux/kernel.h> |
| 11 | #include <linux/mm.h> |
| 12 | #include <linux/stddef.h> |
| 13 | #include <linux/unistd.h> |
| 14 | #include <linux/ptrace.h> |
| 15 | #include <linux/slab.h> |
| 16 | #include <asm/smp.h> |
| 17 | #include <linux/user.h> |
Jon Smirl | 894673e | 2006-07-10 04:44:13 -0700 | [diff] [blame] | 18 | #include <linux/screen_info.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | #include <linux/delay.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | #include <linux/fs.h> |
| 21 | #include <linux/seq_file.h> |
| 22 | #include <linux/syscalls.h> |
| 23 | #include <linux/kdev_t.h> |
| 24 | #include <linux/major.h> |
| 25 | #include <linux/string.h> |
| 26 | #include <linux/init.h> |
| 27 | #include <linux/inet.h> |
| 28 | #include <linux/console.h> |
| 29 | #include <linux/root_dev.h> |
| 30 | #include <linux/interrupt.h> |
| 31 | #include <linux/cpu.h> |
| 32 | #include <linux/initrd.h> |
| 33 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | #include <asm/system.h> |
| 35 | #include <asm/io.h> |
| 36 | #include <asm/processor.h> |
| 37 | #include <asm/oplib.h> |
| 38 | #include <asm/page.h> |
| 39 | #include <asm/pgtable.h> |
| 40 | #include <asm/idprom.h> |
| 41 | #include <asm/head.h> |
| 42 | #include <asm/starfire.h> |
| 43 | #include <asm/mmu_context.h> |
| 44 | #include <asm/timer.h> |
| 45 | #include <asm/sections.h> |
| 46 | #include <asm/setup.h> |
| 47 | #include <asm/mmu.h> |
David S. Miller | 5cbc307 | 2007-05-25 15:49:59 -0700 | [diff] [blame] | 48 | #include <asm/ns87303.h> |
David S. Miller | c57ec52 | 2009-11-27 17:33:43 -0800 | [diff] [blame^] | 49 | #include <asm/btext.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | |
| 51 | #ifdef CONFIG_IP_PNP |
| 52 | #include <net/ipconfig.h> |
| 53 | #endif |
| 54 | |
David S. Miller | 3d5ae6b | 2008-03-25 21:51:40 -0700 | [diff] [blame] | 55 | #include "entry.h" |
Sam Ravnborg | 53ae341 | 2008-12-07 00:02:08 -0800 | [diff] [blame] | 56 | #include "kernel.h" |
David S. Miller | 3d5ae6b | 2008-03-25 21:51:40 -0700 | [diff] [blame] | 57 | |
David S. Miller | 5cbc307 | 2007-05-25 15:49:59 -0700 | [diff] [blame] | 58 | /* Used to synchronize accesses to NatSemi SUPER I/O chip configure |
| 59 | * operations in asm/ns87303.h |
| 60 | */ |
| 61 | DEFINE_SPINLOCK(ns87303_lock); |
Sam Ravnborg | 917c366 | 2009-01-08 16:58:20 -0800 | [diff] [blame] | 62 | EXPORT_SYMBOL(ns87303_lock); |
David S. Miller | 5cbc307 | 2007-05-25 15:49:59 -0700 | [diff] [blame] | 63 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | struct screen_info screen_info = { |
| 65 | 0, 0, /* orig-x, orig-y */ |
| 66 | 0, /* unused */ |
| 67 | 0, /* orig-video-page */ |
| 68 | 0, /* orig-video-mode */ |
| 69 | 128, /* orig-video-cols */ |
| 70 | 0, 0, 0, /* unused, ega_bx, unused */ |
| 71 | 54, /* orig-video-lines */ |
| 72 | 0, /* orig-video-isVGA */ |
| 73 | 16 /* orig-video-points */ |
| 74 | }; |
| 75 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | static void |
| 77 | prom_console_write(struct console *con, const char *s, unsigned n) |
| 78 | { |
| 79 | prom_write(s, n); |
| 80 | } |
| 81 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | /* Exported for mm/init.c:paging_init. */ |
| 83 | unsigned long cmdline_memory_size = 0; |
| 84 | |
David S. Miller | 3c62a2d | 2008-02-17 23:22:50 -0800 | [diff] [blame] | 85 | static struct console prom_early_console = { |
| 86 | .name = "earlyprom", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | .write = prom_console_write, |
David S. Miller | db9a7fb | 2008-04-23 22:22:29 -0700 | [diff] [blame] | 88 | .flags = CON_PRINTBUFFER | CON_BOOT | CON_ANYTIME, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | .index = -1, |
| 90 | }; |
| 91 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | /* |
| 93 | * Process kernel command line switches that are specific to the |
| 94 | * SPARC or that require special low-level processing. |
| 95 | */ |
| 96 | static void __init process_switch(char c) |
| 97 | { |
| 98 | switch (c) { |
| 99 | case 'd': |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | case 's': |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | break; |
| 102 | case 'h': |
| 103 | prom_printf("boot_flags_init: Halt!\n"); |
| 104 | prom_halt(); |
| 105 | break; |
| 106 | case 'p': |
David S. Miller | 3c62a2d | 2008-02-17 23:22:50 -0800 | [diff] [blame] | 107 | /* Just ignore, this behavior is now the default. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | break; |
David S. Miller | 816242d | 2005-05-23 15:52:08 -0700 | [diff] [blame] | 109 | case 'P': |
| 110 | /* Force UltraSPARC-III P-Cache on. */ |
| 111 | if (tlb_type != cheetah) { |
| 112 | printk("BOOT: Ignoring P-Cache force option.\n"); |
| 113 | break; |
| 114 | } |
| 115 | cheetah_pcache_forced_on = 1; |
| 116 | add_taint(TAINT_MACHINE_CHECK); |
| 117 | cheetah_enable_pcache(); |
| 118 | break; |
| 119 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | default: |
| 121 | printk("Unknown boot switch (-%c)\n", c); |
| 122 | break; |
| 123 | } |
| 124 | } |
| 125 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | static void __init boot_flags_init(char *commands) |
| 127 | { |
| 128 | while (*commands) { |
| 129 | /* Move to the start of the next "argument". */ |
| 130 | while (*commands && *commands == ' ') |
| 131 | commands++; |
| 132 | |
| 133 | /* Process any command switches, otherwise skip it. */ |
| 134 | if (*commands == '\0') |
| 135 | break; |
| 136 | if (*commands == '-') { |
| 137 | commands++; |
| 138 | while (*commands && *commands != ' ') |
| 139 | process_switch(*commands++); |
| 140 | continue; |
| 141 | } |
David S. Miller | c73fcc8 | 2007-07-20 16:59:26 -0700 | [diff] [blame] | 142 | if (!strncmp(commands, "mem=", 4)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | /* |
| 144 | * "mem=XXX[kKmM]" overrides the PROM-reported |
| 145 | * memory size. |
| 146 | */ |
| 147 | cmdline_memory_size = simple_strtoul(commands + 4, |
| 148 | &commands, 0); |
| 149 | if (*commands == 'K' || *commands == 'k') { |
| 150 | cmdline_memory_size <<= 10; |
| 151 | commands++; |
| 152 | } else if (*commands=='M' || *commands=='m') { |
| 153 | cmdline_memory_size <<= 20; |
| 154 | commands++; |
| 155 | } |
| 156 | } |
| 157 | while (*commands && *commands != ' ') |
| 158 | commands++; |
| 159 | } |
| 160 | } |
| 161 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | extern unsigned short root_flags; |
| 163 | extern unsigned short root_dev; |
| 164 | extern unsigned short ram_flags; |
| 165 | #define RAMDISK_IMAGE_START_MASK 0x07FF |
| 166 | #define RAMDISK_PROMPT_FLAG 0x8000 |
| 167 | #define RAMDISK_LOAD_FLAG 0x4000 |
| 168 | |
| 169 | extern int root_mountflags; |
| 170 | |
| 171 | char reboot_command[COMMAND_LINE_SIZE]; |
| 172 | |
| 173 | static struct pt_regs fake_swapper_regs = { { 0, }, 0, 0, 0, 0 }; |
| 174 | |
David S. Miller | 951bc82 | 2006-05-31 01:24:02 -0700 | [diff] [blame] | 175 | void __init per_cpu_patch(void) |
David S. Miller | 92704a1 | 2006-02-26 23:27:19 -0800 | [diff] [blame] | 176 | { |
David S. Miller | 92704a1 | 2006-02-26 23:27:19 -0800 | [diff] [blame] | 177 | struct cpuid_patch_entry *p; |
| 178 | unsigned long ver; |
| 179 | int is_jbus; |
| 180 | |
| 181 | if (tlb_type == spitfire && !this_is_starfire) |
| 182 | return; |
| 183 | |
David S. Miller | d82ace7 | 2006-02-09 02:52:44 -0800 | [diff] [blame] | 184 | is_jbus = 0; |
| 185 | if (tlb_type != hypervisor) { |
| 186 | __asm__ ("rdpr %%ver, %0" : "=r" (ver)); |
David S. Miller | ebd8c56 | 2006-02-17 08:38:06 -0800 | [diff] [blame] | 187 | is_jbus = ((ver >> 32UL) == __JALAPENO_ID || |
| 188 | (ver >> 32UL) == __SERRANO_ID); |
David S. Miller | d82ace7 | 2006-02-09 02:52:44 -0800 | [diff] [blame] | 189 | } |
David S. Miller | 92704a1 | 2006-02-26 23:27:19 -0800 | [diff] [blame] | 190 | |
| 191 | p = &__cpuid_patch; |
| 192 | while (p < &__cpuid_patch_end) { |
| 193 | unsigned long addr = p->addr; |
| 194 | unsigned int *insns; |
| 195 | |
| 196 | switch (tlb_type) { |
| 197 | case spitfire: |
| 198 | insns = &p->starfire[0]; |
| 199 | break; |
| 200 | case cheetah: |
| 201 | case cheetah_plus: |
| 202 | if (is_jbus) |
| 203 | insns = &p->cheetah_jbus[0]; |
| 204 | else |
| 205 | insns = &p->cheetah_safari[0]; |
| 206 | break; |
David S. Miller | d96b815 | 2006-02-04 15:40:53 -0800 | [diff] [blame] | 207 | case hypervisor: |
| 208 | insns = &p->sun4v[0]; |
| 209 | break; |
David S. Miller | 92704a1 | 2006-02-26 23:27:19 -0800 | [diff] [blame] | 210 | default: |
| 211 | prom_printf("Unknown cpu type, halting.\n"); |
| 212 | prom_halt(); |
| 213 | }; |
| 214 | |
| 215 | *(unsigned int *) (addr + 0) = insns[0]; |
David S. Miller | 840aaef | 2006-02-06 15:52:05 -0800 | [diff] [blame] | 216 | wmb(); |
David S. Miller | 92704a1 | 2006-02-26 23:27:19 -0800 | [diff] [blame] | 217 | __asm__ __volatile__("flush %0" : : "r" (addr + 0)); |
| 218 | |
| 219 | *(unsigned int *) (addr + 4) = insns[1]; |
David S. Miller | 840aaef | 2006-02-06 15:52:05 -0800 | [diff] [blame] | 220 | wmb(); |
David S. Miller | 92704a1 | 2006-02-26 23:27:19 -0800 | [diff] [blame] | 221 | __asm__ __volatile__("flush %0" : : "r" (addr + 4)); |
| 222 | |
| 223 | *(unsigned int *) (addr + 8) = insns[2]; |
David S. Miller | 840aaef | 2006-02-06 15:52:05 -0800 | [diff] [blame] | 224 | wmb(); |
David S. Miller | 92704a1 | 2006-02-26 23:27:19 -0800 | [diff] [blame] | 225 | __asm__ __volatile__("flush %0" : : "r" (addr + 8)); |
| 226 | |
| 227 | *(unsigned int *) (addr + 12) = insns[3]; |
David S. Miller | 840aaef | 2006-02-06 15:52:05 -0800 | [diff] [blame] | 228 | wmb(); |
David S. Miller | 92704a1 | 2006-02-26 23:27:19 -0800 | [diff] [blame] | 229 | __asm__ __volatile__("flush %0" : : "r" (addr + 12)); |
| 230 | |
| 231 | p++; |
| 232 | } |
David S. Miller | 92704a1 | 2006-02-26 23:27:19 -0800 | [diff] [blame] | 233 | } |
| 234 | |
David S. Miller | 951bc82 | 2006-05-31 01:24:02 -0700 | [diff] [blame] | 235 | void __init sun4v_patch(void) |
David S. Miller | 936f482 | 2006-02-05 21:29:28 -0800 | [diff] [blame] | 236 | { |
David S. Miller | c7754d4 | 2007-05-15 17:03:54 -0700 | [diff] [blame] | 237 | extern void sun4v_hvapi_init(void); |
David S. Miller | df7d6ae | 2006-02-07 00:00:16 -0800 | [diff] [blame] | 238 | struct sun4v_1insn_patch_entry *p1; |
| 239 | struct sun4v_2insn_patch_entry *p2; |
David S. Miller | 936f482 | 2006-02-05 21:29:28 -0800 | [diff] [blame] | 240 | |
| 241 | if (tlb_type != hypervisor) |
| 242 | return; |
| 243 | |
David S. Miller | df7d6ae | 2006-02-07 00:00:16 -0800 | [diff] [blame] | 244 | p1 = &__sun4v_1insn_patch; |
| 245 | while (p1 < &__sun4v_1insn_patch_end) { |
David S. Miller | 45fec05 | 2006-02-05 22:27:28 -0800 | [diff] [blame] | 246 | unsigned long addr = p1->addr; |
David S. Miller | 936f482 | 2006-02-05 21:29:28 -0800 | [diff] [blame] | 247 | |
David S. Miller | 45fec05 | 2006-02-05 22:27:28 -0800 | [diff] [blame] | 248 | *(unsigned int *) (addr + 0) = p1->insn; |
David S. Miller | 840aaef | 2006-02-06 15:52:05 -0800 | [diff] [blame] | 249 | wmb(); |
David S. Miller | 936f482 | 2006-02-05 21:29:28 -0800 | [diff] [blame] | 250 | __asm__ __volatile__("flush %0" : : "r" (addr + 0)); |
| 251 | |
David S. Miller | 45fec05 | 2006-02-05 22:27:28 -0800 | [diff] [blame] | 252 | p1++; |
| 253 | } |
| 254 | |
David S. Miller | df7d6ae | 2006-02-07 00:00:16 -0800 | [diff] [blame] | 255 | p2 = &__sun4v_2insn_patch; |
| 256 | while (p2 < &__sun4v_2insn_patch_end) { |
David S. Miller | 45fec05 | 2006-02-05 22:27:28 -0800 | [diff] [blame] | 257 | unsigned long addr = p2->addr; |
| 258 | |
| 259 | *(unsigned int *) (addr + 0) = p2->insns[0]; |
David S. Miller | 840aaef | 2006-02-06 15:52:05 -0800 | [diff] [blame] | 260 | wmb(); |
David S. Miller | 45fec05 | 2006-02-05 22:27:28 -0800 | [diff] [blame] | 261 | __asm__ __volatile__("flush %0" : : "r" (addr + 0)); |
| 262 | |
David S. Miller | fd05068 | 2006-02-11 11:05:52 -0800 | [diff] [blame] | 263 | *(unsigned int *) (addr + 4) = p2->insns[1]; |
David S. Miller | 840aaef | 2006-02-06 15:52:05 -0800 | [diff] [blame] | 264 | wmb(); |
David S. Miller | 45fec05 | 2006-02-05 22:27:28 -0800 | [diff] [blame] | 265 | __asm__ __volatile__("flush %0" : : "r" (addr + 4)); |
| 266 | |
| 267 | p2++; |
David S. Miller | 936f482 | 2006-02-05 21:29:28 -0800 | [diff] [blame] | 268 | } |
David S. Miller | c7754d4 | 2007-05-15 17:03:54 -0700 | [diff] [blame] | 269 | |
| 270 | sun4v_hvapi_init(); |
David S. Miller | 936f482 | 2006-02-05 21:29:28 -0800 | [diff] [blame] | 271 | } |
| 272 | |
David S. Miller | 951bc82 | 2006-05-31 01:24:02 -0700 | [diff] [blame] | 273 | #ifdef CONFIG_SMP |
| 274 | void __init boot_cpu_id_too_large(int cpu) |
| 275 | { |
| 276 | prom_printf("Serious problem, boot cpu id (%d) >= NR_CPUS (%d)\n", |
| 277 | cpu, NR_CPUS); |
| 278 | prom_halt(); |
| 279 | } |
| 280 | #endif |
| 281 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 282 | void __init setup_arch(char **cmdline_p) |
| 283 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | /* Initialize PROM console and command line. */ |
| 285 | *cmdline_p = prom_getbootargs(); |
Alon Bar-Lev | 383464c | 2007-02-12 00:54:22 -0800 | [diff] [blame] | 286 | strcpy(boot_command_line, *cmdline_p); |
David S. Miller | ce3b1d4 | 2008-03-19 03:54:09 -0700 | [diff] [blame] | 287 | parse_early_param(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | |
David S. Miller | 3c62a2d | 2008-02-17 23:22:50 -0800 | [diff] [blame] | 289 | boot_flags_init(*cmdline_p); |
David S. Miller | c57ec52 | 2009-11-27 17:33:43 -0800 | [diff] [blame^] | 290 | #ifdef CONFIG_EARLYFB |
| 291 | if (btext_find_display()) |
| 292 | #endif |
| 293 | register_console(&prom_early_console); |
David S. Miller | 3c62a2d | 2008-02-17 23:22:50 -0800 | [diff] [blame] | 294 | |
David S. Miller | 3a8c069 | 2006-02-09 02:54:54 -0800 | [diff] [blame] | 295 | if (tlb_type == hypervisor) |
| 296 | printk("ARCH: SUN4V\n"); |
| 297 | else |
| 298 | printk("ARCH: SUN4U\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | |
| 300 | #ifdef CONFIG_DUMMY_CONSOLE |
| 301 | conswitchp = &dummy_con; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 302 | #endif |
| 303 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | idprom_init(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | |
| 306 | if (!root_flags) |
| 307 | root_mountflags &= ~MS_RDONLY; |
| 308 | ROOT_DEV = old_decode_dev(root_dev); |
Andrew Morton | 467418f | 2006-03-19 12:46:55 -0800 | [diff] [blame] | 309 | #ifdef CONFIG_BLK_DEV_RAM |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | rd_image_start = ram_flags & RAMDISK_IMAGE_START_MASK; |
| 311 | rd_prompt = ((ram_flags & RAMDISK_PROMPT_FLAG) != 0); |
| 312 | rd_doload = ((ram_flags & RAMDISK_LOAD_FLAG) != 0); |
| 313 | #endif |
| 314 | |
Al Viro | f316964 | 2006-01-12 01:05:42 -0800 | [diff] [blame] | 315 | task_thread_info(&init_task)->kregs = &fake_swapper_regs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | |
| 317 | #ifdef CONFIG_IP_PNP |
| 318 | if (!ic_set_manually) { |
| 319 | int chosen = prom_finddevice ("/chosen"); |
| 320 | u32 cl, sv, gw; |
| 321 | |
| 322 | cl = prom_getintdefault (chosen, "client-ip", 0); |
| 323 | sv = prom_getintdefault (chosen, "server-ip", 0); |
| 324 | gw = prom_getintdefault (chosen, "gateway-ip", 0); |
| 325 | if (cl && sv) { |
| 326 | ic_myaddr = cl; |
| 327 | ic_servaddr = sv; |
| 328 | if (gw) |
| 329 | ic_gateway = gw; |
| 330 | #if defined(CONFIG_IP_PNP_BOOTP) || defined(CONFIG_IP_PNP_RARP) |
| 331 | ic_proto_enabled = 0; |
| 332 | #endif |
| 333 | } |
| 334 | } |
| 335 | #endif |
| 336 | |
David S. Miller | 56fb4df | 2006-02-26 23:24:22 -0800 | [diff] [blame] | 337 | /* Get boot processor trap_block[] setup. */ |
David S. Miller | 72aff53 | 2006-02-17 01:29:17 -0800 | [diff] [blame] | 338 | init_cur_cpu_trap(current_thread_info()); |
David S. Miller | 52845cd | 2006-02-26 23:32:33 -0800 | [diff] [blame] | 339 | |
| 340 | paging_init(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | } |
| 342 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | /* BUFFER is PAGE_SIZE bytes long. */ |
| 344 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | extern void smp_info(struct seq_file *); |
| 346 | extern void smp_bogo(struct seq_file *); |
| 347 | extern void mmu_info(struct seq_file *); |
| 348 | |
David S. Miller | 80dc0d6 | 2005-09-26 00:32:17 -0700 | [diff] [blame] | 349 | unsigned int dcache_parity_tl1_occurred; |
| 350 | unsigned int icache_parity_tl1_occurred; |
| 351 | |
David S. Miller | 5cbc307 | 2007-05-25 15:49:59 -0700 | [diff] [blame] | 352 | int ncpus_probed; |
David S. Miller | 4d45cba | 2005-11-11 12:48:56 -0800 | [diff] [blame] | 353 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | static int show_cpuinfo(struct seq_file *m, void *__unused) |
| 355 | { |
| 356 | seq_printf(m, |
| 357 | "cpu\t\t: %s\n" |
| 358 | "fpu\t\t: %s\n" |
David S. Miller | c3cf5e8 | 2009-01-21 23:16:40 -0800 | [diff] [blame] | 359 | "pmu\t\t: %s\n" |
David S. Miller | 90a6646 | 2006-03-08 17:18:19 -0800 | [diff] [blame] | 360 | "prom\t\t: %s\n" |
| 361 | "type\t\t: %s\n" |
David S. Miller | 4d45cba | 2005-11-11 12:48:56 -0800 | [diff] [blame] | 362 | "ncpus probed\t: %d\n" |
| 363 | "ncpus active\t: %d\n" |
David S. Miller | 80dc0d6 | 2005-09-26 00:32:17 -0700 | [diff] [blame] | 364 | "D$ parity tl1\t: %u\n" |
| 365 | "I$ parity tl1\t: %u\n" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | #ifndef CONFIG_SMP |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | "Cpu0ClkTck\t: %016lx\n" |
| 368 | #endif |
| 369 | , |
| 370 | sparc_cpu_type, |
| 371 | sparc_fpu_type, |
David S. Miller | c3cf5e8 | 2009-01-21 23:16:40 -0800 | [diff] [blame] | 372 | sparc_pmu_type, |
David S. Miller | 90a6646 | 2006-03-08 17:18:19 -0800 | [diff] [blame] | 373 | prom_version, |
| 374 | ((tlb_type == hypervisor) ? |
| 375 | "sun4v" : |
| 376 | "sun4u"), |
David S. Miller | 4d45cba | 2005-11-11 12:48:56 -0800 | [diff] [blame] | 377 | ncpus_probed, |
| 378 | num_online_cpus(), |
David S. Miller | 80dc0d6 | 2005-09-26 00:32:17 -0700 | [diff] [blame] | 379 | dcache_parity_tl1_occurred, |
Fabio Massimo Di Nitto | 3ac66e3 | 2007-07-16 14:15:39 -0700 | [diff] [blame] | 380 | icache_parity_tl1_occurred |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | #ifndef CONFIG_SMP |
Fabio Massimo Di Nitto | 3ac66e3 | 2007-07-16 14:15:39 -0700 | [diff] [blame] | 382 | , cpu_data(0).clock_tick |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | #endif |
| 384 | ); |
| 385 | #ifdef CONFIG_SMP |
| 386 | smp_bogo(m); |
| 387 | #endif |
| 388 | mmu_info(m); |
| 389 | #ifdef CONFIG_SMP |
| 390 | smp_info(m); |
| 391 | #endif |
| 392 | return 0; |
| 393 | } |
| 394 | |
| 395 | static void *c_start(struct seq_file *m, loff_t *pos) |
| 396 | { |
| 397 | /* The pointer we are returning is arbitrary, |
| 398 | * it just has to be non-NULL and not IS_ERR |
| 399 | * in the success case. |
| 400 | */ |
| 401 | return *pos == 0 ? &c_start : NULL; |
| 402 | } |
| 403 | |
| 404 | static void *c_next(struct seq_file *m, void *v, loff_t *pos) |
| 405 | { |
| 406 | ++*pos; |
| 407 | return c_start(m, pos); |
| 408 | } |
| 409 | |
| 410 | static void c_stop(struct seq_file *m, void *v) |
| 411 | { |
| 412 | } |
| 413 | |
Jan Engelhardt | 872e2be | 2008-01-22 18:29:20 -0800 | [diff] [blame] | 414 | const struct seq_operations cpuinfo_op = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | .start =c_start, |
| 416 | .next = c_next, |
| 417 | .stop = c_stop, |
| 418 | .show = show_cpuinfo, |
| 419 | }; |
| 420 | |
| 421 | extern int stop_a_enabled; |
| 422 | |
| 423 | void sun_do_break(void) |
| 424 | { |
| 425 | if (!stop_a_enabled) |
| 426 | return; |
| 427 | |
| 428 | prom_printf("\n"); |
| 429 | flush_user_windows(); |
| 430 | |
| 431 | prom_cmdline(); |
| 432 | } |
Sam Ravnborg | 917c366 | 2009-01-08 16:58:20 -0800 | [diff] [blame] | 433 | EXPORT_SYMBOL(sun_do_break); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 434 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | int stop_a_enabled = 1; |
Sam Ravnborg | 917c366 | 2009-01-08 16:58:20 -0800 | [diff] [blame] | 436 | EXPORT_SYMBOL(stop_a_enabled); |