/* * linux/arch/alpha/kernel/setup.c * * Copyright (C) 1995 Linus Torvalds */ /* 2.3.x bootmem, 1999 Andrea Arcangeli */ /* * Bootup setup stuff. */ #include #include #include #include #include #include #include #include #include #include #include #include /* CONFIG_ALPHA_LCA etc */ #include #include #include #include #include #include #include #ifdef CONFIG_BLK_DEV_INITRD #include #endif #include extern struct notifier_block *panic_notifier_list; static int alpha_panic_event(struct notifier_block *, unsigned long, void *); static struct notifier_block alpha_panic_block = { alpha_panic_event, NULL, INT_MAX /* try to do it first */ }; #include #include #include #include #include #include #include #include #include #include "proto.h" #include "pci_impl.h" struct hwrpb_struct *hwrpb; unsigned long srm_hae; /* Which processor we booted from. */ int boot_cpuid; /* Using SRM callbacks for initial console output. This works from setup_arch() time through the end of init_IRQ(), as those places are under our control. By default, OFF; set it with a bootcommand arg of "srmcons". */ int srmcons_output = 0; /* Enforce a memory size limit; useful for testing. By default, none. */ unsigned long mem_size_limit = 0; #ifdef CONFIG_ALPHA_GENERIC struct alpha_machine_vector alpha_mv; int alpha_using_srm; #endif unsigned char aux_device_present = 0xaa; #define N(a) (sizeof(a)/sizeof(a[0])) static struct alpha_machine_vector *get_sysvec(long, long, long); static struct alpha_machine_vector *get_sysvec_byname(const char *); static void get_sysnames(long, long, char **, char **); /* * This is setup by the secondary bootstrap loader. Because * the zero page is zeroed out as soon as the vm system is * initialized, we need to copy things out into a more permanent * place. */ #define PARAM ZERO_PGE #define COMMAND_LINE ((char*)(PARAM + 0x0000)) #define COMMAND_LINE_SIZE 256 #define INITRD_START (*(unsigned long *) (PARAM+0x100)) #define INITRD_SIZE (*(unsigned long *) (PARAM+0x108)) static char command_line[COMMAND_LINE_SIZE]; char saved_command_line[COMMAND_LINE_SIZE]; /* * The format of "screen_info" is strange, and due to early * i386-setup code. This is just enough to make the console * code think we're on a VGA color display. */ struct screen_info screen_info = { orig_x: 0, orig_y: 25, orig_video_cols: 80, orig_video_lines: 25, orig_video_isVGA: 1, orig_video_points: 16 }; /* * The direct map I/O window, if any. This should be the same * for all busses, since it's used by virt_to_bus. */ unsigned long __direct_map_base; unsigned long __direct_map_size; /* * Declare all of the machine vectors. */ /* GCC 2.7.2 (on alpha at least) is lame. It does not support either __attribute__((weak)) or #pragma weak. Bypass it and talk directly to the assembler. */ #define WEAK(X) \ extern struct alpha_machine_vector X; \ asm(".weak "#X) WEAK(alcor_mv); WEAK(alphabook1_mv); WEAK(avanti_mv); WEAK(cabriolet_mv); WEAK(clipper_mv); WEAK(dp264_mv); WEAK(eb164_mv); WEAK(eb64p_mv); WEAK(eb66_mv); WEAK(eb66p_mv); WEAK(eiger_mv); WEAK(jensen_mv); WEAK(lx164_mv); WEAK(miata_mv); WEAK(mikasa_mv); WEAK(mikasa_primo_mv); WEAK(monet_mv); WEAK(nautilus_mv); WEAK(noname_mv); WEAK(noritake_mv); WEAK(noritake_primo_mv); WEAK(p2k_mv); WEAK(pc164_mv); WEAK(privateer_mv); WEAK(rawhide_mv); WEAK(ruffian_mv); WEAK(rx164_mv); WEAK(sable_mv); WEAK(sable_gamma_mv); WEAK(sx164_mv); WEAK(takara_mv); WEAK(webbrick_mv); WEAK(wildfire_mv); WEAK(xl_mv); WEAK(xlt_mv); #undef WEAK /* * I/O resources inherited from PeeCees. Except for perhaps the * turbochannel alphas, everyone has these on some sort of SuperIO chip. * * ??? If this becomes less standard, move the struct out into the * machine vector. */ static void __init reserve_std_resources(void) { static struct resource standard_io_resources[] = { { "rtc", -1, -1 }, { "dma1", 0x00, 0x1f }, { "pic1", 0x20, 0x3f }, { "timer", 0x40, 0x5f }, { "keyboard", 0x60, 0x6f }, { "dma page reg", 0x80, 0x8f }, { "pic2", 0xa0, 0xbf }, { "dma2", 0xc0, 0xdf }, }; struct resource *io = &ioport_resource; long i; if (hose_head) { struct pci_controler *hose; for (hose = hose_head; hose; hose = hose->next) if (hose->index == 0) { io = hose->io_space; break; } } /* Fix up for the Jensen's queer RTC placement. */ standard_io_resources[0].start = RTC_PORT(0); standard_io_resources[0].end = RTC_PORT(0) + 0x10; for (i = 0; i < N(standard_io_resources); ++i) request_resource(io, standard_io_resources+i); } #define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT) #define PFN_DOWN(x) ((x) >> PAGE_SHIFT) #define PFN_PHYS(x) ((x) << PAGE_SHIFT) #define PFN_MAX PFN_DOWN(0x80000000) #define for_each_mem_cluster(memdesc, cluster, i) \ for ((cluster) = (memdesc)->cluster, (i) = 0; \ (i) < (memdesc)->numclusters; (i)++, (cluster)++) static unsigned long __init get_mem_size_limit(char *s) { unsigned long end = 0; char *from = s; end = simple_strtoul(from, &from, 0); if ( *from == 'K' || *from == 'k' ) { end = end << 10; from++; } else if ( *from == 'M' || *from == 'm' ) { end = end << 20; from++; } else if ( *from == 'G' || *from == 'g' ) { end = end << 30; from++; } return end >> PAGE_SHIFT; /* Return the PFN of the limit. */ } static void __init setup_memory(void * kernel_end) { struct memclust_struct * cluster; struct memdesc_struct * memdesc; unsigned long start_pfn, bootmap_size, bootmap_pages, bootmap_start; unsigned long start, end; int i; /* Find free clusters, and init and free the bootmem accordingly. */ memdesc = (struct memdesc_struct *) (hwrpb->mddt_offset + (unsigned long) hwrpb); for_each_mem_cluster(memdesc, cluster, i) { printk("memcluster %d, usage %01lx, start %8lu, end %8lu\n", i, cluster->usage, cluster->start_pfn, cluster->start_pfn + cluster->numpages); /* Bit 0 is console/PALcode reserved. Bit 1 is non-volatile memory -- we might want to mark this for later. */ if (cluster->usage & 3) continue; end = cluster->start_pfn + cluster->numpages; if (end > max_low_pfn) max_low_pfn = end; } if (mem_size_limit && max_low_pfn >= mem_size_limit) { printk("setup: forcing memory size to %ldK (from %ldK).\n", mem_size_limit << (PAGE_SHIFT - 10), max_low_pfn << (PAGE_SHIFT - 10)); max_low_pfn = mem_size_limit; } /* Find the end of the memory used by the kernel. */ start_pfn = PFN_UP(virt_to_phys(kernel_end)); bootmap_start = -1; try_again: if (max_low_pfn <= start_pfn) panic("not enough memory to boot"); /* We need to know how many physically contiguous pages we'll need for the bootmap. */ bootmap_pages = bootmem_bootmap_pages(max_low_pfn); /* Now find a good region where to allocate the bootmap. */ for_each_mem_cluster(memdesc, cluster, i) { if (cluster->usage & 3) continue; start = cluster->start_pfn; end = start + cluster->numpages; if (end <= start_pfn) continue; if (start >= max_low_pfn) continue; if (start < start_pfn) start = start_pfn; if (end > max_low_pfn) end = max_low_pfn; if (end - start >= bootmap_pages) { bootmap_start = start; break; } } if (bootmap_start == -1) { max_low_pfn >>= 1; goto try_again; } /* Allocate the bootmap and mark the whole MM as reserved. */ bootmap_size = init_bootmem(bootmap_start, max_low_pfn); /* Mark the free regions. */ for_each_mem_cluster(memdesc, cluster, i) { if (cluster->usage & 3) continue; start = cluster->start_pfn; if (start < start_pfn) start = start_pfn; end = cluster->start_pfn + cluster->numpages; if (end > max_low_pfn) end = max_low_pfn; if (start >= end) continue; start = PFN_PHYS(start); end = PFN_PHYS(end); free_bootmem(start, end - start); printk("freeing pages %ld:%ld\n", PFN_UP(start), PFN_DOWN(end)); } /* Reserve the bootmap memory. */ reserve_bootmem(PFN_PHYS(bootmap_start), bootmap_size); #ifdef CONFIG_BLK_DEV_INITRD initrd_start = INITRD_START; if (initrd_start) { initrd_end = initrd_start+INITRD_SIZE; printk("Initial ramdisk at: 0x%p (%lu bytes)\n", (void *) initrd_start, INITRD_SIZE); if ((void *)initrd_end > phys_to_virt(PFN_PHYS(max_low_pfn))) { printk("initrd extends beyond end of memory " "(0x%08lx > 0x%p)\ndisabling initrd\n", initrd_end, phys_to_virt(PFN_PHYS(max_low_pfn))); initrd_start = initrd_end = 0; } else { reserve_bootmem(virt_to_phys((void *)initrd_start), INITRD_SIZE); } } #endif /* CONFIG_BLK_DEV_INITRD */ } int __init page_is_ram(unsigned long pfn) { struct memclust_struct * cluster; struct memdesc_struct * memdesc; int i; memdesc = (struct memdesc_struct *) (hwrpb->mddt_offset + (unsigned long) hwrpb); for_each_mem_cluster(memdesc, cluster, i) { if (pfn >= cluster->start_pfn && pfn < cluster->start_pfn + cluster->numpages) { return (cluster->usage & 3) ? 0 : 1; } } return 0; } #undef PFN_UP #undef PFN_DOWN #undef PFN_PHYS #undef PFN_MAX #if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SRM) /* * Manage the SRM callbacks as a "console". */ static struct console srmcons; void __init register_srm_console(void) { register_console(&srmcons); } void __init unregister_srm_console(void) { unregister_console(&srmcons); } static void srm_console_write(struct console *co, const char *s, unsigned count) { srm_printk(s); } static kdev_t srm_console_device(struct console *c) { /* Huh? */ return MKDEV(TTY_MAJOR, 64 + c->index); } static int srm_console_wait_key(struct console *co) { /* Huh? */ return 1; } static int __init srm_console_setup(struct console *co, char *options) { return 1; } static struct console srmcons = { "srm0", srm_console_write, NULL, srm_console_device, srm_console_wait_key, NULL, srm_console_setup, CON_PRINTBUFFER | CON_ENABLED, /* fake it out */ -1, 0, NULL }; #else void __init register_srm_console(void) { } void __init unregister_srm_console(void) { } #endif void __init setup_arch(char **cmdline_p) { struct alpha_machine_vector *vec = NULL; struct percpu_struct *cpu; char *type_name, *var_name, *p; extern char _end; void * kernel_end = &_end; /* end of kernel */ hwrpb = (struct hwrpb_struct*) __va(INIT_HWRPB->phys_addr); boot_cpuid = hard_smp_processor_id(); /* Register a call for panic conditions. */ notifier_chain_register(&panic_notifier_list, &alpha_panic_block); #ifdef CONFIG_ALPHA_GENERIC /* Assume that we've booted from SRM if we havn't booted from MILO. Detect the later by looking for "MILO" in the system serial nr. */ alpha_using_srm = strncmp((const char *)hwrpb->ssn, "MILO", 4) != 0; #endif /* If we are using SRM, we want to allow callbacks as early as possible, so do this NOW, and then they should work immediately thereafter. */ kernel_end = callback_init(kernel_end); /* * Locate the command line. */ /* Hack for Jensen... since we're restricted to 8 or 16 chars for boot flags depending on the boot mode, we need some shorthand. This should do for installation. */ if (strcmp(COMMAND_LINE, "INSTALL") == 0) { strcpy(command_line, "root=/dev/fd0 load_ramdisk=1"); } else { strncpy(command_line, COMMAND_LINE, sizeof command_line); command_line[sizeof(command_line)-1] = 0; } strcpy(saved_command_line, command_line); *cmdline_p = command_line; /* * Process command-line arguments. */ for (p = strtok(command_line, " \t"); p ; p = strtok(NULL, " \t")) { if (strncmp(p, "alpha_mv=", 9) == 0) { vec = get_sysvec_byname(p+9); continue; } if (strncmp(p, "cycle=", 6) == 0) { est_cycle_freq = simple_strtol(p+6, NULL, 0); continue; } if (strncmp(p, "mem=", 4) == 0) { mem_size_limit = get_mem_size_limit(p+4); continue; } if (strncmp(p, "srmcons", 7) == 0) { srmcons_output = 1; continue; } } /* Replace the command line, now that we've killed it with strtok. */ strcpy(command_line, saved_command_line); /* If we want SRM console printk echoing early, do it now. */ if (alpha_using_srm && srmcons_output) { register_srm_console(); } /* * Indentify and reconfigure for the current system. */ get_sysnames(hwrpb->sys_type, hwrpb->sys_variation, &type_name, &var_name); if (*var_name == '0') var_name = ""; if (!vec) { cpu = (struct percpu_struct*) ((char*)hwrpb + hwrpb->processor_offset); vec = get_sysvec(hwrpb->sys_type, hwrpb->sys_variation, cpu->type); } if (!vec) { panic("Unsupported system type: %s%s%s (%ld %ld)\n", type_name, (*var_name ? " variation " : ""), var_name, hwrpb->sys_type, hwrpb->sys_variation); } if (vec != &alpha_mv) { alpha_mv = *vec; } printk("Booting " #ifdef CONFIG_ALPHA_GENERIC "GENERIC " #endif "on %s%s%s using machine vector %s from %s\n", type_name, (*var_name ? " variation " : ""), var_name, alpha_mv.vector_name, (alpha_using_srm ? "SRM" : "MILO")); printk("Command line: %s\n", command_line); /* * Sync up the HAE. * Save the SRM's current value for restoration. */ srm_hae = *alpha_mv.hae_register; __set_hae(alpha_mv.hae_cache); /* Reset enable correctable error reports. */ wrmces(0x7); /* Find our memory. */ setup_memory(kernel_end); /* Initialize the machine. Usually has to do with setting up DMA windows and the like. */ if (alpha_mv.init_arch) alpha_mv.init_arch(); /* Reserve standard resources. */ reserve_std_resources(); /* * Give us a default console. TGA users will see nothing until * chr_dev_init is called, rather late in the boot sequence. */ #ifdef CONFIG_VT #if defined(CONFIG_VGA_CONSOLE) conswitchp = &vga_con; #elif defined(CONFIG_DUMMY_CONSOLE) conswitchp = &dummy_con; #endif #endif /* Default root filesystem to sda2. */ ROOT_DEV = to_kdev_t(0x0802); /* * Check ASN in HWRPB for validity, report if bad. * FIXME: how was this failing? Should we trust it instead, * and copy the value into alpha_mv.max_asn? */ if (hwrpb->max_asn != MAX_ASN) { printk("Max ASN from HWRPB is bad (0x%lx)\n", hwrpb->max_asn); } /* * Identify the flock of penguins. */ #ifdef CONFIG_SMP setup_smp(); #endif paging_init(); } static char sys_unknown[] = "Unknown"; static char systype_names[][16] = { "0", "ADU", "Cobra", "Ruby", "Flamingo", "Mannequin", "Jensen", "Pelican", "Morgan", "Sable", "Medulla", "Noname", "Turbolaser", "Avanti", "Mustang", "Alcor", "Tradewind", "Mikasa", "EB64", "EB66", "EB64+", "AlphaBook1", "Rawhide", "K2", "Lynx", "XL", "EB164", "Noritake", "Cortex", "29", "Miata", "XXM", "Takara", "Yukon", "Tsunami", "Wildfire", "CUSCO", "Eiger", "Titan" }; static char unofficial_names[][8] = {"100", "Ruffian"}; static char api_names[][16] = {"200", "Nautilus"}; static char eb164_names[][8] = {"EB164", "PC164", "LX164", "SX164", "RX164"}; static int eb164_indices[] = {0,0,0,1,1,1,1,1,2,2,2,2,3,3,3,3,4}; static char alcor_names[][16] = {"Alcor", "Maverick", "Bret"}; static int alcor_indices[] = {0,0,0,1,1,1,0,0,0,0,0,0,2,2,2,2,2,2}; static char eb64p_names[][16] = {"EB64+", "Cabriolet", "AlphaPCI64"}; static int eb64p_indices[] = {0,0,1,2}; static char eb66_names[][8] = {"EB66", "EB66+"}; static int eb66_indices[] = {0,0,1}; static char rawhide_names[][16] = { "Dodge", "Wrangler", "Durango", "Tincup", "DaVinci" }; static int rawhide_indices[] = {0,0,0,1,1,2,2,3,3,4,4}; static char titan_names[][16] = { "0", "Privateer" }; static int titan_indices[] = {0,1}; static char tsunami_names[][16] = { "0", "DP264", "Warhol", "Windjammer", "Monet", "Clipper", "Goldrush", "Webbrick", "Catamaran" }; static int tsunami_indices[] = {0,1,2,3,4,5,6,7,8}; static struct alpha_machine_vector * __init get_sysvec(long type, long variation, long cpu) { static struct alpha_machine_vector *systype_vecs[] __initlocaldata = { NULL, /* 0 */ NULL, /* ADU */ NULL, /* Cobra */ NULL, /* Ruby */ NULL, /* Flamingo */ NULL, /* Mannequin */ &jensen_mv, NULL, /* Pelican */ NULL, /* Morgan */ NULL, /* Sable -- see below. */ NULL, /* Medulla */ &noname_mv, NULL, /* Turbolaser */ &avanti_mv, NULL, /* Mustang */ &alcor_mv, /* Alcor, Bret, Maverick. */ NULL, /* Tradewind */ NULL, /* Mikasa -- see below. */ NULL, /* EB64 */ NULL, /* EB66 -- see variation. */ NULL, /* EB64+ -- see variation. */ &alphabook1_mv, &rawhide_mv, NULL, /* K2 */ NULL, /* Lynx */ &xl_mv, NULL, /* EB164 -- see variation. */ NULL, /* Noritake -- see below. */ NULL, /* Cortex */ NULL, /* 29 */ &miata_mv, NULL, /* XXM */ &takara_mv, NULL, /* Yukon */ NULL, /* Tsunami -- see variation. */ &wildfire_mv, /* Wildfire */ NULL, /* CUSCO */ &eiger_mv, /* Eiger */ NULL, /* Titan */ }; static struct alpha_machine_vector *unofficial_vecs[] __initlocaldata = { NULL, /* 100 */ &ruffian_mv, }; static struct alpha_machine_vector *api_vecs[] __initlocaldata = { NULL, /* 200 */ &nautilus_mv, }; static struct alpha_machine_vector *alcor_vecs[] __initlocaldata = { &alcor_mv, &xlt_mv, &xlt_mv }; static struct alpha_machine_vector *eb164_vecs[] __initlocaldata = { &eb164_mv, &pc164_mv, &lx164_mv, &sx164_mv, &rx164_mv }; static struct alpha_machine_vector *eb64p_vecs[] __initlocaldata = { &eb64p_mv, &cabriolet_mv, NULL /* AlphaPCI64 */ }; static struct alpha_machine_vector *eb66_vecs[] __initlocaldata = { &eb66_mv, &eb66p_mv }; static struct alpha_machine_vector *titan_vecs[] __initlocaldata = { NULL, &privateer_mv, /* privateer */ }; static struct alpha_machine_vector *tsunami_vecs[] __initlocaldata = { NULL, &dp264_mv, /* dp264 */ &dp264_mv, /* warhol */ &dp264_mv, /* windjammer */ &monet_mv, /* monet */ &clipper_mv, /* clipper */ &dp264_mv, /* goldrush */ &webbrick_mv, /* webbrick */ &dp264_mv, /* catamaran */ }; /* ??? Do we need to distinguish between Rawhides? */ struct alpha_machine_vector *vec; /* Restore real CABRIO and EB66+ family names, ie EB64+ and EB66 */ if (type < 0) type = -type; /* Search the system tables first... */ vec = NULL; if (type < N(systype_vecs)) { vec = systype_vecs[type]; } else if ((type > ST_API_BIAS) && (type - ST_API_BIAS) < N(api_vecs)) { vec = api_vecs[type - ST_API_BIAS]; } else if ((type > ST_UNOFFICIAL_BIAS) && (type - ST_UNOFFICIAL_BIAS) < N(unofficial_vecs)) { vec = unofficial_vecs[type - ST_UNOFFICIAL_BIAS]; } /* If we've not found one, try for a variation. */ if (!vec) { /* Member ID is a bit-field. */ long member = (variation >> 10) & 0x3f; switch (type) { case ST_DEC_ALCOR: if (member < N(alcor_indices)) vec = alcor_vecs[alcor_indices[member]]; break; case ST_DEC_EB164: if (member < N(eb164_indices)) vec = eb164_vecs[eb164_indices[member]]; break; case ST_DEC_EB64P: if (member < N(eb64p_indices)) vec = eb64p_vecs[eb64p_indices[member]]; break; case ST_DEC_EB66: if (member < N(eb66_indices)) vec = eb66_vecs[eb66_indices[member]]; break; case ST_DEC_TITAN: if (member < N(titan_indices)) vec = titan_vecs[titan_indices[member]]; break; case ST_DEC_TSUNAMI: if (member < N(tsunami_indices)) vec = tsunami_vecs[tsunami_indices[member]]; break; case ST_DEC_1000: cpu &= 0xffffffff; if (cpu == EV5_CPU || cpu == EV56_CPU) vec = &mikasa_primo_mv; else vec = &mikasa_mv; break; case ST_DEC_NORITAKE: cpu &= 0xffffffff; if (cpu == EV5_CPU || cpu == EV56_CPU) vec = &noritake_primo_mv; else vec = &noritake_mv; break; case ST_DEC_2100_A500: cpu &= 0xffffffff; if (cpu == EV5_CPU || cpu == EV56_CPU) vec = &sable_gamma_mv; else vec = &sable_mv; break; } } return vec; } static struct alpha_machine_vector * __init get_sysvec_byname(const char *name) { static struct alpha_machine_vector *all_vecs[] __initlocaldata = { &alcor_mv, &alphabook1_mv, &avanti_mv, &cabriolet_mv, &clipper_mv, &dp264_mv, &eb164_mv, &eb64p_mv, &eb66_mv, &eb66p_mv, &eiger_mv, &jensen_mv, &lx164_mv, &miata_mv, &mikasa_mv, &mikasa_primo_mv, &monet_mv, &nautilus_mv, &noname_mv, &noritake_mv, &noritake_primo_mv, &p2k_mv, &pc164_mv, &privateer_mv, &rawhide_mv, &ruffian_mv, &rx164_mv, &sable_mv, &sable_gamma_mv, &sx164_mv, &takara_mv, &webbrick_mv, &wildfire_mv, &xl_mv, &xlt_mv }; int i, n = sizeof(all_vecs)/sizeof(*all_vecs); for (i = 0; i < n; ++i) { struct alpha_machine_vector *mv = all_vecs[i]; if (strcasecmp(mv->vector_name, name) == 0) return mv; } return NULL; } static void get_sysnames(long type, long variation, char **type_name, char **variation_name) { long member; /* Restore real CABRIO and EB66+ family names, ie EB64+ and EB66 */ if (type < 0) type = -type; /* If not in the tables, make it UNKNOWN, else set type name to family */ if (type < N(systype_names)) { *type_name = systype_names[type]; } else if ((type > ST_API_BIAS) && (type - ST_API_BIAS) < N(api_names)) { *type_name = api_names[type - ST_API_BIAS]; } else if ((type > ST_UNOFFICIAL_BIAS) && (type - ST_UNOFFICIAL_BIAS) < N(unofficial_names)) { *type_name = unofficial_names[type - ST_UNOFFICIAL_BIAS]; } else { *type_name = sys_unknown; *variation_name = sys_unknown; return; } /* Set variation to "0"; if variation is zero, done */ *variation_name = systype_names[0]; if (variation == 0) { return; } member = (variation >> 10) & 0x3f; /* member ID is a bit-field */ switch (type) { /* select by family */ default: /* default to variation "0" for now */ break; case ST_DEC_EB164: if (member < N(eb164_indices)) *variation_name = eb164_names[eb164_indices[member]]; break; case ST_DEC_ALCOR: if (member < N(alcor_indices)) *variation_name = alcor_names[alcor_indices[member]]; break; case ST_DEC_EB64P: if (member < N(eb64p_indices)) *variation_name = eb64p_names[eb64p_indices[member]]; break; case ST_DEC_EB66: if (member < N(eb66_indices)) *variation_name = eb66_names[eb66_indices[member]]; break; case ST_DEC_RAWHIDE: if (member < N(rawhide_indices)) *variation_name = rawhide_names[rawhide_indices[member]]; break; case ST_DEC_TITAN: if (member < N(titan_indices)) *variation_name = titan_names[titan_indices[member]]; break; case ST_DEC_TSUNAMI: if (member < N(tsunami_indices)) *variation_name = tsunami_names[tsunami_indices[member]]; break; } } /* * A change was made to the HWRPB via an ECO and the following code * tracks a part of the ECO. In HWRPB versions less than 5, the ECO * was not implemented in the console firmware. If it's revision 5 or * greater we can get the name of the platform as an ASCII string from * the HWRPB. That's what this function does. It checks the revision * level and if the string is in the HWRPB it returns the address of * the string--a pointer to the name of the platform. * * Returns: * - Pointer to a ASCII string if it's in the HWRPB * - Pointer to a blank string if the data is not in the HWRPB. */ static char * platform_string(void) { struct dsr_struct *dsr; static char unk_system_string[] = "N/A"; /* Go to the console for the string pointer. * If the rpb_vers is not 5 or greater the rpb * is old and does not have this data in it. */ if (hwrpb->revision < 5) return (unk_system_string); else { /* The Dynamic System Recognition struct * has the system platform name starting * after the character count of the string. */ dsr = ((struct dsr_struct *) ((char *)hwrpb + hwrpb->dsr_offset)); return ((char *)dsr + (dsr->sysname_off + sizeof(long))); } } static int get_nr_processors(struct percpu_struct *cpubase, unsigned long num) { struct percpu_struct *cpu; int i, count = 0; for (i = 0; i < num; i++) { cpu = (struct percpu_struct *) ((char *)cpubase + i*hwrpb->processor_size); if ((cpu->flags & 0x1cc) == 0x1cc) count++; } return count; } /* * BUFFER is PAGE_SIZE bytes long. */ int get_cpuinfo(char *buffer) { extern struct unaligned_stat { unsigned long count, va, pc; } unaligned[2]; static char cpu_names[][8] = { "EV3", "EV4", "Simulate", "LCA4", "EV5", "EV45", "EV56", "EV6", "PCA56", "PCA57", "EV67", "EV68CB", "EV68AL" }; struct percpu_struct *cpu; unsigned int cpu_index; char *cpu_name; char *systype_name; char *sysvariation_name; int len, nr_processors; cpu = (struct percpu_struct*)((char*)hwrpb + hwrpb->processor_offset); cpu_index = (unsigned) (cpu->type - 1); cpu_name = "Unknown"; if (cpu_index < N(cpu_names)) cpu_name = cpu_names[cpu_index]; get_sysnames(hwrpb->sys_type, hwrpb->sys_variation, &systype_name, &sysvariation_name); nr_processors = get_nr_processors(cpu, hwrpb->nr_processors); len = sprintf(buffer, "cpu\t\t\t: Alpha\n" "cpu model\t\t: %s\n" "cpu variation\t\t: %ld\n" "cpu revision\t\t: %ld\n" "cpu serial number\t: %s\n" "system type\t\t: %s\n" "system variation\t: %s\n" "system revision\t\t: %ld\n" "system serial number\t: %s\n" "cycle frequency [Hz]\t: %lu %s\n" "timer frequency [Hz]\t: %lu.%02lu\n" "page size [bytes]\t: %ld\n" "phys. address bits\t: %ld\n" "max. addr. space #\t: %ld\n" "BogoMIPS\t\t: %lu.%02lu\n" "kernel unaligned acc\t: %ld (pc=%lx,va=%lx)\n" "user unaligned acc\t: %ld (pc=%lx,va=%lx)\n" "platform string\t\t: %s\n" "cpus detected\t\t: %d\n", cpu_name, cpu->variation, cpu->revision, (char*)cpu->serial_no, systype_name, sysvariation_name, hwrpb->sys_revision, (char*)hwrpb->ssn, est_cycle_freq ? : hwrpb->cycle_freq, est_cycle_freq ? "est." : "", hwrpb->intr_freq / 4096, (100 * hwrpb->intr_freq / 4096) % 100, hwrpb->pagesize, hwrpb->pa_bits, hwrpb->max_asn, loops_per_sec / 500000, (loops_per_sec / 5000) % 100, unaligned[0].count, unaligned[0].pc, unaligned[0].va, unaligned[1].count, unaligned[1].pc, unaligned[1].va, platform_string(), nr_processors); #ifdef CONFIG_SMP len += smp_info(buffer+len); #endif return len; } static int alpha_panic_event(struct notifier_block *this, unsigned long event, void *ptr) { #if 1 /* FIXME FIXME FIXME */ /* If we are using SRM and serial console, just hard halt here. */ if (alpha_using_srm && srmcons_output) __halt(); #endif return NOTIFY_DONE; }