X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=arch%2Fia64%2Fkernel%2Fsetup.c;h=83c2629e1c4c001cc56bae5fec820863dc9339fb;hb=958b7f37ee0fb2846c8d44310a68ae9605614ff9;hp=7ad0d9cc6db65c1503cc3a69259954633c6c5991;hpb=4bf311ddfbffe12d41ad1a3c311ab727db6f72cb;p=powerpc.git diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index 7ad0d9cc6d..83c2629e1c 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -43,6 +43,8 @@ #include #include #include +#include +#include #include #include @@ -54,7 +56,6 @@ #include #include #include -#include #include #include #include @@ -253,6 +254,47 @@ reserve_memory (void) efi_memmap_init(&rsvd_region[n].start, &rsvd_region[n].end); n++; +#ifdef CONFIG_KEXEC + /* crashkernel=size@offset specifies the size to reserve for a crash + * kernel. If offset is 0, then it is determined automatically. + * By reserving this memory we guarantee that linux never set's it + * up as a DMA target.Useful for holding code to do something + * appropriate after a kernel panic. + */ + { + char *from = strstr(saved_command_line, "crashkernel="); + unsigned long base, size; + if (from) { + size = memparse(from + 12, &from); + if (*from == '@') + base = memparse(from+1, &from); + else + base = 0; + if (size) { + if (!base) { + sort_regions(rsvd_region, n); + base = kdump_find_rsvd_region(size, + rsvd_region, n); + } + if (base != ~0UL) { + rsvd_region[n].start = + (unsigned long)__va(base); + rsvd_region[n].end = + (unsigned long)__va(base + size); + n++; + crashk_res.start = base; + crashk_res.end = base + size - 1; + } + } + } + efi_memmap_res.start = ia64_boot_param->efi_memmap; + efi_memmap_res.end = efi_memmap_res.start + + ia64_boot_param->efi_memmap_size; + boot_param_res.start = __pa(ia64_boot_param); + boot_param_res.end = boot_param_res.start + + sizeof(*ia64_boot_param); + } +#endif /* end of memory marker */ rsvd_region[n].start = ~0UL; rsvd_region[n].end = ~0UL; @@ -264,6 +306,7 @@ reserve_memory (void) sort_regions(rsvd_region, num_rsvd_regions); } + /** * find_initrd - get initrd parameters from the boot parameter structure * @@ -397,6 +440,21 @@ static __init int setup_nomca(char *s) } early_param("nomca", setup_nomca); +#ifdef CONFIG_PROC_VMCORE +/* elfcorehdr= specifies the location of elf core header + * stored by the crashed kernel. + */ +static int __init parse_elfcorehdr(char *arg) +{ + if (!arg) + return -EINVAL; + + elfcorehdr_addr = memparse(arg, &arg); + return 0; +} +early_param("elfcorehdr", parse_elfcorehdr); +#endif /* CONFIG_PROC_VMCORE */ + void __init setup_arch (char **cmdline_p) { @@ -458,6 +516,8 @@ setup_arch (char **cmdline_p) cpu_init(); /* initialize the bootstrap CPU */ mmu_context_init(); /* initialize context_id bitmap */ + check_sal_cache_flush(); + #ifdef CONFIG_ACPI acpi_boot_init(); #endif @@ -509,40 +569,31 @@ show_cpuinfo (struct seq_file *m, void *v) { 1UL << 1, "spontaneous deferral"}, { 1UL << 2, "16-byte atomic ops" } }; - char family[32], features[128], *cp, sep; + char features[128], *cp, *sep; struct cpuinfo_ia64 *c = v; unsigned long mask; unsigned long proc_freq; - int i; + int i, size; mask = c->features; - switch (c->family) { - case 0x07: memcpy(family, "Itanium", 8); break; - case 0x1f: memcpy(family, "Itanium 2", 10); break; - default: sprintf(family, "%u", c->family); break; - } - /* build the feature string: */ - memcpy(features, " standard", 10); + memcpy(features, "standard", 9); cp = features; - sep = 0; - for (i = 0; i < (int) ARRAY_SIZE(feature_bits); ++i) { + size = sizeof(features); + sep = ""; + for (i = 0; i < ARRAY_SIZE(feature_bits) && size > 1; ++i) { if (mask & feature_bits[i].mask) { - if (sep) - *cp++ = sep; - sep = ','; - *cp++ = ' '; - strcpy(cp, feature_bits[i].feature_name); - cp += strlen(feature_bits[i].feature_name); + cp += snprintf(cp, size, "%s%s", sep, + feature_bits[i].feature_name), + sep = ", "; mask &= ~feature_bits[i].mask; + size = sizeof(features) - (cp - features); } } - if (mask) { - /* print unknown features as a hex value: */ - if (sep) - *cp++ = sep; - sprintf(cp, " 0x%lx", mask); + if (mask && size > 1) { + /* print unknown features as a hex value */ + snprintf(cp, size, "%s0x%lx", sep, mask); } proc_freq = cpufreq_quick_get(cpunum); @@ -553,17 +604,19 @@ show_cpuinfo (struct seq_file *m, void *v) "processor : %d\n" "vendor : %s\n" "arch : IA-64\n" - "family : %s\n" + "family : %u\n" "model : %u\n" + "model name : %s\n" "revision : %u\n" "archrev : %u\n" - "features :%s\n" /* don't change this---it _is_ right! */ + "features : %s\n" "cpu number : %lu\n" "cpu regs : %u\n" "cpu MHz : %lu.%06lu\n" "itc MHz : %lu.%06lu\n" "BogoMIPS : %lu.%02lu\n", - cpunum, c->vendor, family, c->model, c->revision, c->archrev, + cpunum, c->vendor, c->family, c->model, + c->model_name, c->revision, c->archrev, features, c->ppn, c->number, proc_freq / 1000, proc_freq % 1000, c->itc_freq / 1000000, c->itc_freq % 1000000, @@ -611,6 +664,31 @@ struct seq_operations cpuinfo_op = { .show = show_cpuinfo }; +static char brandname[128]; + +static char * __cpuinit +get_model_name(__u8 family, __u8 model) +{ + char brand[128]; + + memcpy(brand, "Unknown", 8); + if (ia64_pal_get_brand_info(brand)) { + if (family == 0x7) + memcpy(brand, "Merced", 7); + else if (family == 0x1f) switch (model) { + case 0: memcpy(brand, "McKinley", 9); break; + case 1: memcpy(brand, "Madison", 8); break; + case 2: memcpy(brand, "Madison up to 9M cache", 23); break; + } + } + if (brandname[0] == '\0') + return strcpy(brandname, brand); + else if (strcmp(brandname, brand) == 0) + return brandname; + else + return kstrdup(brand, GFP_KERNEL); +} + static void __cpuinit identify_cpu (struct cpuinfo_ia64 *c) { @@ -640,7 +718,6 @@ identify_cpu (struct cpuinfo_ia64 *c) pal_status_t status; unsigned long impl_va_msb = 50, phys_addr_size = 44; /* Itanium defaults */ int i; - for (i = 0; i < 5; ++i) cpuid.bits[i] = ia64_get_cpuid(i); @@ -663,6 +740,7 @@ identify_cpu (struct cpuinfo_ia64 *c) c->family = cpuid.field.family; c->archrev = cpuid.field.archrev; c->features = cpuid.field.features; + c->model_name = get_model_name(c->family, c->model); status = ia64_pal_vm_summary(&vm1, &vm2); if (status == PAL_STATUS_SUCCESS) {