diff options
Diffstat (limited to 'arch/ia64/kernel/setup.c')
| -rw-r--r-- | arch/ia64/kernel/setup.c | 91 |
1 files changed, 62 insertions, 29 deletions
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index f167b89f24eb..6e19da122ae3 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -90,8 +90,6 @@ static struct resource code_resource = { .name = "Kernel code", .flags = IORESOURCE_BUSY | IORESOURCE_MEM }; -extern void efi_initialize_iomem_resources(struct resource *, - struct resource *); extern char _text[], _end[], _etext[]; unsigned long ia64_max_cacheline_size; @@ -250,6 +248,12 @@ reserve_memory (void) } #endif +#ifdef CONFIG_PROC_VMCORE + if (reserve_elfcorehdr(&rsvd_region[n].start, + &rsvd_region[n].end) == 0) + n++; +#endif + efi_memmap_init(&rsvd_region[n].start, &rsvd_region[n].end); n++; @@ -261,7 +265,7 @@ reserve_memory (void) * appropriate after a kernel panic. */ { - char *from = strstr(saved_command_line, "crashkernel="); + char *from = strstr(boot_command_line, "crashkernel="); unsigned long base, size; if (from) { size = memparse(from + 12, &from); @@ -452,6 +456,30 @@ static int __init parse_elfcorehdr(char *arg) return 0; } early_param("elfcorehdr", parse_elfcorehdr); + +int __init reserve_elfcorehdr(unsigned long *start, unsigned long *end) +{ + unsigned long length; + + /* We get the address using the kernel command line, + * but the size is extracted from the EFI tables. + * Both address and size are required for reservation + * to work properly. + */ + + if (elfcorehdr_addr >= ELFCORE_ADDR_MAX) + return -EINVAL; + + if ((length = vmcore_find_descriptor_size(elfcorehdr_addr)) == 0) { + elfcorehdr_addr = ELFCORE_ADDR_MAX; + return -EINVAL; + } + + *start = (unsigned long)__va(elfcorehdr_addr); + *end = *start + length; + return 0; +} + #endif /* CONFIG_PROC_VMCORE */ void __init @@ -462,7 +490,7 @@ setup_arch (char **cmdline_p) ia64_patch_vtop((u64) __start___vtop_patchlist, (u64) __end___vtop_patchlist); *cmdline_p = __va(ia64_boot_param->command_line); - strlcpy(saved_command_line, *cmdline_p, COMMAND_LINE_SIZE); + strlcpy(boot_command_line, *cmdline_p, COMMAND_LINE_SIZE); efi_init(); io_port_init(); @@ -568,34 +596,31 @@ show_cpuinfo (struct seq_file *m, void *v) { 1UL << 1, "spontaneous deferral"}, { 1UL << 2, "16-byte atomic ops" } }; - char 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; /* 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); @@ -611,10 +636,10 @@ show_cpuinfo (struct seq_file *m, void *v) "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" + "cpu MHz : %lu.%03lu\n" "itc MHz : %lu.%06lu\n" "BogoMIPS : %lu.%02lu\n", cpunum, c->vendor, c->family, c->model, @@ -666,12 +691,15 @@ struct seq_operations cpuinfo_op = { .show = show_cpuinfo }; -static char brandname[128]; +#define MAX_BRANDS 8 +static char brandname[MAX_BRANDS][128]; static char * __cpuinit get_model_name(__u8 family, __u8 model) { + static int overflow; char brand[128]; + int i; memcpy(brand, "Unknown", 8); if (ia64_pal_get_brand_info(brand)) { @@ -683,12 +711,17 @@ get_model_name(__u8 family, __u8 model) 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); + for (i = 0; i < MAX_BRANDS; i++) + if (strcmp(brandname[i], brand) == 0) + return brandname[i]; + for (i = 0; i < MAX_BRANDS; i++) + if (brandname[i][0] == '\0') + return strcpy(brandname[i], brand); + if (overflow++ == 0) + printk(KERN_ERR + "%s: Table overflow. Some processor model information will be missing\n", + __FUNCTION__); + return "Unknown"; } static void __cpuinit |