diff options
Diffstat (limited to 'arch/x86/kernel/setup_64.c')
| -rw-r--r-- | arch/x86/kernel/setup_64.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c index cdcba697522..31322d42eaa 100644 --- a/arch/x86/kernel/setup_64.c +++ b/arch/x86/kernel/setup_64.c @@ -302,6 +302,11 @@ void __init setup_arch(char **cmdline_p) dmi_scan_machine(); +#ifdef CONFIG_SMP + /* setup to use the static apicid table during kernel startup */ + x86_cpu_to_apicid_ptr = (void *)&x86_cpu_to_apicid_init; +#endif + #ifdef CONFIG_ACPI /* * Initialize the ACPI boot-time table parser (gets the RSDP and SDT). @@ -554,7 +559,7 @@ static void __init amd_detect_cmp(struct cpuinfo_x86 *c) but in the same order as the HT nodeids. If that doesn't result in a usable node fall back to the path for the previous case. */ - int ht_nodeid = apicid - (cpu_data[0].phys_proc_id << bits); + int ht_nodeid = apicid - (cpu_data(0).phys_proc_id << bits); if (ht_nodeid >= 0 && apicid_to_node[ht_nodeid] != NUMA_NO_NODE) node = apicid_to_node[ht_nodeid]; @@ -878,6 +883,7 @@ void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c) #ifdef CONFIG_SMP c->phys_proc_id = (cpuid_ebx(1) >> 24) & 0xff; + c->cpu_index = 0; #endif } @@ -984,6 +990,7 @@ void __cpuinit print_cpu_info(struct cpuinfo_x86 *c) static int show_cpuinfo(struct seq_file *m, void *v) { struct cpuinfo_x86 *c = v; + int cpu = 0; /* * These flag bits must match the definitions in <asm/cpufeature.h>. @@ -1062,8 +1069,9 @@ static int show_cpuinfo(struct seq_file *m, void *v) #ifdef CONFIG_SMP - if (!cpu_online(c-cpu_data)) + if (!cpu_online(c->cpu_index)) return 0; + cpu = c->cpu_index; #endif seq_printf(m,"processor\t: %u\n" @@ -1071,7 +1079,7 @@ static int show_cpuinfo(struct seq_file *m, void *v) "cpu family\t: %d\n" "model\t\t: %d\n" "model name\t: %s\n", - (unsigned)(c-cpu_data), + (unsigned)cpu, c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown", c->x86, (int)c->x86_model, @@ -1083,7 +1091,7 @@ static int show_cpuinfo(struct seq_file *m, void *v) seq_printf(m, "stepping\t: unknown\n"); if (cpu_has(c,X86_FEATURE_TSC)) { - unsigned int freq = cpufreq_quick_get((unsigned)(c-cpu_data)); + unsigned int freq = cpufreq_quick_get((unsigned)cpu); if (!freq) freq = cpu_khz; seq_printf(m, "cpu MHz\t\t: %u.%03u\n", @@ -1096,7 +1104,6 @@ static int show_cpuinfo(struct seq_file *m, void *v) #ifdef CONFIG_SMP if (smp_num_siblings * c->x86_max_cores > 1) { - int cpu = c - cpu_data; seq_printf(m, "physical id\t: %d\n", c->phys_proc_id); seq_printf(m, "siblings\t: %d\n", cpus_weight(per_cpu(cpu_core_map, cpu))); @@ -1154,12 +1161,16 @@ static int show_cpuinfo(struct seq_file *m, void *v) static void *c_start(struct seq_file *m, loff_t *pos) { - return *pos < NR_CPUS ? cpu_data + *pos : NULL; + if (*pos == 0) /* just in case, cpu 0 is not the first */ + *pos = first_cpu(cpu_possible_map); + if ((*pos) < NR_CPUS && cpu_possible(*pos)) + return &cpu_data(*pos); + return NULL; } static void *c_next(struct seq_file *m, void *v, loff_t *pos) { - ++*pos; + *pos = next_cpu(*pos, cpu_possible_map); return c_start(m, pos); } |