/* Set when the idlers are all forked */
int smp_threads_ready;
-char cpu_sibling_map[NR_CPUS] __cacheline_aligned;
+cpumask_t cpu_sibling_map[NR_CPUS] __cacheline_aligned;
/*
* Trampoline 80x86 program as an array.
Dprintk("CPU has booted.\n");
} else {
boot_error = 1;
- if (*((volatile unsigned char *)phys_to_virt(8192))
+ if (*((volatile unsigned char *)phys_to_virt(SMP_TRAMPOLINE_BASE))
== 0xA5)
/* trampoline started but...? */
printk("Stuck ??\n");
clear_bit(cpu, &cpu_initialized); /* was set by cpu_init() */
cpucount--;
}
-
- /* mark "stuck" area as not stuck */
- *((volatile unsigned *)phys_to_virt(8192)) = 0;
}
cycles_t cacheflush_time;
if (apicid == boot_cpu_id || (apicid == BAD_APICID))
continue;
- if (!cpu_isset(apicid, phys_cpu_present_map))
+ if (!physid_isset(apicid, phys_cpu_present_map))
continue;
if ((max_cpus >= 0) && (max_cpus <= cpucount+1))
continue;
}
/*
- * If Hyper-Threading is avaialble, construct cpu_sibling_map[], so
- * that we can tell the sibling CPU efficiently.
+ * Construct cpu_sibling_map[], so that we can tell the
+ * sibling CPU efficiently.
*/
- if (cpu_has_ht && smp_num_siblings > 1) {
- for (cpu = 0; cpu < NR_CPUS; cpu++)
- cpu_sibling_map[cpu] = NO_PROC_ID;
-
- for (cpu = 0; cpu < NR_CPUS; cpu++) {
- int i;
- if (!cpu_isset(cpu, cpu_callout_map))
- continue;
+ for (cpu = 0; cpu < NR_CPUS; cpu++)
+ cpus_clear(cpu_sibling_map[cpu]);
+
+ for (cpu = 0; cpu < NR_CPUS; cpu++) {
+ int siblings = 0;
+ int i;
+ if (!cpu_isset(cpu, cpu_callout_map))
+ continue;
+ if (smp_num_siblings > 1) {
for (i = 0; i < NR_CPUS; i++) {
- if (i == cpu || !cpu_isset(i, cpu_callout_map))
+ if (!cpu_isset(i, cpu_callout_map))
continue;
if (phys_proc_id[cpu] == phys_proc_id[i]) {
- cpu_sibling_map[cpu] = i;
- break;
+ siblings++;
+ cpu_set(i, cpu_sibling_map[cpu]);
}
}
- if (cpu_sibling_map[cpu] == (char)NO_PROC_ID) {
- smp_num_siblings = 1;
- printk(KERN_WARNING "WARNING: No sibling found for CPU %d.\n", cpu);
- }
+ } else {
+ siblings++;
+ cpu_set(cpu, cpu_sibling_map[cpu]);
}
+
+ if (siblings != smp_num_siblings) {
+ printk(KERN_WARNING
+ "WARNING: %d siblings found for CPU%d, should be %d\n",
+ siblings, cpu, smp_num_siblings);
+ smp_num_siblings = siblings;
+ }
}
Dprintk("Boot done.\n");