#include <asm/atomic.h>
#include <asm/cpu.h>
#include <asm/processor.h>
+#include <asm/r4k-timer.h>
#include <asm/system.h>
#include <asm/mmu_context.h>
-#include <asm/smp.h>
#include <asm/time.h>
#ifdef CONFIG_MIPS_MT_SMTC
EXPORT_SYMBOL(phys_cpu_present_map);
EXPORT_SYMBOL(cpu_online_map);
-extern void __init calibrate_delay(void);
extern void cpu_idle(void);
+/* Number of TCs (or siblings in Intel speak) per CPU core */
+int smp_num_siblings = 1;
+EXPORT_SYMBOL(smp_num_siblings);
+
+/* representing the TCs (or siblings in Intel speak) of each logical CPU */
+cpumask_t cpu_sibling_map[NR_CPUS] __read_mostly;
+EXPORT_SYMBOL(cpu_sibling_map);
+
+/* representing cpus for which sibling maps can be computed */
+static cpumask_t cpu_sibling_setup_map;
+
+static inline void set_cpu_sibling_map(int cpu)
+{
+ int i;
+
+ cpu_set(cpu, cpu_sibling_setup_map);
+
+ if (smp_num_siblings > 1) {
+ for_each_cpu_mask(i, cpu_sibling_setup_map) {
+ if (cpu_data[cpu].core == cpu_data[i].core) {
+ cpu_set(i, cpu_sibling_map[cpu]);
+ cpu_set(cpu, cpu_sibling_map[i]);
+ }
+ }
+ } else
+ cpu_set(cpu, cpu_sibling_map[cpu]);
+}
+
+struct plat_smp_ops *mp_ops;
+
+__cpuinit void register_smp_ops(struct plat_smp_ops *ops)
+{
+ if (mp_ops)
+ printk(KERN_WARNING "Overriding previously set SMP ops\n");
+
+ mp_ops = ops;
+}
+
/*
* First C code run on the secondary CPUs after being started up by
* the master.
cpu_report();
per_cpu_trap_init();
mips_clockevent_init();
- prom_init_secondary();
+ mp_ops->init_secondary();
/*
* XXX parity protection should be folded in here when it's converted
cpu = smp_processor_id();
cpu_data[cpu].udelay_val = loops_per_jiffy;
- prom_smp_finish();
+ mp_ops->smp_finish();
+ set_cpu_sibling_map(cpu);
cpu_set(cpu, cpu_callin_map);
+ synchronise_count_slave();
+
cpu_idle();
}
smp_mb();
/* Send a message to all other CPUs and wait for them to respond */
- core_send_ipi_mask(mask, SMP_CALL_FUNCTION);
+ mp_ops->send_ipi_mask(mask, SMP_CALL_FUNCTION);
/* Wait for response */
/* FIXME: lock-up detection, backtrace on lock-up */
void __init smp_cpus_done(unsigned int max_cpus)
{
- prom_cpus_done();
+ mp_ops->cpus_done();
+ synchronise_count_master();
}
/* called from main before smp_init() */
{
init_new_context(current, &init_mm);
current_thread_info()->cpu = 0;
- plat_prepare_cpus(max_cpus);
+ mp_ops->prepare_cpus(max_cpus);
+ set_cpu_sibling_map(0);
#ifndef CONFIG_HOTPLUG_CPU
cpu_present_map = cpu_possible_map;
#endif
if (IS_ERR(idle))
panic(KERN_ERR "Fork failed for CPU %d", cpu);
- prom_boot_secondary(cpu, idle);
+ mp_ops->boot_secondary(cpu, idle);
/*
* Trust is futile. We should really have timeouts ...