sparc32: refactor smp boot
Introduce a common smp_callin() function to call
from trampoline_32.S.
Add platform specific functions to handle the
platform details.
This is in preparation for a patch that will
unify the smp boot stuff for all architectures.
sparc32 was significantly different to warrant
this patch in preparation.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
Acked-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c
index 128af73..8a65f15 100644
--- a/arch/sparc/kernel/sun4m_smp.c
+++ b/arch/sparc/kernel/sun4m_smp.c
@@ -34,30 +34,19 @@
return val;
}
-void __cpuinit smp4m_callin(void)
+void __cpuinit sun4m_cpu_pre_starting(void *arg)
+{
+}
+
+void __cpuinit sun4m_cpu_pre_online(void *arg)
{
int cpuid = hard_smp_processor_id();
- local_ops->cache_all();
- local_ops->tlb_all();
-
- notify_cpu_starting(cpuid);
-
- register_percpu_ce(cpuid);
-
- calibrate_delay();
- smp_store_cpu_info(cpuid);
-
- local_ops->cache_all();
- local_ops->tlb_all();
-
- /*
- * Unblock the master CPU _only_ when the scheduler state
- * of all secondary CPUs will be up-to-date, so after
- * the SMP initialization the master will be just allowed
- * to call the scheduler code.
+ /* Allow master to continue. The master will then give us the
+ * go-ahead by setting the smp_commenced_mask and will wait without
+ * timeouts until our setup is completed fully (signified by
+ * our bit being set in the cpu_online_mask).
*/
- /* Allow master to continue. */
swap_ulong(&cpu_callin_map[cpuid], 1);
/* XXX: What's up with all the flushes? */
@@ -75,10 +64,6 @@
while (!cpumask_test_cpu(cpuid, &smp_commenced_mask))
mb();
-
- local_irq_enable();
-
- set_cpu_online(cpuid, true);
}
/*