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Diffstat (limited to 'arch/powerpc/platforms/chrp/smp.c')
-rw-r--r--arch/powerpc/platforms/chrp/smp.c45
1 files changed, 7 insertions, 38 deletions
diff --git a/arch/powerpc/platforms/chrp/smp.c b/arch/powerpc/platforms/chrp/smp.c
index 1d2307e87c3..b6c9a0dcc92 100644
--- a/arch/powerpc/platforms/chrp/smp.c
+++ b/arch/powerpc/platforms/chrp/smp.c
@@ -11,15 +11,13 @@
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/smp.h>
-#include <linux/smp_lock.h>
#include <linux/interrupt.h>
#include <linux/kernel_stat.h>
#include <linux/delay.h>
-#include <linux/init.h>
#include <linux/spinlock.h>
#include <asm/ptrace.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/irq.h>
#include <asm/page.h>
#include <asm/pgtable.h>
@@ -27,50 +25,21 @@
#include <asm/io.h>
#include <asm/prom.h>
#include <asm/smp.h>
-#include <asm/residual.h>
-#include <asm/time.h>
#include <asm/machdep.h>
-#include <asm/smp.h>
#include <asm/mpic.h>
#include <asm/rtas.h>
-static void __devinit smp_chrp_kick_cpu(int nr)
+static int smp_chrp_kick_cpu(int nr)
{
*(unsigned long *)KERNELBASE = nr;
asm volatile("dcbf 0,%0"::"r"(KERNELBASE):"memory");
-}
-
-static void __devinit smp_chrp_setup_cpu(int cpu_nr)
-{
- mpic_setup_this_cpu();
-}
-
-static DEFINE_SPINLOCK(timebase_lock);
-static unsigned int timebase_upper = 0, timebase_lower = 0;
-void __devinit smp_chrp_give_timebase(void)
-{
- spin_lock(&timebase_lock);
- rtas_call(rtas_token("freeze-time-base"), 0, 1, NULL);
- timebase_upper = get_tbu();
- timebase_lower = get_tbl();
- spin_unlock(&timebase_lock);
-
- while (timebase_upper || timebase_lower)
- barrier();
- rtas_call(rtas_token("thaw-time-base"), 0, 1, NULL);
+ return 0;
}
-void __devinit smp_chrp_take_timebase(void)
+static void smp_chrp_setup_cpu(int cpu_nr)
{
- while (!(timebase_upper || timebase_lower))
- barrier();
- spin_lock(&timebase_lock);
- set_tb(timebase_upper, timebase_lower);
- timebase_upper = 0;
- timebase_lower = 0;
- spin_unlock(&timebase_lock);
- printk("CPU %i taken timebase\n", smp_processor_id());
+ mpic_setup_this_cpu();
}
/* CHRP with openpic */
@@ -79,6 +48,6 @@ struct smp_ops_t chrp_smp_ops = {
.probe = smp_mpic_probe,
.kick_cpu = smp_chrp_kick_cpu,
.setup_cpu = smp_chrp_setup_cpu,
- .give_timebase = smp_chrp_give_timebase,
- .take_timebase = smp_chrp_take_timebase,
+ .give_timebase = rtas_give_timebase,
+ .take_timebase = rtas_take_timebase,
};