[PARISC] Add new function to start local Interval Timer, start_cpu_itimer()

I couldn't find where the itimer was getting started for slave CPUs.
CPU 0 (master) itimer was started in time_init() (arch/parisc/kernel/time.c).
start_cpu_itimer() code was striped from time_init().
Slaves now start their itimer in smp_cpu_init().

This is a first step towards making gettimeoffset() work for SMP.
Next step will be to determine the CR16 (cycle counter)
offsets for each CPU relative to the master (CPU 0).

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 98e40959a564..f33e8de438dc 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -430,8 +430,9 @@ smp_do_timer(struct pt_regs *regs)
 static void __init
 smp_cpu_init(int cpunum)
 {
-        extern int init_per_cpu(int);  /* arch/parisc/kernel/setup.c */
+        extern int init_per_cpu(int);  /* arch/parisc/kernel/processor.c */
         extern void init_IRQ(void);    /* arch/parisc/kernel/irq.c */
+        extern void start_cpu_itimer(void); /* arch/parisc/kernel/time.c */
 
         /* Set modes and Enable floating point coprocessor */
         (void) init_per_cpu(cpunum);
@@ -457,6 +458,7 @@ smp_cpu_init(int cpunum)
         enter_lazy_tlb(&init_mm, current);
 
         init_IRQ();   /* make sure no IRQ's are enabled or pending */
+        start_cpu_itimer();
 }