[IA64] SKI Simulator boot

Sorry I didn't notice earlier, but that BUG_ON triggers for me on the
simulator.  AFAICS the mask for itv is set in cpu_init(), which comes
after sal_init().  Consequently on the simulator the itv still has its
start value of zero.  I've probably missed something, but I wonder why
at this stage of the boot you even need to save and restore the itv?

Signed-Off-By: Ian Wienand <ianw@gelato.unsw.edu.au>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 1 insertions, 5 deletions

diff --git a/arch/ia64/kernel/sal.c b/arch/ia64/kernel/sal.c
index 056f7a6eedc7..77fa65903d94 100644
--- a/arch/ia64/kernel/sal.c
+++ b/arch/ia64/kernel/sal.c
@@ -227,7 +227,7 @@ static int sal_cache_flush_drops_interrupts;
 static void __init
 check_sal_cache_flush (void)
 {
-        unsigned long flags, itv;
+        unsigned long flags;
         int cpu;
         u64 vector;
 
@@ -238,9 +238,6 @@ check_sal_cache_flush (void)
          * Schedule a timer interrupt, wait until it's reported, and see if
          * SAL_CACHE_FLUSH drops it.
          */
-        itv = ia64_get_itv();
-        BUG_ON((itv & (1 << 16)) == 0);
-
         ia64_set_itv(IA64_TIMER_VECTOR);
         ia64_set_itm(ia64_get_itc() + 1000);
 
@@ -260,7 +257,6 @@ check_sal_cache_flush (void)
                 ia64_eoi();
         }
 
-        ia64_set_itv(itv);
         local_irq_restore(flags);
         put_cpu();
 }