[IA64] allow user to force_pal_cache_flush

[linux-2.6-omap-h63xx.git] / arch / ia64 / kernel / sal.c

diff --git a/arch/ia64/kernel/sal.c b/arch/ia64/kernel/sal.c
index a3022dc48ef8432a437256948d5a25080b1cf24d..7e0259709c0415081c6f42396e7e2d446c9c5479 100644 (file)
--- a/arch/ia64/kernel/sal.c
+++ b/arch/ia64/kernel/sal.c
@@ -229,6 +229,14 @@ static void __init sal_desc_ap_wakeup(void *p) { }
  */
 static int sal_cache_flush_drops_interrupts;
 
+static int __init
+force_pal_cache_flush(char *str)
+{
+       sal_cache_flush_drops_interrupts = 1;
+       return 0;
+}
+early_param("force_pal_cache_flush", force_pal_cache_flush);
+
 void __init
 check_sal_cache_flush (void)
 {
@@ -237,6 +245,9 @@ check_sal_cache_flush (void)
        u64 vector, cache_type = 3;
        struct ia64_sal_retval isrv;
 
+       if (sal_cache_flush_drops_interrupts)
+               return;
+
        cpu = get_cpu();
        local_irq_save(flags);