From: Sepherosa Ziehau <sephe@dragonflybsd.org>
Date: Fri, 13 May 2011 09:18:51 +0000 (+0800)
Subject: i386/lapic: Don't set task priority register
X-Git-Tag: v2.12.0~631
X-Git-Url: https://gitweb.dragonflybsd.org/~nant/dragonfly.git/commitdiff_plain/1971051d793df5e0f6c9e58acb6e35a2026fa263

i386/lapic: Don't set task priority register
---

diff --git a/sys/platform/pc32/apic/lapic.c b/sys/platform/pc32/apic/lapic.c
index ab76ba969b..597c0373f2 100644
--- a/sys/platform/pc32/apic/lapic.c
+++ b/sys/platform/pc32/apic/lapic.c
@@ -186,23 +186,10 @@ lapic_init(boolean_t bsp)
 	/*
 	 * Set the Task Priority Register as needed.   At the moment allow
 	 * interrupts on all cpus (the APs will remain CLId until they are
-	 * ready to deal).  We could disable all but IPIs by setting
-	 * temp |= TPR_IPI for cpu != 0.
+	 * ready to deal).
 	 */
 	temp = lapic->tpr;
 	temp &= ~APIC_TPR_PRIO;		/* clear priority field */
-#ifdef SMP /* APIC-IO */
-if (!apic_io_enable) {
-#endif
-	/*
-	 * If we are NOT running the IO APICs, the LAPIC will only be used
-	 * for IPIs.  Set the TPR to prevent any unintentional interrupts.
-	 */
-	temp |= TPR_IPI;
-#ifdef SMP /* APIC-IO */
-}
-#endif
-
 	lapic->tpr = temp;
 
 	/*