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authorIngo Molnar <mingo@elte.hu>2008-06-16 11:16:46 +0200
committerIngo Molnar <mingo@elte.hu>2008-06-16 11:16:46 +0200
commitcb9aa97c21c59ad01c9514d7faf45dc166fba226 (patch)
tree66a530f154db78b85f5b1406ebc51401df8d3913 /arch/x86/kernel/io_apic_32.c
parent668a6c3654560aef8741642478973e205a4f02bf (diff)
parent066519068ad2fbe98c7f45552b1f592903a9c8c8 (diff)
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Merge branch 'linus' into tracing/mmiotrace-mergefixups
Diffstat (limited to 'arch/x86/kernel/io_apic_32.c')
-rw-r--r--arch/x86/kernel/io_apic_32.c12
1 files changed, 2 insertions, 10 deletions
diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index a40d54fc1fd..4dc8600d9d2 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -2130,14 +2130,10 @@ static inline void __init check_timer(void)
{
int apic1, pin1, apic2, pin2;
int vector;
- unsigned int ver;
unsigned long flags;
local_irq_save(flags);
- ver = apic_read(APIC_LVR);
- ver = GET_APIC_VERSION(ver);
-
/*
* get/set the timer IRQ vector:
*/
@@ -2150,15 +2146,11 @@ static inline void __init check_timer(void)
* mode for the 8259A whenever interrupts are routed
* through I/O APICs. Also IRQ0 has to be enabled in
* the 8259A which implies the virtual wire has to be
- * disabled in the local APIC. Finally timer interrupts
- * need to be acknowledged manually in the 8259A for
- * timer_interrupt() and for the i82489DX when using
- * the NMI watchdog.
+ * disabled in the local APIC.
*/
apic_write_around(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_EXTINT);
init_8259A(1);
- timer_ack = !cpu_has_tsc;
- timer_ack |= (nmi_watchdog == NMI_IO_APIC && !APIC_INTEGRATED(ver));
+ timer_ack = 1;
if (timer_over_8254 > 0)
enable_8259A_irq(0);