From: Andi Kleen <ak@suse.de>
Date: Thu, 16 Feb 2006 22:42:07 +0000 (+0100)
Subject: [PATCH] x86_64: Disable tsc when apicpmtimer is active
X-Git-Tag: MMI-PSA29.97-13-9~51973
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7fd67843b96f90f59c9a244a1bc25137978a3ff9;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git

[PATCH] x86_64: Disable tsc when apicpmtimer is active

Otherwise it has no effect anyways.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c
index 7a0a3e8d5d72..e5b14c57eaa0 100644
--- a/arch/x86_64/kernel/apic.c
+++ b/arch/x86_64/kernel/apic.c
@@ -1152,6 +1152,7 @@ __setup("noapicmaintimer", setup_noapicmaintimer);
 static __init int setup_apicpmtimer(char *s)
 {
 	apic_calibrate_pmtmr = 1;
+	notsc_setup(NULL);
 	return setup_apicmaintimer(NULL);
 }
 __setup("apicpmtimer", setup_apicpmtimer);
diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c
index 3c58c30506a1..67841d11ed1f 100644
--- a/arch/x86_64/kernel/time.c
+++ b/arch/x86_64/kernel/time.c
@@ -1327,8 +1327,7 @@ static int __init nohpet_setup(char *s)
 
 __setup("nohpet", nohpet_setup);
 
-
-static int __init notsc_setup(char *s)
+int __init notsc_setup(char *s)
 {
 	notsc = 1;
 	return 0;
diff --git a/include/asm-x86_64/proto.h b/include/asm-x86_64/proto.h
index c99832e7bf3f..eca3f2d633db 100644
--- a/include/asm-x86_64/proto.h
+++ b/include/asm-x86_64/proto.h
@@ -133,6 +133,7 @@ extern int fix_aperture;
 extern int force_iommu;
 
 extern int reboot_force;
+extern int notsc_setup(char *);
 
 extern void smp_local_timer_interrupt(struct pt_regs * regs);