From: Vojtech Pavlik <vojtech@suse.cz>
Date: Mon, 26 Jun 2006 11:58:23 +0000 (+0200)
Subject: [PATCH] x86_64: Rename oem_force_hpet_timer to apic_is_clustered_box
X-Git-Tag: v2.6.18-rc1~612^2~35
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f8bf3c65a962530821fa9a9b4bad43d8c7e13574;p=linux-2.6

[PATCH] x86_64: Rename oem_force_hpet_timer to apic_is_clustered_box

Rename oem_force_hpet_timer to apic_is_clustered_box, to give the
function a better fitting name - it really isn't at all about HPET.

Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>
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 29ef99001e..53fc17d894 100644
--- a/arch/x86_64/kernel/apic.c
+++ b/arch/x86_64/kernel/apic.c
@@ -983,7 +983,7 @@ void smp_apic_timer_interrupt(struct pt_regs *regs)
 }
 
 /*
- * oem_force_hpet_timer -- force HPET mode for some boxes.
+ * apic_is_clustered_box() -- Check if we can expect good TSC
  *
  * Thus far, the major user of this is IBM's Summit2 series:
  *
@@ -991,7 +991,7 @@ void smp_apic_timer_interrupt(struct pt_regs *regs)
  * multi-chassis. Use available data to take a good guess.
  * If in doubt, go HPET.
  */
-__cpuinit int oem_force_hpet_timer(void)
+__cpuinit int apic_is_clustered_box(void)
 {
 	int i, clusters, zeros;
 	unsigned id;
@@ -1022,8 +1022,7 @@ __cpuinit int oem_force_hpet_timer(void)
 	}
 
 	/*
-	 * If clusters > 2, then should be multi-chassis.  Return 1 for HPET.
-	 * Else return 0 to use TSC.
+	 * If clusters > 2, then should be multi-chassis.
 	 * May have to revisit this when multi-core + hyperthreaded CPUs come
 	 * out, but AFAIK this will work even for them.
 	 */
diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c
index 7392570f97..54b14e3ef6 100644
--- a/arch/x86_64/kernel/time.c
+++ b/arch/x86_64/kernel/time.c
@@ -956,10 +956,10 @@ void __init time_init(void)
 __cpuinit int unsynchronized_tsc(void)
 {
 #ifdef CONFIG_SMP
-	if (oem_force_hpet_timer())
+	if (apic_is_clustered_box())
 		return 1;
  	/* Intel systems are normally all synchronized. Exceptions
- 	   are handled in the OEM check above. */
+ 	   are handled in the check above. */
  	if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)
  		return 0;
 #endif
diff --git a/include/asm-x86_64/hpet.h b/include/asm-x86_64/hpet.h
index 18ff7ee9e7..b39098408b 100644
--- a/include/asm-x86_64/hpet.h
+++ b/include/asm-x86_64/hpet.h
@@ -55,7 +55,7 @@
 
 extern int is_hpet_enabled(void);
 extern int hpet_rtc_timer_init(void);
-extern int oem_force_hpet_timer(void);
+extern int apic_is_clustered_box(void);
 
 extern int hpet_use_timer;