[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>

3 files changed, 6 insertions, 7 deletions

diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c
index 29ef99001e05..53fc17d894e8 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 7392570f975d..54b14e3ef66f 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 18ff7ee9e774..b39098408b69 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;