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authorThomas Gleixner <tglx@linutronix.de>2009-08-20 15:54:21 +0200
committerThomas Gleixner <tglx@linutronix.de>2009-08-31 09:35:46 +0200
commit64fcbac1f38882d8ae82c44a1c2a676cfa5e79e1 (patch)
treeec1206322a8ca2a775db5ca552d5666b968be77c /arch/x86/include/asm/timer.h
parentdd3e6e8c6e7a2294f137c4dbccb3e73e7fa8ba15 (diff)
x86: Simplify timer_ack magic in time_32.c
Let the compiler optimize the timer_ack magic away in the 32bit timer interrupt and put the same code into time_64.c. It's optimized out for CONFIG_X86_IO_APIC on 32bit and for 64bit because timer_ack is const 0 in both cases. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/include/asm/timer.h')
-rw-r--r--arch/x86/include/asm/timer.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/include/asm/timer.h b/arch/x86/include/asm/timer.h
index e854c7ab416..65228ccc5f0 100644
--- a/arch/x86/include/asm/timer.h
+++ b/arch/x86/include/asm/timer.h
@@ -9,11 +9,13 @@
unsigned long long native_sched_clock(void);
unsigned long native_calibrate_tsc(void);
+extern int recalibrate_cpu_khz(void);
-#ifdef CONFIG_X86_32
+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_IO_APIC)
extern int timer_ack;
+#else
+# define timer_ack (0)
#endif
-extern int recalibrate_cpu_khz(void);
extern int no_timer_check;