Module: xenomai-forge
Branch: master
Commit: 9ba742725f558ce5672ebd14221c82d2a5220556
URL:
http://git.xenomai.org/?p=xenomai-forge.git;a=commit;h=9ba742725f558ce5672ebd14221c82d2a5220556
Author: Philippe Gerum <r...@xenomai.org>
Date: Sat Jul 7 12:54:34 2012 +0200
x86: warn about unused TSC due to disabled APIC
---
kernel/cobalt/arch/x86/hal.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/kernel/cobalt/arch/x86/hal.c b/kernel/cobalt/arch/x86/hal.c
index 5d9d228..075b58a 100644
--- a/kernel/cobalt/arch/x86/hal.c
+++ b/kernel/cobalt/arch/x86/hal.c
@@ -242,6 +242,10 @@ unsigned long rthal_timer_calibrate(void)
rthal_time_t t, dt;
int i, count;
+ if (cpu_has_tsc)
+ printk("Xenomai: this configuration has APIC disabled albeit "
+ "CPU has a TSC.\You should enable APIC for better
performances.");
+
flags = hard_local_irq_save();
/* Read the current latch value, whatever the current mode is. */
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