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Commit c1e3619e authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Thomas Gleixner
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x86: print info about late C1E detection on 32bit as well 



Some BIOSes set the C1E flag only on the second core. Print a warning so
the Firmware Toolkit can check for it.

mingo: fix C1E build bug on 32-bit

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent c789c037

arch/x86/kernel/cpu/amd.c

+10 −5
Original line number Diff line number Diff line
@@ -4,6 +4,7 @@ 
#include <asm/io.h>

#include <asm/processor.h>

#include <asm/apic.h>

#include <asm/mach_apic.h>



#include "cpu.h"
@@ -45,8 +46,12 @@ static __cpuinit int amd_apic_timer_broken(void) 
	case CPUID_XFAM_10H:

	case CPUID_XFAM_11H:

		rdmsr(MSR_K8_ENABLE_C1E, lo, hi);

		if (lo & ENABLE_C1E_MASK)

		if (lo & ENABLE_C1E_MASK) {

			if (smp_processor_id() != boot_cpu_physical_apicid)

				printk(KERN_INFO "AMD C1E detected late. "

				       "	Force timer broadcast.\n");

			return 1;

		}

		break;

	default:

		/* err on the side of caution */