x86: cleanup C1E enabled detection

Rename the "MSR_K8_ENABLE_C1E" MSR to INT_PENDING_MSG, which is the
name in the data sheet as well. Move the C1E mask to the header file.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/kernel/cpu/amd.c

@@ -25,7 +25,6 @@ extern void vide(void);
 __asm__(".align 4\nvide: ret");
 
 #ifdef CONFIG_X86_LOCAL_APIC
-#define ENABLE_C1E_MASK         0x18000000
 #define CPUID_PROCESSOR_SIGNATURE       1
 #define CPUID_XFAM              0x0ff00000
 #define CPUID_XFAM_K8           0x00000000
@@ -45,8 +44,8 @@ static __cpuinit int amd_apic_timer_broken(void)
 			break;
 	case CPUID_XFAM_10H:
 	case CPUID_XFAM_11H:
-		rdmsr(MSR_K8_ENABLE_C1E, lo, hi);
-		if (lo & ENABLE_C1E_MASK) {
+		rdmsr(MSR_K8_INT_PENDING_MSG, lo, hi);
+		if (lo & K8_INTP_C1E_ACTIVE_MASK) {
 			if (smp_processor_id() != boot_cpu_physical_apicid)
 				printk(KERN_INFO "AMD C1E detected late. "
 				       "	Force timer broadcast.\n");

arch/x86/kernel/cpu/amd_64.c

@@ -110,7 +110,6 @@ static void __cpuinit early_init_amd_mc(struct cpuinfo_x86 *c)
 #endif
 }
 
-#define ENABLE_C1E_MASK		0x18000000
 #define CPUID_PROCESSOR_SIGNATURE	1
 #define CPUID_XFAM		0x0ff00000
 #define CPUID_XFAM_K8		0x00000000
@@ -130,8 +129,8 @@ static __cpuinit int amd_apic_timer_broken(void)
 			break;
 	case CPUID_XFAM_10H:
 	case CPUID_XFAM_11H:
-		rdmsr(MSR_K8_ENABLE_C1E, lo, hi);
-		if (lo & ENABLE_C1E_MASK)
+		rdmsr(MSR_K8_INT_PENDING_MSG, lo, hi);
+		if (lo & K8_INTP_C1E_ACTIVE_MASK)
 			return 1;
 		break;
 	default:

include/asm-x86/msr-index.h

@@ -111,7 +111,9 @@
 #define MSR_K8_TOP_MEM2			0xc001001d
 #define MSR_K8_SYSCFG			0xc0010010
 #define MSR_K8_HWCR			0xc0010015
-#define MSR_K8_ENABLE_C1E		0xc0010055
+#define MSR_K8_INT_PENDING_MSG		0xc0010055
+/* C1E active bits in int pending message */
+#define K8_INTP_C1E_ACTIVE_MASK		0x18000000
 #define MSR_K8_TSEG_ADDR		0xc0010112
 #define K8_MTRRFIXRANGE_DRAM_ENABLE	0x00040000 /* MtrrFixDramEn bit    */
 #define K8_MTRRFIXRANGE_DRAM_MODIFY	0x00080000 /* MtrrFixDramModEn bit */