x86, mce: enable MCE_INTEL for 32bit new MCE

Enable the 64bit MCE_INTEL code (CMCI, thermal interrupts) for 32bit NEW_MCE.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

arch/x86/Kconfig

@@ -808,7 +808,7 @@ config X86_NEW_MCE
 config X86_MCE_INTEL
 	def_bool y
 	prompt "Intel MCE features"
-	depends on X86_64 && X86_MCE && X86_LOCAL_APIC
+	depends on X86_NEW_MCE && X86_LOCAL_APIC
 	---help---
 	   Additional support for intel specific MCE features such as
 	   the thermal monitor.

arch/x86/include/asm/entry_arch.h

@@ -56,4 +56,8 @@ BUILD_INTERRUPT(perf_counter_interrupt, LOCAL_PERF_VECTOR)
 BUILD_INTERRUPT(thermal_interrupt,THERMAL_APIC_VECTOR)
 #endif
 
+#ifdef CONFIG_X86_MCE_THRESHOLD
+BUILD_INTERRUPT(threshold_interrupt,THRESHOLD_APIC_VECTOR)
+#endif
+
 #endif

arch/x86/include/asm/hardirq.h

@@ -20,7 +20,7 @@ typedef struct {
 #endif
 #ifdef CONFIG_X86_MCE
 	unsigned int irq_thermal_count;
-# ifdef CONFIG_X86_64
+# ifdef CONFIG_X86_MCE_THRESHOLD
 	unsigned int irq_threshold_count;
 # endif
 #endif

arch/x86/include/asm/irq_vectors.h

@@ -87,10 +87,11 @@
 #define CALL_FUNCTION_SINGLE_VECTOR	0xfb
 #define THERMAL_APIC_VECTOR		0xfa
 
+#define THRESHOLD_APIC_VECTOR		0xf9
+
 #ifdef CONFIG_X86_32
-/* 0xf8 - 0xf9 : free */
+/* 0xf9 : free */
 #else
-# define THRESHOLD_APIC_VECTOR		0xf9
 # define UV_BAU_MESSAGE			0xf8
 #endif
 

arch/x86/kernel/cpu/mcheck/threshold.c

@@ -17,7 +17,7 @@ static void default_threshold_interrupt(void)
 
 void (*mce_threshold_vector)(void) = default_threshold_interrupt;
 
-asmlinkage void mce_threshold_interrupt(void)
+asmlinkage void smp_threshold_interrupt(void)
 {
 	exit_idle();
 	irq_enter();

arch/x86/kernel/entry_64.S

@@ -1007,7 +1007,7 @@ apicinterrupt INVALIDATE_TLB_VECTOR_START+7 \
 #endif
 
 apicinterrupt THRESHOLD_APIC_VECTOR \
-	threshold_interrupt mce_threshold_interrupt
+	threshold_interrupt smp_threshold_interrupt
 apicinterrupt THERMAL_APIC_VECTOR \
 	thermal_interrupt smp_thermal_interrupt
 

arch/x86/kernel/irqinit_32.c

@@ -186,6 +186,10 @@ void __init native_init_IRQ(void)
 	alloc_intr_gate(THERMAL_APIC_VECTOR, thermal_interrupt);
 #endif
 
+#ifdef CONFIG_X86_MCE_THRESHOLD
+	alloc_intr_gate(THRESHOLD_APIC_VECTOR, threshold_interrupt);
+#endif
+
 	if (!acpi_ioapic)
 		setup_irq(2, &irq2);
 

arch/x86/kernel/traps.c

@@ -804,7 +804,7 @@ asmlinkage void __attribute__((weak)) smp_thermal_interrupt(void)
 {
 }
 
-asmlinkage void __attribute__((weak)) mce_threshold_interrupt(void)
+asmlinkage void __attribute__((weak)) smp_threshold_interrupt(void)
 {
 }