Merge branch 'x86/uv' into x86/core

arch/x86/include/asm/apic.h

@@ -379,6 +379,7 @@ static inline u32 safe_apic_wait_icr_idle(void)
 
 static inline void ack_APIC_irq(void)
 {
+#ifdef CONFIG_X86_LOCAL_APIC
 	/*
 	 * ack_APIC_irq() actually gets compiled as a single instruction
 	 * ... yummie.
@@ -386,6 +387,7 @@ static inline void ack_APIC_irq(void)
 
 	/* Docs say use 0 for future compatibility */
 	apic_write(APIC_EOI, 0);
+#endif
 }
 
 static inline unsigned default_get_apic_id(unsigned long x)

arch/x86/include/asm/entry_arch.h

@@ -33,6 +33,8 @@ BUILD_INTERRUPT3(invalidate_interrupt7,INVALIDATE_TLB_VECTOR_START+7,
 		 smp_invalidate_interrupt)
 #endif
 
+BUILD_INTERRUPT(generic_interrupt, GENERIC_INTERRUPT_VECTOR)
+
 /*
  * every pentium local APIC has two 'local interrupts', with a
  * soft-definable vector attached to both interrupts, one of

arch/x86/include/asm/hardirq.h

@@ -12,6 +12,7 @@ typedef struct {
 	unsigned int apic_timer_irqs;	/* arch dependent */
 	unsigned int irq_spurious_count;
 #endif
+	unsigned int generic_irqs;	/* arch dependent */
 #ifdef CONFIG_SMP
 	unsigned int irq_resched_count;
 	unsigned int irq_call_count;

arch/x86/include/asm/hw_irq.h

@@ -27,6 +27,7 @@
 
 /* Interrupt handlers registered during init_IRQ */
 extern void apic_timer_interrupt(void);
+extern void generic_interrupt(void);
 extern void error_interrupt(void);
 extern void spurious_interrupt(void);
 extern void thermal_interrupt(void);

arch/x86/include/asm/irq.h

@@ -36,6 +36,7 @@ static inline int irq_canonicalize(int irq)
 extern void fixup_irqs(void);
 #endif
 
+extern void (*generic_interrupt_extension)(void);
 extern void init_IRQ(void);
 extern void native_init_IRQ(void);
 extern bool handle_irq(unsigned irq, struct pt_regs *regs);

arch/x86/include/asm/irq_vectors.h

@@ -111,6 +111,11 @@
  */
 #define LOCAL_PERF_VECTOR		0xee
 
+/*
+ * Generic system vector for platform specific use
+ */
+#define GENERIC_INTERRUPT_VECTOR	0xed
+
 /*
  * First APIC vector available to drivers: (vectors 0x30-0xee) we
  * start at 0x31(0x41) to spread out vectors evenly between priority

arch/x86/include/asm/uv/uv_hub.h

@@ -199,6 +199,10 @@ DECLARE_PER_CPU(struct uv_hub_info_s, __uv_hub_info);
 #define SCIR_CPU_ACTIVITY	0x02	/* not idle */
 #define SCIR_CPU_HB_INTERVAL	(HZ)	/* once per second */
 
+/* Loop through all installed blades */
+#define for_each_possible_blade(bid)		\
+	for ((bid) = 0; (bid) < uv_num_possible_blades(); (bid)++)
+
 /*
  * Macros for converting between kernel virtual addresses, socket local physical
  * addresses, and UV global physical addresses.