diff options
| -rw-r--r-- | arch/ia64/kernel/irq_ia64.c | 18 | ||||
| -rw-r--r-- | arch/ia64/kernel/paravirt.c | 15 | ||||
| -rw-r--r-- | include/asm-ia64/hw_irq.h | 23 | ||||
| -rw-r--r-- | include/asm-ia64/paravirt.h | 48 |
4 files changed, 95 insertions, 9 deletions
diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c index c48171bc7969..28d3d483db92 100644 --- a/arch/ia64/kernel/irq_ia64.c +++ b/arch/ia64/kernel/irq_ia64.c @@ -196,7 +196,7 @@ static void clear_irq_vector(int irq) } int -assign_irq_vector (int irq) +ia64_native_assign_irq_vector (int irq) { unsigned long flags; int vector, cpu; @@ -222,7 +222,7 @@ assign_irq_vector (int irq) } void -free_irq_vector (int vector) +ia64_native_free_irq_vector (int vector) { if (vector < IA64_FIRST_DEVICE_VECTOR || vector > IA64_LAST_DEVICE_VECTOR) @@ -622,7 +622,7 @@ static struct irqaction tlb_irqaction = { #endif void -register_percpu_irq (ia64_vector vec, struct irqaction *action) +ia64_native_register_percpu_irq (ia64_vector vec, struct irqaction *action) { irq_desc_t *desc; unsigned int irq; @@ -637,13 +637,21 @@ register_percpu_irq (ia64_vector vec, struct irqaction *action) } void __init -init_IRQ (void) +ia64_native_register_ipi(void) { - register_percpu_irq(IA64_SPURIOUS_INT_VECTOR, NULL); #ifdef CONFIG_SMP register_percpu_irq(IA64_IPI_VECTOR, &ipi_irqaction); register_percpu_irq(IA64_IPI_RESCHEDULE, &resched_irqaction); register_percpu_irq(IA64_IPI_LOCAL_TLB_FLUSH, &tlb_irqaction); +#endif +} + +void __init +init_IRQ (void) +{ + ia64_register_ipi(); + register_percpu_irq(IA64_SPURIOUS_INT_VECTOR, NULL); +#ifdef CONFIG_SMP #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_DIG) if (vector_domain_type != VECTOR_DOMAIN_NONE) { BUG_ON(IA64_FIRST_DEVICE_VECTOR != IA64_IRQ_MOVE_VECTOR); diff --git a/arch/ia64/kernel/paravirt.c b/arch/ia64/kernel/paravirt.c index 65c211b2f985..ba5383be03cb 100644 --- a/arch/ia64/kernel/paravirt.c +++ b/arch/ia64/kernel/paravirt.c @@ -337,3 +337,18 @@ struct pv_iosapic_ops pv_iosapic_ops = { .__read = ia64_native_iosapic_read, .__write = ia64_native_iosapic_write, }; + +/*************************************************************************** + * pv_irq_ops + * irq operations + */ + +struct pv_irq_ops pv_irq_ops = { + .register_ipi = ia64_native_register_ipi, + + .assign_irq_vector = ia64_native_assign_irq_vector, + .free_irq_vector = ia64_native_free_irq_vector, + .register_percpu_irq = ia64_native_register_percpu_irq, + + .resend_irq = ia64_native_resend_irq, +}; diff --git a/include/asm-ia64/hw_irq.h b/include/asm-ia64/hw_irq.h index 76366dc9c1a0..5c99cbcb8a0d 100644 --- a/include/asm-ia64/hw_irq.h +++ b/include/asm-ia64/hw_irq.h @@ -15,7 +15,11 @@ #include <asm/ptrace.h> #include <asm/smp.h> +#ifndef CONFIG_PARAVIRT typedef u8 ia64_vector; +#else +typedef u16 ia64_vector; +#endif /* * 0 special @@ -104,13 +108,24 @@ DECLARE_PER_CPU(int[IA64_NUM_VECTORS], vector_irq); extern struct hw_interrupt_type irq_type_ia64_lsapic; /* CPU-internal interrupt controller */ +#ifdef CONFIG_PARAVIRT_GUEST +#include <asm/paravirt.h> +#else +#define ia64_register_ipi ia64_native_register_ipi +#define assign_irq_vector ia64_native_assign_irq_vector +#define free_irq_vector ia64_native_free_irq_vector +#define register_percpu_irq ia64_native_register_percpu_irq +#define ia64_resend_irq ia64_native_resend_irq +#endif + +extern void ia64_native_register_ipi(void); extern int bind_irq_vector(int irq, int vector, cpumask_t domain); -extern int assign_irq_vector (int irq); /* allocate a free vector */ -extern void free_irq_vector (int vector); +extern int ia64_native_assign_irq_vector (int irq); /* allocate a free vector */ +extern void ia64_native_free_irq_vector (int vector); extern int reserve_irq_vector (int vector); extern void __setup_vector_irq(int cpu); extern void ia64_send_ipi (int cpu, int vector, int delivery_mode, int redirect); -extern void register_percpu_irq (ia64_vector vec, struct irqaction *action); +extern void ia64_native_register_percpu_irq (ia64_vector vec, struct irqaction *action); extern int check_irq_used (int irq); extern void destroy_and_reserve_irq (unsigned int irq); @@ -122,7 +137,7 @@ static inline int irq_prepare_move(int irq, int cpu) { return 0; } static inline void irq_complete_move(unsigned int irq) {} #endif -static inline void ia64_resend_irq(unsigned int vector) +static inline void ia64_native_resend_irq(unsigned int vector) { platform_send_ipi(smp_processor_id(), vector, IA64_IPI_DM_INT, 0); } diff --git a/include/asm-ia64/paravirt.h b/include/asm-ia64/paravirt.h index 3a40f624e86e..ee15646b6d66 100644 --- a/include/asm-ia64/paravirt.h +++ b/include/asm-ia64/paravirt.h @@ -152,6 +152,54 @@ __iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val) return pv_iosapic_ops.__write(iosapic, reg, val); } +/****************************************************************************** + * replacement of irq operations. + */ + +struct pv_irq_ops { + void (*register_ipi)(void); + + int (*assign_irq_vector)(int irq); + void (*free_irq_vector)(int vector); + + void (*register_percpu_irq)(ia64_vector vec, + struct irqaction *action); + + void (*resend_irq)(unsigned int vector); +}; + +extern struct pv_irq_ops pv_irq_ops; + +static inline void +ia64_register_ipi(void) +{ + pv_irq_ops.register_ipi(); +} + +static inline int +assign_irq_vector(int irq) +{ + return pv_irq_ops.assign_irq_vector(irq); +} + +static inline void +free_irq_vector(int vector) +{ + return pv_irq_ops.free_irq_vector(vector); +} + +static inline void +register_percpu_irq(ia64_vector vec, struct irqaction *action) +{ + pv_irq_ops.register_percpu_irq(vec, action); +} + +static inline void +ia64_resend_irq(unsigned int vector) +{ + pv_irq_ops.resend_irq(vector); +} + #endif /* !__ASSEMBLY__ */ #else |