diff options
Diffstat (limited to 'include/asm-x86/ipi.h')
| -rw-r--r-- | include/asm-x86/ipi.h | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/include/asm-x86/ipi.h b/include/asm-x86/ipi.h index ecc80f341f37..30a692cfaff8 100644 --- a/include/asm-x86/ipi.h +++ b/include/asm-x86/ipi.h @@ -1,5 +1,5 @@ -#ifndef __ASM_IPI_H -#define __ASM_IPI_H +#ifndef ASM_X86__IPI_H +#define ASM_X86__IPI_H /* * Copyright 2004 James Cleverdon, IBM. @@ -20,6 +20,7 @@ #include <asm/hw_irq.h> #include <asm/apic.h> +#include <asm/smp.h> /* * the following functions deal with sending IPIs between CPUs. @@ -48,6 +49,12 @@ static inline int __prepare_ICR2(unsigned int mask) return SET_APIC_DEST_FIELD(mask); } +static inline void __xapic_wait_icr_idle(void) +{ + while (native_apic_mem_read(APIC_ICR) & APIC_ICR_BUSY) + cpu_relax(); +} + static inline void __send_IPI_shortcut(unsigned int shortcut, int vector, unsigned int dest) { @@ -63,7 +70,7 @@ static inline void __send_IPI_shortcut(unsigned int shortcut, int vector, /* * Wait for idle. */ - apic_wait_icr_idle(); + __xapic_wait_icr_idle(); /* * No need to touch the target chip field @@ -73,7 +80,7 @@ static inline void __send_IPI_shortcut(unsigned int shortcut, int vector, /* * Send the IPI. The write to APIC_ICR fires this off. */ - apic_write(APIC_ICR, cfg); + native_apic_mem_write(APIC_ICR, cfg); } /* @@ -91,13 +98,13 @@ static inline void __send_IPI_dest_field(unsigned int mask, int vector, if (unlikely(vector == NMI_VECTOR)) safe_apic_wait_icr_idle(); else - apic_wait_icr_idle(); + __xapic_wait_icr_idle(); /* * prepare target chip field */ cfg = __prepare_ICR2(mask); - apic_write(APIC_ICR2, cfg); + native_apic_mem_write(APIC_ICR2, cfg); /* * program the ICR @@ -107,7 +114,7 @@ static inline void __send_IPI_dest_field(unsigned int mask, int vector, /* * Send the IPI. The write to APIC_ICR fires this off. */ - apic_write(APIC_ICR, cfg); + native_apic_mem_write(APIC_ICR, cfg); } static inline void send_IPI_mask_sequence(cpumask_t mask, int vector) @@ -121,11 +128,11 @@ static inline void send_IPI_mask_sequence(cpumask_t mask, int vector) * - mbligh */ local_irq_save(flags); - for_each_cpu_mask(query_cpu, mask) { + for_each_cpu_mask_nr(query_cpu, mask) { __send_IPI_dest_field(per_cpu(x86_cpu_to_apicid, query_cpu), vector, APIC_DEST_PHYSICAL); } local_irq_restore(flags); } -#endif /* __ASM_IPI_H */ +#endif /* ASM_X86__IPI_H */ |