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| author | Ingo Molnar <mingo@elte.hu> | 2008-09-05 09:27:23 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-09-05 09:27:23 +0200 |
| commit | 0c8c708a7e6b52556ee9079041f504191ec5f0e9 (patch) | |
| tree | fb8da2f5e70ac1d21d41d5a900e48d42c1c999eb /include/asm-x86/ipi.h | |
| parent | b380b0d4f7dffcc235c0facefa537d4655619101 (diff) | |
| parent | d3d0ba7b8fb8f57c33207adcb41f40c176148c03 (diff) | |
Merge branch 'x86/core' into x86/unify-cpu-detect
Diffstat (limited to 'include/asm-x86/ipi.h')
| -rw-r--r-- | include/asm-x86/ipi.h | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/include/asm-x86/ipi.h b/include/asm-x86/ipi.h index bb1c09f7a76..30a692cfaff 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. @@ -49,6 +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) { @@ -64,7 +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 @@ -74,7 +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); } /* @@ -92,13 +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 @@ -108,7 +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) @@ -129,4 +135,4 @@ static inline void send_IPI_mask_sequence(cpumask_t mask, int vector) local_irq_restore(flags); } -#endif /* __ASM_IPI_H */ +#endif /* ASM_X86__IPI_H */ |