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02cf94c370
Impact: less contention when issuing invalidate IPI, cleanup Make x86_32 use the same tlb code as 64bit. The 64bit code uses multiple IPI vectors for tlb shootdown to reduce contention. This patch makes x86_32 allocate the same 8 IPIs as x86_64 and share the code paths. Note that the usage of asmlinkage is inconsistent for x86_32 and 64 and calls for further cleanup. This has been noted with a FIXME comment in tlb_64.c. Signed-off-by: Tejun Heo <tj@kernel.org>
53 lines
2.0 KiB
C
53 lines
2.0 KiB
C
/*
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* This file is designed to contain the BUILD_INTERRUPT specifications for
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* all of the extra named interrupt vectors used by the architecture.
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* Usually this is the Inter Process Interrupts (IPIs)
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*/
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/*
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* The following vectors are part of the Linux architecture, there
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* is no hardware IRQ pin equivalent for them, they are triggered
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* through the ICC by us (IPIs)
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*/
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#ifdef CONFIG_X86_SMP
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BUILD_INTERRUPT(reschedule_interrupt,RESCHEDULE_VECTOR)
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BUILD_INTERRUPT(call_function_interrupt,CALL_FUNCTION_VECTOR)
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BUILD_INTERRUPT(call_function_single_interrupt,CALL_FUNCTION_SINGLE_VECTOR)
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BUILD_INTERRUPT(irq_move_cleanup_interrupt,IRQ_MOVE_CLEANUP_VECTOR)
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BUILD_INTERRUPT3(invalidate_interrupt0,INVALIDATE_TLB_VECTOR_START+0,
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smp_invalidate_interrupt)
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BUILD_INTERRUPT3(invalidate_interrupt1,INVALIDATE_TLB_VECTOR_START+1,
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smp_invalidate_interrupt)
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BUILD_INTERRUPT3(invalidate_interrupt2,INVALIDATE_TLB_VECTOR_START+2,
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smp_invalidate_interrupt)
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BUILD_INTERRUPT3(invalidate_interrupt3,INVALIDATE_TLB_VECTOR_START+3,
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smp_invalidate_interrupt)
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BUILD_INTERRUPT3(invalidate_interrupt4,INVALIDATE_TLB_VECTOR_START+4,
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smp_invalidate_interrupt)
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BUILD_INTERRUPT3(invalidate_interrupt5,INVALIDATE_TLB_VECTOR_START+5,
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smp_invalidate_interrupt)
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BUILD_INTERRUPT3(invalidate_interrupt6,INVALIDATE_TLB_VECTOR_START+6,
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smp_invalidate_interrupt)
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BUILD_INTERRUPT3(invalidate_interrupt7,INVALIDATE_TLB_VECTOR_START+7,
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smp_invalidate_interrupt)
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#endif
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/*
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* every pentium local APIC has two 'local interrupts', with a
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* soft-definable vector attached to both interrupts, one of
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* which is a timer interrupt, the other one is error counter
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* overflow. Linux uses the local APIC timer interrupt to get
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* a much simpler SMP time architecture:
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*/
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#ifdef CONFIG_X86_LOCAL_APIC
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BUILD_INTERRUPT(apic_timer_interrupt,LOCAL_TIMER_VECTOR)
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BUILD_INTERRUPT(error_interrupt,ERROR_APIC_VECTOR)
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BUILD_INTERRUPT(spurious_interrupt,SPURIOUS_APIC_VECTOR)
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#ifdef CONFIG_X86_MCE_P4THERMAL
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BUILD_INTERRUPT(thermal_interrupt,THERMAL_APIC_VECTOR)
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#endif
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#endif
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