aba10e131f
For purposes of handling hardware error reported via NMIs I need a way to escape NMI context, being too restrictive to do something significant. To do it this change introduces new swi_sched() flag SWI_FROMNMI, making it careful about used KPIs. On platforms allowing IPI sending from NMI context (x86 for now) it immediately wakes clk_intr_event via new IPI_SWI, otherwise it works just like SWI_DELAY. To handle the delayed SWIs this patch calls clk_intr_event on every hardclock() tick. MFC after: 2 weeks Sponsored by: iXsystems, Inc. Differential Revision: https://reviews.freebsd.org/D25754
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
/*-
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* ----------------------------------------------------------------------------
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* "THE BEER-WARE LICENSE" (Revision 42):
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* <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
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* can do whatever you want with this stuff. If we meet some day, and you think
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* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
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* ----------------------------------------------------------------------------
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*
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* $FreeBSD$
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*
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*/
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#ifndef _MACHINE_SMP_H_
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#define _MACHINE_SMP_H_
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#ifdef _KERNEL
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#ifdef SMP
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#ifndef LOCORE
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#include <x86/x86_smp.h>
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/* global symbols in mpboot.S */
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extern char mptramp_start[];
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extern u_int32_t mptramp_pagetables;
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/* IPI handlers */
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inthand_t
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IDTVEC(justreturn), /* interrupt CPU with minimum overhead */
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IDTVEC(justreturn1_pti),
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IDTVEC(invlop_pti),
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IDTVEC(invlop),
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IDTVEC(ipi_intr_bitmap_handler_pti),
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IDTVEC(ipi_swi_pti),
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IDTVEC(cpustop_pti),
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IDTVEC(cpususpend_pti),
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IDTVEC(rendezvous_pti);
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void invlop_handler(void);
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int native_start_all_aps(void);
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void mp_bootaddress(vm_paddr_t *, unsigned int *);
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#endif /* !LOCORE */
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#endif /* SMP */
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#endif /* _KERNEL */
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#endif /* _MACHINE_SMP_H_ */
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