0b5ac7b6b9
SMP support for PowerPC G5 systems. r198724: Fix a race in casuword() exposed by csup. casuword() non-atomically read the current value of its argument before atomically replacing it, which could occasionally return the wrong value on an SMP system. This resulted in user mutex operations hanging when using threaded applications. r198723,198725,198731: Loop on blocked threads when using ULE scheduler, removing an XXX MP comment. r198427: Add some more paranoia to setting HID registers, and update the AIM clock routines to work better with SMP. r198378: Add SMP support on U3-based G5 systems. While here, correct the 64-bit tlbie function to set the CPU to 64-bit mode correctly. r198212: Don't assume that physical addresses are identity mapped. This allows the second processor on G5 systems to start.
58 lines
1.8 KiB
C
58 lines
1.8 KiB
C
/*-
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* Copyright (c) 2008 Marcel Moolenaar
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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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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#define IPI_AST 0
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#define IPI_PREEMPT 1
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#define IPI_RENDEZVOUS 2
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#define IPI_STOP 3
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#define IPI_STOP_HARD 3
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#ifndef LOCORE
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void ipi_all_but_self(int ipi);
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void ipi_selected(cpumask_t cpus, int ipi);
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struct cpuref {
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uintptr_t cr_hwref;
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u_int cr_cpuid;
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};
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void pmap_cpu_bootstrap(int);
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uintptr_t cpudep_ap_bootstrap(void);
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void cpudep_ap_setup(void);
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void machdep_ap_bootstrap(void);
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#endif /* !LOCORE */
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#endif /* _KERNEL */
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#endif /* !_MACHINE_SMP_H */
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