182da8209d
and cpu_critical_exit() and moves associated critical prototypes into their own header file, <arch>/<arch>/critical.h, which is only included by the three MI source files that need it. Backout and re-apply improperly comitted syntactical cleanups made to files that were still under active development. Backout improperly comitted program structure changes that moved localized declarations to the top of two procedures. Partially re-apply one of the program structure changes to move 'mask' into an intermediate block rather then in three separate sub-blocks to make the code more readable. Re-integrate bug fixes that Jake made to the sparc64 code. Note: In general, developers should not gratuitously move declarations out of sub-blocks. They are where they are for reasons of structure, grouping, readability, compiler-localizability, and to avoid developer-introduced bugs similar to several found in recent years in the VFS and VM code. Reviewed by: jake
138 lines
2.6 KiB
C
138 lines
2.6 KiB
C
/*-
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* Copyright (c) 1998 Doug Rabson
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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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* 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 AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MACHINE_CPUFUNC_H_
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#define _MACHINE_CPUFUNC_H_
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#ifdef _KERNEL
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#include <sys/types.h>
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#include <machine/psl.h>
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struct thread;
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#ifdef __GNUC__
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static __inline void
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breakpoint(void)
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{
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return;
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}
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#endif
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/* CPU register mangling inlines */
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static __inline void
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mtmsr(register_t value)
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{
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__asm __volatile ("mtmsr %0" :: "r"(value));
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}
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static __inline register_t
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mfmsr(void)
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{
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register_t value;
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__asm __volatile ("mfmsr %0" : "=r"(value));
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return (value);
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}
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static __inline void
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mtdec(register_t value)
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{
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__asm __volatile ("mtdec %0" :: "r"(value));
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}
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static __inline register_t
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mfdec(void)
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{
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register_t value;
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__asm __volatile ("mfdec %0" : "=r"(value));
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return (value);
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}
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static __inline void
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isync(void)
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{
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__asm __volatile ("isync");
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}
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static __inline register_t
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intr_disable(void)
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{
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register_t msr;
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msr = mfmsr();
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mtmsr(msr & ~(PSL_EE|PSL_RI));
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return (msr);
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}
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static __inline void
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intr_restore(register_t msr)
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{
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mtmsr(msr);
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}
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static __inline void
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restore_intr(unsigned int msr)
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{
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mtmsr(msr);
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}
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static __inline void
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powerpc_mb(void)
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{
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__asm __volatile("eieio; sync" : : : "memory");
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}
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static __inline struct pcpu *
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powerpc_get_pcpup(void)
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{
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struct pcpu *ret;
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__asm ("mfsprg %0, 0" : "=r"(ret));
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return(ret);
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}
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#endif /* _KERNEL */
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#endif /* !_MACHINE_CPUFUNC_H_ */
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