71e3c3083b
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
218 lines
3.9 KiB
C
218 lines
3.9 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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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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#include <machine/spr.h>
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struct thread;
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#ifdef KDB
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void breakpoint(void);
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#else
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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; isync" :: "r"(value));
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}
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#ifdef __powerpc64__
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static __inline void
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mtmsrd(register_t value)
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{
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__asm __volatile ("mtmsrd %0; isync" :: "r"(value));
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}
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#endif
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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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#ifndef __powerpc64__
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static __inline void
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mtsrin(vm_offset_t va, register_t value)
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{
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__asm __volatile ("mtsrin %0,%1; isync" :: "r"(value), "r"(va));
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}
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static __inline register_t
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mfsrin(vm_offset_t va)
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{
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register_t value;
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__asm __volatile ("mfsrin %0,%1" : "=r"(value) : "r"(va));
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return (value);
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}
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#endif
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static __inline register_t
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mfctrl(void)
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{
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register_t value;
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__asm __volatile ("mfspr %0,136" : "=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 register_t
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mfpvr(void)
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{
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register_t value;
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__asm __volatile ("mfpvr %0" : "=r"(value));
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return (value);
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}
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static __inline u_quad_t
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mftb(void)
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{
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u_quad_t tb;
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#ifdef __powerpc64__
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__asm __volatile ("mftb %0" : "=r"(tb));
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#else
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uint32_t *tbup = (uint32_t *)&tb;
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uint32_t *tblp = tbup + 1;
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do {
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*tbup = mfspr(TBR_TBU);
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*tblp = mfspr(TBR_TBL);
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} while (*tbup != mfspr(TBR_TBU));
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#endif
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return (tb);
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}
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static __inline void
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mttb(u_quad_t time)
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{
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mtspr(TBR_TBWL, 0);
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mtspr(TBR_TBWU, (uint32_t)(time >> 32));
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mtspr(TBR_TBWL, (uint32_t)(time & 0xffffffff));
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}
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static __inline void
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eieio(void)
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{
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__asm __volatile ("eieio" : : : "memory");
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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" : : : "memory");
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}
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static __inline void
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powerpc_sync(void)
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{
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__asm __volatile ("sync" : : : "memory");
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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);
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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 struct pcpu *
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get_pcpu(void)
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{
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struct pcpu *ret;
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__asm __volatile("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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