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553cb3ed46
sys/param.h was manually adjusted to not define __NetBSD_Version__ since it will be defined by the compiler.
98 lines
No EOL
3 KiB
C
Vendored
98 lines
No EOL
3 KiB
C
Vendored
/* $NetBSD: cpu.h,v 1.70 2021/11/02 11:26:03 ryo Exp $ */
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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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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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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* @(#)cpu.h 5.4 (Berkeley) 5/9/91
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*/
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#ifndef _AMD64_CPU_H_
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#define _AMD64_CPU_H_
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#ifdef __x86_64__
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#include <x86/cpu.h>
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#ifdef _KERNEL
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#if defined(__GNUC__) && !defined(_MODULE)
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static struct cpu_info *x86_curcpu(void);
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static lwp_t *x86_curlwp(void);
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__inline __always_inline static struct cpu_info * __unused __nomsan
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x86_curcpu(void)
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{
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struct cpu_info *ci;
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__asm volatile("movq %%gs:%1, %0" :
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"=r" (ci) :
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"m"
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(*(struct cpu_info * const *)offsetof(struct cpu_info, ci_self)));
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return ci;
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}
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__inline static lwp_t * __unused __nomsan __attribute__ ((const))
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x86_curlwp(void)
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{
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lwp_t *l;
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__asm volatile("movq %%gs:%1, %0" :
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"=r" (l) :
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"m"
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(*(struct cpu_info * const *)offsetof(struct cpu_info, ci_curlwp)));
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return l;
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}
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#endif /* __GNUC__ && !_MODULE */
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#ifdef XENPV
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#define CLKF_USERMODE(frame) (curcpu()->ci_xen_clockf_usermode)
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#define CLKF_PC(frame) (curcpu()->ci_xen_clockf_pc)
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#else /* XENPV */
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#define CLKF_USERMODE(frame) USERMODE((frame)->cf_if.if_tf.tf_cs)
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#define CLKF_PC(frame) ((frame)->cf_if.if_tf.tf_rip)
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#endif /* XENPV */
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#define CLKF_INTR(frame) (curcpu()->ci_idepth > 0)
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#define LWP_PC(l) ((l)->l_md.md_regs->tf_rip)
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void *cpu_uarea_alloc(bool);
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bool cpu_uarea_free(void *);
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#endif /* _KERNEL */
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#else /* __x86_64__ */
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#include <i386/cpu.h>
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#endif /* __x86_64__ */
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#endif /* !_AMD64_CPU_H_ */ |