123 lines
3.3 KiB
C
123 lines
3.3 KiB
C
/* $NetBSD: cpu.h,v 1.1 2014/08/10 05:47:38 matt Exp $ */
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/*-
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* Copyright (c) 2014 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Matt Thomas of 3am Software Foundry.
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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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _AARCH64_CPU_H_
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#define _AARCH64_CPU_H_
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#ifdef __aarch64__
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#if defined(_KERNEL) || defined(_KMEMUSER)
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struct clockframe {
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uintptr_t cf_pc;
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uint32_t cf_psr;
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int cf_intr_depth;
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};
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#define CLKF_USERMODE(cf) (((cf)->cf_psr & 0x0f) == 0)
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#define CLKF_PC(cf) ((cf)->cf_pc)
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#define CLKF_INTR(cf) ((cf)->cf_intr_depth > 0)
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#include <sys/cpu_data.h>
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#include <sys/device_if.h>
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#include <sys/intr.h>
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struct cpu_info {
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struct cpu_data ci_data;
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device_t ci_dev;
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cpuid_t ci_cpuid;
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cpuid_t ci_gicid; // used for IPIs
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struct lwp *ci_curlwp;
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struct lwp *ci_softlwps[SOFTINT_COUNT];
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uint64_t ci_lastintr;
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int ci_mtx_oldspl;
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int ci_mtx_count;
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int ci_want_resched;
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int ci_cpl;
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u_int ci_softints;
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volatile u_int ci_astpending;
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volatile u_int ci_intr_depth;
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};
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static inline struct cpu_info *
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curcpu(void)
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{
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struct cpu_info *ci;
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__asm __volatile("mrs %0, tpidr_el1" : "=r"(ci));
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return ci;
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}
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#define curlwp (curcpu()->ci_curlwp)
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static inline cpuid_t
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cpu_number(void)
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{
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return curcpu()->ci_gicid;
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}
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void cpu_set_curpri(int);
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void cpu_proc_fork(struct proc *, struct proc *);
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void cpu_signotify(struct lwp *);
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void cpu_need_proftick(struct lwp *l);
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void cpu_boot_secondary_processors(void);
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#define CPU_INFO_ITERATOR cpuid_t
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#define CPU_INFO_FOREACH(cii, ci) \
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(cii) = 0; ((ci) = cpu_infos[cii]) != NULL; (cii)++
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static inline void
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cpu_dosoftints(void)
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{
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extern void dosoftints(void);
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struct cpu_info * const ci = curcpu();
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if (ci->ci_intr_depth == 0
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&& (ci->ci_data.cpu_softints >> ci->ci_cpl) > 0)
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dosoftints();
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}
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static inline bool
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cpu_intr_p(void)
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{
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return curcpu()->ci_intr_depth > 0;
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}
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#endif /* _KERNEL || _KMEMUSER */
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#elif defined(__arm__)
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#include <arm/cpu.h>
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#endif
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#endif /* _AARCH64_CPU_H_ */
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