cpu.h revision 1.1.4.2
1 1.1.4.2 tls /* $NetBSD: cpu.h,v 1.1.4.2 2014/08/20 00:02:39 tls Exp $ */ 2 1.1.4.2 tls 3 1.1.4.2 tls /*- 4 1.1.4.2 tls * Copyright (c) 2014 The NetBSD Foundation, Inc. 5 1.1.4.2 tls * All rights reserved. 6 1.1.4.2 tls * 7 1.1.4.2 tls * This code is derived from software contributed to The NetBSD Foundation 8 1.1.4.2 tls * by Matt Thomas of 3am Software Foundry. 9 1.1.4.2 tls * 10 1.1.4.2 tls * Redistribution and use in source and binary forms, with or without 11 1.1.4.2 tls * modification, are permitted provided that the following conditions 12 1.1.4.2 tls * are met: 13 1.1.4.2 tls * 1. Redistributions of source code must retain the above copyright 14 1.1.4.2 tls * notice, this list of conditions and the following disclaimer. 15 1.1.4.2 tls * 2. Redistributions in binary form must reproduce the above copyright 16 1.1.4.2 tls * notice, this list of conditions and the following disclaimer in the 17 1.1.4.2 tls * documentation and/or other materials provided with the distribution. 18 1.1.4.2 tls * 19 1.1.4.2 tls * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.1.4.2 tls * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.1.4.2 tls * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.1.4.2 tls * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.1.4.2 tls * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.1.4.2 tls * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.1.4.2 tls * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.1.4.2 tls * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.1.4.2 tls * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.1.4.2 tls * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.1.4.2 tls * POSSIBILITY OF SUCH DAMAGE. 30 1.1.4.2 tls */ 31 1.1.4.2 tls 32 1.1.4.2 tls #ifndef _AARCH64_CPU_H_ 33 1.1.4.2 tls #define _AARCH64_CPU_H_ 34 1.1.4.2 tls 35 1.1.4.2 tls #ifdef __aarch64__ 36 1.1.4.2 tls 37 1.1.4.2 tls #if defined(_KERNEL) || defined(_KMEMUSER) 38 1.1.4.2 tls struct clockframe { 39 1.1.4.2 tls uintptr_t cf_pc; 40 1.1.4.2 tls uint32_t cf_psr; 41 1.1.4.2 tls int cf_intr_depth; 42 1.1.4.2 tls }; 43 1.1.4.2 tls 44 1.1.4.2 tls #define CLKF_USERMODE(cf) (((cf)->cf_psr & 0x0f) == 0) 45 1.1.4.2 tls #define CLKF_PC(cf) ((cf)->cf_pc) 46 1.1.4.2 tls #define CLKF_INTR(cf) ((cf)->cf_intr_depth > 0) 47 1.1.4.2 tls 48 1.1.4.2 tls #include <sys/cpu_data.h> 49 1.1.4.2 tls #include <sys/device_if.h> 50 1.1.4.2 tls #include <sys/intr.h> 51 1.1.4.2 tls 52 1.1.4.2 tls struct cpu_info { 53 1.1.4.2 tls struct cpu_data ci_data; 54 1.1.4.2 tls device_t ci_dev; 55 1.1.4.2 tls cpuid_t ci_cpuid; 56 1.1.4.2 tls cpuid_t ci_gicid; // used for IPIs 57 1.1.4.2 tls struct lwp *ci_curlwp; 58 1.1.4.2 tls struct lwp *ci_softlwps[SOFTINT_COUNT]; 59 1.1.4.2 tls 60 1.1.4.2 tls uint64_t ci_lastintr; 61 1.1.4.2 tls 62 1.1.4.2 tls int ci_mtx_oldspl; 63 1.1.4.2 tls int ci_mtx_count; 64 1.1.4.2 tls 65 1.1.4.2 tls int ci_want_resched; 66 1.1.4.2 tls int ci_cpl; 67 1.1.4.2 tls u_int ci_softints; 68 1.1.4.2 tls volatile u_int ci_astpending; 69 1.1.4.2 tls volatile u_int ci_intr_depth; 70 1.1.4.2 tls }; 71 1.1.4.2 tls 72 1.1.4.2 tls static inline struct cpu_info * 73 1.1.4.2 tls curcpu(void) 74 1.1.4.2 tls { 75 1.1.4.2 tls struct cpu_info *ci; 76 1.1.4.2 tls __asm __volatile("mrs %0, tpidr_el1" : "=r"(ci)); 77 1.1.4.2 tls return ci; 78 1.1.4.2 tls } 79 1.1.4.2 tls 80 1.1.4.2 tls #define curlwp (curcpu()->ci_curlwp) 81 1.1.4.2 tls 82 1.1.4.2 tls static inline cpuid_t 83 1.1.4.2 tls cpu_number(void) 84 1.1.4.2 tls { 85 1.1.4.2 tls return curcpu()->ci_gicid; 86 1.1.4.2 tls } 87 1.1.4.2 tls 88 1.1.4.2 tls void cpu_set_curpri(int); 89 1.1.4.2 tls void cpu_proc_fork(struct proc *, struct proc *); 90 1.1.4.2 tls void cpu_signotify(struct lwp *); 91 1.1.4.2 tls void cpu_need_proftick(struct lwp *l); 92 1.1.4.2 tls void cpu_boot_secondary_processors(void); 93 1.1.4.2 tls 94 1.1.4.2 tls #define CPU_INFO_ITERATOR cpuid_t 95 1.1.4.2 tls #define CPU_INFO_FOREACH(cii, ci) \ 96 1.1.4.2 tls (cii) = 0; ((ci) = cpu_infos[cii]) != NULL; (cii)++ 97 1.1.4.2 tls 98 1.1.4.2 tls static inline void 99 1.1.4.2 tls cpu_dosoftints(void) 100 1.1.4.2 tls { 101 1.1.4.2 tls extern void dosoftints(void); 102 1.1.4.2 tls struct cpu_info * const ci = curcpu(); 103 1.1.4.2 tls if (ci->ci_intr_depth == 0 104 1.1.4.2 tls && (ci->ci_data.cpu_softints >> ci->ci_cpl) > 0) 105 1.1.4.2 tls dosoftints(); 106 1.1.4.2 tls } 107 1.1.4.2 tls 108 1.1.4.2 tls static inline bool 109 1.1.4.2 tls cpu_intr_p(void) 110 1.1.4.2 tls { 111 1.1.4.2 tls return curcpu()->ci_intr_depth > 0; 112 1.1.4.2 tls } 113 1.1.4.2 tls 114 1.1.4.2 tls #endif /* _KERNEL || _KMEMUSER */ 115 1.1.4.2 tls 116 1.1.4.2 tls #elif defined(__arm__) 117 1.1.4.2 tls 118 1.1.4.2 tls #include <arm/cpu.h> 119 1.1.4.2 tls 120 1.1.4.2 tls #endif 121 1.1.4.2 tls 122 1.1.4.2 tls #endif /* _AARCH64_CPU_H_ */ 123
Indexes created Wed Oct 29 20:09:47 GMT 2025