/* $NetBSD: cpu.h,v 1.17 2019/01/10 17:05:56 scole Exp $ */ /*- * Copyright (c) 2006 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, * NASA Ames Research Center, and by Charles M. Hannum. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /*- * Copyright (c) 1988 University of Utah. * Copyright (c) 1982, 1990, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * the Systems Programming Group of the University of Utah Computer * Science Department. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * from: Utah $Hdr: cpu.h 1.16 91/03/25$ * * @(#)cpu.h 8.4 (Berkeley) 1/5/94 */ #ifndef _IA64_CPU_H_ #define _IA64_CPU_H_ #ifdef _KERNEL #include #include #include #include #include #include struct cpu_info { /* * Public members. */ struct cpu_data ci_data; /* MI per-cpu data */ device_t ci_dev; /* pointer to our device */ struct lwp *ci_curlwp; /* current owner of the processor */ struct cctr_state ci_cc; /* cycle counter state */ struct cpu_info *ci_next; /* next cpu_info structure */ volatile int ci_mtx_count; /* Negative count of spin mutexes */ volatile int ci_mtx_oldspl; /* Old SPL at this ci_idepth */ /* XXX: Todo */ /* * Private members. */ cpuid_t ci_cpuid; /* our CPU ID */ uint32_t ci_acpiid; /* our ACPI/MADT ID */ uint32_t ci_initapicid; /* our intitial APIC ID */ struct pmap *ci_pmap; /* current pmap */ /* XXX FreeBSD has *pcb_current_pmap in pcb ? */ struct lwp *ci_fpcurlwp; /* current owner of the FPU */ paddr_t ci_curpcb; /* PA of current HW PCB */ struct pcb *ci_idle_pcb; /* our idle PCB */ u_long ci_want_resched; /* preempt current process */ u_long ci_intrdepth; /* interrupt trap depth */ struct trapframe *ci_db_regs; /* registers for debuggers */ uint64_t ci_clock; /* clock counter */ uint64_t ci_clockadj; /* clock adjust */ uint64_t ci_vhpt; /* address of vhpt */ }; extern struct cpu_info cpu_info_primary; extern struct cpu_info *cpu_info_list; #define CPU_INFO_ITERATOR int __unused #define CPU_INFO_FOREACH(cii, ci) ci = cpu_info_list; \ ci != NULL; ci = ci->ci_next #ifdef MULTIPROCESSOR /* * XXX: TODO use percpu infrastructure that yamt proposed or use KR? for * storing the percpu pointer. */ #else #define curcpu() (&cpu_info_primary) #endif /* MULTIPROCESSOR */ #define curlwp (curcpu()->ci_curlwp) #define cpu_number() 0 /*XXX: FIXME */ #define aston(l) ((l)->l_md.md_astpending = 1) #define need_resched(ci) /*XXX: FIXME */ struct clockframe { struct trapframe cf_tf; }; #define CLKF_PC(cf) (TRAPF_PC(&(cf)->cf_tf)) #define CLKF_CPL(cf) (TRAPF_CPL(&(cf)->cf_tf)) #define CLKF_USERMODE(cf) (TRAPF_USERMODE(&(cf)->cf_tf)) #define CLKF_INTR(frame) (curcpu()->ci_intrdepth) #define TRAPF_PC(tf) ((tf)->tf_special.iip) #define TRAPF_CPL(tf) ((tf)->tf_special.psr & IA64_PSR_CPL) #define TRAPF_USERMODE(tf) (TRAPF_CPL(tf) != IA64_PSR_CPL_KERN) /* * Give a profiling tick to the current process when the user profiling * buffer pages are invalid. XXX:Fixme.... On the ia64 I haven't yet figured * out what to do about this.. XXX. */ /* extern void cpu_need_proftick(struct lwp *l); */ #define cpu_need_proftick(l) __nothing /* * Notify the LWP l that it has a signal pending, process as soon as possible. */ #define cpu_signotify(l) aston(l) // void cpu_need_resched(struct cpu_info *ci, int flags) #define cpu_need_resched(ci, f) do { \ __USE(ci); \ __USE(f); \ } while(/*CONSTCOND*/0) #define setsoftclock() __nothing /*XXX: FIXME */ /* machdep.c */ int cpu_maxproc(void); /*XXX: Fill in machdep.c */ #define cpu_proc_fork(p1, p2) __nothing /* XXX: Look into this. */ #define DELAY(x) __nothing /* XXX: FIXME */ #define cpu_idle() ia64_pause() #endif /* _KERNEL_ */ #endif /* _IA64_CPU_H */