/*- * Copyright (c) 1999 Luoqi Chen <luoqi@freebsd.org> * All rights reserved. * * 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 AUTHOR 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 AUTHOR 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: FreeBSD: src/sys/i386/include/globaldata.h,v 1.27 2001/04/27 * $FreeBSD$ */ #ifndef _MACHINE_PCPU_H_ #define _MACHINE_PCPU_H_ #include <machine/cpu.h> #include <machine/cpufunc.h> #define ALT_STACK_SIZE 128 typedef int (*pcpu_bp_harden)(void); typedef int (*pcpu_ssbd)(int); struct debug_monitor_state; #define PCPU_MD_FIELDS \ u_int pc_acpi_id; /* ACPI CPU id */ \ u_int pc_midr; /* stored MIDR value */ \ uint64_t pc_clock; \ pcpu_bp_harden pc_bp_harden; \ pcpu_ssbd pc_ssbd; \ struct pmap *pc_curpmap; \ struct pmap *pc_curvmpmap; \ u_int pc_bcast_tlbi_workaround; \ /* Store as two u_int values to preserve KBI */ \ u_int pc_mpidr_low; /* lower MPIDR 32 bits */ \ u_int pc_mpidr_high; /* upper MPIDR 32 bits */ \ char __pad[197] #ifdef _KERNEL struct pcb; struct pcpu; register struct pcpu *pcpup __asm ("x18"); static inline struct pcpu * get_pcpu(void) { struct pcpu *pcpu; __asm __volatile("mov %0, x18" : "=&r"(pcpu)); return (pcpu); } static inline struct thread * get_curthread(void) { struct thread *td; __asm __volatile("ldr %0, [x18]" : "=&r"(td)); return (td); } #define curthread get_curthread() #define PCPU_GET(member) (pcpup->pc_ ## member) #define PCPU_ADD(member, value) (pcpup->pc_ ## member += (value)) #define PCPU_PTR(member) (&pcpup->pc_ ## member) #define PCPU_SET(member,value) (pcpup->pc_ ## member = (value)) #define PCPU_GET_MPIDR(pc) \ ((((uint64_t)((pc)->pc_mpidr_high)) << 32) | ((pc)->pc_mpidr_low)) #endif /* _KERNEL */ #endif /* !_MACHINE_PCPU_H_ */