544f047f89
The mpidr register is 64 bit on arm64 and 32 bit on arm. Fix this by extending the arm64 definition to include the top 32 bits. To preserve KBI when MFCing split the value into two 32 bit values. This will be cleaned up later only on main. Reviewed by: bz Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D36346
94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
/*-
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* Copyright (c) 1999 Luoqi Chen <luoqi@freebsd.org>
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* All rights reserved.
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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 AUTHOR 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 AUTHOR 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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* from: FreeBSD: src/sys/i386/include/globaldata.h,v 1.27 2001/04/27
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* $FreeBSD$
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*/
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#ifndef _MACHINE_PCPU_H_
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#define _MACHINE_PCPU_H_
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#include <machine/cpu.h>
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#include <machine/cpufunc.h>
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#define ALT_STACK_SIZE 128
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typedef int (*pcpu_bp_harden)(void);
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typedef int (*pcpu_ssbd)(int);
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struct debug_monitor_state;
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#define PCPU_MD_FIELDS \
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u_int pc_acpi_id; /* ACPI CPU id */ \
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u_int pc_midr; /* stored MIDR value */ \
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uint64_t pc_clock; \
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pcpu_bp_harden pc_bp_harden; \
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pcpu_ssbd pc_ssbd; \
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struct pmap *pc_curpmap; \
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struct pmap *pc_curvmpmap; \
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u_int pc_bcast_tlbi_workaround; \
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/* Store as two u_int values to preserve KBI */ \
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u_int pc_mpidr_low; /* lower MPIDR 32 bits */ \
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u_int pc_mpidr_high; /* upper MPIDR 32 bits */ \
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char __pad[197]
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#ifdef _KERNEL
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struct pcb;
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struct pcpu;
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register struct pcpu *pcpup __asm ("x18");
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static inline struct pcpu *
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get_pcpu(void)
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{
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struct pcpu *pcpu;
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__asm __volatile("mov %0, x18" : "=&r"(pcpu));
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return (pcpu);
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}
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static inline struct thread *
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get_curthread(void)
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{
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struct thread *td;
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__asm __volatile("ldr %0, [x18]" : "=&r"(td));
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return (td);
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}
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#define curthread get_curthread()
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#define PCPU_GET(member) (pcpup->pc_ ## member)
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#define PCPU_ADD(member, value) (pcpup->pc_ ## member += (value))
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#define PCPU_PTR(member) (&pcpup->pc_ ## member)
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#define PCPU_SET(member,value) (pcpup->pc_ ## member = (value))
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#define PCPU_GET_MPIDR(pc) \
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((((uint64_t)((pc)->pc_mpidr_high)) << 32) | ((pc)->pc_mpidr_low))
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#endif /* _KERNEL */
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#endif /* !_MACHINE_PCPU_H_ */
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