freebsd-skq/sys/arm64/include/pcb.h
andrew d09ff72cef Add the start of the arm64 machine headers. This is the subset needed to
start getting userland libraries building.

Reviewed by:	imp
Sponsored by:	The FreeBSD Foundation
2015-03-23 11:54:56 +00:00

65 lines
2.1 KiB
C

/*-
* Copyright (c) 2001 Jake Burkholder.
* 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.
*
* $FreeBSD$
*/
#ifndef _MACHINE_PCB_H_
#define _MACHINE_PCB_H_
#ifndef LOCORE
struct trapframe;
#define PCB_LR 30
struct pcb {
uint64_t pcb_x[31];
uint64_t pcb_pc;
/* These two need to be in order as we access them together */
uint64_t pcb_sp;
uint64_t pcb_tpidr_el0;
vm_offset_t pcb_l1addr;
/* Fault handler, the error value is passed in x0 */
vm_offset_t pcb_onfault;
/* Place last to simplify the asm to access the rest if the struct */
__uint128_t pcb_vfp[32];
uint32_t pcb_fpcr;
uint32_t pcb_fpsr;
u_int pcb_fpflags;
#define PCB_FP_STARTED 0x01
u_int pcb_vfpcpu; /* Last cpu this thread ran VFP code */
};
#ifdef _KERNEL
void makectx(struct trapframe *tf, struct pcb *pcb);
int savectx(struct pcb *pcb) __returns_twice;
#endif
#endif /* !LOCORE */
#endif /* !_MACHINE_PCB_H_ */