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/* $OpenBSD: pcb.h,v 1.2 2017/01/10 13:13:12 patrick Exp $ */
/*
* Copyright (c) 2016 Dale Rahn <drahn@dalerahn.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _MACHINE_PCB_H_
#define _MACHINE_PCB_H_
#include <machine/frame.h>
#include <machine/pte.h>
#include <machine/reg.h>
struct trapframe;
/*
* Warning certain fields must be within 256 bytes of the beginning
* of this structure.
*/
struct pcb {
u_int pcb_flags;
#define PCB_FPU 0x00000001 /* Process had FPU initialized */
struct trapframe *pcb_tf;
register_t pcb_sp; // stack pointer of switchframe
caddr_t pcb_onfault; // On fault handler
struct fpreg pcb_fpstate; // Floating Point state */
struct cpu_info *pcb_fpcpu;
paddr_t pcb_pagedir; // ttbr0
void *pcb_tcb;
};
#endif /* _MACHINE_PCB_H_ */
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