1 /*- 2 * Copyright (c) 2001 Jake Burkholder. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef _MACHINE_PCB_H_ 30 #define _MACHINE_PCB_H_ 31 32 #ifndef LOCORE 33 34 struct trapframe; 35 36 #define PCB_LR 30 37 struct pcb { 38 uint64_t pcb_x[31]; 39 uint64_t pcb_pc; 40 /* These two need to be in order as we access them together */ 41 uint64_t pcb_sp; 42 uint64_t pcb_tpidr_el0; 43 vm_offset_t pcb_l0addr; 44 45 /* Fault handler, the error value is passed in x0 */ 46 vm_offset_t pcb_onfault; 47 48 u_int pcb_flags; 49 #define PCB_SINGLE_STEP_SHIFT 0 50 #define PCB_SINGLE_STEP (1 << PCB_SINGLE_STEP_SHIFT) 51 52 /* Place last to simplify the asm to access the rest if the struct */ 53 __uint128_t pcb_vfp[32]; 54 uint32_t pcb_fpcr; 55 uint32_t pcb_fpsr; 56 int pcb_fpflags; 57 #define PCB_FP_STARTED 0x01 58 u_int pcb_vfpcpu; /* Last cpu this thread ran VFP code */ 59 }; 60 61 #ifdef _KERNEL 62 void makectx(struct trapframe *tf, struct pcb *pcb); 63 int savectx(struct pcb *pcb) __returns_twice; 64 #endif 65 66 #endif /* !LOCORE */ 67 68 #endif /* !_MACHINE_PCB_H_ */ 69