1 /* $NetBSD: pcb.h,v 1.10 2003/10/13 21:46:39 scw Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 Matt Thomas <matt@3am-software.com>. 5 * Copyright (c) 1994 Mark Brinicombe. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the RiscBSD team. 19 * 4. The name "RiscBSD" nor the name of the author may be used to 20 * endorse or promote products derived from this software without specific 21 * prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY RISCBSD ``AS IS'' AND ANY EXPRESS OR IMPLIED 24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL RISCBSD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * $FreeBSD$ 36 */ 37 38 #ifndef _MACHINE_PCB_H_ 39 #define _MACHINE_PCB_H_ 40 41 #include <machine/frame.h> 42 #include <machine/fp.h> 43 44 45 struct trapframe; 46 47 struct pcb_arm32 { 48 vm_offset_t pcb32_pagedir; /* PT hooks */ 49 uint32_t *pcb32_pl1vec; /* PTR to vector_base L1 entry*/ 50 uint32_t pcb32_l1vec; /* Value to stuff on ctx sw */ 51 u_int pcb32_dacr; /* Domain Access Control Reg */ 52 /* 53 * WARNING! 54 * cpuswitch.S relies on pcb32_r8 being quad-aligned in struct pcb 55 * (due to the use of "strd" when compiled for XSCALE) 56 */ 57 u_int pcb32_r8; /* used */ 58 u_int pcb32_r9; /* used */ 59 u_int pcb32_r10; /* used */ 60 u_int pcb32_r11; /* used */ 61 u_int pcb32_r12; /* used */ 62 u_int pcb32_sp; /* used */ 63 u_int pcb32_lr; 64 u_int pcb32_pc; 65 u_int pcb32_und_sp; 66 }; 67 #define pcb_pagedir un_32.pcb32_pagedir 68 #define pcb_pl1vec un_32.pcb32_pl1vec 69 #define pcb_l1vec un_32.pcb32_l1vec 70 #define pcb_dacr un_32.pcb32_dacr 71 #define pcb_cstate un_32.pcb32_cstate 72 73 /* 74 * WARNING! 75 * See warning for struct pcb_arm32, above, before changing struct pcb! 76 */ 77 struct pcb { 78 u_int pcb_flags; 79 #define PCB_OWNFPU 0x00000001 80 #define PCB_NOALIGNFLT 0x00000002 81 caddr_t pcb_onfault; /* On fault handler */ 82 struct pcb_arm32 un_32; 83 #ifdef ARM_VFP_SUPPORT 84 struct vfp_state pcb_vfpstate; /* VP/NEON state */ 85 u_int pcb_vfpcpu; /* VP/NEON last cpu */ 86 #else 87 struct fpe_sp_state pcb_fpstate; /* Floating Point state */ 88 #endif 89 }; 90 91 /* 92 * No additional data for core dumps. 93 */ 94 struct md_coredump { 95 int md_empty; 96 }; 97 98 void makectx(struct trapframe *tf, struct pcb *pcb); 99 100 #ifdef _KERNEL 101 102 void savectx(struct pcb *) __returns_twice; 103 #endif /* _KERNEL */ 104 105 #endif /* !_MACHINE_PCB_H_ */ 106