1 /* $OpenBSD: pcb.h,v 1.8 2018/01/26 16:22:20 kettenis Exp $ */ 2 /* $NetBSD: pcb.h,v 1.10 2003/10/13 21:46:39 scw Exp $ */ 3 4 /* 5 * Copyright (c) 2001 Matt Thomas <matt@3am-software.com>. 6 * Copyright (c) 1994 Mark Brinicombe. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the RiscBSD team. 20 * 4. The name "RiscBSD" nor the name of the author may be used to 21 * endorse or promote products derived from this software without specific 22 * prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY RISCBSD ``AS IS'' AND ANY EXPRESS OR IMPLIED 25 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 26 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 27 * IN NO EVENT SHALL RISCBSD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 28 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 29 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #ifndef _ARM_PCB_H_ 38 #define _ARM_PCB_H_ 39 40 #include <machine/frame.h> 41 42 #include <arm/pte.h> 43 #include <arm/reg.h> 44 45 struct trapframe; 46 47 struct pcb_arm32 { 48 paddr_t pcb32_pagedir; /* PT hooks */ 49 pd_entry_t *pcb32_pl1vec; /* PTR to vector_base L1 entry*/ 50 pd_entry_t pcb32_l1vec; /* Value to stuff on ctx sw */ 51 u_int pcb32_dacr; /* Domain Access Control Reg */ 52 void *pcb32_cstate; /* &pmap->pm_cstate */ 53 /* 54 * WARNING! 55 * cpuswitch.S relies on pcb32_r8 being quad-aligned in struct pcb 56 * (due to the use of "strd" when compiled for XSCALE) 57 */ 58 u_int pcb32_r8; /* used */ 59 u_int pcb32_r9; /* used */ 60 u_int pcb32_r10; /* used */ 61 u_int pcb32_r11; /* used */ 62 u_int pcb32_r12; /* used */ 63 u_int pcb32_sp; /* used */ 64 u_int pcb32_lr; 65 u_int pcb32_pc; 66 u_int pcb32_und_sp; 67 }; 68 #define pcb_pagedir pcb_un.un_32.pcb32_pagedir 69 #define pcb_pl1vec pcb_un.un_32.pcb32_pl1vec 70 #define pcb_l1vec pcb_un.un_32.pcb32_l1vec 71 #define pcb_dacr pcb_un.un_32.pcb32_dacr 72 #define pcb_cstate pcb_un.un_32.pcb32_cstate 73 74 /* 75 * WARNING! 76 * See warning for struct pcb_arm32, above, before changing struct pcb! 77 */ 78 struct pcb { 79 u_int pcb_flags; 80 #define PCB_FPU 0x00000001 /* Process had FPU initialized */ 81 struct trapframe *pcb_tf; 82 caddr_t pcb_onfault; /* On fault handler */ 83 union { 84 struct pcb_arm32 un_32; 85 } pcb_un; 86 struct fpreg pcb_fpstate; /* Floating Point state */ 87 struct cpu_info *pcb_fpcpu; 88 void *pcb_tcb; 89 }; 90 91 #endif /* _ARM_PCB_H_ */ 92