Annotation of sys/arch/arm/include/pcb.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: pcb.h,v 1.3 2006/05/27 20:36:05 miod 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: #include <machine/fp.h>
! 42:
! 43: #include <arm/pte.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: struct pcb_arm26 {
! 75: struct switchframe *pcb26_sf;
! 76: };
! 77: #define pcb_sf pcb_un.un_26.pcb26_sf
! 78:
! 79: /*
! 80: * WARNING!
! 81: * See warning for struct pcb_arm32, above, before changing struct pcb!
! 82: */
! 83: struct pcb {
! 84: u_int pcb_flags;
! 85: #define PCB_OWNFPU 0x00000001
! 86: struct trapframe *pcb_tf;
! 87: caddr_t pcb_onfault; /* On fault handler */
! 88: union {
! 89: struct pcb_arm32 un_32;
! 90: struct pcb_arm26 un_26;
! 91: } pcb_un;
! 92: struct fpe_sp_state pcb_fpstate; /* Floating Point state */
! 93: };
! 94: #define pcb_ff pcb_fpstate /* for arm26 */
! 95:
! 96: /*
! 97: * No additional data for core dumps.
! 98: */
! 99: struct md_coredump {
! 100: int md_empty;
! 101: };
! 102:
! 103: #ifdef _KERNEL
! 104: #ifdef MULTIPROCESSOR
! 105: #define curpcb (curcpu()->ci_curpcb)
! 106: #else
! 107: extern struct pcb *curpcb;
! 108: #endif
! 109: #endif /* _KERNEL */
! 110:
! 111: #endif /* _ARM_PCB_H_ */
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