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/* pcb.h,v 1.14.22.2 2007/11/06 23:15:05 matt Exp */
/*
* Copyright (c) 2001 Matt Thomas <matt@3am-software.com>.
* Copyright (c) 1994 Mark Brinicombe.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the RiscBSD team.
* 4. The name "RiscBSD" nor the name of the author may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RISCBSD ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL RISCBSD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _ARM_PCB_H_
#define _ARM_PCB_H_
#include <machine/frame.h>
#include <arm/arm32/pte.h>
#include <arm/reg.h>
struct pcb_arm32 {
/*
* WARNING!
* cpuswitchto.S relies on pcb32_r8 being quad-aligned in struct pcb
* (due to the use of "strd" when compiled for XSCALE)
*/
u_int pcb32_r8 __aligned(8); /* used */
u_int pcb32_r9; /* used */
u_int pcb32_r10; /* used */
u_int pcb32_r11; /* used */
u_int pcb32_r12; /* used */
u_int pcb32_sp; /* used */
u_int pcb32_lr;
u_int pcb32_pc;
/*
* ARMv6 has two user thread/process id registers which can hold
* any 32bit quanttiies.
*/
u_int pcb32_user_pid_rw; /* p15, 0, Rd, c13, c0, 2 */
u_int pcb32_user_pid_ro; /* p15, 0, Rd, c13, c0, 3 */
};
#define pcb_pagedir pcb_un.un_32.pcb32_pagedir
#define pcb_pl1vec pcb_un.un_32.pcb32_pl1vec
#define pcb_l1vec pcb_un.un_32.pcb32_l1vec
#define pcb_dacr pcb_un.un_32.pcb32_dacr
#define pcb_cstate pcb_un.un_32.pcb32_cstate
#define pcb_user_pid_rw pcb_un.un_32.pcb32_user_pid_rw
#ifdef __PROG32
#define pcb_ksp pcb_un.un_32.pcb32_sp
#endif
struct pcb_arm26 {
struct switchframe *pcb26_sf;
};
#define pcb_sf pcb_un.un_26.pcb26_sf
#ifdef __PROG26
#define pcb_ksp pcb_sf.sf_r13
#endif
/*
* WARNING!
* See warning for struct pcb_arm32, above, before changing struct pcb!
*/
struct pcb {
union {
struct pcb_arm32 un_32;
struct pcb_arm26 un_26;
} pcb_un;
void * pcb_onfault; /* On fault handler */
struct vfpreg pcb_vfp; /* VFP registers */
struct vfpreg pcb_kernel_vfp; /* kernel VFP state */
};
/*
* No additional data for core dumps.
*/
struct md_coredump {
int md_empty;
};
#endif /* _ARM_PCB_H_ */
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