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      1 /*	pcb.h,v 1.14.22.2 2007/11/06 23:15:05 matt Exp	*/
      2 
      3 /*
      4  * Copyright (c) 2001 Matt Thomas <matt (at) 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 
     36 #ifndef	_ARM_PCB_H_
     37 #define	_ARM_PCB_H_
     38 
     39 #include <machine/frame.h>
     40 
     41 #include <arm/arm32/pte.h>
     42 #include <arm/reg.h>
     43 
     44 struct pcb_faultinfo {
     45 	void *pfi_faultptep;
     46 	vaddr_t pfi_faultaddr;
     47 	u_int pfi_repeats;
     48 	pid_t pfi_lastpid;
     49 	uint8_t pfi_faulttype;
     50 };
     51 
     52 #define	pcb_ksp		pcb_sp
     53 
     54 struct pcb {
     55 	/*
     56 	 * WARNING!
     57 	 * cpuswitchto.S relies on pcb_r8 being quad-aligned
     58 	 * (due to the use of "strd" when compiled for XSCALE)
     59 	 */
     60 	u_int	pcb_r8 __aligned(8);		/* used */
     61 	u_int	pcb_r9;				/* used */
     62 	u_int	pcb_r10;			/* used */
     63 	u_int	pcb_r11;			/* used */
     64 	u_int	pcb_r12;			/* used */
     65 	u_int	pcb_sp;				/* used */
     66 	u_int	pcb_lr;
     67 	u_int	pcb_pc;
     68 
     69 	/*
     70 	 * ARMv6 has two user thread/process id registers which can hold
     71 	 * any 32bit quanttiies.
     72 	 */
     73 	u_int	pcb_user_pid_rw;		/* p15, 0, Rd, c13, c0, 2 */
     74 	u_int	pcb_user_pid_ro;		/* p15, 0, Rd, c13, c0, 3 */
     75 
     76 	void *	pcb_onfault;			/* On fault handler */
     77 	struct	vfpreg pcb_vfp;			/* VFP registers */
     78 	struct	vfpreg pcb_kernel_vfp;		/* kernel VFP state */
     79 	struct  pcb_faultinfo pcb_faultinfo;
     80 };
     81 
     82 /*
     83  * No additional data for core dumps.
     84  */
     85 struct md_coredump {
     86 	int	md_empty;
     87 };
     88 
     89 #endif	/* _ARM_PCB_H_ */
     90