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      1 /* $NetBSD: frame.h,v 1.5 2020/08/06 06:49:55 ryo Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2014 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Matt Thomas of 3am Software Foundry.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _AARCH64_FRAME_H_
     33 #define _AARCH64_FRAME_H_
     34 
     35 #ifdef __aarch64__
     36 
     37 #include <aarch64/reg.h>
     38 
     39 struct trapframe {
     40 	struct reg tf_regs __aligned(16);
     41 	uint64_t tf_esr;		// 32-bit register
     42 	uint64_t tf_far;		// 64-bit register
     43 #define tf_reg		tf_regs.r_reg
     44 #define tf_lr		tf_regs.r_reg[30]
     45 #define tf_pc		tf_regs.r_pc
     46 #define tf_sp		tf_regs.r_sp
     47 #define tf_spsr		tf_regs.r_spsr
     48 };
     49 
     50 #ifdef _KERNEL
     51 /* size of trapframe (stack pointer) must be 16byte aligned */
     52 __CTASSERT((sizeof(struct trapframe) & 15) == 0);
     53 #endif
     54 
     55 #define TF_SIZE		sizeof(struct trapframe)
     56 
     57 #define FB_X19	0
     58 #define FB_X20	1
     59 #define FB_X21	2
     60 #define FB_X22	3
     61 #define FB_X23	4
     62 #define FB_X24	5
     63 #define FB_X25	6
     64 #define FB_X26	7
     65 #define FB_X27	8
     66 #define FB_X28	9
     67 #define FB_X29	10
     68 #define FB_LR	11
     69 #define FB_SP	12
     70 #define FB_MAX	13
     71 struct faultbuf {
     72 	register_t fb_reg[FB_MAX];
     73 };
     74 
     75 #define	lwp_trapframe(l)		((l)->l_md.md_utf)
     76 
     77 #elif defined(__arm__)
     78 
     79 #include <arm/frame.h>
     80 
     81 #endif /* __aarch64__/__arm__ */
     82 
     83 #endif /* _AARCH64_FRAME_H_ */
     84