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      1 /* $NetBSD: frame.h,v 1.6 2023/06/23 12:11:22 skrll 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 _RISCV_FRAME_H_
     33 #define _RISCV_FRAME_H_
     34 
     35 #include <riscv/reg.h>
     36 
     37 struct trapframe {
     38 	struct reg tf_regs;
     39 	register_t tf_tval;		// supervisor trap value
     40 	register_t tf_cause;		// supervisor cause register
     41 	register_t tf_sr;		// supervisor status register
     42 	register_t tf_pad;		// For 16-byte alignment
     43 #define tf_reg		tf_regs.r_reg
     44 #define tf_pc		tf_regs.r_pc
     45 #define tf_ra		tf_reg[_X_RA]
     46 #define tf_sp		tf_reg[_X_SP]
     47 #define tf_gp		tf_reg[_X_GP]
     48 #define tf_tp		tf_reg[_X_TP]
     49 #define tf_t0		tf_reg[_X_T0]
     50 #define tf_t1		tf_reg[_X_T1]
     51 #define tf_t2		tf_reg[_X_T2]
     52 #define tf_s0		tf_reg[_X_S0]
     53 #define tf_s1		tf_reg[_X_S1]
     54 #define tf_a0		tf_reg[_X_A0]
     55 #define tf_a1		tf_reg[_X_A1]
     56 #define tf_a2		tf_reg[_X_A2]
     57 #define tf_a3		tf_reg[_X_A3]
     58 #define tf_a4		tf_reg[_X_A4]
     59 #define tf_a5		tf_reg[_X_A5]
     60 #define tf_a6		tf_reg[_X_A6]
     61 #define tf_a7		tf_reg[_X_A7]
     62 #define tf_s2		tf_reg[_X_S2]
     63 #define tf_s3		tf_reg[_X_S3]
     64 #define tf_s4		tf_reg[_X_S4]
     65 #define tf_s5		tf_reg[_X_S5]
     66 #define tf_s6		tf_reg[_X_S6]
     67 #define tf_s7		tf_reg[_X_S7]
     68 #define tf_s8		tf_reg[_X_S8]
     69 #define tf_s9		tf_reg[_X_S9]
     70 #define tf_s10		tf_reg[_X_S10]
     71 #define tf_s11		tf_reg[_X_S11]
     72 #define tf_t3		tf_reg[_X_T3]
     73 #define tf_t4		tf_reg[_X_T4]
     74 #define tf_t5		tf_reg[_X_T5]
     75 #define tf_t6		tf_reg[_X_T6]
     76 };
     77 
     78 /*
     79  * Ensure the trapframe is a multiple of 16bytes so that stack
     80  * alignment is preserved.
     81  */
     82 __CTASSERT((sizeof(struct trapframe) & (16 - 1)) == 0);
     83 
     84 #ifdef _LP64
     85 // For COMPAT_NETBSD32 coredumps
     86 struct trapframe32 {
     87 	struct reg32 tf_regs;
     88 	register32_t tf_tval;
     89 	register32_t tf_cause;
     90 	register32_t tf_sr;
     91 	register32_t tf_pad;
     92 };
     93 #endif
     94 
     95 
     96 #define lwp_trapframe(l) ((l)->l_md.md_utf)
     97 
     98 
     99 #endif /* _RISCV_FRAME_H_ */
    100