1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * Copyright (C) 2020 FORTH-ICS/CARV 4 * Nick Kossifidis <mick@ics.forth.gr> 5 */ 6 7#include <asm/asm.h> /* For RISCV_* and REG_* macros */ 8#include <asm/csr.h> /* For CSR_* macros */ 9#include <asm/asm-offsets.h> /* For offsets on pt_regs */ 10#include <linux/linkage.h> /* For SYM_* macros */ 11 12.section ".text" 13SYM_CODE_START(riscv_crash_save_regs) 14 REG_S ra, PT_RA(a0) /* x1 */ 15 REG_S sp, PT_SP(a0) /* x2 */ 16 REG_S gp, PT_GP(a0) /* x3 */ 17 REG_S tp, PT_TP(a0) /* x4 */ 18 REG_S t0, PT_T0(a0) /* x5 */ 19 REG_S t1, PT_T1(a0) /* x6 */ 20 REG_S t2, PT_T2(a0) /* x7 */ 21 REG_S s0, PT_S0(a0) /* x8/fp */ 22 REG_S s1, PT_S1(a0) /* x9 */ 23 REG_S a0, PT_A0(a0) /* x10 */ 24 REG_S a1, PT_A1(a0) /* x11 */ 25 REG_S a2, PT_A2(a0) /* x12 */ 26 REG_S a3, PT_A3(a0) /* x13 */ 27 REG_S a4, PT_A4(a0) /* x14 */ 28 REG_S a5, PT_A5(a0) /* x15 */ 29 REG_S a6, PT_A6(a0) /* x16 */ 30 REG_S a7, PT_A7(a0) /* x17 */ 31 REG_S s2, PT_S2(a0) /* x18 */ 32 REG_S s3, PT_S3(a0) /* x19 */ 33 REG_S s4, PT_S4(a0) /* x20 */ 34 REG_S s5, PT_S5(a0) /* x21 */ 35 REG_S s6, PT_S6(a0) /* x22 */ 36 REG_S s7, PT_S7(a0) /* x23 */ 37 REG_S s8, PT_S8(a0) /* x24 */ 38 REG_S s9, PT_S9(a0) /* x25 */ 39 REG_S s10, PT_S10(a0) /* x26 */ 40 REG_S s11, PT_S11(a0) /* x27 */ 41 REG_S t3, PT_T3(a0) /* x28 */ 42 REG_S t4, PT_T4(a0) /* x29 */ 43 REG_S t5, PT_T5(a0) /* x30 */ 44 REG_S t6, PT_T6(a0) /* x31 */ 45 46 csrr t1, CSR_STATUS 47 auipc t2, 0x0 48 csrr t3, CSR_TVAL 49 csrr t4, CSR_CAUSE 50 51 REG_S t1, PT_STATUS(a0) 52 REG_S t2, PT_EPC(a0) 53 REG_S t3, PT_BADADDR(a0) 54 REG_S t4, PT_CAUSE(a0) 55 ret 56SYM_CODE_END(riscv_crash_save_regs) 57