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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2020 FORTH-ICS/CARV
* Nick Kossifidis <mick@ics.forth.gr>
*/
#include <asm/asm.h> /* For RISCV_* and REG_* macros */
#include <asm/csr.h> /* For CSR_* macros */
#include <asm/asm-offsets.h> /* For offsets on pt_regs */
#include <linux/linkage.h> /* For SYM_* macros */
.section ".text"
SYM_CODE_START(riscv_crash_save_regs)
REG_S ra, PT_RA(a0) /* x1 */
REG_S sp, PT_SP(a0) /* x2 */
REG_S gp, PT_GP(a0) /* x3 */
REG_S tp, PT_TP(a0) /* x4 */
REG_S t0, PT_T0(a0) /* x5 */
REG_S t1, PT_T1(a0) /* x6 */
REG_S t2, PT_T2(a0) /* x7 */
REG_S s0, PT_S0(a0) /* x8/fp */
REG_S s1, PT_S1(a0) /* x9 */
REG_S a0, PT_A0(a0) /* x10 */
REG_S a1, PT_A1(a0) /* x11 */
REG_S a2, PT_A2(a0) /* x12 */
REG_S a3, PT_A3(a0) /* x13 */
REG_S a4, PT_A4(a0) /* x14 */
REG_S a5, PT_A5(a0) /* x15 */
REG_S a6, PT_A6(a0) /* x16 */
REG_S a7, PT_A7(a0) /* x17 */
REG_S s2, PT_S2(a0) /* x18 */
REG_S s3, PT_S3(a0) /* x19 */
REG_S s4, PT_S4(a0) /* x20 */
REG_S s5, PT_S5(a0) /* x21 */
REG_S s6, PT_S6(a0) /* x22 */
REG_S s7, PT_S7(a0) /* x23 */
REG_S s8, PT_S8(a0) /* x24 */
REG_S s9, PT_S9(a0) /* x25 */
REG_S s10, PT_S10(a0) /* x26 */
REG_S s11, PT_S11(a0) /* x27 */
REG_S t3, PT_T3(a0) /* x28 */
REG_S t4, PT_T4(a0) /* x29 */
REG_S t5, PT_T5(a0) /* x30 */
REG_S t6, PT_T6(a0) /* x31 */
csrr t1, CSR_STATUS
csrr t2, CSR_EPC
csrr t3, CSR_TVAL
csrr t4, CSR_CAUSE
REG_S t1, PT_STATUS(a0)
REG_S t2, PT_EPC(a0)
REG_S t3, PT_BADADDR(a0)
REG_S t4, PT_CAUSE(a0)
ret
SYM_CODE_END(riscv_crash_save_regs)
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