1/*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2019 Ruslan Bukin <br@bsdpad.com> 5 * 6 * This software was developed by SRI International and the University of 7 * Cambridge Computer Laboratory (Department of Computer Science and 8 * Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the 9 * DARPA SSITH research programme. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33#include <machine/asm.h> 34__FBSDID("$FreeBSD$"); 35 36.macro arm_smccc_1_0 insn 37ENTRY(arm_smccc_\insn) 38 \insn #0 39 ldr x4, [sp] 40 cbz x4, 1f 41 stp x0, x1, [x4, #16 * 0] 42 stp x2, x3, [x4, #16 * 1] 431: ret 44END(arm_smccc_\insn) 45.endm 46 47/* 48 * int arm_smccc_*(register_t, register_t, register_t, register_t, 49 * register_t, register_t, register_t, register_t, 50 * struct arm_smccc_res *res) 51 */ 52arm_smccc_1_0 hvc 53arm_smccc_1_0 smc 54 55.macro arm_smccc_1_2 insn 56ENTRY(arm_smccc_1_2_\insn) 57 stp x1, x19, [sp, #-16]! 58 mov x19, x0 59 ldp x0, x1, [x19, #16 * 0] 60 ldp x2, x3, [x19, #16 * 1] 61 ldp x4, x5, [x19, #16 * 2] 62 ldp x6, x7, [x19, #16 * 3] 63 ldp x8, x9, [x19, #16 * 4] 64 ldp x10, x11, [x19, #16 * 5] 65 ldp x12, x13, [x19, #16 * 6] 66 ldp x14, x15, [x19, #16 * 7] 67 ldp x16, x17, [x19, #16 * 8] 68 \insn #0 69 ldr x19, [sp] 70 cbz x19, 1f 71 stp x0, x1, [x19, #16 * 0] 72 stp x2, x3, [x19, #16 * 1] 73 stp x4, x5, [x19, #16 * 2] 74 stp x6, x7, [x19, #16 * 3] 75 stp x8, x9, [x19, #16 * 4] 76 stp x10, x11, [x19, #16 * 5] 77 stp x12, x13, [x19, #16 * 6] 78 stp x14, x15, [x19, #16 * 7] 79 stp x16, x17, [x19, #16 * 8] 801: ldp xzr, x19, [sp], #16 81 ret 82END(arm_smccc_1_2\insn) 83.endm 84/* int arm_smccc_1_2_*(const struct arm_smccc_1_2_regs *args, 85 * struct arm_smccc_1_2_regs *res) 86 */ 87arm_smccc_1_2 hvc 88arm_smccc_1_2 smc 89