1f651b525SAndrew Turner /*- 2f651b525SAndrew Turner * SPDX-License-Identifier: BSD-2-Clause 3f651b525SAndrew Turner * 4f651b525SAndrew Turner * Copyright (c) 2018 Andrew Turner 5f651b525SAndrew Turner * 6f651b525SAndrew Turner * This software was developed by SRI International and the University of 7f651b525SAndrew Turner * Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-10-C-0237 8f651b525SAndrew Turner * ("CTSRD"), as part of the DARPA CRASH research programme. 9f651b525SAndrew Turner * 10f651b525SAndrew Turner * Redistribution and use in source and binary forms, with or without 11f651b525SAndrew Turner * modification, are permitted provided that the following conditions 12f651b525SAndrew Turner * are met: 13f651b525SAndrew Turner * 1. Redistributions of source code must retain the above copyright 14f651b525SAndrew Turner * notice, this list of conditions and the following disclaimer. 15f651b525SAndrew Turner * 2. Redistributions in binary form must reproduce the above copyright 16f651b525SAndrew Turner * notice, this list of conditions and the following disclaimer in the 17f651b525SAndrew Turner * documentation and/or other materials provided with the distribution. 18f651b525SAndrew Turner * 19f651b525SAndrew Turner * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20f651b525SAndrew Turner * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21f651b525SAndrew Turner * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22f651b525SAndrew Turner * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23f651b525SAndrew Turner * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24f651b525SAndrew Turner * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25f651b525SAndrew Turner * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26f651b525SAndrew Turner * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27f651b525SAndrew Turner * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28f651b525SAndrew Turner * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29f651b525SAndrew Turner * SUCH DAMAGE. 30f651b525SAndrew Turner * 31f651b525SAndrew Turner * $FreeBSD$ 32f651b525SAndrew Turner */ 33f651b525SAndrew Turner 34f651b525SAndrew Turner #ifndef _PSCI_SMCCC_H_ 35f651b525SAndrew Turner #define _PSCI_SMCCC_H_ 36f651b525SAndrew Turner 37f651b525SAndrew Turner #define SMCCC_VERSION_MAJOR(ver) (((ver) >> 16) & 0x7fff) 38f651b525SAndrew Turner #define SMCCC_VERSION_MINOR(ver) ((ver) & 0xffff) 39f651b525SAndrew Turner 40f651b525SAndrew Turner #define SMCCC_FUNC_ID(type, call_conv, range, func) \ 41f651b525SAndrew Turner (((type) << 31) | \ 42f651b525SAndrew Turner ((call_conv) << 30) | \ 43f651b525SAndrew Turner (((range) & 0x3f) << 24) | \ 44f651b525SAndrew Turner ((func) & 0xffff)) 45f651b525SAndrew Turner 46f651b525SAndrew Turner #define SMCCC_YIELDING_CALL 0 47f651b525SAndrew Turner #define SMCCC_FAST_CALL 1 48f651b525SAndrew Turner 49f651b525SAndrew Turner #define SMCCC_32BIT_CALL 0 50f651b525SAndrew Turner #define SMCCC_64BIT_CALL 1 51f651b525SAndrew Turner 5209d1a08dSAndrew Turner /* 5309d1a08dSAndrew Turner * Arm Architecture Calls. 5409d1a08dSAndrew Turner * These are documented in the document ARM DEN 0070A. 5509d1a08dSAndrew Turner */ 56f651b525SAndrew Turner #define SMCCC_VERSION \ 5795c4b3c7SAndrew Turner SMCCC_FUNC_ID(SMCCC_FAST_CALL, SMCCC_32BIT_CALL, 0, 0) 58f651b525SAndrew Turner #define SMCCC_ARCH_FEATURES \ 5995c4b3c7SAndrew Turner SMCCC_FUNC_ID(SMCCC_FAST_CALL, SMCCC_32BIT_CALL, 0, 1) 60f651b525SAndrew Turner #define SMCCC_ARCH_WORKAROUND_1 \ 6195c4b3c7SAndrew Turner SMCCC_FUNC_ID(SMCCC_FAST_CALL, SMCCC_32BIT_CALL, 0, 0x8000) 62*0594061eSAndrew Turner #define SMCCC_ARCH_WORKAROUND_2 \ 63*0594061eSAndrew Turner SMCCC_FUNC_ID(SMCCC_FAST_CALL, SMCCC_32BIT_CALL, 0, 0x7fff) 64f651b525SAndrew Turner 6509d1a08dSAndrew Turner /* The return values from ARM DEN 0070A. */ 6609d1a08dSAndrew Turner #define SMCCC_RET_SUCCESS 0 6709d1a08dSAndrew Turner #define SMCCC_RET_NOT_SUPPORTED -1 6809d1a08dSAndrew Turner #define SMCCC_RET_NOT_REQUIRED -2 6909d1a08dSAndrew Turner 70f651b525SAndrew Turner int32_t smccc_arch_features(uint32_t); 71f651b525SAndrew Turner int smccc_arch_workaround_1(void); 72*0594061eSAndrew Turner int smccc_arch_workaround_2(bool); 73f651b525SAndrew Turner 74f651b525SAndrew Turner 75f651b525SAndrew Turner #endif /* _PSCI_SMCCC_H_ */ 76