1 /* SPDX-License-Identifier: BSD-2-Clause */ 2 /* 3 * Copyright (c) 2017, EPAM Systems 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright notice, 13 * this list of conditions and the following disclaimer in the documentation 14 * and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef __KERNEL_MSG_PARAM_H 30 #define __KERNEL_MSG_PARAM_H 31 32 #include <compiler.h> 33 #include <mm/mobj.h> 34 #include <optee_msg.h> 35 #include <stdio.h> 36 #include <types_ext.h> 37 38 /** 39 * msg_param_mobj_from_noncontig() - construct mobj from non-contiguous 40 * list of pages. 41 * 42 * @buf_ptr - optee_msg_param.u.tmem.buf_ptr value 43 * @size - optee_msg_param.u.tmem.size value 44 * @shm_ref - optee_msg_param.u.tmem.shm_ref value 45 * @map_buffer - true if buffer needs to be mapped into OP-TEE address space 46 * 47 * return: 48 * mobj or NULL on error 49 */ 50 #ifdef CFG_CORE_DYN_SHM 51 struct mobj *msg_param_mobj_from_noncontig(paddr_t buf_ptr, size_t size, 52 uint64_t shm_ref, bool map_buffer); 53 #else 54 static inline struct mobj * 55 msg_param_mobj_from_noncontig(paddr_t buf_ptr __unused, size_t size __unused, 56 uint64_t shm_ref __unused, 57 bool map_buffer __unused) 58 { 59 return NULL; 60 } 61 #endif 62 63 /** 64 * msg_param_attr_is_tmem - helper functions that cheks if attribute is tmem 65 * 66 * @attr - attribute to check 67 * 68 * return: 69 * corresponding size field 70 */ 71 static inline bool msg_param_attr_is_tmem(uint64_t attr) 72 { 73 switch (attr & OPTEE_MSG_ATTR_TYPE_MASK) { 74 case OPTEE_MSG_ATTR_TYPE_TMEM_INPUT: 75 case OPTEE_MSG_ATTR_TYPE_TMEM_OUTPUT: 76 case OPTEE_MSG_ATTR_TYPE_TMEM_INOUT: 77 return true; 78 default: 79 return false; 80 } 81 } 82 83 #endif /*__KERNEL_MSG_PARAM_H*/ 84