1 /* SPDX-License-Identifier: BSD-2-Clause */ 2 /* 3 * Copyright (c) 2014, STMicroelectronics International N.V. 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 TEE_INTERNAL_API_EXTENSIONS_H 30 #define TEE_INTERNAL_API_EXTENSIONS_H 31 32 /* trace support */ 33 #include <trace.h> 34 #include <stdio.h> 35 #include <tee_api_defines_extensions.h> 36 #include <tee_api_types.h> 37 38 void tee_user_mem_mark_heap(void); 39 size_t tee_user_mem_check_heap(void); 40 /* Hint implementation defines */ 41 #define TEE_USER_MEM_HINT_NO_FILL_ZERO 0x80000000 42 43 /* 44 * Cache maintenance support (TA requires the CACHE_MAINTENANCE property) 45 * 46 * TEE_CacheClean() Write back to memory any dirty data cache lines. The line 47 * is marked as not dirty. The valid bit is unchanged. 48 * 49 * TEE_CacheFlush() Purges any valid data cache lines. Any dirty cache lines 50 * are first written back to memory, then the cache line is 51 * invalidated. 52 * 53 * TEE_CacheInvalidate() Invalidate any valid data cache lines. Any dirty line 54 * are not written back to memory. 55 */ 56 TEE_Result TEE_CacheClean(char *buf, size_t len); 57 TEE_Result TEE_CacheFlush(char *buf, size_t len); 58 TEE_Result TEE_CacheInvalidate(char *buf, size_t len); 59 60 #endif 61