1 /** 2 * Copyright (c) 2019, The Linux Foundation. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above 10 * copyright notice, this list of conditions and the following 11 * disclaimer in the documentation and/or other materials provided 12 * with the distribution. 13 * * Neither the name of The Linux Foundation nor the names of its 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #ifndef FASTRPC_ANDROID_USER_H 31 #define FASTRPC_ANDROID_USER_H 32 33 #include <assert.h> 34 #include <fcntl.h> 35 #include <asm/ioctl.h> 36 #include <errno.h> 37 38 /* 39 * API to check if kernel supports remote memory allocation 40 * Returns 0 if NOT supported 41 * 42 */ 43 int is_kernel_alloc_supported(int dev, int domain); 44 45 /* 46 * API to allocate ION memory for internal purposes 47 * Returns NULL if allocation fails 48 * 49 */ 50 void* rpcmem_alloc_internal(int heapid, uint32 flags, int size); 51 52 /* 53 * API to free internally allocated ION memory 54 * 55 */ 56 void rpcmem_free_internal(void* po); 57 58 /* 59 * API to get fd of internally allocated ION buffer 60 * Returns valid fd on success and -1 on failure 61 * 62 */ 63 int rpcmem_to_fd_internal(void *po); 64 65 #endif //FASTRPC_ANDROID_USER_H 66