1 /* 2 * Copyright (c) 2011-2017, 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 __GR_ALLOCATOR_H__ 31 #define __GR_ALLOCATOR_H__ 32 33 #ifdef MASTER_SIDE_CP 34 #define SECURE_ALIGN SZ_4K 35 #else 36 #define SECURE_ALIGN SZ_1M 37 #endif 38 39 #include <vector> 40 41 #include "gralloc_priv.h" 42 #include "gr_buf_descriptor.h" 43 #include "gr_ion_alloc.h" 44 45 namespace gralloc1 { 46 47 class Allocator { 48 public: 49 Allocator(); 50 ~Allocator(); 51 bool Init(); 52 int MapBuffer(void **base, unsigned int size, unsigned int offset, int fd); 53 int ImportBuffer(int fd); 54 int FreeBuffer(void *base, unsigned int size, unsigned int offset, int fd, int handle); 55 int CleanBuffer(void *base, unsigned int size, unsigned int offset, int handle, int op); 56 int AllocateMem(AllocData *data, gralloc1_producer_usage_t prod_usage, 57 gralloc1_consumer_usage_t cons_usage); 58 // @return : index of the descriptor with maximum buffer size req 59 bool CheckForBufferSharing(uint32_t num_descriptors, 60 const std::vector<std::shared_ptr<BufferDescriptor>>& descriptors, 61 ssize_t *max_index); 62 int GetImplDefinedFormat(gralloc1_producer_usage_t prod_usage, 63 gralloc1_consumer_usage_t cons_usage, int format); 64 bool UseUncached(gralloc1_producer_usage_t prod_usage, gralloc1_consumer_usage_t cons_usage); 65 66 private: 67 void GetIonHeapInfo(gralloc1_producer_usage_t prod_usage, gralloc1_consumer_usage_t cons_usage, 68 unsigned int *ion_heap_id, unsigned int *alloc_type, unsigned int *ion_flags); 69 70 IonAlloc *ion_allocator_ = NULL; 71 }; 72 73 } // namespace gralloc1 74 75 #endif // __GR_ALLOCATOR_H__ 76