1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "chre/platform/memory.h" 18 #include "chre/platform/slpi/memory.h" 19 20 #ifdef CHRE_SLPI_SEE 21 #include "chre/platform/slpi/see/island_vote_client.h" 22 #endif 23 24 #include <cstdlib> 25 26 extern "C" { 27 28 #ifdef CHRE_SLPI_SEE 29 #include "sns_island_util.h" 30 #endif // CHRE_SLPI_SEE 31 32 #if defined(CHRE_SLPI_SMGR) || defined (CHRE_SLPI_SEE) 33 #include "sns_memmgr.h" 34 #endif 35 36 } // extern "C" 37 38 namespace chre { 39 memoryAlloc(size_t size)40void *memoryAlloc(size_t size) { 41 #ifdef CHRE_SLPI_UIMG_ENABLED 42 #if defined(CHRE_SLPI_SMGR) 43 return SNS_OS_U_MALLOC(SNS_CHRE, size); 44 #elif defined(CHRE_SLPI_SEE) 45 void *ptr = sns_malloc(SNS_HEAP_CHRE_ISLAND, size); 46 47 // Fall back to big image memory when uimg memory is exhausted. 48 // Must exclude size 0 as clients may not explicitly free memory of size 0, 49 // which may mistakenly hold the system in big image. 50 if (ptr == nullptr && size != 0) { 51 // Increment big image ref count to prevent system from entering uimg 52 // while big image memory is in use. 53 IslandVoteClientSingleton::get()->incrementBigImageRefCount(); 54 ptr = memoryAllocBigImage(size); 55 56 // Big image allocation failed too. 57 if (ptr == nullptr) { 58 IslandVoteClientSingleton::get()->decrementBigImageRefCount(); 59 } 60 } 61 62 return ptr; 63 #else 64 #error SLPI UIMG memory allocation not supported 65 #endif 66 #else 67 return malloc(size); 68 #endif // CHRE_SLPI_UIMG_ENABLED 69 } 70 memoryAllocBigImage(size_t size)71void *memoryAllocBigImage(size_t size) { 72 return malloc(size); 73 } 74 palSystemApiMemoryAlloc(size_t size)75void *palSystemApiMemoryAlloc(size_t size) { 76 return malloc(size); 77 } 78 memoryFree(void * pointer)79void memoryFree(void *pointer) { 80 #ifdef CHRE_SLPI_UIMG_ENABLED 81 #if defined(CHRE_SLPI_SMGR) 82 SNS_OS_FREE(pointer); 83 #elif defined(CHRE_SLPI_SEE) 84 if (sns_island_is_island_ptr(reinterpret_cast<intptr_t>(pointer))) { 85 sns_free(pointer); 86 } else { 87 memoryFreeBigImage(pointer); 88 89 // Must exclude nullptr as it's excluded in memoryAlloc() as well. 90 // Note currently sns_island_is_island_ptr returns true for nullptr, 91 // so this mainly serves as a protection in case the implementation of 92 // sns_island_is_island_ptr changes in the future. 93 if (pointer != nullptr) { 94 IslandVoteClientSingleton::get()->decrementBigImageRefCount(); 95 } 96 } 97 #else 98 #error SLPI UIMG memory free not supported 99 #endif 100 #else 101 free(pointer); 102 #endif // CHRE_SLPI_UIMG_ENABLED 103 } 104 memoryFreeBigImage(void * pointer)105void memoryFreeBigImage(void *pointer) { 106 free(pointer); 107 } 108 palSystemApiMemoryFree(void * pointer)109void palSystemApiMemoryFree(void *pointer) { 110 free(pointer); 111 } 112 113 } // namespace chre 114