1 /* 2 * hardware/exynos/ion.h 3 * 4 * Copyright 2018 Samsung Electronics Co., Ltd. 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 #ifndef __HARDWARE_EXYNOS_ION_H__ 20 #define __HARDWARE_EXYNOS_ION_H__ 21 22 #include <sys/types.h> 23 24 #define ION_EXYNOS_HEAP_ID_SYSTEM 0 25 #define ION_EXYNOS_HEAP_ID_CRYPTO 1 26 #define ION_EXYNOS_HEAP_ID_VIDEO_STREAM 3 27 #define ION_EXYNOS_HEAP_ID_VIDEO_FRAME 5 28 #define ION_EXYNOS_HEAP_ID_VIDEO_SCALER 6 29 #define ION_EXYNOS_HEAP_ID_GPU_CRC 8 30 #define ION_EXYNOS_HEAP_ID_GPU_BUFFER 9 31 #define ION_EXYNOS_HEAP_ID_CAMERA 10 32 #define ION_EXYNOS_HEAP_ID_SECURE_CAMERA 11 33 #define ION_EXYNOS_HEAP_ID_SENSOR_DIRECT 12 34 #define ION_EXYNOS_HEAP_ID_FA_TPU 15 35 #define ION_EXYNOS_HEAP_ID_FA_IMG 16 36 #define ION_EXYNOS_HEAP_ID_FA_RAWIMG 17 37 #define ION_EXYNOS_HEAP_ID_FA_PREV 18 38 #define ION_EXYNOS_HEAP_ID_FA_MODEL 19 39 40 #define EXYNOS_ION_HEAP_SYSTEM_MASK (1 << ION_EXYNOS_HEAP_ID_SYSTEM) 41 #define EXYNOS_ION_HEAP_CRYPTO_MASK (1 << ION_EXYNOS_HEAP_ID_CRYPTO) 42 #define EXYNOS_ION_HEAP_VIDEO_STREAM_MASK (1 << ION_EXYNOS_HEAP_ID_VIDEO_STREAM) 43 #define EXYNOS_ION_HEAP_VIDEO_FRAME_MASK (1 << ION_EXYNOS_HEAP_ID_VIDEO_FRAME) 44 #define EXYNOS_ION_HEAP_VIDEO_SCALER_MASK (1 << ION_EXYNOS_HEAP_ID_VIDEO_SCALER) 45 #define EXYNOS_ION_HEAP_GPU_CRC_MASK (1 << ION_EXYNOS_HEAP_ID_GPU_CRC) 46 #define EXYNOS_ION_HEAP_GPU_BUFFER_MASK (1 << ION_EXYNOS_HEAP_ID_GPU_BUFFER) 47 #define EXYNOS_ION_HEAP_CAMERA_MASK (1 << ION_EXYNOS_HEAP_ID_CAMERA) 48 #define EXYNOS_ION_HEAP_SECURE_CAMERA_MASK (1 << ION_EXYNOS_HEAP_ID_SECURE_CAMERA) 49 #define EXYNOS_ION_HEAP_SENSOR_DIRECT_MASK (1 << ION_EXYNOS_HEAP_ID_SENSOR_DIRECT) 50 #define EXYNOS_ION_HEAP_FA_TPU_MASK (1 << ION_EXYNOS_HEAP_ID_FA_TPU) 51 #define EXYNOS_ION_HEAP_FA_IMG_MASK (1 << ION_EXYNOS_HEAP_ID_FA_IMG) 52 #define EXYNOS_ION_HEAP_FA_RAWIMG_MASK (1 << ION_EXYNOS_HEAP_ID_FA_RAWIMG) 53 #define EXYNOS_ION_HEAP_FA_PREV_MASK (1 << ION_EXYNOS_HEAP_ID_FA_PREV) 54 #define EXYNOS_ION_HEAP_FA_MODEL_MASK (1 << ION_EXYNOS_HEAP_ID_FA_MODEL) 55 56 #define ION_EXYNOS_FLAG_PROTECTED (1 << 16) 57 58 #define ION_FLAG_CACHED 1 59 #define ION_FLAG_CACHED_NEEDS_SYNC 2 /* deprecated in the modern ion */ 60 #define ION_FLAG_NOZEROED 8 61 #define ION_FLAG_PROTECTED (16 | ION_EXYNOS_FLAG_PROTECTED) 62 #define ION_FLAG_SYNC_FORCE 32 63 #define ION_FLAG_MAY_HWRENDER 64 64 #define ION_FLAG_HW_EXTRA 128 65 66 __BEGIN_DECLS 67 68 int exynos_ion_open(void); 69 int exynos_ion_close(int fd); 70 int exynos_ion_alloc(int ion_fd, size_t len, 71 unsigned int heap_mask, unsigned int flags); 72 int exynos_ion_import_handle(int ion_fd, int fd, int* handle); 73 int exynos_ion_free_handle(int ion_fd, int handle); 74 int exynos_ion_sync_fd(int ion_fd, int fd); 75 int exynos_ion_sync_fd_partial(int ion_fd, int fd, off_t offset, size_t len); 76 77 const char *exynos_ion_get_heap_name(unsigned int legacy_heap_id); 78 79 int exynos_ion_sync_start(int ion_fd, int fd, int direction); 80 int exynos_ion_sync_end(int ion_fd, int fd, int direction); 81 82 __END_DECLS 83 84 #endif /* __HARDWARE_EXYNOS_ION_H__ */ 85