1 /* 2 * Copyright (C) 2022 Rockchip Electronics Co., Ltd. 3 * Authors: 4 * Cerf Yu <cerf.yu@rock-chips.com> 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 __RGA_SAMPLES_ALLOCATOR_DMA_ALLOC_H__ 20 #define __RGA_SAMPLES_ALLOCATOR_DMA_ALLOC_H__ 21 22 #define DMA_HEAP_UNCACHE_PATH "/dev/dma_heap/system-uncached" 23 #define DMA_HEAP_PATH "/dev/dma_heap/system" 24 #define DMA_HEAP_DMA32_UNCACHE_PATCH "/dev/dma_heap/system-uncached-dma32" 25 #define DMA_HEAP_DMA32_PATCH "/dev/dma_heap/system-dma32" 26 #define CMA_HEAP_UNCACHE_PATH "/dev/dma_heap/cma-uncached" 27 #define RV1106_CMA_HEAP_PATH "/dev/rk_dma_heap/rk-dma-heap-cma" 28 29 int dma_sync_device_to_cpu(int fd); 30 int dma_sync_cpu_to_device(int fd); 31 32 int dma_buf_alloc(const char *path, size_t size, int *fd, void **va); 33 void dma_buf_free(size_t size, int *fd, void *va); 34 35 #endif /* #ifndef __RGA_SAMPLES_ALLOCATOR_DMA_ALLOC_H__ */ 36