177     struct dma_heap_allocation_data data;  in dma_heap_alloc()  local
180     memset(&data, 0, sizeof(data));  in dma_heap_alloc()
181     data.len = len;  in dma_heap_alloc()
182     data.fd_flags = O_RDWR | O_CLOEXEC;  in dma_heap_alloc()
183     data.heap_flags = 0; // heap_flags should be set to 0  in dma_heap_alloc()
185     ret = ioctl(fd, DMA_HEAP_IOCTL_ALLOC, &data);  in dma_heap_alloc()
191     dma_heap_dbg_ioctl("ioctl alloc get fd %d\n", data.fd);  in dma_heap_alloc()
193     *dmabuf_fd = data.fd;  in dma_heap_alloc()
261 static MPP_RET os_allocator_dma_heap_import(void *ctx, MppBufferInfo *data)  in os_allocator_dma_heap_import()  argument
264     RK_S32 fd_ext = data->fd;  in os_allocator_dma_heap_import()
269     data->fd = mpp_dup(fd_ext);  in os_allocator_dma_heap_import()
270     data->ptr = NULL;  in os_allocator_dma_heap_import()
272     dma_heap_dbg_ops("dev %d import %3d -> %3d\n", p->device, fd_ext, data->fd);  in os_allocator_dma_heap_import()
274     mpp_assert(data->fd > 0);  in os_allocator_dma_heap_import()
279 static MPP_RET os_allocator_dma_heap_free(void *ctx, MppBufferInfo *data)  in os_allocator_dma_heap_free()  argument
292                      data->fd, data->size, data->ptr);  in os_allocator_dma_heap_free()
294     if (data->ptr) {  in os_allocator_dma_heap_free()
295         munmap(data->ptr, data->size);  in os_allocator_dma_heap_free()
296         data->ptr = NULL;  in os_allocator_dma_heap_free()
298     close(data->fd);  in os_allocator_dma_heap_free()
315 static MPP_RET os_allocator_dma_heap_mmap(void *ctx, MppBufferInfo *data)  in os_allocator_dma_heap_mmap()  argument
328     if (NULL == data->ptr) {  in os_allocator_dma_heap_mmap()
331         if (fcntl(data->fd, F_GETFL) & O_RDWR)  in os_allocator_dma_heap_mmap()
334         data->ptr = mmap(NULL, data->size, flags, MAP_SHARED, data->fd, 0);  in os_allocator_dma_heap_mmap()
335         if (data->ptr == MAP_FAILED) {  in os_allocator_dma_heap_mmap()
337             data->ptr = NULL;  in os_allocator_dma_heap_mmap()
342                          data->fd, data->ptr,  in os_allocator_dma_heap_mmap()