30     RK_U32 fd;  member
61     RK_S32      fd;  member
80     int fd;  in try_open_path()  local
83     fd = open(buf, O_RDONLY | O_CLOEXEC); // read permission is enough  in try_open_path()
85     dma_heap_dbg_ops("open dma_heap %-24s -> fd %d\n", name, fd);  in try_open_path()
87     return fd;  in try_open_path()
102     if (src->fd > 0) {  in try_flip_flag()
104         dst->fd = mpp_dup(src->fd);  in try_flip_flag()
111     return dst->fd > 0 ? MPP_OK : MPP_NOK;  in try_flip_flag()
127         if (info->fd > 0)  in dma_heap_init()
130         info->fd = try_open_path(info->name);  in dma_heap_init()
131         if (info->fd <= 0)  in dma_heap_init()
140             if (info->fd > 0)  in dma_heap_init()
168         if (info->fd > 0) {  in dma_heap_deinit()
169             close(info->fd);  in dma_heap_deinit()
170             info->fd = -1;  in dma_heap_deinit()
175 static int dma_heap_alloc(int fd, size_t len, RK_S32 *dmabuf_fd, RK_U32 flags)  in dma_heap_alloc()  argument
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()
215     if (info->fd <= 0) {  in os_allocator_dma_heap_open()
227         p->device       = info->fd;  in os_allocator_dma_heap_open()
248     ret = dma_heap_alloc(p->device, info->size, (RK_S32 *)&info->fd, p->flags);  in os_allocator_dma_heap_alloc()
250     dma_heap_dbg_ops("dev %d alloc %3d size %d\n", p->device, info->fd, info->size);  in os_allocator_dma_heap_alloc()
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()
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()
292                      data->fd, data->size, data->ptr);  in os_allocator_dma_heap_free()
298     close(data->fd);  in os_allocator_dma_heap_free()
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()
342                          data->fd, data->ptr,  in os_allocator_dma_heap_mmap()