36         int fd = open("/dev/ion", O_RDWR);  in ion_open()  local
37         if (fd < 0)  in ion_open()
39         return fd;  in ion_open()
42 int ion_close(int fd)  in ion_close()  argument
44         return close(fd);  in ion_close()
47 static int ion_ioctl(int fd, int req, void *arg)  in ion_ioctl()  argument
49         int ret = ioctl(fd, req, arg);  in ion_ioctl()
58 int ion_alloc(int fd, size_t len, size_t align, unsigned int flags,  in ion_alloc()  argument
68         ret = ion_ioctl(fd, ION_IOC_ALLOC, &data);  in ion_alloc()
75 int ion_alloc_tiler(int fd, size_t w, size_t h, int fmt, unsigned int flags,  in ion_alloc_tiler()  argument
91         ret = ion_ioctl(fd, ION_IOC_CUSTOM, &custom_data);  in ion_alloc_tiler()
99 int ion_free(int fd, struct ion_handle *handle)  in ion_free()  argument
104         return ion_ioctl(fd, ION_IOC_FREE, &data);  in ion_free()
107 int ion_map(int fd, struct ion_handle *handle, size_t length, int prot,  in ion_map()  argument
113         int ret = ion_ioctl(fd, ION_IOC_MAP, &data);  in ion_map()
116         *map_fd = data.fd;  in ion_map()
129 int ion_share(int fd, struct ion_handle *handle, int *share_fd)  in ion_share()  argument
135         int ret = ion_ioctl(fd, ION_IOC_SHARE, &data);  in ion_share()
138         *share_fd = data.fd;  in ion_share()
146 int ion_import(int fd, int share_fd, struct ion_handle **handle)  in ion_import()  argument
149                 .fd = share_fd,  in ion_import()
151         int ret = ion_ioctl(fd, ION_IOC_IMPORT, &data);  in ion_import()