19c92ab61SThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */
24fb0a5ebSJens Wiklander /*
34602c584SJens Wiklander * Copyright (c) 2015-2021, Linaro Limited
44fb0a5ebSJens Wiklander */
54fb0a5ebSJens Wiklander
64fb0a5ebSJens Wiklander #ifndef OPTEE_PRIVATE_H
74fb0a5ebSJens Wiklander #define OPTEE_PRIVATE_H
84fb0a5ebSJens Wiklander
94fb0a5ebSJens Wiklander #include <linux/arm-smccc.h>
104615e5a3SJens Wiklander #include <linux/rhashtable.h>
114fb0a5ebSJens Wiklander #include <linux/semaphore.h>
124fb0a5ebSJens Wiklander #include <linux/tee_drv.h>
134fb0a5ebSJens Wiklander #include <linux/types.h>
144fb0a5ebSJens Wiklander #include "optee_msg.h"
154fb0a5ebSJens Wiklander
16c51a564aSJens Wiklander #define DRIVER_NAME "optee"
17c51a564aSJens Wiklander
184fb0a5ebSJens Wiklander #define OPTEE_MAX_ARG_SIZE 1024
194fb0a5ebSJens Wiklander
204fb0a5ebSJens Wiklander /* Some Global Platform error codes used in this driver */
214fb0a5ebSJens Wiklander #define TEEC_SUCCESS 0x00000000
224fb0a5ebSJens Wiklander #define TEEC_ERROR_BAD_PARAMETERS 0xFFFF0006
23c05210abSJorge Ramirez-Ortiz #define TEEC_ERROR_NOT_SUPPORTED 0xFFFF000A
244fb0a5ebSJens Wiklander #define TEEC_ERROR_COMMUNICATION 0xFFFF000E
254fb0a5ebSJens Wiklander #define TEEC_ERROR_OUT_OF_MEMORY 0xFFFF000C
264615e5a3SJens Wiklander #define TEEC_ERROR_BUSY 0xFFFF000D
27c3fa24afSSumit Garg #define TEEC_ERROR_SHORT_BUFFER 0xFFFF0010
284fb0a5ebSJens Wiklander
294fb0a5ebSJens Wiklander #define TEEC_ORIGIN_COMMS 0x00000002
304fb0a5ebSJens Wiklander
31787c80ccSJens Wiklander /*
32787c80ccSJens Wiklander * This value should be larger than the number threads in secure world to
33787c80ccSJens Wiklander * meet the need from secure world. The number of threads in secure world
34787c80ccSJens Wiklander * are usually not even close to 255 so we should be safe for now.
35787c80ccSJens Wiklander */
36787c80ccSJens Wiklander #define OPTEE_DEFAULT_MAX_NOTIF_VALUE 255
37787c80ccSJens Wiklander
384fb0a5ebSJens Wiklander typedef void (optee_invoke_fn)(unsigned long, unsigned long, unsigned long,
394fb0a5ebSJens Wiklander unsigned long, unsigned long, unsigned long,
404fb0a5ebSJens Wiklander unsigned long, unsigned long,
414fb0a5ebSJens Wiklander struct arm_smccc_res *);
424fb0a5ebSJens Wiklander
43c51a564aSJens Wiklander struct optee_call_waiter {
44c51a564aSJens Wiklander struct list_head list_node;
45c51a564aSJens Wiklander struct completion c;
46c51a564aSJens Wiklander };
47c51a564aSJens Wiklander
484fb0a5ebSJens Wiklander struct optee_call_queue {
494fb0a5ebSJens Wiklander /* Serializes access to this struct */
504fb0a5ebSJens Wiklander struct mutex mutex;
514fb0a5ebSJens Wiklander struct list_head waiters;
524fb0a5ebSJens Wiklander };
534fb0a5ebSJens Wiklander
54787c80ccSJens Wiklander struct optee_notif {
55787c80ccSJens Wiklander u_int max_key;
56787c80ccSJens Wiklander /* Serializes access to the elements below in this struct */
57787c80ccSJens Wiklander spinlock_t lock;
584fb0a5ebSJens Wiklander struct list_head db;
59787c80ccSJens Wiklander u_long *bitmap;
604fb0a5ebSJens Wiklander };
614fb0a5ebSJens Wiklander
625b4018b9SJens Wiklander #define OPTEE_SHM_ARG_ALLOC_PRIV BIT(0)
635b4018b9SJens Wiklander #define OPTEE_SHM_ARG_SHARED BIT(1)
645b4018b9SJens Wiklander struct optee_shm_arg_entry;
655b4018b9SJens Wiklander struct optee_shm_arg_cache {
665b4018b9SJens Wiklander u32 flags;
675b4018b9SJens Wiklander /* Serializes access to this struct */
685b4018b9SJens Wiklander struct mutex mutex;
695b4018b9SJens Wiklander struct list_head shm_args;
705b4018b9SJens Wiklander };
715b4018b9SJens Wiklander
724fb0a5ebSJens Wiklander /**
734fb0a5ebSJens Wiklander * struct optee_supp - supplicant synchronization struct
744fb0a5ebSJens Wiklander * @ctx the context of current connected supplicant.
754fb0a5ebSJens Wiklander * if !NULL the supplicant device is available for use,
764fb0a5ebSJens Wiklander * else busy
771647a5acSJens Wiklander * @mutex: held while accessing content of this struct
781647a5acSJens Wiklander * @req_id: current request id if supplicant is doing synchronous
791647a5acSJens Wiklander * communication, else -1
801647a5acSJens Wiklander * @reqs: queued request not yet retrieved by supplicant
811647a5acSJens Wiklander * @idr: IDR holding all requests currently being processed
821647a5acSJens Wiklander * by supplicant
831647a5acSJens Wiklander * @reqs_c: completion used by supplicant when waiting for a
841647a5acSJens Wiklander * request to be queued.
854fb0a5ebSJens Wiklander */
864fb0a5ebSJens Wiklander struct optee_supp {
871647a5acSJens Wiklander /* Serializes access to this struct */
881647a5acSJens Wiklander struct mutex mutex;
894fb0a5ebSJens Wiklander struct tee_context *ctx;
904fb0a5ebSJens Wiklander
911647a5acSJens Wiklander int req_id;
921647a5acSJens Wiklander struct list_head reqs;
931647a5acSJens Wiklander struct idr idr;
941647a5acSJens Wiklander struct completion reqs_c;
954fb0a5ebSJens Wiklander };
964fb0a5ebSJens Wiklander
97*b3b4ced1SEtienne Carriere /*
98*b3b4ced1SEtienne Carriere * struct optee_pcpu - per cpu notif private struct passed to work functions
99*b3b4ced1SEtienne Carriere * @optee optee device reference
100*b3b4ced1SEtienne Carriere */
101*b3b4ced1SEtienne Carriere struct optee_pcpu {
102*b3b4ced1SEtienne Carriere struct optee *optee;
103*b3b4ced1SEtienne Carriere };
104*b3b4ced1SEtienne Carriere
105*b3b4ced1SEtienne Carriere /*
106*b3b4ced1SEtienne Carriere * struct optee_smc - optee smc communication struct
107*b3b4ced1SEtienne Carriere * @invoke_fn handler function to invoke secure monitor
108*b3b4ced1SEtienne Carriere * @memremaped_shm virtual address of memory in shared memory pool
109*b3b4ced1SEtienne Carriere * @sec_caps: secure world capabilities defined by
110*b3b4ced1SEtienne Carriere * OPTEE_SMC_SEC_CAP_* in optee_smc.h
111*b3b4ced1SEtienne Carriere * @notif_irq interrupt used as async notification by OP-TEE or 0
112*b3b4ced1SEtienne Carriere * @optee_pcpu per_cpu optee instance for per cpu work or NULL
113*b3b4ced1SEtienne Carriere * @notif_pcpu_wq workqueue for per cpu asynchronous notification or NULL
114*b3b4ced1SEtienne Carriere * @notif_pcpu_work work for per cpu asynchronous notification
115*b3b4ced1SEtienne Carriere * @notif_cpuhp_state CPU hotplug state assigned for pcpu interrupt management
116*b3b4ced1SEtienne Carriere */
117c51a564aSJens Wiklander struct optee_smc {
118c51a564aSJens Wiklander optee_invoke_fn *invoke_fn;
119c51a564aSJens Wiklander void *memremaped_shm;
120c51a564aSJens Wiklander u32 sec_caps;
1216749e69cSJens Wiklander unsigned int notif_irq;
122*b3b4ced1SEtienne Carriere struct optee_pcpu __percpu *optee_pcpu;
123*b3b4ced1SEtienne Carriere struct workqueue_struct *notif_pcpu_wq;
124*b3b4ced1SEtienne Carriere struct work_struct notif_pcpu_work;
125*b3b4ced1SEtienne Carriere unsigned int notif_cpuhp_state;
126c51a564aSJens Wiklander };
127c51a564aSJens Wiklander
1284615e5a3SJens Wiklander /**
1294615e5a3SJens Wiklander * struct optee_ffa_data - FFA communication struct
1304615e5a3SJens Wiklander * @ffa_dev FFA device, contains the destination id, the id of
1314615e5a3SJens Wiklander * OP-TEE in secure world
1324615e5a3SJens Wiklander * @ffa_ops FFA operations
1334615e5a3SJens Wiklander * @mutex Serializes access to @global_ids
1344615e5a3SJens Wiklander * @global_ids FF-A shared memory global handle translation
1354615e5a3SJens Wiklander */
1364615e5a3SJens Wiklander struct optee_ffa {
1374615e5a3SJens Wiklander struct ffa_device *ffa_dev;
1384615e5a3SJens Wiklander /* Serializes access to @global_ids */
1394615e5a3SJens Wiklander struct mutex mutex;
1404615e5a3SJens Wiklander struct rhashtable global_ids;
1414615e5a3SJens Wiklander };
1424615e5a3SJens Wiklander
1434602c584SJens Wiklander struct optee;
1444602c584SJens Wiklander
1454602c584SJens Wiklander /**
1464602c584SJens Wiklander * struct optee_ops - OP-TEE driver internal operations
1474602c584SJens Wiklander * @do_call_with_arg: enters OP-TEE in secure world
1484602c584SJens Wiklander * @to_msg_param: converts from struct tee_param to OPTEE_MSG parameters
1494602c584SJens Wiklander * @from_msg_param: converts from OPTEE_MSG parameters to struct tee_param
1504602c584SJens Wiklander *
1514602c584SJens Wiklander * These OPs are only supposed to be used internally in the OP-TEE driver
1524602c584SJens Wiklander * as a way of abstracting the different methogs of entering OP-TEE in
1534602c584SJens Wiklander * secure world.
1544602c584SJens Wiklander */
1554602c584SJens Wiklander struct optee_ops {
1564602c584SJens Wiklander int (*do_call_with_arg)(struct tee_context *ctx,
1575b4018b9SJens Wiklander struct tee_shm *shm_arg, u_int offs);
1584602c584SJens Wiklander int (*to_msg_param)(struct optee *optee,
1594602c584SJens Wiklander struct optee_msg_param *msg_params,
1604602c584SJens Wiklander size_t num_params, const struct tee_param *params);
1614602c584SJens Wiklander int (*from_msg_param)(struct optee *optee, struct tee_param *params,
1624602c584SJens Wiklander size_t num_params,
1634602c584SJens Wiklander const struct optee_msg_param *msg_params);
1644602c584SJens Wiklander };
1654602c584SJens Wiklander
1664fb0a5ebSJens Wiklander /**
1674fb0a5ebSJens Wiklander * struct optee - main service struct
1684fb0a5ebSJens Wiklander * @supp_teedev: supplicant device
169aceeafefSJens Wiklander * @teedev: client device
1704602c584SJens Wiklander * @ops: internal callbacks for different ways to reach secure
1714602c584SJens Wiklander * world
172aceeafefSJens Wiklander * @ctx: driver internal TEE context
173c51a564aSJens Wiklander * @smc: specific to SMC ABI
1744615e5a3SJens Wiklander * @ffa: specific to FF-A ABI
1754fb0a5ebSJens Wiklander * @call_queue: queue of threads waiting to call @invoke_fn
176787c80ccSJens Wiklander * @notif: notification synchronization struct
1774fb0a5ebSJens Wiklander * @supp: supplicant synchronization struct for RPC to supplicant
1784fb0a5ebSJens Wiklander * @pool: shared memory pool
17930c375a7SJens Wiklander * @rpc_param_count: If > 0 number of RPC parameters to make room for
1805f178bb7SMaxim Uvarov * @scan_bus_done flag if device registation was already done.
1815f178bb7SMaxim Uvarov * @scan_bus_wq workqueue to scan optee bus and register optee drivers
1825f178bb7SMaxim Uvarov * @scan_bus_work workq to scan optee bus and register optee drivers
1834fb0a5ebSJens Wiklander */
1844fb0a5ebSJens Wiklander struct optee {
1854fb0a5ebSJens Wiklander struct tee_device *supp_teedev;
1864fb0a5ebSJens Wiklander struct tee_device *teedev;
1874602c584SJens Wiklander const struct optee_ops *ops;
188aceeafefSJens Wiklander struct tee_context *ctx;
1894615e5a3SJens Wiklander union {
190c51a564aSJens Wiklander struct optee_smc smc;
1914615e5a3SJens Wiklander struct optee_ffa ffa;
1924615e5a3SJens Wiklander };
1935b4018b9SJens Wiklander struct optee_shm_arg_cache shm_arg_cache;
1944fb0a5ebSJens Wiklander struct optee_call_queue call_queue;
195787c80ccSJens Wiklander struct optee_notif notif;
1964fb0a5ebSJens Wiklander struct optee_supp supp;
1974fb0a5ebSJens Wiklander struct tee_shm_pool *pool;
19830c375a7SJens Wiklander unsigned int rpc_param_count;
1995f178bb7SMaxim Uvarov bool scan_bus_done;
2005f178bb7SMaxim Uvarov struct workqueue_struct *scan_bus_wq;
2015f178bb7SMaxim Uvarov struct work_struct scan_bus_work;
2024fb0a5ebSJens Wiklander };
2034fb0a5ebSJens Wiklander
2044fb0a5ebSJens Wiklander struct optee_session {
2054fb0a5ebSJens Wiklander struct list_head list_node;
2064fb0a5ebSJens Wiklander u32 session_id;
2074fb0a5ebSJens Wiklander };
2084fb0a5ebSJens Wiklander
2094fb0a5ebSJens Wiklander struct optee_context_data {
2104fb0a5ebSJens Wiklander /* Serializes access to this struct */
2114fb0a5ebSJens Wiklander struct mutex mutex;
2124fb0a5ebSJens Wiklander struct list_head sess_list;
2134fb0a5ebSJens Wiklander };
2144fb0a5ebSJens Wiklander
2154fb0a5ebSJens Wiklander struct optee_rpc_param {
2164fb0a5ebSJens Wiklander u32 a0;
2174fb0a5ebSJens Wiklander u32 a1;
2184fb0a5ebSJens Wiklander u32 a2;
2194fb0a5ebSJens Wiklander u32 a3;
2204fb0a5ebSJens Wiklander u32 a4;
2214fb0a5ebSJens Wiklander u32 a5;
2224fb0a5ebSJens Wiklander u32 a6;
2234fb0a5ebSJens Wiklander u32 a7;
2244fb0a5ebSJens Wiklander };
2254fb0a5ebSJens Wiklander
22653a107c8SVolodymyr Babchuk /* Holds context that is preserved during one STD call */
22753a107c8SVolodymyr Babchuk struct optee_call_ctx {
22853a107c8SVolodymyr Babchuk /* information about pages list used in last allocation */
22953a107c8SVolodymyr Babchuk void *pages_list;
23053a107c8SVolodymyr Babchuk size_t num_entries;
23153a107c8SVolodymyr Babchuk };
23253a107c8SVolodymyr Babchuk
233787c80ccSJens Wiklander int optee_notif_init(struct optee *optee, u_int max_key);
234787c80ccSJens Wiklander void optee_notif_uninit(struct optee *optee);
235787c80ccSJens Wiklander int optee_notif_wait(struct optee *optee, u_int key);
236787c80ccSJens Wiklander int optee_notif_send(struct optee *optee, u_int key);
2374fb0a5ebSJens Wiklander
2384fb0a5ebSJens Wiklander u32 optee_supp_thrd_req(struct tee_context *ctx, u32 func, size_t num_params,
2394fb0a5ebSJens Wiklander struct tee_param *param);
2404fb0a5ebSJens Wiklander
2414fb0a5ebSJens Wiklander void optee_supp_init(struct optee_supp *supp);
2424fb0a5ebSJens Wiklander void optee_supp_uninit(struct optee_supp *supp);
2431647a5acSJens Wiklander void optee_supp_release(struct optee_supp *supp);
2444fb0a5ebSJens Wiklander
2454fb0a5ebSJens Wiklander int optee_supp_recv(struct tee_context *ctx, u32 *func, u32 *num_params,
2464fb0a5ebSJens Wiklander struct tee_param *param);
2474fb0a5ebSJens Wiklander int optee_supp_send(struct tee_context *ctx, u32 ret, u32 num_params,
2484fb0a5ebSJens Wiklander struct tee_param *param);
2494fb0a5ebSJens Wiklander
2504fb0a5ebSJens Wiklander int optee_open_session(struct tee_context *ctx,
2514fb0a5ebSJens Wiklander struct tee_ioctl_open_session_arg *arg,
2524fb0a5ebSJens Wiklander struct tee_param *param);
253c0ab6db3SJens Wiklander int optee_close_session_helper(struct tee_context *ctx, u32 session);
2544fb0a5ebSJens Wiklander int optee_close_session(struct tee_context *ctx, u32 session);
2554fb0a5ebSJens Wiklander int optee_invoke_func(struct tee_context *ctx, struct tee_ioctl_invoke_arg *arg,
2564fb0a5ebSJens Wiklander struct tee_param *param);
2574fb0a5ebSJens Wiklander int optee_cancel_req(struct tee_context *ctx, u32 cancel_id, u32 session);
2584fb0a5ebSJens Wiklander
2595f178bb7SMaxim Uvarov #define PTA_CMD_GET_DEVICES 0x0
2605f178bb7SMaxim Uvarov #define PTA_CMD_GET_DEVICES_SUPP 0x1
2615f178bb7SMaxim Uvarov int optee_enumerate_devices(u32 func);
2627f565d0eSSumit Garg void optee_unregister_devices(void);
263c3fa24afSSumit Garg
264d88e0493SJens Wiklander int optee_pool_op_alloc_helper(struct tee_shm_pool *pool, struct tee_shm *shm,
265d88e0493SJens Wiklander size_t size, size_t align,
266c51a564aSJens Wiklander int (*shm_register)(struct tee_context *ctx,
267c51a564aSJens Wiklander struct tee_shm *shm,
268c51a564aSJens Wiklander struct page **pages,
269c51a564aSJens Wiklander size_t num_pages,
270c51a564aSJens Wiklander unsigned long start));
271924e3226SJens Wiklander void optee_pool_op_free_helper(struct tee_shm_pool *pool, struct tee_shm *shm,
272924e3226SJens Wiklander int (*shm_unregister)(struct tee_context *ctx,
273924e3226SJens Wiklander struct tee_shm *shm));
274c51a564aSJens Wiklander
275c51a564aSJens Wiklander
276c51a564aSJens Wiklander void optee_remove_common(struct optee *optee);
277c51a564aSJens Wiklander int optee_open(struct tee_context *ctx, bool cap_memref_null);
278c51a564aSJens Wiklander void optee_release(struct tee_context *ctx);
279c51a564aSJens Wiklander void optee_release_supp(struct tee_context *ctx);
280c51a564aSJens Wiklander
optee_from_msg_param_value(struct tee_param * p,u32 attr,const struct optee_msg_param * mp)281c51a564aSJens Wiklander static inline void optee_from_msg_param_value(struct tee_param *p, u32 attr,
282c51a564aSJens Wiklander const struct optee_msg_param *mp)
283c51a564aSJens Wiklander {
284c51a564aSJens Wiklander p->attr = TEE_IOCTL_PARAM_ATTR_TYPE_VALUE_INPUT +
285c51a564aSJens Wiklander attr - OPTEE_MSG_ATTR_TYPE_VALUE_INPUT;
286c51a564aSJens Wiklander p->u.value.a = mp->u.value.a;
287c51a564aSJens Wiklander p->u.value.b = mp->u.value.b;
288c51a564aSJens Wiklander p->u.value.c = mp->u.value.c;
289c51a564aSJens Wiklander }
290c51a564aSJens Wiklander
optee_to_msg_param_value(struct optee_msg_param * mp,const struct tee_param * p)291c51a564aSJens Wiklander static inline void optee_to_msg_param_value(struct optee_msg_param *mp,
292c51a564aSJens Wiklander const struct tee_param *p)
293c51a564aSJens Wiklander {
294c51a564aSJens Wiklander mp->attr = OPTEE_MSG_ATTR_TYPE_VALUE_INPUT + p->attr -
295c51a564aSJens Wiklander TEE_IOCTL_PARAM_ATTR_TYPE_VALUE_INPUT;
296c51a564aSJens Wiklander mp->u.value.a = p->u.value.a;
297c51a564aSJens Wiklander mp->u.value.b = p->u.value.b;
298c51a564aSJens Wiklander mp->u.value.c = p->u.value.c;
299c51a564aSJens Wiklander }
300c51a564aSJens Wiklander
301c51a564aSJens Wiklander void optee_cq_wait_init(struct optee_call_queue *cq,
302c51a564aSJens Wiklander struct optee_call_waiter *w);
303c51a564aSJens Wiklander void optee_cq_wait_for_completion(struct optee_call_queue *cq,
304c51a564aSJens Wiklander struct optee_call_waiter *w);
305c51a564aSJens Wiklander void optee_cq_wait_final(struct optee_call_queue *cq,
306c51a564aSJens Wiklander struct optee_call_waiter *w);
307c51a564aSJens Wiklander int optee_check_mem_type(unsigned long start, size_t num_pages);
3085b4018b9SJens Wiklander
3095b4018b9SJens Wiklander void optee_shm_arg_cache_init(struct optee *optee, u32 flags);
3105b4018b9SJens Wiklander void optee_shm_arg_cache_uninit(struct optee *optee);
3115b4018b9SJens Wiklander struct optee_msg_arg *optee_get_msg_arg(struct tee_context *ctx,
3125b4018b9SJens Wiklander size_t num_params,
3135b4018b9SJens Wiklander struct optee_shm_arg_entry **entry,
3145b4018b9SJens Wiklander struct tee_shm **shm_ret,
3155b4018b9SJens Wiklander u_int *offs);
3165b4018b9SJens Wiklander void optee_free_msg_arg(struct tee_context *ctx,
3175b4018b9SJens Wiklander struct optee_shm_arg_entry *entry, u_int offs);
3185b4018b9SJens Wiklander size_t optee_msg_arg_size(size_t rpc_param_count);
3195b4018b9SJens Wiklander
320c51a564aSJens Wiklander
321c51a564aSJens Wiklander struct tee_shm *optee_rpc_cmd_alloc_suppl(struct tee_context *ctx, size_t sz);
322c51a564aSJens Wiklander void optee_rpc_cmd_free_suppl(struct tee_context *ctx, struct tee_shm *shm);
323c51a564aSJens Wiklander void optee_rpc_cmd(struct tee_context *ctx, struct optee *optee,
324c51a564aSJens Wiklander struct optee_msg_arg *arg);
325c51a564aSJens Wiklander
3264fb0a5ebSJens Wiklander /*
3274fb0a5ebSJens Wiklander * Small helpers
3284fb0a5ebSJens Wiklander */
3294fb0a5ebSJens Wiklander
reg_pair_to_ptr(u32 reg0,u32 reg1)3304fb0a5ebSJens Wiklander static inline void *reg_pair_to_ptr(u32 reg0, u32 reg1)
3314fb0a5ebSJens Wiklander {
3324fb0a5ebSJens Wiklander return (void *)(unsigned long)(((u64)reg0 << 32) | reg1);
3334fb0a5ebSJens Wiklander }
3344fb0a5ebSJens Wiklander
reg_pair_from_64(u32 * reg0,u32 * reg1,u64 val)3354fb0a5ebSJens Wiklander static inline void reg_pair_from_64(u32 *reg0, u32 *reg1, u64 val)
3364fb0a5ebSJens Wiklander {
3374fb0a5ebSJens Wiklander *reg0 = val >> 32;
3384fb0a5ebSJens Wiklander *reg1 = val;
3394fb0a5ebSJens Wiklander }
3404fb0a5ebSJens Wiklander
341c51a564aSJens Wiklander /* Registration of the ABIs */
342c51a564aSJens Wiklander int optee_smc_abi_register(void);
343c51a564aSJens Wiklander void optee_smc_abi_unregister(void);
3444615e5a3SJens Wiklander int optee_ffa_abi_register(void);
3454615e5a3SJens Wiklander void optee_ffa_abi_unregister(void);
346c51a564aSJens Wiklander
3474fb0a5ebSJens Wiklander #endif /*OPTEE_PRIVATE_H*/
348