31 static void tpm2_flush_sessions(struct tpm_chip *chip, struct tpm_space *space)  in tpm2_flush_sessions()  argument
35 	for (i = 0; i < ARRAY_SIZE(space->session_tbl); i++) {  in tpm2_flush_sessions()
36 		if (space->session_tbl[i])  in tpm2_flush_sessions()
37 			tpm2_flush_context(chip, space->session_tbl[i]);  in tpm2_flush_sessions()
41 int tpm2_init_space(struct tpm_space *space, unsigned int buf_size)  in tpm2_init_space()  argument
43 	space->context_buf = kzalloc(buf_size, GFP_KERNEL);  in tpm2_init_space()
44 	if (!space->context_buf)  in tpm2_init_space()
47 	space->session_buf = kzalloc(buf_size, GFP_KERNEL);  in tpm2_init_space()
48 	if (space->session_buf == NULL) {  in tpm2_init_space()
49 		kfree(space->context_buf);  in tpm2_init_space()
51 		space->context_buf = NULL;  in tpm2_init_space()
55 	space->buf_size = buf_size;  in tpm2_init_space()
59 void tpm2_del_space(struct tpm_chip *chip, struct tpm_space *space)  in tpm2_del_space()  argument
63 		tpm2_flush_sessions(chip, space);  in tpm2_del_space()
67 	kfree(space->context_buf);  in tpm2_del_space()
68 	kfree(space->session_buf);  in tpm2_del_space()
100 		 * and loaded outside the space.  in tpm2_load_context()
103 		 * flushed outside the space  in tpm2_load_context()
166 	struct tpm_space *space = &chip->work_space;  in tpm2_flush_space()  local
169 	for (i = 0; i < ARRAY_SIZE(space->context_tbl); i++)  in tpm2_flush_space()
170 		if (space->context_tbl[i] && ~space->context_tbl[i])  in tpm2_flush_space()
171 			tpm2_flush_context(chip, space->context_tbl[i]);  in tpm2_flush_space()
173 	tpm2_flush_sessions(chip, space);  in tpm2_flush_space()
178 	struct tpm_space *space = &chip->work_space;  in tpm2_load_space()  local
183 	for (i = 0, offset = 0; i < ARRAY_SIZE(space->context_tbl); i++) {  in tpm2_load_space()
184 		if (!space->context_tbl[i])  in tpm2_load_space()
188 		if (~space->context_tbl[i]) {  in tpm2_load_space()
193 		rc = tpm2_load_context(chip, space->context_buf, &offset,  in tpm2_load_space()
194 				       &space->context_tbl[i]);  in tpm2_load_space()
199 	for (i = 0, offset = 0; i < ARRAY_SIZE(space->session_tbl); i++) {  in tpm2_load_space()
202 		if (!space->session_tbl[i])  in tpm2_load_space()
205 		rc = tpm2_load_context(chip, space->session_buf,  in tpm2_load_space()
209 			space->session_tbl[i] = 0;  in tpm2_load_space()
214 		if (handle != space->session_tbl[i]) {  in tpm2_load_space()
224 static bool tpm2_map_to_phandle(struct tpm_space *space, void *handle)  in tpm2_map_to_phandle()  argument
231 	if (i >= ARRAY_SIZE(space->context_tbl) || !space->context_tbl[i])  in tpm2_map_to_phandle()
234 	phandle = space->context_tbl[i];  in tpm2_map_to_phandle()
241 	struct tpm_space *space = &chip->work_space;  in tpm2_map_command()  local
257 			if (!tpm2_map_to_phandle(space, handle))  in tpm2_map_command()
266 				    struct tpm_space *space,  in tpm_find_and_validate_cc()  argument
300 int tpm2_prepare_space(struct tpm_chip *chip, struct tpm_space *space, u8 *cmd,  in tpm2_prepare_space()  argument
306 	if (!space)  in tpm2_prepare_space()
309 	cc = tpm_find_and_validate_cc(chip, space, cmd, cmdsiz);  in tpm2_prepare_space()
313 	memcpy(&chip->work_space.context_tbl, &space->context_tbl,  in tpm2_prepare_space()
314 	       sizeof(space->context_tbl));  in tpm2_prepare_space()
315 	memcpy(&chip->work_space.session_tbl, &space->session_tbl,  in tpm2_prepare_space()
316 	       sizeof(space->session_tbl));  in tpm2_prepare_space()
317 	memcpy(chip->work_space.context_buf, space->context_buf,  in tpm2_prepare_space()
318 	       space->buf_size);  in tpm2_prepare_space()
319 	memcpy(chip->work_space.session_buf, space->session_buf,  in tpm2_prepare_space()
320 	       space->buf_size);  in tpm2_prepare_space()
340 	struct tpm_space *space = &chip->work_space;  in tpm2_add_session()  local
343 	for (i = 0; i < ARRAY_SIZE(space->session_tbl); i++)  in tpm2_add_session()
344 		if (space->session_tbl[i] == 0)  in tpm2_add_session()
347 	if (i == ARRAY_SIZE(space->session_tbl))  in tpm2_add_session()
350 	space->session_tbl[i] = handle;  in tpm2_add_session()
354 static u32 tpm2_map_to_vhandle(struct tpm_space *space, u32 phandle, bool alloc)  in tpm2_map_to_vhandle()  argument
358 	for (i = 0; i < ARRAY_SIZE(space->context_tbl); i++) {  in tpm2_map_to_vhandle()
360 			if (!space->context_tbl[i]) {  in tpm2_map_to_vhandle()
361 				space->context_tbl[i] = phandle;  in tpm2_map_to_vhandle()
364 		} else if (space->context_tbl[i] == phandle)  in tpm2_map_to_vhandle()
368 	if (i == ARRAY_SIZE(space->context_tbl))  in tpm2_map_to_vhandle()
377 	struct tpm_space *space = &chip->work_space;  in tpm2_map_response_header()  local
402 		vhandle = tpm2_map_to_vhandle(space, phandle, true);  in tpm2_map_response_header()
437 	struct tpm_space *space = &chip->work_space;  in tpm2_map_response_body()  local
470 			vhandle = tpm2_map_to_vhandle(space, phandle, false);  in tpm2_map_response_body()
493 	struct tpm_space *space = &chip->work_space;  in tpm2_save_space()  local
498 	for (i = 0, offset = 0; i < ARRAY_SIZE(space->context_tbl); i++) {  in tpm2_save_space()
499 		if (!(space->context_tbl[i] && ~space->context_tbl[i]))  in tpm2_save_space()
502 		rc = tpm2_save_context(chip, space->context_tbl[i],  in tpm2_save_space()
503 				       space->context_buf, space->buf_size,  in tpm2_save_space()
506 			space->context_tbl[i] = 0;  in tpm2_save_space()
511 		tpm2_flush_context(chip, space->context_tbl[i]);  in tpm2_save_space()
512 		space->context_tbl[i] = ~0;  in tpm2_save_space()
515 	for (i = 0, offset = 0; i < ARRAY_SIZE(space->session_tbl); i++) {  in tpm2_save_space()
516 		if (!space->session_tbl[i])  in tpm2_save_space()
519 		rc = tpm2_save_context(chip, space->session_tbl[i],  in tpm2_save_space()
520 				       space->session_buf, space->buf_size,  in tpm2_save_space()
524 			space->session_tbl[i] = 0;  in tpm2_save_space()
534 int tpm2_commit_space(struct tpm_chip *chip, struct tpm_space *space,  in tpm2_commit_space()  argument
540 	if (!space)  in tpm2_commit_space()
563 	memcpy(&space->context_tbl, &chip->work_space.context_tbl,  in tpm2_commit_space()
564 	       sizeof(space->context_tbl));  in tpm2_commit_space()
565 	memcpy(&space->session_tbl, &chip->work_space.session_tbl,  in tpm2_commit_space()
566 	       sizeof(space->session_tbl));  in tpm2_commit_space()
567 	memcpy(space->context_buf, chip->work_space.context_buf,  in tpm2_commit_space()
568 	       space->buf_size);  in tpm2_commit_space()
569 	memcpy(space->session_buf, chip->work_space.session_buf,  in tpm2_commit_space()
570 	       space->buf_size);  in tpm2_commit_space()