1 /* SPDX-License-Identifier: GPL-2.0 */
40  * Function codes for the KM (CIPHER MESSAGE) instruction
58  * Function codes for the KMC (CIPHER MESSAGE WITH CHAINING)
74  * Function codes for the KMCTR (CIPHER MESSAGE WITH COUNTER)
89  * Function codes for the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST)
103  * Function codes for the KLMD (COMPUTE LAST MESSAGE DIGEST)
116  * function codes for the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE)
125  * Function codes for the PCKMO (PERFORM CRYPTOGRAPHIC KEY MANAGEMENT)
142  * Function codes for the PRNO (PERFORM RANDOM NUMBER OPERATION)
152  * Function codes for the KMA (CIPHER MESSAGE WITH AUTHENTICATION)
163 #define CPACF_KMA_LPC	0x100	/* Last-Plaintext/Ciphertext */
164 #define CPACF_KMA_LAAD	0x200	/* Last-AAD */
165 #define CPACF_KMA_HS	0x400	/* Hash-subkey Supplied */
170  * Prototype for a not existing function to produce a link
177 					      cpacf_mask_t *mask)  in __cpacf_query_rre()  argument
180 		"	la	%%r1,%[mask]\n"  in __cpacf_query_rre()
183 		: [mask] "=R" (*mask)  in __cpacf_query_rre()
191 					      cpacf_mask_t *mask)  in __cpacf_query_rrf()  argument
194 		"	la	%%r1,%[mask]\n"  in __cpacf_query_rrf()
197 		: [mask] "=R" (*mask)  in __cpacf_query_rrf()
204 					  cpacf_mask_t *mask)  in __cpacf_query()  argument
208 		__cpacf_query_rre(CPACF_KDSA, 0, 2, mask);  in __cpacf_query()
211 		__cpacf_query_rre(CPACF_KIMD, 0, 2, mask);  in __cpacf_query()
214 		__cpacf_query_rre(CPACF_KLMD, 0, 2, mask);  in __cpacf_query()
217 		__cpacf_query_rre(CPACF_KM, 2, 4, mask);  in __cpacf_query()
220 		__cpacf_query_rrf(CPACF_KMA, 2, 4, 6, 0, mask);  in __cpacf_query()
223 		__cpacf_query_rre(CPACF_KMAC, 0, 2, mask);  in __cpacf_query()
226 		__cpacf_query_rre(CPACF_KMC, 2, 4, mask);  in __cpacf_query()
229 		__cpacf_query_rrf(CPACF_KMCTR, 2, 4, 6, 0, mask);  in __cpacf_query()
232 		__cpacf_query_rre(CPACF_KMF, 2, 4, mask);  in __cpacf_query()
235 		__cpacf_query_rre(CPACF_KMO, 2, 4, mask);  in __cpacf_query()
238 		__cpacf_query_rre(CPACF_PCC, 0, 0, mask);  in __cpacf_query()
241 		__cpacf_query_rre(CPACF_PCKMO, 0, 0, mask);  in __cpacf_query()
244 		__cpacf_query_rre(CPACF_PRNO, 2, 4, mask);  in __cpacf_query()
278  * cpacf_query() - check if a specific CPACF function is available
280  * @func: the function code to test for
282  * Executes the query function for the given crypto instruction @opcode
287 static __always_inline int cpacf_query(unsigned int opcode, cpacf_mask_t *mask)  in cpacf_query()  argument
290 		__cpacf_query(opcode, mask);  in cpacf_query()
293 	memset(mask, 0, sizeof(*mask));  in cpacf_query()
297 static inline int cpacf_test_func(cpacf_mask_t *mask, unsigned int func)  in cpacf_test_func()  argument
299 	return (mask->bytes[func >> 3] & (0x80 >> (func & 7))) != 0;  in cpacf_test_func()
304 	cpacf_mask_t mask;  in cpacf_query_func()  local
306 	if (cpacf_query(opcode, &mask))  in cpacf_query_func()
307 		return cpacf_test_func(&mask, func);  in cpacf_query_func()
312  * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction
313  * @func: the function code passed to KM; see CPACF_KM_xxx defines
340 	return src_len - s.odd;  in cpacf_km()
344  * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction
345  * @func: the function code passed to KM; see CPACF_KMC_xxx defines
372 	return src_len - s.odd;  in cpacf_kmc()
376  * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST)
378  * @func: the function code passed to KM; see CPACF_KIMD_xxx defines
402  * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction
403  * @func: the function code passed to KM; see CPACF_KLMD_xxx defines
427  * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE)
429  * @func: the function code passed to KM; see CPACF_KMAC_xxx defines
453 	return src_len - s.odd;  in cpacf_kmac()
457  * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction
458  * @func: the function code passed to KMCTR; see CPACF_KMCTR_xxx defines
488 	return src_len - s.odd;  in cpacf_kmctr()
492  * cpacf_prno() - executes the PRNO (PERFORM RANDOM NUMBER OPERATION)
494  * @func: the function code passed to PRNO; see CPACF_PRNO_xxx defines
523  * cpacf_trng() - executes the TRNG subfunction of the PRNO instruction
548  * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION)
550  * @func: the function code passed to PCC; see CPACF_KM_xxx defines
567  * cpacf_pckmo() - executes the PCKMO (PERFORM CRYPTOGRAPHIC KEY
569  * @func: the function code passed to PCKMO; see CPACF_PCKMO_xxx defines
587  * cpacf_kma() - executes the KMA (CIPHER MESSAGE WITH AUTHENTICATION)
589  * @func: the function code passed to KMA; see CPACF_KMA_xxx defines