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  * cpacf_query() - check if a specific CPACF function is available
172  * @func: the function code to test for
174  * Executes the query function for the given crypto instruction @opcode
179 static __always_inline void __cpacf_query(unsigned int opcode, cpacf_mask_t *mask)  in __cpacf_query()  argument
182 		"	lghi	0,0\n" /* query function */  in __cpacf_query()
183 		"	lgr	1,%[mask]\n"  in __cpacf_query()
188 		: "=m" (*mask)  in __cpacf_query()
189 		: [mask] "d" ((unsigned long)mask), [opc] "i" (opcode)  in __cpacf_query()
218 static __always_inline int cpacf_query(unsigned int opcode, cpacf_mask_t *mask)  in cpacf_query()  argument
221 		__cpacf_query(opcode, mask);  in cpacf_query()
224 	memset(mask, 0, sizeof(*mask));  in cpacf_query()
228 static inline int cpacf_test_func(cpacf_mask_t *mask, unsigned int func)  in cpacf_test_func()  argument
230 	return (mask->bytes[func >> 3] & (0x80 >> (func & 7))) != 0;  in cpacf_test_func()
235 	cpacf_mask_t mask;  in cpacf_query_func()  local
237 	if (cpacf_query(opcode, &mask))  in cpacf_query_func()
238 		return cpacf_test_func(&mask, func);  in cpacf_query_func()
243  * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction
244  * @func: the function code passed to KM; see CPACF_KM_xxx defines
271 	return src_len - s.odd;  in cpacf_km()
275  * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction
276  * @func: the function code passed to KM; see CPACF_KMC_xxx defines
303 	return src_len - s.odd;  in cpacf_kmc()
307  * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST)
309  * @func: the function code passed to KM; see CPACF_KIMD_xxx defines
333  * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction
334  * @func: the function code passed to KM; see CPACF_KLMD_xxx defines
358  * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE)
360  * @func: the function code passed to KM; see CPACF_KMAC_xxx defines
384 	return src_len - s.odd;  in cpacf_kmac()
388  * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction
389  * @func: the function code passed to KMCTR; see CPACF_KMCTR_xxx defines
419 	return src_len - s.odd;  in cpacf_kmctr()
423  * cpacf_prno() - executes the PRNO (PERFORM RANDOM NUMBER OPERATION)
425  * @func: the function code passed to PRNO; see CPACF_PRNO_xxx defines
454  * cpacf_trng() - executes the TRNG subfunction of the PRNO instruction
479  * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION)
481  * @func: the function code passed to PCC; see CPACF_KM_xxx defines
498  * cpacf_pckmo() - executes the PCKMO (PERFORM CRYPTOGRAPHIC KEY
500  * @func: the function code passed to PCKMO; see CPACF_PCKMO_xxx defines
518  * cpacf_kma() - executes the KMA (CIPHER MESSAGE WITH AUTHENTICATION)
520  * @func: the function code passed to KMA; see CPACF_KMA_xxx defines