1*b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 2c7d4d259SMartin Schwidefsky /* 3c7d4d259SMartin Schwidefsky * CP Assist for Cryptographic Functions (CPACF) 4c7d4d259SMartin Schwidefsky * 5c7d4d259SMartin Schwidefsky * Copyright IBM Corp. 2003, 2016 6c7d4d259SMartin Schwidefsky * Author(s): Thomas Spatzier 7c7d4d259SMartin Schwidefsky * Jan Glauber 8c7d4d259SMartin Schwidefsky * Harald Freudenberger (freude@de.ibm.com) 9c7d4d259SMartin Schwidefsky * Martin Schwidefsky <schwidefsky@de.ibm.com> 10c7d4d259SMartin Schwidefsky */ 11c7d4d259SMartin Schwidefsky #ifndef _ASM_S390_CPACF_H 12c7d4d259SMartin Schwidefsky #define _ASM_S390_CPACF_H 13c7d4d259SMartin Schwidefsky 14c7d4d259SMartin Schwidefsky #include <asm/facility.h> 15c7d4d259SMartin Schwidefsky 16c7d4d259SMartin Schwidefsky /* 17c7d4d259SMartin Schwidefsky * Instruction opcodes for the CPACF instructions 18c7d4d259SMartin Schwidefsky */ 19c7d4d259SMartin Schwidefsky #define CPACF_KMAC 0xb91e /* MSA */ 20c7d4d259SMartin Schwidefsky #define CPACF_KM 0xb92e /* MSA */ 21c7d4d259SMartin Schwidefsky #define CPACF_KMC 0xb92f /* MSA */ 22c7d4d259SMartin Schwidefsky #define CPACF_KIMD 0xb93e /* MSA */ 23c7d4d259SMartin Schwidefsky #define CPACF_KLMD 0xb93f /* MSA */ 241afd43e0SDavid Hildenbrand #define CPACF_PCKMO 0xb928 /* MSA3 */ 251afd43e0SDavid Hildenbrand #define CPACF_KMF 0xb92a /* MSA4 */ 261afd43e0SDavid Hildenbrand #define CPACF_KMO 0xb92b /* MSA4 */ 27c7d4d259SMartin Schwidefsky #define CPACF_PCC 0xb92c /* MSA4 */ 28c7d4d259SMartin Schwidefsky #define CPACF_KMCTR 0xb92d /* MSA4 */ 29985a9d20SHarald Freudenberger #define CPACF_PRNO 0xb93c /* MSA5 */ 30152c1c8dSJason J. Herne #define CPACF_KMA 0xb929 /* MSA8 */ 31c7d4d259SMartin Schwidefsky 32c7d4d259SMartin Schwidefsky /* 3327937843SMartin Schwidefsky * En/decryption modifier bits 34edc63a37SMartin Schwidefsky */ 3527937843SMartin Schwidefsky #define CPACF_ENCRYPT 0x00 36edc63a37SMartin Schwidefsky #define CPACF_DECRYPT 0x80 37edc63a37SMartin Schwidefsky 38edc63a37SMartin Schwidefsky /* 39edc63a37SMartin Schwidefsky * Function codes for the KM (CIPHER MESSAGE) instruction 40c7d4d259SMartin Schwidefsky */ 41c7d4d259SMartin Schwidefsky #define CPACF_KM_QUERY 0x00 42edc63a37SMartin Schwidefsky #define CPACF_KM_DEA 0x01 43edc63a37SMartin Schwidefsky #define CPACF_KM_TDEA_128 0x02 44edc63a37SMartin Schwidefsky #define CPACF_KM_TDEA_192 0x03 45edc63a37SMartin Schwidefsky #define CPACF_KM_AES_128 0x12 46edc63a37SMartin Schwidefsky #define CPACF_KM_AES_192 0x13 47edc63a37SMartin Schwidefsky #define CPACF_KM_AES_256 0x14 4827937843SMartin Schwidefsky #define CPACF_KM_PAES_128 0x1a 4927937843SMartin Schwidefsky #define CPACF_KM_PAES_192 0x1b 5027937843SMartin Schwidefsky #define CPACF_KM_PAES_256 0x1c 51edc63a37SMartin Schwidefsky #define CPACF_KM_XTS_128 0x32 52edc63a37SMartin Schwidefsky #define CPACF_KM_XTS_256 0x34 5327937843SMartin Schwidefsky #define CPACF_KM_PXTS_128 0x3a 5427937843SMartin Schwidefsky #define CPACF_KM_PXTS_256 0x3c 55c7d4d259SMartin Schwidefsky 56c7d4d259SMartin Schwidefsky /* 57c7d4d259SMartin Schwidefsky * Function codes for the KMC (CIPHER MESSAGE WITH CHAINING) 58edc63a37SMartin Schwidefsky * instruction 59c7d4d259SMartin Schwidefsky */ 60c7d4d259SMartin Schwidefsky #define CPACF_KMC_QUERY 0x00 61edc63a37SMartin Schwidefsky #define CPACF_KMC_DEA 0x01 62edc63a37SMartin Schwidefsky #define CPACF_KMC_TDEA_128 0x02 63edc63a37SMartin Schwidefsky #define CPACF_KMC_TDEA_192 0x03 64edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_128 0x12 65edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_192 0x13 66edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_256 0x14 6727937843SMartin Schwidefsky #define CPACF_KMC_PAES_128 0x1a 6827937843SMartin Schwidefsky #define CPACF_KMC_PAES_192 0x1b 6927937843SMartin Schwidefsky #define CPACF_KMC_PAES_256 0x1c 70c7d4d259SMartin Schwidefsky #define CPACF_KMC_PRNG 0x43 71c7d4d259SMartin Schwidefsky 72c7d4d259SMartin Schwidefsky /* 73c7d4d259SMartin Schwidefsky * Function codes for the KMCTR (CIPHER MESSAGE WITH COUNTER) 74edc63a37SMartin Schwidefsky * instruction 75c7d4d259SMartin Schwidefsky */ 76c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_QUERY 0x00 77edc63a37SMartin Schwidefsky #define CPACF_KMCTR_DEA 0x01 78edc63a37SMartin Schwidefsky #define CPACF_KMCTR_TDEA_128 0x02 79edc63a37SMartin Schwidefsky #define CPACF_KMCTR_TDEA_192 0x03 80edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_128 0x12 81edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_192 0x13 82edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_256 0x14 8327937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_128 0x1a 8427937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_192 0x1b 8527937843SMartin Schwidefsky #define CPACF_KMCTR_PAES_256 0x1c 86c7d4d259SMartin Schwidefsky 87c7d4d259SMartin Schwidefsky /* 88c7d4d259SMartin Schwidefsky * Function codes for the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 89edc63a37SMartin Schwidefsky * instruction 90c7d4d259SMartin Schwidefsky */ 91c7d4d259SMartin Schwidefsky #define CPACF_KIMD_QUERY 0x00 92c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_1 0x01 93c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_256 0x02 94c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_512 0x03 95c7d4d259SMartin Schwidefsky #define CPACF_KIMD_GHASH 0x41 96c7d4d259SMartin Schwidefsky 97c7d4d259SMartin Schwidefsky /* 98c7d4d259SMartin Schwidefsky * Function codes for the KLMD (COMPUTE LAST MESSAGE DIGEST) 99edc63a37SMartin Schwidefsky * instruction 100c7d4d259SMartin Schwidefsky */ 101c7d4d259SMartin Schwidefsky #define CPACF_KLMD_QUERY 0x00 102c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_1 0x01 103c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_256 0x02 104c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_512 0x03 105c7d4d259SMartin Schwidefsky 106c7d4d259SMartin Schwidefsky /* 107c7d4d259SMartin Schwidefsky * function codes for the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 108edc63a37SMartin Schwidefsky * instruction 109c7d4d259SMartin Schwidefsky */ 110c7d4d259SMartin Schwidefsky #define CPACF_KMAC_QUERY 0x00 111c7d4d259SMartin Schwidefsky #define CPACF_KMAC_DEA 0x01 112c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_128 0x02 113c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_192 0x03 114c7d4d259SMartin Schwidefsky 115c7d4d259SMartin Schwidefsky /* 11677606708SHarald Freudenberger * Function codes for the PCKMO (PERFORM CRYPTOGRAPHIC KEY MANAGEMENT) 11777606708SHarald Freudenberger * instruction 11877606708SHarald Freudenberger */ 11977606708SHarald Freudenberger #define CPACF_PCKMO_QUERY 0x00 12077606708SHarald Freudenberger #define CPACF_PCKMO_ENC_DES_KEY 0x01 12177606708SHarald Freudenberger #define CPACF_PCKMO_ENC_TDES_128_KEY 0x02 12277606708SHarald Freudenberger #define CPACF_PCKMO_ENC_TDES_192_KEY 0x03 12377606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_128_KEY 0x12 12477606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_192_KEY 0x13 12577606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_256_KEY 0x14 12677606708SHarald Freudenberger 12777606708SHarald Freudenberger /* 128985a9d20SHarald Freudenberger * Function codes for the PRNO (PERFORM RANDOM NUMBER OPERATION) 129edc63a37SMartin Schwidefsky * instruction 130c7d4d259SMartin Schwidefsky */ 131985a9d20SHarald Freudenberger #define CPACF_PRNO_QUERY 0x00 132985a9d20SHarald Freudenberger #define CPACF_PRNO_SHA512_DRNG_GEN 0x03 133985a9d20SHarald Freudenberger #define CPACF_PRNO_SHA512_DRNG_SEED 0x83 134f75fa65dSHarald Freudenberger #define CPACF_PRNO_TRNG_Q_R2C_RATIO 0x70 135f75fa65dSHarald Freudenberger #define CPACF_PRNO_TRNG 0x72 136c7d4d259SMartin Schwidefsky 13769c0e360SMartin Schwidefsky typedef struct { unsigned char bytes[16]; } cpacf_mask_t; 13869c0e360SMartin Schwidefsky 139c7d4d259SMartin Schwidefsky /** 140c7d4d259SMartin Schwidefsky * cpacf_query() - check if a specific CPACF function is available 141c7d4d259SMartin Schwidefsky * @opcode: the opcode of the crypto instruction 142c7d4d259SMartin Schwidefsky * @func: the function code to test for 143c7d4d259SMartin Schwidefsky * 144c7d4d259SMartin Schwidefsky * Executes the query function for the given crypto instruction @opcode 145c7d4d259SMartin Schwidefsky * and checks if @func is available 146c7d4d259SMartin Schwidefsky * 147c7d4d259SMartin Schwidefsky * Returns 1 if @func is available for @opcode, 0 otherwise 148c7d4d259SMartin Schwidefsky */ 14969c0e360SMartin Schwidefsky static inline void __cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 150c7d4d259SMartin Schwidefsky { 151c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = 0; /* query function */ 15269c0e360SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) mask; 153c7d4d259SMartin Schwidefsky 154c7d4d259SMartin Schwidefsky asm volatile( 1551afd43e0SDavid Hildenbrand " spm 0\n" /* pckmo doesn't change the cc */ 156b112a2dfSJason J. Herne /* Parameter regs are ignored, but must be nonzero and unique */ 157b112a2dfSJason J. Herne "0: .insn rrf,%[opc] << 16,2,4,6,0\n" 158c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 15969c0e360SMartin Schwidefsky : "=m" (*mask) 160c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (opcode) 161c7d4d259SMartin Schwidefsky : "cc"); 162c7d4d259SMartin Schwidefsky } 163c7d4d259SMartin Schwidefsky 16469c0e360SMartin Schwidefsky static inline int __cpacf_check_opcode(unsigned int opcode) 165c7d4d259SMartin Schwidefsky { 166c7d4d259SMartin Schwidefsky switch (opcode) { 167c7d4d259SMartin Schwidefsky case CPACF_KMAC: 168c7d4d259SMartin Schwidefsky case CPACF_KM: 169c7d4d259SMartin Schwidefsky case CPACF_KMC: 170c7d4d259SMartin Schwidefsky case CPACF_KIMD: 171c7d4d259SMartin Schwidefsky case CPACF_KLMD: 17269c0e360SMartin Schwidefsky return test_facility(17); /* check for MSA */ 1731afd43e0SDavid Hildenbrand case CPACF_PCKMO: 17469c0e360SMartin Schwidefsky return test_facility(76); /* check for MSA3 */ 1751afd43e0SDavid Hildenbrand case CPACF_KMF: 1761afd43e0SDavid Hildenbrand case CPACF_KMO: 177c7d4d259SMartin Schwidefsky case CPACF_PCC: 178c7d4d259SMartin Schwidefsky case CPACF_KMCTR: 17969c0e360SMartin Schwidefsky return test_facility(77); /* check for MSA4 */ 180985a9d20SHarald Freudenberger case CPACF_PRNO: 18169c0e360SMartin Schwidefsky return test_facility(57); /* check for MSA5 */ 182c7d4d259SMartin Schwidefsky default: 183c7d4d259SMartin Schwidefsky BUG(); 184c7d4d259SMartin Schwidefsky } 18569c0e360SMartin Schwidefsky } 18669c0e360SMartin Schwidefsky 18769c0e360SMartin Schwidefsky static inline int cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 18869c0e360SMartin Schwidefsky { 18969c0e360SMartin Schwidefsky if (__cpacf_check_opcode(opcode)) { 19069c0e360SMartin Schwidefsky __cpacf_query(opcode, mask); 19169c0e360SMartin Schwidefsky return 1; 19269c0e360SMartin Schwidefsky } 19369c0e360SMartin Schwidefsky memset(mask, 0, sizeof(*mask)); 19469c0e360SMartin Schwidefsky return 0; 19569c0e360SMartin Schwidefsky } 19669c0e360SMartin Schwidefsky 19769c0e360SMartin Schwidefsky static inline int cpacf_test_func(cpacf_mask_t *mask, unsigned int func) 19869c0e360SMartin Schwidefsky { 19969c0e360SMartin Schwidefsky return (mask->bytes[func >> 3] & (0x80 >> (func & 7))) != 0; 20069c0e360SMartin Schwidefsky } 20169c0e360SMartin Schwidefsky 20269c0e360SMartin Schwidefsky static inline int cpacf_query_func(unsigned int opcode, unsigned int func) 20369c0e360SMartin Schwidefsky { 20469c0e360SMartin Schwidefsky cpacf_mask_t mask; 20569c0e360SMartin Schwidefsky 20669c0e360SMartin Schwidefsky if (cpacf_query(opcode, &mask)) 20769c0e360SMartin Schwidefsky return cpacf_test_func(&mask, func); 20869c0e360SMartin Schwidefsky return 0; 209c7d4d259SMartin Schwidefsky } 210c7d4d259SMartin Schwidefsky 211c7d4d259SMartin Schwidefsky /** 212c7d4d259SMartin Schwidefsky * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction 213c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KM_xxx defines 214c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 215c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 216c7d4d259SMartin Schwidefsky * @src: address of source memory area 217c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 218c7d4d259SMartin Schwidefsky * 219c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 220c7d4d259SMartin Schwidefsky * encryption/decryption funcs 221c7d4d259SMartin Schwidefsky */ 222edc63a37SMartin Schwidefsky static inline int cpacf_km(unsigned long func, void *param, 223c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 224c7d4d259SMartin Schwidefsky { 225c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 226c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 227c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 228c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 229c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 230c7d4d259SMartin Schwidefsky 231c7d4d259SMartin Schwidefsky asm volatile( 232c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 233c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 234c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 235c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KM) 236c7d4d259SMartin Schwidefsky : "cc", "memory"); 237c7d4d259SMartin Schwidefsky 238c7d4d259SMartin Schwidefsky return src_len - r3; 239c7d4d259SMartin Schwidefsky } 240c7d4d259SMartin Schwidefsky 241c7d4d259SMartin Schwidefsky /** 242c7d4d259SMartin Schwidefsky * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction 243c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMC_xxx defines 244c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 245c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 246c7d4d259SMartin Schwidefsky * @src: address of source memory area 247c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 248c7d4d259SMartin Schwidefsky * 249c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 250c7d4d259SMartin Schwidefsky * encryption/decryption funcs 251c7d4d259SMartin Schwidefsky */ 252edc63a37SMartin Schwidefsky static inline int cpacf_kmc(unsigned long func, void *param, 253c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 254c7d4d259SMartin Schwidefsky { 255c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 256c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 257c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 258c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 259c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 260c7d4d259SMartin Schwidefsky 261c7d4d259SMartin Schwidefsky asm volatile( 262c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 263c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 264c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 265c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMC) 266c7d4d259SMartin Schwidefsky : "cc", "memory"); 267c7d4d259SMartin Schwidefsky 268c7d4d259SMartin Schwidefsky return src_len - r3; 269c7d4d259SMartin Schwidefsky } 270c7d4d259SMartin Schwidefsky 271c7d4d259SMartin Schwidefsky /** 272c7d4d259SMartin Schwidefsky * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 273c7d4d259SMartin Schwidefsky * instruction 274c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KIMD_xxx defines 275c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 276c7d4d259SMartin Schwidefsky * @src: address of source memory area 277c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 278c7d4d259SMartin Schwidefsky */ 2790177db01SMartin Schwidefsky static inline void cpacf_kimd(unsigned long func, void *param, 280c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 281c7d4d259SMartin Schwidefsky { 282c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 283c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 284c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 285c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 286c7d4d259SMartin Schwidefsky 287c7d4d259SMartin Schwidefsky asm volatile( 288c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 289c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 290c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 291c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KIMD) 292c7d4d259SMartin Schwidefsky : "cc", "memory"); 293c7d4d259SMartin Schwidefsky } 294c7d4d259SMartin Schwidefsky 295c7d4d259SMartin Schwidefsky /** 296c7d4d259SMartin Schwidefsky * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction 297c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KLMD_xxx defines 298c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 299c7d4d259SMartin Schwidefsky * @src: address of source memory area 300c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 301c7d4d259SMartin Schwidefsky */ 3020177db01SMartin Schwidefsky static inline void cpacf_klmd(unsigned long func, void *param, 303c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 304c7d4d259SMartin Schwidefsky { 305c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 306c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 307c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 308c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 309c7d4d259SMartin Schwidefsky 310c7d4d259SMartin Schwidefsky asm volatile( 311c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 312c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 313c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 314c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KLMD) 315c7d4d259SMartin Schwidefsky : "cc", "memory"); 316c7d4d259SMartin Schwidefsky } 317c7d4d259SMartin Schwidefsky 318c7d4d259SMartin Schwidefsky /** 319c7d4d259SMartin Schwidefsky * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 320c7d4d259SMartin Schwidefsky * instruction 321c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMAC_xxx defines 322c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 323c7d4d259SMartin Schwidefsky * @src: address of source memory area 324c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 325c7d4d259SMartin Schwidefsky * 326c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for digest funcs 327c7d4d259SMartin Schwidefsky */ 328edc63a37SMartin Schwidefsky static inline int cpacf_kmac(unsigned long func, void *param, 329c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 330c7d4d259SMartin Schwidefsky { 331c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 332c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 333c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 334c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 335c7d4d259SMartin Schwidefsky 336c7d4d259SMartin Schwidefsky asm volatile( 337c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 338c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 339c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 340c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMAC) 341c7d4d259SMartin Schwidefsky : "cc", "memory"); 342c7d4d259SMartin Schwidefsky 343c7d4d259SMartin Schwidefsky return src_len - r3; 344c7d4d259SMartin Schwidefsky } 345c7d4d259SMartin Schwidefsky 346c7d4d259SMartin Schwidefsky /** 347c7d4d259SMartin Schwidefsky * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction 348c7d4d259SMartin Schwidefsky * @func: the function code passed to KMCTR; see CPACF_KMCTR_xxx defines 349c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 350c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 351c7d4d259SMartin Schwidefsky * @src: address of source memory area 352c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 353c7d4d259SMartin Schwidefsky * @counter: address of counter value 354c7d4d259SMartin Schwidefsky * 355c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 356c7d4d259SMartin Schwidefsky * encryption/decryption funcs 357c7d4d259SMartin Schwidefsky */ 358edc63a37SMartin Schwidefsky static inline int cpacf_kmctr(unsigned long func, void *param, u8 *dest, 359c7d4d259SMartin Schwidefsky const u8 *src, long src_len, u8 *counter) 360c7d4d259SMartin Schwidefsky { 361c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 362c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 363c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 364c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 365c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 366c7d4d259SMartin Schwidefsky register unsigned long r6 asm("6") = (unsigned long) counter; 367c7d4d259SMartin Schwidefsky 368c7d4d259SMartin Schwidefsky asm volatile( 369c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[ctr],0\n" 370c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 371c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), 372c7d4d259SMartin Schwidefsky [dst] "+a" (r4), [ctr] "+a" (r6) 373c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMCTR) 374c7d4d259SMartin Schwidefsky : "cc", "memory"); 375c7d4d259SMartin Schwidefsky 376c7d4d259SMartin Schwidefsky return src_len - r3; 377c7d4d259SMartin Schwidefsky } 378c7d4d259SMartin Schwidefsky 379c7d4d259SMartin Schwidefsky /** 380985a9d20SHarald Freudenberger * cpacf_prno() - executes the PRNO (PERFORM RANDOM NUMBER OPERATION) 381c7d4d259SMartin Schwidefsky * instruction 382985a9d20SHarald Freudenberger * @func: the function code passed to PRNO; see CPACF_PRNO_xxx defines 383c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 384c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 385c7d4d259SMartin Schwidefsky * @dest_len: size of destination memory area in bytes 386c7d4d259SMartin Schwidefsky * @seed: address of seed data 387c7d4d259SMartin Schwidefsky * @seed_len: size of seed data in bytes 388c7d4d259SMartin Schwidefsky */ 389985a9d20SHarald Freudenberger static inline void cpacf_prno(unsigned long func, void *param, 390f75fa65dSHarald Freudenberger u8 *dest, unsigned long dest_len, 391f75fa65dSHarald Freudenberger const u8 *seed, unsigned long seed_len) 392c7d4d259SMartin Schwidefsky { 393c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 394c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 395c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) dest; 396c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) dest_len; 397c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) seed; 398c7d4d259SMartin Schwidefsky register unsigned long r5 asm("5") = (unsigned long) seed_len; 399c7d4d259SMartin Schwidefsky 400c7d4d259SMartin Schwidefsky asm volatile ( 401c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[seed]\n" 402c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 403c7d4d259SMartin Schwidefsky : [dst] "+a" (r2), [dlen] "+d" (r3) 404c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), 405985a9d20SHarald Freudenberger [seed] "a" (r4), [slen] "d" (r5), [opc] "i" (CPACF_PRNO) 406c7d4d259SMartin Schwidefsky : "cc", "memory"); 407c7d4d259SMartin Schwidefsky } 408c7d4d259SMartin Schwidefsky 409c7d4d259SMartin Schwidefsky /** 410f75fa65dSHarald Freudenberger * cpacf_trng() - executes the TRNG subfunction of the PRNO instruction 411f75fa65dSHarald Freudenberger * @ucbuf: buffer for unconditioned data 412f75fa65dSHarald Freudenberger * @ucbuf_len: amount of unconditioned data to fetch in bytes 413f75fa65dSHarald Freudenberger * @cbuf: buffer for conditioned data 414f75fa65dSHarald Freudenberger * @cbuf_len: amount of conditioned data to fetch in bytes 415f75fa65dSHarald Freudenberger */ 416f75fa65dSHarald Freudenberger static inline void cpacf_trng(u8 *ucbuf, unsigned long ucbuf_len, 417f75fa65dSHarald Freudenberger u8 *cbuf, unsigned long cbuf_len) 418f75fa65dSHarald Freudenberger { 419f75fa65dSHarald Freudenberger register unsigned long r0 asm("0") = (unsigned long) CPACF_PRNO_TRNG; 420f75fa65dSHarald Freudenberger register unsigned long r2 asm("2") = (unsigned long) ucbuf; 421f75fa65dSHarald Freudenberger register unsigned long r3 asm("3") = (unsigned long) ucbuf_len; 422f75fa65dSHarald Freudenberger register unsigned long r4 asm("4") = (unsigned long) cbuf; 423f75fa65dSHarald Freudenberger register unsigned long r5 asm("5") = (unsigned long) cbuf_len; 424f75fa65dSHarald Freudenberger 425f75fa65dSHarald Freudenberger asm volatile ( 426f75fa65dSHarald Freudenberger "0: .insn rre,%[opc] << 16,%[ucbuf],%[cbuf]\n" 427f75fa65dSHarald Freudenberger " brc 1,0b\n" /* handle partial completion */ 428f75fa65dSHarald Freudenberger : [ucbuf] "+a" (r2), [ucbuflen] "+d" (r3), 429f75fa65dSHarald Freudenberger [cbuf] "+a" (r4), [cbuflen] "+d" (r5) 430f75fa65dSHarald Freudenberger : [fc] "d" (r0), [opc] "i" (CPACF_PRNO) 431f75fa65dSHarald Freudenberger : "cc", "memory"); 432f75fa65dSHarald Freudenberger } 433f75fa65dSHarald Freudenberger 434f75fa65dSHarald Freudenberger /** 435c7d4d259SMartin Schwidefsky * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION) 436c7d4d259SMartin Schwidefsky * instruction 437c7d4d259SMartin Schwidefsky * @func: the function code passed to PCC; see CPACF_KM_xxx defines 438c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 439c7d4d259SMartin Schwidefsky */ 4400177db01SMartin Schwidefsky static inline void cpacf_pcc(unsigned long func, void *param) 441c7d4d259SMartin Schwidefsky { 442c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 443c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 444c7d4d259SMartin Schwidefsky 445c7d4d259SMartin Schwidefsky asm volatile( 446c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,0\n" /* PCC opcode */ 447c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 448c7d4d259SMartin Schwidefsky : 449c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCC) 450c7d4d259SMartin Schwidefsky : "cc", "memory"); 451c7d4d259SMartin Schwidefsky } 452c7d4d259SMartin Schwidefsky 45377606708SHarald Freudenberger /** 45477606708SHarald Freudenberger * cpacf_pckmo() - executes the PCKMO (PERFORM CRYPTOGRAPHIC KEY 45577606708SHarald Freudenberger * MANAGEMENT) instruction 45677606708SHarald Freudenberger * @func: the function code passed to PCKMO; see CPACF_PCKMO_xxx defines 45777606708SHarald Freudenberger * @param: address of parameter block; see POP for details on each func 45877606708SHarald Freudenberger * 45977606708SHarald Freudenberger * Returns 0. 46077606708SHarald Freudenberger */ 46177606708SHarald Freudenberger static inline void cpacf_pckmo(long func, void *param) 46277606708SHarald Freudenberger { 46377606708SHarald Freudenberger register unsigned long r0 asm("0") = (unsigned long) func; 46477606708SHarald Freudenberger register unsigned long r1 asm("1") = (unsigned long) param; 46577606708SHarald Freudenberger 46677606708SHarald Freudenberger asm volatile( 46777606708SHarald Freudenberger " .insn rre,%[opc] << 16,0,0\n" /* PCKMO opcode */ 46877606708SHarald Freudenberger : 46977606708SHarald Freudenberger : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCKMO) 47077606708SHarald Freudenberger : "cc", "memory"); 47177606708SHarald Freudenberger } 47277606708SHarald Freudenberger 473c7d4d259SMartin Schwidefsky #endif /* _ASM_S390_CPACF_H */ 474