1c7d4d259SMartin Schwidefsky /* 2c7d4d259SMartin Schwidefsky * CP Assist for Cryptographic Functions (CPACF) 3c7d4d259SMartin Schwidefsky * 4c7d4d259SMartin Schwidefsky * Copyright IBM Corp. 2003, 2016 5c7d4d259SMartin Schwidefsky * Author(s): Thomas Spatzier 6c7d4d259SMartin Schwidefsky * Jan Glauber 7c7d4d259SMartin Schwidefsky * Harald Freudenberger (freude@de.ibm.com) 8c7d4d259SMartin Schwidefsky * Martin Schwidefsky <schwidefsky@de.ibm.com> 9c7d4d259SMartin Schwidefsky */ 10c7d4d259SMartin Schwidefsky #ifndef _ASM_S390_CPACF_H 11c7d4d259SMartin Schwidefsky #define _ASM_S390_CPACF_H 12c7d4d259SMartin Schwidefsky 13c7d4d259SMartin Schwidefsky #include <asm/facility.h> 14c7d4d259SMartin Schwidefsky 15c7d4d259SMartin Schwidefsky /* 16c7d4d259SMartin Schwidefsky * Instruction opcodes for the CPACF instructions 17c7d4d259SMartin Schwidefsky */ 18c7d4d259SMartin Schwidefsky #define CPACF_KMAC 0xb91e /* MSA */ 19c7d4d259SMartin Schwidefsky #define CPACF_KM 0xb92e /* MSA */ 20c7d4d259SMartin Schwidefsky #define CPACF_KMC 0xb92f /* MSA */ 21c7d4d259SMartin Schwidefsky #define CPACF_KIMD 0xb93e /* MSA */ 22c7d4d259SMartin Schwidefsky #define CPACF_KLMD 0xb93f /* MSA */ 231afd43e0SDavid Hildenbrand #define CPACF_PCKMO 0xb928 /* MSA3 */ 241afd43e0SDavid Hildenbrand #define CPACF_KMF 0xb92a /* MSA4 */ 251afd43e0SDavid Hildenbrand #define CPACF_KMO 0xb92b /* MSA4 */ 26c7d4d259SMartin Schwidefsky #define CPACF_PCC 0xb92c /* MSA4 */ 27c7d4d259SMartin Schwidefsky #define CPACF_KMCTR 0xb92d /* MSA4 */ 28c7d4d259SMartin Schwidefsky #define CPACF_PPNO 0xb93c /* MSA5 */ 29c7d4d259SMartin Schwidefsky 30c7d4d259SMartin Schwidefsky /* 31edc63a37SMartin Schwidefsky * Decryption modifier bit 32edc63a37SMartin Schwidefsky */ 33edc63a37SMartin Schwidefsky #define CPACF_DECRYPT 0x80 34edc63a37SMartin Schwidefsky 35edc63a37SMartin Schwidefsky /* 36edc63a37SMartin Schwidefsky * Function codes for the KM (CIPHER MESSAGE) instruction 37c7d4d259SMartin Schwidefsky */ 38c7d4d259SMartin Schwidefsky #define CPACF_KM_QUERY 0x00 39edc63a37SMartin Schwidefsky #define CPACF_KM_DEA 0x01 40edc63a37SMartin Schwidefsky #define CPACF_KM_TDEA_128 0x02 41edc63a37SMartin Schwidefsky #define CPACF_KM_TDEA_192 0x03 42edc63a37SMartin Schwidefsky #define CPACF_KM_AES_128 0x12 43edc63a37SMartin Schwidefsky #define CPACF_KM_AES_192 0x13 44edc63a37SMartin Schwidefsky #define CPACF_KM_AES_256 0x14 45edc63a37SMartin Schwidefsky #define CPACF_KM_XTS_128 0x32 46edc63a37SMartin Schwidefsky #define CPACF_KM_XTS_256 0x34 47c7d4d259SMartin Schwidefsky 48c7d4d259SMartin Schwidefsky /* 49c7d4d259SMartin Schwidefsky * Function codes for the KMC (CIPHER MESSAGE WITH CHAINING) 50edc63a37SMartin Schwidefsky * instruction 51c7d4d259SMartin Schwidefsky */ 52c7d4d259SMartin Schwidefsky #define CPACF_KMC_QUERY 0x00 53edc63a37SMartin Schwidefsky #define CPACF_KMC_DEA 0x01 54edc63a37SMartin Schwidefsky #define CPACF_KMC_TDEA_128 0x02 55edc63a37SMartin Schwidefsky #define CPACF_KMC_TDEA_192 0x03 56edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_128 0x12 57edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_192 0x13 58edc63a37SMartin Schwidefsky #define CPACF_KMC_AES_256 0x14 59c7d4d259SMartin Schwidefsky #define CPACF_KMC_PRNG 0x43 60c7d4d259SMartin Schwidefsky 61c7d4d259SMartin Schwidefsky /* 62c7d4d259SMartin Schwidefsky * Function codes for the KMCTR (CIPHER MESSAGE WITH COUNTER) 63edc63a37SMartin Schwidefsky * instruction 64c7d4d259SMartin Schwidefsky */ 65c7d4d259SMartin Schwidefsky #define CPACF_KMCTR_QUERY 0x00 66edc63a37SMartin Schwidefsky #define CPACF_KMCTR_DEA 0x01 67edc63a37SMartin Schwidefsky #define CPACF_KMCTR_TDEA_128 0x02 68edc63a37SMartin Schwidefsky #define CPACF_KMCTR_TDEA_192 0x03 69edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_128 0x12 70edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_192 0x13 71edc63a37SMartin Schwidefsky #define CPACF_KMCTR_AES_256 0x14 72c7d4d259SMartin Schwidefsky 73c7d4d259SMartin Schwidefsky /* 74c7d4d259SMartin Schwidefsky * Function codes for the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 75edc63a37SMartin Schwidefsky * instruction 76c7d4d259SMartin Schwidefsky */ 77c7d4d259SMartin Schwidefsky #define CPACF_KIMD_QUERY 0x00 78c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_1 0x01 79c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_256 0x02 80c7d4d259SMartin Schwidefsky #define CPACF_KIMD_SHA_512 0x03 81c7d4d259SMartin Schwidefsky #define CPACF_KIMD_GHASH 0x41 82c7d4d259SMartin Schwidefsky 83c7d4d259SMartin Schwidefsky /* 84c7d4d259SMartin Schwidefsky * Function codes for the KLMD (COMPUTE LAST MESSAGE DIGEST) 85edc63a37SMartin Schwidefsky * instruction 86c7d4d259SMartin Schwidefsky */ 87c7d4d259SMartin Schwidefsky #define CPACF_KLMD_QUERY 0x00 88c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_1 0x01 89c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_256 0x02 90c7d4d259SMartin Schwidefsky #define CPACF_KLMD_SHA_512 0x03 91c7d4d259SMartin Schwidefsky 92c7d4d259SMartin Schwidefsky /* 93c7d4d259SMartin Schwidefsky * function codes for the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 94edc63a37SMartin Schwidefsky * instruction 95c7d4d259SMartin Schwidefsky */ 96c7d4d259SMartin Schwidefsky #define CPACF_KMAC_QUERY 0x00 97c7d4d259SMartin Schwidefsky #define CPACF_KMAC_DEA 0x01 98c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_128 0x02 99c7d4d259SMartin Schwidefsky #define CPACF_KMAC_TDEA_192 0x03 100c7d4d259SMartin Schwidefsky 101c7d4d259SMartin Schwidefsky /* 102*77606708SHarald Freudenberger * Function codes for the PCKMO (PERFORM CRYPTOGRAPHIC KEY MANAGEMENT) 103*77606708SHarald Freudenberger * instruction 104*77606708SHarald Freudenberger */ 105*77606708SHarald Freudenberger #define CPACF_PCKMO_QUERY 0x00 106*77606708SHarald Freudenberger #define CPACF_PCKMO_ENC_DES_KEY 0x01 107*77606708SHarald Freudenberger #define CPACF_PCKMO_ENC_TDES_128_KEY 0x02 108*77606708SHarald Freudenberger #define CPACF_PCKMO_ENC_TDES_192_KEY 0x03 109*77606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_128_KEY 0x12 110*77606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_192_KEY 0x13 111*77606708SHarald Freudenberger #define CPACF_PCKMO_ENC_AES_256_KEY 0x14 112*77606708SHarald Freudenberger 113*77606708SHarald Freudenberger /* 114c7d4d259SMartin Schwidefsky * Function codes for the PPNO (PERFORM PSEUDORANDOM NUMBER OPERATION) 115edc63a37SMartin Schwidefsky * instruction 116c7d4d259SMartin Schwidefsky */ 117c7d4d259SMartin Schwidefsky #define CPACF_PPNO_QUERY 0x00 118c7d4d259SMartin Schwidefsky #define CPACF_PPNO_SHA512_DRNG_GEN 0x03 119c7d4d259SMartin Schwidefsky #define CPACF_PPNO_SHA512_DRNG_SEED 0x83 120c7d4d259SMartin Schwidefsky 12169c0e360SMartin Schwidefsky typedef struct { unsigned char bytes[16]; } cpacf_mask_t; 12269c0e360SMartin Schwidefsky 123c7d4d259SMartin Schwidefsky /** 124c7d4d259SMartin Schwidefsky * cpacf_query() - check if a specific CPACF function is available 125c7d4d259SMartin Schwidefsky * @opcode: the opcode of the crypto instruction 126c7d4d259SMartin Schwidefsky * @func: the function code to test for 127c7d4d259SMartin Schwidefsky * 128c7d4d259SMartin Schwidefsky * Executes the query function for the given crypto instruction @opcode 129c7d4d259SMartin Schwidefsky * and checks if @func is available 130c7d4d259SMartin Schwidefsky * 131c7d4d259SMartin Schwidefsky * Returns 1 if @func is available for @opcode, 0 otherwise 132c7d4d259SMartin Schwidefsky */ 13369c0e360SMartin Schwidefsky static inline void __cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 134c7d4d259SMartin Schwidefsky { 135c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = 0; /* query function */ 13669c0e360SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) mask; 137c7d4d259SMartin Schwidefsky 138c7d4d259SMartin Schwidefsky asm volatile( 1391afd43e0SDavid Hildenbrand " spm 0\n" /* pckmo doesn't change the cc */ 140c7d4d259SMartin Schwidefsky /* Parameter registers are ignored, but may not be 0 */ 141c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,2,2,2,0\n" 142c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 14369c0e360SMartin Schwidefsky : "=m" (*mask) 144c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (opcode) 145c7d4d259SMartin Schwidefsky : "cc"); 146c7d4d259SMartin Schwidefsky } 147c7d4d259SMartin Schwidefsky 14869c0e360SMartin Schwidefsky static inline int __cpacf_check_opcode(unsigned int opcode) 149c7d4d259SMartin Schwidefsky { 150c7d4d259SMartin Schwidefsky switch (opcode) { 151c7d4d259SMartin Schwidefsky case CPACF_KMAC: 152c7d4d259SMartin Schwidefsky case CPACF_KM: 153c7d4d259SMartin Schwidefsky case CPACF_KMC: 154c7d4d259SMartin Schwidefsky case CPACF_KIMD: 155c7d4d259SMartin Schwidefsky case CPACF_KLMD: 15669c0e360SMartin Schwidefsky return test_facility(17); /* check for MSA */ 1571afd43e0SDavid Hildenbrand case CPACF_PCKMO: 15869c0e360SMartin Schwidefsky return test_facility(76); /* check for MSA3 */ 1591afd43e0SDavid Hildenbrand case CPACF_KMF: 1601afd43e0SDavid Hildenbrand case CPACF_KMO: 161c7d4d259SMartin Schwidefsky case CPACF_PCC: 162c7d4d259SMartin Schwidefsky case CPACF_KMCTR: 16369c0e360SMartin Schwidefsky return test_facility(77); /* check for MSA4 */ 164c7d4d259SMartin Schwidefsky case CPACF_PPNO: 16569c0e360SMartin Schwidefsky return test_facility(57); /* check for MSA5 */ 166c7d4d259SMartin Schwidefsky default: 167c7d4d259SMartin Schwidefsky BUG(); 168c7d4d259SMartin Schwidefsky } 16969c0e360SMartin Schwidefsky } 17069c0e360SMartin Schwidefsky 17169c0e360SMartin Schwidefsky static inline int cpacf_query(unsigned int opcode, cpacf_mask_t *mask) 17269c0e360SMartin Schwidefsky { 17369c0e360SMartin Schwidefsky if (__cpacf_check_opcode(opcode)) { 17469c0e360SMartin Schwidefsky __cpacf_query(opcode, mask); 17569c0e360SMartin Schwidefsky return 1; 17669c0e360SMartin Schwidefsky } 17769c0e360SMartin Schwidefsky memset(mask, 0, sizeof(*mask)); 17869c0e360SMartin Schwidefsky return 0; 17969c0e360SMartin Schwidefsky } 18069c0e360SMartin Schwidefsky 18169c0e360SMartin Schwidefsky static inline int cpacf_test_func(cpacf_mask_t *mask, unsigned int func) 18269c0e360SMartin Schwidefsky { 18369c0e360SMartin Schwidefsky return (mask->bytes[func >> 3] & (0x80 >> (func & 7))) != 0; 18469c0e360SMartin Schwidefsky } 18569c0e360SMartin Schwidefsky 18669c0e360SMartin Schwidefsky static inline int cpacf_query_func(unsigned int opcode, unsigned int func) 18769c0e360SMartin Schwidefsky { 18869c0e360SMartin Schwidefsky cpacf_mask_t mask; 18969c0e360SMartin Schwidefsky 19069c0e360SMartin Schwidefsky if (cpacf_query(opcode, &mask)) 19169c0e360SMartin Schwidefsky return cpacf_test_func(&mask, func); 19269c0e360SMartin Schwidefsky return 0; 193c7d4d259SMartin Schwidefsky } 194c7d4d259SMartin Schwidefsky 195c7d4d259SMartin Schwidefsky /** 196c7d4d259SMartin Schwidefsky * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction 197c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KM_xxx defines 198c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 199c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 200c7d4d259SMartin Schwidefsky * @src: address of source memory area 201c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 202c7d4d259SMartin Schwidefsky * 203c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 204c7d4d259SMartin Schwidefsky * encryption/decryption funcs 205c7d4d259SMartin Schwidefsky */ 206edc63a37SMartin Schwidefsky static inline int cpacf_km(unsigned long func, void *param, 207c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 208c7d4d259SMartin Schwidefsky { 209c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 210c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 211c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 212c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 213c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 214c7d4d259SMartin Schwidefsky 215c7d4d259SMartin Schwidefsky asm volatile( 216c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 217c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 218c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 219c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KM) 220c7d4d259SMartin Schwidefsky : "cc", "memory"); 221c7d4d259SMartin Schwidefsky 222c7d4d259SMartin Schwidefsky return src_len - r3; 223c7d4d259SMartin Schwidefsky } 224c7d4d259SMartin Schwidefsky 225c7d4d259SMartin Schwidefsky /** 226c7d4d259SMartin Schwidefsky * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction 227c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMC_xxx defines 228c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 229c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 230c7d4d259SMartin Schwidefsky * @src: address of source memory area 231c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 232c7d4d259SMartin Schwidefsky * 233c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 234c7d4d259SMartin Schwidefsky * encryption/decryption funcs 235c7d4d259SMartin Schwidefsky */ 236edc63a37SMartin Schwidefsky static inline int cpacf_kmc(unsigned long func, void *param, 237c7d4d259SMartin Schwidefsky u8 *dest, const u8 *src, long src_len) 238c7d4d259SMartin Schwidefsky { 239c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 240c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 241c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 242c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 243c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 244c7d4d259SMartin Schwidefsky 245c7d4d259SMartin Schwidefsky asm volatile( 246c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[src]\n" 247c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 248c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4) 249c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMC) 250c7d4d259SMartin Schwidefsky : "cc", "memory"); 251c7d4d259SMartin Schwidefsky 252c7d4d259SMartin Schwidefsky return src_len - r3; 253c7d4d259SMartin Schwidefsky } 254c7d4d259SMartin Schwidefsky 255c7d4d259SMartin Schwidefsky /** 256c7d4d259SMartin Schwidefsky * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST) 257c7d4d259SMartin Schwidefsky * instruction 258c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KIMD_xxx defines 259c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 260c7d4d259SMartin Schwidefsky * @src: address of source memory area 261c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 262c7d4d259SMartin Schwidefsky */ 2630177db01SMartin Schwidefsky static inline void cpacf_kimd(unsigned long func, void *param, 264c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 265c7d4d259SMartin Schwidefsky { 266c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 267c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 268c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 269c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 270c7d4d259SMartin Schwidefsky 271c7d4d259SMartin Schwidefsky asm volatile( 272c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 273c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 274c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 275c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KIMD) 276c7d4d259SMartin Schwidefsky : "cc", "memory"); 277c7d4d259SMartin Schwidefsky } 278c7d4d259SMartin Schwidefsky 279c7d4d259SMartin Schwidefsky /** 280c7d4d259SMartin Schwidefsky * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction 281c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KLMD_xxx defines 282c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 283c7d4d259SMartin Schwidefsky * @src: address of source memory area 284c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 285c7d4d259SMartin Schwidefsky */ 2860177db01SMartin Schwidefsky static inline void cpacf_klmd(unsigned long func, void *param, 287c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 288c7d4d259SMartin Schwidefsky { 289c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 290c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 291c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 292c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 293c7d4d259SMartin Schwidefsky 294c7d4d259SMartin Schwidefsky asm volatile( 295c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 296c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 297c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 298c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KLMD) 299c7d4d259SMartin Schwidefsky : "cc", "memory"); 300c7d4d259SMartin Schwidefsky } 301c7d4d259SMartin Schwidefsky 302c7d4d259SMartin Schwidefsky /** 303c7d4d259SMartin Schwidefsky * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE) 304c7d4d259SMartin Schwidefsky * instruction 305c7d4d259SMartin Schwidefsky * @func: the function code passed to KM; see CPACF_KMAC_xxx defines 306c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 307c7d4d259SMartin Schwidefsky * @src: address of source memory area 308c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 309c7d4d259SMartin Schwidefsky * 310c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for digest funcs 311c7d4d259SMartin Schwidefsky */ 312edc63a37SMartin Schwidefsky static inline int cpacf_kmac(unsigned long func, void *param, 313c7d4d259SMartin Schwidefsky const u8 *src, long src_len) 314c7d4d259SMartin Schwidefsky { 315c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 316c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 317c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 318c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 319c7d4d259SMartin Schwidefsky 320c7d4d259SMartin Schwidefsky asm volatile( 321c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,%[src]\n" 322c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 323c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3) 324c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMAC) 325c7d4d259SMartin Schwidefsky : "cc", "memory"); 326c7d4d259SMartin Schwidefsky 327c7d4d259SMartin Schwidefsky return src_len - r3; 328c7d4d259SMartin Schwidefsky } 329c7d4d259SMartin Schwidefsky 330c7d4d259SMartin Schwidefsky /** 331c7d4d259SMartin Schwidefsky * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction 332c7d4d259SMartin Schwidefsky * @func: the function code passed to KMCTR; see CPACF_KMCTR_xxx defines 333c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 334c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 335c7d4d259SMartin Schwidefsky * @src: address of source memory area 336c7d4d259SMartin Schwidefsky * @src_len: length of src operand in bytes 337c7d4d259SMartin Schwidefsky * @counter: address of counter value 338c7d4d259SMartin Schwidefsky * 339c7d4d259SMartin Schwidefsky * Returns 0 for the query func, number of processed bytes for 340c7d4d259SMartin Schwidefsky * encryption/decryption funcs 341c7d4d259SMartin Schwidefsky */ 342edc63a37SMartin Schwidefsky static inline int cpacf_kmctr(unsigned long func, void *param, u8 *dest, 343c7d4d259SMartin Schwidefsky const u8 *src, long src_len, u8 *counter) 344c7d4d259SMartin Schwidefsky { 345c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 346c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 347c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) src; 348c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) src_len; 349c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) dest; 350c7d4d259SMartin Schwidefsky register unsigned long r6 asm("6") = (unsigned long) counter; 351c7d4d259SMartin Schwidefsky 352c7d4d259SMartin Schwidefsky asm volatile( 353c7d4d259SMartin Schwidefsky "0: .insn rrf,%[opc] << 16,%[dst],%[src],%[ctr],0\n" 354c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 355c7d4d259SMartin Schwidefsky : [src] "+a" (r2), [len] "+d" (r3), 356c7d4d259SMartin Schwidefsky [dst] "+a" (r4), [ctr] "+a" (r6) 357c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMCTR) 358c7d4d259SMartin Schwidefsky : "cc", "memory"); 359c7d4d259SMartin Schwidefsky 360c7d4d259SMartin Schwidefsky return src_len - r3; 361c7d4d259SMartin Schwidefsky } 362c7d4d259SMartin Schwidefsky 363c7d4d259SMartin Schwidefsky /** 364c7d4d259SMartin Schwidefsky * cpacf_ppno() - executes the PPNO (PERFORM PSEUDORANDOM NUMBER OPERATION) 365c7d4d259SMartin Schwidefsky * instruction 366c7d4d259SMartin Schwidefsky * @func: the function code passed to PPNO; see CPACF_PPNO_xxx defines 367c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 368c7d4d259SMartin Schwidefsky * @dest: address of destination memory area 369c7d4d259SMartin Schwidefsky * @dest_len: size of destination memory area in bytes 370c7d4d259SMartin Schwidefsky * @seed: address of seed data 371c7d4d259SMartin Schwidefsky * @seed_len: size of seed data in bytes 372c7d4d259SMartin Schwidefsky */ 3730177db01SMartin Schwidefsky static inline void cpacf_ppno(unsigned long func, void *param, 374c7d4d259SMartin Schwidefsky u8 *dest, long dest_len, 375c7d4d259SMartin Schwidefsky const u8 *seed, long seed_len) 376c7d4d259SMartin Schwidefsky { 377c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 378c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 379c7d4d259SMartin Schwidefsky register unsigned long r2 asm("2") = (unsigned long) dest; 380c7d4d259SMartin Schwidefsky register unsigned long r3 asm("3") = (unsigned long) dest_len; 381c7d4d259SMartin Schwidefsky register unsigned long r4 asm("4") = (unsigned long) seed; 382c7d4d259SMartin Schwidefsky register unsigned long r5 asm("5") = (unsigned long) seed_len; 383c7d4d259SMartin Schwidefsky 384c7d4d259SMartin Schwidefsky asm volatile ( 385c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,%[dst],%[seed]\n" 386c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 387c7d4d259SMartin Schwidefsky : [dst] "+a" (r2), [dlen] "+d" (r3) 388c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), 389c7d4d259SMartin Schwidefsky [seed] "a" (r4), [slen] "d" (r5), [opc] "i" (CPACF_PPNO) 390c7d4d259SMartin Schwidefsky : "cc", "memory"); 391c7d4d259SMartin Schwidefsky } 392c7d4d259SMartin Schwidefsky 393c7d4d259SMartin Schwidefsky /** 394c7d4d259SMartin Schwidefsky * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION) 395c7d4d259SMartin Schwidefsky * instruction 396c7d4d259SMartin Schwidefsky * @func: the function code passed to PCC; see CPACF_KM_xxx defines 397c7d4d259SMartin Schwidefsky * @param: address of parameter block; see POP for details on each func 398c7d4d259SMartin Schwidefsky */ 3990177db01SMartin Schwidefsky static inline void cpacf_pcc(unsigned long func, void *param) 400c7d4d259SMartin Schwidefsky { 401c7d4d259SMartin Schwidefsky register unsigned long r0 asm("0") = (unsigned long) func; 402c7d4d259SMartin Schwidefsky register unsigned long r1 asm("1") = (unsigned long) param; 403c7d4d259SMartin Schwidefsky 404c7d4d259SMartin Schwidefsky asm volatile( 405c7d4d259SMartin Schwidefsky "0: .insn rre,%[opc] << 16,0,0\n" /* PCC opcode */ 406c7d4d259SMartin Schwidefsky " brc 1,0b\n" /* handle partial completion */ 407c7d4d259SMartin Schwidefsky : 408c7d4d259SMartin Schwidefsky : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCC) 409c7d4d259SMartin Schwidefsky : "cc", "memory"); 410c7d4d259SMartin Schwidefsky } 411c7d4d259SMartin Schwidefsky 412*77606708SHarald Freudenberger /** 413*77606708SHarald Freudenberger * cpacf_pckmo() - executes the PCKMO (PERFORM CRYPTOGRAPHIC KEY 414*77606708SHarald Freudenberger * MANAGEMENT) instruction 415*77606708SHarald Freudenberger * @func: the function code passed to PCKMO; see CPACF_PCKMO_xxx defines 416*77606708SHarald Freudenberger * @param: address of parameter block; see POP for details on each func 417*77606708SHarald Freudenberger * 418*77606708SHarald Freudenberger * Returns 0. 419*77606708SHarald Freudenberger */ 420*77606708SHarald Freudenberger static inline void cpacf_pckmo(long func, void *param) 421*77606708SHarald Freudenberger { 422*77606708SHarald Freudenberger register unsigned long r0 asm("0") = (unsigned long) func; 423*77606708SHarald Freudenberger register unsigned long r1 asm("1") = (unsigned long) param; 424*77606708SHarald Freudenberger 425*77606708SHarald Freudenberger asm volatile( 426*77606708SHarald Freudenberger " .insn rre,%[opc] << 16,0,0\n" /* PCKMO opcode */ 427*77606708SHarald Freudenberger : 428*77606708SHarald Freudenberger : [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCKMO) 429*77606708SHarald Freudenberger : "cc", "memory"); 430*77606708SHarald Freudenberger } 431*77606708SHarald Freudenberger 432c7d4d259SMartin Schwidefsky #endif /* _ASM_S390_CPACF_H */ 433