]>
git.ipfire.org Git - thirdparty/openssl.git/blob - crypto/ppccap.c
7 #if defined(__linux) || defined(_AIX)
8 # include <sys/utsname.h>
10 #if defined(__APPLE__) && defined(__MACH__)
11 # include <sys/types.h>
12 # include <sys/sysctl.h>
14 #include <openssl/crypto.h>
15 #include <openssl/bn.h>
19 unsigned int OPENSSL_ppccap_P
= 0;
21 static sigset_t all_masked
;
23 #ifdef OPENSSL_BN_ASM_MONT
24 int bn_mul_mont(BN_ULONG
*rp
, const BN_ULONG
*ap
, const BN_ULONG
*bp
,
25 const BN_ULONG
*np
, const BN_ULONG
*n0
, int num
)
27 int bn_mul_mont_fpu64(BN_ULONG
*rp
, const BN_ULONG
*ap
,
28 const BN_ULONG
*bp
, const BN_ULONG
*np
,
29 const BN_ULONG
*n0
, int num
);
30 int bn_mul_mont_int(BN_ULONG
*rp
, const BN_ULONG
*ap
, const BN_ULONG
*bp
,
31 const BN_ULONG
*np
, const BN_ULONG
*n0
, int num
);
33 if (sizeof(size_t) == 4) {
34 # if 1 || (defined(__APPLE__) && defined(__MACH__))
35 if (num
>= 8 && (num
& 3) == 0 && (OPENSSL_ppccap_P
& PPC_FPU64
))
36 return bn_mul_mont_fpu64(rp
, ap
, bp
, np
, n0
, num
);
39 * boundary of 32 was experimentally determined on Linux 2.6.22,
40 * might have to be adjusted on AIX...
42 if (num
>= 32 && (num
& 3) == 0 && (OPENSSL_ppccap_P
& PPC_FPU64
)) {
46 sigprocmask(SIG_SETMASK
, &all_masked
, &oset
);
47 ret
= bn_mul_mont_fpu64(rp
, ap
, bp
, np
, n0
, num
);
48 sigprocmask(SIG_SETMASK
, &oset
, NULL
);
53 } else if ((OPENSSL_ppccap_P
& PPC_FPU64
))
55 * this is a "must" on POWER6, but run-time detection is not
58 return bn_mul_mont_fpu64(rp
, ap
, bp
, np
, n0
, num
);
60 return bn_mul_mont_int(rp
, ap
, bp
, np
, n0
, num
);
64 void sha256_block_p8(void *ctx
, const void *inp
, size_t len
);
65 void sha256_block_ppc(void *ctx
, const void *inp
, size_t len
);
66 void sha256_block_data_order(void *ctx
, const void *inp
, size_t len
)
68 OPENSSL_ppccap_P
& PPC_CRYPTO207
? sha256_block_p8(ctx
, inp
, len
) :
69 sha256_block_ppc(ctx
, inp
, len
);
72 void sha512_block_p8(void *ctx
, const void *inp
, size_t len
);
73 void sha512_block_ppc(void *ctx
, const void *inp
, size_t len
);
74 void sha512_block_data_order(void *ctx
, const void *inp
, size_t len
)
76 OPENSSL_ppccap_P
& PPC_CRYPTO207
? sha512_block_p8(ctx
, inp
, len
) :
77 sha512_block_ppc(ctx
, inp
, len
);
80 static sigjmp_buf ill_jmp
;
81 static void ill_handler(int sig
)
83 siglongjmp(ill_jmp
, sig
);
86 void OPENSSL_ppc64_probe(void);
87 void OPENSSL_altivec_probe(void);
88 void OPENSSL_crypto207_probe(void);
90 void OPENSSL_cpuid_setup(void)
93 struct sigaction ill_oact
, ill_act
;
95 static int trigger
= 0;
101 sigfillset(&all_masked
);
102 sigdelset(&all_masked
, SIGILL
);
103 sigdelset(&all_masked
, SIGTRAP
);
105 sigdelset(&all_masked
, SIGEMT
);
107 sigdelset(&all_masked
, SIGFPE
);
108 sigdelset(&all_masked
, SIGBUS
);
109 sigdelset(&all_masked
, SIGSEGV
);
111 if ((e
= getenv("OPENSSL_ppccap"))) {
112 OPENSSL_ppccap_P
= strtoul(e
, NULL
, 0);
116 OPENSSL_ppccap_P
= 0;
119 if (sizeof(size_t) == 4) {
121 # if defined(_SC_AIX_KERNEL_BITMODE)
122 if (sysconf(_SC_AIX_KERNEL_BITMODE
) != 64)
125 if (uname(&uts
) != 0 || atoi(uts
.version
) < 6)
130 #if defined(__APPLE__) && defined(__MACH__)
133 size_t len
= sizeof(val
);
135 if (sysctlbyname("hw.optional.64bitops", &val
, &len
, NULL
, 0) == 0) {
137 OPENSSL_ppccap_P
|= PPC_FPU64
;
141 if (sysctlbyname("hw.optional.altivec", &val
, &len
, NULL
, 0) == 0) {
143 OPENSSL_ppccap_P
|= PPC_ALTIVEC
;
150 memset(&ill_act
, 0, sizeof(ill_act
));
151 ill_act
.sa_handler
= ill_handler
;
152 ill_act
.sa_mask
= all_masked
;
154 sigprocmask(SIG_SETMASK
, &ill_act
.sa_mask
, &oset
);
155 sigaction(SIGILL
, &ill_act
, &ill_oact
);
157 if (sizeof(size_t) == 4) {
160 if (uname(&uts
) == 0 && strcmp(uts
.machine
, "ppc64") == 0)
162 if (sigsetjmp(ill_jmp
, 1) == 0) {
163 OPENSSL_ppc64_probe();
164 OPENSSL_ppccap_P
|= PPC_FPU64
;
168 * Wanted code detecting POWER6 CPU and setting PPC_FPU64
172 if (sigsetjmp(ill_jmp
, 1) == 0) {
173 OPENSSL_altivec_probe();
174 OPENSSL_ppccap_P
|= PPC_ALTIVEC
;
175 if (sigsetjmp(ill_jmp
, 1) == 0) {
176 OPENSSL_crypto207_probe();
177 OPENSSL_ppccap_P
|= PPC_CRYPTO207
;
181 sigaction(SIGILL
, &ill_oact
, NULL
);
182 sigprocmask(SIG_SETMASK
, &oset
, NULL
);