diff options
| author | Andy Polyakov <appro@openssl.org> | 2012-11-17 10:34:11 +0000 |
|---|---|---|
| committer | Andy Polyakov <appro@openssl.org> | 2012-11-17 10:34:11 +0000 |
| commit | 68c06bf6b2627021cb7f26d0ab0baee1cd2fad65 (patch) | |
| tree | 8b8b55217405694074359d34b151cc8976345582 /crypto/sparcv9cap.c | |
| parent | c7b7984ac914d33590dfe9e46e35336f5e4f723f (diff) | |
Support for SPARC T4 MONT[MUL|SQR] instructions.
Submitted by: David Miller, Andy Polyakov
Diffstat (limited to 'crypto/sparcv9cap.c')
| -rw-r--r-- | crypto/sparcv9cap.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/crypto/sparcv9cap.c b/crypto/sparcv9cap.c index b6bdb8704b..38f33bee75 100644 --- a/crypto/sparcv9cap.c +++ b/crypto/sparcv9cap.c @@ -4,6 +4,7 @@ #include <setjmp.h> #include <signal.h> #include <sys/time.h> +#include <unistd.h> #include <openssl/bn.h> #include "sparc_arch.h" @@ -21,6 +22,25 @@ int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_U if (!(num&1) && num>=6) { + if ((num&15)==0 && num<=64 && + (OPENSSL_sparcv9cap_P[1]&(CFR_MONTMUL|CFR_MONTSQR))== + (CFR_MONTMUL|CFR_MONTSQR)) + { + typedef int (*bn_mul_mont_f)(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0); + int bn_mul_mont_t4_8(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0); + int bn_mul_mont_t4_16(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0); + int bn_mul_mont_t4_24(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0); + int bn_mul_mont_t4_32(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0); + static const bn_mul_mont_f funcs[4] = { + bn_mul_mont_t4_8, bn_mul_mont_t4_16, + bn_mul_mont_t4_24, bn_mul_mont_t4_32 }; + bn_mul_mont_f worker = funcs[num/16-1]; + + if ((*worker)(rp,ap,bp,np,n0)) return 1; + /* retry once and fall back */ + if ((*worker)(rp,ap,bp,np,n0)) return 1; + return bn_mul_mont_vis3(rp,ap,bp,np,n0,num); + } if ((OPENSSL_sparcv9cap_P[0]&SPARCV9_VIS3)) return bn_mul_mont_vis3(rp,ap,bp,np,n0,num); else if (num>=8 && @@ -289,6 +309,18 @@ void OPENSSL_cpuid_setup(void) sigaction(SIGILL,&ill_oact,NULL); sigprocmask(SIG_SETMASK,&oset,NULL); + + if (sizeof(size_t)==8) + OPENSSL_sparcv9cap_P[0] |= SPARCV9_64BIT_STACK; +#ifdef __linux + else + { + int ret = syscall(340); + + if (ret>=0 && ret&1) + OPENSSL_sparcv9cap_P[0] |= SPARCV9_64BIT_STACK; + } +#endif } #endif |