diff options
Diffstat (limited to 'crypto/sparcv9cap.c')
| -rw-r--r-- | crypto/sparcv9cap.c | 157 |
1 files changed, 129 insertions, 28 deletions
diff --git a/crypto/sparcv9cap.c b/crypto/sparcv9cap.c index d9f986f6b9684..8bf2846929b17 100644 --- a/crypto/sparcv9cap.c +++ b/crypto/sparcv9cap.c @@ -4,30 +4,68 @@ #include <setjmp.h> #include <signal.h> #include <sys/time.h> +#include <unistd.h> #include <openssl/bn.h> -#define SPARCV9_TICK_PRIVILEGED (1<<0) -#define SPARCV9_PREFER_FPU (1<<1) -#define SPARCV9_VIS1 (1<<2) -#define SPARCV9_VIS2 (1<<3) /* reserved */ -#define SPARCV9_FMADD (1<<4) /* reserved for SPARC64 V */ +#include "sparc_arch.h" -static int OPENSSL_sparcv9cap_P = SPARCV9_TICK_PRIVILEGED; +#if defined(__GNUC__) && defined(__linux) +__attribute__ ((visibility("hidden"))) +#endif +unsigned int OPENSSL_sparcv9cap_P[2] = { SPARCV9_TICK_PRIVILEGED, 0 }; int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np, const BN_ULONG *n0, int num) { + int bn_mul_mont_vis3(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, + const BN_ULONG *np, const BN_ULONG *n0, int num); int bn_mul_mont_fpu(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np, const BN_ULONG *n0, int num); int bn_mul_mont_int(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np, const BN_ULONG *n0, int num); - if (num >= 8 && !(num & 1) && - (OPENSSL_sparcv9cap_P & (SPARCV9_PREFER_FPU | SPARCV9_VIS1)) == - (SPARCV9_PREFER_FPU | SPARCV9_VIS1)) - return bn_mul_mont_fpu(rp, ap, bp, np, n0, num); - else - return bn_mul_mont_int(rp, ap, bp, np, n0, num); + 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 && + (OPENSSL_sparcv9cap_P[0] & + (SPARCV9_PREFER_FPU | SPARCV9_VIS1)) == + (SPARCV9_PREFER_FPU | SPARCV9_VIS1)) + return bn_mul_mont_fpu(rp, ap, bp, np, n0, num); + } + return bn_mul_mont_int(rp, ap, bp, np, n0, num); } unsigned long _sparcv9_rdtick(void); @@ -35,10 +73,15 @@ void _sparcv9_vis1_probe(void); unsigned long _sparcv9_vis1_instrument(void); void _sparcv9_vis2_probe(void); void _sparcv9_fmadd_probe(void); +unsigned long _sparcv9_rdcfr(void); +void _sparcv9_vis3_probe(void); +unsigned long _sparcv9_random(void); +size_t _sparcv9_vis1_instrument_bus(unsigned int *, size_t); +size_t _sparcv9_vis1_instrument_bus2(unsigned int *, size_t, size_t); unsigned long OPENSSL_rdtsc(void) { - if (OPENSSL_sparcv9cap_P & SPARCV9_TICK_PRIVILEGED) + if (OPENSSL_sparcv9cap_P[0] & SPARCV9_TICK_PRIVILEGED) #if defined(__sun) && defined(__SVR4) return gethrtime(); #else @@ -48,6 +91,24 @@ unsigned long OPENSSL_rdtsc(void) return _sparcv9_rdtick(); } +size_t OPENSSL_instrument_bus(unsigned int *out, size_t cnt) +{ + if ((OPENSSL_sparcv9cap_P[0] & (SPARCV9_TICK_PRIVILEGED | SPARCV9_BLK)) == + SPARCV9_BLK) + return _sparcv9_vis1_instrument_bus(out, cnt); + else + return 0; +} + +size_t OPENSSL_instrument_bus2(unsigned int *out, size_t cnt, size_t max) +{ + if ((OPENSSL_sparcv9cap_P[0] & (SPARCV9_TICK_PRIVILEGED | SPARCV9_BLK)) == + SPARCV9_BLK) + return _sparcv9_vis1_instrument_bus2(out, cnt, max); + else + return 0; +} + #if 0 && defined(__sun) && defined(__SVR4) /* * This code path is disabled, because of incompatibility of libdevinfo.so.1 @@ -74,17 +135,17 @@ static int walk_nodename(di_node_t node, di_node_name_t di_node_name) if (!strcmp(name, "SUNW,UltraSPARC") || /* covers II,III,IV */ !strncmp(name, "SUNW,UltraSPARC-I", 17)) { - OPENSSL_sparcv9cap_P |= SPARCV9_PREFER_FPU | SPARCV9_VIS1; + OPENSSL_sparcv9cap_P[0] |= SPARCV9_PREFER_FPU | SPARCV9_VIS1; /* %tick is privileged only on UltraSPARC-I/II, but not IIe */ if (name[14] != '\0' && name[17] != '\0' && name[18] != '\0') - OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED; + OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED; return DI_WALK_TERMINATE; } /* This is expected to catch remaining UltraSPARCs, such as T1 */ else if (!strncmp(name, "SUNW,UltraSPARC", 15)) { - OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED; + OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED; return DI_WALK_TERMINATE; } @@ -103,22 +164,22 @@ void OPENSSL_cpuid_setup(void) trigger = 1; if ((e = getenv("OPENSSL_sparcv9cap"))) { - OPENSSL_sparcv9cap_P = strtoul(e, NULL, 0); + OPENSSL_sparcv9cap_P[0] = strtoul(e, NULL, 0); return; } if (sysinfo(SI_MACHINE, si, sizeof(si)) > 0) { if (strcmp(si, "sun4v")) /* FPU is preferred for all CPUs, but US-T1/2 */ - OPENSSL_sparcv9cap_P |= SPARCV9_PREFER_FPU; + OPENSSL_sparcv9cap_P[0] |= SPARCV9_PREFER_FPU; } if (sysinfo(SI_ISALIST, si, sizeof(si)) > 0) { if (strstr(si, "+vis")) - OPENSSL_sparcv9cap_P |= SPARCV9_VIS1; + OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS1 | SPARCV9_BLK; if (strstr(si, "+vis2")) { - OPENSSL_sparcv9cap_P |= SPARCV9_VIS2; - OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED; + OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS2; + OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED; return; } } @@ -188,12 +249,14 @@ void OPENSSL_cpuid_setup(void) trigger = 1; if ((e = getenv("OPENSSL_sparcv9cap"))) { - OPENSSL_sparcv9cap_P = strtoul(e, NULL, 0); + OPENSSL_sparcv9cap_P[0] = strtoul(e, NULL, 0); + if ((e = strchr(e, ':'))) + OPENSSL_sparcv9cap_P[1] = strtoul(e + 1, NULL, 0); return; } /* Initial value, fits UltraSPARC-I&II... */ - OPENSSL_sparcv9cap_P = SPARCV9_PREFER_FPU | SPARCV9_TICK_PRIVILEGED; + OPENSSL_sparcv9cap_P[0] = SPARCV9_PREFER_FPU | SPARCV9_TICK_PRIVILEGED; sigfillset(&all_masked); sigdelset(&all_masked, SIGILL); @@ -216,30 +279,68 @@ void OPENSSL_cpuid_setup(void) if (sigsetjmp(common_jmp, 1) == 0) { _sparcv9_rdtick(); - OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED; + OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED; } if (sigsetjmp(common_jmp, 1) == 0) { _sparcv9_vis1_probe(); - OPENSSL_sparcv9cap_P |= SPARCV9_VIS1; + OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS1 | SPARCV9_BLK; /* detect UltraSPARC-Tx, see sparccpud.S for details... */ if (_sparcv9_vis1_instrument() >= 12) - OPENSSL_sparcv9cap_P &= ~(SPARCV9_VIS1 | SPARCV9_PREFER_FPU); + OPENSSL_sparcv9cap_P[0] &= ~(SPARCV9_VIS1 | SPARCV9_PREFER_FPU); else { _sparcv9_vis2_probe(); - OPENSSL_sparcv9cap_P |= SPARCV9_VIS2; + OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS2; } } if (sigsetjmp(common_jmp, 1) == 0) { _sparcv9_fmadd_probe(); - OPENSSL_sparcv9cap_P |= SPARCV9_FMADD; + OPENSSL_sparcv9cap_P[0] |= SPARCV9_FMADD; + } + + /* + * VIS3 flag is tested independently from VIS1, unlike VIS2 that is, + * because VIS3 defines even integer instructions. + */ + if (sigsetjmp(common_jmp, 1) == 0) { + _sparcv9_vis3_probe(); + OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS3; + } +# if 0 /* was planned at some point but never + * implemented in hardware */ + if (sigsetjmp(common_jmp, 1) == 0) { + (void)_sparcv9_random(); + OPENSSL_sparcv9cap_P[0] |= SPARCV9_RANDOM; + } +# endif + + /* + * In wait for better solution _sparcv9_rdcfr is masked by + * VIS3 flag, because it goes to uninterruptable endless + * loop on UltraSPARC II running Solaris. Things might be + * different on Linux... + */ + if ((OPENSSL_sparcv9cap_P[0] & SPARCV9_VIS3) && + sigsetjmp(common_jmp, 1) == 0) { + OPENSSL_sparcv9cap_P[1] = (unsigned int)_sparcv9_rdcfr(); } sigaction(SIGBUS, &bus_oact, NULL); 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 |