X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fsparcv9cap.c;h=1731ef65f1ec7b8dc0ed15c43bcad3b4eb20ff24;hp=0e662ff1c85c1e1224a945c55b3909f992a84df2;hb=d7e404c27bba9384f346c28931c747bba880204a;hpb=f3c26535adda4ae14d826684e6c8073eeea5dce1 diff --git a/crypto/sparcv9cap.c b/crypto/sparcv9cap.c index 0e662ff1c8..1731ef65f1 100644 --- a/crypto/sparcv9cap.c +++ b/crypto/sparcv9cap.c @@ -1,154 +1,215 @@ #include #include #include +#include +#include #include +#include #include -#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 */ -static int OPENSSL_sparcv9cap_P=SPARCV9_TICK_PRIVILEGED; - -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_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 ((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); - } +#include "sparc_arch.h" -unsigned long OPENSSL_rdtsc(void) - { - unsigned long _sparcv9_rdtick(void); - - if (OPENSSL_sparcv9cap_P&SPARCV9_TICK_PRIVILEGED) -#if defined(__sun) && defined(__SVR4) - return gethrtime(); -#else - return 0; +#if defined(__GNUC__) && defined(__linux) +__attribute__ ((visibility("hidden"))) #endif - else - return _sparcv9_rdtick(); - } +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 & 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); +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[0] & SPARCV9_TICK_PRIVILEGED) #if defined(__sun) && defined(__SVR4) - -#include -#include -#include - -typedef di_node_t (*di_init_t)(const char *,uint_t); -typedef void (*di_fini_t)(di_node_t); -typedef char * (*di_node_name_t)(di_node_t); -typedef int (*di_walk_node_t)(di_node_t,uint_t,di_node_name_t,int (*)(di_node_t,di_node_name_t)); - -#define DLLINK(h,name) (name=(name##_t)dlsym((h),#name)) - -static int walk_nodename(di_node_t node, di_node_name_t di_node_name) - { - char *name = (*di_node_name)(node); - - /* This is expected to catch all UltraSPARC flavors prior T1 */ - if (!strcmp (name,"SUNW,UltraSPARC") || - !strncmp(name,"SUNW,UltraSPARC-I",17)) /* covers II,III,IV */ - { - OPENSSL_sparcv9cap_P |= 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; - - 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; - - return DI_WALK_TERMINATE; - } - - return DI_WALK_CONTINUE; - } - -void OPENSSL_cpuid_setup(void) - { - void *h; - char *e,si[256]; - static int trigger=0; - - if (trigger) return; - trigger=1; - - if ((e=getenv("OPENSSL_sparcv9cap"))) - { - OPENSSL_sparcv9cap_P=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; - } - - if (sysinfo(SI_ISALIST,si,sizeof(si))>0) - { - if (strstr(si,"+vis")) - OPENSSL_sparcv9cap_P |= SPARCV9_VIS1; - if (strstr(si,"+vis2")) - { - OPENSSL_sparcv9cap_P |= SPARCV9_VIS2; - OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED; - return; - } - } - - if ((h = dlopen("libdevinfo.so.1",RTLD_LAZY))) do - { - di_init_t di_init; - di_fini_t di_fini; - di_walk_node_t di_walk_node; - di_node_name_t di_node_name; - di_node_t root_node; - - if (!DLLINK(h,di_init)) break; - if (!DLLINK(h,di_fini)) break; - if (!DLLINK(h,di_walk_node)) break; - if (!DLLINK(h,di_node_name)) break; - - if ((root_node = (*di_init)("/",DINFOSUBTREE))!=DI_NODE_NIL) - { - (*di_walk_node)(root_node,DI_WALK_SIBFIRST, - di_node_name,walk_nodename); - (*di_fini)(root_node); - } - } while(0); - - if (h) dlclose(h); - } - + return gethrtime(); #else + return 0; +#endif + else + 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; +} + +static sigjmp_buf common_jmp; +static void common_handler(int sig) +{ + siglongjmp(common_jmp, sig); +} void OPENSSL_cpuid_setup(void) - { - char *e; - - if ((e=getenv("OPENSSL_sparcv9cap"))) - { - OPENSSL_sparcv9cap_P=strtoul(env,NULL,0); - return; - } - - /* For now we assume that the rest supports UltraSPARC-I* only */ - OPENSSL_sparcv9cap_P |= SPARCV9_PREFER_FPU|SPARCV9_VIS1; - } - -#endif +{ + char *e; + struct sigaction common_act, ill_oact, bus_oact; + sigset_t all_masked, oset; + static int trigger = 0; + + if (trigger) + return; + trigger = 1; + + if ((e = getenv("OPENSSL_sparcv9cap"))) { + 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[0] = SPARCV9_PREFER_FPU | SPARCV9_TICK_PRIVILEGED; + + sigfillset(&all_masked); + sigdelset(&all_masked, SIGILL); + sigdelset(&all_masked, SIGTRAP); +# ifdef SIGEMT + sigdelset(&all_masked, SIGEMT); +# endif + sigdelset(&all_masked, SIGFPE); + sigdelset(&all_masked, SIGBUS); + sigdelset(&all_masked, SIGSEGV); + sigprocmask(SIG_SETMASK, &all_masked, &oset); + + memset(&common_act, 0, sizeof(common_act)); + common_act.sa_handler = common_handler; + common_act.sa_mask = all_masked; + + sigaction(SIGILL, &common_act, &ill_oact); + sigaction(SIGBUS, &common_act, &bus_oact); /* T1 fails 16-bit ldda [on + * Linux] */ + + if (sigsetjmp(common_jmp, 1) == 0) { + _sparcv9_rdtick(); + OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED; + } + + if (sigsetjmp(common_jmp, 1) == 0) { + _sparcv9_vis1_probe(); + OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS1 | SPARCV9_BLK; + /* detect UltraSPARC-Tx, see sparccpud.S for details... */ + if (_sparcv9_vis1_instrument() >= 12) + OPENSSL_sparcv9cap_P[0] &= ~(SPARCV9_VIS1 | SPARCV9_PREFER_FPU); + else { + _sparcv9_vis2_probe(); + OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS2; + } + } + + if (sigsetjmp(common_jmp, 1) == 0) { + _sparcv9_fmadd_probe(); + 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; + } + + /* + * 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 +}