diff options
Diffstat (limited to 'crypto/ppccap.c')
| -rw-r--r-- | crypto/ppccap.c | 75 |
1 files changed, 74 insertions, 1 deletions
diff --git a/crypto/ppccap.c b/crypto/ppccap.c index ab89ccaa12..675630e41b 100644 --- a/crypto/ppccap.c +++ b/crypto/ppccap.c @@ -3,13 +3,24 @@ #include <string.h> #include <setjmp.h> #include <signal.h> +#include <unistd.h> +#if defined(__linux) || defined(_AIX) +# include <sys/utsname.h> +#endif +#if defined(_AIX53) /* defined even on post-5.3 */ +# include <sys/systemcfg.h> +# if !defined(__power_set) +# define __power_set(a) (_system_configuration.implementation & (a)) +# endif +#endif #include <crypto.h> #include <openssl/bn.h> #define PPC_FPU64 (1<<0) #define PPC_ALTIVEC (1<<1) +#define PPC_CRYPTO207 (1<<2) -static int OPENSSL_ppccap_P = 0; +int OPENSSL_ppccap_P = 0; static sigset_t all_masked; @@ -49,10 +60,28 @@ int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_U } #endif +void sha256_block_p8(void *ctx, const void *inp, size_t len); +void sha256_block_ppc(void *ctx, const void *inp, size_t len); +void sha256_block_data_order(void *ctx, const void *inp, size_t len) +{ + OPENSSL_ppccap_P & PPC_CRYPTO207 ? sha256_block_p8(ctx, inp, len) : + sha256_block_ppc(ctx, inp, len); +} + +void sha512_block_p8(void *ctx, const void *inp, size_t len); +void sha512_block_ppc(void *ctx, const void *inp, size_t len); +void sha512_block_data_order(void *ctx, const void *inp, size_t len) +{ + OPENSSL_ppccap_P & PPC_CRYPTO207 ? sha512_block_p8(ctx, inp, len) : + sha512_block_ppc(ctx, inp, len); +} + static sigjmp_buf ill_jmp; static void ill_handler (int sig) { siglongjmp(ill_jmp,sig); } void OPENSSL_ppc64_probe(void); +void OPENSSL_altivec_probe(void); +void OPENSSL_crypto207_probe(void); void OPENSSL_cpuid_setup(void) { @@ -82,6 +111,45 @@ void OPENSSL_cpuid_setup(void) OPENSSL_ppccap_P = 0; +#if defined(_AIX) + if (sizeof(size_t) == 4) { + struct utsname uts; +# if defined(_SC_AIX_KERNEL_BITMODE) + if (sysconf(_SC_AIX_KERNEL_BITMODE) != 64) + return; +# endif + if (uname(&uts) != 0 || atoi(uts.version) < 6) + return; + } + +# if defined(__power_set) + /* + * Value used in __power_set is a single-bit 1<<n one denoting + * specific processor class. Incidentally 0xffffffff<<n can be + * used to denote specific processor and its successors. + */ + if (sizeof(size_t) == 4) { + /* In 32-bit case PPC_FPU64 is always fastest [if option] */ + if (__power_set(0xffffffffU<<13)) /* POWER5 and later */ + OPENSSL_ppccap_P |= PPC_FPU64; + } else { + /* In 64-bit case PPC_FPU64 is fastest only on POWER6 */ +# if 0 /* to keep compatibility with previous validations */ + if (__power_set(0x1U<<14)) /* POWER6 */ + OPENSSL_ppccap_P |= PPC_FPU64; +# endif + } + + if (__power_set(0xffffffffU<<14)) /* POWER6 and later */ + OPENSSL_ppccap_P |= PPC_ALTIVEC; + + if (__power_set(0xffffffffU<<16)) /* POWER8 and later */ + OPENSSL_ppccap_P |= PPC_CRYPTO207; + + return; +# endif +#endif + memset(&ill_act,0,sizeof(ill_act)); ill_act.sa_handler = ill_handler; ill_act.sa_mask = all_masked; @@ -108,6 +176,11 @@ void OPENSSL_cpuid_setup(void) { OPENSSL_altivec_probe(); OPENSSL_ppccap_P |= PPC_ALTIVEC; + if (sigsetjmp(ill_jmp, 1) == 0) + { + OPENSSL_crypto207_probe(); + OPENSSL_ppccap_P |= PPC_CRYPTO207; + } } sigaction (SIGILL,&ill_oact,NULL); |