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/* $OpenBSD: ppccap.c,v 1.6 2014/07/17 23:48:24 deraadt Exp $ */
#include <sys/types.h>
#include <sys/sysctl.h>
#include <machine/cpu.h>
#include <unistd.h>
#include <crypto.h>
#include <openssl/bn.h>
#ifdef unused
#define PPC_FPU64 (1<<0)
#define PPC_ALTIVEC (1<<1)
static int OPENSSL_ppccap_P = 0;
#endif
#ifdef OPENSSL_BN_ASM_MONT
extern int bn_mul_mont_int(BN_ULONG *, const BN_ULONG *, const BN_ULONG *,
const BN_ULONG *, const BN_ULONG *, int);
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)
{
return bn_mul_mont_int(rp, ap, bp, np, n0, num);
}
#endif
#ifdef unused
void OPENSSL_cpuid_setup(void) __attribute__((constructor));
void
OPENSSL_cpuid_setup(void)
{
static const int mib[2] = { CTL_MACHDEP, CPU_ALTIVEC };
static int trigger = 0;
int altivec = 0;
size_t size;
if (trigger)
return;
trigger = 1;
size = sizeof altivec;
if (sysctl(mib, 2, &altivec, &size, NULL, 0) != -1) {
if (altivec != 0)
OPENSSL_ppccap_P |= PPC_ALTIVEC;
}
}
#endif
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