+/*
+ * Copyright 2009-2022 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
#include <stdio.h>
#include <stdlib.h>
#include <string.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
+#if defined(__APPLE__) && defined(__MACH__)
+# include <sys/types.h>
+# include <sys/sysctl.h>
+#endif
#include <openssl/crypto.h>
-#include <openssl/bn.h>
-
-#include "ppc_arch.h"
+#include "internal/cryptlib.h"
+#include "crypto/ppc_arch.h"
unsigned int OPENSSL_ppccap_P = 0;
static sigset_t all_masked;
-#ifdef OPENSSL_BN_ASM_MONT
-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)
+static sigjmp_buf ill_jmp;
+static void ill_handler(int sig)
{
- int bn_mul_mont_fpu64(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);
+ siglongjmp(ill_jmp, sig);
+}
- if (sizeof(size_t) == 4) {
-# if 1 || (defined(__APPLE__) && defined(__MACH__))
- if (num >= 8 && (num & 3) == 0 && (OPENSSL_ppccap_P & PPC_FPU64))
- return bn_mul_mont_fpu64(rp, ap, bp, np, n0, num);
-# else
- /*
- * boundary of 32 was experimentally determined on Linux 2.6.22,
- * might have to be adjusted on AIX...
- */
- if (num >= 32 && (num & 3) == 0 && (OPENSSL_ppccap_P & PPC_FPU64)) {
- sigset_t oset;
- int ret;
-
- sigprocmask(SIG_SETMASK, &all_masked, &oset);
- ret = bn_mul_mont_fpu64(rp, ap, bp, np, n0, num);
- sigprocmask(SIG_SETMASK, &oset, NULL);
-
- return ret;
- }
-# endif
- } else if ((OPENSSL_ppccap_P & PPC_FPU64))
- /*
- * this is a "must" on POWER6, but run-time detection is not
- * implemented yet...
- */
- return bn_mul_mont_fpu64(rp, ap, bp, np, n0, num);
-
- return bn_mul_mont_int(rp, ap, bp, np, n0, num);
+void OPENSSL_fpu_probe(void);
+void OPENSSL_ppc64_probe(void);
+void OPENSSL_altivec_probe(void);
+void OPENSSL_crypto207_probe(void);
+void OPENSSL_madd300_probe(void);
+void OPENSSL_brd31_probe(void);
+
+long OPENSSL_rdtsc_mftb(void);
+long OPENSSL_rdtsc_mfspr268(void);
+
+uint32_t OPENSSL_rdtsc(void)
+{
+ if (OPENSSL_ppccap_P & PPC_MFTB)
+ return OPENSSL_rdtsc_mftb();
+ else if (OPENSSL_ppccap_P & PPC_MFSPR268)
+ return OPENSSL_rdtsc_mfspr268();
+ else
+ return 0;
}
-#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)
+size_t OPENSSL_instrument_bus_mftb(unsigned int *, size_t);
+size_t OPENSSL_instrument_bus_mfspr268(unsigned int *, size_t);
+
+size_t OPENSSL_instrument_bus(unsigned int *out, size_t cnt)
{
- OPENSSL_ppccap_P & PPC_CRYPTO207 ? sha256_block_p8(ctx, inp, len) :
- sha256_block_ppc(ctx, inp, len);
+ if (OPENSSL_ppccap_P & PPC_MFTB)
+ return OPENSSL_instrument_bus_mftb(out, cnt);
+ else if (OPENSSL_ppccap_P & PPC_MFSPR268)
+ return OPENSSL_instrument_bus_mfspr268(out, cnt);
+ else
+ return 0;
}
-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)
+size_t OPENSSL_instrument_bus2_mftb(unsigned int *, size_t, size_t);
+size_t OPENSSL_instrument_bus2_mfspr268(unsigned int *, size_t, size_t);
+
+size_t OPENSSL_instrument_bus2(unsigned int *out, size_t cnt, size_t max)
{
- OPENSSL_ppccap_P & PPC_CRYPTO207 ? sha512_block_p8(ctx, inp, len) :
- sha512_block_ppc(ctx, inp, len);
+ if (OPENSSL_ppccap_P & PPC_MFTB)
+ return OPENSSL_instrument_bus2_mftb(out, cnt, max);
+ else if (OPENSSL_ppccap_P & PPC_MFSPR268)
+ return OPENSSL_instrument_bus2_mfspr268(out, cnt, max);
+ else
+ return 0;
}
-static sigjmp_buf ill_jmp;
-static void ill_handler(int sig)
+#if defined(__GLIBC__) && defined(__GLIBC_PREREQ)
+# if __GLIBC_PREREQ(2, 16)
+# include <sys/auxv.h>
+# define OSSL_IMPLEMENT_GETAUXVAL
+# elif defined(__ANDROID_API__)
+/* see https://developer.android.google.cn/ndk/guides/cpu-features */
+# if __ANDROID_API__ >= 18
+# include <sys/auxv.h>
+# define OSSL_IMPLEMENT_GETAUXVAL
+# endif
+# endif
+#endif
+
+#if defined(__FreeBSD__)
+# include <sys/param.h>
+# if __FreeBSD_version >= 1200000
+# include <sys/auxv.h>
+# define OSSL_IMPLEMENT_GETAUXVAL
+
+static unsigned long getauxval(unsigned long key)
{
- siglongjmp(ill_jmp, sig);
+ unsigned long val = 0ul;
+
+ if (elf_aux_info((int)key, &val, sizeof(val)) != 0)
+ return 0ul;
+
+ return val;
}
+# endif
+#endif
-void OPENSSL_ppc64_probe(void);
-void OPENSSL_altivec_probe(void);
-void OPENSSL_crypto207_probe(void);
+/* I wish <sys/auxv.h> was universally available */
+#ifndef AT_HWCAP
+# define AT_HWCAP 16 /* AT_HWCAP */
+#endif
+#define HWCAP_PPC64 (1U << 30)
+#define HWCAP_ALTIVEC (1U << 28)
+#define HWCAP_FPU (1U << 27)
+#define HWCAP_POWER6_EXT (1U << 9)
+#define HWCAP_VSX (1U << 7)
+#ifndef AT_HWCAP2
+# define AT_HWCAP2 26 /* AT_HWCAP2 */
+#endif
+#define HWCAP_VEC_CRYPTO (1U << 25)
+#define HWCAP_ARCH_3_00 (1U << 23)
+#define HWCAP_ARCH_3_1 (1U << 18)
+
+# if defined(__GNUC__) && __GNUC__>=2
+__attribute__ ((constructor))
+# endif
void OPENSSL_cpuid_setup(void)
{
char *e;
return;
trigger = 1;
- 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);
-
if ((e = getenv("OPENSSL_ppccap"))) {
OPENSSL_ppccap_P = strtoul(e, NULL, 0);
return;
OPENSSL_ppccap_P = 0;
#if defined(_AIX)
+ OPENSSL_ppccap_P |= PPC_FPU;
+
if (sizeof(size_t) == 4) {
struct utsname uts;
# if defined(_SC_AIX_KERNEL_BITMODE)
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 (__power_set(0x1U<<14)) /* POWER6 */
+ OPENSSL_ppccap_P |= PPC_FPU64;
+ }
+
+ 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;
+
+ if (__power_set(0xffffffffU<<17)) /* POWER9 and later */
+ OPENSSL_ppccap_P |= PPC_MADD300;
+
+ if (__power_set(0xffffffffU<<18)) /* POWER10 and later */
+ OPENSSL_ppccap_P |= PPC_BRD31;
+
+ return;
+# endif
+#endif
+
+#if defined(__APPLE__) && defined(__MACH__)
+ OPENSSL_ppccap_P |= PPC_FPU;
+
+ {
+ int val;
+ size_t len = sizeof(val);
+
+ if (sysctlbyname("hw.optional.64bitops", &val, &len, NULL, 0) == 0) {
+ if (val)
+ OPENSSL_ppccap_P |= PPC_FPU64;
+ }
+
+ len = sizeof(val);
+ if (sysctlbyname("hw.optional.altivec", &val, &len, NULL, 0) == 0) {
+ if (val)
+ OPENSSL_ppccap_P |= PPC_ALTIVEC;
+ }
+
+ return;
+ }
+#endif
+
+#ifdef OSSL_IMPLEMENT_GETAUXVAL
+ {
+ unsigned long hwcap = getauxval(AT_HWCAP);
+ unsigned long hwcap2 = getauxval(AT_HWCAP2);
+
+ if (hwcap & HWCAP_FPU) {
+ OPENSSL_ppccap_P |= PPC_FPU;
+
+ if (sizeof(size_t) == 4) {
+ /* In 32-bit case PPC_FPU64 is always fastest [if option] */
+ if (hwcap & HWCAP_PPC64)
+ OPENSSL_ppccap_P |= PPC_FPU64;
+ } else {
+ /* In 64-bit case PPC_FPU64 is fastest only on POWER6 */
+ if (hwcap & HWCAP_POWER6_EXT)
+ OPENSSL_ppccap_P |= PPC_FPU64;
+ }
+ }
+
+ if (hwcap & HWCAP_ALTIVEC) {
+ OPENSSL_ppccap_P |= PPC_ALTIVEC;
+
+ if ((hwcap & HWCAP_VSX) && (hwcap2 & HWCAP_VEC_CRYPTO))
+ OPENSSL_ppccap_P |= PPC_CRYPTO207;
+ }
+
+ if (hwcap2 & HWCAP_ARCH_3_00) {
+ OPENSSL_ppccap_P |= PPC_MADD300;
+ }
+
+ if (hwcap2 & HWCAP_ARCH_3_1) {
+ OPENSSL_ppccap_P |= PPC_BRD31;
+ }
+ }
+#endif
+
+ 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);
memset(&ill_act, 0, sizeof(ill_act));
ill_act.sa_handler = ill_handler;
sigprocmask(SIG_SETMASK, &ill_act.sa_mask, &oset);
sigaction(SIGILL, &ill_act, &ill_oact);
- if (sizeof(size_t) == 4) {
-#ifdef __linux
- struct utsname uts;
- if (uname(&uts) == 0 && strcmp(uts.machine, "ppc64") == 0)
-#endif
- if (sigsetjmp(ill_jmp, 1) == 0) {
- OPENSSL_ppc64_probe();
- OPENSSL_ppccap_P |= PPC_FPU64;
- }
- } else {
- /*
- * Wanted code detecting POWER6 CPU and setting PPC_FPU64
- */
+#ifndef OSSL_IMPLEMENT_GETAUXVAL
+ if (sigsetjmp(ill_jmp, 1) == 0) {
+ OPENSSL_fpu_probe();
+ OPENSSL_ppccap_P |= PPC_FPU;
+
+ if (sizeof(size_t) == 4) {
+# ifdef __linux
+ struct utsname uts;
+ if (uname(&uts) == 0 && strcmp(uts.machine, "ppc64") == 0)
+# endif
+ if (sigsetjmp(ill_jmp, 1) == 0) {
+ OPENSSL_ppc64_probe();
+ OPENSSL_ppccap_P |= PPC_FPU64;
+ }
+ } else {
+ /*
+ * Wanted code detecting POWER6 CPU and setting PPC_FPU64
+ */
+ }
}
if (sigsetjmp(ill_jmp, 1) == 0) {
}
}
+ if (sigsetjmp(ill_jmp, 1) == 0) {
+ OPENSSL_madd300_probe();
+ OPENSSL_ppccap_P |= PPC_MADD300;
+ }
+#endif
+
+ if (sigsetjmp(ill_jmp, 1) == 0) {
+ OPENSSL_rdtsc_mftb();
+ OPENSSL_ppccap_P |= PPC_MFTB;
+ } else if (sigsetjmp(ill_jmp, 1) == 0) {
+ OPENSSL_rdtsc_mfspr268();
+ OPENSSL_ppccap_P |= PPC_MFSPR268;
+ }
+
sigaction(SIGILL, &ill_oact, NULL);
sigprocmask(SIG_SETMASK, &oset, NULL);
}
projects / openssl.git / blobdiff