1 /* Copyright (c) 2016, Google Inc. 2 * 3 * Permission to use, copy, modify, and/or distribute this software for any 4 * purpose with or without fee is hereby granted, provided that the above 5 * copyright notice and this permission notice appear in all copies. 6 * 7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION 12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ 14 15 #include <openssl/cpu.h> 16 17 #if defined(OPENSSL_PPC64LE) 18 19 #include <sys/auxv.h> 20 21 #include "internal.h" 22 23 24 #if !defined(PPC_FEATURE2_HAS_VCRYPTO) 25 /* PPC_FEATURE2_HAS_VCRYPTO was taken from section 4.1.2.3 of the OpenPOWER 26 * ABI for Linux Supplement. */ 27 #define PPC_FEATURE2_HAS_VCRYPTO 0x02000000 28 #endif 29 30 static unsigned long g_ppc64le_hwcap2 = 0; 31 32 void OPENSSL_cpuid_setup(void) { 33 g_ppc64le_hwcap2 = getauxval(AT_HWCAP2); 34 } 35 36 int CRYPTO_is_PPC64LE_vcrypto_capable(void) { 37 return (g_ppc64le_hwcap2 & PPC_FEATURE2_HAS_VCRYPTO) != 0; 38 } 39 40 #endif /* OPENSSL_PPC64LE */ 41
