diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/x86/include/asm/archrandom.h')
| -rw-r--r-- | ANDROID_3.4.5/arch/x86/include/asm/archrandom.h | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/ANDROID_3.4.5/arch/x86/include/asm/archrandom.h b/ANDROID_3.4.5/arch/x86/include/asm/archrandom.h deleted file mode 100644 index 0d9ec770..00000000 --- a/ANDROID_3.4.5/arch/x86/include/asm/archrandom.h +++ /dev/null @@ -1,75 +0,0 @@ -/* - * This file is part of the Linux kernel. - * - * Copyright (c) 2011, Intel Corporation - * Authors: Fenghua Yu <fenghua.yu@intel.com>, - * H. Peter Anvin <hpa@linux.intel.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * - */ - -#ifndef ASM_X86_ARCHRANDOM_H -#define ASM_X86_ARCHRANDOM_H - -#include <asm/processor.h> -#include <asm/cpufeature.h> -#include <asm/alternative.h> -#include <asm/nops.h> - -#define RDRAND_RETRY_LOOPS 10 - -#define RDRAND_INT ".byte 0x0f,0xc7,0xf0" -#ifdef CONFIG_X86_64 -# define RDRAND_LONG ".byte 0x48,0x0f,0xc7,0xf0" -#else -# define RDRAND_LONG RDRAND_INT -#endif - -#ifdef CONFIG_ARCH_RANDOM - -#define GET_RANDOM(name, type, rdrand, nop) \ -static inline int name(type *v) \ -{ \ - int ok; \ - alternative_io("movl $0, %0\n\t" \ - nop, \ - "\n1: " rdrand "\n\t" \ - "jc 2f\n\t" \ - "decl %0\n\t" \ - "jnz 1b\n\t" \ - "2:", \ - X86_FEATURE_RDRAND, \ - ASM_OUTPUT2("=r" (ok), "=a" (*v)), \ - "0" (RDRAND_RETRY_LOOPS)); \ - return ok; \ -} - -#ifdef CONFIG_X86_64 - -GET_RANDOM(arch_get_random_long, unsigned long, RDRAND_LONG, ASM_NOP5); -GET_RANDOM(arch_get_random_int, unsigned int, RDRAND_INT, ASM_NOP4); - -#else - -GET_RANDOM(arch_get_random_long, unsigned long, RDRAND_LONG, ASM_NOP3); -GET_RANDOM(arch_get_random_int, unsigned int, RDRAND_INT, ASM_NOP3); - -#endif /* CONFIG_X86_64 */ - -#endif /* CONFIG_ARCH_RANDOM */ - -extern void x86_init_rdrand(struct cpuinfo_x86 *c); - -#endif /* ASM_X86_ARCHRANDOM_H */ |