diff options
Diffstat (limited to 'src/crypto/simd.h')
| -rw-r--r-- | src/crypto/simd.h | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/src/crypto/simd.h b/src/crypto/simd.h deleted file mode 100644 index 07936bf..0000000 --- a/src/crypto/simd.h +++ /dev/null @@ -1,59 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 - * - * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. - */ - -#ifndef _WG_SIMD_H -#define _WG_SIMD_H - -#if defined(CONFIG_X86_64) -#include <linux/version.h> -#include <asm/fpu/api.h> -#include <asm/simd.h> -#elif IS_ENABLED(CONFIG_KERNEL_MODE_NEON) -#include <asm/neon.h> -#include <asm/simd.h> -#endif - -static inline bool simd_get(void) -{ - bool have_simd = false; -#if defined(CONFIG_X86_64) && !defined(CONFIG_UML) && !defined(CONFIG_PREEMPT_RT_BASE) - have_simd = irq_fpu_usable(); - if (have_simd) - kernel_fpu_begin(); -#elif IS_ENABLED(CONFIG_KERNEL_MODE_NEON) && !defined(CONFIG_PREEMPT_RT_BASE) -#if defined(CONFIG_ARM64) - have_simd = true; /* ARM64 supports NEON in any context. */ -#elif defined(CONFIG_ARM) - have_simd = may_use_simd(); /* ARM doesn't support NEON in interrupt context. */ -#endif - if (have_simd) - kernel_neon_begin(); -#endif - return have_simd; -} - -static inline void simd_put(bool was_on) -{ -#if defined(CONFIG_X86_64) && !defined(CONFIG_UML) && !defined(CONFIG_PREEMPT_RT_BASE) - if (was_on) - kernel_fpu_end(); -#elif IS_ENABLED(CONFIG_KERNEL_MODE_NEON) && !defined(CONFIG_PREEMPT_RT_BASE) - if (was_on) - kernel_neon_end(); -#endif -} - -static inline bool simd_relax(bool was_on) -{ -#ifdef CONFIG_PREEMPT - if (was_on && need_resched()) { - simd_put(true); - return simd_get(); - } -#endif - return was_on; -} - -#endif /* _WG_SIMD_H */ |