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sys/compat/linuxkpi/common/include/asm/fpu/api.h
- This file was added.
| /*- | |||||
| * SPDX-License-Identifier: BSD-2-Clause-FreeBSD | |||||
| * | |||||
| * Copyright (c) 2020 Greg V <greg@unrelenting.technology> | |||||
| * | |||||
| * Redistribution and use in source and binary forms, with or without | |||||
| * modification, are permitted provided that the following conditions | |||||
| * are met: | |||||
| * 1. Redistributions of source code must retain the above copyright | |||||
| * notice, this list of conditions and the following disclaimer. | |||||
| * 2. Redistributions in binary form must reproduce the above copyright | |||||
| * notice, this list of conditions and the following disclaimer in the | |||||
| * documentation and/or other materials provided with the distribution. | |||||
| * | |||||
| * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND | |||||
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |||||
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |||||
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE | |||||
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |||||
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |||||
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |||||
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |||||
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |||||
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |||||
| * SUCH DAMAGE. | |||||
| */ | |||||
| #ifndef _FPU_API_H_ | |||||
| #define _FPU_API_H_ | |||||
| #if defined(__aarch64__) || defined(__amd64__) || defined(__i386__) | |||||
| #include <machine/fpu.h> | |||||
| extern struct fpu_kern_ctx *__lkpi_fpu_ctx; | |||||
| extern unsigned int __lkpi_fpu_ctx_level; | |||||
| static inline void | |||||
| kernel_fpu_begin() | |||||
| { | |||||
| if (__lkpi_fpu_ctx_level++ == 0) { | |||||
| fpu_kern_enter(curthread, __lkpi_fpu_ctx, FPU_KERN_NORMAL); | |||||
| } | |||||
| } | |||||
| static inline void | |||||
| kernel_fpu_end() | |||||
| { | |||||
| if (--__lkpi_fpu_ctx_level == 0) { | |||||
| fpu_kern_leave(curthread, __lkpi_fpu_ctx); | |||||
| } | |||||
| } | |||||
| #else | |||||
| static inline void | |||||
| kernel_fpu_begin() | |||||
| { | |||||
| } | |||||
| static inline void | |||||
| kernel_fpu_end() | |||||
| { | |||||
| } | |||||
| #endif | |||||
| #endif /* _FPU_API_H_ */ | |||||