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- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef __X86_KERNEL_FPU_INTERNAL_H
- #define __X86_KERNEL_FPU_INTERNAL_H
- extern struct fpstate init_fpstate;
- /* CPU feature check wrappers */
- static __always_inline __pure bool use_xsave(void)
- {
- return cpu_feature_enabled(X86_FEATURE_XSAVE);
- }
- static __always_inline __pure bool use_fxsr(void)
- {
- return cpu_feature_enabled(X86_FEATURE_FXSR);
- }
- #ifdef CONFIG_X86_DEBUG_FPU
- # define WARN_ON_FPU(x) WARN_ON_ONCE(x)
- #else
- # define WARN_ON_FPU(x) ({ (void)(x); 0; })
- #endif
- /* Used in init.c */
- extern void fpstate_init_user(struct fpstate *fpstate);
- extern void fpstate_reset(struct fpu *fpu);
- #endif
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