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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __X86_KERNEL_FPU_INTERNAL_H
#define __X86_KERNEL_FPU_INTERNAL_H
extern union fpregs_state 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
/* Init functions */
extern void fpu__init_prepare_fx_sw_frame(void);
/* Used in init.c */
extern void fpstate_init_user(union fpregs_state *state);
#endif
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