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x86/fpu: Move fpstate functions to api.h

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Move function declarations which need to be globally available to api.h
where they belong.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211015011539.792363754@linutronix.de
This commit is contained in:
Thomas Gleixner 2021-10-15 03:16:33 +02:00 committed by Borislav Petkov
parent d9d005f32a
commit 90489f1dee
4 changed files with 13 additions and 10 deletions
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9
arch/x86/include/asm/fpu/api.h
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@ -110,6 +110,15 @@ extern int cpu_has_xfeatures(u64 xfeatures_mask, const char **feature_name);
static inline void update_pasid(void) { }
#ifdef CONFIG_MATH_EMULATION
extern void fpstate_init_soft(struct swregs_state *soft);
#else
static inline void fpstate_init_soft(struct swregs_state *soft) {}
#endif
/* fpstate */
extern union fpregs_state init_fpstate;
/* fpstate-related functions which are exported to KVM */
extern void fpu_init_fpstate_user(struct fpu *fpu);

9
arch/x86/include/asm/fpu/internal.h
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@ -42,15 +42,6 @@ extern void fpu__init_system(struct cpuinfo_x86 *c);
extern void fpu__init_check_bugs(void);
extern void fpu__resume_cpu(void);
extern union fpregs_state init_fpstate;
extern void fpstate_init_user(union fpregs_state *state);
#ifdef CONFIG_MATH_EMULATION
extern void fpstate_init_soft(struct swregs_state *soft);
#else
static inline void fpstate_init_soft(struct swregs_state *soft) {}
#endif
extern void restore_fpregs_from_fpstate(union fpregs_state *fpstate, u64 mask);
extern bool copy_fpstate_to_sigframe(void __user *buf, void __user *fp, int size);

3
arch/x86/kernel/fpu/internal.h
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@ -22,4 +22,7 @@ static __always_inline __pure bool use_fxsr(void)
/* 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

2
arch/x86/math-emu/fpu_entry.c
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@ -31,7 +31,7 @@
#include <linux/uaccess.h>
#include <asm/traps.h>
#include <asm/user.h>
#include <asm/fpu/internal.h>
#include <asm/fpu/api.h>
#include "fpu_system.h"
#include "fpu_emu.h"