x86/fpu: Split out fpu/signal.h from fpu/internal.h for signal frame handling functions

Most of the FPU does not use them, so split it out and include
them in signal.c and ia32_signal.c

Also fix header file dependency assumption in fpu/core.c.

Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 0 insertions, 24 deletions

diff --git a/arch/x86/include/asm/fpu/internal.h b/arch/x86/include/asm/fpu/internal.h
index dc4842b0831b..e2ceb49d310d 100644
--- a/arch/x86/include/asm/fpu/internal.h
+++ b/arch/x86/include/asm/fpu/internal.h
@@ -19,21 +19,6 @@
 #include <asm/fpu/api.h>
 #include <asm/fpu/xstate.h>
 
-#ifdef CONFIG_X86_64
-# include <asm/sigcontext32.h>
-# include <asm/user32.h>
-struct ksignal;
-int ia32_setup_rt_frame(int sig, struct ksignal *ksig,
-                        compat_sigset_t *set, struct pt_regs *regs);
-int ia32_setup_frame(int sig, struct ksignal *ksig,
-                     compat_sigset_t *set, struct pt_regs *regs);
-#else
-# define user_i387_ia32_struct  user_i387_struct
-# define user32_fxsr_struct     user_fxsr_struct
-# define ia32_setup_frame       __setup_frame
-# define ia32_setup_rt_frame    __setup_rt_frame
-#endif
-
 #define MXCSR_DEFAULT           0x1f80
 
 extern unsigned int mxcsr_feature_mask;
@@ -63,11 +48,6 @@ extern void fpu__resume_cpu(void);
 
 DECLARE_PER_CPU(struct fpu *, fpu_fpregs_owner_ctx);
 
-extern void convert_from_fxsr(struct user_i387_ia32_struct *env,
-                              struct task_struct *tsk);
-extern void convert_to_fxsr(struct task_struct *tsk,
-                            const struct user_i387_ia32_struct *env);
-
 extern user_regset_active_fn regset_fpregs_active, regset_xregset_fpregs_active;
 extern user_regset_get_fn fpregs_get, xfpregs_get, fpregs_soft_get,
                                 xstateregs_get;
@@ -530,8 +510,4 @@ static inline unsigned short get_fpu_mxcsr(struct task_struct *tsk)
         }
 }
 
-unsigned long
-fpu__alloc_mathframe(unsigned long sp, int ia32_frame,
-                     unsigned long *buf_fx, unsigned long *size);
-
 #endif /* _ASM_X86_FPU_INTERNAL_H */