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>
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@ -22,6 +22,7 @@
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#include <asm/ucontext.h>
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#include <asm/uaccess.h>
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#include <asm/fpu/internal.h>
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#include <asm/fpu/signal.h>
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#include <asm/ptrace.h>
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#include <asm/ia32_unistd.h>
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#include <asm/user32.h>
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@ -19,21 +19,6 @@
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#include <asm/fpu/api.h>
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#include <asm/fpu/xstate.h>
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#ifdef CONFIG_X86_64
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# include <asm/sigcontext32.h>
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# include <asm/user32.h>
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struct ksignal;
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int ia32_setup_rt_frame(int sig, struct ksignal *ksig,
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compat_sigset_t *set, struct pt_regs *regs);
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int ia32_setup_frame(int sig, struct ksignal *ksig,
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compat_sigset_t *set, struct pt_regs *regs);
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#else
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# define user_i387_ia32_struct user_i387_struct
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# define user32_fxsr_struct user_fxsr_struct
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# define ia32_setup_frame __setup_frame
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# define ia32_setup_rt_frame __setup_rt_frame
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#endif
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#define MXCSR_DEFAULT 0x1f80
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extern unsigned int mxcsr_feature_mask;
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@ -63,11 +48,6 @@ extern void fpu__resume_cpu(void);
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DECLARE_PER_CPU(struct fpu *, fpu_fpregs_owner_ctx);
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extern void convert_from_fxsr(struct user_i387_ia32_struct *env,
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struct task_struct *tsk);
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extern void convert_to_fxsr(struct task_struct *tsk,
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const struct user_i387_ia32_struct *env);
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extern user_regset_active_fn regset_fpregs_active, regset_xregset_fpregs_active;
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extern user_regset_get_fn fpregs_get, xfpregs_get, fpregs_soft_get,
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xstateregs_get;
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@ -530,8 +510,4 @@ static inline unsigned short get_fpu_mxcsr(struct task_struct *tsk)
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}
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}
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unsigned long
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fpu__alloc_mathframe(unsigned long sp, int ia32_frame,
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unsigned long *buf_fx, unsigned long *size);
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#endif /* _ASM_X86_FPU_INTERNAL_H */
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@ -0,0 +1,31 @@
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/*
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* x86 FPU signal frame handling methods:
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*/
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#ifndef _ASM_X86_FPU_SIGNAL_H
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#define _ASM_X86_FPU_SIGNAL_H
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#ifdef CONFIG_X86_64
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# include <asm/sigcontext32.h>
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# include <asm/user32.h>
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struct ksignal;
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int ia32_setup_rt_frame(int sig, struct ksignal *ksig,
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compat_sigset_t *set, struct pt_regs *regs);
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int ia32_setup_frame(int sig, struct ksignal *ksig,
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compat_sigset_t *set, struct pt_regs *regs);
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#else
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# define user_i387_ia32_struct user_i387_struct
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# define user32_fxsr_struct user_fxsr_struct
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# define ia32_setup_frame __setup_frame
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# define ia32_setup_rt_frame __setup_rt_frame
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#endif
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extern void convert_from_fxsr(struct user_i387_ia32_struct *env,
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struct task_struct *tsk);
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extern void convert_to_fxsr(struct task_struct *tsk,
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const struct user_i387_ia32_struct *env);
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unsigned long
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fpu__alloc_mathframe(unsigned long sp, int ia32_frame,
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unsigned long *buf_fx, unsigned long *size);
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#endif /* _ASM_X86_FPU_SIGNAL_H */
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@ -6,6 +6,8 @@
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* Gareth Hughes <gareth@valinux.com>, May 2000
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*/
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#include <asm/fpu/internal.h>
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#include <asm/fpu/signal.h>
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#include <linux/hardirq.h>
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/*
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@ -7,6 +7,7 @@
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#include <linux/cpu.h>
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#include <asm/fpu/api.h>
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#include <asm/fpu/internal.h>
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#include <asm/fpu/signal.h>
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#include <asm/sigframe.h>
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#include <asm/tlbflush.h>
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@ -29,6 +29,7 @@
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#include <asm/pgtable.h>
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#include <asm/processor.h>
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#include <asm/fpu/internal.h>
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#include <asm/fpu/signal.h>
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#include <asm/debugreg.h>
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#include <asm/ldt.h>
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#include <asm/desc.h>
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@ -27,6 +27,7 @@
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#include <asm/processor.h>
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#include <asm/ucontext.h>
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#include <asm/fpu/internal.h>
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#include <asm/fpu/signal.h>
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#include <asm/vdso.h>
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#include <asm/mce.h>
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#include <asm/sighandling.h>
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