arch/x86/include/asm/fpu/signal.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * x86 FPU signal frame handling methods:
   4  */
   5 #ifndef _ASM_X86_FPU_SIGNAL_H
   6 #define _ASM_X86_FPU_SIGNAL_H
   7
   8 #ifdef CONFIG_X86_64
   9 # include <uapi/asm/sigcontext.h>
  10 # include <asm/user32.h>
  11 struct ksignal;
  12 int ia32_setup_rt_frame(int sig, struct ksignal *ksig,
  13                         compat_sigset_t *set, struct pt_regs *regs);
  14 int ia32_setup_frame(int sig, struct ksignal *ksig,
  15                      compat_sigset_t *set, struct pt_regs *regs);
  16 #else
  17 # define user_i387_ia32_struct  user_i387_struct
  18 # define user32_fxsr_struct     user_fxsr_struct
  19 # define ia32_setup_frame       __setup_frame
  20 # define ia32_setup_rt_frame    __setup_rt_frame
  21 #endif
  22
  23 #ifdef CONFIG_COMPAT
  24 int __copy_siginfo_to_user32(compat_siginfo_t __user *to,
  25                 const siginfo_t *from, bool x32_ABI);
  26 #endif
  27
  28
  29 extern void convert_from_fxsr(struct user_i387_ia32_struct *env,
  30                               struct task_struct *tsk);
  31 extern void convert_to_fxsr(struct task_struct *tsk,
  32                             const struct user_i387_ia32_struct *env);
  33
  34 unsigned long
  35 fpu__alloc_mathframe(unsigned long sp, int ia32_frame,
  36                      unsigned long *buf_fx, unsigned long *size);
  37
  38 extern void fpu__init_prepare_fx_sw_frame(void);
  39
  40 #endif /* _ASM_X86_FPU_SIGNAL_H */