45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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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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#include <linux/compat.h>
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#include <linux/user.h>
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#include <asm/fpu/types.h>
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#ifdef CONFIG_X86_64
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# include <uapi/asm/sigcontext.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 fxregs_state *fxsave,
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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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unsigned long fpu__get_fpstate_size(void);
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extern bool copy_fpstate_to_sigframe(void __user *buf, void __user *fp, int size);
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extern void fpu__clear_user_states(struct fpu *fpu);
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extern bool fpu__restore_sig(void __user *buf, int ia32_frame);
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extern void restore_fpregs_from_fpstate(struct fpstate *fpstate, u64 mask);
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#endif /* _ASM_X86_FPU_SIGNAL_H */
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