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| author |   Ingo Molnar <mingo@kernel.org> | 2015-04-30 08:45:02 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-05-19 15:48:05 +0200 |
| commit | fcbc99c403c4a1a24ac4744e08c04da3ec18a68c (patch) | |
| tree | dadaae57529d3b64d3bfae2509757b68d98786d8 /arch/x86/include/asm/fpu/signal.h | |
| parent | x86/fpu: Move is_ia32*frame() helpers out of fpu/internal.h (diff) | |
| download | linux-dev-fcbc99c403c4a1a24ac4744e08c04da3ec18a68c.tar.xz linux-dev-fcbc99c403c4a1a24ac4744e08c04da3ec18a68c.zip | |
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>
Diffstat (limited to 'arch/x86/include/asm/fpu/signal.h')
| -rw-r--r-- | arch/x86/include/asm/fpu/signal.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/x86/include/asm/fpu/signal.h b/arch/x86/include/asm/fpu/signal.h new file mode 100644 index 000000000000..0803dc2aba80 --- /dev/null +++ b/arch/x86/include/asm/fpu/signal.h @@ -0,0 +1,31 @@ +/* + * x86 FPU signal frame handling methods: + */ +#ifndef _ASM_X86_FPU_SIGNAL_H +#define _ASM_X86_FPU_SIGNAL_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 + +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); + +unsigned long +fpu__alloc_mathframe(unsigned long sp, int ia32_frame, + unsigned long *buf_fx, unsigned long *size); + +#endif /* _ASM_X86_FPU_SIGNAL_H */ |