fpu-internal.h File Reference

#include <linux/kernel_stat.h>
#include <linux/regset.h>
#include <linux/compat.h>
#include <linux/slab.h>
#include <asm/asm.h>
#include <asm/cpufeature.h>
#include <asm/processor.h>
#include <asm/sigcontext.h>
#include <asm/user.h>
#include <asm/uaccess.h>
#include <asm/xsave.h>
#include <asm/smap.h>

Go to the source code of this file.

Data Structures
struct	fpu_switch_t

Macros
#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
#define	xstateregs_active   fpregs_active
#define	HAVE_HWFP   1
#define	X87_FSW_ES   (1 << 7) /* Exception Summary */
#define	user_insn(insn, output, input...)
#define	check_insn(insn, output, input...)

Functions
void	fpu_init (void)
void	eager_fpu_init (void)
	DECLARE_PER_CPU (struct task_struct *, fpu_owner_task)
void	convert_from_fxsr (struct user_i387_ia32_struct *env, struct task_struct *tsk)
void	convert_to_fxsr (struct task_struct *tsk, const struct user_i387_ia32_struct *env)
void	__sanitize_i387_state (struct task_struct *)
int	save_xstate_sig (void __user *buf, void __user *fx, int size)
int	__restore_xstate_sig (void __user *buf, void __user *fx, int size)

Variables
unsigned int	mxcsr_feature_mask
user_regset_active_fn	fpregs_active
user_regset_active_fn	xfpregs_active
user_regset_get_fn	fpregs_get
user_regset_get_fn	xfpregs_get
user_regset_get_fn	fpregs_soft_get
user_regset_get_fn	xstateregs_get
user_regset_set_fn	fpregs_set
user_regset_set_fn	xfpregs_set
user_regset_set_fn	fpregs_soft_set
user_regset_set_fn	xstateregs_set

Macro Definition Documentation

#define check_insn	(		insn,
			output,
			input...
	)

Value:

({                                  \
    int err;                            \
    asm volatile("1:" #insn "\n\t"                  \
             "2:\n"                     \
             ".section .fixup,\"ax\"\n"             \
             "3:  movl $-1,%[err]\n"                \
             "    jmp  2b\n"                    \
             ".previous\n"                  \
             _ASM_EXTABLE(1b, 3b)               \
             : [err] "=r" (err), output             \
             : "0"(0), input);                  \
    err;                                \
})

Definition at line 141 of file fpu-internal.h.

#define HAVE_HWFP   1

Definition at line 67 of file fpu-internal.h.

#define ia32_setup_frame   __setup_frame

Definition at line 36 of file fpu-internal.h.

#define ia32_setup_rt_frame   __setup_rt_frame

Definition at line 37 of file fpu-internal.h.

#define user32_fxsr_struct   user_fxsr_struct

Definition at line 35 of file fpu-internal.h.

#define user_i387_ia32_struct   user_i387_struct

Definition at line 34 of file fpu-internal.h.

#define user_insn	(		insn,
			output,
			input...
	)

Value:

({                                  \
    int err;                            \
    asm volatile(ASM_STAC "\n"                  \
             "1:" #insn "\n\t"                  \
             "2: " ASM_CLAC "\n"                \
             ".section .fixup,\"ax\"\n"             \
             "3:  movl $-1,%[err]\n"                \
             "    jmp  2b\n"                    \
             ".previous\n"                  \
             _ASM_EXTABLE(1b, 3b)               \
             : [err] "=r" (err), output             \
             : "0"(0), input);                  \
    err;                                \
})

Definition at line 125 of file fpu-internal.h.

#define X87_FSW_ES   (1 << 7) /* Exception Summary */

Definition at line 87 of file fpu-internal.h.

#define xstateregs_active   fpregs_active

Definition at line 61 of file fpu-internal.h.

Function Documentation

int __restore_xstate_sig	(	void __user *	buf,
		void __user *	fx,
		int	size
	)

Definition at line 331 of file xsave.c.

void __sanitize_i387_state

(

struct task_struct *

)

Definition at line 39 of file xsave.c.

void convert_from_fxsr	(	struct user_i387_ia32_struct *	env,
		struct task_struct *	tsk
	)

void convert_to_fxsr	(	struct task_struct *	tsk,
		const struct user_i387_ia32_struct *	env
	)

DECLARE_PER_CPU	(	struct task_struct *	,
		fpu_owner_task
	)

void eager_fpu_init

(

void

)

Definition at line 598 of file xsave.c.

void fpu_init

(

void

)

Definition at line 160 of file i387.c.

int save_xstate_sig	(	void __user *	buf,
		void __user *	fx,
		int	size
	)

Definition at line 234 of file xsave.c.

Variable Documentation

user_regset_active_fn fpregs_active

user_regset_get_fn fpregs_get

user_regset_set_fn fpregs_set

user_regset_get_fn fpregs_soft_get

user_regset_set_fn fpregs_soft_set

unsigned int mxcsr_feature_mask

user_regset_active_fn xfpregs_active

user_regset_get_fn xfpregs_get

user_regset_set_fn xfpregs_set

user_regset_get_fn xstateregs_get

user_regset_set_fn xstateregs_set