21 #include <asm/cpu-features.h>
26 #include <asm/current.h>
41  * This enum specifies a mode in which we want the FPU to operate, for cores
60 static inline int __enable_fpu(enum fpu_mode mode)  in __enable_fpu()  argument
64 	switch (mode) {  in __enable_fpu()
66 		/* just enable the FPU in its current mode */  in __enable_fpu()
82 		/* we only have a 32-bit FPU */  in __enable_fpu()
93 		fr = (int)mode & FPU_FR_MASK;  in __enable_fpu()
126 	enum fpu_mode mode;  in __own_fpu()  local
130 		mode = FPU_HYBRID;  in __own_fpu()
132 		mode = !test_thread_flag(TIF_32BIT_FPREGS);  in __own_fpu()
134 	ret = __enable_fpu(mode);  in __own_fpu()
138 	KSTK_STATUS(current) |= ST0_CU1;  in __own_fpu()
139 	if (mode == FPU_64BIT || mode == FPU_HYBRID)  in __own_fpu()
140 		KSTK_STATUS(current) |= ST0_FR;  in __own_fpu()
141 	else /* mode == FPU_32BIT */  in __own_fpu()
142 		KSTK_STATUS(current) &= ~ST0_FR;  in __own_fpu()
155 			_restore_fp(current);  in own_fpu_inatomic()
175 			tsk->thread.fpu.fcr31 =  in lose_fpu_inatomic()
197 	lose_fpu_inatomic(save, current);  in lose_fpu()
203 	unsigned int fcr31 = current->thread.fpu.fcr31;  in init_fpu()
253 	if (tsk == current) {  in get_fpu_regs()
256 			_save_fp(current);  in get_fpu_regs()
260 	return tsk->thread.fpu.fpr;  in get_fpu_regs()