246 static void __convert_from_fxsr(struct user_i387_ia32_struct *env,  in __convert_from_fxsr()  argument
250 	struct _fpreg *to = (struct _fpreg *) &env->st_space[0];  in __convert_from_fxsr()
254 	env->cwd = fxsave->cwd | 0xffff0000u;  in __convert_from_fxsr()
255 	env->swd = fxsave->swd | 0xffff0000u;  in __convert_from_fxsr()
256 	env->twd = twd_fxsr_to_i387(fxsave);  in __convert_from_fxsr()
259 	env->fip = fxsave->rip;  in __convert_from_fxsr()
260 	env->foo = fxsave->rdp;  in __convert_from_fxsr()
265 	env->fcs = task_pt_regs(tsk)->cs;  in __convert_from_fxsr()
267 		savesegment(ds, env->fos);  in __convert_from_fxsr()
269 		env->fos = tsk->thread.ds;  in __convert_from_fxsr()
271 	env->fos |= 0xffff0000;  in __convert_from_fxsr()
273 	env->fip = fxsave->fip;  in __convert_from_fxsr()
274 	env->fcs = (u16) fxsave->fcs | ((u32) fxsave->fop << 16);  in __convert_from_fxsr()
275 	env->foo = fxsave->foo;  in __convert_from_fxsr()
276 	env->fos = fxsave->fos;  in __convert_from_fxsr()
284 convert_from_fxsr(struct user_i387_ia32_struct *env, struct task_struct *tsk)  in convert_from_fxsr()  argument
286 	__convert_from_fxsr(env, tsk, &tsk->thread.fpu.state.fxsave);  in convert_from_fxsr()
290 		     const struct user_i387_ia32_struct *env)  in convert_to_fxsr()  argument
293 	struct _fpreg *from = (struct _fpreg *) &env->st_space[0];  in convert_to_fxsr()
297 	fxsave->cwd = env->cwd;  in convert_to_fxsr()
298 	fxsave->swd = env->swd;  in convert_to_fxsr()
299 	fxsave->twd = twd_i387_to_fxsr(env->twd);  in convert_to_fxsr()
300 	fxsave->fop = (u16) ((u32) env->fcs >> 16);  in convert_to_fxsr()
302 	fxsave->rip = env->fip;  in convert_to_fxsr()
303 	fxsave->rdp = env->foo;  in convert_to_fxsr()
306 	fxsave->fip = env->fip;  in convert_to_fxsr()
307 	fxsave->fcs = (env->fcs & 0xffff);  in convert_to_fxsr()
308 	fxsave->foo = env->foo;  in convert_to_fxsr()
309 	fxsave->fos = env->fos;  in convert_to_fxsr()
320 	struct user_i387_ia32_struct env;  in fpregs_get()  local
343 	__convert_from_fxsr(&env, target, fx);  in fpregs_get()
344 	return membuf_write(&to, &env, sizeof(env));  in fpregs_get()
352 	struct user_i387_ia32_struct env;  in fpregs_set()  local
362 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &env, 0, -1);  in fpregs_set()
369 		convert_to_fxsr(&fpu->state.fxsave, &env);  in fpregs_set()
371 		memcpy(&fpu->state.fsave, &env, sizeof(env));  in fpregs_set()