45 extern void __copy_xstate_to_uabi_buf(struct membuf to, struct fpstate *fpstate,
49 extern int copy_uabi_from_kernel_to_xstate(struct fpstate *fpstate, const void *kbuf, u32 *pkru);
144 extern void xfd_validate_state(struct fpstate *fpstate, u64 mask, bool rstor);
146 static inline void xfd_validate_state(struct fpstate *fpstate, u64 mask, bool rstor) { }  in xfd_validate_state()  argument
150 static inline void xfd_update_state(struct fpstate *fpstate)  in xfd_update_state()  argument
153 		u64 xfd = fpstate->xfd;  in xfd_update_state()
164 static inline void xfd_update_state(struct fpstate *fpstate) { }  in xfd_update_state()  argument
177 static inline void os_xsave(struct fpstate *fpstate)  in os_xsave()  argument
179 	u64 mask = fpstate->xfeatures;  in os_xsave()
185 	xfd_validate_state(fpstate, mask, false);  in os_xsave()
187 	XSTATE_XSAVE(&fpstate->regs.xsave, lmask, hmask, err);  in os_xsave()
198 static inline void os_xrstor(struct fpstate *fpstate, u64 mask)  in os_xrstor()  argument
203 	xfd_validate_state(fpstate, mask, true);  in os_xrstor()
204 	XSTATE_XRESTORE(&fpstate->regs.xsave, lmask, hmask);  in os_xrstor()
208 static inline void os_xrstor_supervisor(struct fpstate *fpstate)  in os_xrstor_supervisor()  argument
214 	XSTATE_XRESTORE(&fpstate->regs.xsave, lmask, hmask);  in os_xrstor_supervisor()
263 	struct fpstate *fpstate = current->thread.fpu.fpstate;  in xsave_to_user_sigframe()  local
264 	u64 mask = fpstate->user_xfeatures;  in xsave_to_user_sigframe()
275 	xfd_validate_state(fpstate, mask, false);  in xsave_to_user_sigframe()
294 	xfd_validate_state(current->thread.fpu.fpstate, mask, true);  in xrstor_from_user_sigframe()
307 static inline int os_xrstor_safe(struct fpstate *fpstate, u64 mask)  in os_xrstor_safe()  argument
309 	struct xregs_state *xstate = &fpstate->regs.xsave;  in os_xrstor_safe()
315 	xfd_update_state(fpstate);  in os_xrstor_safe()