task_thread_info(tsk)->status &= ~TS_USEDFPU;
}
-#define __unlazy_fpu( tsk ) do { \
- if (task_thread_info(tsk)->status & TS_USEDFPU) \
- save_init_fpu( tsk ); \
+#define __unlazy_fpu( tsk ) do { \
+ if (task_thread_info(tsk)->status & TS_USEDFPU) { \
+ __save_init_fpu(tsk); \
+ stts(); \
+ } else \
+ tsk->fpu_counter = 0; \
} while (0)
#define __clear_fpu( tsk ) \
do { \
- if (task_thread_info(tsk)->status & TS_USEDFPU) { \
- asm volatile("fnclex ; fwait"); \
+ if (task_thread_info(tsk)->status & TS_USEDFPU) { \
+ asm volatile("fnclex ; fwait"); \
task_thread_info(tsk)->status &= ~TS_USEDFPU; \
stts(); \
} \
__clear_fpu( tsk ); \
preempt_enable(); \
} while (0)
- \
+
/*
* FPU state interaction...
*/
extern unsigned short get_fpu_cwd( struct task_struct *tsk );
extern unsigned short get_fpu_swd( struct task_struct *tsk );
extern unsigned short get_fpu_mxcsr( struct task_struct *tsk );
+extern asmlinkage void math_state_restore(void);
/*
* Signal frame handlers...