struct thread_struct {
unsigned long ksp; /* Kernel stack pointer */
+
#ifdef CONFIG_PPC64
unsigned long ksp_vsid;
#endif
void *pgdir; /* root of page-table tree */
unsigned long ksp_limit; /* if ksp <= ksp_limit stack overflow */
#endif
+ /* Debug Registers */
struct debug_reg debug;
struct thread_fp_state fp_state;
struct thread_fp_state *fp_save_area;