1 #ifndef _ASM_X86_MMU_H 2 #define _ASM_X86_MMU_H 3 4 #include <linux/spinlock.h> 5 #include <linux/mutex.h> 6 7 /* 8 * The x86 doesn't have a mmu context, but 9 * we put the segment information here. 10 */ 11 typedef struct { 12 struct ldt_struct *ldt; 13 14 #ifdef CONFIG_X86_64 15 /* True if mm supports a task running in 32 bit compatibility mode. */ 16 unsigned short ia32_compat; 17 #endif 18 19 struct mutex lock; 20 void __user *vdso; 21 22 atomic_t perf_rdpmc_allowed; /* nonzero if rdpmc is allowed */ 23 } mm_context_t; 24 25 #ifdef CONFIG_SMP 26 void leave_mm(int cpu); 27 #else 28 static inline void leave_mm(int cpu) 29 { 30 } 31 #endif 32 33 #endif /* _ASM_X86_MMU_H */ 34