[deliverable/linux.git] / arch / x86 / include / asm / mmu.h

#ifndef _ASM_X86_MMU_H
#define _ASM_X86_MMU_H

#include <linux/spinlock.h>
#include <linux/mutex.h>

/*
 * The x86 doesn't have a mmu context, but
 * we put the segment information here.
 */
typedef struct {
	void *ldt;
	int size;

#ifdef CONFIG_X86_64
	/* True if mm supports a task running in 32 bit compatibility mode. */
	unsigned short ia32_compat;
#endif

	struct mutex lock;
	void __user *vdso;

	atomic_t perf_rdpmc_allowed;	/* nonzero if rdpmc is allowed */
} mm_context_t;

#ifdef CONFIG_SMP
void leave_mm(int cpu);
#else
static inline void leave_mm(int cpu)
{
}
#endif

#endif /* _ASM_X86_MMU_H */
Commit	Line	Data
1965aae3 PA	1	#ifndef _ASM_X86_MMU_H
1965aae3 PA	2	#define _ASM_X86_MMU_H
70353023 CS	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.
70353023	10	*/
710d0e9c	11	typedef struct {
70353023	12	void *ldt;
70353023	13	int size;
c2ef45df SW	14
	15	#ifdef CONFIG_X86_64
	16	/* True if mm supports a task running in 32 bit compatibility mode. */
	17	unsigned short ia32_compat;
	18	#endif
	19
af6a25f0	20	struct mutex lock;
6f121e54	21	void __user *vdso;
7911d3f7 AL	22
7911d3f7 AL	23	atomic_t perf_rdpmc_allowed; /* nonzero if rdpmc is allowed */
70353023 CS	24	} mm_context_t;
70353023 CS	25
bde6f5f5 VP	26	#ifdef CONFIG_SMP
	27	void leave_mm(int cpu);
	28	#else
	29	static inline void leave_mm(int cpu)
	30	{
	31	}
	32	#endif
	33
1965aae3	34	#endif /* _ASM_X86_MMU_H */