/*
   * NUMA memory policies for Linux.
   * Copyright 2003,2004 Andi Kleen SuSE Labs
   */
  #ifndef _UAPI_LINUX_MEMPOLICY_H
  #define _UAPI_LINUX_MEMPOLICY_H
  
  #include <linux/errno.h>
  
  
  /*
   * Both the MPOL_* mempolicy mode and the MPOL_F_* optional mode flags are
   * passed by the user to either set_mempolicy() or mbind() in an 'int' actual.
   * The MPOL_MODE_FLAGS macro determines the legal set of optional mode flags.
   */
  
  /* Policies */
  enum {
  	MPOL_DEFAULT,
  	MPOL_PREFERRED,
  	MPOL_BIND,
  	MPOL_INTERLEAVE,
  	MPOL_LOCAL,
  	MPOL_MAX,	/* always last member of enum */
  };
  
  enum mpol_rebind_step {
  	MPOL_REBIND_ONCE,	/* do rebind work at once(not by two step) */
  	MPOL_REBIND_STEP1,	/* first step(set all the newly nodes) */
  	MPOL_REBIND_STEP2,	/* second step(clean all the disallowed nodes)*/
  	MPOL_REBIND_NSTEP,
  };
  
  /* Flags for set_mempolicy */
  #define MPOL_F_STATIC_NODES	(1 << 15)
  #define MPOL_F_RELATIVE_NODES	(1 << 14)
  
  /*
   * MPOL_MODE_FLAGS is the union of all possible optional mode flags passed to
   * either set_mempolicy() or mbind().
   */
  #define MPOL_MODE_FLAGS	(MPOL_F_STATIC_NODES | MPOL_F_RELATIVE_NODES)
  
  /* Flags for get_mempolicy */
  #define MPOL_F_NODE	(1<<0)	/* return next IL mode instead of node mask */
  #define MPOL_F_ADDR	(1<<1)	/* look up vma using address */
  #define MPOL_F_MEMS_ALLOWED (1<<2) /* return allowed memories */
  
  /* Flags for mbind */
  #define MPOL_MF_STRICT	(1<<0)	/* Verify existing pages in the mapping */
  #define MPOL_MF_MOVE	 (1<<1)	/* Move pages owned by this process to conform
  				   to policy */
  #define MPOL_MF_MOVE_ALL (1<<2)	/* Move every page to conform to policy */
  #define MPOL_MF_LAZY	 (1<<3)	/* Modifies '_MOVE:  lazy migrate on fault */
  #define MPOL_MF_INTERNAL (1<<4)	/* Internal flags start here */
  
  #define MPOL_MF_VALID	(MPOL_MF_STRICT   | 	\
  			 MPOL_MF_MOVE     | 	\
  			 MPOL_MF_MOVE_ALL)
  
  /*
   * Internal flags that share the struct mempolicy flags word with
   * "mode flags".  These flags are allocated from bit 0 up, as they
   * are never OR'ed into the mode in mempolicy API arguments.
   */
  #define MPOL_F_SHARED  (1 << 0)	/* identify shared policies */
  #define MPOL_F_LOCAL   (1 << 1)	/* preferred local allocation */
  #define MPOL_F_REBINDING (1 << 2)	/* identify policies in rebinding */
  #define MPOL_F_MOF	(1 << 3) /* this policy wants migrate on fault */
  #define MPOL_F_MORON	(1 << 4) /* Migrate On pte_numa Reference On Node */
  
  
  #endif /* _UAPI_LINUX_MEMPOLICY_H */