cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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mempolicy.h (2583B)

      1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2/*
      3 * NUMA memory policies for Linux.
      4 * Copyright 2003,2004 Andi Kleen SuSE Labs
      5 */
      6#ifndef _UAPI_LINUX_MEMPOLICY_H
      7#define _UAPI_LINUX_MEMPOLICY_H
      8
      9#include <linux/errno.h>
     10
     11
     12/*
     13 * Both the MPOL_* mempolicy mode and the MPOL_F_* optional mode flags are
     14 * passed by the user to either set_mempolicy() or mbind() in an 'int' actual.
     15 * The MPOL_MODE_FLAGS macro determines the legal set of optional mode flags.
     16 */
     17
     18/* Policies */
     19enum {
     20	MPOL_DEFAULT,
     21	MPOL_PREFERRED,
     22	MPOL_BIND,
     23	MPOL_INTERLEAVE,
     24	MPOL_LOCAL,
     25	MPOL_PREFERRED_MANY,
     26	MPOL_MAX,	/* always last member of enum */
     27};
     28
     29/* Flags for set_mempolicy */
     30#define MPOL_F_STATIC_NODES	(1 << 15)
     31#define MPOL_F_RELATIVE_NODES	(1 << 14)
     32#define MPOL_F_NUMA_BALANCING	(1 << 13) /* Optimize with NUMA balancing if possible */
     33
     34/*
     35 * MPOL_MODE_FLAGS is the union of all possible optional mode flags passed to
     36 * either set_mempolicy() or mbind().
     37 */
     38#define MPOL_MODE_FLAGS							\
     39	(MPOL_F_STATIC_NODES | MPOL_F_RELATIVE_NODES | MPOL_F_NUMA_BALANCING)
     40
     41/* Flags for get_mempolicy */
     42#define MPOL_F_NODE	(1<<0)	/* return next IL mode instead of node mask */
     43#define MPOL_F_ADDR	(1<<1)	/* look up vma using address */
     44#define MPOL_F_MEMS_ALLOWED (1<<2) /* return allowed memories */
     45
     46/* Flags for mbind */
     47#define MPOL_MF_STRICT	(1<<0)	/* Verify existing pages in the mapping */
     48#define MPOL_MF_MOVE	 (1<<1)	/* Move pages owned by this process to conform
     49				   to policy */
     50#define MPOL_MF_MOVE_ALL (1<<2)	/* Move every page to conform to policy */
     51#define MPOL_MF_LAZY	 (1<<3)	/* Modifies '_MOVE:  lazy migrate on fault */
     52#define MPOL_MF_INTERNAL (1<<4)	/* Internal flags start here */
     53
     54#define MPOL_MF_VALID	(MPOL_MF_STRICT   | 	\
     55			 MPOL_MF_MOVE     | 	\
     56			 MPOL_MF_MOVE_ALL)
     57
     58/*
     59 * Internal flags that share the struct mempolicy flags word with
     60 * "mode flags".  These flags are allocated from bit 0 up, as they
     61 * are never OR'ed into the mode in mempolicy API arguments.
     62 */
     63#define MPOL_F_SHARED  (1 << 0)	/* identify shared policies */
     64#define MPOL_F_MOF	(1 << 3) /* this policy wants migrate on fault */
     65#define MPOL_F_MORON	(1 << 4) /* Migrate On protnone Reference On Node */
     66
     67/*
     68 * These bit locations are exposed in the vm.zone_reclaim_mode sysctl
     69 * ABI.  New bits are OK, but existing bits can never change.
     70 */
     71#define RECLAIM_ZONE	(1<<0)	/* Run shrink_inactive_list on the zone */
     72#define RECLAIM_WRITE	(1<<1)	/* Writeout pages during reclaim */
     73#define RECLAIM_UNMAP	(1<<2)	/* Unmap pages during reclaim */
     74
     75#endif /* _UAPI_LINUX_MEMPOLICY_H */