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68 lines
2.2 KiB
68 lines
2.2 KiB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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/* |
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* NUMA memory policies for Linux. |
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* Copyright 2003,2004 Andi Kleen SuSE Labs |
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*/ |
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#ifndef _UAPI_LINUX_MEMPOLICY_H |
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#define _UAPI_LINUX_MEMPOLICY_H |
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#include <linux/errno.h> |
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/* |
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* Both the MPOL_* mempolicy mode and the MPOL_F_* optional mode flags are |
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* passed by the user to either set_mempolicy() or mbind() in an 'int' actual. |
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* The MPOL_MODE_FLAGS macro determines the legal set of optional mode flags. |
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*/ |
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/* Policies */ |
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enum { |
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MPOL_DEFAULT, |
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MPOL_PREFERRED, |
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MPOL_BIND, |
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MPOL_INTERLEAVE, |
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MPOL_LOCAL, |
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MPOL_MAX, /* always last member of enum */ |
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}; |
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/* Flags for set_mempolicy */ |
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#define MPOL_F_STATIC_NODES (1 << 15) |
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#define MPOL_F_RELATIVE_NODES (1 << 14) |
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#define MPOL_F_NUMA_BALANCING (1 << 13) /* Optimize with NUMA balancing if possible */ |
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/* |
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* MPOL_MODE_FLAGS is the union of all possible optional mode flags passed to |
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* either set_mempolicy() or mbind(). |
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*/ |
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#define MPOL_MODE_FLAGS \ |
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(MPOL_F_STATIC_NODES | MPOL_F_RELATIVE_NODES | MPOL_F_NUMA_BALANCING) |
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/* Flags for get_mempolicy */ |
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#define MPOL_F_NODE (1<<0) /* return next IL mode instead of node mask */ |
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#define MPOL_F_ADDR (1<<1) /* look up vma using address */ |
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#define MPOL_F_MEMS_ALLOWED (1<<2) /* return allowed memories */ |
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/* Flags for mbind */ |
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#define MPOL_MF_STRICT (1<<0) /* Verify existing pages in the mapping */ |
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#define MPOL_MF_MOVE (1<<1) /* Move pages owned by this process to conform |
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to policy */ |
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#define MPOL_MF_MOVE_ALL (1<<2) /* Move every page to conform to policy */ |
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#define MPOL_MF_LAZY (1<<3) /* Modifies '_MOVE: lazy migrate on fault */ |
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#define MPOL_MF_INTERNAL (1<<4) /* Internal flags start here */ |
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#define MPOL_MF_VALID (MPOL_MF_STRICT | \ |
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MPOL_MF_MOVE | \ |
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MPOL_MF_MOVE_ALL) |
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/* |
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* Internal flags that share the struct mempolicy flags word with |
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* "mode flags". These flags are allocated from bit 0 up, as they |
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* are never OR'ed into the mode in mempolicy API arguments. |
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*/ |
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#define MPOL_F_SHARED (1 << 0) /* identify shared policies */ |
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#define MPOL_F_LOCAL (1 << 1) /* preferred local allocation */ |
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#define MPOL_F_MOF (1 << 3) /* this policy wants migrate on fault */ |
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#define MPOL_F_MORON (1 << 4) /* Migrate On protnone Reference On Node */ |
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#endif /* _UAPI_LINUX_MEMPOLICY_H */
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