| 1 | #ifndef __LINUX_GFP_H
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| 2 | #define __LINUX_GFP_H
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| 3 |
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| 4 | #include <asm/page.h>
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| 5 | #include <linux/export.h>
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| 6 | #include <linux/mm.h>
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| 7 | #include <linux/types.h>
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| 8 |
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| 9 | /* Plain integer GFP bitmasks. Do not use this directly. */
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| 10 | #define ___GFP_DMA 0x01u
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| 11 | #define ___GFP_HIGHMEM 0x02u
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| 12 | #define ___GFP_DMA32 0x04u
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| 13 | #define ___GFP_MOVABLE 0x08u
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| 14 | #define ___GFP_RECLAIMABLE 0x10u
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| 15 | #define ___GFP_HIGH 0x20u
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| 16 | #define ___GFP_IO 0x40u
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| 17 | #define ___GFP_FS 0x80u
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| 18 | #define ___GFP_ZERO 0x100u
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| 19 | #define ___GFP_ATOMIC 0x200u
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| 20 | #define ___GFP_DIRECT_RECLAIM 0x400u
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| 21 | #define ___GFP_KSWAPD_RECLAIM 0x800u
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| 22 | #define ___GFP_WRITE 0x1000u
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| 23 | #define ___GFP_NOWARN 0x2000u
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| 24 | #define ___GFP_RETRY_MAYFAIL 0x4000u
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| 25 | #define ___GFP_NOFAIL 0x8000u
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| 26 | #define ___GFP_NORETRY 0x10000u
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| 27 | #define ___GFP_MEMALLOC 0x20000u
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| 28 | #define ___GFP_COMP 0x40000u
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| 29 | #define ___GFP_NOMEMALLOC 0x80000u
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| 30 | #define ___GFP_HARDWALL 0x100000u
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| 31 | #define ___GFP_THISNODE 0x200000u
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| 32 | #define ___GFP_ACCOUNT 0x400000u
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| 33 | #ifdef CONFIG_LOCKDEP
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| 34 | #define ___GFP_NOLOCKDEP 0x800000u
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| 35 | #else
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| 36 | #define ___GFP_NOLOCKDEP 0
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| 37 | #endif
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| 38 | /* If the above are modified, __GFP_BITS_SHIFT may need updating */
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| 39 |
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| 40 | #define __GFP_NORETRY 0
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| 41 | #define __GFP_NOWARN ((__force gfp_t)___GFP_NOWARN)
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| 42 | #define __GFP_COMP ((__force gfp_t)___GFP_COMP)
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| 43 | #define __GFP_ZERO ((__force gfp_t)___GFP_ZERO)
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| 44 | #define __GFP_RETRY_MAYFAIL ((__force gfp_t)___GFP_RETRY_MAYFAIL)
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| 45 | #define GFP_DMA32 0 /* driver must check for 32-bit address */
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| 46 |
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| 47 | /*
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| 48 | * Physical address zone modifiers (see linux/mmzone.h - low four bits)
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| 49 | *
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| 50 | * Do not put any conditional on these. If necessary modify the definitions
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| 51 | * without the underscores and use them consistently. The definitions here may
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| 52 | * be used in bit comparisons.
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| 53 | */
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| 54 | #define __GFP_DMA ((__force gfp_t)___GFP_DMA)
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| 55 | #define __GFP_HIGHMEM ((__force gfp_t)___GFP_HIGHMEM)
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| 56 | #define __GFP_DMA32 ((__force gfp_t)___GFP_DMA32)
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| 57 | #define __GFP_MOVABLE ((__force gfp_t)___GFP_MOVABLE) /* ZONE_MOVABLE allowed */
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| 58 | #define GFP_ZONEMASK (__GFP_DMA|__GFP_HIGHMEM|__GFP_DMA32|__GFP_MOVABLE)
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| 59 | void *alloc_pages_exact(size_t size, gfp_t gfp_mask);
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| 60 | void free_pages_exact(void *virt, size_t size);
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| 61 |
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| 62 | #endif /* __LINUX_GFP_H */
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| 63 |
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