2014-02-06 07:52:49 +01:00
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#ifndef _LINUX_VMALLOC_H
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#define _LINUX_VMALLOC_H
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2016-02-27 21:06:12 +01:00
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#include <linux/spinlock.h>
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#include <linux/init.h>
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#include <linux/list.h>
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struct vm_area_struct; /* vma defining user mapping in mm_types.h */
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/* bits in flags of vmalloc's vm_struct below */
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#define VM_IOREMAP 0x00000001 /* ioremap() and friends */
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#define VM_ALLOC 0x00000002 /* vmalloc() */
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#define VM_MAP 0x00000004 /* vmap()ed pages */
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#define VM_USERMAP 0x00000008 /* suitable for remap_vmalloc_range */
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#define VM_VPAGES 0x00000010 /* buffer for pages was vmalloc'ed */
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#define VM_UNINITIALIZED 0x00000020 /* vm_struct is not fully initialized */
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#define VM_NO_GUARD 0x00000040 /* don't add guard page */
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#define VM_KASAN 0x00000080 /* has allocated kasan shadow memory */
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/* bits [20..32] reserved for arch specific ioremap internals */
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/*
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* Maximum alignment for ioremap() regions.
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* Can be overriden by arch-specific value.
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*/
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#ifndef IOREMAP_MAX_ORDER
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#define IOREMAP_MAX_ORDER (7 + PAGE_SHIFT) /* 128 pages */
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#endif
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extern void *vmalloc(unsigned long size);
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extern void *vzalloc(unsigned long size);
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extern void vfree(const void *addr);
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extern void *vmap(struct page **pages, unsigned int count,
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unsigned long flags, pgprot_t prot);
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extern void vunmap(const void *addr);
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2014-02-06 07:52:49 +01:00
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#endif /* _LINUX_VMALLOC_H */
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