Chloe M.
61 lines
1.1 KiB
C
61 lines
1.1 KiB
C
/*
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* Copyright (c) 2026, Chloe M.
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* Provided under the BSD-3 clause.
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*
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* Description: VAD management
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* Author: Chloe M.
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*/
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#ifndef _MM_VAD_H_
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#define _MM_VAD_H_ 1
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#include <stdef.h>
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#include <ke/spinlock.h>
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#define VAD_FROM_VMA(VMA) \
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((MM_VAD *)(VMA))
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/*
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* A virtual address descriptor represents a specific
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* page of memory.
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*
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* @Next: Next free page
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* @Prev: Previous free page
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*/
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typedef struct _MM_VAD {
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struct _MM_VAD *Next;
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struct _MM_VAD *Prev;
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} MM_VAD;
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/*
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* Represents a virtual address descriptor list
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*
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* @First: First entry in VAD list
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* @Last: Last entry in VAD list
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* @Lock: Lock protecting this VAD list
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*/
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typedef struct {
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MM_VAD *First;
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MM_VAD *Last;
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SPINLOCK Lock;
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} MM_VAD_LIST;
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/*
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* Append a VAD to VAD list
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*
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* @List: VAD list to append to
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* @Vad: VAD list to append
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*/
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VOID MmVadListAppend(MM_VAD_LIST *List, MM_VAD *Vad);
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/*
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* Pop a VAD from a VAD list
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*
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* @List: VAD list to pop from
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*
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* Returns NULL if no more entries
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*/
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MM_VAD *MmVadListPop(MM_VAD_LIST *List);
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#endif /* !_MM_VAD_H_ */
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