55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
#pragma once
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#include "mmuContext.h"
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#include "process.h"
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#include "stddef.h"
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#include "stdint.h"
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#include "types.h"
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struct uAddrSpace;
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struct uAddrVirtualReg;
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#define UA_MAP_SHARED (1 << 0)
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#define UA_MAP_PRIVATE (1 << 1)
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#define UA_MAP_FIXED (1 << 2)
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// TODO : move this struct to .c and add accessors
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struct uAddrVirtualReg {
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uaddr_t addr;
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size_t size;
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int right; // PAGING_MEM_*
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uint32_t offset; // in the mappedRessource
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uint flags;
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struct mappedRessource *res;
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struct uAddrVirtualReg *nextInAddrSpace, *prevInAddrSpace;
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struct uAddrVirtualReg *nextInMappedRes, *prevInMappedRes;
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};
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struct mappedRessourceOps {
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int (*open)(struct uAddrVirtualReg *vreg);
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int (*close)(struct uAddrVirtualReg *vreg);
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int (*unmap)(struct uAddrVirtualReg *vreg, uaddr_t addr, size_t size);
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int (*nopage)(struct uAddrVirtualReg *vreg, uaddr_t addr,
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int right); // Called by the pageflt handler when the page is missing
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};
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struct mappedRessource {
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int allowedRight; // PAGING_MEM_*
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struct mappedRessourceOps *ops;
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struct uAddrVirtualReg *listVirtualReg;
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void *customData;
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int (*onResMapped)(struct uAddrVirtualReg *reg); // Callabck for when the ressourced get mapped
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};
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struct uAddrSpace *uAddrSpaceCreate(struct process *proc);
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int uAddrSpaceDelete(struct uAddrSpace *addr);
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struct mmu_context *uAddrSpaceGetMMUContext(struct uAddrSpace *addr);
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int uAddrSpaceSetHeap(struct uAddrSpace *as, uaddr_t addr, size_t size);
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int uAddrSpaceHeapCheckNAlloc(struct uAddrSpace *as, vaddr_t addr);
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uaddr_t sysBrk(struct uAddrSpace *as, uaddr_t newHeapTop);
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int uAddrSpaceMmap(struct uAddrSpace *as, uaddr_t *uaddr, size_t size, uint32_t rights,
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uint32_t flags, struct mappedRessource *res, uint32_t offset);
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int uAddrSpaceUnmap(struct uAddrSpace *as, uaddr_t uaddr, size_t size);
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int uAddrSpaceSolvePageFault(struct uAddrSpace *as, vaddr_t faultAddr, int isWriteAccess);
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