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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/include/asm-generic/4level-fixup.h
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#ifndef _4LEVEL_FIXUP_H

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#define _4LEVEL_FIXUP_H

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#define __ARCH_HAS_4LEVEL_HACK

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#define __PAGETABLE_PUD_FOLDED

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#define PUD_SIZE			PGDIR_SIZE

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#define PUD_MASK			PGDIR_MASK

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#define PTRS_PER_PUD			1

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#define pud_t				pgd_t

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#define pmd_alloc(mm, pud, address) \

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	((unlikely(pgd_none(*(pud))) && __pmd_alloc(mm, pud, address))? \

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 		NULL: pmd_offset(pud, address))

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#define pud_alloc(mm, pgd, address)	(pgd)

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#define pud_offset(pgd, start)		(pgd)

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#define pud_none(pud)			0

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#define pud_bad(pud)			0

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#define pud_present(pud)		1

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#define pud_ERROR(pud)			do { } while (0)

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#define pud_clear(pud)			pgd_clear(pud)

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#define pud_val(pud)			pgd_val(pud)

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#define pud_populate(mm, pud, pmd)	pgd_populate(mm, pud, pmd)

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#define pud_page(pud)			pgd_page(pud)

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#define pud_page_vaddr(pud)		pgd_page_vaddr(pud)

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#undef pud_free_tlb

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#define pud_free_tlb(tlb, x, addr)	do { } while (0)

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#define pud_free(mm, x)			do { } while (0)

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#define __pud_free_tlb(tlb, x, addr)	do { } while (0)

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#undef  pud_addr_end

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#define pud_addr_end(addr, end)		(end)

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#endif

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