include/asm-generic/pgtable-nopmd.h

Source file repositories/reference/linux-study-clean/include/asm-generic/pgtable-nopmd.h

File Facts

System
Linux kernel
Corpus path
include/asm-generic/pgtable-nopmd.h
Extension
.h
Size
2086 bytes
Lines
74
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

static inline int pud_none(pud_t pud)		{ return 0; }
static inline int pud_bad(pud_t pud)		{ return 0; }
static inline int pud_present(pud_t pud)	{ return 1; }
static inline int pud_user(pud_t pud)		{ return 0; }
static inline int pud_leaf(pud_t pud)		{ return 0; }
static inline void pud_clear(pud_t *pud)	{ }
#define pmd_ERROR(pmd)				(pud_ERROR((pmd).pud))

#define pud_populate(mm, pmd, pte)		do { } while (0)

/*
 * (pmds are folded into puds so this doesn't get actually called,
 * but the define is needed for a generic inline function.)
 */
#define set_pud(pudptr, pudval)			set_pmd((pmd_t *)(pudptr), (pmd_t) { pudval })

static inline pmd_t * pmd_offset(pud_t * pud, unsigned long address)
{
	return (pmd_t *)pud;
}
#define pmd_offset pmd_offset

#define pmd_val(x)				(pud_val((x).pud))
#define __pmd(x)				((pmd_t) { __pud(x) } )

#define pud_page(pud)				(pmd_page((pmd_t){ pud }))
#define pud_pgtable(pud)			((pmd_t *)(pmd_page_vaddr((pmd_t){ pud })))

/*
 * allocating and freeing a pmd is trivial: the 1-entry pmd is
 * inside the pud, so has no extra memory associated with it.
 */
#define pmd_alloc_one(mm, address)		NULL
static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
{
}
#define pmd_free_tlb(tlb, x, a)		do { } while (0)

#undef  pmd_addr_end
#define pmd_addr_end(addr, end)			(end)

#endif /* __ASSEMBLY__ */

#endif /* _PGTABLE_NOPMD_H */

Annotation

Implementation Notes