84  * 1024-entry pgdir pointing to 1-page 1024-entry PTE pages.  -- paulus
107 	printk(KERN_ERR "%s:%d: bad pte "PTE_FMT".\n", \
114  * Bits in a linux-style PTE.  These match the bits in the
115  * (hardware-defined) PTE as closely as possible.
124  * Where possible we make the Linux PTE bits match up with this
137  * - All other bits of the PTE are loaded into TLBLO without
139  * software PTE bits.  We actually use bits 21, 24, 25, and
146 #define _PAGE_PRESENT	0x002	/* software: PTE contains a translation */
180  * PTE if CONFIG_SMP is defined (hash_page does this); there is no need
181  * to have it in the Linux PTE, and in fact the bit could be reused for
220 #define pte_none(pte)		((pte_val(pte) & ~_PTE_NONE_MASK) == 0)  argument
221 #define pte_present(pte)	(pte_val(pte) & _PAGE_PRESENT)  argument
244 static inline int pte_read(pte_t pte)  { return pte_val(pte) & _PAGE_USER; }  in pte_read()  argument
245 static inline int pte_write(pte_t pte) { return pte_val(pte) & _PAGE_RW; }  in pte_write()  argument
246 static inline int pte_exec(pte_t pte)  { return pte_val(pte) & _PAGE_EXEC; }  in pte_exec()  argument
247 static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; }  in pte_dirty()  argument
248 static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; }  in pte_young()  argument
250 static inline void pte_uncache(pte_t pte) { pte_val(pte) |= _PAGE_NO_CACHE; }  in pte_uncache()  argument
251 static inline void pte_cache(pte_t pte)   { pte_val(pte) &= ~_PAGE_NO_CACHE; }  in pte_cache()  argument
253 static inline pte_t pte_rdprotect(pte_t pte) \  in pte_rdprotect()  argument
254 		{ pte_val(pte) &= ~_PAGE_USER; return pte; }  in pte_rdprotect()
255 static inline pte_t pte_wrprotect(pte_t pte) \  in pte_wrprotect()  argument
256 	{ pte_val(pte) &= ~(_PAGE_RW | _PAGE_HWWRITE); return pte; }  in pte_wrprotect()
257 static inline pte_t pte_exprotect(pte_t pte) \  in pte_exprotect()  argument
258 	{ pte_val(pte) &= ~_PAGE_EXEC; return pte; }  in pte_exprotect()
259 static inline pte_t pte_mkclean(pte_t pte) \  in pte_mkclean()  argument
260 	{ pte_val(pte) &= ~(_PAGE_DIRTY | _PAGE_HWWRITE); return pte; }  in pte_mkclean()
261 static inline pte_t pte_mkold(pte_t pte) \  in pte_mkold()  argument
262 	{ pte_val(pte) &= ~_PAGE_ACCESSED; return pte; }  in pte_mkold()
264 static inline pte_t pte_mkread(pte_t pte) \  in pte_mkread()  argument
265 	{ pte_val(pte) |= _PAGE_USER; return pte; }  in pte_mkread()
266 static inline pte_t pte_mkexec(pte_t pte) \  in pte_mkexec()  argument
267 	{ pte_val(pte) |= _PAGE_USER | _PAGE_EXEC; return pte; }  in pte_mkexec()
268 static inline pte_t pte_mkwrite_novma(pte_t pte) \  in pte_mkwrite_novma()  argument
269 	{ pte_val(pte) |= _PAGE_RW; return pte; }  in pte_mkwrite_novma()
270 static inline pte_t pte_mkdirty(pte_t pte) \  in pte_mkdirty()  argument
271 	{ pte_val(pte) |= _PAGE_DIRTY; return pte; }  in pte_mkdirty()
272 static inline pte_t pte_mkyoung(pte_t pte) \  in pte_mkyoung()  argument
273 	{ pte_val(pte) |= _PAGE_ACCESSED; return pte; }  in pte_mkyoung()
282 	pte_t pte;  in mk_pte_phys()  local
283 	pte_val(pte) = physpage | pgprot_val(pgprot);  in mk_pte_phys()
284 	return pte;  in mk_pte_phys()
287 static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)  in pte_modify()  argument
289 	pte_val(pte) = (pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot);  in pte_modify()
290 	return pte;  in pte_modify()
294  * Atomic PTE updates.
297  * the old pte value.
299  * 32 bits of the PTE regardless of whether PTEs are 32 or 64 bits.
322  * set_pte stores a linux PTE into the linux page table.
324 static inline void set_pte(pte_t *ptep, pte_t pte)  in set_pte()  argument
326 	*ptep = pte;  in set_pte()
366 /* our pmd entry is an effective address of pte table*/
397 #define __pte_to_swp_entry(pte)	((swp_entry_t) { pte_val(pte) >> 2 })  argument
400 static inline bool pte_swp_exclusive(pte_t pte)  in pte_swp_exclusive()  argument
402 	return pte_val(pte) & _PAGE_SWP_EXCLUSIVE;  in pte_swp_exclusive()
405 static inline pte_t pte_swp_mkexclusive(pte_t pte)  in pte_swp_mkexclusive()  argument
407 	pte_val(pte) |= _PAGE_SWP_EXCLUSIVE;  in pte_swp_mkexclusive()
408 	return pte;  in pte_swp_mkexclusive()
411 static inline pte_t pte_swp_clear_exclusive(pte_t pte)  in pte_swp_clear_exclusive()  argument
413 	pte_val(pte) &= ~_PAGE_SWP_EXCLUSIVE;  in pte_swp_clear_exclusive()
414 	return pte;  in pte_swp_clear_exclusive()