84  * 1024-entry pgdir pointing to 1-page 1024-entry PTE pages.  -- paulus
108 	printk(KERN_ERR "%s:%d: bad pte "PTE_FMT".\n", \
115  * Bits in a linux-style PTE.  These match the bits in the
116  * (hardware-defined) PTE as closely as possible.
125  * Where possible we make the Linux PTE bits match up with this
138  * - All other bits of the PTE are loaded into TLBLO without
140  * software PTE bits.  We actually use bits 21, 24, 25, and
147 #define _PAGE_PRESENT	0x002	/* software: PTE contains a translation */
181  * PTE if CONFIG_SMP is defined (hash_page does this); there is no need
182  * to have it in the Linux PTE, and in fact the bit could be reused for
221 #define pte_none(pte)		((pte_val(pte) & ~_PTE_NONE_MASK) == 0)  argument
222 #define pte_present(pte)	(pte_val(pte) & _PAGE_PRESENT)  argument
245 static inline int pte_read(pte_t pte)  { return pte_val(pte) & _PAGE_USER; }  in pte_read()  argument
246 static inline int pte_write(pte_t pte) { return pte_val(pte) & _PAGE_RW; }  in pte_write()  argument
247 static inline int pte_exec(pte_t pte)  { return pte_val(pte) & _PAGE_EXEC; }  in pte_exec()  argument
248 static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; }  in pte_dirty()  argument
249 static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; }  in pte_young()  argument
251 static inline void pte_uncache(pte_t pte) { pte_val(pte) |= _PAGE_NO_CACHE; }  in pte_uncache()  argument
252 static inline void pte_cache(pte_t pte)   { pte_val(pte) &= ~_PAGE_NO_CACHE; }  in pte_cache()  argument
254 static inline pte_t pte_rdprotect(pte_t pte) \  in pte_rdprotect()  argument
255 		{ pte_val(pte) &= ~_PAGE_USER; return pte; }  in pte_rdprotect()
256 static inline pte_t pte_wrprotect(pte_t pte) \  in pte_wrprotect()  argument
257 	{ pte_val(pte) &= ~(_PAGE_RW | _PAGE_HWWRITE); return pte; }  in pte_wrprotect()
258 static inline pte_t pte_exprotect(pte_t pte) \  in pte_exprotect()  argument
259 	{ pte_val(pte) &= ~_PAGE_EXEC; return pte; }  in pte_exprotect()
260 static inline pte_t pte_mkclean(pte_t pte) \  in pte_mkclean()  argument
261 	{ pte_val(pte) &= ~(_PAGE_DIRTY | _PAGE_HWWRITE); return pte; }  in pte_mkclean()
262 static inline pte_t pte_mkold(pte_t pte) \  in pte_mkold()  argument
263 	{ pte_val(pte) &= ~_PAGE_ACCESSED; return pte; }  in pte_mkold()
265 static inline pte_t pte_mkread(pte_t pte) \  in pte_mkread()  argument
266 	{ pte_val(pte) |= _PAGE_USER; return pte; }  in pte_mkread()
267 static inline pte_t pte_mkexec(pte_t pte) \  in pte_mkexec()  argument
268 	{ pte_val(pte) |= _PAGE_USER | _PAGE_EXEC; return pte; }  in pte_mkexec()
269 static inline pte_t pte_mkwrite_novma(pte_t pte) \  in pte_mkwrite_novma()  argument
270 	{ pte_val(pte) |= _PAGE_RW; return pte; }  in pte_mkwrite_novma()
271 static inline pte_t pte_mkdirty(pte_t pte) \  in pte_mkdirty()  argument
272 	{ pte_val(pte) |= _PAGE_DIRTY; return pte; }  in pte_mkdirty()
273 static inline pte_t pte_mkyoung(pte_t pte) \  in pte_mkyoung()  argument
274 	{ pte_val(pte) |= _PAGE_ACCESSED; return pte; }  in pte_mkyoung()
283 	pte_t pte;  in mk_pte_phys()  local
284 	pte_val(pte) = physpage | pgprot_val(pgprot);  in mk_pte_phys()
285 	return pte;  in mk_pte_phys()
290 	pte_t pte;							   \
291 	pte_val(pte) = (((page - mem_map) << PAGE_SHIFT) + memory_start) |  \
293 	pte;								   \
296 static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)  in pte_modify()  argument
298 	pte_val(pte) = (pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot);  in pte_modify()
299 	return pte;  in pte_modify()
303  * Atomic PTE updates.
306  * the old pte value.
308  * 32 bits of the PTE regardless of whether PTEs are 32 or 64 bits.
331  * set_pte stores a linux PTE into the linux page table.
333 static inline void set_pte(pte_t *ptep, pte_t pte)  in set_pte()  argument
335 	*ptep = pte;  in set_pte()
375 /* our pmd entry is an effective address of pte table*/
406 #define __pte_to_swp_entry(pte)	((swp_entry_t) { pte_val(pte) >> 2 })  argument
409 static inline int pte_swp_exclusive(pte_t pte)  in pte_swp_exclusive()  argument
411 	return pte_val(pte) & _PAGE_SWP_EXCLUSIVE;  in pte_swp_exclusive()
414 static inline pte_t pte_swp_mkexclusive(pte_t pte)  in pte_swp_mkexclusive()  argument
416 	pte_val(pte) |= _PAGE_SWP_EXCLUSIVE;  in pte_swp_mkexclusive()
417 	return pte;  in pte_swp_mkexclusive()
420 static inline pte_t pte_swp_clear_exclusive(pte_t pte)  in pte_swp_clear_exclusive()  argument
422 	pte_val(pte) &= ~_PAGE_SWP_EXCLUSIVE;  in pte_swp_clear_exclusive()
423 	return pte;  in pte_swp_clear_exclusive()