74 	 * NOTE: Instead of using N=16 as the contiguous block length, we use  in contpte_convert()
77 	 * NOTE: 'n' and 'c' are used to denote the "contiguous bit" being  in contpte_convert()
80 	 * We worry about two cases where contiguous bit is used:  in contpte_convert()
81 	 *  - When folding N smaller non-contiguous ptes as 1 contiguous block.  in contpte_convert()
82 	 *  - When unfolding a contiguous block into N smaller non-contiguous ptes.  in contpte_convert()
102 	 *  3) __set_ptes() to repaint contiguous block:  in contpte_convert()
113 	 * only ever see an invalid (0) entry, or the new contiguous TLB entry.  in contpte_convert()
115 	 * contiguous TLB entry, which is a micro-optimisation opportunity,  in contpte_convert()
120 	 * stale cached TLB entries. This could lead to a "contiguous bit  in contpte_convert()
123 	 * contiguous entry installed in its place.  in contpte_convert()
128 	 *  |RO,n|RO,n|RO,n|RW,n| <--- old page tables, all non-contiguous  in contpte_convert()
132 	 *  |RO,c|RO,c|RO,c|RO,c| <--- new page tables, all contiguous  in contpte_convert()
137 	 *  If both the old single (RW,n) and new contiguous (RO,c) TLB entries  in contpte_convert()
152 	 * entry as well as the new contiguous (RO,c) TLB entry), omitting the  in contpte_convert()
157 	 * cached (the N-1 non-contiguous ptes, and the single contiguous  in contpte_convert()
159 	 * non-contiguous pte TLB entries to be flushed, leaving only the  in contpte_convert()
160 	 * contiguous block TLB entry. This means that omitting the tlbi+dsb is  in contpte_convert()
181 	 *  3) __set_ptes() to repaint as non-contiguous:  in contpte_convert()
199 	 * guaranteed to remove the original large contiguous (RW,c) TLB entry,  in contpte_convert()
221 	 * with contiguous PFNs and matching prots. We ignore the state of the  in __contpte_try_fold()
222 	 * access and dirty bits for the purpose of deciding if its a contiguous  in __contpte_try_fold()
281 	 * We have already checked that the ptes are contiguous in  in __contpte_try_unfold()
297 	 * contiguous range cannot be unfolded or otherwise modified under our  in contpte_ptep_get()
356 	 * access and dirty bits from across all ptes in the contiguous block,  in contpte_ptep_get_lockless()
358 	 * contiguous range may be unfolded/modified/refolded under our feet.  in contpte_ptep_get_lockless()
361 	 * pfns are contiguous and that all pgprots are the same (ignoring  in contpte_ptep_get_lockless()
593 	 * Gather the access/dirty bits for the contiguous range. If nothing has  in contpte_ptep_set_access_flags()