Lines Matching +full:address +full:- +full:aligned

4  * SPDX-License-Identifier: Apache-2.0
21  * @defgroup mem-demand-paging Demand Paging APIs
74 	 * excluding the first and last (hence, NUM_SLOTS - 1).
85  * Evict a page-aligned virtual memory region to the backing store
90  * marked as available for mappings or page-ins.
99  * called by ISRs as the backing store may be in-use.
101  * @param addr Base page-aligned virtual address
102  * @param size Page-aligned data region size
104  * @retval -ENOMEM Insufficient space in backing store to satisfy request.
117  * called by ISRs as the backing store may be in-use.
119  * @param addr Base page-aligned virtual address
120  * @param size Page-aligned data region size
125  * Pin an aligned virtual data region, paging in as necessary
132  * called by ISRs as the backing store may be in-use.
134  * @param addr Base page-aligned virtual address
135  * @param size Page-aligned data region size
140  * Un-pin an aligned virtual data region
146  * @param addr Base page-aligned virtual address
147  * @param size Page-aligned data region size
187  * Get the backing store page-in timing histogram
198  * Get the backing store page-out timing histogram
215  * @defgroup mem-demand-paging-eviction Eviction Algorithm APIs
255  * The architecture-specific memory fault handler will invoke this to tell the
256  * eviction algorithm the provided physical address belongs to a page frame
262  * @param [in] phys The physical address being accessed
317  * @defgroup mem-demand-paging-backing-store Backing Store APIs
325  * The returned location token must be unique to the mapped virtual address.
327  * contents for later retrieval. The location value must be page-aligned.
332  * clean copy. This clean copy may be updated on page-out, or used to
339  * k_mem_page_frame_to_virt(pf) will indicate the virtual address the page is
341  * entire address space may simply generate location tokens purely as a
342  * function of that virtual address with no other management necessary.
347  * function should return -ENOMEM even if one location is available.
351  * @param pf Virtual address to obtain a storage location
355  * @return -ENOMEM Backing store is full
365  * this address may be re-used for some other data page.
374  * Obtain persistent location token for on-demand content
381  * also be used e.g. to implement file-based mmap().
383  * @param addr Virtual address to obtain a location token for
392  * Immediately before this is called, K_MEM_SCRATCH_PAGE will be mapped read-write
405  * Immediately before this is called, K_MEM_SCRATCH_PAGE will be mapped read-write
416  * Update internal accounting after a page-in
419  * have been* re-locked, making it safe to access the k_mem_page_frame data.
423  * The primary use-case for this is to update custom fields for the backing
425  * if it is paged out again. This may be a no-op in some implementations.
427  * If the backing store caches paged-in data pages, this is the appropriate
445  * - Initialize any internal data structures and accounting for the backing
447  * - If the backing store already contains all or some loaded kernel data pages