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

4  * SPDX-License-Identifier: Apache-2.0
21  * @brief Address offset of permanent virtual mapping from physical address.
23  * This is the offset to subtract from a virtual address mapped in the
24  * kernel's permanent mapping of RAM, to obtain its physical address.
41 #define K_MEM_VIRT_OFFSET	((CONFIG_KERNEL_VM_BASE + CONFIG_KERNEL_VM_OFFSET) - \
48  * @brief Get physical address from virtual address.
52  * @param virt Virtual address
54  * @return Physical address.
56 #define K_MEM_PHYS_ADDR(virt)	((virt) - K_MEM_VIRT_OFFSET)
59  * @brief Get virtual address from physical address.
63  * @param phys Physical address
65  * @return Virtual address.
87  * @brief Get physical address from virtual address.
93  * @param virt Virtual address
95  * @return Physical address.
103 		 "address %p not in permanent mappings", virt);  in k_mem_phys_addr()
115 		 "address %p not in permanent mappings", virt);  in k_mem_phys_addr()
117 	/* Should be identity-mapped */  in k_mem_phys_addr()
128 		 "physical address 0x%lx not in RAM",  in k_mem_phys_addr()
140  * @brief Get virtual address from physical address.
146  * @param phys Physical address
148  * @return Virtual address.
154 		"physical address 0x%lx not in RAM", (unsigned long)phys);  in k_mem_virt_addr()
166 		 "physical address 0x%lx not in RAM", (unsigned long)phys);  in k_mem_virt_addr()
181  * Map a physical memory region into the kernel's virtual address space
183  * This function is intended for mapping memory-mapped I/O regions into
184  * the virtual address space. Given a physical address and a size, return a
185  * linear address representing the base of where the physical region is mapped
186  * in the virtual address space for the Zephyr kernel.
192  * for the kernel. This function will choose the virtual address
200  * A caching mode must be selected. By default, the region is read-only
204  * If there is insufficient virtual address space for the mapping this will
219  * @param[out] virt_ptr Output virtual address storage location
220  * @param[in]  phys Physical address base of the memory region
228  * Unmap a virtual memory region from kernel's virtual address space.
238  * this can be used with the virtual address as returned by
251  * @param virt Starting address of the virtual address region to be unmapped.
252  * @param size Size of the virtual address region
257  * Map memory into virtual address space with guard pages.
259  * This maps memory into virtual address space with a preceding and
264  * virtual address space with a preceding and a succeeding guard pages.
265  * Given a physical address and a size, return a linear address representing
266  * the base of where the physical region is mapped in the virtual address
270  * for the kernel. This function will choose the virtual address
281  * The returned virtual memory pointer will be page-aligned. The size
282  * parameter, and any base address for re-mapping purposes must be page-
283  * aligned.
294  * @param phys Physical address base of the memory region if not requesting
295  *             anonymous memory. Must be page-aligned.
296  * @param size Size of the memory mapping. This must be page-aligned.
300  * @return The mapped memory location, or NULL if insufficient virtual address
307  * Un-map memory mapped via k_mem_map_phys_guard().
309  * This removes the memory mappings for the provided page-aligned region,
320  * @param addr Page-aligned memory region base virtual address
321  * @param size Page-aligned memory region size