mm.h File Reference

#include <zephyr/sys/util.h>
#include <zephyr/toolchain.h>
#include <stdint.h>
#include <stddef.h>
#include <inttypes.h>
#include <zephyr/sys/__assert.h>
#include <zephyr/sys/mem_manage.h>

Go to the source code of this file.

Macros
#define	K_MEM_VIRT_OFFSET
	Address offset of permanent virtual mapping from physical address.
#define	K_MEM_PHYS_ADDR(virt)   ((virt) - K_MEM_VIRT_OFFSET)
	Get physical address from virtual address.
#define	K_MEM_VIRT_ADDR(phys)   ((phys) + K_MEM_VIRT_OFFSET)
	Get virtual address from physical address.

Functions
static uintptr_t	k_mem_phys_addr (void *virt)
	Get physical address from virtual address.
static void *	k_mem_virt_addr (uintptr_t phys)
	Get virtual address from physical address.
void	k_mem_map_phys_bare (uint8_t **virt_ptr, uintptr_t phys, size_t size, uint32_t flags)
	Map a physical memory region into the kernel's virtual address space.
void	k_mem_unmap_phys_bare (uint8_t *virt, size_t size)
	Unmap a virtual memory region from kernel's virtual address space.
void *	k_mem_map_phys_guard (uintptr_t phys, size_t size, uint32_t flags, bool is_anon)
	Map memory into virtual address space with guard pages.
void	k_mem_unmap_phys_guard (void *addr, size_t size, bool is_anon)
	Un-map memory mapped via k_mem_map_phys_guard().