system_mm.h File Reference

Memory Management Driver APIs. More...

#include <zephyr/kernel.h>

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Data Structures
struct	sys_mm_drv_region
	Represents an available memory region. More...

Macros
#define	SYS_MM_MEM_CACHE_NONE   2
#define	SYS_MM_MEM_CACHE_WT   1
#define	SYS_MM_MEM_CACHE_WB   0
#define	SYS_MM_MEM_CACHE_MASK   (BIT(3) - 1)
#define	SYS_MM_MEM_PERM_RW   BIT(3)
#define	SYS_MM_MEM_PERM_EXEC   BIT(4)
#define	SYS_MM_MEM_PERM_USER   BIT(5)
#define	SYS_MM_DRV_MEMORY_REGION_FOREACH(regions, iter)    for (iter = regions; iter->size; iter++)
	Iterates over an array of regions returned by sys_mm_drv_query_memory_regions. More...

Functions
int	sys_mm_drv_map_page (void *virt, uintptr_t phys, uint32_t flags)
	Map one physical page into the virtual address space. More...
int	sys_mm_drv_map_region (void *virt, uintptr_t phys, size_t size, uint32_t flags)
	Map a region of physical memory into the virtual address space. More...
int	sys_mm_drv_map_array (void *virt, uintptr_t *phys, size_t cnt, uint32_t flags)
	Map an array of physical memory into the virtual address space. More...
int	sys_mm_drv_unmap_page (void *virt)
	Remove mapping for one page of the provided virtual address. More...
int	sys_mm_drv_unmap_region (void *virt, size_t size)
	Remove mappings for a provided virtual address range. More...
int	sys_mm_drv_page_phys_get (void *virt, uintptr_t *phys)
	Get the mapped physical memory address from virtual address. More...
int	sys_mm_drv_remap_region (void *virt_old, size_t size, void *virt_new)
	Remap virtual pages into new address. More...
int	sys_mm_drv_move_region (void *virt_old, size_t size, void *virt_new, uintptr_t phys_new)
	Physically move memory, with copy. More...
int	sys_mm_drv_move_array (void *virt_old, size_t size, void *virt_new, uintptr_t *phys_new, size_t phys_cnt)
	Physically move memory, with copy. More...
int	sys_mm_drv_update_page_flags (void *virt, uint32_t flags)
	Update memory page flags. More...
int	sys_mm_drv_update_region_flags (void *virt, size_t size, uint32_t flags)
	Update memory region flags. More...
const struct sys_mm_drv_region *	sys_mm_drv_query_memory_regions (void)
	Query available memory regions. More...
void	sys_mm_drv_query_memory_regions_free (const struct sys_mm_drv_region *regions)
	Free the memory array returned by sys_mm_drv_query_memory_regions. More...

Detailed Description

Memory Management Driver APIs.

This contains APIs for a system-wide memory management driver. Only one instance is permitted on the system.