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SourceVuESP-IDF Framework and ExamplesESP-IDFmmu_hal_unmap_region()

mmu_hal_unmap_region() function

To unmap a virtual address block that is mapped to a physical memory block previously

Syntax

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Summary

Declaration

Definition

from mmu_hal.h:73

void mmu_hal_unmap_region(uint32_t mmu_id, uint32_t vaddr, uint32_t len);

Implemented in mmu_hal.c:105

Arguments

Argument

Description

mmu_id

MMU ID

vaddr

start virtual address

len

length to be unmapped, in bytes

References

Code

Location

Referrer

void mmu_hal_unmap_region(uint32_t mmu_id, uint32_t vaddr, uint32_t len)

mmu_hal.c:105

void mmu_hal_unmap_region(uint32_t mmu_id, uint32_t vaddr, uint32_t len);

mmu_hal.h:73

mmu_hal_unmap_region(0, vaddr_start, size);

esp_mmu_map.c:608

s_unmapping_operation()

mmu_hal_unmap_region(1, vaddr_start, size);

esp_mmu_map.c:611

s_unmapping_operation()

Call Tree

mmu_hal_unmap_region() is called by 1 function and calls 6 functions:

s_unmapping_operation()

mmu_hal_unmap_region()

__assert_func()

mmu_ll_get_entry_id()

mmu_ll_set_entry_invalid()

mmu_hal_check_valid_ext_vaddr_region()

mmu_hal_pages_to_bytes()

abort()

Data Use

mmu_hal_unmap_region() reads 2 variables:

mmu_vaddr_t::MMU_VADDR_DATA

mmu_vaddr_t::MMU_VADDR_INSTRUCTION

mmu_hal_unmap_region()

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