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SourceVuESP-IDF Framework and ExamplesESP-IDFmem_block_

mem_block_ struct

MMU Memory Mapping Driver Driver Backgrounds: -------------------------------------------------------------------------------------------------------- Memory Pool | -------------------------------------------------------------------------------------------------------- | Memory Region 0 | Memory Region 1 | ... | -------------------------------------------------------------------------------------------------------- | Block 0 | Slot 0 | Block 1 | Block 2 | ... | Slot 1 (final slot) | ... | -------------------------------------------------------------------------------------------------------- - A block is a piece of vaddr range that is dynamically mapped. Blocks are doubly linked: Block 0 Block 1 Block 2 - A Slot is the vaddr range between 2 blocks. Struct for a block

Syntax

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Summary

Declaration

from esp_mmu_map.c:70

typedef struct mem_block_ { uint32_t laddr_start; uint32_t laddr_end; intptr_t vaddr_start; intptr_t vaddr_end; size_t size; int caps; uint32_t paddr_start; uint32_t paddr_end; mmu_target_t target; TAILQ_ENTRY(mem_block_) entries; } mem_block_t;

Fields

Field

Declared as

mem_block_::laddr_start

uint32_t

mem_block_::laddr_end

uint32_t

mem_block_::vaddr_start

intptr_t

mem_block_::vaddr_end

intptr_t

mem_block_::size

size_t

mem_block_::caps

int

mem_block_::paddr_start

uint32_t

mem_block_::paddr_end

uint32_t

mem_block_::target

mem_block_::entries

TAILQ_ENTRY(mem_block_)

References

Code

Location

Scope

Referrer

typedef struct mem_block_ {

esp_mmu_map.c:70

esp_mmu_map.c:81

TAILQ_ENTRY(mem_block_) entries; //link entry

esp_mmu_map.c:80

esp_mmu_map.c:81

TAILQ_HEAD(mem_block_head_, mem_block_) mem_block_head; //link head of allocated blocks within this region

esp_mmu_map.c:95

mem_block_head_

mem_block_t *mem_block = NULL;

esp_mmu_map.c:345

esp_mmu_paddr_find_caps()

mem_block_t *found_block = NULL;

esp_mmu_map.c:347

esp_mmu_paddr_find_caps()

mem_block_t *dummy_head = NULL;

esp_mmu_map.c:462

mem_block_t *dummy_tail = NULL;

esp_mmu_map.c:463

mem_block_t *new_block = NULL;

esp_mmu_map.c:464

dummy_head = (mem_block_t *)heap_caps_calloc(1, sizeof(mem_block_t), MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);

esp_mmu_map.c:467

dummy_tail = (mem_block_t *)heap_caps_calloc(1, sizeof(mem_block_t), MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);

esp_mmu_map.c:477

mem_block_t *mem_block = NULL;

esp_mmu_map.c:489

new_block = (mem_block_t *)heap_caps_calloc(1, sizeof(mem_block_t), MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);

esp_mmu_map.c:531

mem_block_t *found_block = NULL; //This stands for the block we found, whose slot between its prior block is where we will insert the new block to

esp_mmu_map.c:540

free(dummy_tail);

esp_mmu_map.c:589

free(dummy_head);

esp_mmu_map.c:592

mem_block_t *mem_block = NULL;

esp_mmu_map.c:637

esp_mmu_unmap()

mem_block_t *found_block = NULL;

esp_mmu_map.c:651

esp_mmu_unmap()

free(found_block);

esp_mmu_map.c:675

esp_mmu_unmap()

mem_block_t *mem_block = NULL;

esp_mmu_map.c:702

esp_mmu_map_dump_mapped_blocks()

mem_block_t *mem_block = NULL;

esp_mmu_map.c:731

esp_mmu_map_dump_mapped_blocks_private()

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Implementations

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Instances

Lifecycle

mem_block_ is freed by 2 symbols:

mem_block_

esp_mmu_unmap()