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SourceVuESP-IDF Framework and ExamplesESP-IDFcache_ll_l1_get_bus()

cache_ll_l1_get_bus() function

Get the buses of a particular cache that are mapped to a virtual address range External virtual address can only be accessed when the involved cache buses are enabled. This API is to get the cache buses where the memory region (from `vaddr_start` to `vaddr_start + len`) reside.

Syntax

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Summary

Declaration

from cache_ll.h:99

__attribute__((always_inline)) #endif static inline cache_bus_mask_t cache_ll_l1_get_bus(uint32_t cache_id, uint32_t vaddr_start, uint32_t len);

Arguments

Argument

Description

cache_id

cache ID (when l1 cache is per core)

vaddr_start

virtual address start

len

vaddr length

References

Code

Location

Referrer

static inline cache_bus_mask_t cache_ll_l1_get_bus(uint32_t cache_id, uint32_t vaddr_start, uint32_t len)

cache_bus_mask_t bus_mask = cache_ll_l1_get_bus(0, drom_load_addr_aligned, drom_size);

bootloader_utility.c:931

set_cache_and_start_app()

bus_mask = cache_ll_l1_get_bus(0, irom_load_addr_aligned, irom_size);

bootloader_utility.c:933

set_cache_and_start_app()

bus_mask = cache_ll_l1_get_bus(1, drom_load_addr_aligned, drom_size);

bootloader_utility.c:937

set_cache_and_start_app()

bus_mask = cache_ll_l1_get_bus(1, irom_load_addr_aligned, irom_size);

bootloader_utility.c:939

set_cache_and_start_app()

return cache_ll_l1_get_bus(0, vaddr_start, len);

esp_mmu_map.c:125

s_get_bus_mask()

cache_bus_mask_t bus_mask = cache_ll_l1_get_bus(0, vaddr_start, size);

esp_mmu_map.c:428

bus_mask = cache_ll_l1_get_bus(0, vaddr_start, size);

esp_mmu_map.c:431

Call Tree

cache_ll_l1_get_bus() is called by 3 functions and calls 2 functions:

set_cache_and_start_app()

s_get_bus_mask()

cache_ll_l1_get_bus()

__assert_func()

Data Use

cache_ll_l1_get_bus() reads 5 variables:

cache_bus_mask_t::CACHE_BUS_IBUS0

cache_bus_mask_t::CACHE_BUS_IBUS1

cache_bus_mask_t::CACHE_BUS_IBUS2

cache_bus_mask_t::CACHE_BUS_DBUS0

cache_bus_mask_t::CACHE_BUS_DBUS1

cache_ll_l1_get_bus()

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