Before:
The cache won't be disabled when XIP on psram. But during flash
erasing/programming, read data will be courrupt.
When XIP in psram is enabled, the image is not mapped to the cache so
usually there will be no flash access. The only way to read from flash
is via the driver or use mmap. The driver has protection during erasing,
while th mmap region not.
Now:
Mmap APIs provide a flag to make mmap->unmap region mutually exclusive
to flash erase/programming when XIP from psram. SPI Flash write APIs
will benefit from this. When the flag is used, no concurrent access to
mapped region will happen while writing; otherwise the cache will be
disable to avoid data corruption.
Most ESP-IDF APIs calls mmap with this flag. As for users calling
mmap-like APIs directly, they can choose whether to enable this by a
flag.
Closes https://github.com/espressif/esp-idf/issues/14897
Three host_test CMakeLists.txt files relied on idioms tied to a
specific build system layout. Make them portable:
- spiffs/host_test and esp_partition/host_test/partition_api_test
passed a hard-coded "<project>.elf" target name to add_dependencies().
Use ${project_elf}, the canonical variable that resolves to the live
executable target name in either build system.
- nvs_flash/host_test/nvs_page_test linked --coverage using the plain
signature of target_link_libraries. CMake forbids mixing plain and
keyword signatures on the same target; the component library link
already uses the keyword form. Switch the --coverage link to the
keyword signature.
* Users can now use libbsd string.h and sys/cdefs.h functionality
(e.g., strlcpy, containerof) on Linux by just including
string.h or sys/cdefs.h. In other words, the includes are the same
on the Linux target as well as on chips targets (ESP32, etc.).
* libbsd linking is done by the linux component (belongs to common
components) now instead of handling it separately in each component
This fixes the issue that "idf.py partition-table" had to be run
manually in order for the partition table to be generated, when
building for linux target.
Added statistics and wear simulation functions to support migration of
remaining storage related host tests from fixture to linux implementation
of esp_partition.
All the partition handling API functions and data-types were moved from the 'spi_flash' component to the new one named 'esp_partition'. See Storage 5.x migration guide for more details
