How to manually allocate memory and flash, where is the allocation table?

Troubleshooting
1

I want to increase RT-Thread memory, how do I modify it?

2

The flash area partitioning is modified in the board’s ptab.yaml file.
The thread stack size for rt_thread is controlled by macros. For example, the main thread stack is controlled by RT_MAIN_THREAD_STACK_SIZE, and can be modified in menuconfig.

3

I saw the main thread, but what about the total capacity? Is the stack capacity of RT-Thread directly using the entire PSRAM area defined in ptab.yaml, or do LVGL and RT-Thread both use the system malloc, and the system directly uses the entire PSRAM, with LVGL and RT-Thread all using dynamic allocation, without needing to partition the PSRAM area themselves? Is that the case?