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fix(heap): Update the heap memory layout on esp32p4 target

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- fix the value of SOC_ROM_STACK_START in soc.h
- Update the memory usage of ROM bootloader appendix in bootloader.ld
- Update the soc_memory_regions table to minimize the number of regions
  created after the startup stack is added back as a heap.
This commit is contained in:
Guillaume Souchere
2023-10-26 09:41:53 +02:00
parent 365123dfaa
commit fd2b8b5eb3
4 changed files with 26 additions and 28 deletions
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24
components/bootloader/subproject/main/ld/esp32p4/bootloader.ld
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@@ -9,9 +9,9 @@
* Make sure the bootloader can load into main memory without overwriting itself.
*
* ESP32-P4 ROM static data usage is as follows:
* - 0x4086ad08 - 0x4087c610: Shared buffers, used in UART/USB/SPI download mode only
* - 0x4087c610 - 0x4087e610: CPU1 stack, can be reclaimed as heap after RTOS startup
* - 0x4087e610 - 0x40880000: ROM .bss and .data (not easily reclaimable)
* - 0x4ff296b8 - 0x4ff3afc0: Shared buffers, used in UART/USB/SPI download mode only
* - 0x4ff3afc0 - 0x4ff3fba4: CPU1 stack, can be reclaimed as heap after RTOS startup
* - 0x4ff3fba4 - 0x4ff40000: ROM .bss and .data (not easily reclaimable)
*
* The 2nd stage bootloader can take space up to the end of ROM shared
* buffers area (0x4087c610).
@@ -217,34 +217,38 @@ SECTIONS
/**
* Appendix: Memory Usage of ROM bootloader
*
* 0x4086ad08 ------------------> _dram0_0_start
* 0x4ff296b8 ------------------> _dram0_0_start
* | |
* | |
* | | 1. Large buffers that are only used in certain boot modes, see shared_buffers.h
* | |
* | |
* 0x4087c610 ------------------> __stack_sentry
* 0x4ff3afc0 ------------------> __stack_sentry
* | |
* | | 2. Startup pro cpu stack (freed when IDF app is running)
* | |
* 0x4087e610 ------------------> __stack (pro cpu)
* 0x4ff3cfc0 ------------------> __stack (pro cpu)
* | |
* | | Startup app cpu stack
* | |
* 0x4ff3efc0 ------------------> __stack_app (app cpu)
* | |
* | |
* | | 3. Shared memory only used in startup code or nonos/early boot*
* | | (can be freed when IDF runs)
* | |
* | |
* 0x4087f564 ------------------> _dram0_rtos_reserved_start
* 0x4ff3fba4 ------------------> _dram0_rtos_reserved_start
* | |
* | |
* | | 4. Shared memory used in startup code and when IDF runs
* | |
* | |
* 0x4087fab0 ------------------> _dram0_rtos_reserved_end
* 0x4ff3ff94 ------------------> _dram0_rtos_reserved_end
* | |
* 0x4087fce8 ------------------> _data_start_interface
* 0x4ff3ffc8 ------------------> _data_start_interface
* | |
* | | 5. End of DRAM is the 'interface' data with constant addresses (ECO compatible)
* | |
* 0x40880000 ------------------> _data_end_interface
* 0x4ff40000 ------------------> _data_end_interface
*/