mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2026-02-19 16:45:45 -05:00
6cd736cfeb
* arm-cortex-r82: Add MPU support This commit introduces support for the Memory Protection Unit (MPU) to the ARM Cortex-R82 port. The MPU enhances system security by allowing the definition of memory regions with specific access permissions. The following changes have been made: - Added MPU configuration functions in `port.c` to set up memory regions and their attributes. - Updated `portASM.S` to include assembly routines for MPU and context switching with MPU support. - Created `mpu_wrappers_v2_asm.c` to provide assembly wrappers for MPU operations. - Updated `portmacro.h` to include MPU-related macros and definitions. - Modified `task.h` to include MPU-related task attributes. - Updated `CMakeLists.txt` to include the new MPU source file. - Enhanced the `README.md` with instructions on MPU configuration. Signed-off-by: Ahmed Ismail <Ahmed.Ismail@arm.com> * cortex-r82: Minor code improvements This commit includes minor code improvements to enhance readability and maintainability of the Cortex-R82 port files. Changes include refactoring variable names, optimizing comments, and improving code structure without altering functionality. Signed-off-by: Ahmed Ismail <Ahmed.Ismail@arm.com> * tasks: Disable stack-depth check if MPU wrappers is set This stack-depth check should not be performed for ports where portUSING_MPU_WRAPPERS is set to 1. In this case, pxTopOfStack and pxNewTCB->pxTopOfStack reside in different memory regions: pxTopOfStack is in unprivileged SRAM, while pxNewTCB->pxTopOfStack is in privileged SRAM. This is because pxPortInitialiseStack() returns the address of `ullContext` array rather than the decremented pxTopOfStack, as is done in the non-MPU case. Consequently, this check is not valid in this scenario. Signed-off-by: Ahmed Ismail <Ahmed.Ismail@arm.com> --------- Signed-off-by: Ahmed Ismail <Ahmed.Ismail@arm.com> |
||
|---|---|---|
| .. | ||
| find_replace.sh | ||
| kernel_checker.py | ||
| manifest_updater.py | ||