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* 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> |
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| .. | ||
| atomic.h | ||
| CMakeLists.txt | ||
| croutine.h | ||
| deprecated_definitions.h | ||
| event_groups.h | ||
| FreeRTOS.h | ||
| list.h | ||
| message_buffer.h | ||
| mpu_prototypes.h | ||
| mpu_syscall_numbers.h | ||
| mpu_wrappers.h | ||
| newlib-freertos.h | ||
| picolibc-freertos.h | ||
| portable.h | ||
| projdefs.h | ||
| queue.h | ||
| semphr.h | ||
| stack_macros.h | ||
| StackMacros.h | ||
| stdint.readme | ||
| stream_buffer.h | ||
| task.h | ||
| timers.h | ||