Commit Graph

13 Commits

Author SHA1 Message Date
Darian Leung
db26ff2503 freertos: Fix vTaskSuspendAll() and xTaskResumeAll()
This commit fixes vTaskSuspendAll() and xTaskResumeAll() in the following ways.

- For vTaskSuspendAll()
    - Sync function source code with upstream single core version
    - Clearly mark IDF additions
- For xTaskResumeAll()
    - Sync function source code with upstream single core version
    - Clearly mark IDF additions
    - Fix bug where cores other than core 0 were allowed to unwind pended ticks
2022-07-20 11:32:10 +08:00
Darian Leung
5971253971 freertos: Fix vTaskStepTick() and xTaskCatchUpTicks()
This commit fixes the following issues:

- Clearly mark IDF additions in vTaskStepTick() and xTaskCatchUpTicks()
- Add back vTaskSuspendAll()/xTaskResumeAll() to xTaskCatchUpTicks(). Scheduler
  suspension and resumption is required to unwind the pended ticks.
2022-07-20 11:32:10 +08:00
Darian Leung
7a4e1fee99 freertos: Fix xTaskIncrementTick()
Previously, xTaskIncrementTick() would always trigger a yield (i.e., return pdTRUE)
when called on core 1. This would mean core 1 would call vTaskSwitchContext() on
every tick, leading to uneccesary CPU overhead.

This commit fixes xTaskIncrementTick() in the following ways:

- Clearly mark IDF additions in xTaskIncrementTick()
- Moved esp_vApplicationTickHook() to be called direclty in xPortSysTickHandler() in order to
  simplify xTaskIncrementTick().
- Only core 0 calls xTaskIncrementTick() in order to simplify the function's logic. Core 0 is
  solely responsible for managing xTickCount and xPendedTicks
- All other cores call xTaskIncrementTickOtherCores() instead which is a simplified version of
  xTaskIncrementTick() and handles the following:
    - Check if core 0 has unblocked a higher priority task to run
    - Check if the current core requires time slicing
    - Call vApplicationTickHook()
2022-07-20 11:31:50 +08:00
Jakob Hasse
0adb313441 bugfix (freertos): removed unused variable in tasks.c 2022-07-11 18:18:09 +08:00
Darian Leung
1625a3aae2 freertos: Fix event group task list race condition
FreeRTOS synchronization primitives (e.g., queues, eventgroups) use various event lists (i.e., task lists) to track what
tasks are blocked on a current primitive. Usually these event lists are accessed via one of the event lists functions
(such as vTask[PlaceOn|RemoveFrom]UnorderedEventList()), which in turn ensure that the global task list spinlock
(xTaskQueueMutex) is taken when accessing these lists.

However, some functions in event_groups.c manually traverse their event lists. Thus if a tick interrupt occurs on
another core during traversal and that tick interrupt unblocks a task on the event list being traversed, the event list
will be corrupted.

This commit modifies the following event_groups.c functions so that they take the global task list lock before
traversing their event list.

- xEventGroupSetBits()
- vEventGroupDelete()
2022-06-30 20:12:26 +08:00
Darian Leung
d8eb55d83b freertos: Add newlib dynamic reentrancy support
SMP FreeRTOS adds support for dynamic reentrancy in the following commit:
34b8e24d7c

This commit does the following:

- Pulls in the upstream changes
- Move __getreent() to "freertos_tasks_c_additions.h"
- Add the required configNEWLIB_REENTRANT_IS_DYNAMIC to SMP FreeRTOS port
2022-06-02 15:42:02 +08:00
Darian Leung
5f5daaa420 freertos: Remove legacy hooks
This commit refactors the legacy hooks as follows:

- Removed CONFIG_FREERTOS_LEGACY_HOOKS
- FreeRTOS hooks are now enabled via:
    - CONFIG_FREERTOS_USE_IDLE_HOOK
    - CONFIG_FREERTOS_USE_TICK_HOOK
- Update IDF hooks documentation
2022-02-18 19:56:35 +08:00
Darian Leung
1c60d6a895 freertos: Add SPDX license identifiers and update xtensa port files
This commit does the following:

- Adds SPDX license identifiers to FreeRTOS sources. Remove those FreeRTOS sources from
  the copyright ignore list.
- Update xtensa port files to match FreeRTOS v10.4.3. Added SPDX license identifiers
  to the port files.
- Fixed some improperly licensed files
- Removed portbenchmark.h from RISC-V port
2022-02-03 17:08:14 +08:00
Sudeep Mohanty
40c1f3e06e freertos: update module handles to struct type
This commit updates the handles for the timer, task and event_group
modules to struct type. This matches upstream freertos source.

Signed-off-by: Sudeep Mohanty <sudeep.mohanty@espressif.com>
2021-12-06 08:37:06 +05:30
Mahavir Jain
5d40016ddb freertos: fix thread safety for checking scheduler state
This issue was earlier fixed in commit 79e74e5d5f
but during migration to newer FreeRTOS release, it got introduced again.

This commit fixes thread safety issues with configASSERT() calls
regarding the value of uxSchedulerSuspended. A false negative
occurs if a context switch to the opposite core occurs in between
the getting the core ID and the assesment.

Relevant https://github.com/espressif/esp-idf/issues/4230
Closes https://github.com/espressif/esp-idf/issues/7726
Closes IDFGH-6041
2021-11-24 14:34:40 +05:30
Zim Kalinowski
04d80db499 freertos: Move Espressif's specific esp_reent_init into collective ifdef 2021-11-10 10:55:05 +08:00
Darian Leung
8babb3bca6 freertos: Fix SMP round robin scheduling
The previous SMP freertos round robin would skip over tasks when
time slicing. This commit implements a Best Effort Round Robin
where selected tasks are put to the back of the list, thus
makes the time slicing more fair.

- Documentation has been updated accordingly.
- Tidy up vTaskSwitchContext() to match v10.4.3 more
- Increased esp_ipc task stack size to avoid overflow

Closes https://github.com/espressif/esp-idf/issues/7256
2021-11-02 14:00:14 +08:00
Sudeep Mohanty
4846222102 freertos: update freertos folder structure to match upstream
The following changes have been made:
1. All FreeRTOS kernel source files are now placed in the
   freertos/FreeRTOS-Kernel folder to match with the upstream folder structure.
2. All kernel include files are now placed in freertos/FreeRTOS-Kernel/include.
3. All port files are now placed in freertos/FreeRTOS-Kernel/portable.
4. All additions/customizations are placed in freertos/esp_additions.
5. All other miscellaneous files (README, License files etc.) are moved to
   freertos/FreeRTOS-Kernel folder to match with the upstream.
6. Updated esp-cryptoauthlib to latest commit to resolve FreeRTOS
   include dependencies.

Signed-off-by: Sudeep Mohanty <sudeep.mohanty@espressif.com>
2021-10-29 12:05:13 +08:00