This commit removes the updates the usage of queue locks in IDF FreeRTOS
Queue locks are present in Vanilla FreeRTOS to ensure that queue functions
behave deterministicly in critical sections (i.e., no walking linked lists
while interrupts are disabled). However, currently in IDF FreeRTOS...
- When configNUM_CORES > 1, IDF FreeRTOS drops the determinism requirement.
Thus, queue functions could be simplified if queue locks were not used at all
(and have a queue function do everything inside the same critical section).
- When configNUM_CORES == 1, the current queue implementation in IDF FreeRTOS
does not meet the determinism requirements, as critical sections are used
(instead of scheduler suspension) when locking/unlocking the queues.
There, this commit updates multiple queue functions so that
- When configNUM_CORES > 1
- Queue locks are no longer used. All actions are done within the same
critical section.
- Affected queue functions now need 40% less CPU clock cycles when blocking
- When configNUM_CORES = 1
- Queue locks are still used.
- Vanilla behavior of suspending the scheduler is restored when locking
the queue. Thus queue fucntions are now deterministic and have the same
behavior as Vanilla FreeRTOS.
- Affected queue functions now takes 36% more CPU clock cycles when
blocking (due to the scheduler suspension/resumption).
The following changes have been made in this commit:
1. configMINIMAL_STACK_SIZE is now defined as CONFIG_FREERTOS_IDLE_TASK_STACKSIZE.
2. Removed configIDLE_TASK_STACK_SIZE config as it was redundant.
3. Updates the order of allocating the TCB and stack memory to avoid the
stack memory overriding the TCB memory when the stack grows downwards.
4. CONFIG_FREERTOS_IDLE_TASK_STACKSIZE is now incorporated into the
FreeRTOSConfig_smp.h to configure the IDLE0 stack size.
This commit fixes flakey task delay tests when running on IDF FreeRTOS. IN IDF
FreeRTOS, core 1's tick interrupts could be up to (< 1 tick) out of phase from
core 0's tick interrupt, thus the measured delay time on core 1 could last 1
tick longer. This commit makes the test detla 2 ticks for IDF FreeRTOS.
This commit adds a copy of upstream vanilla FreeRTOS uncrustify.cfg files from
the following upstream commit:
89e4823a49
Note: "pp_indent_brace" is commented out as that was enabled after v10.4.3
Also also added a note in the ESP-IDF style guide aobut formatting FreeRTOS
source code using Uncrustify.
This commit refactors the way stream buffers initialize their spinlock.
- "prvInitialiseNewStreamBuffer()" now initializes the stream buffer fields
manually (instead of using memset()) to avoid resetting the spin lock
- Stream buffer creation functions now manually initialize the spinlock after
the other fields are initialized using "prvInitialiseNewStreamBuffer()"
Also added comments to event group spinlock initializtion.
The llvm asm pasrser doesn't support some gnu asm extensions,
like using "&" with macro arguments. So, replace such code with
code which could be compiled by llvm.
An explicit check of the mutex owner during a mutex release operation is
not necessary for FreeRTOS SMP as this is checked by default. Hence, the
corresponding Kconfig option is removed.
This commit fixes/ignores flakey freertos unit tests after migrating them to
the test app:
- Added vTaskDelay() before teardown to prevent memory leaks
- Adjusted the "main" task's priority so that scheudling tasks would work
- pytest now only runs tests that are not ignored
- Reset tests are temporarily ignored. Will be enabled to dedicate reset tests.
- Some flakey tests are fixed by adjusting delays and stack sizes.
This commit adds the sdkconfig files for the FreeRTOS test app. These
configurations were dervied from the various legacy unit test app's
config files that included the FreeRTOS component.
This commit tries to keep a 1 to 1 config parity with the legacy test app.
Meaning, if FreeRTOS test were run on a particular target with a particular
config, that config will be represented in one of the test app's
sdkconfig.ci.XXX files.
However, the following configurations were removed for FreeRTOS tests:
- The "freertos_flash" option was removed due to redudancy (already tested in
freertos_options)
Some tests were placed in the incorrect test groups (i.e., kernel, port,
performance etc). This commit fixes those placements.
The following redundant tests were also removed:
- "test_panic.c" as behavior is already covered in esp_system tests
This commit fixes a bug where if an unpinned task is interrupted by a level 1
ISR that users the FPU, the FPU usage will cause the interrupted task to
become pinned to the current core.
Note: This bug was already fixed in SMP FreeRTOS in commit
d69361779e. This commit simply backports the
fix to IDF FreeRTOS.
This commit refactors the existing FPU unit tests as follows
- Rename them from coproc to FPU
- Reorganize test placement
- Make existing tests work on both IDF and SMP FreeRTOS
- Update test documentation
- Remove old "test_float_in_isr.c"
This commit refactors the pxPortInitialiseStack() function of the riscv
FreeRTOS ports (both IDF and SMP FreeRTOS).
- Each stack area is now separated into their own functions
- Each function will individually
- Push the stack pointer to allocate the stack area
- Initiaze the allocated stack area
- Each stack area's size and usage is now clearly documented in code
This commit refactors the pxPortInitialiseStack() function of the xtensa
FreeRTOS ports (both IDF and SMP FreeRTOS).
- Each stack area is now separated into their own functions
- Each function will individually
- Push the stack pointer to allocate the stack area
- Initiaze the allocated stack area
- Each stack area's size and usage is now clearly documented in code
* Added port layer from the FreeRTOS POSIX port, added
additional port code for ESP-IDF.
* Created another hello world example using that POSIX
port in tools/test_apps.
* Removed old linux app
This commit adds a priority scheduling unit test to test that the scheduler
always schedules the highest priority ready state task. Single core and SMP
variants of the test are both added.
This commit adds a README.md containing guidelines on how to refactor the
FreeRTOS unit tests for upstreaming. A portTestMacro.h header was also added
which contains port implementation specific macros used by the test cases.
This commit places some functions in port.c and port_common.c into flash by
default. These functions are mostly called once during startup, thus shouldn't
affect applications much when placed into flash instead of the default IRAM.
This commit synchronizes multiple functions in tasks.c with upstream v10.4.3
that contain minor differences.
The following functions have had their parameter names or code formatting
updated:
- xTaskCreateStaticPinnedToCore()
- xTaskCreatePinnedToCore()
- prvInitialiseNewTask()
- prvTaskIsTaskSuspended()
- vTaskStartScheduler()
- xTaskResumeAll()
- xTaskCheckForTimeOut()
- uxTaskResetEventItemValue()
The following functions have had their missing "xAlreadyYielded" restored
- xTaskDelayUntil()
- vTaskDelay()
The following functions have had their critical section/interrupt disdable
usage update
- vTaskSuspendAll()
- xTaskGetTickCountFromISR()
- xTaskGetApplicationTaskTagFromISR()
This commit synchronizes multiple functions that contain major differences with
upstream v10.4.3. Multi-core modifications are then reapplied to the function.
Vanilla code uses "pxTCB == pxCurrentTCB" to check whether a task is currently
running. This commit adds the following macros instead.
- taskIS_CURRENTLY_RUNNING()
- taskIS_CURRENTLY_RUNNING_ON_CORE()
The following functions have been updated to use those macros instead.
- eTaskGetState()
- vTaskPrioritySet()
- vTaskResume()
The following functions have been synchronized with upstream v10.4.3.
Multi-core modifications are then reapplied.
- vTaskSuspend()
- vTaskDelete()
- prvGetExpectedIdleTime()
This commit synchronizes multiple functions in queue.c with upstream v10.4.3.
Multi-core modifications are then reapplied to these functions. The following
functions were modified:
prvNotifyQueueSetContainer()
xQueueGenericCreateStatic()
xQueueGenericCreate()
xQueueGetMutexHolder()
xQueueCreateCountingSemaphoreStatic()
xQueueCreateCountingSemaphore()
xQueueGenericSend()
xQueueGenericSendFromISR()
xQueueReceiveFromISR()
uxQueueMessagesWaiting()
prvUnlockQueue()
prvIsQueueFull()
xQueueAddToSet()
xQueueRemoveFromSet()
prvNotifyQueueSetContainer()
Note: The SEGGER_SYSVIEW traceQUEUE_SEND() macro was updated as the
xCopyPosition argument is no longer available in scenarios where the
macro is called.
This commit fixes the function declaration naming from esprv_intc_set_threshold()
to esprv_intc_int_set_threshold(), thus allowing the underlying ROM funciton to be
exposed via the header.
This commit removes the riscv_interrupts.h header is it has become redundant. The previously
exposed API has been handled as follows:
- "riscv_interrupt_enable()" and "riscv_interrupt_disable()" have been removed. These functions
were declarations only and never had any implementation.
- "riscv_global_interrupts_enable()" and "riscv_global_interrupts_disable()" renamed to
"rv_utils_intr_global_enable()" and "rv_utils_intr_global_disable()" respectively and now
placed in rv_utils.h
ESP32-C2 has a single group timer, thus it will use it for the interrupt watchdog,
which is more critical than the task watchdog. The latter is implement in
software thanks to the `esp_timer`component.
This commit synchronizes multiple functions in tasks.c with upstream v10.4.3
that contain minor differences.
The following functions have had their parameter names or code formatting
updated:
- xTaskCreateStaticPinnedToCore()
- xTaskCreatePinnedToCore()
- prvInitialiseNewTask()
- prvTaskIsTaskSuspended()
- vTaskStartScheduler()
- xTaskResumeAll()
- xTaskCheckForTimeOut()
- uxTaskResetEventItemValue()
The following functions have had their missing "xAlreadyYielded" restored
- xTaskDelayUntil()
- vTaskDelay()
The following functions have had their critical section/interrupt disdable
usage update
- vTaskSuspendAll()
- xTaskGetTickCountFromISR()
- xTaskGetApplicationTaskTagFromISR()
This commit synchronizes multiple functions that contain major differences with
upstream v10.4.3. Multi-core modifications are then reapplied to the function.
Vanilla code uses "pxTCB == pxCurrentTCB" to check whether a task is currently
running. This commit adds the following macros instead.
- taskIS_CURRENTLY_RUNNING()
- taskIS_CURRENTLY_RUNNING_ON_CORE()
The following functions have been updated to use those macros instead.
- eTaskGetState()
- vTaskPrioritySet()
- vTaskResume()
The following functions have been synchronized with upstream v10.4.3.
Multi-core modifications are then reapplied.
- vTaskSuspend()
- vTaskDelete()
- prvGetExpectedIdleTime()
This commit synchronizes multiple functions in queue.c with upstream v10.4.3.
Multi-core modifications are then reapplied to these functions. The following
functions were modified:
prvNotifyQueueSetContainer()
xQueueGenericCreateStatic()
xQueueGenericCreate()
xQueueGetMutexHolder()
xQueueCreateCountingSemaphoreStatic()
xQueueCreateCountingSemaphore()
xQueueGenericSend()
xQueueGenericSendFromISR()
xQueueReceiveFromISR()
uxQueueMessagesWaiting()
prvUnlockQueue()
prvIsQueueFull()
xQueueAddToSet()
xQueueRemoveFromSet()
prvNotifyQueueSetContainer()
Note: The SEGGER_SYSVIEW traceQUEUE_SEND() macro was updated as the
xCopyPosition argument is no longer available in scenarios where the
macro is called.
This commit synchronizes the following xTaskRemoveFrom...EventList() with
upstream v10.4.3. Multi-core modifications are then reapplied to the
functions.
The functions updated are:
- xTaskRemoveFromEventList()
- vTaskRemoveFromUnorderedEventList()
The following multi-core macros have been removed as they are no longer
required.
- tskCAN_RUN_HERE()
- taskYIELD_OTHER_CORE()
This commit synchronizes the following vTaskPlaceOnEventList...() with
upstream v10.4.3.
The functions updated are:
- vTaskPlaceOnEventList()
- vTaskPlaceOnUnorderedEventList()
- vTaskPlaceOnEventListRestricted()
The traceTASK_DELAY_UNTIL() macro has also been updated.
This commit reverts the previous "taskENTER_CRTIICAL();" so that the argument
is now provided for better code readability. The names of the spinlocks have
also been updated.
This commit updates various FreeRTOS functions to call the newly added
prvCheckForYield() and prvCheckForYieldUsingPriority() when checking for
yielding. This allows the source code to match upstream more closely.
When a FreeRTOS function unblocks a task, that function will check whether
the unblocked task requires a yield to be called. This is currently done by
having each function individually check if the unblocked task has a higher
priority than the both cores, and yielding the appropriate core.
This commit adds the macros list below to abstract away the yielding checking
procedure. This will allow the code to match upstream more closely.
- prvCheckForYield()
- prvCheckForYieldUsingPriority()
The event group unit tests would previously use a single call bit (the
"BIT_CALL" macro) to unblock all the test tasks. However, if one or more tasks
were delayed in calling xEventGroupWaitBits(), the other tasks would clear the
test bits, leading to the test deadlocking.
This commit updates the bits used so that each task gets their own CALL and
RESPONSE bits.
For RISC-V and Xtensa targets, in case a panic needs to happen when
Task WDT is triggered (ESP_TASK_WDT_PANIC), the interruptee's stack
is now used for printing the backtrace.
Abort after Task Watchdog is triggered can happen on APP CPU (second core).
Closes https://github.com/espressif/esp-idf/issues/7207
The description of how the xTaskGenericNotifyWait parameter is handled in the
xTaskGenericNotifyWait() function was inaccurate.
In this commit, the description was updated to match the implementation of xTaskGenericNotifyWait().
This commit marks all functions in interrupt_controller_hal.h, cpu_ll.h and cpu_hal.h as deprecated.
Users should use functions from esp_cpu.h instead.
This function removes the following legacy atomic CAS functions:
From compare_set.h (file removed):
- compare_and_set_native()
- compare_and_set_extram()
From portmacro.h
- uxPortCompareSet()
- uxPortCompareSetExtram()
Users should call esp_cpu_compare_and_set() instead as this function hides the details
of atomic CAS on internal and external RAM addresses.
Due to the removal of compare_set.h, some missing header includes are also fixed in this commit.
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
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.
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()
This commit fixes the following:
- Fixes a bug wherein the timer status is active for oneshot timers that
expire before they are started.
- Callback calls for periodic timers where made before the timers were
auto-reloaded.
- Timer expiry trace was being set after the timer callback is called.
Closes https://github.com/espressif/esp-idf/issues/8014
