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https://github.com/espressif/esp-idf.git
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26c19928a9
The following updates have been made in this commit: - The commit places FreeRTOS code in flash memory by default. - CONFIG_FREERTOS_PLACE_FUNCTIONS_INTO_FLASH has been removed. - CONFIG_FREERTOS_IN_IRAM is unhidden and can be used to restore the previous memory placement. - A test has been added for users to conduct performance impact testing based on memory placement configurations.
152 lines
9.1 KiB
Plaintext
152 lines
9.1 KiB
Plaintext
# ----------------------------------------------------------------------------------------------------------------------
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# Linker fragment file for SMP FreeRTOS (i.e., CONFIG_FREERTOS_SMP=y)
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# Flash function placements are listed per source file, in the order that they appear in the source file.
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#
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# Placement Rules:
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# - Default behavior: All FreeRTOS functions are placed in Flash by default, except for:
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# - FromISR() functions (placed in IRAM by default)
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# - Performance-critical functions, such as critical section APIs and code related to context switching
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# - CONFIG_FREERTOS_IN_IRAM:
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# - This option is presented to users as a performance optimization feature, with the trade-off of reduced
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# internal RAM availability. This option is disabled by default.
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# - CONFIG_FREERTOS_PLACE_ISR_FUNCTIONS_INTO_FLASH
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# - If SPI_FLASH_AUTO_SUSPEND is supported, this option allows placing FromISR() functions in Flash.
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# ----------------------------------------------------------------------------------------------------------------------
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[mapping:freertos_smp]
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archive: libfreertos.a
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entries:
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if FREERTOS_IN_IRAM = y:
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* (noflash_text) # All FreeRTOS functions to IRAM
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else:
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* (default) # All FreeRTOS functions to Flash
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# --------------------------------------------------------------------------------------------------------------
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# event_groups.c
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# --------------------------------------------------------------------------------------------------------------
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if FREERTOS_PLACE_ISR_FUNCTIONS_INTO_FLASH = n:
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event_groups:xEventGroupClearBitsFromISR (noflash_text)
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event_groups:xEventGroupGetBitsFromISR (noflash_text)
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event_groups:xEventGroupSetBitsFromISR (noflash_text)
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# --------------------------------------------------------------------------------------------------------------
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# list.c
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# - List/List Item initialization functions are never called from ISR
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# - vListInsert is never called from an ISR context
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# - Remaining List insertion/removal functions can be called from an ISR context and hence place them in flash
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# only when CONFIG_FREERTOS_PLACE_ISR_FUNCTIONS_INTO_FLASH is enabled
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# --------------------------------------------------------------------------------------------------------------
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if FREERTOS_PLACE_ISR_FUNCTIONS_INTO_FLASH = n:
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list:vListInsertEnd (noflash_text)
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list:uxListRemove (noflash_text)
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# --------------------------------------------------------------------------------------------------------------
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# queue.c
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# --------------------------------------------------------------------------------------------------------------
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if FREERTOS_PLACE_ISR_FUNCTIONS_INTO_FLASH = n:
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queue:xQueueGetMutexHolderFromISR (noflash_text)
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queue:xQueueGenericSendFromISR (noflash_text)
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queue:prvCopyDataToQueue (noflash_text)
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queue:xQueueGiveFromISR (noflash_text)
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queue:xQueueReceiveFromISR (noflash_text)
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queue:prvCopyDataFromQueue (noflash_text)
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queue:xQueuePeekFromISR (noflash_text)
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queue:uxQueueMessagesWaitingFromISR (noflash_text)
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queue:xQueueIsQueueEmptyFromISR (noflash_text)
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queue:xQueueIsQueueFullFromISR (noflash_text)
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queue:xQueueSelectFromSetFromISR (noflash_text)
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# --------------------------------------------------------------------------------------------------------------
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# stream_buffer.c
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# --------------------------------------------------------------------------------------------------------------
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if FREERTOS_PLACE_ISR_FUNCTIONS_INTO_FLASH = n:
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stream_buffer:xStreamBufferSendFromISR (noflash_text)
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stream_buffer:prvWriteMessageToBuffer (noflash_text)
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stream_buffer:xStreamBufferReceiveFromISR (noflash_text)
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stream_buffer:prvReadMessageFromBuffer (noflash_text)
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stream_buffer:xStreamBufferSendCompletedFromISR (noflash_text)
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stream_buffer:xStreamBufferReceiveCompletedFromISR (noflash_text)
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stream_buffer:prvBytesInBuffer (noflash_text)
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# --------------------------------------------------------------------------------------------------------------
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# tasks.c
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# - The following functions are always kept in internal RAM as they are frequently called during context switches
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# or are called with cache disabled
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# - xTaskIncrementTick
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# - prvSelectHighestPriorityTaskSMP
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# - vTaskSwitchContext
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# - xTaskGetSchedulerState
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# - xTaskGetTickCount
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# - Place all functions that are called from an ISR context into Flash if
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# CONFIG_FREERTOS_PLACE_ISR_FUNCTIONS_INTO_FLASH is enabled
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# --------------------------------------------------------------------------------------------------------------
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tasks:xTaskIncrementTick (noflash_text)
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tasks:prvSelectHighestPriorityTaskSMP (noflash_text)
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tasks:vTaskSwitchContext (noflash_text)
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tasks:xTaskGetSchedulerState (noflash_text)
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tasks:xTaskGetTickCount (noflash_text)
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if FREERTOS_PLACE_ISR_FUNCTIONS_INTO_FLASH = n:
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tasks:uxTaskPriorityGetFromISR (noflash_text)
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tasks:prvTaskIsTaskSuspended (noflash_text)
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tasks:xTaskResumeFromISR (noflash_text)
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tasks:xTaskGetTickCountFromISR (noflash_text)
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tasks:xTaskGetApplicationTaskTagFromISR (noflash_text)
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tasks:xTaskRemoveFromEventList (noflash_text)
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tasks:prvResetNextTaskUnblockTime (noflash_text)
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tasks:xTaskGenericNotifyFromISR (noflash_text)
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tasks:vTaskGenericNotifyGiveFromISR (noflash_text)
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# --------------------------------------------------------------------------------------------------------------
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# timers.c
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# - xTimerGenericCommand() is used for ISR calls as well. Thus leave it (and its dependents) in internal RAM
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# unless CONFIG_FREERTOS_PLACE_ISR_FUNCTIONS_INTO_FLASH is enabled
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# --------------------------------------------------------------------------------------------------------------
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if FREERTOS_PLACE_ISR_FUNCTIONS_INTO_FLASH = n:
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timers:xTimerGenericCommand (noflash_text)
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timers:xTimerPendFunctionCallFromISR (noflash_text)
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# --------------------------------------------------------------------------------------------------------------
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# portable/xtensa/port.c
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# - Critical sections and interrupt context checking functions are always placed in internal RAM for better
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# performance and correctness.
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# - vPortSetStackWatchpoint is placed in IRAM as it is called from vTaskSwitchContext.
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# - The following functions directly call portasm functions which are always in IRAM
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# - xPortStartScheduler
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# --------------------------------------------------------------------------------------------------------------
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if IDF_TARGET_ARCH_XTENSA = y:
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port:xPortStartScheduler (noflash_text)
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port:vPortEnterCritical (noflash_text)
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port:vPortExitCritical (noflash_text)
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port:xPortEnterCriticalTimeout (noflash_text)
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port:vPortExitCriticalIDF (noflash_text)
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port:vPortSetStackWatchpoint (noflash_text)
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port:xPortCheckIfInISR (noflash_text)
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port:vPortAssertIfInISR (noflash_text)
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# --------------------------------------------------------------------------------------------------------------
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# portable/riscv/port.c
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# - Critical sections, interrupt masking, and yielding functions are always placed in internal RAM for better
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# performance and correctness.
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# - vPortSetStackWatchpoint is placed in IRAM as it is called from vTaskSwitchContext.
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# --------------------------------------------------------------------------------------------------------------
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if IDF_TARGET_ARCH_RISCV = y:
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port:vPortEnterCritical (noflash_text)
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port:vPortExitCritical (noflash_text)
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port:ulPortSetInterruptMask (noflash_text)
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port:vPortClearInterruptMask (noflash_text)
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port:vPortYield (noflash_text)
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port:vPortYieldFromISR (noflash_text)
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port:vPortSetStackWatchpoint (noflash_text)
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port:xPortSetInterruptMaskFromISR (noflash_text)
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port:vPortClearInterruptMaskFromISR (noflash_text)
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port:vPortCoprocUsedInISR (noflash_text)
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port:xPortCheckIfInISR (noflash_text)
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port:vPortAssertIfInISR (noflash_text)
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# --------------------------------------------------------------------------------------------------------------
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# portasm.S
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# - Place the entire portasm object file in IRAM. It contains critical context switching and interrupt entry/exit
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# code that must always be in IRAM for better performance.
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# --------------------------------------------------------------------------------------------------------------
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portasm (noflash_text)
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