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esp_ringbuf: Added functions to linker.lf file which can be placed in Flash

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This commit adds symbols from the ringbuf.c file which can be placed in
Flash in order to free up IRAM space.
This commit is contained in:
Sudeep Mohanty
2023-04-01 13:18:57 +02:00
parent ef4b1b7704
commit dc53189e46
3 changed files with 15 additions and 3 deletions
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7
components/esp_ringbuf/Kconfig
View File

@ -11,14 +11,15 @@ menu "ESP Ringbuf"
config RINGBUF_PLACE_ISR_FUNCTIONS_INTO_FLASH config RINGBUF_PLACE_ISR_FUNCTIONS_INTO_FLASH
bool "Place ISR ringbuf functions into flash" bool "Place ISR ringbuf functions into flash"
depends on RINGBUF_PLACE_FUNCTIONS_INTO_FLASH
default n default n
help help
Place non-ISR ringbuf functions (like xRingbufferSendFromISR/xRingbufferReceiveFromISR) into flash. Place ISR ringbuf functions (like xRingbufferSendFromISR/xRingbufferReceiveFromISR) into flash.
This frees up IRAM, but the functions can no longer be called when the cache is disabled This frees up IRAM, but the functions can no longer be called when the cache is disabled
or from an IRAM interrupt context. or from an IRAM interrupt context.
This option is not compatible with ESP-IDF drivers which is configured to run the ISR from an IRAM context, This option is not compatible with ESP-IDF drivers which are configured to
e.g. CONFIG_UART_ISR_IN_IRAM. run the ISR from an IRAM context, e.g. CONFIG_UART_ISR_IN_IRAM.
endmenu endmenu

9
components/esp_ringbuf/linker.lf
View File

@ -8,6 +8,7 @@ entries:
ringbuf: prvGetCurMaxSizeByteBuf (default) ringbuf: prvGetCurMaxSizeByteBuf (default)
ringbuf: prvInitializeNewRingbuffer (default) ringbuf: prvInitializeNewRingbuffer (default)
ringbuf: prvReceiveGeneric (default) ringbuf: prvReceiveGeneric (default)
ringbuf: prvGetFreeSize (default)
ringbuf: vRingbufferDelete (default) ringbuf: vRingbufferDelete (default)
ringbuf: vRingbufferGetInfo (default) ringbuf: vRingbufferGetInfo (default)
ringbuf: vRingbufferReturnItem (default) ringbuf: vRingbufferReturnItem (default)
@ -15,11 +16,17 @@ entries:
ringbuf: xRingbufferCanRead (default) ringbuf: xRingbufferCanRead (default)
ringbuf: xRingbufferCreate (default) ringbuf: xRingbufferCreate (default)
ringbuf: xRingbufferCreateStatic (default) ringbuf: xRingbufferCreateStatic (default)
ringbuf: xRingbufferCreateNoSplit (default)
ringbuf: xRingbufferReceive (default) ringbuf: xRingbufferReceive (default)
ringbuf: xRingbufferReceiveSplit (default) ringbuf: xRingbufferReceiveSplit (default)
ringbuf: xRingbufferReceiveUpTo (default) ringbuf: xRingbufferReceiveUpTo (default)
ringbuf: xRingbufferRemoveFromQueueSetRead (default) ringbuf: xRingbufferRemoveFromQueueSetRead (default)
ringbuf: xRingbufferSend (default) ringbuf: xRingbufferSend (default)
ringbuf: xRingbufferSendAcquire (default)
ringbuf: xRingbufferSendComplete (default)
ringbuf: xRingbufferPrintInfo (default)
ringbuf: xRingbufferGetMaxItemSize (default)
ringbuf: xRingbufferGetCurFreeSize (default)
if RINGBUF_PLACE_ISR_FUNCTIONS_INTO_FLASH = y: if RINGBUF_PLACE_ISR_FUNCTIONS_INTO_FLASH = y:
ringbuf: prvReturnItemByteBuf (default) ringbuf: prvReturnItemByteBuf (default)
@ -32,7 +39,9 @@ entries:
ringbuf: prvAcquireItemNoSplit (default) ringbuf: prvAcquireItemNoSplit (default)
ringbuf: prvCheckItemFitsByteBuffer (default) ringbuf: prvCheckItemFitsByteBuffer (default)
ringbuf: prvCheckItemFitsDefault (default) ringbuf: prvCheckItemFitsDefault (default)
ringbuf: prvCheckItemAvail (default)
ringbuf: prvSendItemDoneNoSplit (default) ringbuf: prvSendItemDoneNoSplit (default)
ringbuf: prvReceiveGenericFromISR (default)
ringbuf: xRingbufferSendFromISR (default) ringbuf: xRingbufferSendFromISR (default)
ringbuf: xRingbufferReceiveFromISR (default) ringbuf: xRingbufferReceiveFromISR (default)
ringbuf: xRingbufferReceiveSplitFromISR (default) ringbuf: xRingbufferReceiveSplitFromISR (default)

2
components/esp_ringbuf/test/test_ringbuf.c
View File

@ -1019,6 +1019,7 @@ TEST_CASE("Test static ring buffer SMP", "[esp_ringbuf]")
} }
#endif #endif
#if !CONFIG_RINGBUF_PLACE_FUNCTIONS_INTO_FLASH && !CONFIG_RINGBUF_PLACE_ISR_FUNCTIONS_INTO_FLASH
/* -------------------------- Test ring buffer IRAM ------------------------- */ /* -------------------------- Test ring buffer IRAM ------------------------- */
static IRAM_ATTR __attribute__((noinline)) bool iram_ringbuf_test(void) static IRAM_ATTR __attribute__((noinline)) bool iram_ringbuf_test(void)
@ -1044,3 +1045,4 @@ TEST_CASE("Test ringbuffer functions work with flash cache disabled", "[esp_ring
{ {
TEST_ASSERT( iram_ringbuf_test() ); TEST_ASSERT( iram_ringbuf_test() );
} }
#endif /* !CONFIG_RINGBUF_PLACE_FUNCTIONS_INTO_FLASH && !CONFIG_RINGBUF_PLACE_ISR_FUNCTIONS_INTO_FLASH */