Summary:
- The CONFIG_SMP_IDLETHREAD_STACKSIZE was introduced to optimize
the idle stack size for other than CPU0
- However, there are no big differences between the idle stacks.
- This commit removes the config to simplify the kernel code
Impact:
- All SMP configurations
Testing:
- Tested with ostest with the following configs
- spresense:smp, spresense:rndis_smp
- esp32-devkitc:smp (QEMU), maix-bit:smp (QEMU)
- sabre-6quad:smp (QEMU), sabre-6quad:netnsh_smp (QEMU)
- raspberrypi-pico:smp, sim:smp (x86_64)
Signed-off-by: Masayuki Ishikawa <asayuki.Ishikawa@jp.sony.com>
Summary:
- This is just a workaround to avoid a crash in signest_test
- The commit should be reverted once we find the root cause of the issue
Impact:
- None
Testing:
- Tested with ostest
Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
arch: Allocate the space from the beginning in up_stack_frame
and modify the affected portion:
1.Correct the stack dump and check
2.Allocate tls_info_s by up_stack_frame too
3.Move the stack fork allocation from arch to sched
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
This adds initializing for the following sensor types:
- HYT271 humidity and temperature sensor
- DS18B20 temperature sensor
Signed-off-by: Marco Krahl <ocram.lhark@gmail.com>
All supported arch uses a push-down stack:
The stack grows toward lower addresses in memory. The stack pointer
register points to the lowest, valid working address (the "top" of
the stack). Items on the stack are referenced as positive(include zero)
word offsets from sp.
Which means that for stack in the [begin, begin + size):
1.The initial SP point to begin + size
2.push equals sub and then store
3.pop equals load and then add
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Janne Rosberg has submitted the ICLA and we can migrate the licenses
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Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
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Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
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Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
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Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
Several licenses were missed in the initial work
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Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
Added a simple defconfig to support the userled driver and its application
for testing in the nsh.
Signed-off-by: Gustavo L F Walbon <gwalbon@linux.ibm.com>
Since 7a046358d9 the top-level COPYING
file has been deleted and replaced by DISCLAIMER, LICENSE, and NOTICE
files. However, some references to the old COPYING file remained in
Kconfig help text and documentation.
Documentation/contributing/coding_style.rst:
Documentation/introduction/about.rst:
boards/arm/lpc17xx_40xx/olimex-lpc1766stk/README.txt:
boards/arm/sam34/arduino-due/README.txt:
boards/arm/sam34/sam4l-xplained/README.txt:
boards/arm/sama5/giant-board/README.md:
boards/arm/sama5/sama5d2-xult/README.txt:
boards/arm/sama5/sama5d4-ek/README.txt:
boards/arm/samd2l2/samd20-xplained/README.txt:
boards/arm/samd2l2/samd21-xplained/README.txt:
boards/arm/samd2l2/saml21-xplained/README.txt:
boards/arm/stm32/hymini-stm32v/README.txt:
boards/arm/stm32/stm3210e-eval/README.txt:
fs/fat/Kconfig:
libs/libc/string/Kconfig:
* Updates stale references to the old top-level COPYING file to
either LICENSE or NOTICE (or both), as appropriate in each
instance.
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Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
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Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
lpc17_40_userleds.c: Adds the support of Userleds driver which
provides a device to manipulate the 4 leds of the board through the
/dev/userleds.
lpc17_40_leds.c: Removes not used definitions, eg. MBED_LED3_ON.
Board LED Status support(CONFIG_ARCH_LED=y) and Device Drivers/Led
Support(CONFIG_ARCH_USERLED=y) can not be enable together.
Signed-off-by: Gustavo L F Walbon <gwalbon@linux.ibm.com>
Normally, statically allocated data goes in .bss, followed by the
initial stack, followed by HEAP. However, any data that is statically
allocated in SRAM4 with __attribute__ ((section (".sram4"))) will
clobber, and be clobbered by, the HEAP.
On STM32H7, BDMA can only access SRAM4. Therefore any BDMA buffers (or
any other data) placed in SRAM4 will expose this problem. In one case,
this manifested as a failure of NSH to start, because the SPI6 BDMA
buffers clobbered the /dev/console inode structs, which the OS
allocated earlier.
This PR ensures that only the rest of SRAM4, after any static data, is
added to the heap. This PR also allows SRAM4 to be completely excluded
from the heap by a new Kconfig, CONFIG_STM32H7_SRAM4EXCLUDE, similar
to what CONFIG_STM32H7_DTCMEXCLUDE does for the DTCM region.
Change required in linker scripts:
Every STM32H7 linker script must replace this:
.sram4 :
{
} > sram4
with this:
.sram4_reserve (NOLOAD) :
{
*(.sram4)
. = ALIGN(4);
_sram4_heap_start = ABSOLUTE(.);
} > sram4
or link will fail with: undefined reference to '_sram4_heap_start'.
The Release Notes should document this for users with out-of-tree
boards.
arch/arm/src/stm32h7/Kconfig:
* Add config STM32H7_SRAM4EXCLUDE to allow excluding all of SRAM4
from the HEAP.
arch/arm/src/stm32h7/stm32_allocateheap.c:
* Only when including SRAM4 in the heap, define HAVE_SRAM4,
SRAM4_START, SRAM4_END, and SRAM4_HEAP_START.
* Add "Private Data" section.
* Add extern for_sram4_heap_start, which must be defined in the
board's linker script.
* arm_addregion(): Only add SRAM4 to the heap when configured to
do so, i.e., unless CONFIG_STM32H7_SRAM4EXCLUDE is defined, and
only add the portion of SRAM4 that is past any static data.
boards/arm/stm32h7/nucleo-h743zi/scripts/flash.ld:
boards/arm/stm32h7/nucleo-h743zi/scripts/kernel.space.ld:
boards/arm/stm32h7/nucleo-h743zi2/scripts/flash.ld:
boards/arm/stm32h7/stm32h747i-disco/scripts/flash.ld:
boards/arm/stm32h7/stm32h747i-disco/scripts/kernel.space.ld:
* Update all in-tree STM32H7 board linker scripts as described in
"Change required in linker scripts" above.
Testing:
* Successfully built all of the following configurations:
nucleo-h743zi2:jumbo
nucleo-h743zi2:nsh
nucleo-h743zi:nxlines_oled
nucleo-h743zi:elf
nucleo-h743zi:otg_fs_host
nucleo-h743zi:nsh
nucleo-h743zi:netnsh
nucleo-h743zi:pwm
stm32h747i-disco:nsh
* Tested with custom board.
* nxstyle.
References:
[1] See the dev@nuttx.a.o mailing list discussion started 2021/03/25:
"How to ensure HEAP will not overlap static DMA buffer?"
https://lists.apache.org/thread.html/recf2bb9043f8c9f53c10917e2adb2ec64fe35dc5e6f9a695a7ac6ecc%40%3Cdev.nuttx.apache.org%3E
[2] See arm_addregion() in arch/arm/src/stm32h7/stm32_allocateheap.c
Thanks to Gregory Nutt and David Sidrane for suggestions and reviews.
