add irq stack information
add cpu loading

Signed-off-by: chao.an <anchao@xiaomi.com>

This pull request improves the dependencies for Makefile.unix::context rule.
* `include/math.h`, `include/float.h`, `include/stdarg.h`, `include/setjmp.h` are only added to `context`'s dependency if the Kconfig value is set. This prevents `context` from trying to make `include/math.h` only to find out there's no command to create the file.
* Instead of executing $(CONTEXTDIRS) in a for loop in the `context` rule, $(CONTEXTDIRS) are added as a dependency to `context` and a rule is created to create the targets. Real files are used, to prevent needlessly rebuilding the same `context` over and over and over again.
* Instead of making the directory `staging`, add it as an order-only dependency for `context`. this ensures the directory is only created if it doesn't exist.

Tested by running:
```
(cd tools && ./configure.sh -a ../incubator-nuttx-apps stm32f3discovery:nsh)
make context
```

First time running context:
```
➜  incubator-nuttx git:(improve-make-context) time make context
make[1]: Entering directory '/home/user/code/fitbit/incubator-nuttx/tools'
make[1]: Leaving directory '/home/user/code/fitbit/incubator-nuttx/tools'
make[1]: Entering directory '/home/user/code/fitbit/incubator-nuttx'
make[2]: Entering directory '/home/user/code/fitbit/incubator-nuttx/boards'
make[2]: Leaving directory '/home/user/code/fitbit/incubator-nuttx/boards'
make[2]: Entering directory '/home/user/code/fitbit/incubator-nuttx-apps'
make[3]: Entering directory '/home/user/code/fitbit/incubator-nuttx-apps/platform'
make[3]: Leaving directory '/home/user/code/fitbit/incubator-nuttx-apps/platform'
make[3]: Entering directory '/home/user/code/fitbit/incubator-nuttx-apps/builtin'
make[3]: Leaving directory '/home/user/code/fitbit/incubator-nuttx-apps/builtin'
make[2]: Leaving directory '/home/user/code/fitbit/incubator-nuttx-apps'
make[2]: Entering directory '/home/user/code/fitbit/incubator-nuttx/graphics'
make[3]: Entering directory '/home/user/code/fitbit/incubator-nuttx/graphics/nxglib'
make[3]: Leaving directory '/home/user/code/fitbit/incubator-nuttx/graphics/nxglib'
make[3]: Entering directory '/home/user/code/fitbit/incubator-nuttx/graphics/nxglib'
make[3]: Leaving directory '/home/user/code/fitbit/incubator-nuttx/graphics/nxglib'
make[3]: Entering directory '/home/user/code/fitbit/incubator-nuttx/graphics/nxglib'
make[3]: Leaving directory '/home/user/code/fitbit/incubator-nuttx/graphics/nxglib'
make[2]: Leaving directory '/home/user/code/fitbit/incubator-nuttx/graphics'
make[1]: Leaving directory '/home/user/code/fitbit/incubator-nuttx'
Create .version
make[1]: Entering directory '/home/user/code/fitbit/incubator-nuttx/tools'
make[1]: Leaving directory '/home/user/code/fitbit/incubator-nuttx/tools'
Create version.h
LN: include/arch to arch/arm/include
LN: include/arch/board to /home/user/code/fitbit/incubator-nuttx/boards/arm/stm32/stm32f3discovery/include
LN: include/arch/chip to arch/arm/include/stm32
LN: arch/arm/src/board to /home/user/code/fitbit/incubator-nuttx/boards/arm/stm32/stm32f3discovery/../common
LN: arch/arm/src/board/board to /home/user/code/fitbit/incubator-nuttx/boards/arm/stm32/stm32f3discovery/src
LN: arch/arm/src/chip to arch/arm/src/stm32
LN: /home/user/code/fitbit/incubator-nuttx/drivers/platform to /home/user/code/fitbit/incubator-nuttx/drivers/dummy
make[1]: Entering directory '/home/user/code/fitbit/incubator-nuttx/boards'
make[1]: Leaving directory '/home/user/code/fitbit/incubator-nuttx/boards'
make[1]: Entering directory '/home/user/code/fitbit/incubator-nuttx-apps'
make[2]: Entering directory '/home/user/code/fitbit/incubator-nuttx-apps/platform'
LN: platform/board to /home/user/code/fitbit/incubator-nuttx-apps/platform/dummy
make[2]: Leaving directory '/home/user/code/fitbit/incubator-nuttx-apps/platform'
make[1]: Leaving directory '/home/user/code/fitbit/incubator-nuttx-apps'
make context  0.95s user 0.45s system 109% cpu 1.281 total
```
second time running context:
```
➜  incubator-nuttx git:(improve-make-context) time make context
Create .version
Create version.h
LN: include/arch/board to /home/user/code/fitbit/incubator-nuttx/boards/arm/stm32/stm32f3discovery/include
make[1]: Entering directory '/home/user/code/fitbit/incubator-nuttx/boards'
make[1]: Nothing to be done for 'dirlinks'.
make[1]: Leaving directory '/home/user/code/fitbit/incubator-nuttx/boards'
make[1]: Entering directory '/home/user/code/fitbit/incubator-nuttx-apps'
make[2]: Entering directory '/home/user/code/fitbit/incubator-nuttx-apps/platform'
LN: platform/board to /home/user/code/fitbit/incubator-nuttx-apps/platform/dummy
make[2]: Leaving directory '/home/user/code/fitbit/incubator-nuttx-apps/platform'
make[1]: Leaving directory '/home/user/code/fitbit/incubator-nuttx-apps'
make context  0.30s user 0.20s system 121% cpu 0.414 total
```

  For FAT the same buffer is used for read and writes, there
  is a possibility a cache line is dirty. But the fs is
  not dirty and will not write the sector to disk. This can
  be seen  PX4/NuttX#175

  When the system is busy that cache line can be evicted after the
  RX DMA has completed and overwrite the data in memory. The solution
  is to invalidate before the DMA to prevent an evection causing an
  overwite, and after the DMA it to insure coherency.

- "op_mode" instead of "mode" (compilation error)
- CONFIG_ISL29023_I2C_FREQUENCY instead of CONFIG_LM75_I2C_FREQUENCY
(probably a leftover)
- Fix a couple of format warnings: now using PRIu32
- Also minor comment changes

Assign ways to L2 zerodevice. L2 zero device is used for
the scratchpad functionality. The area may be used for the
harts communicating to each other.

Signed-off-by: Eero Nurkkala <eero.nurkkala@offcode.fi>

OpenSBI may be compiled as an external library. OpenSBI commit d249d65
(Dec. 11, 2021) needs to be reverted as it causes memcpy / memcmp to
end up in the wrong section. That issue has yet no known workaround.

OpenSBI may be lauched from the hart0 (e51). It will start the U-Boot
and eventually the Linux kernel on harts 1-4.

OpenSBI, once initialized properly, will trap and handle illegal
instructions (for example, CSR time) and unaligned address accesses
among other things.

Due to size size limitations for the mpfs eNVM area where the NuttX
is located, we actually set up the OpenSBI on its own section which
is in the bottom of the DDR memory. Special care must be taken so that
the kernel doesn't override the OpenSBI. For example, the Linux device
tree may reserve some space from the beginning:

  opensbi_reserved: opensbi@80000000 {
      reg = <0x80000000 0x200000>;
      label = "opensbi-reserved";
  };

The resulting nuttx.bin file is very large, but objcopy is used to
create the final binary images for the regions (eNVM and DDR) using
the nuttx elf file.

Co-authored-by: Petro Karashchenko <petro.karashchenko@gmail.com>
Signed-off-by: Eero Nurkkala <eero.nurkkala@offcode.fi>

Signed-off-by: ligd <liguiding1@xiaomi.com>

The source directory contents of the OpenSBI directory lib/sbi may be
listed with a one-line wildcard. This makes the Make.defs file look
simpler. The rest of the files need to be picked one at a time.

Co-authored-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
Signed-off-by: Eero Nurkkala <eero.nurkkala@offcode.fi>

Signed-off-by: chao.an <anchao@xiaomi.com>

Update the cache settings for the Aries m100pfsevp board. This
assigns scratchpad ways for this board as well, as seen in the
commit 491ae6c.

Signed-off-by: Eero Nurkkala <eero.nurkkala@offcode.fi>

Co-authored-by: Gustavo Henrique Nihei <gustavo.nihei@espressif.com>
Co-authored-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>

Signed-off-by: ligd <liguiding1@xiaomi.com>

Signed-off-by: ligd <liguiding1@xiaomi.com>

Signed-off-by: ligd <liguiding1@xiaomi.com>

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>

Signed-off-by: zhuyanlin <zhuyanlin1@xiaomi.com>

…for format

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>

…urred if NET_TCP_WINDOW_SCALE option was enabled.

If the remote TCP receiver advertised TCP window size greater than 64 KB
and TCP ACK packets returned to the NuttX TCP sender with a significant delay,
tx_unacked variable overflowed and further TCP send stalled forever
(until TCP re-connection).

rwbuffer.c: In function 'rwb_initialize':
rwbuffer.c:842:16: warning: format '%d' expects argument of type 'int', but argument 3 has type 'uint32_t' {aka 'long unsigned int'} [-Wformat=]
  842 |           ferr("Write buffer kmm_malloc(%d) failed\n", allocsize);
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  ~~~~~~~~~
      |                                                        |
      |                                                        uint32_t {aka long unsigned int}
rwbuffer.c:842:42: note: format string is defined here
  842 |           ferr("Write buffer kmm_malloc(%d) failed\n", allocsize);
      |                                         ~^
      |                                          |
      |                                          int
      |                                         %ld
In file included from rwbuffer.c:36:
rwbuffer.c:846:13: warning: format '%d' expects argument of type 'int', but argument 3 has type 'uint32_t' {aka 'long unsigned int'} [-Wformat=]
  846 |       finfo("Write buffer size: %d bytes\n", allocsize);
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  ~~~~~~~~~
      |                                              |
      |                                              uint32_t {aka long unsigned int}
rwbuffer.c:846:34: note: format string is defined here
  846 |       finfo("Write buffer size: %d bytes\n", allocsize);
      |                                 ~^
      |                                  |
      |                                  int
      |                                 %ld

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>

Wrong unackseq calculation locked conn->tx_unacked at non-zero values
even if all ACKs were received. Thus unbuffered psock_tcp_send() never completed.

Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>

Signed-off-by: chao.an <anchao@xiaomi.com>

Signed-off-by: chao.an <anchao@xiaomi.com>

Signed-off-by: chao.an <anchao@xiaomi.com>

Signed-off-by: zhuyanlin <zhuyanlin1@xiaomi.com>

Signed-off-by: zhuyanlin <zhuyanlin1@xiaomi.com>

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>

like other rtc driver

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>

to support the multiple rtc driver instance

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>

Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>

…stent with each other:

tcp_sendfile() reads data directly from a file and does not use NET_TCP_WRITE_BUFFERS data flow
even if CONFIG_NET_TCP_WRITE_BUFFERS option is enabled.
Despite this, tcp_sendfile relied on NET_TCP_WRITE_BUFFERS specific flow control variables that
were idle during sendfile operation. Thus it was a total inconsistency.

E.g. because of the issue, TCP socket used by sendfile() operation never issued
FIN packet on close() command, and the TCP connection hung up.

As a result of the fix, simultaneously enabled CONFIG_NET_TCP_WRITE_BUFFERS and
CONFIG_NET_SENDFILE options can coexist.

Some SoC like bl602 require the exception entry 8 byte align, it should
be safe for other chips so we can apply it globally.

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>

Signed-off-by: chao.an <anchao@xiaomi.com>

netlink/netlink_sockif.c: In function ‘netlink_sendmsg’:
netlink/netlink_sockif.c:676:10: warning: unused variable ‘len’ [-Wunused-variable]
  676 |   size_t len = msg->msg_iov->iov_len;
      |          ^~~

Signed-off-by: chao.an <anchao@xiaomi.com>

Signed-off-by: chao.an <anchao@xiaomi.com>

Update the risc-v/mpfs documentation to match the current work.

Signed-off-by: Eero Nurkkala <eero.nurkkala@offcode.fi>

includes following parts:
add support of sparc in arch/Kconfig
add support of sparc in boards/Kconfig
add sparc dir in arch, add sparc dir in boards
add support of sparc in libs/libc/machine
modify all the coding style problem about saprc

Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>

based on PR apache#2987

…rect snd_ackcb callback handling:

Both the snd_ackcb and snd_datacb callbacks were created and destroyed right after sending every packet.
Whenever TCP_REXMIT event occurred due to TCP send timeout, TCP_REXMIT was ignored because
snd_ackcb callback had been destroyed by the time.
The issue is fixed as follows:
- both the snd_ackcb and snd_datacb callbacks are combined into one snd_cb callback
  (the same way as in tcp_send_unbuffered.c).
- the snd_cb callback lives until all requested data (via sendfile) is sent,
  including all ACKs and possible retransmissions.

As a positive side effect of the code optimization / fix, sendfile TCP payload throughput is increased.

Signed-off-by: Gustavo Henrique Nihei <gustavo.nihei@espressif.com>

Merge master into downstream