Commit Graph

192 Commits

Author SHA1 Message Date
Ville Juven
d0fbf9883d riscv/lazyfpu: Add option to disable lazy FPU
Adds option to use the old implementation where FPU is stored into
the process stack.
2023-07-31 07:48:53 -07:00
dongjiuzhu1
14446677d3 arch/arm64: default select ARCH_HAVE_SETJMP
Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
2023-07-28 20:57:26 -07:00
Xiang Xiao
f3269a6caa sched: Rename DEBUG_TCBINFO to ARCH_HAVE_TCBINFO
and select if the arch support to define g_tcbinfo variable

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-07-26 09:33:38 +02:00
chao an
ee6e2ce149 arch/perf: add ARCH_HAVE_PERF_EVENTS to support hardware perf events
The implementation of up_perf_*() is in a different static library in nuttx:

Hardware: libarch.a
Software: libdrivers.a (weak function)

Since functions with weak attributes cannot be correctly replaced in multiple static libraries,
this PR will use macros to replace whether the arch supports hardware perf events

Signed-off-by: chao an <anchao@xiaomi.com>
2023-07-21 20:43:30 +08:00
Xiang Xiao
abfe082a6f Kconfig: Simplify the conditional default statement
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-07-16 14:39:20 -03:00
Xiang Xiao
e031a73aef Kconfig: Change some "default y" to "default !DEFAULT_SMALL"
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-07-16 14:39:20 -03:00
guoshichao
c33d1c9c97 sched/task/fork: add fork implementation
1. as we can use fork to implement vfork, so we rename the vfork to
fork, and use the fork method as the base to implement vfork method
2. create the vfork function as a libc function based on fork
function

Signed-off-by: guoshichao <guoshichao@xiaomi.com>
2023-07-12 02:27:37 +08:00
Stuart Ianna
6492f0172e binfmt/elf: Allow the userspace ELF type to be defined by board configuration.
This change allows boards to define an additional kconfig option, which specifies the final link format of application executables.

By selecting `CONFIG_BINFMT_ELF_RELOCATABLE`, and providing an appropriate linker script, applications can be fully linked, removing the need to process relocations.
2023-06-28 15:16:28 +08:00
anjiahao
4ae17a6f7b sched:Automatically find deadlocks when assert
When asserting, automatically analyze whether
there is a deadlock in the thread, and if there
is a deadlock, print out the deadlocked thread.

The principle is to analyze whether there is
a lock ring through the tcb holder.

Signed-off-by: anjiahao <anjiahao@xiaomi.com>
2023-06-22 16:08:03 +08:00
Masayuki Ishikawa
7410f4a6b8 Revert "riscv/lazyfpu: Add option to disable lazy FPU"
This reverts commit 425cc89989.
2023-06-20 06:17:11 +09:00
Ville Juven
425cc89989 riscv/lazyfpu: Add option to disable lazy FPU
Adds option to use the old implementation where FPU is stored into
the process stack.
2023-06-19 19:28:07 +08:00
Ville Juven
0476e30a6d mm/kmm_map: Add support to dynamically map pages into kernel virtual memory
This adds functionality to map pages dynamically into kernel virtual
memory. This allows implementing I/O remap for example, which is a useful
(future) feature.

Now, the first target is to support mapping user pages for the kernel.

Why? There are some userspace structures that might be needed when the
userspace process is not running. Semaphores are one such example. Signals
and the WDT timeout both need access to the user semaphore to work
properly. Even though for this only obtaining the kernel addressable
page pool virtual address is needed, for completeness a procedure is
provided to map several pages.
2023-06-02 10:50:26 +08:00
liaoao
6424b5322f procfs:add xtensa cpuinfo
Signed-off-by: liaoao <liaoao@xiaomi.com>
2023-05-27 03:29:41 +08:00
liaoao
8a5bf87c72 procfs:add risc-v cpuinfo
Signed-off-by: liaoao <liaoao@xiaomi.com>
2023-05-27 03:29:41 +08:00
liaoao
6ea3eb3ce2 procfs:add /proc/cpuinfo
Signed-off-by: liaoao <liaoao@xiaomi.com>
2023-05-27 03:29:41 +08:00
Huang Qi
70395f49b2 arch/sim: Implement text heap
If CONFIG_MM_CUSTOMIZE_MANAGER enabled on sim, malloc/mmap is bypassed to glibc, so the memory allocated without execution permisson.

For this case, CONFIG_ARCH_USE_TEXT_HEAP can be used.

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
2023-04-24 10:29:20 +08:00
hujun5
ab0b3336c4 arch/arm64:Suppot tickless mode
1 Similar to Linux and zephyr, all implementations are in arm64_arch_timer.c

2 Arm64 tickless is turned off by default. If it needs to be turned on, you need to configure the switch CONFIG_SCHED_TICKLESS ON

3 The implementation strategy for tick/tickless is to use the timer inside the CPU and implement the timer driver based on the ARCH_TIMER framework.

4 We implemented tick_* Callback functions to adapt to the driven interface to avoid time format conversion overhead

5 In arm64_tick_cancel func,The remaining time that is not used, so this value can be ignored without reading the corresponding register to obtain the remaining cycles

6 Currently, tick/tickless can takes effect in SMP and non SMP mode, ostest can pass.

Signed-off-by: hujun5 <hujun5@xiaomi.com>
2023-04-22 01:08:04 +08:00
Xiang Xiao
673a4aabf5 arch: Set the default value of ARCH for x86_64
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-03-20 09:16:44 +01:00
ligd
1cc6e4b1fa sim: add uart dma mode & use work instead of loop.
Signed-off-by: ligd <liguiding1@xiaomi.com>
2023-02-10 13:54:42 +08:00
chao an
74ce3b81d3 build/Kconfig: add BINDIR/APPSBINDIR to support out of tree build
First decoupling changes related to CMAKE

BINDIR/APPSBINDIR:
Output path of Kconfig which dynamically generated by NuttX Kernel/Apps
This option is consistent with the TOPDIR/APPSDIR by default, and will
be changed when out-of-tree compilation is supported

Signed-off-by: chao an <anchao@xiaomi.com>
2023-02-09 20:13:04 +08:00
Ville Juven
09e7987121 sched/addrenv: Fix system crash when process group has been deleted
There is currently a big problem in the address environment handling which
is that the address environment is released too soon when the process is
exiting. The current MMU mappings will always be the exiting process's, which means
the system needs them AT LEAST until the next context switch happens. If
the next thread is a kernel thread, the address environment is needed for
longer.

Kernel threads "lend" the address environment of the previous user process.
This is beneficial in two ways:
- The kernel processes do not need an allocated address environment
- When a context switch happens from user -> kernel or kernel -> kernel,
  the TLB does not need to be flushed. This must be done only when
  changing to a different user address environment.

Another issue is when a new process is created; the address environment
of the new process must be temporarily instantiated by up_addrenv_select().
However, the system scheduler does not know that the process has a different
address environment to its own and when / if a context restore happens, the
wrong MMU page directory is restored and the process will either crash or
do something horribly wrong.

The following changes are needed to fix the issues:
- Add mm_curr which is the current address environment of the process
- Add a reference counter to safeguard the address environment
- Whenever an address environment is mapped to MMU, its reference counter
  is incremented
- Whenever and address environment is unmapped from MMU, its reference
  counter is decremented, and tested. If no more references -> drop the
  address environment and release the memory as well
- To limit the context switch delay, the address environment is freed in
  a separate low priority clean-up thread (LPWORK)
- When a process temporarily instantiates another process's address
  environment, the scheduler will now know of this and will restore the
  correct mappings to MMU

Why is this not causing more noticeable issues ? The problem only happens
under the aforementioned special conditions, and if a context switch or
IRQ occurs during this time.
2023-02-08 02:51:23 +08:00
chao an
415a09115d boards/sim/windows: enable custom options
1. boards/sim: enable child status
2. boards/sim/windows: enable custom options
3. sim/windows: enable hostfs

Signed-off-by: chao an <anchao@xiaomi.com>
2023-01-16 20:30:39 +08:00
Jukka Laitinen
70de321de3 arch/Kconfig: remove virtual memory allocator dependency from MM_SHM
The dependency should be vice versa; the MM_SHM should depend on the
existence of the virtual memory range allocator.

Create a new CONFIG flag CONFIG_ARCH_VMA_MAPPING, which will define that
there is a virtual memory range allocator. Make MM_SHM select that flag

Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
2023-01-13 02:20:13 +08:00
Xiang Xiao
8a265e274d Kconfig: Remove EXPERIMENTAL for features which is been around a long time
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-09-19 11:39:22 -03:00
Xiang Xiao
c44a7cbf88 arch: Add ARCH_COVERAGE_ALL option
so the user could disable the full image instrumentation,
but enable the instrumentation by files or directories.

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-08-23 17:50:52 +02:00
Jiuzhu Dong
9d4549d48b arch: limit output maximum size stackdump when sp is not within stack
Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
2022-07-27 20:48:33 +08:00
qinwei1
e77b06721b arch: arm64: ARMv8-A support for NuttX
N/A

Summary:

Arm64 support for NuttX, Features supported:

1. Cortex-a53 single core and SMP support: it's can run into nsh shell at
   qemu virt machine.

2. qemu-a53 board configuration support: it's only for evaluate propose

3. FPU support for armv8-a: FPU context switching at NEON/floating-point
  TRAP is supported.

4. psci interface, armv8 cache operation(data cache) and smccc support.

5. fix mass code style issue, thank for @xiaoxiang781216, @hartmannathan @pkarashchenko

Please refer to boards/arm64/qemu/qemu-a53/README.txt for detail

Note:
1. GCC MACOS issue
The GCC 11.2 toolchain for MACOS may get crash while compiling
float operation function, the following link describe the issue
and give analyse at the issue:

https://bugs.linaro.org/show_bug.cgi?id=5825

it's seem GCC give a wrong instruction at certain machine which
without architecture features

the new toolchain is not available still, so just disable the MACOS
cibuild check at present

Signed-off-by: qinwei1 <qinwei1@xiaomi.com>
2022-07-14 09:35:49 -04:00
Xiang Xiao
c1082f04d3 libxx: Make HAVE_CXXINITIALIZE workable even HAVE_CXX isn't enabled
since this infrastructure is also used in no c++ case(e.g. gcov)

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-05-04 08:58:43 +02:00
Xiang Xiao
2dbf826c19 config: It's enough to let LTO_FULL depend on ARCH_TOOLCHAIN_GNU only
since ARCH_TOOLCHAIN_CLANG automatically select ARCH_TOOLCHAIN_GNU

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-04-28 11:25:00 +09:00
Ville Juven
a014daf44f RISC-V: Add implementation for vfork 2022-04-25 15:44:32 +08:00
chao.an
0315283c21 arch/clang: add support for Clang LTO
add support of Clang's Link Time Optimization (LTO) on NuttX build system

Reference:
https://gcc.gnu.org/onlinedocs/gccint/LTO-Overview.html
https://llvm.org/docs/LinkTimeOptimization.html

Signed-off-by: chao.an <anchao@xiaomi.com>
2022-04-21 01:21:54 +08:00
Xiang Xiao
d80c2d7419 arch/arm: Remove all lazy fpu related code
since it is broken and inefficient, and then removed by:
commit dc961baaea
Author: chao.an <anchao@xiaomi.com>
Date:   Thu Apr 14 18:07:14 2022 +0800

    arm/armv7-[a|r]: move fpu save/restore to assembly handler

    Save/Restore FPU registers in C environment is dangerous practive,
    which cannot guarantee the compiler won't generate the assembly code
    with float point registers, especially in interrupt handling

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

commit 8d66dbc068
Author: chao.an <anchao@xiaomi.com>
Date:   Thu Apr 7 13:48:04 2022 +0800

    arm/armv[7|8]-m: skip the fpu save/restore if stack frame is integer-only

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

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2022-04-19 11:09:36 +03:00
Abdelatif Guettouche
a5c64adbe4 arch/Kconfig: Move the DUMP_ON_EXIT option out of the Bring-up group.
Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>
2022-04-13 21:59:23 +08:00
Petro Karashchenko
757d01d915 progmem: eliminate PROGMEM_ERASESTATE configuration option
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
2022-03-22 10:01:41 -03:00
Huang Qi
edef327655 arch/arm: Move ARCHCPUFLAGS to Toolchain.defs
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
2022-03-19 02:24:00 +08:00
Abdelatif Guettouche
b10c8955cf arch/Kconfig: Don't depend on Xtensa for the SUPPRESS_CLOCK_CONFIG
option.  This config was probably added in the early bring up of the
ESP32 chip. At that point the clock config was suppressed and we relied
on the bootloader.  Now we can configure the clock from NuttX.

The option itself is still useful and can be used for any other
architecture or chip.

Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>
2022-03-17 14:33:12 -03:00
chao.an
22e71e2d71 board/sim: add support of custom optimization level
Signed-off-by: chao.an <anchao@xiaomi.com>
2022-03-14 23:25:26 +08:00
Huang Qi
69cfe8d626 arch/arm: Support setjmp/longjmp for all socs
After check the official specification of ARM ISA
and Thumb ISA, the arch_setjmp_thumb.S are written
by arm unified assembly language,
so it easy to make it works for ARM and thumb ISA.

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
2022-03-09 17:13:21 +02:00
Huang Qi
c6e636a871 arch/risc-v: Save/Load float register in setjmp
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
2022-03-09 10:15:54 +02:00
chao.an
a14ed02571 sim/syscall: add syscall note support in the flat build
Signed-off-by: chao.an <anchao@xiaomi.com>
2022-03-07 23:58:28 +08:00
zhuyanlin
c833048484 xtensa:kconfig: move ARCH_HAVE_TESTSET config to chip
Some xtensa arch have not implentment testset instructions

Signed-off-by: zhuyanlin <zhuyanlin1@xiaomi.com>
2022-02-10 14:22:58 +08:00
zouboan
74aeb5d0c5 port nuttx to sparc-v8 commit
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
2022-01-17 09:09:29 -03:00
Xiang Xiao
186ac17f1f arch: Select ARCH_HAVE_BACKTRACE in Kconfig for supported arch
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2021-12-29 13:34:02 +08:00
Abdelatif Guettouche
4f0dd95fe1 arch/Kconfig: Add HAVE_SYSCALL_HOOKS configs to Xtensa arch.
Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>
2021-12-22 06:26:36 -06:00
Juha Niskanen
54b652235c Update arch/Kconfig
Co-authored-by: Gustavo Henrique Nihei <38959758+gustavonihei@users.noreply.github.com>
2021-12-21 03:26:16 -06:00
Juha Niskanen
422ceec99b Fix typos in comments and Kconfig files
Signed-off-by: Juha Niskanen <juha.niskanen@haltian.com>
2021-12-21 03:26:16 -06:00
Huang Qi
8ce3337e85 arch/risc-v: Implement TLS support
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
2021-12-12 10:19:00 -06:00
Huang Qi
58e0781e2e arch/arm: Implement TLS support
Signed-off-by: Huang Qi <no1wudi@qq.com>
2021-12-07 23:31:41 -06:00
Andres Sanchez
064f6c8c55 add MTDIOCTL_PROGMEM_ERASESTATE support
Signed-off-by: Andres Sanchez <tito97_sp@hotmail.com>

solve style check errors.
2021-11-16 14:45:03 -03:00
zhuyanlin
5a4140f020 arch:xtensa: add setjmp xtensa function
N/A

Signed-off-by: zhuyanlin <zhuyanlin1@xiaomi.com>
2021-11-06 07:39:27 -05:00