a370ef69f6
config: lower default sched freq to 200 Hz
...
1 kHz was way too much (the CPU could barely get
anything done in a time window of just 1 ms) and
the task can be put to sleep due to system calls
anyway, so this should be fine.
2021-08-12 16:31:59 +02:00
2ea850cead
init: use correct mm init function name
2021-08-12 14:35:06 +02:00
fb9ec2a8bc
mm: make malloc and free system calls
...
This is required because the heap is shared among
all tasks and protected using a mutex which only
works in kernel space.
2021-08-12 14:34:18 +02:00
040b5af5d6
malloc: poison heap when DEBUG is defined
2021-08-11 23:12:10 +02:00
8293d9372b
mutex: don't rely on malloc for waitqueue
2021-08-11 22:49:53 +02:00
b7e9187740
main: move kernel start routine to kernel/
2021-08-10 22:30:11 +02:00
75d2fb4470
vscode: fix debug config file location
2021-08-10 22:09:40 +02:00
60ec99692c
serial: "fix" buffer truncation bug
...
DMA just uses one buffer rather than two now lmao
2021-08-10 22:08:44 +02:00
d1805c2f00
dma: make memory allocations atomic
2021-08-10 18:07:55 +02:00
10e8b00fb0
sched: avoid memory allocation for kernel task
2021-08-10 17:49:29 +02:00
4287759c46
mutex_init: remove force inline
2021-08-10 17:48:53 +02:00
fb49965e95
atomic_enter: actually mask interrupts
2021-08-10 17:48:23 +02:00
279397167a
config: set CONFIG_SERIAL_BAUD min to 1200
2021-08-10 13:29:56 +02:00
1bc2448c91
arch: move build related files to subdirectory
2021-08-10 00:55:03 +02:00
d4411fd6b6
mutex: add wait queue and spinlocks
2021-08-10 00:44:36 +02:00
faa99622df
malloc: check for underflow in blk_slice
2021-08-09 23:06:50 +02:00
1d30394cec
sched: add idle task entry i forgot to commit
2021-08-09 22:51:35 +02:00
c79fadaf06
sched: set PendSV priority, fix _leave routine
2021-08-09 19:26:49 +02:00
f5590becd3
syscall: add sleep system call
2021-08-09 19:20:40 +02:00
02ed1b5779
malloc: mask flags for neighbor offset
2021-08-09 19:18:26 +02:00
f85006f224
malloc: remove obsolete assert statements
...
A relict of debugging on my host.
2021-08-09 04:05:07 +02:00
8e9678577e
malloc: fix my shit code so it's less shitty
...
The allocator works now.
At least when i compile it for amd64.
I haven't actually flashed it yet tho lmao.
2021-08-09 04:03:54 +02:00
83ee9603e7
file: add file kevent and i/o wait support
2021-08-08 20:58:54 +02:00
364290f192
arch: add files i fucking forgot to commit
2021-08-08 20:52:44 +02:00
59db5471ed
malloc: rewrite with atomic support
2021-08-08 20:49:42 +02:00
7e6dbad05f
sched: complete rework of context switching
...
The old strategy was to only do context switching
from within the PendSV handler. This worked fine
until now because all syscalls were handled either
atomically or just returned -EAGAIN if the
resource was locked or busy. However, with the
introduction of I/O wait, we need to be able to
sleep directly from within the kernel by moving
the context switching completely into the kernel.
2021-08-08 20:48:55 +02:00
60f1ebea8a
arch: use CMSIS after all
...
It was inevitable, tbh. I really wanted to do
everything entirely from scratch, but all those
hardware registers are just too much to be
maintained by a single person. And since i plan
on supporting different boards at some point in
the future, it would be complete madness to redo
everything for that board.
2021-08-07 14:30:09 +02:00
b122e54ec8
handle_fault: fix hex stringification algo
2021-08-05 20:50:45 +02:00
e96ee14e68
sched: make sleeping actually work
2021-08-05 18:52:51 +02:00
b4046795c8
list: fix shit
2021-08-05 17:11:54 +02:00
c24b183c60
init: fix init array pointer dereference bullshit
2021-08-05 16:29:18 +02:00
6287cb79be
stdint.h: now even less POSIX-noncompliant!
2021-08-05 16:16:16 +02:00
6d886d7252
syscall: refactor names
2021-08-05 16:15:35 +02:00
6e269e0217
sched: refactor and implement sleep
2021-08-05 16:14:18 +02:00
0e6d0057a8
arch: call init and preinit array
2021-08-05 16:08:09 +02:00
4359f43b0e
kevent: refactor callback system
2021-08-04 15:46:51 +02:00
30404f60d4
kevent: initialize kevents during boot
2021-08-04 03:31:21 +02:00
b053cc3279
list: fix list_for_each_entry_safe
2021-08-04 03:30:29 +02:00
203c167822
kevent: add device kevent
2021-08-04 03:29:52 +02:00
f89aa9dc4e
sched: add idle task
2021-08-04 03:25:04 +02:00
e291a51d2f
kevent: add event system
2021-08-03 22:44:28 +02:00
5ffa784b77
arch: make exclusive stores fail after interrupts
2021-08-03 21:19:09 +02:00
1b1e48e54b
printf: simplify address expressions
2021-08-03 21:15:28 +02:00
528785d40e
malloc: track memory usage and clarify docs
2021-08-03 17:35:58 +02:00
711970ae10
README: clarify what architectures are supported
2021-08-03 17:35:08 +02:00
a8295db11b
vscode: update C settings to match CMake
2021-08-03 17:34:13 +02:00
c806c21936
arch: move vector table to separate file
2021-08-03 17:33:35 +02:00
4f9423efbb
arch: declare registers volatile
2021-08-03 14:42:24 +02:00
86c95f3fff
gitignore: ignore hidden files in .vscode
2021-08-03 14:41:58 +02:00
05662bc39e
arch: add fault handlers, rename exceptions
2021-08-03 14:41:36 +02:00
