35e949ef5e
Kernel: Fix syscall return value in 32 bit
2023-04-21 11:08:02 +03:00
fdb4eb6042
Kernel: Move kmalloc and MMU to Memory directory
2023-04-18 10:18:15 +03:00
c936aac777
Kernel: Optimize scheduler idling
...
Now after each interrupt we will ask the scheduler to reschedule
if the current thread is the idle thread. This allows semaphore
unblocking to be practically instant when there is only one thread
executing.
Now disk reading is back to ~3 MB/s for single threaded process
2023-04-03 01:51:05 +03:00
8b8e3cbbf0
Kernel/Userspace: Start initial work on userspace and syscalls
2023-03-13 15:32:46 +02:00
c9ea22f5e2
Kernel: IDT now confirms that it allocated succesfully
2023-02-22 21:48:40 +02:00
d9c05b7378
Kernel: rewrite the whole kmalloc (again)
...
Performance of the old kmalloc implementation was terrible.
We now use fixed-width linked list allocations for sizes <= 60 bytes.
This is much faster than variable size allocation.
We don't use bitmap scanning anymore since it was probably the slow
part. Instead we use headers that tell allocations size and aligment.
I removed the kmalloc_eternal, even though it was very fast, there is
not really any need for it, since the only place it was used in was IDT.
These changes allowed my psf (font) parsing to go from ~500 ms to ~20 ms.
(coming soon :D)
2023-02-22 16:32:50 +02:00
1bd8b0fe5c
Kernel: Sleep now actually sleeps and allows idling
2023-02-19 18:52:25 +02:00
c85b97abee
Kernel: fix some of i368 IDT. This was really broken
2023-02-02 15:52:06 +02:00
9b8de5025a
All: rename every function from UpperCamelCase to snake_case
...
This was a mess since I didn't know which to use but now I decided
to go with snake_case :)
2023-02-01 21:05:44 +02:00
6dc22b7251
Kernel: Add actual register values to x86_64 kernel panic
...
Very hackish implementation, but we now get actual registers at the
time of the interrupt happening
2023-01-30 18:52:38 +02:00
e87026f01d
Kernel: I have no idea what this commit does
...
I had committed a change in IDT but reverted it now.
This propably only adds a spurious interrupt detection to common cpp
interrupt handler?
2023-01-26 02:55:37 +02:00
c4670f49d4
Kernel: Refactor some IDT code
2023-01-25 19:19:28 +02:00
ba53582f23
Kernel: Rewrite APIC and PIC more OOP friendly
...
x86_64 port is slowly coming together
2023-01-23 20:13:57 +02:00
62469c529f
Kernel: IDT now allocates descriptors with kmalloc_eternal
2023-01-22 03:18:42 +02:00
fbfb3d6b70
Kernel: IDT cleanup GateDesctiptor usage
...
And move everything to IDT namespace
2023-01-22 02:06:43 +02:00
558374a47c
Kernel: IDT flush only once in initialization
2023-01-22 02:06:43 +02:00
6e24ef8323
Kernel: IDT cleanup Kernel panic messages
2023-01-22 02:06:43 +02:00
3e8fbbaabd
Kernel: Fix small typos in IDT
2023-01-22 01:12:47 +02:00
77e82de51e
Kernel: Make IDT exceptions use a single Kernel:Panic
...
This allows IDT to print exceptions even when we dont have TTY
2023-01-13 15:04:06 +02:00
4c7950cd3e
Kernel: remove unused function from IDT
2023-01-13 00:02:39 +02:00
efd8638a96
Kernel: Improve kernel panic message and rename it 'panic'->'Panic'
2023-01-09 21:57:03 +02:00
f51ca4b642
Kernel: Rewrite IDT exception kernel panic message
2022-12-30 20:03:09 +02:00
ef0b2010e0
Kernel: Add basic PS/2 Mouse driver
2022-12-30 19:38:21 +02:00
3e8590687f
Kernel: Cleanup code and move kmalloc initialization to later
2022-12-28 04:16:21 +02:00
f7eb85babd
Kernel: IDT exceptions print better errors now
2022-12-23 15:56:10 +02:00
c8866aa88b
Kernel: Move GDT and IDT assembly to inline assembly
2022-12-19 11:46:38 +02:00
0bdb01ee04
Kernel: Replace PIC with APIC
...
If APIC/IOAPIC is not found, we fallback to PIC
Interrupts don't seem to work on real hardware (?)
2022-12-19 11:46:25 +02:00
f6def7a747
Kernel: initialize every irq handler to nullptr
2022-12-13 00:57:48 +02:00
e998615253
Kernel: Move GDT and IDT files to architecture specific folder
2022-12-08 17:50:04 +02:00
Bananymous