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765 Commits

Author SHA1 Message Date
Bananymous 37cd4ed504 Kernel: Add support for CSI @, b, d to VirtualTerminal 2024-08-22 14:04:45 +03:00
Bananymous 23194d1f53 Kernel: Implement basic random device to /dev/random 2024-08-22 14:02:26 +03:00
Bananymous 5cd7b40165 Kernel: Make BananBootloader info struct header compatible with C 2024-08-18 20:51:10 +03:00
Bananymous c7b134ba4b Kernel: Fix NVMe controller namespace numbering 
namespace numbers were incrementing globally instead of per controller.
This led to two single namespace controllers creating nvme0n1 and
nvme1n2
 2024-08-18 20:51:10 +03:00
Bananymous 42e2c15e0c Kernel: Add ps2=<scancode set> command line argument 
This allows forcing specific scancode set on broken PS/2 emulations
 2024-08-18 20:51:10 +03:00
Bananymous 40c6989374 Kernel: Implement AML ObjectTypeOp 2024-08-18 20:51:10 +03:00
Bananymous 0fa16cf982 Kernel: Fix and add some AML to_underlying functions 2024-08-18 20:44:51 +03:00
Bananymous 368f5e9799 Kernel: Add command lineoption `nousb` that will disable usb controller 2024-08-16 22:09:24 +03:00
Bananymous 490a28ee7a Kernel/AML: General cleanup and compliance improvements 2024-08-15 23:14:13 +03:00
Bananymous d729d7f570 Kernel: Implement AML storing to Buffer 2024-08-15 23:12:52 +03:00
Bananymous 6408bb2efa Kernel: Add AML API for getting underlying value of nodes 2024-08-15 23:11:59 +03:00
Bananymous d8dabab4fb Kernel: Implement AML CopyObjectOp 2024-08-15 20:55:55 +03:00
Bananymous 4dc107f77a Kernel: Fix AML Register/Reference accesses 2024-08-15 20:55:18 +03:00
Bananymous eaf06d239c Kernel: Cleanup and fix AML Method calls 2024-08-15 20:54:55 +03:00
Bananymous d9b3a4bf77 Kernel: Add more conversions for AML Integer, Register, String 2024-08-15 20:51:04 +03:00
Bananymous cf970d5914 Kernel: Add better conversion for AML Alias, Name and Reference 2024-08-15 20:48:35 +03:00
Bananymous 1cfe3dd4da Kernel: Implement AML BreakOp and ContinueOp 2024-08-15 19:08:00 +03:00
Bananymous 51d1e47bfe Kernel: Fix AML CreateFieldOp to take bit index instead of byte index 2024-08-15 19:05:58 +03:00
Bananymous e0a447bfaf Kernel: Add _GL to ACPI root namespace 2024-08-15 02:28:22 +03:00
Bananymous 3f5ee6f414 Kernel: Rewrite the AML conversion API 
This doesn't currently make the interpreter any better, but it will make
further implementation easier to be spec (or hardware...) compliant
 2024-08-15 02:25:45 +03:00
Bananymous 44d5c8c4b4 Kernel: Implement AML To{Buffer,Integer,String}Op 2024-08-14 20:28:32 +03:00
Bananymous 17b7e9e772 Kernel: Allow all named objects to fail cleanly if name exists 2024-08-14 20:28:00 +03:00
Bananymous 957df08932 Kernel: root command line option can be specified as an UUID 
Format is the same as in linux
root=UUID=XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX

This makes it easier to boot when computer has multiple disks installed
 2024-08-14 13:23:27 +03:00
Bananymous 37d5b60f5c Kernel: Implement AML {Event,Reset,Signal,Wait}Op 2024-08-14 11:59:34 +03:00
Bananymous feadea0e91 Kernel: Fix AML unaligned integer reads and buffer shifts over 32 2024-08-13 23:44:17 +03:00
Bananymous f71a29b6c4 Kernel: Implement AliasOp for AML interpreter 2024-08-13 22:42:37 +03:00
Bananymous ec4cfdee23 Kernel: Fix and cleanup a lot of AML code 
Node now have APIs to convert them to buffer, integer and string. This
allows possibility to handle methods that need explicitly use one of the
overloads instead of integer.

This patch also adds handling of DebugOp. This is used quite heavily in
uACPIs test suite.
 2024-08-13 22:42:37 +03:00
Bananymous dd79db6383 Kernel: AML implement CreateFieldOp 2024-08-13 18:52:48 +03:00
Bananymous 723e458bd7 Kernel/Terminal: Update terminal color themes and fix TTY bright/dark 2024-08-12 21:15:55 +03:00
Bananymous a5a097fa4a Kernel/LibC: Add initial pseudo terminal support 
This patch implements posix_openpt() and ptsname()

grantpt() and unlockpt() are left in LibC as stubs, as posix_openpt
currently does all of the needed work.
 2024-08-11 01:02:59 +03:00
Bananymous ad645f31d0 Kernel/LibC: Add setsid() 2024-08-11 00:58:12 +03:00
Bananymous bac3219a01 Kernel: Fix `Pipe::can_read_impl()` 
The logic was inversed, which made all select calls report incorrectly
for pipes. This made terminal emulator just freeze.
 2024-08-10 18:18:25 +03:00
Bananymous 1c67b5e812 Kernel: Fix wait syscall to report status of exited children 2024-08-09 16:52:35 +03:00
Bananymous b6c964c444 Kernel: Rewrite pipes 
Pipes have now a fixed size buffer and pipe clone and close is working
again.
 2024-08-09 16:50:19 +03:00
Bananymous 44f0ec601f Kernel: Expose /proc/meminfo and fix /proc/<pid>/meminfo 
Thread was unconditionally calling <stack>->size() without validating
that the stack actually exists
 2024-08-09 15:58:56 +03:00
Bananymous a33b63d066 Kernel/LibC: Implement alarm() and setitimer() 
This makes vim able to start!
 2024-08-01 21:09:56 +03:00
Bananymous 6de350ce9d Kernel/LibC: Cleanup, fix and implement a lot of signal code 
This patch implements sigsets and some of their usages
 2024-08-01 17:01:18 +03:00
Bananymous 838d31fa41 Kernel: Implement more POSIX compliant open() and openat() syscalls 2024-08-01 15:35:02 +03:00
Bananymous f0be4f86a6 LibC/Kernel: Implement access 2024-07-30 11:51:07 +03:00
Bananymous e5bb843059 LibC/Kernel: Implement ttyname 2024-07-30 11:41:18 +03:00
Bananymous 681d8327f5 LibC/Kernel: Cleanup termios code 
This is still not correct, but much better than it used to be
 2024-07-30 11:10:43 +03:00
Bananymous 9bc02c81f8 Kernel: Map DMA and PCI MMIO as uncached 2024-07-30 11:10:08 +03:00
Bananymous bb1738db8c Kernel: Make thread unblocking O(1) 
This is still bit broken. VirtualBox seems to freeze sometimes, but I
could not recreate this on qemu (with and without kvm) or real hardware.
 2024-07-24 00:31:01 +03:00
Bananymous cda0276d39 Kernel: Force PCI irq line usage when not using APIC 
afaik PIC does not support MSI
 2024-07-23 09:08:00 +03:00
Bananymous 539afb329a Kernel: All processors use LAPIC timer when running with APIC 
This makes scheduler preemption much cleaner as bsb does not have to
send smp messages to notify other processes about timer interrupt.

Also PIT percision is now "full" 0.8 us instead of 1 ms that I was using
before.
 2024-07-23 02:28:52 +03:00
Bananymous 3e0150f847 Kernel: Pressing F1 now toggles rendering of CPU loads to the terminal 
This can be nice for seeing the performance and problems on the load
balancing algorithm.
 2024-07-22 00:43:13 +03:00
Bananymous f8261c60c0 Kernel: Rewrite the whole scheduler and re-architecture SMP handling 
Change Semaphore -> ThreadBlocker
  This was not a semaphore, I just named it one because I didn't know
  what semaphore was. I have meant to change this sooner, but it was in
  no way urgent :D

Implement SMP events. Processors can now be sent SMP events through
IPIs. SMP events can be sent either to a single processor or broadcasted
to every processor.

PageTable::{map_page,map_range,unmap_page,unmap_range}() now send SMP
event to invalidate TLB caches for the changed pages.

Scheduler no longer uses a global run queue. Each processor has its own
scheduler that keeps track of the load on the processor. Once every
second schedulers do load balancing. Schedulers have no access to other
processors' schedulers, they just see approximate loads. If scheduler
decides that it has too much load, it will send a thread to another
processor through a SMP event.

Schedulers are currently run using the timer interrupt on BSB. This
should be not the case, and each processor should use its LAPIC timer
for interrupts. There is no reason to broadcast SMP event to all
processors when BSB gets timer interrupt.

Old scheduler only achieved 20% idle load on qemu. That was probably a
very inefficient implementation. This new scheduler seems to average
around 1% idle load. This is much closer to what I would expect. On my
own laptop idle load seems to be only around 0.5% on each processor.
 2024-07-22 00:33:50 +03:00
Bananymous 8fe798de6d Kernel: Make PIT counter atomic with spinlock 2024-07-21 18:56:41 +03:00
Bananymous 77b5e6d44a Kernel: Make ATABus use BAN::Atomic<> instead of gcc builtin atomics 2024-07-21 17:39:26 +03:00
Bananymous 96c7e9e29d Kernel: Cleanup VirtualRange code 
Virtual range does not need to look into the page table for mapped
physcial pages. It can (and should) just keep track of them itself.
 2024-07-21 17:35:07 +03:00