Bananymous/banan-os
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Author SHA1 Message Date
Bananymous 82fd57af9e Kernel: Use local labels in assembly 2026-08-22 11:57:19 +03:00
Bananymous 2f25bfb2db Kernel: Use min heap for scheduler block list 
This makes insertion to block list O(log n) instead of O(n) when
blocking with wake time. This is more heavy and currently slower than
the previous implementation, but that is just because we don't really
have too many threads running at any given time. This will be more
scalable in the future and even allows implementing priorities if I ever
wish so
 2026-08-19 21:32:36 +03:00
Bananymous 7f12e5aaf3 Kernel: Report actual hw volume from AC97 2026-08-19 21:32:36 +03:00
Bananymous 78e40ca353 AudioServer: Add software volume control 2026-08-19 21:32:36 +03:00
Bananymous 1231b16cc3 Kernel: Add mixer support to IHDA 
This has not been tested as I don't have any hardware with mixers on
output paths :P
 2026-08-19 21:32:36 +03:00
Bananymous 6cd3638a85 Kernel: Send set channel count on IHDA 2026-08-19 21:32:36 +03:00
Bananymous 4aead25970 Kernel: Cleanup IHDA volume control and report the actual volume 2026-08-19 21:32:36 +03:00
Bananymous 36b34b0df0 Kernel: Don't store copy of palette in virtual TTY 
It can be just queried from the terminal driver
 2026-08-19 21:32:36 +03:00
Bananymous bf0bd19289 Kernel: Refactor includes to reduce include dependencies 
Now modifying Scheduler.h or Thread.h doesnt trigger practically a full
kernel rebuild. This required moving Mutex and RWLock of of line but
that should be fine :^)
 2026-08-19 21:32:36 +03:00
Bananymous 8cd9e6dfa8 Kernel: Keep track of thread user and system time separately 2026-08-19 21:32:36 +03:00
Bananymous f0a114f4e5 Kernel: Fix shm object freeing and track lpid 
I was deleting based on the key instead of the id which of course does
not work :D
 2026-08-19 21:32:36 +03:00
Bananymous ac99bf128b LibAudio: Rename AudioLoader -> AudioStream 2026-08-19 21:32:36 +03:00
Bananymous 2c66de888f BuildSystem: Add option to generate an ISO file 
This creates ISO file with compressed initrd and grub files that can be
live booted easily
 2026-08-19 21:32:36 +03:00
Bananymous 8f4db57ed8 WindowServer: Mark old window area as damaged on resize 2026-08-17 04:58:35 +03:00
Bananymous b6f922895f AudioServer: Queue more than 4k bytes per write 
Before this I was writing audio data to kernel in ~20 ms chuncks. This
feels like way too many syscalls, so now we allow sending upto 1 second
per syscall :D
 2026-08-17 04:44:15 +03:00
Bananymous 7aa8eb1778 Kernel: Use 64 bit write on HPET on x86_64 2026-08-17 04:33:20 +03:00
Bananymous 1128e440d2 Kernel: Fix typos and fix power button status clear 2026-08-17 04:32:26 +03:00
Bananymous ac052fe1c1 Kernel: Program missing entries from redirection entries 
This wasnt an issue but could be in the future
 2026-08-17 04:23:04 +03:00
Bananymous c915c064e8 BuildSystem: Compile cross gcc with optimizations 
I guess because I now pass explicit CXXFLAGS, gcc did not add the
default optimization flags
 2026-08-11 18:26:06 +03:00
Bananymous 895c586736 LibC: Add uchar.h 
This was added in POSIX issue 8 and some ports end up with very weird
compile errors if this does not exist :D
 2026-08-08 05:43:34 +03:00
Bananymous 04b8f9d7a3 LibC: Fix stdc++ requirement in getpagesize 2026-08-08 03:44:27 +03:00
Bananymous 6e99eed541 WindowServer: Cleanup damaged areas 2026-08-08 01:53:07 +03:00
Bananymous fc40820150 Kernel/Userspace: Replace my custom SHM system with SysV shm 
This allows xbanan to use shm!
 2026-08-08 01:52:12 +03:00
Bananymous 2c4fee4a82 Kernel: Expose Inode::can_access as static member 2026-08-08 01:41:48 +03:00
Bananymous 2be915a1df ports: Update xbanan 2026-08-08 01:30:09 +03:00
Bananymous 1a8351eae0 LibC: Cache page size in getpagesize 2026-08-05 05:41:31 +03:00
Bananymous 328771ae29 Kernel: Fix AC97 issues 
Set last entry bit on the last entry :D

Verify that allocated DMA buffer fits in a 32 bit integer
 2026-07-20 11:30:06 +03:00
Bananymous 0b53fba991 Kernel: Fix PCI PIN interrupt allocation and handling 
We now use the correct PIN interrupt from the interrupt line field
instead of writing to it, this had no effect :D

PIN interrupts are now mapped as shared and level triggered, this
properly allows PIN interrupt sharing with multiple devices
 2026-07-20 10:45:32 +03:00
Bananymous 0d390e2246 Kernel: Send EOI after handling the interrupt 
There is no need to send it prior to handling. This required us to not
yield from HPET/PIT irq so that the EOI actually gets sent
 2026-07-20 10:43:50 +03:00
Bananymous a3b7a758eb Kernel: Allow allocating shared interrupts and setting trigger mode 2026-07-20 10:28:18 +03:00
Bananymous d46d7a5123 Kernel: Cleanup entering acpi mode 
There is no need to pass the current mode as an argument as ACPI has
access to that info either way.

Only route INTx objects when using ACPI, they won't be used otherwise
 2026-07-20 09:02:18 +03:00
Bananymous b611c3fe48 LibC: Support in-place realloc for mmap backed allocations 
When shrinking a mmap based allocation, we can just unmap the trailing
pages that will no longer be needed. When extending an allocation we try
to MMAP_FIXED_NOREPLACE the need extra data to avoid memcpy between old
and new allocation. I'm not sure if the extension logic is really worth
it but it is just 15 lines of code to avoid possibly very large memcpys.
 2026-07-20 06:58:30 +03:00
Bananymous 8c6e402ee8 LibC: page align mmap backed malloc sizes 
This will make reallocations cleaner
 2026-07-20 06:58:30 +03:00
Bananymous bd5be982e9 LibC: Don't memset 0 mmap'd callocs 
There is no reason to page everything in and the kernel already
guarantees that the memory is zeroed in mmap
 2026-07-20 06:58:30 +03:00
Bananymous 33f941f2fd LibC: Unmap unused pages in aligned mallocs 2026-07-20 06:58:30 +03:00
Bananymous 8368dec30b LibC: Fix posix_memalign return value 
I was returning -1 with errno instead of the error code :P
 2026-07-20 06:58:30 +03:00
Bananymous 7f25350c62 LibC: Fix malloc mmap byte tracking 
I was incrementing instead of decrementing when freeing mmap allocs
 2026-07-20 06:58:30 +03:00
Bananymous 64523b6c70 LibC: Fix futex return value handling 2026-07-20 06:58:30 +03:00
Bananymous a9cf0134b7 Kernel: Don't block thread if the wake time has already passed 2026-07-20 06:58:30 +03:00
Bananymous 2e8239fefa Kernel: Fix thread block timeout 
I was comparint ms against ns making timeouts practically never wake up
:)
 2026-07-20 06:58:30 +03:00
Bananymous f2bf406db7 ports: Add ccleste port 2026-07-20 06:58:30 +03:00
Bananymous 63a8f40e67 ports/quake2: Clenaup build script and patches 2026-07-20 06:58:30 +03:00
Bananymous 2ddee7016e Kernel: Fix another scheduler bug :^) 2026-07-20 06:58:30 +03:00
Bananymous bc622c8b51 LibC: Fix pthread default guard size and name 2026-07-20 06:58:30 +03:00
Bananymous 6ebd3a8aca Kernel: Rewrite the AHCI driver 
There was a lot of stuff wrong with this driver and it was only getting
speeds of ~2.5 MB/s. Now 4K blocks get ~17 MB/s which is not good but
definitely better. I'm pretty sure the issue is qemu's emulation as 85%
of time is spent between sending the command and it to complete.
Large blocks are now supported too, qemu with block size 1M gets around
600 MB/s read speeds.
 2026-07-20 06:58:30 +03:00
Bananymous 96e5779182 Kernel: Fix out of bounds reads on storage devices 2026-07-20 04:07:23 +03:00
Bananymous 02f05436fc Kernel: Fix zero sized reads from a partition 2026-07-20 04:07:23 +03:00
Bananymous 51251e492e Kernel: Fix fallback PS/2 interrupt numbers 
I haven't used the fallbacks in so long that I didn't realize they were
wrong :D
 2026-07-20 04:07:23 +03:00
Bananymous 20e36125c8 Kernel: Cleanup very old AHCI code 2026-07-20 04:07:23 +03:00
Bananymous 19c228362b Kernel: Make ext2 block buffers page aligned 2026-07-20 04:07:23 +03:00