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1103 Commits

Author SHA1 Message Date
Bananymous e667326df5 Kernel: Fix AML if parsing 
Parse else case unconditionally, even if _if_ case evaluates to true
 2024-04-16 17:36:04 +03:00
Bananymous f1b2d7530d Kernel: Rework AML namespace and object hierarchy 
Remove tree-like structure from AML. This allows more spec compliant
parsing of named objects inside not yet declared devices.

This also allows AML to be run thread safely. All object adds/removes
are now guarded by a mutex.
 2024-04-16 16:47:45 +03:00
Bananymous b6587b32b9 Kernel: ACPI ignore events from non-existent ports 2024-04-16 00:00:07 +03:00
Bananymous b89bafa165 Kernel: Add support for power button shutdown 
This patch implements basic support for power button using ACPI
fixed events. I still need to implement general purpose events
and embedded controller for full power button support.
 2024-04-15 23:55:25 +03:00
Bananymous 9fac5f94ba Kernel: Fix entering ACPI mode 
My condition to check wheter to enter ACPI mode was incorrect.
I only entered ACPI mode if I already was in ACPI mode :DD
 2024-04-15 15:05:48 +03:00
Bananymous 5affc73ee6 Kernel: Parse ACPI namespace only after TTY is initialized 
This allows better debugging when there is no serial port available.
 2024-04-12 16:47:17 +03:00
Bananymous 027016ddae Kernel: Load all SSDTs and PSDTs 
Spec says to load all tables with unique OEM table IDs but that seem
wrong.
 2024-04-12 16:45:00 +03:00
Bananymous 8f2f98b7b4 Kernel: AML implement SleepOp 2024-04-12 16:17:14 +03:00
Bananymous 6b43d12469 Kernel: AML package doesn't mark ZeroOp as NullName reference 2024-04-12 16:10:16 +03:00
Bananymous 74940ed33c Kernel: Cleanup AML code and fix bugs 
I can enter ACPI mode on my own laptop!
 2024-04-12 16:03:14 +03:00
Bananymous 17871bb3ca Kernel: Fix ACPI namespace initialization 
ACPI spec says that only SSDTS with unique OEM table IDs are to be
loaded.

Add loading of ACPI 1.0 PSDTs
 2024-04-12 12:41:30 +03:00
Bananymous 89c4abc07a Kernel: Cleanup AML device initialization 
_STA and _INI are now properly called on call devices
 2024-04-12 02:00:30 +03:00
Bananymous 46b5a7697c Kernel: Implement dummy \_OSI method for AML 
This always returns Zero (not supported)
 2024-04-12 01:49:54 +03:00
Bananymous dd8060d64f Kernel: Add FieldElement access attribute for AML interpreter 2024-04-12 01:49:15 +03:00
Bananymous afb1d7ef0c Kernel: Implement more features for AML parser/interpreter 
Added
   - BankField
   - BufferField
   - PowerResource
   - ThermalZone
   - Reference
   - Package element forward declare
 2024-04-12 01:47:40 +03:00
Bananymous 93ddee5956 Kernel: Implement locking for AML 
Now global lock uses the actual global lock. Currenly if no lock
can be acquired, we just panic the kernel so that I remember to
implement it properly once AML is running concurrently.
 2024-04-11 01:48:46 +03:00
Bananymous 0184e5beb5 Kernel: AML tries to initialize processors when entering ACPI mode 
I had forgotten that Processors used to be a different definition
in AML.

I also implemented reads/writes for FieldElement/IndexFieldElement
that fit in 64 bits. Reads and writes to buffer are still a TODO.
 2024-04-11 01:48:46 +03:00
Bananymous 3f2e110eab Kernel: Entering ACPI mode now actually enables ACPI 
I used to only initialize devices, but now I send ACPI_ENABLE if
machine is not hardware reduced.
 2024-04-11 00:17:03 +03:00
Bananymous 0ff68b7d66 Kernel: Make ACPI load all SSDT headers after DSDT is loaded 2024-04-10 15:03:54 +03:00
Bananymous cdbdc1a822 Kernel: Remove lai as a dependecy 
I don't think lai is needed anymore, since my own AML interpreter
can do ACPI poweroff which was all that lai was used for.
 2024-04-10 04:39:48 +03:00
Bananymous 7a2be05c69 Kernel: Implement poweroff with my AML interpreter 
This can succesfully poweroff qemu!
 2024-04-10 04:32:35 +03:00
Bananymous 5be38d0702 Kernel: My AML parser can now enable ACPI mode on QEMU! 2024-04-10 03:05:27 +03:00
Bananymous ff203d8d34 Kernel: Implement more AML method invocation stuff 
Method invocation is starting to come together. This implemenetation
can interpret some of the qemu's functions to enter ACPI mode.

PCI config space access is currently the one thing is between
entering ACPI mode.
 2024-04-10 01:52:14 +03:00
Bananymous 23fa39121c Kernel: Start working on AML method evaluations 
Also fix namespace lookup and scope creations.
 2024-04-09 18:37:51 +03:00
Bananymous b16e65168f Kernel: Rewrite whole AML parser 
Now AML parsing is actually done while respecting namespaces and
scopes. I implemented the minimal functionality to parse qemu's AML.

Next step is to implement AML interpreting and then we can drop lai
as a dependency.
 2024-04-09 01:16:07 +03:00
Bananymous 22bc4b4271 Kernel: Fix AML package parsing 2024-04-07 20:32:22 +03:00
Bananymous e01c049401 Kernel: Fix AML buffer parsing 2024-04-07 20:24:05 +03:00
Bananymous e7ef7a9e55 Kernel: Implement barebones AML parser 
This implements only parsing for AML in qemu. InvokeMethods are not
parsed since number of arguments to Methods is not yet known.

Parsing AML uses multiple kilobytes of stack space, so I increased
boot stack size by a lot :D

I am not sure where my own AML is going, but this is good start if
I decide to implement full ACPI on my own.

This code is very much just ugly macro expansion.

Qemu has 2 DefPackage elements that I am not able to parse. Package
data ends while there should be still multiple elements.
 2024-04-07 17:03:30 +03:00
Bananymous e0011d22f2 Kernel: Move ACPI to its own directory and namespace 2024-04-04 15:00:13 +03:00
Bananymous fa900df5a7 Kernel: Add signals for threads after IRQs 
This allows signals to be called even if the process does no syscalls
The old scheduler did signal handling but I feel like it should be
enough to handle them only after syscalls and IRQs. ISRs already
handle signals that caused the ISR and there is no other route to
kernel space.
 2024-04-03 15:07:18 +03:00
Bananymous 7ef751ba95 Kernel: Fix multiprocessor for i686 
i686 is now actually ran with multiple processors.
 2024-04-03 14:42:17 +03:00
Bananymous f8c01418b1 Kernel: Fix multiprocessing on x86_64 
I did not even start APs after initializing them... :D
 2024-04-03 14:21:55 +03:00
Bananymous d2df55b1ac Kernel: Allow booting with multiple processors on i686 
Also remove unnecessary ds clearing in x86_64.
 2024-04-03 02:30:38 +03:00
Bananymous 0dd74e3c9d Kernel: Implement syscalls for i686 and cleanup x86_64 
This actually allows i686 to boot properly!
 2024-04-03 02:23:23 +03:00
Bananymous 9e073e9fa0 Kernel: Add offset for interrupt stack in Scheduler::yield() 
This allows accessing (garbage) sp and ss in interrupt stack.
 2024-04-03 00:45:22 +03:00
Bananymous c95a271821 Kernel: Set ss in i686 tss 2024-04-03 00:43:38 +03:00
Bananymous fe386fa819 Kernel: Implement thread start trampoline for userspace 
This is needed on i686 to set segment registers.
 2024-04-03 00:42:39 +03:00
Bananymous 4d70322eab Kernel: Save segment registers on all interrupts on i686 2024-04-03 00:41:13 +03:00
Bananymous d9b8391968 Kernel: Fix i686 page table global mappings 2024-04-03 00:40:16 +03:00
Bananymous 2106a9e373 Kernel: Rework scheduler/processor stacks. 2024-04-02 12:34:42 +03:00
Bananymous 5050047cef Kernel: Rewrite whole scheduler 
Current context saving was very hacky and dependant on compiler
behaviour that was not consistent. Now we always use iret for
context saving. This makes everything more clean.
 2024-03-29 18:02:12 +02:00
Bananymous 1b65f850ee Kernel: Rename thread stacks to more appropriate names 2024-03-27 15:06:24 +02:00
Bananymous 7c2933aae1 Kernel: Fix ISR error code formatting to 32 bit 2024-03-26 21:01:18 +02:00
Bananymous 96babec22a Kernel: Implement Thread trampolines for x86_32 2024-03-26 21:01:18 +02:00
Bananymous c12d1e9bd9 Kernel: Implement PageTable for x86_32 
This is mostly copied from x86_64 with necessary modifications
 2024-03-26 20:16:20 +02:00
Bananymous 4d1f0e77f2 Kernel: Fix physical address size for x86_32 
Having 32 bit address space does not mean physical address space
is also only 32 bits...
 2024-03-26 20:16:20 +02:00
Bananymous d7bf34ecd0 Kernel: Write isr handler for x86_32 and cleanup x86_64 2024-03-26 20:16:20 +02:00
Bananymous 1943c3e7a1 Kernel: Unify IDT and GDT code between x86_64 and x86_32 
The code is pretty much the same, so there are just couple macros
differiating initialization.
 2024-03-26 16:42:02 +02:00
Bananymous af050cc729 Kernel: Fix boot code for x86_32 
Boot assembly now initializes processor and jumps to kernel
 2024-03-26 13:25:22 +02:00
Bananymous 99e30a4d7d Kernel: Replace i386 with i686 
I don't really want to be working with i386 since it doesn't support
compare exchange instruction
 2024-03-26 02:48:26 +02:00
Bananymous 93975fdc45 Kernel: Process signal mask is now 2 32 bit values 
This allows signal mask to be atomic on 32 bit target
 2024-03-26 02:46:51 +02:00
Bananymous fbef90f7cb Kernel/LibC: Write cxx abi with proper locking 2024-03-26 02:28:10 +02:00
Bananymous a9db4dd9a3 Kernel: NVMe Queue max simultaneous commands is dependent on arch 
This allows mask to be atomic on 32 bit architectures
 2024-03-26 01:45:43 +02:00
Bananymous fc7e96fa66 Kernel: Rewrite i386 boot code + linker script 2024-03-26 00:10:42 +02:00
Bananymous 097d9a6479 Kernel: Implement dummy IDT and GDT for i386 2024-03-26 00:10:42 +02:00
Bananymous 2dd0bfdece Kernel: Make i386 thread tramplines crash 2024-03-26 00:10:42 +02:00
Bananymous 26585bb1d9 Kernel: Implement signal trampoline for i386 2024-03-22 15:41:15 +02:00
Bananymous 0d92719433 Kernel: Remove old i386 spinlock code 2024-03-22 15:41:15 +02:00
Bananymous 1ab2722850 Kernel: Add PageTable stub to progress linking 2024-03-22 15:41:15 +02:00
Bananymous fe17958b9f Kernel: Rename rsp->sp and rip->ip 
This makes more sense if we support i386
 2024-03-22 15:41:15 +02:00
Bananymous 3e4d410646 Kernel: Fix AHCI device physical address writing on i386 target 2024-03-22 15:41:15 +02:00
Bananymous b5aae34d86 Kernel: Specify template paramenters where they cannot be deduced 2024-03-22 15:41:15 +02:00
Bananymous 7f029b2713 Kernel: Allow Processor compilation for i386 targets 
This is achieved by rewriting some inline assembly and changing
ProcessorID to be 32 bit value. For some reason if processor id
is 8 bits gcc runs out of 8 bit registers on i386.
 2024-03-22 15:41:15 +02:00
Bananymous 0424082e7b Kernel: Only compile lai for x86_64 targets 
I will be dropping lai entirely soon. Once I get to writing AML
interpreter.
 2024-03-22 15:41:15 +02:00
Bananymous 2352c86048 Kernel: i386 has 14 indirect blocks in TmpInode instead of 2 
This allows keeping size of TmpInodeInfo as 128
 2024-03-22 14:01:27 +02:00
Bananymous c0dff5e203 Kernel: Scheduler/Thread add inline assembly for i386 2024-03-22 14:01:27 +02:00
Bananymous d920785256 Kernel: RDRAND on i386 is called twice with 32 bit register 2024-03-22 14:01:27 +02:00
Bananymous 45cea14165 Kernel: Move sys_fork trampolines to kernel/arch/ directory 2024-03-22 12:48:54 +02:00
Bananymous 26ed689d30 Kernel: Remove old GDT, IDT and MMU code from i386 
It will be easier to just rewrite them
 2024-03-22 12:47:34 +02:00
Bananymous 7ce0370b6a Kernel: Define KERNEL_OFFSET for i386 target 2024-03-22 12:35:49 +02:00
Bananymous aa2e53c4f8 Kernel: E1000 fix physical address on 32 bit target 2024-03-22 12:35:38 +02:00
Bananymous 9ecd156622 Kenrel: Ext2 fix signed-unsigned comparisons 2024-03-22 12:35:29 +02:00
Bananymous 62f6128ba1 Kernel: Cleanup NVMe Queue command submission 
There is techically a race condition on thread sleep and checking
done mask. This patch allows read to success even if this race
condition is hit, although the full timeout has to be waited.

This can be fixed in future with some sort of wait queues that
can properly handle this race condition.
 2024-03-19 13:01:27 +02:00
Bananymous 9607b4205a Kernel: Fix kernel panic on signal 
Signals are now added/handled without Scheduler's lock
 2024-03-18 16:05:47 +02:00
Bananymous 090c3c9930 Kernel: NVMe queues now supports upto 64 simultaneous operations 2024-03-15 13:46:35 +02:00
Bananymous 48ea9e1c1d Kernel: PS2Controller uses RecursiveSpinLock so timeouts don't panic 2024-03-15 13:45:44 +02:00
Bananymous 42469b83fe Kernel: kernel panic is now sent to all processors 2024-03-15 13:45:01 +02:00
Bananymous e65bc040af Kernel: Now all active processors are used in scheduling 
When a timer reschedule happens, ipi is broadcasted too all
processors for them to perform a reschedule!
 2024-03-09 23:53:50 +02:00
Bananymous 89ca4c8a8b Kernel: Implement IPI broadcasting 2024-03-09 23:53:38 +02:00
Bananymous 2323a55517 Kernel: Debug lock is locked while dumping stack trace 2024-03-09 23:52:06 +02:00
Bananymous 45d6caa1d0 Kernel: APs now start their idle threads when scheduler is started 2024-03-09 23:51:40 +02:00
Bananymous 55d2a64f54 Kernel: Map interrupt handlers for all processors 
This doesn't mean that processors will actually handle the irqs
 2024-03-09 23:50:57 +02:00
Bananymous 2420886c2c Kernel: Move current and idle thread to Processor 2024-03-08 23:39:29 +02:00
Bananymous e636dce919 Kernel: Rewrite scheduler thread lists 
Scheduler now has its own data SchedulerQueue which holds active nad
blocking thread lists. This removes need for BAN/Errors.h and making
current thread separate element instead of iterator into linked list.
This makes it possible to have current_thread on each processor
instead of a global one in Scheduler.
 2024-03-08 22:13:45 +02:00
Bananymous 1a1f9b1cf2 Kernel: Fix {read,write}_gs_sized input operands to work always 2024-03-08 22:12:33 +02:00
Bananymous 23a2f8b903 Kernel: Cleanup multiprocessor startup by removing magic numbers 2024-03-07 17:01:17 +02:00
Bananymous 29fd682672 Kernel: Store current processor pointer in IA32_GS_BASE 
This allows easier access to processors fields
 2024-03-07 16:05:29 +02:00
Bananymous 6234a5bc0b Kernel: Move multiprocessor initialize after framebuffer is created 
This allows getting output before multiprocessor is started.
 2024-03-06 16:00:19 +02:00
Bananymous 54f64e7618 Kernel: Move current page table to Processor 
APs can now map kernel page table and print current time!
 2024-03-06 02:19:59 +02:00
Bananymous f0105cb7fb Kernel: Move Interruptable from InterruptController.h to its own file 2024-03-06 00:47:02 +02:00
Bananymous 76b0f80169 Kernel: Move IDT to Processor 2024-03-06 00:45:54 +02:00
Bananymous f84df175ce Kernel: Save BSB id 2024-03-06 00:36:09 +02:00
Bananymous 58aca68726 Kernel: Move GDT to Processor 2024-03-06 00:35:45 +02:00
Bananymous 8670364f44 BAN: Remove unnecessary include from Array.h 2024-03-06 00:01:06 +02:00
Bananymous 418bc54f2b Kernel: Move SpinLock definition to header and fix Scheduler locking 
This patch allows inlining of spinlocks :)
 2024-03-04 22:36:41 +02:00
Bananymous 9c36d7c338 BAN/Kernel: Rework assertion/panic system 
BAN/Assert.h does not need any includes meaning it can be included
anywhere without problems.
 2024-03-04 11:41:54 +02:00
Bananymous 8141b9977d Kernel: Per processor information is now stored in class Processor 
This allows us to allocate processor stacks, and other per processor
structures dynamically in runtime. Giving processor stack to
ap_trampoline feels super hacky, but it works for now.
 2024-03-03 22:30:06 +02:00
Bananymous c035d3c82c Kernel: Start all processors on kernel boot 
Processors don't do anything, except print hello message and halt.
 2024-03-03 02:19:43 +02:00
Bananymous 1de9daa40f Kernel: Move interrupt status stuff to Processor.h 
SpinLocks are now locked with processor id instead of thread id. This
allows having multiple processors running while scheduler is not yet
activated.
 2024-03-03 01:47:22 +02:00
Bananymous a667d88f93 Kernel: Remove now obsolete CriticalScope 
All critical scopes in kernel are now replaced by SpinLocks. This
allows proper locking in actual multiprocessing with multiple cores.
 2024-03-01 15:51:02 +02:00