Commit Graph

1888 Commits

Author SHA1 Message Date
Bananymous bb061d2a0a Kernel: Make 32bit not use large pages during boot
There is no guarantee that they are supported
2024-04-18 13:33:15 +03:00
Bananymous 061012a268 Kernel: Fix signal trampoline
32 bit did not even support it and 64 bit did not align stack
2024-04-18 13:32:40 +03:00
Bananymous a698f91db4 Kernel: Fix PriorityMutex::try_lock()
Forgot to check this when I updated Mutex::try_lock()
2024-04-18 01:36:15 +03:00
Bananymous 30d12a76bc Kernel: Fix 32 bit compilation 2024-04-18 01:35:56 +03:00
Bananymous 687fa44eff Kernel: Add support for ACPI general purpose events 2024-04-17 21:51:03 +03:00
Bananymous aefb33efff Kernel: Implement dummy AML NotifyOp 2024-04-17 15:40:11 +03:00
Bananymous da0c45b7ee Kernel: Cleanup AML debug dump output 2024-04-17 15:35:42 +03:00
Bananymous 956335e844 Kernel: Implement AML WhileOp 2024-04-17 15:00:14 +03:00
Bananymous 701fc600cd Kernel: Implement evaluate and store for BankFieldElement 2024-04-17 14:59:51 +03:00
Bananymous e38b2cff4f Kernel: Implement proper synchronization for AML opregions 2024-04-17 14:59:26 +03:00
Bananymous b268293402 Kernel: Fix Buffer evaluate and store for sizes >= byte
All reads and writes were to the first byte. This patch adds the
correct offset for reading and writing.
2024-04-17 14:57:13 +03:00
Bananymous 45b9dc8be9 Kernel: Make ACPI \\_OSI return true for Linux 2024-04-17 02:19:35 +03:00
Bananymous 0ad7025a17 Kernel: Actually map FACS (and global lock) 2024-04-17 02:14:56 +03:00
Bananymous 49b7467840 Kernel: Simplify AML method invocation API 2024-04-17 01:20:58 +03:00
Bananymous a40ef610a2 Kernel: Allow demand paging only for userspace threads 2024-04-17 01:16:43 +03:00
Bananymous f9943b60e4 Kernel: Fix mutex try_lock return value
WHY IS GCC NOT COMPLAINING FROM HEADERS... I used almost 2 hours
trying to locate why AML was broken
2024-04-17 01:16:43 +03:00
Bananymous f97fb1b35d Kernel: Evaluate _REG on devices for embedded controller if needed 2024-04-17 01:16:43 +03:00
Bananymous b959181afd Kernel: Remove ACPI namespace from itself
This removes unnecessary cyclic reference
2024-04-17 00:52:05 +03:00
Bananymous cbc27a94ac Kernel: AML cleanup IfElse code 2024-04-17 00:49:07 +03:00
Bananymous 6a4f999b88 Kernel: Cleanup AML code and add evaluate for string 2024-04-16 17:39:16 +03:00
Bananymous 7707e01352 Kernel: AML add flag to force absolute lookup for ACPI namespace 2024-04-16 17:38:23 +03:00
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 090a294017 BAN: Add {little,big}_endian_to_host
These just call host_to_{little,big}_endian but are more verbose
and cleaner.
2024-04-09 01:13:28 +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