5bf7ca1c80 
								
							 
						 
						
							
							
								
								Kernel: Allocators are now stored in UniqPtr  
							
							... 
							
							
							
							This allows proper memory management, we had some memory leak 
							
						 
						
							2023-06-04 01:25:57 +03:00  
				
					
						
							
							
								 
						
							
								1b1f22c35e 
								
							 
						 
						
							
							
								
								Kernel: make load_elf() its own function  
							
							
							
						 
						
							2023-06-04 01:24:11 +03:00  
				
					
						
							
							
								 
						
							
								479817231a 
								
							 
						 
						
							
							
								
								Kernel: PhysicalRange maps its nodes to kernel vaddr space  
							
							... 
							
							
							
							This keeps the lower half of address space cleaner 
							
						 
						
							2023-06-04 01:20:47 +03:00  
				
					
						
							
							
								 
						
							
								b403155ca9 
								
							 
						 
						
							
							
								
								Kernel: You can specify first vaddr for getting free pages  
							
							
							
						 
						
							2023-06-04 01:15:48 +03:00  
				
					
						
							
							
								 
						
							
								5f339d585c 
								
							 
						 
						
							
							
								
								Kernel: PAGE_FLAG_MASK is now only 0xF  
							
							... 
							
							
							
							We don't care currenly about anything but the last few bits 
							
						 
						
							2023-06-03 20:08:13 +03:00  
				
					
						
							
							
								 
						
							
								b168462b43 
								
							 
						 
						
							
							
								
								Kernel: PageTable now has debug_dump  
							
							... 
							
							
							
							This dumps all the mapped pages and their flags 
							
						 
						
							2023-06-03 20:08:13 +03:00  
				
					
						
							
							
								 
						
							
								9228df0f23 
								
							 
						 
						
							
							
								
								Kernel: Inode/Device detection is done with overridden bool functions  
							
							
							
						 
						
							2023-06-03 13:28:15 +03:00  
				
					
						
							
							
								 
						
							
								813d0f1b5f 
								
							 
						 
						
							
							
								
								Kernel: add basic disk cache  
							
							... 
							
							
							
							ATADevices now add disk cache to themselves 
							
						 
						
							2023-06-03 02:23:14 +03:00  
				
					
						
							
							
								 
						
							
								2b901abfb1 
								
							 
						 
						
							
							
								
								Kernel: Shell 'memory' now prints heap memory usage  
							
							
							
						 
						
							2023-06-03 02:22:18 +03:00  
				
					
						
							
							
								 
						
							
								7bbdee6cc4 
								
							 
						 
						
							
							
								
								Kernel: Symlinks are now working  
							
							... 
							
							
							
							We still have to implement loop or depth detection 
							
						 
						
							2023-06-02 11:43:46 +03:00  
				
					
						
							
							
								 
						
							
								835d32814d 
								
							 
						 
						
							
							
								
								Kernel: add basic support for symlinks  
							
							
							
						 
						
							2023-06-01 00:24:45 +03:00  
				
					
						
							
							
								 
						
							
								b48b239882 
								
							 
						 
						
							
							
								
								Kernel: Implement Process::exec()  
							
							
							
						 
						
							2023-05-31 20:56:29 +03:00  
				
					
						
							
							
								 
						
							
								5fb69300ca 
								
							 
						 
						
							
							
								
								Kernel: Move userspace entry functions to Process instead of Thread  
							
							
							
						 
						
							2023-05-31 19:31:10 +03:00  
				
					
						
							
							
								 
						
							
								67886b0c5a 
								
							 
						 
						
							
							
								
								Kernel: Move V2P and P2V to Memory/Types.h  
							
							
							
						 
						
							2023-05-30 23:57:03 +03:00  
				
					
						
							
							
								 
						
							
								81cf389754 
								
							 
						 
						
							
							
								
								Kernel: Booting with higher half kernel gets to Heap initialization  
							
							
							
						 
						
							2023-05-30 22:21:12 +03:00  
				
					
						
							
							
								 
						
							
								5bb1f2a48c 
								
							 
						 
						
							
							
								
								Kernel: Rename MMU to PageTable  
							
							... 
							
							
							
							This is more descriptive name for what it actually represents 
							
						 
						
							2023-05-29 21:06:09 +03:00  
				
					
						
							
							
								 
						
							
								fb17af4844 
								
							 
						 
						
							
							
								
								Kernel/LibC: opening standard files is done in libc  
							
							
							
						 
						
							2023-05-29 20:21:19 +03:00  
				
					
						
							
							
								 
						
							
								ff83f967d8 
								
							 
						 
						
							
							
								
								Kernel: Make RecursiveSpinLock thread safe  
							
							... 
							
							
							
							also SpinLock is now implemented with gcc builtins 
							
						 
						
							2023-05-29 19:38:09 +03:00  
				
					
						
							
							
								 
						
							
								09666adc53 
								
							 
						 
						
							
							
								
								Kernel: fork() now copies allocations through FixedWidthAllocator  
							
							
							
						 
						
							2023-05-28 21:34:35 +03:00  
				
					
						
							
							
								 
						
							
								ec73db0057 
								
							 
						 
						
							
							
								
								Kernel: Move page macros to Types.h  
							
							
							
						 
						
							2023-05-28 21:03:08 +03:00  
				
					
						
							
							
								 
						
							
								833642d405 
								
							 
						 
						
							
							
								
								Kernel: ISR will now crash userspace process instead of panicing kernel  
							
							
							
						 
						
							2023-05-28 20:53:10 +03:00  
				
					
						
							
							
								 
						
							
								f04399c3a0 
								
							 
						 
						
							
							
								
								Kernel: fork() now copies allocation done through GeneralAllocator  
							
							
							
						 
						
							2023-05-28 20:37:39 +03:00  
				
					
						
							
							
								 
						
							
								f2d767b799 
								
							 
						 
						
							
							
								
								Kernel: Add bareboness fork() function  
							
							
							
						 
						
							2023-05-28 18:08:49 +03:00  
				
					
						
							
							
								 
						
							
								3e93dae53c 
								
							 
						 
						
							
							
								
								Kernel: Add invalidate() to MMU  
							
							
							
						 
						
							2023-05-28 18:05:49 +03:00  
				
					
						
							
							
								 
						
							
								b021d3eebd 
								
							 
						 
						
							
							
								
								Kernel: Processes and Threads use VirtualRange memory allocations  
							
							
							
						 
						
							2023-05-28 17:48:34 +03:00  
				
					
						
							
							
								 
						
							
								15842db83e 
								
							 
						 
						
							
							
								
								Kernel: Move PhysicalRange to its own file and add VirtualRange  
							
							
							
						 
						
							2023-05-28 17:48:34 +03:00  
				
					
						
							
							
								 
						
							
								869de7283f 
								
							 
						 
						
							
							
								
								Kernel: MMU::get() is now MMU::kernel  
							
							... 
							
							
							
							MMU is can now be locked with RecursiveSpinLock.
Scheduler now has get_current_tid() that works before the Scheduler
is initialized. This allows RecursiveSpinLock usage early on. 
							
						 
						
							2023-05-28 16:18:18 +03:00  
				
					
						
							
							
								 
						
							
								faf14b880e 
								
							 
						 
						
							
							
								
								LibC: Rewrite all the headers.  
							
							... 
							
							
							
							We now have more or less posix issue 2018 conforming libc headers.
This was a really time consuming and boring operation but it had to
be done.
Now we get to actually start implementing libc :) 
							
						 
						
							2023-05-26 22:31:21 +03:00  
				
					
						
							
							
								 
						
							
								1658e925f2 
								
							 
						 
						
							
							
								
								Kernel: Add bareboness possibility to set termios  
							
							
							
						 
						
							2023-05-26 22:31:21 +03:00  
				
					
						
							
							
								 
						
							
								80d9f6131b 
								
							 
						 
						
							
							
								
								Kernel/LibC: move file offset back to kernel  
							
							... 
							
							
							
							This makes keeping track of offsets easier and more proper 
							
						 
						
							2023-05-26 22:31:21 +03:00  
				
					
						
							
							
								 
						
							
								e0a72defa2 
								
							 
						 
						
							
							
								
								Kernel: Add argc and argv to process entry  
							
							
							
						 
						
							2023-05-16 00:27:49 +03:00  
				
					
						
							
							
								 
						
							
								e0a7e242f8 
								
							 
						 
						
							
							
								
								Kernel: Add MMUScope  
							
							... 
							
							
							
							This disables interrupts and loads specified mmu for the
scope it lives in 
							
						 
						
							2023-05-16 00:26:39 +03:00  
				
					
						
							
							
								 
						
							
								6acb86c14b 
								
							 
						 
						
							
							
								
								Kernel: MMU keeps track of the current  
							
							
							
						 
						
							2023-05-16 00:26:39 +03:00  
				
					
						
							
							
								 
						
							
								729ff267d7 
								
							 
						 
						
							
							
								
								LibC: add function declarations to sys/stat.h  
							
							
							
						 
						
							2023-05-11 15:11:33 +03:00  
				
					
						
							
							
								 
						
							
								ff2e2937a5 
								
							 
						 
						
							
							
								
								Kernel: Remove offset from OpenFileDescriptor  
							
							... 
							
							
							
							This is now handled on the libc side. There might be reasons to
have it in kernel side, but for simplicity's sake I'm moving it
to libc for now :) 
							
						 
						
							2023-05-09 20:31:22 +03:00  
				
					
						
							
							
								 
						
							
								512be884ed 
								
							 
						 
						
							
							
								
								Kernel: Add barebones GeneralAllocator for >4096B  
							
							
							
						 
						
							2023-05-08 22:10:49 +03:00  
				
					
						
							
							
								 
						
							
								f1667b398a 
								
							 
						 
						
							
							
								
								Kernel: FixedWidthAllocator operates on MMU  
							
							... 
							
							
							
							Instead of Process* we use MMU& in FixedWidthAllocator since it is
everything it actually needs :) 
							
						 
						
							2023-05-08 00:06:56 +03:00  
				
					
						
							
							
								 
						
							
								b0ec0f1a1a 
								
							 
						 
						
							
							
								
								Kernel: We add FixedWidthAllocators on demand  
							
							... 
							
							
							
							On SYS_ALLOC we will add a new FixedWidthAllocator if the old ones
are already full or we don't have one with proper size. This allows
arbitary number of allocations as long as you have enough memory
available :)
Next I will be writing a general allocator for allocations larger
than 4096 bytes which should make SYS_ALLOC syscall complete :) 
							
						 
						
							2023-05-07 23:57:01 +03:00  
				
					
						
							
							
								 
						
							
								12e42f40c5 
								
							 
						 
						
							
							
								
								Kernel/LibC: add free function for FixedWidthAllocator  
							
							... 
							
							
							
							I have to rework the syscall API and allocators in process. For
now this works well enough :) 
							
						 
						
							2023-05-07 01:21:50 +03:00  
				
					
						
							
							
								 
						
							
								bcfd838131 
								
							 
						 
						
							
							
								
								Kernel: Add basic fixed width allocator for userspace  
							
							... 
							
							
							
							We have to move process stacks to the general heap and maybe map
kernel to higher half. 
							
						 
						
							2023-05-06 19:58:08 +03:00  
				
					
						
							
							
								 
						
							
								9c07add00f 
								
							 
						 
						
							
							
								
								Kernel: Invalid physical addresses from heap are specified now by 0  
							
							
							
						 
						
							2023-05-06 17:34:22 +03:00  
				
					
						
							
							
								 
						
							
								f36b94d039 
								
							 
						 
						
							
							
								
								Kernel: MMU can now provide info about virtual address space  
							
							
							
						 
						
							2023-05-06 17:34:22 +03:00  
				
					
						
							
							
								 
						
							
								e7a170c89f 
								
							 
						 
						
							
							
								
								Kernel: 64 bit MMU now properly identity maps kernel  
							
							
							
						 
						
							2023-05-05 14:19:28 +03:00  
				
					
						
							
							
								 
						
							
								55bb0084aa 
								
							 
						 
						
							
							
								
								Kernel: namespace and function renames  
							
							... 
							
							
							
							MMU moved to namespace kernel
Kernel::Memory::Heap moved to just Kernel
MMU::map_{page,range} renamed to identity_map_{page,range}
Add MMU::get_page_flags 
							
						 
						
							2023-04-28 14:48:38 +03:00  
				
					
						
							
							
								 
						
							
								dc0f8b383f 
								
							 
						 
						
							
							
								
								Kernel: Usespace threads now have an interrupt stack  
							
							
							
						 
						
							2023-04-25 14:49:18 +03:00  
				
					
						
							
							
								 
						
							
								f1a0625b61 
								
							 
						 
						
							
							
								
								Kernel: TSS stack can be set after initialization  
							
							
							
						 
						
							2023-04-25 14:48:12 +03:00  
				
					
						
							
							
								 
						
							
								02b961fd7e 
								
							 
						 
						
							
							
								
								Kernel: Stack pointer out of bounds now panics with a message  
							
							
							
						 
						
							2023-04-25 13:40:55 +03:00  
				
					
						
							
							
								 
						
							
								cd74b2167d 
								
							 
						 
						
							
							
								
								LibC: Write mostly functioning stdio  
							
							
							
						 
						
							2023-04-23 14:32:37 +03:00  
				
					
						
							
							
								 
						
							
								792fad2a03 
								
							 
						 
						
							
							
								
								Kernel: d{print,warn,error}ln(...) now has a spinlock  
							
							
							
						 
						
							2023-04-22 17:58:51 +03:00  
				
					
						
							
							
								 
						
							
								cc04990ce3 
								
							 
						 
						
							
							
								
								Kernel: Process now frees up its pages on destruction  
							
							
							
						 
						
							2023-04-22 16:54:46 +03:00  
				
					
						
							
							
								 
						
							
								7530482cc2 
								
							 
						 
						
							
							
								
								Kernel: Cleanup process creation for userspace  
							
							
							
						 
						
							2023-04-22 16:51:50 +03:00  
				
					
						
							
							
								 
						
							
								fadce063a7 
								
							 
						 
						
							
							
								
								Kernel: Usespace programs are now ran through ELF files  
							
							... 
							
							
							
							only 64 bit elf files are supported for now. 
							
						 
						
							2023-04-22 15:35:32 +03:00  
				
					
						
							
							
								 
						
							
								9c506ef85b 
								
							 
						 
						
							
							
								
								Kernel: Stack pointer is validated when updated  
							
							... 
							
							
							
							This allows us not to fail stack pointer when in syscall since
interrupts use their own stack 
							
						 
						
							2023-04-21 10:40:24 +03:00  
				
					
						
							
							
								 
						
							
								b1c7af38d0 
								
							 
						 
						
							
							
								
								Kernel: Add barebones per process virtual addresses  
							
							... 
							
							
							
							We now assign every (userspace) process its own MMU which we load
in scheduler. This allows every process to have separate virtual
address space.
This is very hackish implementations but it works for now 
							
						 
						
							2023-04-20 00:45:41 +03:00  
				
					
						
							
							
								 
						
							
								ea0c9b639f 
								
							 
						 
						
							
							
								
								Kernel: Add some bareboness functionality to map virtual addresses  
							
							
							
						 
						
							2023-04-19 23:51:36 +03:00  
				
					
						
							
							
								 
						
							
								0030f035be 
								
							 
						 
						
							
							
								
								Kernel: Rename MMU::{un,}allocate... to MMU::{un,}map  
							
							... 
							
							
							
							This is more appropriate name for the behaviour :D 
							
						 
						
							2023-04-19 21:50:30 +03:00  
				
					
						
							
							
								 
						
							
								e8a0df54b1 
								
							 
						 
						
							
							
								
								Kernel: ATAController will fail to initialize in native mode  
							
							
							
						 
						
							2023-04-19 17:29:36 +03:00  
				
					
						
							
							
								 
						
							
								33393335c8 
								
							 
						 
						
							
							
								
								Kernel: PCI devices now report their prog_if  
							
							
							
						 
						
							2023-04-19 16:43:05 +03:00  
				
					
						
							
							
								 
						
							
								a9a15ea2c0 
								
							 
						 
						
							
							
								
								Kernel: init2 is now launched as a process instead of thread  
							
							... 
							
							
							
							Also only process can now add threads to scheduler. Nobody should
have raw access to scheduler and everything should be through
Process::current() or irqs (reschedules) 
							
						 
						
							2023-04-19 00:39:06 +03:00  
				
					
						
							
							
								 
						
							
								d63716db96 
								
							 
						 
						
							
							
								
								Kernel: Process is not reference counted any more  
							
							... 
							
							
							
							This was not necessary and it made things needlessly complicated 
							
						 
						
							2023-04-19 00:34:18 +03:00  
				
					
						
							
							
								 
						
							
								96ac072166 
								
							 
						 
						
							
							
								
								Kernel: Heap allows us to take free pages.  
							
							... 
							
							
							
							The API is kinda weird and will probably be reworked in near future
but this will work for now :) 
							
						 
						
							2023-04-18 10:18:15 +03:00  
				
					
						
							
							
								 
						
							
								295a27f16a 
								
							 
						 
						
							
							
								
								Kernel: Panic wont print stacktrace if it has already paniced  
							
							... 
							
							
							
							This prevents stack trace dump to panic and loop 
							
						 
						
							2023-04-18 10:18:15 +03:00  
				
					
						
							
							
								 
						
							
								88f60b5e41 
								
							 
						 
						
							
							
								
								Kernel: Map all ACPI tables on initialization  
							
							... 
							
							
							
							This makes their usage much easier and less error prone
They won't mapped be processes when we get to there, so this won't be
a problem 
							
						 
						
							2023-04-18 10:18:15 +03:00  
				
					
						
							
							
								 
						
							
								c5347e6707 
								
							 
						 
						
							
							
								
								Kernel: Reorder boot initialization  
							
							... 
							
							
							
							We now create the TTY as soon as possible so we can show console
output without serial port. 
							
						 
						
							2023-04-18 10:18:15 +03:00  
				
					
						
							
							
								 
						
							
								bf0c7b9ae8 
								
							 
						 
						
							
							
								
								Kernel: Heap implementation can now give free pages from all of RAM  
							
							
							
						 
						
							2023-04-18 10:18:15 +03:00  
				
					
						
							
							
								 
						
							
								633929629c 
								
							 
						 
						
							
							
								
								Kernel: Start working on heap  
							
							
							
						 
						
							2023-04-18 10:18:15 +03:00  
				
					
						
							
							
								 
						
							
								fdb4eb6042 
								
							 
						 
						
							
							
								
								Kernel: Move kmalloc and MMU to Memory directory  
							
							
							
						 
						
							2023-04-18 10:18:15 +03:00  
				
					
						
							
							
								 
						
							
								8ee63f8264 
								
							 
						 
						
							
							
								
								Kernel: We can create basic userspace processes  
							
							... 
							
							
							
							These are still allocated on the kernel memory 
							
						 
						
							2023-04-12 17:52:36 +03:00  
				
					
						
							
							
								 
						
							
								34358b8471 
								
							 
						 
						
							
							
								
								Kernel: Scheduler can now terminate processes threads  
							
							
							
						 
						
							2023-04-12 17:49:04 +03:00  
				
					
						
							
							
								 
						
							
								3201c3654e 
								
							 
						 
						
							
							
								
								Kernel: Threads now use only 4 KiB stack :)  
							
							
							
						 
						
							2023-04-12 00:22:08 +03:00  
				
					
						
							
							
								 
						
							
								5810a77cbf 
								
							 
						 
						
							
							
								
								Kernel: Mark Scheduler::start() as noreturn as appropriate  
							
							
							
						 
						
							2023-04-11 23:33:20 +03:00  
				
					
						
							
							
								 
						
							
								aa2aee684b 
								
							 
						 
						
							
							
								
								Kernel: remove message from BAN::Error  
							
							... 
							
							
							
							We don't store the error message anymore in BAN::Error.
Instead we store a error code that can be mapped into a string.
This allows BAN::Error to only take 4 bytes instead of 128.
We should also make some kernel initialization just panic instead
of returning errors since they are required for succesfull boot
anyway. 
							
						 
						
							2023-04-11 23:25:21 +03:00  
				
					
						
							
							
								 
						
							
								cfa025acae 
								
							 
						 
						
							
							
								
								BAN: Move RefPtr to its own file and create New.h  
							
							... 
							
							
							
							New.h contains definitions for placement new operators and
BAN::allocator and BAN::dealloctor 
							
						 
						
							2023-04-10 21:07:25 +03:00  
				
					
						
							
							
								 
						
							
								f924ac9265 
								
							 
						 
						
							
							
								
								Kernel: Threads can now be terminated mid execution  
							
							
							
						 
						
							2023-04-10 21:07:25 +03:00  
				
					
						
							
							
								 
						
							
								f281543255 
								
							 
						 
						
							
							
								
								Kernel: Add tty to process and make termios modifiable  
							
							
							
						 
						
							2023-04-05 02:53:28 +03:00  
				
					
						
							
							
								 
						
							
								4f522d337a 
								
							 
						 
						
							
							
								
								Kernel: Add partial support for shell  
							
							... 
							
							
							
							We don't handle arrow keys, and the tty does not know how to clear
the screeen :D 
							
						 
						
							2023-04-05 01:30:58 +03:00  
				
					
						
							
							
								 
						
							
								af0979ec32 
								
							 
						 
						
							
							
								
								Kernel: Process can now initialize stdio  
							
							... 
							
							
							
							This allows the use of the fds STD{IN,OUT,ERR}_FILENO 
							
						 
						
							2023-04-05 01:10:25 +03:00  
				
					
						
							
							
								 
						
							
								7f95444bb5 
								
							 
						 
						
							
							
								
								Kernel: Start work on making tty a file  
							
							... 
							
							
							
							TTY is now a file that you can read from/write to. I still have
to port shell to use this new interface 
							
						 
						
							2023-04-05 00:56:09 +03:00  
				
					
						
							
							
								 
						
							
								783842bac2 
								
							 
						 
						
							
							
								
								Kernel: add virtual write function to inode  
							
							
							
						 
						
							2023-04-03 20:29:07 +03:00  
				
					
						
							
							
								 
						
							
								ee1f3623ce 
								
							 
						 
						
							
							
								
								Kernel: Fix typo  
							
							
							
						 
						
							2023-04-03 19:56:55 +03:00  
				
					
						
							
							
								 
						
							
								b87dae7e7c 
								
							 
						 
						
							
							
								
								Kernel: Device dev and rdev number is done more properly  
							
							... 
							
							
							
							Also hd* partitions are now 1 indexed instead of 0 
							
						 
						
							2023-04-03 11:43:16 +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  
				
					
						
							
							
								 
						
							
								46d65471d9 
								
							 
						 
						
							
							
								
								Kernel: ATA now uses irqs instead of polling  
							
							... 
							
							
							
							Reading is now much slower at ~500 kB/s it was around 3 MB/s.
This is probably mostly due semaphore blocking taking atleast
until next reschedule (1 ms itervals). This will be a problem
as long as we are using only single processor.
I could try to use {READ/WRITE}_MULTIPLE commands, but since
most of the disk reads are 2 sectors (inode block size) this
will at most double the speed.
Most efficient speed up would of course be caching disk access
data and inodes overall. 
							
						 
						
							2023-04-03 00:03:38 +03:00  
				
					
						
							
							
								 
						
							
								dcc174b62e 
								
							 
						 
						
							
							
								
								Kernel: Move ATADevice to its own file from ATAController  
							
							... 
							
							
							
							The API is kinda weird since device reads/writes go from
ATADevice -> ATAController -> ATADevice
but this is for now atleast necessary since ATAController has(?)
to keep all devices from using the disks at the same time 
							
						 
						
							2023-04-02 18:26:19 +03:00  
				
					
						
							
							
								 
						
							
								cbb0f6be9a 
								
							 
						 
						
							
							
								
								Kernel: cleanup includes  
							
							... 
							
							
							
							I went quickly went through all files since I found some weird
includes :D 
							
						 
						
							2023-04-01 02:14:49 +03:00  
				
					
						
							
							
								 
						
							
								a60f8098ee 
								
							 
						 
						
							
							
								
								Kernel: Fix traversing back from mount points  
							
							
							
						 
						
							2023-04-01 01:54:35 +03:00  
				
					
						
							
							
								 
						
							
								8b5d8d9f8a 
								
							 
						 
						
							
							
								
								Kernel: Process gets absolute paths for mount  
							
							
							
						 
						
							2023-04-01 00:30:11 +03:00  
				
					
						
							
							
								 
						
							
								db65cfeb8a 
								
							 
						 
						
							
							
								
								Kernel: Cleanup ATA device initialization  
							
							
							
						 
						
							2023-03-31 00:58:57 +03:00  
				
					
						
							
							
								 
						
							
								a3ba6da6f3 
								
							 
						 
						
							
							
								
								Kernel: Move DeviceManager to its own file  
							
							
							
						 
						
							2023-03-30 22:39:45 +03:00  
				
					
						
							
							
								 
						
							
								b048630e5b 
								
							 
						 
						
							
							
								
								Kernel: Improve locking in Process, VFS and ATAController  
							
							... 
							
							
							
							We used to block on all process access. This meant that shell
reading the keyboard input would block all VFS access making disk
accesses practically impossible. We now block only when it is
necessary :) 
							
						 
						
							2023-03-30 22:02:16 +03:00  
				
					
						
							
							
								 
						
							
								dcee92a6bc 
								
							 
						 
						
							
							
								
								Kernel: Thread is no longer RefCounted  
							
							... 
							
							
							
							This makes developement with Scheduler much easier against compiler
optimizations. I could now remove the pragma GCC optimize stuff. 
							
						 
						
							2023-03-30 19:16:51 +03:00  
				
					
						
							
							
								 
						
							
								c2e3b422cc 
								
							 
						 
						
							
							
								
								Kernel: Add Semaphore to block threads  
							
							
							
						 
						
							2023-03-30 18:46:33 +03:00  
				
					
						
							
							
								 
						
							
								d4c03d3939 
								
							 
						 
						
							
							
								
								Kernel: root partition is now passed from the commandline  
							
							
							
						 
						
							2023-03-30 18:46:19 +03:00  
				
					
						
							
							
								 
						
							
								8e68d2e3ea 
								
							 
						 
						
							
							
								
								Kernel: Shell can now mount partitions  
							
							
							
						 
						
							2023-03-30 15:06:41 +03:00  
				
					
						
							
							
								 
						
							
								30c33b55e3 
								
							 
						 
						
							
							
								
								Kernel: Inode::Mode is now a struct so we can have functions in it  
							
							
							
						 
						
							2023-03-30 14:41:15 +03:00  
				
					
						
							
							
								 
						
							
								e2791e5260 
								
							 
						 
						
							
							
								
								Kernel: StorageDevices and Controllers are now devices  
							
							
							
						 
						
							2023-03-30 14:22:15 +03:00  
				
					
						
							
							
								 
						
							
								88a8bd659d 
								
							 
						 
						
							
							
								
								Kernel: Add IFBLK, IFLNK, IFSOCK to Inode::Mode  
							
							
							
						 
						
							2023-03-30 13:15:46 +03:00  
				
					
						
							
							
								 
						
							
								f9cc114907 
								
							 
						 
						
							
							
								
								Kernel: All devices have atime, mtime, ctime at their creation  
							
							
							
						 
						
							2023-03-30 13:15:46 +03:00  
				
					
						
							
							
								 
						
							
								9a4d603a62 
								
							 
						 
						
							
							
								
								Kernel: Remove the mount test from VFS  
							
							
							
						 
						
							2023-03-30 11:43:24 +03:00  
				
					
						
							
							
								 
						
							
								78ea4b2207 
								
							 
						 
						
							
							
								
								Kernel: fix stat command and device numbers  
							
							
							
						 
						
							2023-03-30 10:43:08 +03:00  
				
					
						
							
							
								 
						
							
								ab3cdea548 
								
							 
						 
						
							
							
								
								Kernel: Rewrite mounting code  
							
							
							
						 
						
							2023-03-29 21:34:48 +03:00  
				
					
						
							
							
								 
						
							
								dd84a2175f 
								
							 
						 
						
							
							
								
								Kernel: Move Partition out of StorageDevice and rename functions  
							
							
							
						 
						
							2023-03-29 13:23:01 +03:00  
				
					
						
							
							
								 
						
							
								62fb233eb1 
								
							 
						 
						
							
							
								
								Kernel: DeviceManager is now a 'FileSystem' so it can expose devices  
							
							... 
							
							
							
							Shell reads keyboard through /dev/input :) 
							
						 
						
							2023-03-29 11:50:46 +03:00  
				
					
						
							
							
								 
						
							
								16d9d29971 
								
							 
						 
						
							
							
								
								Kernel: Remove obsolete KeyboardLayout/  
							
							... 
							
							
							
							This was used by the old input system. Currently keyboard layout is
hardcoded to finnish. But it will be reworked as something read from
the filesystem 
							
						 
						
							2023-03-29 03:09:14 +03:00  
				
					
						
							
							
								 
						
							
								fa8e921ee8 
								
							 
						 
						
							
							
								
								Kernel: Rework the whole input system  
							
							... 
							
							
							
							We now use Device abstraction that will allow us to provide devices
to userspace through /dev. Currently Shell reads from first and only
device (it being PS/2 Keyboard). 
							
						 
						
							2023-03-29 03:05:16 +03:00  
				
					
						
							
							
								 
						
							
								c7286396d8 
								
							 
						 
						
							
							
								
								Kernel: Move ACPI to its own file  
							
							
							
						 
						
							2023-03-27 17:30:45 +03:00  
				
					
						
							
							
								 
						
							
								666051fd34 
								
							 
						 
						
							
							
								
								Kernel/BAN: move unix time conversion to BAN and add stat to Shell  
							
							
							
						 
						
							2023-03-27 00:49:58 +03:00  
				
					
						
							
							
								 
						
							
								e55860eb6b 
								
							 
						 
						
							
							
								
								Kernel: Rework processes and VFS so we don't expose inodes  
							
							... 
							
							
							
							Everything is now done through a file descriptor. 
							
						 
						
							2023-03-26 04:30:57 +03:00  
				
					
						
							
							
								 
						
							
								1fade1aa9e 
								
							 
						 
						
							
							
								
								Kernel: Process::working_directory() is now thread safe  
							
							... 
							
							
							
							I realized you cannot return a stirng view and it to be thread safe 
							
						 
						
							2023-03-24 01:46:25 +02:00  
				
					
						
							
							
								 
						
							
								814f0b215d 
								
							 
						 
						
							
							
								
								Kernel: Create RecursiveSpinLock and add it to Process  
							
							... 
							
							
							
							We now lock every function within Proccess, just to be sure.
Recursive lock allows us to use lock from the same thread even if
we already have the spinlock locked 
							
						 
						
							2023-03-24 01:32:35 +02:00  
				
					
						
							
							
								 
						
							
								5fd26b4ea8 
								
							 
						 
						
							
							
								
								Kernel: Lock process functions instead of the ata controller  
							
							... 
							
							
							
							Process has to use locks at least on some functions so multithreaded
disk io is safe. This seemed to fix corrupted reads from disk 
							
						 
						
							2023-03-24 01:17:39 +02:00  
				
					
						
							
							
								 
						
							
								e5eab8bae4 
								
							 
						 
						
							
							
								
								Kernel: Ext2FS now does allocations better  
							
							... 
							
							
							
							We only have to allocate at the beginning of the all functions and
can properly exit before any disk reads if we run out of memory.
This makes development little bit 'harder' since the {read,write}_block
user must allocate a buffer of atleast block_size bytes.
I also made disk access to cause kernel panic on error since the error
handling during file write is something I don't want to think now.
The filesystem can easily corrupt so, I feel like when disk io starts
to fail I'll come back to this. 
							
						 
						
							2023-03-23 23:22:31 +02:00  
				
					
						
							
							
								 
						
							
								75c4f35e85 
								
							 
						 
						
							
							
								
								Kernel: Add possibiliity to create empty files on Ext2  
							
							... 
							
							
							
							Big rewrite for Ext2 for more easy and optimized code 
							
						 
						
							2023-03-23 22:26:06 +02:00  
				
					
						
							
							
								 
						
							
								633414bd20 
								
							 
						 
						
							
							
								
								Kernel: Remove block group descriptor cache from ext2fs  
							
							... 
							
							
							
							This will make improving the fs easier since we need to only update
the values on the disk 
							
						 
						
							2023-03-23 18:52:58 +02:00  
				
					
						
							
							
								 
						
							
								7ca6cd61be 
								
							 
						 
						
							
							
								
								Kernel: Move get_unix_time to RTC namespace  
							
							
							
						 
						
							2023-03-23 18:14:51 +02:00  
				
					
						
							
							
								 
						
							
								3ef72e8a7b 
								
							 
						 
						
							
							
								
								BAN: Modify Span constructors to keep constness correctly  
							
							
							
						 
						
							2023-03-23 14:26:03 +02:00  
				
					
						
							
							
								 
						
							
								9b56801c3d 
								
							 
						 
						
							
							
								
								Kernel: StorageDevice and Ext2 "support" writing  
							
							
							
						 
						
							2023-03-23 13:04:13 +02:00  
				
					
						
							
							
								 
						
							
								74949401bd 
								
							 
						 
						
							
							
								
								Kernel: Cleanup GPT parsing code  
							
							
							
						 
						
							2023-03-23 11:13:14 +02:00  
				
					
						
							
							
								 
						
							
								072954480d 
								
							 
						 
						
							
							
								
								Kernel: Remove obsolete Ext2FS::ext2_root_inode()  
							
							... 
							
							
							
							This was not used by anyone and the cast was wrong anyway 
							
						 
						
							2023-03-21 18:19:48 +02:00  
				
					
						
							
							
								 
						
							
								3652d11059 
								
							 
						 
						
							
							
								
								Kernel: Remove for_each_block from Ext2  
							
							
							
						 
						
							2023-03-21 18:14:02 +02:00  
				
					
						
							
							
								 
						
							
								f9ae1f0023 
								
							 
						 
						
							
							
								
								Kernel: Fix PC Screen font parsing  
							
							... 
							
							
							
							I had misread the format and the parsing code was incorrect. I also
changed fonts to store unicode codepoints as 32 bit integers, so
every character can be represented 
							
						 
						
							2023-03-20 14:52:42 +02:00  
				
					
						
							
							
								 
						
							
								896b4c280c 
								
							 
						 
						
							
							
								
								Kernel: Font parsing uses Spans now  
							
							
							
						 
						
							2023-03-20 13:35:54 +02:00  
				
					
						
							
							
								 
						
							
								e4bcd98904 
								
							 
						 
						
							
							
								
								Kernel: Add basic mounting to VFS.  
							
							
							
						 
						
							2023-03-19 05:51:25 +02:00  
				
					
						
							
							
								 
						
							
								3570764448 
								
							 
						 
						
							
							
								
								Kernel: Add comparison operator for inodes  
							
							
							
						 
						
							2023-03-19 03:34:23 +02:00  
				
					
						
							
							
								 
						
							
								8236598f9d 
								
							 
						 
						
							
							
								
								Kernel: Optimize Ext2 disk reads  
							
							... 
							
							
							
							We used to read whole file until we reached the asked offset.
Now we can calculate the appropriate block and read just the asked data. 
							
						 
						
							2023-03-18 03:47:59 +02:00  
				
					
						
							
							
								 
						
							
								1a26a318a4 
								
							 
						 
						
							
							
								
								Kernel: Rework filesystem reading  
							
							... 
							
							
							
							We now read from a filesystem to user provided buffer.
Read sizes are determined by read call.
You should now get file descriptors and do reading through Process::current() 
							
						 
						
							2023-03-17 21:18:41 +02:00  
				
					
						
							
							
								 
						
							
								1f2ceeb329 
								
							 
						 
						
							
							
								
								Kernel: VFS caches currently open inodes  
							
							
							
						 
						
							2023-03-16 15:31:33 +02:00  
				
					
						
							
							
								 
						
							
								1b7625581d 
								
							 
						 
						
							
							
								
								Kernel: Add basic concept of Processes  
							
							... 
							
							
							
							We now create Shell as a process that has its own threads 
							
						 
						
							2023-03-16 12:17:04 +02:00  
				
					
						
							
							
								 
						
							
								8b8e3cbbf0 
								
							 
						 
						
							
							
								
								Kernel/Userspace: Start initial work on userspace and syscalls  
							
							
							
						 
						
							2023-03-13 15:32:46 +02:00  
				
					
						
							
							
								 
						
							
								af854ec9e1 
								
							 
						 
						
							
							
								
								Kernel: Thread creation now takes void(*)() as entry and void* as data  
							
							... 
							
							
							
							This simplifies threading for the future and gets rid of (undefined?)
cast of member function pointer to address 
							
						 
						
							2023-03-09 15:33:42 +02:00  
				
					
						
							
							
								 
						
							
								8940ff8002 
								
							 
						 
						
							
							
								
								Kernel: You don't have to check whether VFS is initialized or not  
							
							... 
							
							
							
							VFS now returns Error when attempting to traverse inodes if it did
not find root partition 
							
						 
						
							2023-03-09 02:31:24 +02:00  
				
					
						
							
							
								 
						
							
								371dfe8ef3 
								
							 
						 
						
							
							
								
								BAN: Formatter now uses perfect forwarding on its arguments  
							
							
							
						 
						
							2023-03-08 21:31:26 +02:00  
				
					
						
							
							
								 
						
							
								7458f68c38 
								
							 
						 
						
							
							
								
								BAN: Error can now be constructed from c_string or format string  
							
							... 
							
							
							
							If the resulting string would overflow, we just truncate it to fit
the error message buffer (128) bytes 
							
						 
						
							2023-03-08 17:05:37 +02:00  
				
					
						
							
							
								 
						
							
								d90aba0963 
								
							 
						 
						
							
							
								
								Kernel: Create CriticalScope and fix kmalloc  
							
							... 
							
							
							
							This disables interrupts for the current scope and restores them
after the scope. This is used in kmalloc, since scheduler might
call into kmalloc/kfree, but deadlock if some thread is currently
trying to allocate. This allows us to use kmalloc in Scheduler. 
							
						 
						
							2023-03-08 13:55:53 +02:00  
				
					
						
							
							
								 
						
							
								a068d828fe 
								
							 
						 
						
							
							
								
								Kernel: ATA reads go through the ata controller and not only device  
							
							
							
						 
						
							2023-03-08 03:26:25 +02:00  
				
					
						
							
							
								 
						
							
								1dabe7a222 
								
							 
						 
						
							
							
								
								Kernel: More rework on Scheduler  
							
							
							
						 
						
							2023-03-08 03:26:25 +02:00  
				
					
						
							
							
								 
						
							
								e7a577f54a 
								
							 
						 
						
							
							
								
								Kernel: fix includes  
							
							
							
						 
						
							2023-03-08 03:26:25 +02:00  
				
					
						
							
							
								 
						
							
								23b3028e15 
								
							 
						 
						
							
							
								
								Kernel: Rename RefCounted -> RefPtr and implement RefCounted  
							
							
							
						 
						
							2023-03-08 03:26:25 +02:00  
				
					
						
							
							
								 
						
							
								f7ebda3bf1 
								
							 
						 
						
							
							
								
								Kernel: Move interrupt related functions to InterruptController  
							
							
							
						 
						
							2023-03-08 03:16:51 +02:00  
				
					
						
							
							
								 
						
							
								b8ee77eb78 
								
							 
						 
						
							
							
								
								Kernel: Initial work on new scheduler with queues  
							
							... 
							
							
							
							Sleeping is definately broken 
							
						 
						
							2023-03-08 02:41:44 +02:00  
				
					
						
							
							
								 
						
							
								a9acf1f6dc 
								
							 
						 
						
							
							
								
								Kernel: PCIDevice is now class with getters and constructor  
							
							
							
						 
						
							2023-03-08 02:41:44 +02:00  
				
					
						
							
							
								 
						
							
								1dd61e93b6 
								
							 
						 
						
							
							
								
								Kernel: Threads cannot take arguments anymore  
							
							
							
						 
						
							2023-03-02 01:56:09 +02:00  
				
					
						
							
							
								 
						
							
								7fcbb869e1 
								
							 
						 
						
							
							
								
								Kernel: Initialize GDT in kernel code  
							
							... 
							
							
							
							We dont use the boot GDT only while booting 
							
						 
						
							2023-03-01 21:21:56 +02:00  
				
					
						
							
							
								 
						
							
								ba8c4dbc7f 
								
							 
						 
						
							
							
								
								Kernel: panic now disables interrupts as the first thing  
							
							
							
						 
						
							2023-03-01 21:21:56 +02:00  
				
					
						
							
							
								 
						
							
								9756de02ef 
								
							 
						 
						
							
							
								
								Kernel: MMU now takes flags when allocating pages  
							
							
							
						 
						
							2023-03-01 21:21:56 +02:00  
				
					
						
							
							
								 
						
							
								7d84f290a1 
								
							 
						 
						
							
							
								
								Kernel: Add lock to Disk reads before I forget  
							
							
							
						 
						
							2023-02-26 03:48:11 +02:00  
				
					
						
							
							
								 
						
							
								ee5d02aa70 
								
							 
						 
						
							
							
								
								Kernel: Rewrite basically all current disk io stuff  
							
							... 
							
							
							
							This is a big commit that was kinda hard to split to smaller ones.
Essentially we now look at all the mass storage devices from PCI
and initialize (P)ATA devices. This doesn't provide any more functionality
but better abstractions and everything doesn't have to be on its old
default port that might be different for modern computers. 
							
						 
						
							2023-02-26 03:00:29 +02:00  
				
					
						
							
							
								 
						
							
								04bb08d27f 
								
							 
						 
						
							
							
								
								Kernel: Add basic PCI enumeration  
							
							
							
						 
						
							2023-02-26 02:56:53 +02:00  
				
					
						
							
							
								 
						
							
								34f9912a1d 
								
							 
						 
						
							
							
								
								Kernel: Add IO functions inl, outl, and ins{b,w,l} to read into buffer  
							
							
							
						 
						
							2023-02-24 12:39:38 +02:00  
				
					
						
							
							
								 
						
							
								390a747768 
								
							 
						 
						
							
							
								
								Kernel: Add prefs font for terminal output before file system  
							
							
							
						 
						
							2023-02-23 01:22:50 +02:00