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3 dayskernel/amd64: isa: Add initial i8237 driver implIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
4 dayskernel/amd64: bus: Add bus resource interfaceIan Moffett
This commit introduces a bus resource abstraction. A bus resource encapsulates bus specific information and semantics. Along with abstracting away bus specific details and providing an overall smoother interface, this additionally provides flexibility, access control and security by keeping track of permissions and allowing things to be turned on or off. Signed-off-by: Ian Moffett <ian@osmora.org>
5 dayskernel: ahci: Add necessary AHCI related headersIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
5 dayskernel: param: Add bit MASK() macroIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
7 daysproject: Update copyright date to 2025Ian Moffett
Was supposed to happen on Jan 1, sorry! Happy late new year! Signed-off-by: Ian Moffett <ian@osmora.org>
9 dayskernel: pci: Optimize PCI bus scanningQuinn Stephens
Uses recursive bus/bridge scanning, skips nonexistent devices, and only scans for multiple functions on multifunction devices. This may result in PCI scanning being up to 100x as fast. Signed-off-by: Quinn Stephens <quinn@osmora.org> Signed-off-by: Ian Moffett <ian@osmora.org>
2025-01-27kernel: pci: Add missing pci_msix_eoi() prototypeIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2025-01-27kernel: param: Add IN_RANGE macroIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2025-01-08kernel: xhci: Add TRB definitionsIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2025-01-08kernel: xhci: Add xHC interrupt managementIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-12-20kernel/amd64: backtrace() -> md_backtrace()Ian Moffett
Maintain naming consistency between public machine-dependent and machine-independent functions. Signed-off-by: Ian Moffett <ian@osmora.org>
2024-12-20kernel: xhci: Add initial xhci/usb3 driver implIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-12-20kernel: param: Add ptr helpersIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-12-20kernel/amd64: Add panic backtraceIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-12-20kernel: cdefs: Add __weak macroIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-12-17kernel/amd64: pci: Allow mapping of 64 bit BARsIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-12-16kernel: synch: Move spinlock_usleep()Ian Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-12-15kernel: vm: Add objects, page struct and pagersIan Moffett
This commit expands the virtual memory subsystem by providing the initial implementation of virtual memory objects, pager descriptors and pagers. This change currently implemenents a minimal vnode pager. Signed-off-by: Ian Moffett <ian@osmora.org>
2024-12-15kernel: synch: Add spinlock with timeoutIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-12-15kernel: lib: Add atoi()Ian Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-12-15kernel: Add __nothing def to cdefs.hIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-12-15kernel: Add __unused attribute to cdefs.hIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-12-15kernel: Add offsetof in cdefs.hIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-12-15kernel: Add tree.h and tree_subr.c portIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-12-07kernel: vcache: Add impl of "local" vcachesIan Moffett
This commit implements local vcaches and lazy vcache migration (LZVM) for on the fly vcache type switching. Signed-off-by: Ian Moffett <ian@osmora.org>
2024-12-07kernel: vcache: Improve vcache add/pull interfaceIan Moffett
Require internal add/pull routines to be passed a pointer to the vcache to be operated on. This makes it easier to support for per-process vcaches and LZVM. Signed-off-by: Ian Moffett <ian@osmora.org>
2024-11-13kernel: vfs: Add vnode cache implementationIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-11-12kernel: syscall: Add SYS_sysctl syscallIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-11-11kernel: sysctl: Add initial sysctl implementationIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-11-04kernel: descrip: Add support for fd duplicationIan Moffett
Sometimes we may need to duplicate a file descriptor and create a new fdno that refers to the same vnode. The fd_dup() function enables us to do this when needed. Signed-off-by: Ian Moffett <ian@osmora.org>
2024-10-29kernel: syscall: Add SYS_statIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-10-29kernel: types: Add more POSIX typesIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-10-29kernel: types: Move dev_t to sys/types.hIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-10-27kernel: syscall: Fix brace formattingIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-09-09kernel: vfs: Refactor fd related codeIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-09-03kernel: dev: Introduce DCDR frameworkIan Moffett
Added the Drive Cache Descriptor Ring (DCDR) framework to manage the caching of logical blocks for LBA-based storage mediums. This commit implements core components including data structures for Drive Cache Descriptors (DCDs) and Drive Cache Descriptor Rings (DCDRs). Other implemented features include: - DCD eviction policy based on least hit count - DCD invalidation - DCD lookups - Support for logical block coalescing Signed-off-by: Ian Moffett <ian@osmora.org>
2024-08-21kernel: vfs: Add sys_close()Ian Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-08-21kernel: Add ref count to filedescIan Moffett
Keep track of how many threads are currently using the file descriptor. This will be useful when fork() is implemented. Signed-off-by: Ian Moffett <ian@osmora.org>
2024-08-12kernel: Add initial support for signalsIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-07-29kernel/amd64: msr: Add IA32_GS_BASE MSR defineIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-07-29kernel/amd64: Use only defines + handle err codesIan Moffett
- Use only defines in frame.h - Improve handling of trap error codes Signed-off-by: Ian Moffett <ian@osmora.org>
2024-07-29kernel/amd64: Facilitate IA32_FS_BASE reads/writesIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-07-24kernel: device: Add read/write stubsIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-07-24kernel: device: Add write operationIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-07-22kernel: sched: Implement MLFQAptRock327
Implements the Multilevel Feedback Queue scheduling algorithm. Signed-off-by: AptRock327 <dominik032009@gmail.com> Signed-off-by: Ian Moffett <ian@osmora.org>
2024-07-22kernel: vfs_syscalls: Add sys_read()Ian Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-07-22sysheaders: limits: Add SSIZE_MAXIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-07-22kernel: vfs_syscalls: Add sys_open()Ian Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-07-22sysheaders: Add sys/fcntl.hIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
2024-07-22sysheaders: Add sys/limits.hIan Moffett
Signed-off-by: Ian Moffett <ian@osmora.org>
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