Commit Graph

128 Commits

Author SHA1 Message Date
Wildan M ea1d915bbc Make wake up optional 2026-04-26 07:15:10 +07:00
Wildan M 0534ab6377 Replace enqueue with dedicated idle contexts 2026-04-26 06:49:55 +07:00
Wildan M de7926e05e Do not push idle context to queue 2026-04-26 06:49:54 +07:00
Wildan M 7adceb6e80 Add idle context 2026-04-26 06:49:54 +07:00
bjorn3 7827cb6c78 Unify context list again now that we have a run queue
This simplifies code and ensures that exiting a context will properly
remove it from the list of contexts.
2026-04-26 06:49:54 +07:00
Wildan M f773d3e50d don't loop from idle to kernel context 2026-04-23 16:40:12 +07:00
Wildan M 8262fa7da9 Don't account idle time 2026-04-23 16:33:15 +07:00
bjorn3 30b967022f Fix a couple of warnings 2026-04-17 20:20:16 +02:00
Akshit Gaur 976756991a Deficit Weighted Round Robin Scheduler 2026-04-17 06:52:03 -06:00
Speedy_Lex ee1260363c Fix many clippy lints 2026-04-08 19:40:41 +01:00
Wildan M 3b5a0e4c60 Apply ordered lock to AddrSpaceWrapper without solving borrow checker 2026-04-01 08:42:18 -06:00
Wildan M 6e0143cf0d Store context to per cpu 2026-03-31 15:29:47 +07:00
Ron Williams fde164b2a0 Revert "Deficit based Weighted Round Robin Scheduler"
This reverts commit b7dabfc3c2.
2026-03-22 18:44:41 +00:00
Akshit Gaur b7dabfc3c2 Deficit based Weighted Round Robin Scheduler 2026-03-22 07:00:31 -06:00
bjorn3 ea847f428f Fix compilation with the debugger feature enabled 2026-03-07 12:19:24 +01:00
auronandace 14b8c2b0c1 enforce two lints and collapse some ifs 2026-03-03 14:51:32 +00:00
Wildan M 3c2b1a11c5 Add ordered lock for time offset mutex 2026-02-25 11:42:17 +07:00
bjorn3 7ff1898765 Fix a couple of warnings 2026-02-06 20:54:42 +01:00
Jeremy Soller 1c850605d0 Only read time once during context switch 2026-01-20 14:18:33 -07:00
Jeremy Soller 81a49d211b Fix potential preempt guard deadlock 2026-01-20 13:58:31 -07:00
Anhad Singh d9eae6bb75 fix(sync/wait_condition): deadlock in WaitCondition::wait
Instead of using a simple switch to determine if preemption is enabled
(`is_preemptable: bool`), a counter is used instead. This handles the
case where a function holding a `PreemptGuard` calls another function
that creates a new `PreemptGuard`.

Signed-off-by: Anhad Singh <andypython@protonmail.com>
2025-12-15 13:05:29 +11:00
Anhad Singh 4ff82ad8b5 fix(scheme/user): deadlocks inside call_extended_inner
Signed-off-by: Anhad Singh <andypython@protonmail.com>
2025-11-27 14:39:14 +11:00
Jeremy Soller 60af085356 Improve cpu stat accuracy 2025-11-03 20:42:08 -07:00
Speedy_Lex 0931a7f49f Resolve a huge portion of the clippy lints 2025-10-06 06:30:23 -06:00
Jeremy Soller 5dc6f7c3ba lock ordering 2025-09-22 07:48:48 -06:00
bjorn3 4884d749af Make PercpuBlock const constructable 2025-09-15 19:00:03 +02:00
bjorn3 61db2b2ad5 Use core::hint::spin_loop() where possible 2025-09-13 18:55:16 +02:00
Jeremy Soller 8a2aa411e2 Explicitly scope all locks, fixing multi_core hangs. Allow contexts on any CPU 2025-09-13 10:10:07 -06:00
bjorn3 cea93f7647 cargo fix --edition & rustfmt
Or to be precise:
RUST_TARGET_PATH=$(pwd)/targets cargo fix --edition \
--target targets/x86_64-unknown-kernel.json \
--target targets/i686-unknown-kernel.json \
--target targets/aarch64-unknown-kernel.json \
--target targets/riscv64-unknown-kernel.json \
-Zbuild-std=core,alloc --allow-dirty --bin kernel
cargo fmt
2025-09-10 16:44:36 +02:00
bjorn3 b5822ac118 Mostly use cfg!() rather than #[cfg] for controlling sys_stat
This only adds 48 bytes overhead per cpu core in the PerCpuBlock struct.
Also fixes compilation with sys_stat enabled on x86_64.
2025-09-07 12:27:04 +02:00
bjorn3 75edd1d34c Fix infinite panicking when panicking during early boot 2025-04-21 16:44:27 +02:00
4lDO2 1d5f8fd46d Move proc code to userspace. 2025-04-19 16:30:42 +02:00
Vincent Berthier 2da88c18c0 Add the sys:stat scheme 2025-02-22 14:27:10 +00:00
Arthur Paulino e19c1404f7 chore: enrich context/switch
* Add documentation and more code comments to `src/context/switch.rs`
* Eliminate a `context.wake.expect(...)` where `context.wake.is_some()`
* Eliminate a TODO item about updating contexts' timestamps in `switch_to`
* Eliminate a dangling `else { continue }` at the end of the loop that iterates
  on contexts
2024-10-31 10:22:21 +00:00
4lDO2 7fbe5c72e9 Use strong references in context set. 2024-07-15 18:08:42 +02:00
4lDO2 80fe891c6e WIP: Replace ContextId with direct Arcs. 2024-07-15 18:08:42 +02:00
4lDO2 89d1d49a4e Fix most code except proc scheme. 2024-07-15 18:08:41 +02:00
4lDO2 8f452b0b0f WIP: continue the process transition 2024-07-15 18:08:41 +02:00
4lDO2 0da2fce64a Separate context and process IDs. 2024-07-15 18:08:41 +02:00
4lDO2 d94baa2712 Run rustfmt. 2024-07-15 17:50:18 +02:00
4lDO2 5e7db80285 Fix a bunch of warnings. 2024-07-15 17:48:45 +02:00
4lDO2 d70ad544e6 Fix SIGKILL and allow SYS_EXIT to pass 16 bits. 2024-07-15 17:20:57 +02:00
4lDO2 ae8e13525f Remove is_pending flag, read word directly instead. 2024-07-15 17:20:57 +02:00
4lDO2 cc406804c0 Don't double-clear is_pending flag. 2024-07-15 17:20:55 +02:00
4lDO2 55fe58adf6 WIP: implement kill syscall prototype 2024-07-15 17:20:55 +02:00
4lDO2 295cc820e6 WIP: userspace signal handling 2024-07-15 17:20:55 +02:00
4lDO2 66eb3361d3 Use saved regs instead of costly context.syscall. 2024-03-19 11:33:55 +01:00
4lDO2 4862977fa5 Optimize syscall fast path without tracing. 2024-03-18 20:38:11 +01:00
4lDO2 4a3dc2dadd Fix the SIGKILL fd leak bug. 2024-03-16 17:49:32 +01:00
4lDO2 776a140212 Fix rax being overwritten, and compile on i686. 2024-03-16 17:49:31 +01:00