ps: initial process subsystem

src/kern/init.zig

@@ -14,8 +14,9 @@ pub fn init(boot_info: *pl.BootInfo) linksection(r.init) void {
     std.log.info("Welcome to the machine", .{});
     pl.early_init(boot_info);
     ki.cpu.init_cpu(0);
+    ki.turnstile.init_turnstiles();
 
-    thread0.init(@intFromPtr(&stack), r.kib(16), ki.sched.idle, null);
+    thread0.init(@intFromPtr(&stack), r.kib(16), ke.Thread.Priority.idle, ki.sched.idle, null);
     thread0.priority = 0;
     thread0.base_priority = 0;
     thread0.pinned = true;

src/kern/thread.zig

@@ -111,15 +111,16 @@ pub const Thread = struct {
     /// Initialize a thread.
     /// - `stack`: Address of the **base** of the stack on which the initial context for the thread is built
     /// - `stack_size`: Size of the stack
+    /// - `prio`: Base priority of the thread
     /// - `entry`: Entry point of the thread
     /// - `arg`: Extraneous argument to be passed to `entry`
-    pub fn init(thread: *Thread, stack: r.VAddr, stack_size: usize, entry: *const fn (?*anyopaque) void, arg: ?*anyopaque) void {
+    pub fn init(thread: *Thread, stack: r.VAddr, stack_size: usize, prio: u8, entry: *const fn (?*anyopaque) void, arg: ?*anyopaque) void {
         thread.* = .{
             .context = .init(stack, stack_size, entry, arg),
             .lock = .init(),
             .nice = 0,
-            .priority = Thread.Priority.default,
-            .base_priority = Thread.Priority.default,
+            .priority = prio,
+            .base_priority = prio,
             .inherited_prio = 0,
             .sleep_start = 0,
             .sleep_time = 0,