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mm: make physical allocation blocking (WIP)

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Loïc Grégoire
2026-06-29 22:33:43 -04:00
parent 11c858c5e8
commit 85e6a8fec9
11 changed files with 160 additions and 72 deletions
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src/proc/thread.zig
+5 -3
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@@ -11,6 +11,7 @@ const mm = r.mm;
const kernel_thread_stack_size = r.kib(16);
var reaper_item: ex.WorkItem = undefined;
var thread_zone: mm.zone.TypedZone(Thread) = undefined;
/// Higher-level wrapper over a thread.
pub const Thread = struct {
@@ -28,7 +29,7 @@ fn reap_thread(obj: *anyopaque, _: ?*anyopaque) void {
psp.turnstile_zone.destroy(td.kern.turnstile);
mm.heap.free(td.kern.stack, kernel_thread_stack_size);
mm.zone.gpa.destroy(td);
thread_zone.destroy(td);
}
fn reaper_fn(_: ?*anyopaque) void {
@@ -40,6 +41,7 @@ fn activation(_: *rtl.HandoffList) void {
}
pub fn init() void {
thread_zone.init("thread", .{});
ke.thread.reaper_list.* = .init(activation);
reaper_item.init(.High, reaper_fn, null);
}
@@ -49,8 +51,8 @@ pub fn init() void {
/// - `entry`: entry point.
/// - `arg`: argument passed to `entry`.
pub fn create_kernel(prio: u8, entry: *const fn (arg: ?*anyopaque) void, arg: ?*anyopaque) !*Thread {
var td = try mm.zone.gpa.create(Thread);
const stack = try mm.heap.alloc(kernel_thread_stack_size);
var td = try thread_zone.create();
const stack = try mm.heap.alloc(kernel_thread_stack_size, .WaitForMemory);
td.kern.init(@intFromPtr(stack), kernel_thread_stack_size, prio, entry, arg);
td.kern.turnstile = try psp.turnstile_zone.create();