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refactor: remove ke.Cpu struct

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Loïc Grégoire
2026-03-30 17:45:49 -04:00
parent 84500e2ff3
commit faf76ca485
15 changed files with 221 additions and 261 deletions
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src/kern/um/impl.zig
+8 -13
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@@ -4,13 +4,6 @@ const c = b.pl.impl.c;
const ke = b.ke;
const ki = ke.private;
pub const Cpu = struct { pthread: c.pthread_t };
/// Return the current CPU.
pub fn curcpu() *ke.Cpu {
return b.pl.impl.my_cpu;
}
fn set_signals(enabled: bool) bool {
var newmask: c.sigset_t = undefined;
var oldmask: c.sigset_t = undefined;
@@ -26,10 +19,12 @@ fn set_signals(enabled: bool) bool {
return c.sigismember(&oldmask, c.SIGUSR1) == 0;
}
threadlocal var hard_ipl: ke.Ipl = .Passive;
/// Set the hardware IPL.
pub fn set_hardware_ipl(ipl: ke.Ipl) void {
// This is a no-op since we handle this in enable_interrupts().
_ = ipl;
hard_ipl = ipl;
}
/// Disable interrupts and return the previous state.
@@ -39,18 +34,18 @@ pub fn disable_interrupts() bool {
/// Enable interrupts and return the previous state.
pub fn enable_interrupts() bool {
const ipl_allows_ints = @intFromEnum(ke.curcpu().ipl) <= @intFromEnum(ke.Ipl.get_max_software());
const ipl_allows_ints = @intFromEnum(hard_ipl) <= @intFromEnum(ke.Ipl.get_max_software());
return set_signals(ipl_allows_ints);
}
/// Restore an interrupt state.
pub fn restore_interrupts(val: bool) void {
const ipl_allows_ints = @intFromEnum(ke.curcpu().ipl) <= @intFromEnum(ke.Ipl.get_max_software());
const ipl_allows_ints = @intFromEnum(hard_ipl) <= @intFromEnum(ke.Ipl.get_max_software());
_ = set_signals(val and ipl_allows_ints);
}
pub fn send_resched_ipi(cpu: *ke.Cpu) void {
_ = c.pthread_kill(cpu.impl.pthread, c.SIGUSR1);
pub fn send_resched_ipi(cpu: u32) void {
_ = c.pthread_kill(b.pl.impl.percpu.remote(cpu).pthread, c.SIGUSR1);
}
pub const ThreadContext = struct {
@@ -109,5 +104,5 @@ pub inline fn percpu_ptr_other(variable: anytype, cpu_id: usize) @TypeOf(variabl
}
pub inline fn percpu_ptr(variable: anytype) @TypeOf(variable) {
return @ptrFromInt(@intFromPtr(variable) +% b.pl.impl.cpu_offsets[b.pl.impl.my_cpu.id]);
return @ptrFromInt(@intFromPtr(variable) +% b.pl.impl.cpu_offsets[b.pl.impl.my_cpu_id]);
}