From e90b72ec3082588b296956730bd2930cf8d5d671 Mon Sep 17 00:00:00 2001
From: Richard Qin <richard.qin.x@gmail.com>
Date: Fri, 10 Jul 2026 11:31:46 +0800
Subject: refactor: promote new architecture to repository root

Archive the deprecated implementation under lume-legacy, make the new kernel the default root-level build, and update repository entry points without changing kernel behavior.
---
 na/kernel/timer.cc | 118 -----------------------------------------------------
 1 file changed, 118 deletions(-)
 delete mode 100644 na/kernel/timer.cc

(limited to 'na/kernel/timer.cc')

diff --git a/na/kernel/timer.cc b/na/kernel/timer.cc
deleted file mode 100644
index 3cf03cf..0000000
--- a/na/kernel/timer.cc
+++ /dev/null
@@ -1,118 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/* Copyright (C) 2026 Richard Qin */
-
-#include <lume/timer.h>
-#include <lume/fdt.h>
-#include <lume/sched.h>
-#include <arch/cpu.h>
-#include <arch/sbi.h>
-
-#include <kernel/sync/spinlock.h>
-
-uint64 g_jiffies = 0;
-static uint64 g_timer_freq = 10000000;
-static uint64 g_tick_interval = 0;
-
-static list_node g_timer_list;
-static Spinlock g_timer_lock;
-
-
-void add_timer(TimerList* timer) {
-    LockGuard guard(g_timer_lock);
-    
-    list_node* pos;
-    list_for_each(pos, &g_timer_list) {
-        TimerList* t = list_entry<TimerList, &TimerList::entry>(pos);
-        if (t->expires > timer->expires) {
-            break;
-        }
-    }
-    
-    timer->entry.prev = pos->prev;
-    timer->entry.next = pos;
-    pos->prev->next = &timer->entry;
-    pos->prev = &timer->entry;
-}
-
-int del_timer(TimerList* timer) {
-    LockGuard guard(g_timer_lock);
-    if (timer->entry.next != nullptr && timer->entry.next != &timer->entry) {
-        timer->entry.prev->next = timer->entry.next;
-        timer->entry.next->prev = timer->entry.prev;
-        timer->entry.init();
-        return 1;
-    }
-    return 0;
-}
-
-int mod_timer(TimerList* timer, uint64 expires) {
-    int ret = del_timer(timer);
-    timer->expires = expires;
-    add_timer(timer);
-    return ret;
-}
-
-static void run_timers() {
-    g_timer_lock.acquire();
-    
-    while (!g_timer_list.is_empty()) {
-        TimerList* t = list_entry<TimerList, &TimerList::entry>(g_timer_list.next);
-        if (t->expires > g_jiffies) {
-            break;
-        }
-        
-        t->entry.prev->next = t->entry.next;
-        t->entry.next->prev = t->entry.prev;
-        t->entry.init();
-        
-        g_timer_lock.release();
-        t->function(t);
-        g_timer_lock.acquire();
-    }
-    
-    g_timer_lock.release();
-}
-
-static void timer_set_next() {
-    arch::sbi::set_timer(arch::cpu::read_time() + g_tick_interval);
-}
-
-void timer_init() {
-    DeviceNode* cpus = fdt_get_node_by_path("/cpus");
-    if (cpus) {
-        g_timer_freq = cpus->get_prop_u32("timebase-frequency", g_timer_freq);
-    }
-    
-    // Default 100 Hz (10ms per tick)
-    g_tick_interval = g_timer_freq / 100;
-    
-    g_timer_lock.init("timer_list");
-    g_timer_list.init();
-    
-    timer_set_next();
-
-    arch::cpu::timer_intr_on();
-}
-
-
-void timer_init_ap() {
-    timer_set_next();
-    arch::cpu::timer_intr_on();
-}
-
-extern "C" uint32 bsp_hart_id;
-
-void timer_tick() {
-    if (arch::cpu::id() == bsp_hart_id) {
-        g_jiffies++;
-        run_timers();
-    }
-
-    timer_set_next();
-    sched_tick();
-}
-
-
-uint64 timer_get_freq() {
-    return g_timer_freq;
-}
-- 
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