使用内核线程来刷新屏幕 (#57)

* 修改了test-idr的错误

* new: 修复切换双缓冲的时候的卡顿问题

Signed-off-by: guanjinquan <1666320330@qq.com>
Co-authored-by: guanjinquan <1666320330@qq.com>
Co-authored-by: fslongjin <longjin@RinGoTek.cn>

kernel/main.c

@@ -165,7 +165,7 @@ void system_initialize()
 
     process_init();
     // 启用double buffer
-    scm_enable_double_buffer();
+    // scm_enable_double_buffer();  // 因为时序问题, 该函数调用被移到 initial_kernel_thread
     io_mfence();
 
     // fat32_init();