spin_lock_* macro

git-svn-id: svn://kolibrios.org@3395 a494cfbc-eb01-0410-851d-a64ba20cac60
2013-03-19 21:45:05 +00:00 · 2013-03-19 21:45:05 +00:00 · 2bf2a6cd80
commit 2bf2a6cd80
parent 817b73c24b
1 changed files with 20 additions and 0 deletions
--- a/kernel/trunk/const.inc
+++ b/kernel/trunk/const.inc
@ -579,6 +579,26 @@ struct  PCIDEV
        bus             db ?
 ends

+; The following macro assume that we are on uniprocessor machine.
+; Serious work is needed for multiprocessor machines.
+macro spin_lock_irqsave spinlock
+{
+        pushf
+        cli
+}
+macro spin_unlock_irqrestore spinlock
+{
+        popf
+}
+macro spin_lock_irq spinlock
+{
+        cli
+}
+macro spin_unlock_irq spinlock
+{
+        sti
+}
+
 struct  MEM_STATE
        mutex           MUTEX
        smallmap        dd ?