Changes in kernel/generic/src/ddi/ddi.c [3f5b4e0d:7a0359b] in mainline

File:

• kernel/generic/src/ddi/ddi.c (modified) (1 diff)

kernel/generic/src/ddi/ddi.c

@@ -258 +258 @@
 }
 
-/** Disable or enable specified interrupts.
- * 
- * @param irq the interrupt to be enabled/disabled.
- * @param enable if true enable the interrupt, disable otherwise.
- * 
- * @retutn Zero on success, error code otherwise.
- */
-unative_t sys_interrupt_enable(int irq, int enable)
-{
-/* FIXME: this needs to be generic code, or better not be in kernel at all. */
-#if 0
-        cap_t task_cap = cap_get(TASK);
-        if (!(task_cap & CAP_IRQ_REG))
+/** Disable or enable preemption.
+ *
+ * @param enable If non-zero, the preemption counter will be decremented,
+ *               leading to potential enabling of preemption. Otherwise
+ *               the preemption counter will be incremented, preventing
+ *               preemption from occurring.
+ *
+ * @return Zero on success or EPERM if callers capabilities are not sufficient.
+ *
+ */
+unative_t sys_preempt_control(int enable)
+{
+        if (!(cap_get(TASK) & CAP_PREEMPT_CONTROL))
                 return EPERM;
-                
-        if (irq < 0 || irq > 16) {
-                return EINVAL;
-        }
-        
-        uint16_t irq_mask = (uint16_t)(1 << irq);
-        if (enable) {
-                trap_virtual_enable_irqs(irq_mask);
-        } else {
-                trap_virtual_disable_irqs(irq_mask);
-        }
-        
-#endif
+        
+        if (enable)
+                preemption_enable();
+        else
+                preemption_disable();
+        
         return 0;
 }