Changeset 1120276 in mainline for arch/sparc64/src/drivers/tick.c

Timestamp:

2005-12-27T12:03:29Z (20 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

7614565

Parents:

39494010

Message:

sparc64 work.
Tick interrupt support.

File:

• arch/sparc64/src/drivers/tick.c (modified) (2 diffs)

arch/sparc64/src/drivers/tick.c

@@ -32 +32 @@
 #include <arch/register.h>
 #include <debug.h>
-#include <print.h>
+#include <time/clock.h>
 
+/** Initialize tick interrupt. */
 void tick_init(void)
 {
@@ -45 +46 @@
 }
 
+/** Process tick interrupt.
+ *
+ * @param n Interrupt Level, 14,  (can be ignored)
+ * @param stack Stack pointer of the interrupted context.
+ */
 void tick_interrupt(int n, void *stack)
 {
-        panic("Unserviced %s.\n", __FUNCTION__);
+        softint_reg_t softint, clear;
+        
+        softint.value = softint_read();
+        
+        /*
+         * Make sure we are servicing interrupt_level_14
+         */
+        ASSERT(n == 14);
+        
+        /*
+         * Make sure we are servicing TICK_INT.
+         */
+        ASSERT(softint.tick_int);
+
+        /*
+         * Clear tick interrupt.
+         */
+        clear.value = 0;
+        clear.tick_int = 1;
+        clear_softint_write(clear.value);
+        
+        /*
+         * Restart counter.
+         */
+        tick_write(0);
+        
+        clock();
 }