patch-2.4.23 linux-2.4.23/arch/ia64/sn/kernel/sn2/timer_interrupt.c

• Lines: 61
• Date: 2003-11-28 10:26:19.000000000 -0800
• Orig file: linux-2.4.22/arch/ia64/sn/kernel/sn2/timer_interrupt.c
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.22/arch/ia64/sn/kernel/sn2/timer_interrupt.c linux-2.4.23/arch/ia64/sn/kernel/sn2/timer_interrupt.c
@@ -0,0 +1,60 @@
+/*
+ *
+ *
+ * Copyright (c) 2003 Silicon Graphics, Inc.  All Rights Reserved.
+ * 
+ * This program is free software; you can redistribute it and/or modify it 
+ * under the terms of version 2 of the GNU General Public License 
+ * as published by the Free Software Foundation.
+ * 
+ * This program is distributed in the hope that it would be useful, but 
+ * WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
+ * 
+ * Further, this software is distributed without any warranty that it is 
+ * free of the rightful claim of any third person regarding infringement 
+ * or the like.  Any license provided herein, whether implied or 
+ * otherwise, applies only to this software file.  Patent licenses, if 
+ * any, provided herein do not apply to combinations of this program with 
+ * other software, or any other product whatsoever.
+ * 
+ * You should have received a copy of the GNU General Public 
+ * License along with this program; if not, write the Free Software 
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ * 
+ * Contact information:  Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, 
+ * Mountain View, CA  94043, or:
+ * 
+ * http://www.sgi.com 
+ * 
+ * For further information regarding this notice, see: 
+ * 
+ * http://oss.sgi.com/projects/GenInfo/NoticeExplan
+ */
+
+#include <asm/sn/pda.h>
+#include <asm/sn/leds.h>
+
+extern void sn_lb_int_war_check(void);
+#define SN_LB_INT_WAR_INTERVAL 100
+
+void
+sn_timer_interrupt_extras(void)
+{
+	/* LED blinking */
+	if (!pda.hb_count--) {
+		pda.hb_count = HZ/2;
+		set_led_bits(pda.hb_state ^= LED_CPU_HEARTBEAT, LED_CPU_HEARTBEAT);
+	}
+
+	if (enable_shub_wars_1_1()) {
+		/* Bugfix code for SHUB 1.1 */
+        	if (pda.pio_shub_war_cam_addr)
+                	*pda.pio_shub_war_cam_addr = 0x8000000000000010UL;
+	}
+	if (pda.sn_lb_int_war_ticks == 0)
+		sn_lb_int_war_check();
+	pda.sn_lb_int_war_ticks++;
+	if (pda.sn_lb_int_war_ticks >= SN_LB_INT_WAR_INTERVAL)
+		pda.sn_lb_int_war_ticks = 0;
+}