linux-kernel - [M68KNOMMU 06/06]: use common hardware routines in common timer code

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Thu, 26 Jul 2007 00:06:25 +1000
From:	Greg Ungerer <gerg@...pgear.com>
To:	linux-kernel@...r.kernel.org
Cc:	gerg@...inux.org
Subject: [M68KNOMMU 06/06]: use common hardware routines in common timer code

Modify the common m68knommu timer code to use the common hardware
timer functions. This removes all use of the miscellaneous function
pointers used previously for the hardware timer support routines.

Signed-off-by: Greg Ungerer <gerg@...inux.org>
---


diff -Naur linux-2.6.22/arch/m68knommu/kernel/time.c linux-2.6.22-uc0/arch/m68knommu/kernel/time.c
--- linux-2.6.22/arch/m68knommu/kernel/time.c	2007-07-12 15:23:02.000000000 +1000
+++ linux-2.6.22-uc0/arch/m68knommu/kernel/time.c	2007-07-12 15:27:00.000000000 +1000
@@ -27,7 +27,6 @@
 
 #define	TICK_SIZE (tick_nsec / 1000)
 
-
 static inline int set_rtc_mmss(unsigned long nowtime)
 {
 	if (mach_set_clock_mmss)
@@ -39,15 +38,11 @@
  * timer_interrupt() needs to keep up the real-time clock,
  * as well as call the "do_timer()" routine every clocktick
  */
-static irqreturn_t timer_interrupt(int irq, void *dummy)
+irqreturn_t arch_timer_interrupt(int irq, void *dummy)
 {
 	/* last time the cmos clock got updated */
 	static long last_rtc_update=0;
 
-	/* may need to kick the hardware timer */
-	if (mach_tick)
-	  mach_tick();
-
 	write_seqlock(&xtime_lock);
 
 	do_timer(1);
@@ -103,10 +98,10 @@
 {
 	unsigned int year, mon, day, hour, min, sec;
 
-	extern void arch_gettod(int *year, int *mon, int *day, int *hour,
-				int *min, int *sec);
-
-	arch_gettod(&year, &mon, &day, &hour, &min, &sec);
+	if (mach_gettod)
+		mach_gettod(&year, &mon, &day, &hour, &min, &sec);
+	else
+		year = mon = day = hour = min = sec = 0;
 
 	if ((year += 1900) < 1970)
 		year += 100;
@@ -114,7 +109,7 @@
 	xtime.tv_nsec = 0;
 	wall_to_monotonic.tv_sec = -xtime.tv_sec;
 
-	mach_sched_init(timer_interrupt);
+	hw_timer_init();
 }
 
 /*
@@ -128,7 +123,7 @@
 
 	do {
 		seq = read_seqbegin_irqsave(&xtime_lock, flags);
-		usec = mach_gettimeoffset ? mach_gettimeoffset() : 0;
+		usec = hw_timer_offset();
 		sec = xtime.tv_sec;
 		usec += (xtime.tv_nsec / 1000);
 	} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
@@ -160,8 +155,7 @@
 	 * Discover what correction gettimeofday
 	 * would have done, and then undo it!
 	 */
-	if (mach_gettimeoffset)
-		nsec -= (mach_gettimeoffset() * 1000);
+	nsec -= (hw_timer_offset() * 1000);
 
 	wtm_sec  = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
 	wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/