linux-kernel - Re: [patch 5/5] powerpc 2.6.21-rt1] fix clocksource

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>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <yyilkfr95l6.wl@toshiba.co.jp>
Date:	Mon, 14 May 2007 17:23:17 +0900
From:	Tsutomu OWA <tsutomu.owa@...hiba.co.jp>
To:	linuxppc-dev@...abs.org, linux-kernel@...r.kernel.org
Cc:	mingo@...e.hu, tglx@...utronix.de
Subject: Re: [patch 5/5] powerpc 2.6.21-rt1] fix clocksource_timebase.shift value


Calculate clocksource_timebase.shift from tb_ticks_per_jiffy to get an
accurate translation, though I don't understand why current version of 
clocksource_timebase.shift could be constant...

Signed-off-by: Tsutomu OWA <tsutomu.owa@...hiba.co.jp>
-- owa

--- linux-2.6.21-rt1/arch/powerpc/kernel/time.c	2007-05-09 18:05:57.000000000 +0900
+++ rt/arch/powerpc/kernel/time.c	2007-05-09 18:06:24.000000000 +0900
@@ -945,6 +945,9 @@ static int __init init_timebase_clocksou
 	if (__USE_RTC())
 		return -ENODEV;
 
+#ifdef CONFIG_PPC64
+	clocksource_timebase.shift = tb_ticks_per_jiffy / 1000000;
+#endif
 	clocksource_timebase.mult = clocksource_hz2mult(tb_ticks_per_sec,
 					clocksource_timebase.shift);
 	return clocksource_register(&clocksource_timebase);

-
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/