From: john stultz <johnstul@us.ibm.com>
To: lkml <linux-kernel@vger.kernel.org>
Cc: George Anzinger <george@mvista.com>,
Ulrich Windl <ulrich.windl@rz.uni-regensburg.de>,
Christoph Lameter <clameter@sgi.com>,
frank@tuxrocks.com, benh@kernel.crashing.org,
Nishanth Aravamudan <nacc@us.ibm.com>
Subject: [PATCH 2/7] new timeofday i386 arch specific changes, part 1 (v. B4)
Date: Fri, 15 Jul 2005 20:26:16 -0700 [thread overview]
Message-ID: <1121484376.28999.4.camel@cog.beaverton.ibm.com> (raw)
In-Reply-To: <1121484326.28999.3.camel@cog.beaverton.ibm.com>
All,
The conversion of i386 to use the new timeofday subsystem has been
split into 4 parts. This patch, the first of four, is just a simple
cleanup for the i386 arch in preperation of moving the the new timeofday
infrastructure. It simply moves some code from timer_pit.c to i8259.c.
It applies on top of my timeofday-core patch. This patch is part the
timeofday-arch-i386 patchset, so without the following parts it is not
expected to compile (although just this one should).
thanks
-john
linux-2.6.13-rc3_timeofday-arch-i386-part1_B4.patch
============================================
diff --git a/arch/i386/kernel/i8259.c b/arch/i386/kernel/i8259.c
--- a/arch/i386/kernel/i8259.c
+++ b/arch/i386/kernel/i8259.c
@@ -24,6 +24,7 @@
#include <asm/apic.h>
#include <asm/arch_hooks.h>
#include <asm/i8259.h>
+#include <asm/i8253.h>
#include <linux/irq.h>
@@ -399,6 +400,45 @@ void __init init_ISA_irqs (void)
}
}
+void setup_pit_timer(void)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&i8253_lock, flags);
+ outb_p(0x34,PIT_MODE); /* binary, mode 2, LSB/MSB, ch 0 */
+ udelay(10);
+ outb_p(LATCH & 0xff , PIT_CH0); /* LSB */
+ udelay(10);
+ outb(LATCH >> 8 , PIT_CH0); /* MSB */
+ spin_unlock_irqrestore(&i8253_lock, flags);
+}
+
+static int timer_resume(struct sys_device *dev)
+{
+ setup_pit_timer();
+ return 0;
+}
+
+static struct sysdev_class timer_sysclass = {
+ set_kset_name("timer_pit"),
+ .resume = timer_resume,
+};
+
+static struct sys_device device_timer = {
+ .id = 0,
+ .cls = &timer_sysclass,
+};
+
+static int __init init_timer_sysfs(void)
+{
+ int error = sysdev_class_register(&timer_sysclass);
+ if (!error)
+ error = sysdev_register(&device_timer);
+ return error;
+}
+
+device_initcall(init_timer_sysfs);
+
void __init init_IRQ(void)
{
int i;
diff --git a/arch/i386/kernel/timers/timer_pit.c b/arch/i386/kernel/timers/timer_pit.c
--- a/arch/i386/kernel/timers/timer_pit.c
+++ b/arch/i386/kernel/timers/timer_pit.c
@@ -162,43 +162,3 @@ struct init_timer_opts __initdata timer_
.init = init_pit,
.opts = &timer_pit,
};
-
-void setup_pit_timer(void)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&i8253_lock, flags);
- outb_p(0x34,PIT_MODE); /* binary, mode 2, LSB/MSB, ch 0 */
- udelay(10);
- outb_p(LATCH & 0xff , PIT_CH0); /* LSB */
- udelay(10);
- outb(LATCH >> 8 , PIT_CH0); /* MSB */
- spin_unlock_irqrestore(&i8253_lock, flags);
-}
-
-static int timer_resume(struct sys_device *dev)
-{
- setup_pit_timer();
- return 0;
-}
-
-static struct sysdev_class timer_sysclass = {
- set_kset_name("timer_pit"),
- .resume = timer_resume,
-};
-
-static struct sys_device device_timer = {
- .id = 0,
- .cls = &timer_sysclass,
-};
-
-static int __init init_timer_sysfs(void)
-{
- int error = sysdev_class_register(&timer_sysclass);
- if (!error)
- error = sysdev_register(&device_timer);
- return error;
-}
-
-device_initcall(init_timer_sysfs);
-
next prev parent reply other threads:[~2005-07-16 3:29 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-16 3:25 [RFC][PATCH 1/6] new timeofday core subsystem john stultz
2005-07-16 3:26 ` john stultz [this message]
2005-07-16 3:27 ` [RFC][PATCH 3/6] new timeofday i386 arch specific changes, part 2 (v. B4) john stultz
2005-07-16 3:28 ` [RFC][PATCH 4/6] new timeofday i386 arch specific changes, part 3 (v.B4) john stultz
2005-07-16 3:29 ` [RFC][PATCH 5/6] new timeofday i386 arch specific changes, part 4 (v. B4) john stultz
2005-07-16 3:30 ` [RFC][PATCH 6/6] new timeofday i386 specific timesources john stultz
2005-07-16 3:31 ` [PATCH 2/7] new timeofday i386 arch specific changes, part 1 (v. B4) john stultz
2005-07-16 8:32 ` [RFC][PATCH 1/6] new timeofday core subsystem Frank Sorenson
2005-07-16 16:44 ` Nishanth Aravamudan
2005-07-22 8:08 ` New timeofday subsystem: Lockups Frank Sorenson
2005-07-22 15:09 ` john stultz
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1121484376.28999.4.camel@cog.beaverton.ibm.com \
--to=johnstul@us.ibm.com \
--cc=benh@kernel.crashing.org \
--cc=clameter@sgi.com \
--cc=frank@tuxrocks.com \
--cc=george@mvista.com \
--cc=linux-kernel@vger.kernel.org \
--cc=nacc@us.ibm.com \
--cc=ulrich.windl@rz.uni-regensburg.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®