The patch titled
i386: PIT stop only, when in periodic or oneshot mode
has been removed from the -mm tree. Its filename was
i386-pit-stop-only-when-in-periodic-or-oneshot-mode.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: i386: PIT stop only, when in periodic or oneshot mode
From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
The patch is necessary on one of my boxen, where programming the stop
sequence twice leads to PIT malfunction.
Sigh !
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/i386/kernel/i8253.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff -puN arch/i386/kernel/i8253.c~i386-pit-stop-only-when-in-periodic-or-oneshot-mode arch/i386/kernel/i8253.c
--- a/arch/i386/kernel/i8253.c~i386-pit-stop-only-when-in-periodic-or-oneshot-mode
+++ a/arch/i386/kernel/i8253.c
@@ -47,9 +47,12 @@ static void init_pit_timer(enum clock_ev
case CLOCK_EVT_MODE_SHUTDOWN:
case CLOCK_EVT_MODE_UNUSED:
- outb_p(0x30, PIT_MODE);
- outb_p(0, PIT_CH0); /* LSB */
- outb_p(0, PIT_CH0); /* MSB */
+ if (evt->mode == CLOCK_EVT_MODE_PERIODIC ||
+ evt->mode == CLOCK_EVT_MODE_ONESHOT) {
+ outb_p(0x30, PIT_MODE);
+ outb_p(0, PIT_CH0);
+ outb_p(0, PIT_CH0);
+ }
break;
case CLOCK_EVT_MODE_ONESHOT:
_
Patches currently in -mm which might be from tglx@xxxxxxxxxxxxx are
git-acpi.patch
acpi-move-timer-broadcast-and-pmtimer-access-before-c3-arbiter-shutdown.patch
nohz-fix-nohz-x86-dyntick-idle-handling.patch
acpi-remove-the-useless-ifdef-code.patch
x86_64-hpet-restore-vread.patch
x86_64-restore-restore-nohpet-cmdline.patch
x86_64-block-irq-balancing-for-timer.patch
x86_64-prep-idle-loop-for-dynticks.patch
x86_64-enable-high-resolution-timers-and-dynticks.patch
x86_64-dynticks-disable-hpet_id_legsup-hpets.patch
geode-mfgpt-clock-event-device-support.patch
whitespace-fixes-time-syscalls.patch
whitespace-fixes-interval-timers.patch
whitespace-fixes-system-timers.patch
-
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
