The patch titled
time-x86_64-tsc-fixup-clocksource-changes
has been removed from the -mm tree. Its filename was
time-x86_64-tsc-fixup-clocksource-changes.patch
This patch was dropped because it was folded into time-x86_64-convert-x86_64-to-use-generic_time.patch
------------------------------------------------------
Subject: time-x86_64-tsc-fixup-clocksource-changes
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
arch/x86_64/kernel/tsc.c | 43 +++++++++++--------------------------
1 files changed, 13 insertions(+), 30 deletions(-)
diff -puN arch/x86_64/kernel/tsc.c~time-x86_64-tsc-fixup-clocksource-changes arch/x86_64/kernel/tsc.c
--- a/arch/x86_64/kernel/tsc.c~time-x86_64-tsc-fixup-clocksource-changes
+++ a/arch/x86_64/kernel/tsc.c
@@ -46,13 +46,6 @@ static inline int check_tsc_unstable(voi
{
return tsc_unstable;
}
-
-void mark_tsc_unstable(void)
-{
- tsc_unstable = 1;
-}
-EXPORT_SYMBOL_GPL(mark_tsc_unstable);
-
#ifdef CONFIG_CPU_FREQ
/* Frequency scaling support. Adjust the TSC based timer when the cpu frequency
@@ -143,12 +136,6 @@ core_initcall(cpufreq_tsc);
static int tsc_unstable = 0;
-void mark_tsc_unstable(void)
-{
- tsc_unstable = 1;
-}
-EXPORT_SYMBOL_GPL(mark_tsc_unstable);
-
/*
* Make an educated guess if the TSC is trustworthy and synchronized
* over all CPUs.
@@ -187,9 +174,6 @@ __setup("notsc", notsc_setup);
/* clock source code: */
-
-static int tsc_update_callback(void);
-
static cycle_t read_tsc(void)
{
cycle_t ret = (cycle_t)get_cycles_sync();
@@ -200,25 +184,24 @@ static struct clocksource clocksource_ts
.name = "tsc",
.rating = 300,
.read = read_tsc,
- .mask = (cycle_t)-1,
- .mult = 0, /* to be set */
+ .mask = CLOCKSOURCE_MASK(64),
.shift = 22,
- .update_callback = tsc_update_callback,
- .is_continuous = 1,
+ .flags = CLOCK_SOURCE_IS_CONTINUOUS |
+ CLOCK_SOURCE_MUST_VERIFY,
};
-static int tsc_update_callback(void)
+void mark_tsc_unstable(void)
{
- int change = 0;
-
- /* check to see if we should switch to the safe clocksource: */
- if (clocksource_tsc.rating != 50 && check_tsc_unstable()) {
- clocksource_tsc.rating = 50;
- clocksource_reselect();
- change = 1;
+ if (!tsc_unstable) {
+ tsc_unstable = 1;
+ /* Change only the rating, when not registered */
+ if (clocksource_tsc.mult)
+ clocksource_change_rating(&clocksource_tsc, 0);
+ else
+ clocksource_tsc.rating = 0;
}
- return change;
}
+EXPORT_SYMBOL_GPL(mark_tsc_unstable);
static int __init init_tsc_clocksource(void)
{
@@ -226,7 +209,7 @@ static int __init init_tsc_clocksource(v
clocksource_tsc.mult = clocksource_khz2mult(cpu_khz,
clocksource_tsc.shift);
if (check_tsc_unstable())
- clocksource_tsc.rating = 50;
+ clocksource_tsc.rating = 0;
return clocksource_register(&clocksource_tsc);
}
_
Patches currently in -mm which might be from tglx@xxxxxxxxxxxxx are
origin.patch
add-irq-flag-to-disable-balancing-for-an-interrupt.patch
add-a-functions-to-handle-interrupt-affinity-setting.patch
hz-free-ntp.patch
uninline-jiffiesh-functions.patch
fix-multiple-conversion-bugs-in-msecs_to_jiffies.patch
fix-timeout-overflow-with-jiffies.patch
gtod-persistent-clock-support.patch
i386-use-gtod-persistent-clock-support.patch
i386-remove-useless-code-in-tscc.patch
simplify-the-registration-of-clocksources.patch
x86-rewrite-smp-tsc-sync-code.patch
clocksource-replace-is_continuous-by-a-flag-field.patch
clocksource-fixup-is_continous-changes-on-arm.patch
clocksource-fixup-is_continous-changes-on-avr32.patch
clocksource-fixup-is_continous-changes-on-s390.patch
clocksource-fixup-is_continous-changes-on-mips.patch
clocksource-remove-the-update-callback.patch
clocksource-add-verification-watchdog-helper.patch
mark-tsc-on-geodelx-reliable.patch
uninline-irq_enter.patch
fix-cascade-lookup-of-next_timer_interrupt.patch
extend-next_timer_interrupt-to-use-a-reference-jiffie.patch
hrtimers-namespace-and-enum-cleanup.patch
hrtimers-cleanup-locking.patch
hrtimers-add-state-tracking.patch
hrtimers-clean-up-callback-tracking.patch
hrtimers-move-and-add-documentation.patch
acpi-fix-missing-include-for-up.patch
acpi-keep-track-of-timer-broadcasting.patch
allow-early-access-to-the-power-management-timer.patch
i386-apic-clean-up-the-apic-code.patch
clockevents-add-core-functionality.patch
tick-management-core-functionality.patch
tick-management-broadcast-functionality.patch
tick-management-dyntick--highres-functionality.patch
clockevents-i383-drivers.patch
i386-rework-local-apic-timer-calibration.patch
i386-prepare-for-dyntick.patch
i386-prepare-nmi-watchdog-for-dynticks.patch
hrtimers-add-high-resolution-timer-support.patch
hrtimers-prevent-possible-itimer-dos.patch
add-debugging-feature-proc-timer_stat.patch
add-debugging-feature-proc-timer_list.patch
add-sysrq-q-to-print-timer_list-debug-info.patch
generic-vsyscall-gtod-support-for-generic_time.patch
time-x86_64-hpet_address-cleanup.patch
time-x86_64-split-x86_64-kernel-timec-up.patch
time-x86_64-convert-x86_64-to-use-generic_time.patch
time-x86_64-tsc-fixup-clocksource-changes.patch
time-x86_64-re-enable-vsyscall-support-for-x86_64.patch
posix-timers-rcu-optimization-for-clock_gettime.patch
genirq-do-not-mask-interrupts-by-default.patch
genirq-remove-irq_disabled.patch
small-irq-management-simplification.patch
-
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