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Date: Tue, 15 Feb 2011 22:34:48 -0800
From: John Stultz <johnstul@...ibm.com>
To: LKML <linux-kernel@...r.kernel.org>
Cc: John Stultz <johnstul@...ibm.com>, Tony Luck <tony.luck@...el.com>,
Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH 2/6] ia64: convert to clocksource_register_hz/khz
This converts the ia64 clocksources to use clocksource_register_hz/khz
This is untested, so any assistance in testing would be appreciated!
CC: Tony Luck <tony.luck@...el.com>
CC: Thomas Gleixner <tglx@...utronix.de>
Signed-off-by: John Stultz <johnstul@...ibm.com>
---
arch/ia64/kernel/cyclone.c | 6 +-----
arch/ia64/kernel/time.c | 9 ++-------
arch/ia64/sn/kernel/sn2/timer.c | 6 +-----
drivers/char/hpet.c | 6 +-----
4 files changed, 5 insertions(+), 22 deletions(-)
diff --git a/arch/ia64/kernel/cyclone.c b/arch/ia64/kernel/cyclone.c
index d52f1f7..f64097b 100644
--- a/arch/ia64/kernel/cyclone.c
+++ b/arch/ia64/kernel/cyclone.c
@@ -31,8 +31,6 @@ static struct clocksource clocksource_cyclone = {
.rating = 300,
.read = read_cyclone,
.mask = (1LL << 40) - 1,
- .mult = 0, /*to be caluclated*/
- .shift = 16,
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
@@ -118,9 +116,7 @@ int __init init_cyclone_clock(void)
/* initialize last tick */
cyclone_mc = cyclone_timer;
clocksource_cyclone.fsys_mmio = cyclone_timer;
- clocksource_cyclone.mult = clocksource_hz2mult(CYCLONE_TIMER_FREQ,
- clocksource_cyclone.shift);
- clocksource_register(&clocksource_cyclone);
+ clocksource_register_hz(&clocksource_cyclone, CYCLONE_TIMER_FREQ);
return 0;
}
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index 9702fa9..41c40f0 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -73,8 +73,6 @@ static struct clocksource clocksource_itc = {
.rating = 350,
.read = itc_get_cycles,
.mask = CLOCKSOURCE_MASK(64),
- .mult = 0, /*to be calculated*/
- .shift = 16,
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
#ifdef CONFIG_PARAVIRT
.resume = paravirt_clocksource_resume,
@@ -374,11 +372,8 @@ ia64_init_itm (void)
ia64_cpu_local_tick();
if (!itc_clocksource) {
- /* Sort out mult/shift values: */
- clocksource_itc.mult =
- clocksource_hz2mult(local_cpu_data->itc_freq,
- clocksource_itc.shift);
- clocksource_register(&clocksource_itc);
+ clocksource_register_hz(&clocksource_itc,
+ local_cpu_data->itc_freq);
itc_clocksource = &clocksource_itc;
}
}
diff --git a/arch/ia64/sn/kernel/sn2/timer.c b/arch/ia64/sn/kernel/sn2/timer.c
index 21d6f09..c34efda 100644
--- a/arch/ia64/sn/kernel/sn2/timer.c
+++ b/arch/ia64/sn/kernel/sn2/timer.c
@@ -33,8 +33,6 @@ static struct clocksource clocksource_sn2 = {
.rating = 450,
.read = read_sn2,
.mask = (1LL << 55) - 1,
- .mult = 0,
- .shift = 10,
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
@@ -57,9 +55,7 @@ ia64_sn_udelay (unsigned long usecs)
void __init sn_timer_init(void)
{
clocksource_sn2.fsys_mmio = RTC_COUNTER_ADDR;
- clocksource_sn2.mult = clocksource_hz2mult(sn_rtc_cycles_per_second,
- clocksource_sn2.shift);
- clocksource_register(&clocksource_sn2);
+ clocksource_register_hz(&clocksource_sn2, sn_rtc_cycles_per_second);
ia64_udelay = &ia64_sn_udelay;
}
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 7066e80..051474c 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -84,8 +84,6 @@ static struct clocksource clocksource_hpet = {
.rating = 250,
.read = read_hpet,
.mask = CLOCKSOURCE_MASK(64),
- .mult = 0, /* to be calculated */
- .shift = 10,
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
static struct clocksource *hpet_clocksource;
@@ -934,9 +932,7 @@ int hpet_alloc(struct hpet_data *hdp)
if (!hpet_clocksource) {
hpet_mctr = (void __iomem *)&hpetp->hp_hpet->hpet_mc;
CLKSRC_FSYS_MMIO_SET(clocksource_hpet.fsys_mmio, hpet_mctr);
- clocksource_hpet.mult = clocksource_hz2mult(hpetp->hp_tick_freq,
- clocksource_hpet.shift);
- clocksource_register(&clocksource_hpet);
+ clocksource_register_hz(&clocksource_hpet, hpetp->hp_tick_freq);
hpetp->hp_clocksource = &clocksource_hpet;
hpet_clocksource = &clocksource_hpet;
}
--
1.7.3.2.146.gca209
--
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