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Diffstat (limited to 'arch/sparc/kernel/time_64.c')
-rw-r--r--arch/sparc/kernel/time_64.c104
1 files changed, 45 insertions, 59 deletions
diff --git a/arch/sparc/kernel/time_64.c b/arch/sparc/kernel/time_64.c
index 2db3c2229b9..3fddf64c7fc 100644
--- a/arch/sparc/kernel/time_64.c
+++ b/arch/sparc/kernel/time_64.c
@@ -9,9 +9,8 @@
*/
#include <linux/errno.h>
-#include <linux/module.h>
+#include <linux/export.h>
#include <linux/sched.h>
-#include <linux/smp_lock.h>
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/string.h>
@@ -36,6 +35,7 @@
#include <linux/clocksource.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
+#include <linux/ftrace.h>
#include <asm/oplib.h>
#include <asm/timer.h>
@@ -419,12 +419,12 @@ static struct platform_device rtc_cmos_device = {
.num_resources = 1,
};
-static int __devinit rtc_probe(struct of_device *op, const struct of_device_id *match)
+static int rtc_probe(struct platform_device *op)
{
struct resource *r;
printk(KERN_INFO "%s: RTC regs at 0x%llx\n",
- op->node->full_name, op->resource[0].start);
+ op->dev.of_node->full_name, op->resource[0].start);
/* The CMOS RTC driver only accepts IORESOURCE_IO, so cons
* up a fake resource so that the probe works for all cases.
@@ -442,7 +442,7 @@ static int __devinit rtc_probe(struct of_device *op, const struct of_device_id *
return platform_device_register(&rtc_cmos_device);
}
-static struct of_device_id __initdata rtc_match[] = {
+static const struct of_device_id rtc_match[] = {
{
.name = "rtc",
.compatible = "m5819",
@@ -462,11 +462,12 @@ static struct of_device_id __initdata rtc_match[] = {
{},
};
-static struct of_platform_driver rtc_driver = {
- .match_table = rtc_match,
+static struct platform_driver rtc_driver = {
.probe = rtc_probe,
- .driver = {
- .name = "rtc",
+ .driver = {
+ .name = "rtc",
+ .owner = THIS_MODULE,
+ .of_match_table = rtc_match,
},
};
@@ -476,17 +477,17 @@ static struct platform_device rtc_bq4802_device = {
.num_resources = 1,
};
-static int __devinit bq4802_probe(struct of_device *op, const struct of_device_id *match)
+static int bq4802_probe(struct platform_device *op)
{
printk(KERN_INFO "%s: BQ4802 regs at 0x%llx\n",
- op->node->full_name, op->resource[0].start);
+ op->dev.of_node->full_name, op->resource[0].start);
rtc_bq4802_device.resource = &op->resource[0];
return platform_device_register(&rtc_bq4802_device);
}
-static struct of_device_id __initdata bq4802_match[] = {
+static const struct of_device_id bq4802_match[] = {
{
.name = "rtc",
.compatible = "bq4802",
@@ -494,11 +495,12 @@ static struct of_device_id __initdata bq4802_match[] = {
{},
};
-static struct of_platform_driver bq4802_driver = {
- .match_table = bq4802_match,
+static struct platform_driver bq4802_driver = {
.probe = bq4802_probe,
- .driver = {
- .name = "bq4802",
+ .driver = {
+ .name = "bq4802",
+ .owner = THIS_MODULE,
+ .of_match_table = bq4802_match,
},
};
@@ -532,9 +534,9 @@ static struct platform_device m48t59_rtc = {
},
};
-static int __devinit mostek_probe(struct of_device *op, const struct of_device_id *match)
+static int mostek_probe(struct platform_device *op)
{
- struct device_node *dp = op->node;
+ struct device_node *dp = op->dev.of_node;
/* On an Enterprise system there can be multiple mostek clocks.
* We should only match the one that is on the central FHC bus.
@@ -550,18 +552,19 @@ static int __devinit mostek_probe(struct of_device *op, const struct of_device_i
return platform_device_register(&m48t59_rtc);
}
-static struct of_device_id __initdata mostek_match[] = {
+static const struct of_device_id mostek_match[] = {
{
.name = "eeprom",
},
{},
};
-static struct of_platform_driver mostek_driver = {
- .match_table = mostek_match,
+static struct platform_driver mostek_driver = {
.probe = mostek_probe,
- .driver = {
- .name = "mostek",
+ .driver = {
+ .name = "mostek",
+ .owner = THIS_MODULE,
+ .of_match_table = mostek_match,
},
};
@@ -583,9 +586,9 @@ static int __init clock_init(void)
if (tlb_type == hypervisor)
return platform_device_register(&rtc_sun4v_device);
- (void) of_register_driver(&rtc_driver, &of_platform_bus_type);
- (void) of_register_driver(&mostek_driver, &of_platform_bus_type);
- (void) of_register_driver(&bq4802_driver, &of_platform_bus_type);
+ (void) platform_driver_register(&rtc_driver);
+ (void) platform_driver_register(&mostek_driver);
+ (void) platform_driver_register(&bq4802_driver);
return 0;
}
@@ -656,8 +659,7 @@ static int sparc64_cpufreq_notifier(struct notifier_block *nb, unsigned long val
ft->clock_tick_ref = cpu_data(cpu).clock_tick;
}
if ((val == CPUFREQ_PRECHANGE && freq->old < freq->new) ||
- (val == CPUFREQ_POSTCHANGE && freq->old > freq->new) ||
- (val == CPUFREQ_RESUMECHANGE)) {
+ (val == CPUFREQ_POSTCHANGE && freq->old > freq->new)) {
cpu_data(cpu).clock_tick =
cpufreq_scale(ft->clock_tick_ref,
ft->ref_freq,
@@ -705,7 +707,7 @@ static void sparc64_timer_setup(enum clock_event_mode mode,
case CLOCK_EVT_MODE_UNUSED:
WARN_ON(1);
break;
- };
+ }
}
static struct clock_event_device sparc64_clockevent = {
@@ -718,7 +720,7 @@ static struct clock_event_device sparc64_clockevent = {
};
static DEFINE_PER_CPU(struct clock_event_device, sparc64_events);
-void timer_interrupt(int irq, struct pt_regs *regs)
+void __irq_entry timer_interrupt(int irq, struct pt_regs *regs)
{
struct pt_regs *old_regs = set_irq_regs(regs);
unsigned long tick_mask = tick_ops->softint_mask;
@@ -729,7 +731,8 @@ void timer_interrupt(int irq, struct pt_regs *regs)
irq_enter();
- kstat_this_cpu.irqs[0]++;
+ local_cpu_data().irq0_irqs++;
+ kstat_incr_irq_this_cpu(0);
if (unlikely(!evt->event_handler)) {
printk(KERN_WARNING
@@ -742,7 +745,7 @@ void timer_interrupt(int irq, struct pt_regs *regs)
set_irq_regs(old_regs);
}
-void __devinit setup_sparc64_timer(void)
+void setup_sparc64_timer(void)
{
struct clock_event_device *sevt;
unsigned long pstate;
@@ -775,26 +778,9 @@ void __devinit setup_sparc64_timer(void)
static struct clocksource clocksource_tick = {
.rating = 100,
.mask = CLOCKSOURCE_MASK(64),
- .shift = 16,
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
-static void __init setup_clockevent_multiplier(unsigned long hz)
-{
- unsigned long mult, shift = 32;
-
- while (1) {
- mult = div_sc(hz, NSEC_PER_SEC, shift);
- if (mult && (mult >> 32UL) == 0UL)
- break;
-
- shift--;
- }
-
- sparc64_clockevent.shift = shift;
- sparc64_clockevent.mult = mult;
-}
-
static unsigned long tb_ticks_per_usec __read_mostly;
void __delay(unsigned long loops)
@@ -814,6 +800,11 @@ void udelay(unsigned long usecs)
}
EXPORT_SYMBOL(udelay);
+static cycle_t clocksource_tick_read(struct clocksource *cs)
+{
+ return tick_ops->get_tick();
+}
+
void __init time_init(void)
{
unsigned long freq = sparc64_init_timers();
@@ -824,26 +815,21 @@ void __init time_init(void)
clocksource_hz2mult(freq, SPARC64_NSEC_PER_CYC_SHIFT);
clocksource_tick.name = tick_ops->name;
- clocksource_tick.mult =
- clocksource_hz2mult(freq,
- clocksource_tick.shift);
- clocksource_tick.read = tick_ops->get_tick;
+ clocksource_tick.read = clocksource_tick_read;
+ clocksource_register_hz(&clocksource_tick, freq);
printk("clocksource: mult[%x] shift[%d]\n",
clocksource_tick.mult, clocksource_tick.shift);
- clocksource_register(&clocksource_tick);
-
sparc64_clockevent.name = tick_ops->name;
-
- setup_clockevent_multiplier(freq);
+ clockevents_calc_mult_shift(&sparc64_clockevent, freq, 4);
sparc64_clockevent.max_delta_ns =
clockevent_delta2ns(0x7fffffffffffffffUL, &sparc64_clockevent);
sparc64_clockevent.min_delta_ns =
clockevent_delta2ns(0xF, &sparc64_clockevent);
- printk("clockevent: mult[%lx] shift[%d]\n",
+ printk("clockevent: mult[%x] shift[%d]\n",
sparc64_clockevent.mult, sparc64_clockevent.shift);
setup_sparc64_timer();
@@ -857,7 +843,7 @@ unsigned long long sched_clock(void)
>> SPARC64_NSEC_PER_CYC_SHIFT;
}
-int __devinit read_current_timer(unsigned long *timer_val)
+int read_current_timer(unsigned long *timer_val)
{
*timer_val = tick_ops->get_tick();
return 0;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-06 19:07:17 +0000