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-rw-r--r--hw/timer/hpet.c6
-rw-r--r--include/hw/timer/hpet.h4
2 files changed, 5 insertions, 5 deletions
diff --git a/hw/timer/hpet.c b/hw/timer/hpet.c
index 2bb62211c3..3037bef72e 100644
--- a/hw/timer/hpet.c
+++ b/hw/timer/hpet.c
@@ -126,12 +126,12 @@ static uint32_t hpet_time_after64(uint64_t a, uint64_t b)
static uint64_t ticks_to_ns(uint64_t value)
{
- return (muldiv64(value, HPET_CLK_PERIOD, FS_PER_NS));
+ return value * HPET_CLK_PERIOD;
}
static uint64_t ns_to_ticks(uint64_t value)
{
- return (muldiv64(value, FS_PER_NS, HPET_CLK_PERIOD));
+ return value / HPET_CLK_PERIOD;
}
static uint64_t hpet_fixup_reg(uint64_t new, uint64_t old, uint64_t mask)
@@ -758,7 +758,7 @@ static void hpet_realize(DeviceState *dev, Error **errp)
/* 64-bit main counter; LegacyReplacementRoute. */
s->capability = 0x8086a001ULL;
s->capability |= (s->num_timers - 1) << HPET_ID_NUM_TIM_SHIFT;
- s->capability |= ((HPET_CLK_PERIOD) << 32);
+ s->capability |= ((uint64_t)(HPET_CLK_PERIOD * FS_PER_NS) << 32);
qdev_init_gpio_in(dev, hpet_handle_legacy_irq, 2);
qdev_init_gpio_out(dev, &s->pit_enabled, 1);
diff --git a/include/hw/timer/hpet.h b/include/hw/timer/hpet.h
index 773953be75..d872909ce1 100644
--- a/include/hw/timer/hpet.h
+++ b/include/hw/timer/hpet.h
@@ -16,9 +16,9 @@
#include "qom/object.h"
#define HPET_BASE 0xfed00000
-#define HPET_CLK_PERIOD 10000000ULL /* 10000000 femtoseconds == 10ns*/
+#define HPET_CLK_PERIOD 10 /* 10 ns*/
-#define FS_PER_NS 1000000
+#define FS_PER_NS 1000000 /* 1000000 femtoseconds == 1 ns */
#define HPET_MIN_TIMERS 3
#define HPET_MAX_TIMERS 32