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-rw-r--r--sys/dev/timer/hpet.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/sys/dev/timer/hpet.c b/sys/dev/timer/hpet.c
index d276456..ab30f63 100644
--- a/sys/dev/timer/hpet.c
+++ b/sys/dev/timer/hpet.c
@@ -95,8 +95,8 @@ hpet_write(uint32_t reg, uint64_t val)
mmio_write64(addr, val);
}
-int
-hpet_msleep(size_t ms)
+static int
+hpet_sleep(uint64_t n, uint64_t units)
{
uint64_t caps;
uint32_t period;
@@ -112,7 +112,7 @@ hpet_msleep(size_t ms)
period = CAP_CLK_PERIOD(caps);
counter_val = hpet_read(HPET_REG_MAIN_COUNTER);
- ticks = counter_val + (ms * (1000000000000 / period));
+ ticks = counter_val + (n * (units / period));
while (hpet_read(HPET_REG_MAIN_COUNTER) < ticks) {
spinwait_hint();
@@ -122,6 +122,12 @@ hpet_msleep(size_t ms)
}
int
+hpet_msleep(size_t ms)
+{
+ return hpet_sleep(ms, 1000000000000);
+}
+
+int
hpet_init(void)
{
struct acpi_gas *gas;