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If requested to Sleep for less than our hz granularity (e.g., 10 ms),

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use DELAY instead of tsleep.

Submitted by:	peter
This commit is contained in:
Nate Lawson 2003-10-02 05:09:37 +00:00
parent 81b460c5eb
commit 8525ffefc2
1 changed files with 13 additions and 6 deletions
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19
sys/dev/acpica/Osd/OsdSchedule.c
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@ -243,7 +243,7 @@ AcpiOsExecuteQueue(void *arg, int pending)
* make do with that.
*/
void
AcpiOsSleep (UINT32 Seconds, UINT32 Milliseconds)
AcpiOsSleep(UINT32 Seconds, UINT32 Milliseconds)
{
int timo;
static int dummy;
@ -251,14 +251,21 @@ AcpiOsSleep (UINT32 Seconds, UINT32 Milliseconds)
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
timo = (Seconds * hz) + Milliseconds * hz / 1000;
if (timo == 0)
timo = 1;
tsleep(&dummy, 0, "acpislp", timo);
/*
* If requested sleep time is less than our hz resolution, use
* DELAY instead for better granularity.
*/
if (timo > 0)
tsleep(&dummy, 0, "acpislp", timo);
else
DELAY(Milliseconds * 1000);
return_VOID;
}
void
AcpiOsStall (UINT32 Microseconds)
AcpiOsStall(UINT32 Microseconds)
{
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
@ -267,7 +274,7 @@ AcpiOsStall (UINT32 Microseconds)
}
UINT32
AcpiOsGetThreadId (void)
AcpiOsGetThreadId(void)
{
struct proc *p;
/* XXX do not add FUNCTION_TRACE here, results in recursive call */