diff options
Diffstat (limited to 'sys/dev/acpica/Osd/OsdSynch.c')
| -rw-r--r-- | sys/dev/acpica/Osd/OsdSynch.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/sys/dev/acpica/Osd/OsdSynch.c b/sys/dev/acpica/Osd/OsdSynch.c index 99a69ec..db29239 100644 --- a/sys/dev/acpica/Osd/OsdSynch.c +++ b/sys/dev/acpica/Osd/OsdSynch.c @@ -188,6 +188,23 @@ AcpiOsWaitSemaphore(ACPI_SEMAPHORE Handle, UINT32 Units, UINT16 Timeout) } break; default: + if (cold) { + /* + * Just spin polling the semaphore once a + * millisecond. + */ + while (!ACPISEM_AVAIL(as, Units)) { + if (Timeout == 0) { + status = AE_TIME; + break; + } + Timeout--; + mtx_unlock(&as->as_lock); + DELAY(1000); + mtx_lock(&as->as_lock); + } + break; + } tmo = timeout2hz(Timeout); while (!ACPISEM_AVAIL(as, Units)) { prevtick = ticks; @@ -381,6 +398,23 @@ AcpiOsAcquireMutex(ACPI_MUTEX Handle, UINT16 Timeout) } break; default: + if (cold) { + /* + * Just spin polling the mutex once a + * millisecond. + */ + while (!ACPIMTX_AVAIL(am)) { + if (Timeout == 0) { + status = AE_TIME; + break; + } + Timeout--; + mtx_unlock(&am->am_lock); + DELAY(1000); + mtx_lock(&am->am_lock); + } + break; + } tmo = timeout2hz(Timeout); while (!ACPIMTX_AVAIL(am)) { prevtick = ticks; |
