HSAKMT_STATUS
HSAKMTAPI
hsaKmtCreateEvent(
HsaEventDescriptor* EventDesc, //IN
bool ManualReset, //IN
bool IsSignaled, //IN
HsaEvent** Event //OUT
)
{
CHECK_KFD_OPEN();
if (EventDesc->EventType >= HSA_EVENTTYPE_MAXID)
{
return HSAKMT_STATUS_INVALID_PARAMETER;
}
HsaEvent* e = malloc(sizeof(HsaEvent));
if (e == NULL)
{
return HSAKMT_STATUS_ERROR;
}
*Event = e;
return HSAKMT_STATUS_SUCCESS;
}
HSAKMT_STATUS HSAKMTAPI hsaKmtGetClockCounters(HSAuint32 NodeId,
HsaClockCounters *Counters)
{
HSAKMT_STATUS result;
uint32_t gpu_id;
struct kfd_ioctl_get_clock_counters_args args = {0};
int err;
CHECK_KFD_OPEN();
result = validate_nodeid(NodeId, &gpu_id);
if (result != HSAKMT_STATUS_SUCCESS)
return result;
args.gpu_id = gpu_id;
err = kmtIoctl(kfd_fd, AMDKFD_IOC_GET_CLOCK_COUNTERS, &args);
if (err < 0) {
result = HSAKMT_STATUS_ERROR;
} else {
/* At this point the result is already HSAKMT_STATUS_SUCCESS */
Counters->GPUClockCounter = args.gpu_clock_counter;
Counters->CPUClockCounter = args.cpu_clock_counter;
Counters->SystemClockCounter = args.system_clock_counter;
Counters->SystemClockFrequencyHz = args.system_clock_freq;
}
return result;
}
HSAKMT_STATUS
HSAKMTAPI
hsaKmtQueryEventState(
HsaEvent* Event //IN
)
{
CHECK_KFD_OPEN();
return HSAKMT_STATUS_SUCCESS;
}
HSAKMT_STATUS
HSAKMTAPI
hsaKmtResetEvent(
HsaEvent* Event //IN
)
{
CHECK_KFD_OPEN();
return HSAKMT_STATUS_SUCCESS;
}
HSAKMT_STATUS
HSAKMTAPI
hsaKmtDestroyEvent(
HsaEvent* Event //IN
)
{
CHECK_KFD_OPEN();
free(Event);
return HSAKMT_STATUS_SUCCESS;
}
HSAKMT_STATUS
HSAKMTAPI
hsaKmtWaitOnMultipleEvents(
HsaEvent* Events[], //IN
HSAuint32 NumEvents, //IN
bool WaitOnAll, //IN
HSAuint32 Milliseconds //IN
)
{
CHECK_KFD_OPEN();
return hsaKmtWaitOnEvent(NULL, Milliseconds);
}
HSAKMT_STATUS HSAKMTAPI hsaKmtGetVersion(HsaVersionInfo *VersionInfo)
{
CHECK_KFD_OPEN();
struct kfd_ioctl_get_version_args args = {0};
if (kmtIoctl(kfd_fd, AMDKFD_IOC_GET_VERSION, &args) == -1)
return HSAKMT_STATUS_ERROR;
VersionInfo->KernelInterfaceMajorVersion = args.major_version;
VersionInfo->KernelInterfaceMinorVersion = args.minor_version;
return HSAKMT_STATUS_SUCCESS;
}
HSAKMT_STATUS
HSAKMTAPI
hsaKmtWaitOnEvent(
HsaEvent* Event, //IN
HSAuint32 Milliseconds //IN
)
{
CHECK_KFD_OPEN();
if (Milliseconds == HSA_EVENTTIMEOUT_INFINITE)
{
while (1) { pause(); }
}
else if (Milliseconds != HSA_EVENTTIMEOUT_IMMEDIATE)
{
struct timespec req;
req.tv_sec = Milliseconds / 1000;
req.tv_nsec = (long)(Milliseconds % 1000) * 1000000;
while (1)
{
struct timespec rem;
int err = nanosleep(&req, &rem);
if (err == -1 && errno == EINTR)
{
req = rem;
}
else
{
break; // success or other error
}
}
}
return HSAKMT_STATUS_WAIT_TIMEOUT;
}