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performance: add low latency hint for i915

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i915 has provided the low latency hint interface, it helps
improve the performance for light workload a lot.

Related-To: NEO-14250

Signed-off-by: Chuansheng Liu <chuansheng.liu@intel.com>
This commit is contained in:
Chuansheng Liu
2025-02-26 07:46:54 +00:00
committed by Compute-Runtime-Automation
parent 7d851dda87
commit 1876a43024
8 changed files with 56 additions and 3 deletions
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11
shared/test/common/libult/linux/drm_mock.cpp
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@@ -114,6 +114,10 @@ int DrmMock::ioctl(DrmIoctl request, void *arg) {
*gp->value = this->storedOaTimestampFrequency;
return this->storedRetVal;
}
if (gp->param == I915_PARAM_HAS_CONTEXT_FREQ_HINT) {
*gp->value = this->storedRetValForHasContextFreqHint;
return this->storedRetVal;
}
}
if ((request == DrmIoctl::gemContextCreateExt) && (arg != nullptr)) {
@@ -127,6 +131,13 @@ int DrmMock::ioctl(DrmIoctl request, void *arg) {
receivedContextCreateSetParam = *reinterpret_cast<GemContextCreateExtSetParam *>(create->extensions);
if (receivedContextCreateSetParam.base.name == I915_CONTEXT_CREATE_EXT_SETPARAM) {
receivedContextParamRequestCount++;
if (receivedContextCreateSetParam.base.nextExtension != 0) {
auto offset = offsetof(GemContextCreateExtSetParam, param);
auto ext = reinterpret_cast<GemContextParam *>(receivedContextCreateSetParam.base.nextExtension + offset);
if (ext->param == I915_CONTEXT_PARAM_LOW_LATENCY) {
this->lowLatencyHintRequested = true;
}
}
receivedContextParamRequest = *reinterpret_cast<GemContextParam *>(&receivedContextCreateSetParam.param);
if (receivedContextCreateSetParam.param.param == I915_CONTEXT_PARAM_VM) {
this->requestSetVmId = receivedContextParamRequest.value;