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[fix] zeCommandListAppendMemAdvise to clear preferred location correctly

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The memadvise with preferred location for kmd-migrated shared allocation
is set to device associated with cmd list by default to migrate data
to lmem on non-atomic gpu page fault as well (for performance reasons).

Related-To: NEO-7252

Signed-off-by: Milczarek, Slawomir <slawomir.milczarek@intel.com>
This commit is contained in:
Milczarek, Slawomir
2023-04-21 00:36:45 +00:00
committed by Compute-Runtime-Automation
parent 09b111cc97
commit bf778be99e
14 changed files with 89 additions and 38 deletions
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17
shared/source/os_interface/linux/ioctl_helper_prelim.cpp
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@@ -213,19 +213,26 @@ uint32_t IoctlHelperPrelim20::getPreferredLocationAdvise() {
return PRELIM_I915_VM_ADVISE_PREFERRED_LOCATION;
}
std::optional<MemoryClassInstance> IoctlHelperPrelim20::getPreferredLocationRegion(uint32_t memoryInstance) {
std::optional<MemoryClassInstance> IoctlHelperPrelim20::getPreferredLocationRegion(PreferredLocation memoryLocation, uint32_t memoryInstance) {
MemoryClassInstance region{};
switch (NEO::DebugManager.flags.SetVmAdvisePreferredLocation.get()) {
case 0:
if (NEO::DebugManager.flags.SetVmAdvisePreferredLocation.get() != -1) {
memoryLocation = static_cast<PreferredLocation>(NEO::DebugManager.flags.SetVmAdvisePreferredLocation.get());
}
switch (memoryLocation) {
case PreferredLocation::Clear:
region.memoryClass = -1;
region.memoryInstance = 0;
break;
case PreferredLocation::System:
region.memoryClass = getDrmParamValue(DrmParam::MemoryClassSystem);
region.memoryInstance = 0;
break;
case 1:
case PreferredLocation::Device:
default:
region.memoryClass = getDrmParamValue(DrmParam::MemoryClassDevice);
region.memoryInstance = memoryInstance;
break;
case 2:
case PreferredLocation::None:
return std::nullopt;
}
return region;