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>
Extract distinct steps as dedicated functions, especially when the code
is duplicated. This eases analysis of the logic and highlights
differences between callers of a common code.
Related-To: NEO-7788
Signed-off-by: Maciej Bielski <maciej.bielski@intel.com>
Improves performance for benchmarks with KMD-migrated shared allocation
in scenarios with ZE_AFFINITY_MASK=0.1.
Related-To: NEO-7881
Signed-off-by: Milczarek, Slawomir <slawomir.milczarek@intel.com>
Add new regkey KMDSupportForCrossTileMigrationPolicy
(disabled by default, in absence of KMD suppport for cross-tile migrations)
to control placement of shared allocation and memory prefetch behavior.
Related-To: NEO-7885
Signed-off-by: Milczarek, Slawomir <slawomir.milczarek@intel.com>
Apply the KMD advise with preferred device location for KMD-migrated
shared allocation to migrate to lmem on every GPU page fault
(default KMD migration policy).
Related-To: NEO-7851
Signed-off-by: Milczarek, Slawomir <slawomir.milczarek@intel.com>
- Explicitly force unbind of Buffer Objects during unmap to ensure that
Buffer Objects can be reused in the same application.
Related-To: LOCI-4162
Signed-off-by: Spruit, Neil R <neil.r.spruit@intel.com>
It is possible that a module has so many kernels that the 4GB limit of
GPU VA is depleted when each kernel allocates a 64 KB page for its own
ISA. In such case, propagate the ZE_RESULT_ERROR_OUT_OF_DEVICE_MEMORY to
the API caller to indicate the actual problem.
Currently such scenario is not detected, the execution advances a bit
further and the following crashes do not let the user to easily
understand what happened.
Related-To: NEO-7788
Signed-off-by: Maciej Bielski <maciej.bielski@intel.com>
Select ccs engine for usm device and shared allocations
(i.e. for transfers from local to local).
Related-To: NEO-7252
Signed-off-by: Milczarek, Slawomir <slawomir.milczarek@intel.com>
Related-To: LOCI-3871
- Relaxed the Virtual Memory Reservation to allow pStart and not fail if
the pStart value is not obtained.
- Moves checks on pStart to the user to check and determine if they want
to re-reserve or use the address allocated.
- Changed reserveGpuAddress to use unit64_t type to allow internal
address range structure assignment without cast.
Signed-off-by: Spruit, Neil R <neil.r.spruit@intel.com>
Related-To: LOCI-3871
- Enabled allocation of specified base address in the targeted heap.
- Enabled virtual memory reservations to grow by allocating at the start
of the heap vs the end of the heap.
Signed-off-by: Spruit, Neil R <neil.r.spruit@intel.com>
When one process had exported and then opened IPC handle
of memory, then close function was called twice for the
same BO handle. It caused debugBreak() and aborted
an application.
This change allows multiple separate BOs to share one
handle. The last shared handle owner calls close() function.
Related-To: NEO-7200
Signed-off-by: Wrobel, Patryk <patryk.wrobel@intel.com>
Change IoctlHelper::ioctl function to return int.
Change IoctlHelper::createGemExt function to return int.
Change IoctlHelper::queryDistances function to return int.
Change UuidRegisterResult::retVal type to int32_t.
Rename res to ret in debug_session.cpp for consistency.
Signed-off-by: Filip Hazubski <filip.hazubski@intel.com>
Add a clearQueueTillFirstFailure interface to DeferredDeleter, which
iterates the queue from the front and delete the allocations in the
queue till a failure. It is called by defer deletion of allocations
occupied by mutliple contexts to unlock the execution in main thread
Related-To: NEO-7532
Signed-off-by: HeFan2017 <fan.f.he@intel.com>
Add a clearQueueTillFirstFailure interface to DeferredDeleter, which
iterates the queue from the front and delete the allocations in the
queue till a failure. It is called by defer deletion of allocations
occupied by mutliple contexts to unlock the execution in main thread
Related-To: NEO-7532
Signed-off-by: HeFan2017 <fan.f.he@intel.com>
Milczarek, Slawomir