5b19f42b63
This patch lazily initializes queues/streams/events since their initialization might come at a cost even if we do not use them. To further benefit from this, AMDGPU/HSA queue management is moved into the AMDGPUStreamManager of an AMDGPUDevice. Streams may now use different HSA queues during their lifetime and identify busy queues. When a Stream is requested from the resource manager, it will search for and try to assign an idle queue. During the search for an idle queue the manager may initialize more queues, up to the set maximum (default: 4). When no idle queue could be found: resort to round robin selection. With contributions from Johannes Doerfert <johannes@jdoerfert.de> Depends on D156245 Reviewed By: kevinsala Differential Revision: https://reviews.llvm.org/D154523
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