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rocm-systems/projects
Sean Keely e0ebcb9cc3 Workaround gfx90a SDMA0 quirk.
Because of sharing ports with other engines, the
hardware design team has advised that SDMA0 on gfx90a
should only be used for host-to-device data transfers.
The recommendation is to use SDMA1 for any device-to-device
or device-to-host data transfers.

A driver change will ensure that, for each gfx90a
device, only the first PCIe SDMA queue a process
requests will possibly be from SDMA0. This patch ensures
that the first PCIe queue requested (which may be from
SDMA0) is always set up for host-to-device.

Change-Id: I6793ca95596dedaed9d5be1dbd9469ceef2a5c33


[ROCm/ROCR-Runtime commit: 280a458d0c]
2021-09-30 05:53:49 -04:00
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