Since the majority of the Hostcall implementation now sits in the
commmon layer, the PAL backend simply just needs to invoke it. One thing
that is missing though is HSA signal support.
The newly added pal::Signal class is a light emulaion of what HSA
signals provide. The current implementation is just enough to get
Hostcall working, but it can be expanded in the future if needed to
fully emulate HSA signals.
The major difference for now between PAL and ROCm hostcall
implemenations is that PAL doesn't support blocking signals. This will
be enabled in the near future. For now use active wait for PAL.
Change-Id: I746557354ab9d71a7d4a31f9320fcc2fee5aee7f
For roc devices create hsa_agent_t handles using a pointer to the
device::Device. This ensures each device has a different hsa_agent_t
handle. This may be necessary to ensure the loader symbol lookup will
search only symbols for the correct device.
Change-Id: Iee6dd40d68bf22a02ce8c75cbe5ac8f5a0d9e418
- Add assertions to enforce that objects are of the correct kind and
have been allocated.
- Make destructors check if objects have been allocated before
deleting.
- Operations that require a non-NullDevice return failure if given a
NullDevice.
- Use static_cast rather than reinterpret_cast when cohersing from a
base class to a derived class.
Change-Id: I02ee0ea9d7982fd7ca29d49c9b02cfae111b7127
Rename functions that access devices to reflect the derived device
they return. This includes the base device::Device and the derived
gpu/pal/roc device classes in both NullDevice and Device forms. Change
to use the least derived versions to clarify what operations will be
available.
Change-Id: I1abb6bfed7efa24852bc8d0d49acaea357d8b5d0
Vladislav Sytchenko
Tony Tye
German Andryeyev
Laurent Morichetti