f80ce871b3
Save and restore exec_lo/exec_hi around the mGetDoorbellId macro in
the signal_error case just like we do in the signal_debugger case.
Also reset the wave_id (ttmp4/ttmp5) to 0 since it isn't preserved.
0 will be detected as a new wave by the debugger api library.
Change-Id: I5123caa9431154ec1584bae85e42648c97c64c37
[ROCm/ROCR-Runtime commit: db6a781f0c]