Comment
Comment by Rounin
You should be able to make it think you have another card:
export HSA_OVERRIDE_GFX_VERSION=10.3.0
The possible values are said to be:
# gfx1030 = "10.3.0"
# gfx900 = "9.0.0"
# gfx906 = "9.0.6"
# gfx908 = "9.0.8"
# gfx90a = "9.0.a"