Linux: Navi 2 HSA_OVERRIDE_GFX_VERSION workaround may no longer trigger on recent kernels

Since #458, AMDGPU.jl sets HSA_OVERRIDE_GFX_VERSION=10.3.0 when a KFD topology node is named navy_flounder (src/discovery/discovery.jl:68 on main, moved to src/AMDGPU.jl:161 in #1028):

if node_name == "navy_flounder"
    ENV["HSA_OVERRIDE_GFX_VERSION"] = "10.3.0"
    break
end

On kernel 6.17.0 with an RX 7900 XTX, the GPU node reports no ASIC codename:

node 0: name=''              gfx_target_version=0        (CPU)
node 1: name='ip discovery'  gfx_target_version=110000   (GPU)

If Navi 2 cards report the same on current kernels, the comparison never matches and the workaround is inert. I have no Navi 2 hardware to confirm, so this needs a check from someone with an RX 6700/6750 XT or similar.

MWE

uname -r
for d in /sys/class/kfd/kfd/topology/nodes/*/; do
  echo "$(basename $d): name='$(cat $d/name)' gfx=$(grep -m1 ^gfx_target_version $d/properties | awk '{print $2}')"
done

using AMDGPU
@show get(ENV, "HSA_OVERRIDE_GFX_VERSION", "(unset)")

10.3.0 means it fired, (unset) means it did not. Please report kernel version, GPU model, the node lines, and which value you get.

Start with the MWE in the issue on a Navi 2 GPU and record the kernel version, node lines, and HSA_OVERRIDE_GFX_VERSION value. Then inspect the topology check in src/AMDGPU.jl:161 and compare its navy_flounder condition with the observed node data. Done means confirming whether recent kernels prevent the workaround from firing and documenting the result or required behavior.