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Workaround Kirin 9000 core mask reporting bug #25

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Merged
solidpixel merged 2 commits into from
Jun 17, 2025
Merged

Workaround Kirin 9000 core mask reporting bug #25

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e9990e3
Workaround Kirin 9000 core mask reporting bug
solidpixel Jun 17, 2025
44891f3
Merge all core masks
solidpixel Jun 17, 2025
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11 changes: 9 additions & 2 deletions source/libgpuinfo.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -852,6 +852,8 @@ class prop_decoder {
bool decode(gpuinfo& info) {
bool success = true;

// Zero init things we can read out-of-order
info.shader_core_mask = 0;
uint64_t raw_gpu_id {};
uint64_t raw_core_features {};
uint64_t raw_thread_features {};
Expand Down Expand Up @@ -893,14 +895,19 @@ class prop_decoder {
assert(value == 1);
break;
case prop_id_t::coherency_group_0:
info.num_shader_cores = __builtin_popcount(value);
info.shader_core_mask = value;
case prop_id_t::coherency_group_1:
case prop_id_t::coherency_group_2:
case prop_id_t::coherency_group_3:
info.shader_core_mask |= value;
break;
default:
break;
}
}

// Accumulate this after all shader core bitmasks are merged
info.num_shader_cores = __builtin_popcount(info.shader_core_mask);

// Decode architecture versions
constexpr uint64_t bits4 { 0xF };
constexpr uint64_t bits8 { 0xFF };
Expand Down