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added support for rocm gpu autodetect #549

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merged 4 commits into from
Oct 13, 2017
Merged

added support for rocm gpu autodetect #549

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c9da17b
added support for rocm gpu autodetect
Oct 13, 2017
32cc82e
changed type casting from old style to static_cast
Oct 13, 2017
410d0b1
fixed code to generate gfx specific code object
Oct 13, 2017
d9ccda8
fixed namespaces
Oct 13, 2017
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2 changes: 1 addition & 1 deletion HalideIR
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Submodule HalideIR updated 3 files
+3 −2 Makefile
+1 −5 src/ir/IRPrinter.cpp
+2 −2 src/tvm/node.h
16 changes: 14 additions & 2 deletions src/codegen/llvm/codegen_amdgpu.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -135,9 +135,21 @@ runtime::Module BuildAMDGPU(Array<LoweredFunc> funcs, std::string target) {
CHECK(target.length(
) >= 4 &&
target.substr(0, 4) == "rocm");

TVMContext tvmCtx;
tvmCtx.device_type = kROCM;
tvmCtx.device_id = 0;
TVMRetValue val;
tvm::runtime::DeviceAPI::Get(tvmCtx)->GetAttr(tvmCtx, tvm::runtime::kExist, &val);
if (val.operator int() == 1) {
tvm::runtime::DeviceAPI::Get(tvmCtx)->GetAttr(tvmCtx, tvm::runtime::kComputeVersion, &val);
} else {
val = 803;
}

llvm::TargetMachine* tm = \
GetLLVMTargetMachine("-mtriple=amdgcn-amd-amdhsa-hcc -mcpu=gfx803" + \
target.substr(4, target.length() - 4));
GetLLVMTargetMachine("-mtriple=amdgcn-amd-amdhsa-hcc -mcpu=gfx" + \
std::to_string(val.operator int())+ target.substr(4, target.length() - 4));

std::unique_ptr<CodeGenAMDGPU> cg(new CodeGenAMDGPU());
std::unique_ptr<llvm::LLVMContext> ctx(new llvm::LLVMContext());
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6 changes: 5 additions & 1 deletion src/runtime/rocm/rocm_device_api.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -44,7 +44,11 @@ class ROCMDeviceAPI final : public DeviceAPI {
value = 64;
break;
}
case kComputeVersion: return;
case kComputeVersion:
hipDeviceProp_t prop;
ROCM_CALL(hipGetDeviceProperties(&prop, ctx.device_id));
*rv = prop.gcnArch;
return;
}
*rv = value;
}
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