1 #include "clang/Basic/Cuda.h"
3 #include "llvm/ADT/StringRef.h"
4 #include "llvm/ADT/Twine.h"
5 #include "llvm/Support/ErrorHandling.h"
6 #include "llvm/Support/VersionTuple.h"
10 struct CudaVersionMapEntry {
13 llvm::VersionTuple TVersion;
15 #define CUDA_ENTRY(major, minor) \
17 #major "." #minor, CudaVersion::CUDA_##major##minor, \
18 llvm::VersionTuple(major, minor) \
21 static const CudaVersionMapEntry CudaNameVersionMap[] = {
40 {"", CudaVersion::NEW, llvm::VersionTuple(std::numeric_limits<int>::max())},
41 {"unknown", CudaVersion::UNKNOWN, {}} // End of list tombstone.
45 const char *CudaVersionToString(CudaVersion V) {
46 for (auto *I = CudaNameVersionMap; I->Version != CudaVersion::UNKNOWN; ++I)
50 return CudaVersionToString(CudaVersion::UNKNOWN);
53 CudaVersion CudaStringToVersion(const llvm::Twine &S) {
54 std::string VS = S.str();
55 for (auto *I = CudaNameVersionMap; I->Version != CudaVersion::UNKNOWN; ++I)
58 return CudaVersion::UNKNOWN;
61 CudaVersion ToCudaVersion(llvm::VersionTuple Version) {
62 for (auto *I = CudaNameVersionMap; I->Version != CudaVersion::UNKNOWN; ++I)
63 if (I->TVersion == Version)
65 return CudaVersion::UNKNOWN;
69 struct CudaArchToStringMap {
71 const char *arch_name;
72 const char *virtual_arch_name;
77 { CudaArch::SM_##sm, "sm_" #sm, ca }
78 #define SM(sm) SM2(sm, "compute_" #sm)
80 { CudaArch::GFX##gpu, "gfx" #gpu, "compute_amdgcn" }
81 static const CudaArchToStringMap arch_names[] = {
83 {CudaArch::UNUSED, "", ""},
84 SM2(20, "compute_20"), SM2(21, "compute_20"), // Fermi
85 SM(30), SM(32), SM(35), SM(37), // Kepler
86 SM(50), SM(52), SM(53), // Maxwell
87 SM(60), SM(61), SM(62), // Pascal
88 SM(70), SM(72), // Volta
90 SM(80), SM(86), // Ampere
91 SM(87), // Jetson/Drive AGX Orin
92 SM(89), // Ada Lovelace
117 GFX(1010), // gfx1010
118 GFX(1011), // gfx1011
119 GFX(1012), // gfx1012
120 GFX(1013), // gfx1013
121 GFX(1030), // gfx1030
122 GFX(1031), // gfx1031
123 GFX(1032), // gfx1032
124 GFX(1033), // gfx1033
125 GFX(1034), // gfx1034
126 GFX(1035), // gfx1035
127 GFX(1036), // gfx1036
128 GFX(1100), // gfx1100
129 GFX(1101), // gfx1101
130 GFX(1102), // gfx1102
131 GFX(1103), // gfx1103
132 {CudaArch::Generic, "generic", ""},
139 const char *CudaArchToString(CudaArch A) {
140 auto result = std::find_if(
141 std::begin(arch_names), std::end(arch_names),
142 [A](const CudaArchToStringMap &map) { return A == map.arch; });
143 if (result == std::end(arch_names))
145 return result->arch_name;
148 const char *CudaArchToVirtualArchString(CudaArch A) {
149 auto result = std::find_if(
150 std::begin(arch_names), std::end(arch_names),
151 [A](const CudaArchToStringMap &map) { return A == map.arch; });
152 if (result == std::end(arch_names))
154 return result->virtual_arch_name;
157 CudaArch StringToCudaArch(llvm::StringRef S) {
158 auto result = std::find_if(
159 std::begin(arch_names), std::end(arch_names),
160 [S](const CudaArchToStringMap &map) { return S == map.arch_name; });
161 if (result == std::end(arch_names))
162 return CudaArch::UNKNOWN;
166 CudaVersion MinVersionForCudaArch(CudaArch A) {
167 if (A == CudaArch::UNKNOWN)
168 return CudaVersion::UNKNOWN;
170 // AMD GPUs do not depend on CUDA versions.
172 return CudaVersion::CUDA_70;
175 case CudaArch::SM_20:
176 case CudaArch::SM_21:
177 case CudaArch::SM_30:
178 case CudaArch::SM_32:
179 case CudaArch::SM_35:
180 case CudaArch::SM_37:
181 case CudaArch::SM_50:
182 case CudaArch::SM_52:
183 case CudaArch::SM_53:
184 return CudaVersion::CUDA_70;
185 case CudaArch::SM_60:
186 case CudaArch::SM_61:
187 case CudaArch::SM_62:
188 return CudaVersion::CUDA_80;
189 case CudaArch::SM_70:
190 return CudaVersion::CUDA_90;
191 case CudaArch::SM_72:
192 return CudaVersion::CUDA_91;
193 case CudaArch::SM_75:
194 return CudaVersion::CUDA_100;
195 case CudaArch::SM_80:
196 return CudaVersion::CUDA_110;
197 case CudaArch::SM_86:
198 return CudaVersion::CUDA_111;
199 case CudaArch::SM_87:
200 return CudaVersion::CUDA_114;
201 case CudaArch::SM_89:
202 case CudaArch::SM_90:
203 return CudaVersion::CUDA_118;
205 llvm_unreachable("invalid enum");
209 CudaVersion MaxVersionForCudaArch(CudaArch A) {
210 // AMD GPUs do not depend on CUDA versions.
212 return CudaVersion::NEW;
215 case CudaArch::UNKNOWN:
216 return CudaVersion::UNKNOWN;
217 case CudaArch::SM_20:
218 case CudaArch::SM_21:
219 return CudaVersion::CUDA_80;
220 case CudaArch::SM_30:
221 return CudaVersion::CUDA_110;
223 return CudaVersion::NEW;
227 bool CudaFeatureEnabled(llvm::VersionTuple Version, CudaFeature Feature) {
228 return CudaFeatureEnabled(ToCudaVersion(Version), Feature);
231 bool CudaFeatureEnabled(CudaVersion Version, CudaFeature Feature) {
233 case CudaFeature::CUDA_USES_NEW_LAUNCH:
234 return Version >= CudaVersion::CUDA_92;
235 case CudaFeature::CUDA_USES_FATBIN_REGISTER_END:
236 return Version >= CudaVersion::CUDA_101;
238 llvm_unreachable("Unknown CUDA feature.");