1 //===--- AMDGPUMetadata.h ---------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 /// AMDGPU metadata definitions and in-memory representations.
14 //===----------------------------------------------------------------------===//
16 #ifndef LLVM_SUPPORT_AMDGPUMETADATA_H
17 #define LLVM_SUPPORT_AMDGPUMETADATA_H
21 #include <system_error>
27 //===----------------------------------------------------------------------===//
29 //===----------------------------------------------------------------------===//
32 /// HSA metadata major version.
33 constexpr uint32_t VersionMajor = 1;
34 /// HSA metadata minor version.
35 constexpr uint32_t VersionMinor = 0;
37 /// HSA metadata beginning assembler directive.
38 constexpr char AssemblerDirectiveBegin[] = ".amd_amdgpu_hsa_metadata";
39 /// HSA metadata ending assembler directive.
40 constexpr char AssemblerDirectiveEnd[] = ".end_amd_amdgpu_hsa_metadata";
42 /// Access qualifiers.
43 enum class AccessQualifier : uint8_t {
51 /// Address space qualifiers.
52 enum class AddressSpaceQualifier : uint8_t {
63 enum class ValueKind : uint8_t {
66 DynamicSharedPointer = 2,
71 HiddenGlobalOffsetX = 7,
72 HiddenGlobalOffsetY = 8,
73 HiddenGlobalOffsetZ = 9,
75 HiddenPrintfBuffer = 11,
76 HiddenDefaultQueue = 12,
77 HiddenCompletionAction = 13,
82 enum class ValueType : uint8_t {
98 //===----------------------------------------------------------------------===//
100 //===----------------------------------------------------------------------===//
103 //===----------------------------------------------------------------------===//
104 // Kernel Attributes Metadata.
105 //===----------------------------------------------------------------------===//
109 /// Key for Kernel::Attr::Metadata::mReqdWorkGroupSize.
110 constexpr char ReqdWorkGroupSize[] = "ReqdWorkGroupSize";
111 /// Key for Kernel::Attr::Metadata::mWorkGroupSizeHint.
112 constexpr char WorkGroupSizeHint[] = "WorkGroupSizeHint";
113 /// Key for Kernel::Attr::Metadata::mVecTypeHint.
114 constexpr char VecTypeHint[] = "VecTypeHint";
115 /// Key for Kernel::Attr::Metadata::mRuntimeHandle.
116 constexpr char RuntimeHandle[] = "RuntimeHandle";
117 } // end namespace Key
119 /// In-memory representation of kernel attributes metadata.
120 struct Metadata final {
121 /// 'reqd_work_group_size' attribute. Optional.
122 std::vector<uint32_t> mReqdWorkGroupSize = std::vector<uint32_t>();
123 /// 'work_group_size_hint' attribute. Optional.
124 std::vector<uint32_t> mWorkGroupSizeHint = std::vector<uint32_t>();
125 /// 'vec_type_hint' attribute. Optional.
126 std::string mVecTypeHint = std::string();
127 /// External symbol created by runtime to store the kernel address
128 /// for enqueued blocks.
129 std::string mRuntimeHandle = std::string();
131 /// Default constructor.
132 Metadata() = default;
134 /// \returns True if kernel attributes metadata is empty, false otherwise.
139 /// \returns True if kernel attributes metadata is not empty, false otherwise.
140 bool notEmpty() const {
141 return !mReqdWorkGroupSize.empty() || !mWorkGroupSizeHint.empty() ||
142 !mVecTypeHint.empty() || !mRuntimeHandle.empty();
146 } // end namespace Attrs
148 //===----------------------------------------------------------------------===//
149 // Kernel Argument Metadata.
150 //===----------------------------------------------------------------------===//
154 /// Key for Kernel::Arg::Metadata::mName.
155 constexpr char Name[] = "Name";
156 /// Key for Kernel::Arg::Metadata::mTypeName.
157 constexpr char TypeName[] = "TypeName";
158 /// Key for Kernel::Arg::Metadata::mSize.
159 constexpr char Size[] = "Size";
160 /// Key for Kernel::Arg::Metadata::mAlign.
161 constexpr char Align[] = "Align";
162 /// Key for Kernel::Arg::Metadata::mValueKind.
163 constexpr char ValueKind[] = "ValueKind";
164 /// Key for Kernel::Arg::Metadata::mValueType.
165 constexpr char ValueType[] = "ValueType";
166 /// Key for Kernel::Arg::Metadata::mPointeeAlign.
167 constexpr char PointeeAlign[] = "PointeeAlign";
168 /// Key for Kernel::Arg::Metadata::mAddrSpaceQual.
169 constexpr char AddrSpaceQual[] = "AddrSpaceQual";
170 /// Key for Kernel::Arg::Metadata::mAccQual.
171 constexpr char AccQual[] = "AccQual";
172 /// Key for Kernel::Arg::Metadata::mActualAccQual.
173 constexpr char ActualAccQual[] = "ActualAccQual";
174 /// Key for Kernel::Arg::Metadata::mIsConst.
175 constexpr char IsConst[] = "IsConst";
176 /// Key for Kernel::Arg::Metadata::mIsRestrict.
177 constexpr char IsRestrict[] = "IsRestrict";
178 /// Key for Kernel::Arg::Metadata::mIsVolatile.
179 constexpr char IsVolatile[] = "IsVolatile";
180 /// Key for Kernel::Arg::Metadata::mIsPipe.
181 constexpr char IsPipe[] = "IsPipe";
182 } // end namespace Key
184 /// In-memory representation of kernel argument metadata.
185 struct Metadata final {
187 std::string mName = std::string();
188 /// Type name. Optional.
189 std::string mTypeName = std::string();
190 /// Size in bytes. Required.
192 /// Alignment in bytes. Required.
194 /// Value kind. Required.
195 ValueKind mValueKind = ValueKind::Unknown;
196 /// Value type. Required.
197 ValueType mValueType = ValueType::Unknown;
198 /// Pointee alignment in bytes. Optional.
199 uint32_t mPointeeAlign = 0;
200 /// Address space qualifier. Optional.
201 AddressSpaceQualifier mAddrSpaceQual = AddressSpaceQualifier::Unknown;
202 /// Access qualifier. Optional.
203 AccessQualifier mAccQual = AccessQualifier::Unknown;
204 /// Actual access qualifier. Optional.
205 AccessQualifier mActualAccQual = AccessQualifier::Unknown;
206 /// True if 'const' qualifier is specified. Optional.
207 bool mIsConst = false;
208 /// True if 'restrict' qualifier is specified. Optional.
209 bool mIsRestrict = false;
210 /// True if 'volatile' qualifier is specified. Optional.
211 bool mIsVolatile = false;
212 /// True if 'pipe' qualifier is specified. Optional.
213 bool mIsPipe = false;
215 /// Default constructor.
216 Metadata() = default;
219 } // end namespace Arg
221 //===----------------------------------------------------------------------===//
222 // Kernel Code Properties Metadata.
223 //===----------------------------------------------------------------------===//
224 namespace CodeProps {
227 /// Key for Kernel::CodeProps::Metadata::mKernargSegmentSize.
228 constexpr char KernargSegmentSize[] = "KernargSegmentSize";
229 /// Key for Kernel::CodeProps::Metadata::mGroupSegmentFixedSize.
230 constexpr char GroupSegmentFixedSize[] = "GroupSegmentFixedSize";
231 /// Key for Kernel::CodeProps::Metadata::mPrivateSegmentFixedSize.
232 constexpr char PrivateSegmentFixedSize[] = "PrivateSegmentFixedSize";
233 /// Key for Kernel::CodeProps::Metadata::mKernargSegmentAlign.
234 constexpr char KernargSegmentAlign[] = "KernargSegmentAlign";
235 /// Key for Kernel::CodeProps::Metadata::mWavefrontSize.
236 constexpr char WavefrontSize[] = "WavefrontSize";
237 /// Key for Kernel::CodeProps::Metadata::mNumSGPRs.
238 constexpr char NumSGPRs[] = "NumSGPRs";
239 /// Key for Kernel::CodeProps::Metadata::mNumVGPRs.
240 constexpr char NumVGPRs[] = "NumVGPRs";
241 /// Key for Kernel::CodeProps::Metadata::mMaxFlatWorkGroupSize.
242 constexpr char MaxFlatWorkGroupSize[] = "MaxFlatWorkGroupSize";
243 /// Key for Kernel::CodeProps::Metadata::mIsDynamicCallStack.
244 constexpr char IsDynamicCallStack[] = "IsDynamicCallStack";
245 /// Key for Kernel::CodeProps::Metadata::mIsXNACKEnabled.
246 constexpr char IsXNACKEnabled[] = "IsXNACKEnabled";
247 /// Key for Kernel::CodeProps::Metadata::mNumSpilledSGPRs.
248 constexpr char NumSpilledSGPRs[] = "NumSpilledSGPRs";
249 /// Key for Kernel::CodeProps::Metadata::mNumSpilledVGPRs.
250 constexpr char NumSpilledVGPRs[] = "NumSpilledVGPRs";
251 } // end namespace Key
253 /// In-memory representation of kernel code properties metadata.
254 struct Metadata final {
255 /// Size in bytes of the kernarg segment memory. Kernarg segment memory
256 /// holds the values of the arguments to the kernel. Required.
257 uint64_t mKernargSegmentSize = 0;
258 /// Size in bytes of the group segment memory required by a workgroup.
259 /// This value does not include any dynamically allocated group segment memory
260 /// that may be added when the kernel is dispatched. Required.
261 uint32_t mGroupSegmentFixedSize = 0;
262 /// Size in bytes of the private segment memory required by a workitem.
263 /// Private segment memory includes arg, spill and private segments. Required.
264 uint32_t mPrivateSegmentFixedSize = 0;
265 /// Maximum byte alignment of variables used by the kernel in the
266 /// kernarg memory segment. Required.
267 uint32_t mKernargSegmentAlign = 0;
268 /// Wavefront size. Required.
269 uint32_t mWavefrontSize = 0;
270 /// Total number of SGPRs used by a wavefront. Optional.
271 uint16_t mNumSGPRs = 0;
272 /// Total number of VGPRs used by a workitem. Optional.
273 uint16_t mNumVGPRs = 0;
274 /// Maximum flat work-group size supported by the kernel. Optional.
275 uint32_t mMaxFlatWorkGroupSize = 0;
276 /// True if the generated machine code is using a dynamically sized
277 /// call stack. Optional.
278 bool mIsDynamicCallStack = false;
279 /// True if the generated machine code is capable of supporting XNACK.
281 bool mIsXNACKEnabled = false;
282 /// Number of SGPRs spilled by a wavefront. Optional.
283 uint16_t mNumSpilledSGPRs = 0;
284 /// Number of VGPRs spilled by a workitem. Optional.
285 uint16_t mNumSpilledVGPRs = 0;
287 /// Default constructor.
288 Metadata() = default;
290 /// \returns True if kernel code properties metadata is empty, false
296 /// \returns True if kernel code properties metadata is not empty, false
298 bool notEmpty() const {
303 } // end namespace CodeProps
305 //===----------------------------------------------------------------------===//
306 // Kernel Debug Properties Metadata.
307 //===----------------------------------------------------------------------===//
308 namespace DebugProps {
311 /// Key for Kernel::DebugProps::Metadata::mDebuggerABIVersion.
312 constexpr char DebuggerABIVersion[] = "DebuggerABIVersion";
313 /// Key for Kernel::DebugProps::Metadata::mReservedNumVGPRs.
314 constexpr char ReservedNumVGPRs[] = "ReservedNumVGPRs";
315 /// Key for Kernel::DebugProps::Metadata::mReservedFirstVGPR.
316 constexpr char ReservedFirstVGPR[] = "ReservedFirstVGPR";
317 /// Key for Kernel::DebugProps::Metadata::mPrivateSegmentBufferSGPR.
318 constexpr char PrivateSegmentBufferSGPR[] = "PrivateSegmentBufferSGPR";
320 /// Kernel::DebugProps::Metadata::mWavefrontPrivateSegmentOffsetSGPR.
321 constexpr char WavefrontPrivateSegmentOffsetSGPR[] =
322 "WavefrontPrivateSegmentOffsetSGPR";
323 } // end namespace Key
325 /// In-memory representation of kernel debug properties metadata.
326 struct Metadata final {
327 /// Debugger ABI version. Optional.
328 std::vector<uint32_t> mDebuggerABIVersion = std::vector<uint32_t>();
329 /// Consecutive number of VGPRs reserved for debugger use. Must be 0 if
330 /// mDebuggerABIVersion is not set. Optional.
331 uint16_t mReservedNumVGPRs = 0;
332 /// First fixed VGPR reserved. Must be uint16_t(-1) if
333 /// mDebuggerABIVersion is not set or mReservedFirstVGPR is 0. Optional.
334 uint16_t mReservedFirstVGPR = uint16_t(-1);
335 /// Fixed SGPR of the first of 4 SGPRs used to hold the scratch V# used
336 /// for the entire kernel execution. Must be uint16_t(-1) if
337 /// mDebuggerABIVersion is not set or SGPR not used or not known. Optional.
338 uint16_t mPrivateSegmentBufferSGPR = uint16_t(-1);
339 /// Fixed SGPR used to hold the wave scratch offset for the entire
340 /// kernel execution. Must be uint16_t(-1) if mDebuggerABIVersion is not set
341 /// or SGPR is not used or not known. Optional.
342 uint16_t mWavefrontPrivateSegmentOffsetSGPR = uint16_t(-1);
344 /// Default constructor.
345 Metadata() = default;
347 /// \returns True if kernel debug properties metadata is empty, false
353 /// \returns True if kernel debug properties metadata is not empty, false
355 bool notEmpty() const {
356 return !mDebuggerABIVersion.empty();
360 } // end namespace DebugProps
363 /// Key for Kernel::Metadata::mName.
364 constexpr char Name[] = "Name";
365 /// Key for Kernel::Metadata::mSymbolName.
366 constexpr char SymbolName[] = "SymbolName";
367 /// Key for Kernel::Metadata::mLanguage.
368 constexpr char Language[] = "Language";
369 /// Key for Kernel::Metadata::mLanguageVersion.
370 constexpr char LanguageVersion[] = "LanguageVersion";
371 /// Key for Kernel::Metadata::mAttrs.
372 constexpr char Attrs[] = "Attrs";
373 /// Key for Kernel::Metadata::mArgs.
374 constexpr char Args[] = "Args";
375 /// Key for Kernel::Metadata::mCodeProps.
376 constexpr char CodeProps[] = "CodeProps";
377 /// Key for Kernel::Metadata::mDebugProps.
378 constexpr char DebugProps[] = "DebugProps";
379 } // end namespace Key
381 /// In-memory representation of kernel metadata.
382 struct Metadata final {
383 /// Kernel source name. Required.
384 std::string mName = std::string();
385 /// Kernel descriptor name. Required.
386 std::string mSymbolName = std::string();
387 /// Language. Optional.
388 std::string mLanguage = std::string();
389 /// Language version. Optional.
390 std::vector<uint32_t> mLanguageVersion = std::vector<uint32_t>();
391 /// Attributes metadata. Optional.
392 Attrs::Metadata mAttrs = Attrs::Metadata();
393 /// Arguments metadata. Optional.
394 std::vector<Arg::Metadata> mArgs = std::vector<Arg::Metadata>();
395 /// Code properties metadata. Optional.
396 CodeProps::Metadata mCodeProps = CodeProps::Metadata();
397 /// Debug properties metadata. Optional.
398 DebugProps::Metadata mDebugProps = DebugProps::Metadata();
400 /// Default constructor.
401 Metadata() = default;
404 } // end namespace Kernel
407 /// Key for HSA::Metadata::mVersion.
408 constexpr char Version[] = "Version";
409 /// Key for HSA::Metadata::mPrintf.
410 constexpr char Printf[] = "Printf";
411 /// Key for HSA::Metadata::mKernels.
412 constexpr char Kernels[] = "Kernels";
413 } // end namespace Key
415 /// In-memory representation of HSA metadata.
416 struct Metadata final {
417 /// HSA metadata version. Required.
418 std::vector<uint32_t> mVersion = std::vector<uint32_t>();
419 /// Printf metadata. Optional.
420 std::vector<std::string> mPrintf = std::vector<std::string>();
421 /// Kernels metadata. Required.
422 std::vector<Kernel::Metadata> mKernels = std::vector<Kernel::Metadata>();
424 /// Default constructor.
425 Metadata() = default;
428 /// Converts \p String to \p HSAMetadata.
429 std::error_code fromString(std::string String, Metadata &HSAMetadata);
431 /// Converts \p HSAMetadata to \p String.
432 std::error_code toString(Metadata HSAMetadata, std::string &String);
434 } // end namespace HSAMD
436 //===----------------------------------------------------------------------===//
438 //===----------------------------------------------------------------------===//
441 /// PAL metadata assembler directive.
442 constexpr char AssemblerDirective[] = ".amd_amdgpu_pal_metadata";
444 /// PAL metadata keys.
445 enum Key : uint32_t {
446 LS_NUM_USED_VGPRS = 0x10000021,
447 HS_NUM_USED_VGPRS = 0x10000022,
448 ES_NUM_USED_VGPRS = 0x10000023,
449 GS_NUM_USED_VGPRS = 0x10000024,
450 VS_NUM_USED_VGPRS = 0x10000025,
451 PS_NUM_USED_VGPRS = 0x10000026,
452 CS_NUM_USED_VGPRS = 0x10000027,
454 LS_NUM_USED_SGPRS = 0x10000028,
455 HS_NUM_USED_SGPRS = 0x10000029,
456 ES_NUM_USED_SGPRS = 0x1000002a,
457 GS_NUM_USED_SGPRS = 0x1000002b,
458 VS_NUM_USED_SGPRS = 0x1000002c,
459 PS_NUM_USED_SGPRS = 0x1000002d,
460 CS_NUM_USED_SGPRS = 0x1000002e,
462 LS_SCRATCH_SIZE = 0x10000044,
463 HS_SCRATCH_SIZE = 0x10000045,
464 ES_SCRATCH_SIZE = 0x10000046,
465 GS_SCRATCH_SIZE = 0x10000047,
466 VS_SCRATCH_SIZE = 0x10000048,
467 PS_SCRATCH_SIZE = 0x10000049,
468 CS_SCRATCH_SIZE = 0x1000004a
471 /// PAL metadata represented as a vector.
472 typedef std::vector<uint32_t> Metadata;
474 /// Converts \p PALMetadata to \p String.
475 std::error_code toString(const Metadata &PALMetadata, std::string &String);
477 } // end namespace PALMD
478 } // end namespace AMDGPU
479 } // end namespace llvm
481 #endif // LLVM_SUPPORT_AMDGPUMETADATA_H