1 | //===-- AMDGPUTargetStreamer.h - AMDGPU Target Streamer --------*- C++ -*--===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | |
9 | #ifndef LLVM_LIB_TARGET_AMDGPU_MCTARGETDESC_AMDGPUTARGETSTREAMER_H |
10 | #define LLVM_LIB_TARGET_AMDGPU_MCTARGETDESC_AMDGPUTARGETSTREAMER_H |
11 | |
12 | #include "Utils/AMDGPUBaseInfo.h" |
13 | #include "Utils/AMDGPUPALMetadata.h" |
14 | #include "llvm/MC/MCStreamer.h" |
15 | |
16 | namespace llvm { |
17 | |
18 | class MCELFStreamer; |
19 | class MCSymbol; |
20 | class formatted_raw_ostream; |
21 | |
22 | namespace AMDGPU { |
23 | |
24 | struct AMDGPUMCKernelCodeT; |
25 | struct MCKernelDescriptor; |
26 | namespace HSAMD { |
27 | struct Metadata; |
28 | } |
29 | } // namespace AMDGPU |
30 | |
31 | class AMDGPUTargetStreamer : public MCTargetStreamer { |
32 | AMDGPUPALMetadata PALMetadata; |
33 | |
34 | protected: |
35 | // TODO: Move HSAMetadataStream to AMDGPUTargetStreamer. |
36 | std::optional<AMDGPU::IsaInfo::AMDGPUTargetID> TargetID; |
37 | unsigned CodeObjectVersion; |
38 | |
39 | MCContext &getContext() const { return Streamer.getContext(); } |
40 | |
41 | public: |
42 | AMDGPUTargetStreamer(MCStreamer &S) |
43 | : MCTargetStreamer(S), |
44 | // Assume the default COV for now, EmitDirectiveAMDHSACodeObjectVersion |
45 | // will update this if it is encountered. |
46 | CodeObjectVersion(AMDGPU::getDefaultAMDHSACodeObjectVersion()) {} |
47 | |
48 | AMDGPUPALMetadata *getPALMetadata() { return &PALMetadata; } |
49 | |
50 | virtual void EmitDirectiveAMDGCNTarget(){}; |
51 | |
52 | virtual void EmitDirectiveAMDHSACodeObjectVersion(unsigned COV) { |
53 | CodeObjectVersion = COV; |
54 | } |
55 | |
56 | virtual void EmitAMDKernelCodeT(AMDGPU::AMDGPUMCKernelCodeT &) {}; |
57 | |
58 | virtual void EmitAMDGPUSymbolType(StringRef SymbolName, unsigned Type){}; |
59 | |
60 | virtual void emitAMDGPULDS(MCSymbol *Symbol, unsigned Size, Align Alignment) { |
61 | } |
62 | |
63 | virtual void EmitMCResourceInfo( |
64 | const MCSymbol *NumVGPR, const MCSymbol *NumAGPR, |
65 | const MCSymbol *NumExplicitSGPR, const MCSymbol *PrivateSegmentSize, |
66 | const MCSymbol *UsesVCC, const MCSymbol *UsesFlatScratch, |
67 | const MCSymbol *HasDynamicallySizedStack, const MCSymbol *HasRecursion, |
68 | const MCSymbol *HasIndirectCall) {}; |
69 | |
70 | virtual void EmitMCResourceMaximums(const MCSymbol *MaxVGPR, |
71 | const MCSymbol *MaxAGPR, |
72 | const MCSymbol *MaxSGPR) {}; |
73 | |
74 | /// \returns True on success, false on failure. |
75 | virtual bool EmitISAVersion() { return true; } |
76 | |
77 | /// \returns True on success, false on failure. |
78 | virtual bool EmitHSAMetadataV3(StringRef HSAMetadataString); |
79 | |
80 | /// Emit HSA Metadata |
81 | /// |
82 | /// When \p Strict is true, known metadata elements must already be |
83 | /// well-typed. When \p Strict is false, known types are inferred and |
84 | /// the \p HSAMetadata structure is updated with the correct types. |
85 | /// |
86 | /// \returns True on success, false on failure. |
87 | virtual bool EmitHSAMetadata(msgpack::Document &HSAMetadata, bool Strict) { |
88 | return true; |
89 | } |
90 | |
91 | /// \returns True on success, false on failure. |
92 | virtual bool EmitHSAMetadata(const AMDGPU::HSAMD::Metadata &HSAMetadata) { |
93 | return true; |
94 | } |
95 | |
96 | /// \returns True on success, false on failure. |
97 | virtual bool EmitCodeEnd(const MCSubtargetInfo &STI) { return true; } |
98 | |
99 | virtual void |
100 | EmitAmdhsaKernelDescriptor(const MCSubtargetInfo &STI, StringRef KernelName, |
101 | const AMDGPU::MCKernelDescriptor &KernelDescriptor, |
102 | const MCExpr *NextVGPR, const MCExpr *NextSGPR, |
103 | const MCExpr *ReserveVCC, |
104 | const MCExpr *ReserveFlatScr) {} |
105 | |
106 | static StringRef getArchNameFromElfMach(unsigned ElfMach); |
107 | static unsigned getElfMach(StringRef GPU); |
108 | |
109 | const std::optional<AMDGPU::IsaInfo::AMDGPUTargetID> &getTargetID() const { |
110 | return TargetID; |
111 | } |
112 | std::optional<AMDGPU::IsaInfo::AMDGPUTargetID> &getTargetID() { |
113 | return TargetID; |
114 | } |
115 | void initializeTargetID(const MCSubtargetInfo &STI) { |
116 | assert(TargetID == std::nullopt && "TargetID can only be initialized once" ); |
117 | TargetID.emplace(args: STI); |
118 | } |
119 | void initializeTargetID(const MCSubtargetInfo &STI, StringRef FeatureString) { |
120 | initializeTargetID(STI); |
121 | |
122 | assert(getTargetID() != std::nullopt && "TargetID is None" ); |
123 | getTargetID()->setTargetIDFromFeaturesString(FeatureString); |
124 | } |
125 | }; |
126 | |
127 | class AMDGPUTargetAsmStreamer final : public AMDGPUTargetStreamer { |
128 | formatted_raw_ostream &OS; |
129 | public: |
130 | AMDGPUTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS); |
131 | |
132 | void finish() override; |
133 | |
134 | void EmitDirectiveAMDGCNTarget() override; |
135 | |
136 | void EmitDirectiveAMDHSACodeObjectVersion(unsigned COV) override; |
137 | |
138 | void EmitAMDKernelCodeT(AMDGPU::AMDGPUMCKernelCodeT &) override; |
139 | |
140 | void EmitAMDGPUSymbolType(StringRef SymbolName, unsigned Type) override; |
141 | |
142 | void emitAMDGPULDS(MCSymbol *Sym, unsigned Size, Align Alignment) override; |
143 | |
144 | void EmitMCResourceInfo(const MCSymbol *NumVGPR, const MCSymbol *NumAGPR, |
145 | const MCSymbol *NumExplicitSGPR, |
146 | const MCSymbol *PrivateSegmentSize, |
147 | const MCSymbol *UsesVCC, |
148 | const MCSymbol *UsesFlatScratch, |
149 | const MCSymbol *HasDynamicallySizedStack, |
150 | const MCSymbol *HasRecursion, |
151 | const MCSymbol *HasIndirectCall) override; |
152 | |
153 | void EmitMCResourceMaximums(const MCSymbol *MaxVGPR, const MCSymbol *MaxAGPR, |
154 | const MCSymbol *MaxSGPR) override; |
155 | |
156 | /// \returns True on success, false on failure. |
157 | bool EmitISAVersion() override; |
158 | |
159 | /// \returns True on success, false on failure. |
160 | bool EmitHSAMetadata(msgpack::Document &HSAMetadata, bool Strict) override; |
161 | |
162 | /// \returns True on success, false on failure. |
163 | bool EmitCodeEnd(const MCSubtargetInfo &STI) override; |
164 | |
165 | void |
166 | EmitAmdhsaKernelDescriptor(const MCSubtargetInfo &STI, StringRef KernelName, |
167 | const AMDGPU::MCKernelDescriptor &KernelDescriptor, |
168 | const MCExpr *NextVGPR, const MCExpr *NextSGPR, |
169 | const MCExpr *ReserveVCC, |
170 | const MCExpr *ReserveFlatScr) override; |
171 | }; |
172 | |
173 | class AMDGPUTargetELFStreamer final : public AMDGPUTargetStreamer { |
174 | const MCSubtargetInfo &STI; |
175 | MCStreamer &Streamer; |
176 | |
177 | void EmitNote(StringRef Name, const MCExpr *DescSize, unsigned NoteType, |
178 | function_ref<void(MCELFStreamer &)> EmitDesc); |
179 | |
180 | unsigned getEFlags(); |
181 | |
182 | unsigned getEFlagsR600(); |
183 | unsigned getEFlagsAMDGCN(); |
184 | |
185 | unsigned getEFlagsUnknownOS(); |
186 | unsigned getEFlagsAMDHSA(); |
187 | unsigned getEFlagsAMDPAL(); |
188 | unsigned getEFlagsMesa3D(); |
189 | |
190 | unsigned getEFlagsV3(); |
191 | unsigned getEFlagsV4(); |
192 | unsigned getEFlagsV6(); |
193 | |
194 | public: |
195 | AMDGPUTargetELFStreamer(MCStreamer &S, const MCSubtargetInfo &STI); |
196 | |
197 | MCELFStreamer &getStreamer(); |
198 | |
199 | void finish() override; |
200 | |
201 | void EmitDirectiveAMDGCNTarget() override; |
202 | |
203 | void EmitAMDKernelCodeT(AMDGPU::AMDGPUMCKernelCodeT &) override; |
204 | |
205 | void EmitAMDGPUSymbolType(StringRef SymbolName, unsigned Type) override; |
206 | |
207 | void emitAMDGPULDS(MCSymbol *Sym, unsigned Size, Align Alignment) override; |
208 | |
209 | /// \returns True on success, false on failure. |
210 | bool EmitISAVersion() override; |
211 | |
212 | /// \returns True on success, false on failure. |
213 | bool EmitHSAMetadata(msgpack::Document &HSAMetadata, bool Strict) override; |
214 | |
215 | /// \returns True on success, false on failure. |
216 | bool EmitCodeEnd(const MCSubtargetInfo &STI) override; |
217 | |
218 | void |
219 | EmitAmdhsaKernelDescriptor(const MCSubtargetInfo &STI, StringRef KernelName, |
220 | const AMDGPU::MCKernelDescriptor &KernelDescriptor, |
221 | const MCExpr *NextVGPR, const MCExpr *NextSGPR, |
222 | const MCExpr *ReserveVCC, |
223 | const MCExpr *ReserveFlatScr) override; |
224 | }; |
225 | } |
226 | #endif |
227 | |