1 //===--- SIProgramInfo.h ----------------------------------------*- 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 /// \file 10 /// Defines struct to track resource usage and hardware flags for kernels and 11 /// entry functions. 12 /// 13 // 14 //===----------------------------------------------------------------------===// 15 16 #ifndef LLVM_LIB_TARGET_AMDGPU_SIPROGRAMINFO_H 17 #define LLVM_LIB_TARGET_AMDGPU_SIPROGRAMINFO_H 18 19 #include "llvm/IR/CallingConv.h" 20 #include <cstdint> 21 22 namespace llvm { 23 24 /// Track resource usage for kernels / entry functions. 25 struct SIProgramInfo { 26 // Fields set in PGM_RSRC1 pm4 packet. 27 uint32_t VGPRBlocks = 0; 28 uint32_t SGPRBlocks = 0; 29 uint32_t Priority = 0; 30 uint32_t FloatMode = 0; 31 uint32_t Priv = 0; 32 uint32_t DX10Clamp = 0; 33 uint32_t DebugMode = 0; 34 uint32_t IEEEMode = 0; 35 uint32_t WgpMode = 0; // GFX10+ 36 uint32_t MemOrdered = 0; // GFX10+ 37 uint64_t ScratchSize = 0; 38 39 // Fields set in PGM_RSRC2 pm4 packet. 40 uint32_t LDSBlocks = 0; 41 uint32_t ScratchBlocks = 0; 42 43 uint64_t ComputePGMRSrc2 = 0; 44 45 uint32_t NumVGPR = 0; 46 uint32_t NumArchVGPR = 0; 47 uint32_t NumAccVGPR = 0; 48 uint32_t NumSGPR = 0; 49 uint32_t LDSSize = 0; 50 bool FlatUsed = false; 51 52 // Number of SGPRs that meets number of waves per execution unit request. 53 uint32_t NumSGPRsForWavesPerEU = 0; 54 55 // Number of VGPRs that meets number of waves per execution unit request. 56 uint32_t NumVGPRsForWavesPerEU = 0; 57 58 // Final occupancy. 59 uint32_t Occupancy = 0; 60 61 // Whether there is recursion, dynamic allocas, indirect calls or some other 62 // reason there may be statically unknown stack usage. 63 bool DynamicCallStack = false; 64 65 // Bonus information for debugging. 66 bool VCCUsed = false; 67 68 SIProgramInfo() = default; 69 70 /// Compute the value of the ComputePGMRsrc1 register. 71 uint64_t getComputePGMRSrc1() const; 72 uint64_t getPGMRSrc1(CallingConv::ID CC) const; 73 }; 74 75 } // namespace llvm 76 77 #endif // LLVM_LIB_TARGET_AMDGPU_SIPROGRAMINFO_H 78