lib/Target/AMDGPU/SIProgramInfo.h

   1 //===--- SIProgramInfo.h ----------------------------------------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 /// \file
  11 /// Defines struct to track resource usage for kernels and entry functions.
  12 ///
  13 //
  14 //===----------------------------------------------------------------------===//
  15
  16 #ifndef LLVM_LIB_TARGET_AMDGPU_SIPROGRAMINFO_H
  17 #define LLVM_LIB_TARGET_AMDGPU_SIPROGRAMINFO_H
  18
  19 namespace llvm {
  20
  21 /// Track resource usage for kernels / entry functions.
  22 struct SIProgramInfo {
  23     // Fields set in PGM_RSRC1 pm4 packet.
  24     uint32_t VGPRBlocks = 0;
  25     uint32_t SGPRBlocks = 0;
  26     uint32_t Priority = 0;
  27     uint32_t FloatMode = 0;
  28     uint32_t Priv = 0;
  29     uint32_t DX10Clamp = 0;
  30     uint32_t DebugMode = 0;
  31     uint32_t IEEEMode = 0;
  32     uint64_t ScratchSize = 0;
  33
  34     uint64_t ComputePGMRSrc1 = 0;
  35
  36     // Fields set in PGM_RSRC2 pm4 packet.
  37     uint32_t LDSBlocks = 0;
  38     uint32_t ScratchBlocks = 0;
  39
  40     uint64_t ComputePGMRSrc2 = 0;
  41
  42     uint32_t NumVGPR = 0;
  43     uint32_t NumSGPR = 0;
  44     uint32_t LDSSize = 0;
  45     bool FlatUsed = false;
  46
  47     // Number of SGPRs that meets number of waves per execution unit request.
  48     uint32_t NumSGPRsForWavesPerEU = 0;
  49
  50     // Number of VGPRs that meets number of waves per execution unit request.
  51     uint32_t NumVGPRsForWavesPerEU = 0;
  52
  53     // Fixed SGPR number used to hold wave scratch offset for entire kernel
  54     // execution, or std::numeric_limits<uint16_t>::max() if the register is not
  55     // used or not known.
  56     uint16_t DebuggerWavefrontPrivateSegmentOffsetSGPR =
  57         std::numeric_limits<uint16_t>::max();
  58
  59     // Fixed SGPR number of the first 4 SGPRs used to hold scratch V# for entire
  60     // kernel execution, or std::numeric_limits<uint16_t>::max() if the register
  61     // is not used or not known.
  62     uint16_t DebuggerPrivateSegmentBufferSGPR =
  63         std::numeric_limits<uint16_t>::max();
  64
  65     // Whether there is recursion, dynamic allocas, indirect calls or some other
  66     // reason there may be statically unknown stack usage.
  67     bool DynamicCallStack = false;
  68
  69     // Bonus information for debugging.
  70     bool VCCUsed = false;
  71
  72     SIProgramInfo() = default;
  73 };
  74
  75 } // namespace llvm
  76
  77 #endif // LLVM_LIB_TARGET_AMDGPU_SIPROGRAMINFO_H