lib/Target/AMDGPU/SIProgramInfo.h

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