Line data    Source code

       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        1950 :     SIProgramInfo() = default;
      73             : };
      74             : 
      75             : } // namespace llvm
      76             : 
      77             : #endif // LLVM_LIB_TARGET_AMDGPU_SIPROGRAMINFO_H