AMDGPU/SI: Update amd_kernel_code_t definition and add assembler support

Reviewers: arsenm

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10772

llvm-svn: 240839

8 files changed, 477 insertions, 199 deletions

diff --git a/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp b/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
index f8a2b56db20..709d7531d38 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
@@ -475,125 +475,28 @@ void AMDGPUAsmPrinter::EmitProgramInfoSI(const MachineFunction &MF,
 }
 
 void AMDGPUAsmPrinter::EmitAmdKernelCodeT(const MachineFunction &MF,
-                                        const SIProgramInfo &KernelInfo) const {
+                                         const SIProgramInfo &KernelInfo) const {
   const SIMachineFunctionInfo *MFI = MF.getInfo<SIMachineFunctionInfo>();
   const AMDGPUSubtarget &STM = MF.getSubtarget<AMDGPUSubtarget>();
   amd_kernel_code_t header;
 
-  memset(&header, 0, sizeof(header));
-
-  header.amd_code_version_major = AMD_CODE_VERSION_MAJOR;
-  header.amd_code_version_minor = AMD_CODE_VERSION_MINOR;
-
-  header.struct_byte_size = sizeof(amd_kernel_code_t);
-
-  header.target_chip = STM.getAmdKernelCodeChipID();
-
-  header.kernel_code_entry_byte_offset = (1ULL << MF.getAlignment());
+  AMDGPU::initDefaultAMDKernelCodeT(header, STM.getFeatureBits());
 
   header.compute_pgm_resource_registers =
       KernelInfo.ComputePGMRSrc1 |
       (KernelInfo.ComputePGMRSrc2 << 32);
+  header.code_properties =
+      AMD_CODE_PROPERTY_ENABLE_SGPR_KERNARG_SEGMENT_PTR |
+      AMD_CODE_PROPERTY_IS_PTR64;
 
-  // Code Properties:
-  header.code_properties = AMD_CODE_PROPERTY_ENABLE_SGPR_KERNARG_SEGMENT_PTR |
-                           AMD_CODE_PROPERTY_IS_PTR64;
-
-  if (KernelInfo.FlatUsed)
-    header.code_properties |= AMD_CODE_PROPERTY_ENABLE_SGPR_FLAT_SCRATCH_INIT;
-
-  if (KernelInfo.ScratchBlocks)
-    header.code_properties |= AMD_CODE_PROPERTY_ENABLE_SGPR_PRIVATE_SEGMENT_SIZE;
-
-  header.workitem_private_segment_byte_size = KernelInfo.ScratchSize;
-  header.workgroup_group_segment_byte_size = KernelInfo.LDSSize;
-
-  // MFI->ABIArgOffset is the number of bytes for the kernel arguments
-  // plus 36.  36 is the number of bytes reserved at the begining of the
-  // input buffer to store work-group size information.
-  // FIXME: We should be adding the size of the implicit arguments
-  // to this value.
   header.kernarg_segment_byte_size = MFI->ABIArgOffset;
-
   header.wavefront_sgpr_count = KernelInfo.NumSGPR;
   header.workitem_vgpr_count = KernelInfo.NumVGPR;
 
-  // FIXME: What values do I put for these alignments
-  header.kernarg_segment_alignment = 0;
-  header.group_segment_alignment = 0;
-  header.private_segment_alignment = 0;
-
-  header.code_type = 1; // HSA_EXT_CODE_KERNEL
-
-  header.wavefront_size = STM.getWavefrontSize();
-
-  MCSectionELF *VersionSection =
-      OutContext.getELFSection(".hsa.version", ELF::SHT_PROGBITS, 0);
-  OutStreamer->SwitchSection(VersionSection);
-  OutStreamer->EmitBytes(Twine("HSA Code Unit:" +
-                         Twine(header.hsail_version_major) + "." +
-                         Twine(header.hsail_version_minor) + ":" +
-                         "AMD:" +
-                         Twine(header.amd_code_version_major) + "." +
-                         Twine(header.amd_code_version_minor) +  ":" +
-                         "GFX8.1:0").str());
-
-  OutStreamer->SwitchSection(getObjFileLowering().getTextSection());
-
-  if (isVerbose()) {
-    OutStreamer->emitRawComment("amd_code_version_major = " +
-                                Twine(header.amd_code_version_major), false);
-    OutStreamer->emitRawComment("amd_code_version_minor = " +
-                                Twine(header.amd_code_version_minor), false);
-    OutStreamer->emitRawComment("struct_byte_size = " +
-                                Twine(header.struct_byte_size), false);
-    OutStreamer->emitRawComment("target_chip = " +
-                                Twine(header.target_chip), false);
-    OutStreamer->emitRawComment(" compute_pgm_rsrc1: " +
-                                Twine::utohexstr(KernelInfo.ComputePGMRSrc1),
-                                false);
-    OutStreamer->emitRawComment(" compute_pgm_rsrc2: " +
-                                Twine::utohexstr(KernelInfo.ComputePGMRSrc2),
-                                false);
-    OutStreamer->emitRawComment("enable_sgpr_private_segment_buffer = " +
-      Twine((bool)(header.code_properties &
-                   AMD_CODE_PROPERTY_ENABLE_SGPR_PRIVATE_SEGMENT_SIZE)), false);
-    OutStreamer->emitRawComment("enable_sgpr_kernarg_segment_ptr = " +
-      Twine((bool)(header.code_properties &
-                   AMD_CODE_PROPERTY_ENABLE_SGPR_KERNARG_SEGMENT_PTR)), false);
-    OutStreamer->emitRawComment("private_element_size = 2 ", false);
-    OutStreamer->emitRawComment("is_ptr64 = " +
-        Twine((bool)(header.code_properties & AMD_CODE_PROPERTY_IS_PTR64)), false);
-    OutStreamer->emitRawComment("workitem_private_segment_byte_size = " +
-                                Twine(header.workitem_private_segment_byte_size),
-                                false);
-    OutStreamer->emitRawComment("workgroup_group_segment_byte_size = " +
-                                Twine(header.workgroup_group_segment_byte_size),
-                                false);
-    OutStreamer->emitRawComment("gds_segment_byte_size = " +
-                                Twine(header.gds_segment_byte_size), false);
-    OutStreamer->emitRawComment("kernarg_segment_byte_size = " +
-                                Twine(header.kernarg_segment_byte_size), false);
-    OutStreamer->emitRawComment("wavefront_sgpr_count = " +
-                                Twine(header.wavefront_sgpr_count), false);
-    OutStreamer->emitRawComment("workitem_vgpr_count = " +
-                                Twine(header.workitem_vgpr_count), false);
-    OutStreamer->emitRawComment("code_type = " + Twine(header.code_type), false);
-    OutStreamer->emitRawComment("wavefront_size = " +
-                                Twine((int)header.wavefront_size), false);
-    OutStreamer->emitRawComment("optimization_level = " +
-                                Twine(header.optimization_level), false);
-    OutStreamer->emitRawComment("hsail_profile = " +
-                                Twine(header.hsail_profile), false);
-    OutStreamer->emitRawComment("hsail_machine_model = " +
-                                Twine(header.hsail_machine_model), false);
-    OutStreamer->emitRawComment("hsail_version_major = " +
-                                Twine(header.hsail_version_major), false);
-    OutStreamer->emitRawComment("hsail_version_minor = " +
-                                Twine(header.hsail_version_minor), false);
-  }
 
-  OutStreamer->EmitBytes(StringRef((char*)&header, sizeof(header)));
+  AMDGPUTargetStreamer *TS =
+      static_cast<AMDGPUTargetStreamer *>(OutStreamer->getTargetStreamer());
+  TS->EmitAMDKernelCodeT(header);
 }
 
 bool AMDGPUAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
diff --git a/llvm/lib/Target/AMDGPU/AMDKernelCodeT.h b/llvm/lib/Target/AMDGPU/AMDKernelCodeT.h
index eaffb854793..a9ba60c8cba 100644
--- a/llvm/lib/Target/AMDGPU/AMDKernelCodeT.h
+++ b/llvm/lib/Target/AMDGPU/AMDKernelCodeT.h
@@ -12,9 +12,12 @@
 #ifndef AMDKERNELCODET_H
 #define AMDKERNELCODET_H
 
+#include "llvm/MC/SubtargetFeature.h"
+
 #include <cstddef>
 #include <cstdint>
 
+#include "llvm/Support/Debug.h"
 //---------------------------------------------------------------------------//
 // AMD Kernel Code, and its dependencies                                     //
 //---------------------------------------------------------------------------//
@@ -142,7 +145,7 @@ enum amd_code_property_mask_t {
   /// the GPU flat scratch (SH_STATIC_MEM_CONFIG.ELEMENT_SIZE). This
   /// is generally DWORD.
   ///
-  /// Use values from the amd_element_byte_size_t enum.
+  /// uSE VALUES FROM THE AMD_ELEMENT_BYTE_SIZE_T ENUM.
   AMD_CODE_PROPERTY_PRIVATE_ELEMENT_SIZE_SHIFT = 11,
   AMD_CODE_PROPERTY_PRIVATE_ELEMENT_SIZE_WIDTH = 2,
   AMD_CODE_PROPERTY_PRIVATE_ELEMENT_SIZE = ((1 << AMD_CODE_PROPERTY_PRIVATE_ELEMENT_SIZE_WIDTH) - 1) << AMD_CODE_PROPERTY_PRIVATE_ELEMENT_SIZE_SHIFT,
@@ -171,7 +174,11 @@ enum amd_code_property_mask_t {
   /// Indicate if code generated has support for debugging.
   AMD_CODE_PROPERTY_IS_DEBUG_SUPPORTED_SHIFT = 15,
   AMD_CODE_PROPERTY_IS_DEBUG_SUPPORTED_WIDTH = 1,
-  AMD_CODE_PROPERTY_IS_DEBUG_SUPPORTED = ((1 << AMD_CODE_PROPERTY_IS_DEBUG_SUPPORTED_WIDTH) - 1) << AMD_CODE_PROPERTY_IS_DEBUG_SUPPORTED_SHIFT
+  AMD_CODE_PROPERTY_IS_DEBUG_SUPPORTED = ((1 << AMD_CODE_PROPERTY_IS_DEBUG_SUPPORTED_WIDTH) - 1) << AMD_CODE_PROPERTY_IS_DEBUG_SUPPORTED_SHIFT,
+
+  AMD_CODE_PROPERTY_IS_XNACK_SUPPORTED_SHIFT = 15,
+  AMD_CODE_PROPERTY_IS_XNACK_SUPPORTED_WIDTH = 1,
+  AMD_CODE_PROPERTY_IS_XNACK_SUPPORTED = ((1 << AMD_CODE_PROPERTY_IS_XNACK_SUPPORTED_WIDTH) - 1) << AMD_CODE_PROPERTY_IS_XNACK_SUPPORTED_SHIFT
 };
 
 /// @brief The hsa_ext_control_directives_t specifies the values for the HSAIL
@@ -369,7 +376,7 @@ typedef struct hsa_ext_control_directives_s {
 ///     Scratch Wave Offset must be added by the kernel code and moved to
 ///     SGPRn-4 for use as the FLAT SCRATCH BASE in flat memory instructions.
 ///
-///     The second SGPR is 32 bit byte size of a single work-item’s scratch
+///     The second SGPR is 32 bit byte size of a single work-item's scratch
 ///     memory usage. This is directly loaded from the dispatch packet Private
 ///     Segment Byte Size and rounded up to a multiple of DWORD.
 ///
@@ -385,7 +392,7 @@ typedef struct hsa_ext_control_directives_s {
 ///
 /// Private Segment Size (enable_sgpr_private_segment_size):
 ///   Number of User SGPR registers: 1. The 32 bit byte size of a single
-///   work-item’s scratch memory allocation. This is the value from the dispatch
+///   work-item's scratch memory allocation. This is the value from the dispatch
 ///   packet. Private Segment Byte Size rounded up by CP to a multiple of DWORD.
 ///
 ///   \todo [Does CP need to round this to >4 byte alignment?]
@@ -433,7 +440,7 @@ typedef struct hsa_ext_control_directives_s {
 ///   present
 ///
 /// Work-Group Info (enable_sgpr_workgroup_info):
-///   Number of System SGPR registers: 1. {first_wave, 14’b0000,
+///   Number of System SGPR registers: 1. {first_wave, 14'b0000,
 ///   ordered_append_term[10:0], threadgroup_size_in_waves[5:0]}
 ///
 /// Private Segment Wave Byte Offset
@@ -499,25 +506,14 @@ typedef struct hsa_ext_control_directives_s {
 /// Alternatively scalar loads can be used if the kernarg offset is uniform, as
 /// the kernarg segment is constant for the duration of the kernel execution.
 ///
-typedef struct amd_kernel_code_s {
-  /// The AMD major version of the Code Object. Must be the value
-  /// AMD_CODE_VERSION_MAJOR.
-  amd_code_version32_t amd_code_version_major;
 
-  /// The AMD minor version of the Code Object. Minor versions must be
-  /// backward compatible. Must be the value
-  /// AMD_CODE_VERSION_MINOR.
-  amd_code_version32_t amd_code_version_minor;
-
-  /// The byte size of this struct. Must be set to
-  /// sizeof(amd_kernel_code_t). Used for backward
-  /// compatibility.
-  uint32_t struct_byte_size;
-
-  /// The target chip instruction set for which code has been
-  /// generated. Values are from the E_SC_INSTRUCTION_SET enumeration
-  /// in sc/Interface/SCCommon.h.
-  uint32_t target_chip;
+typedef struct amd_kernel_code_s {
+  uint32_t amd_kernel_code_version_major;
+  uint32_t amd_kernel_code_version_minor;
+  uint16_t amd_machine_kind;
+  uint16_t amd_machine_version_major;
+  uint16_t amd_machine_version_minor;
+  uint16_t amd_machine_version_stepping;
 
   /// Byte offset (possibly negative) from start of amd_kernel_code_t
   /// object to kernel's entry point instruction. The actual code for
@@ -535,10 +531,6 @@ typedef struct amd_kernel_code_s {
   /// and size. The offset is from the start (possibly negative) of
   /// amd_kernel_code_t object. Set both to 0 if no prefetch
   /// information is available.
-  ///
-  /// \todo ttye 11/15/2013 Is the prefetch definition we want? Did
-  /// not make the size a uint64_t as prefetching more than 4GiB seems
-  /// excessive.
   int64_t kernel_code_prefetch_byte_offset;
   uint64_t kernel_code_prefetch_byte_size;
 
@@ -553,11 +545,11 @@ typedef struct amd_kernel_code_s {
 
   /// Shader program settings for CS. Contains COMPUTE_PGM_RSRC1 and
   /// COMPUTE_PGM_RSRC2 registers.
-  amd_compute_pgm_resource_register64_t compute_pgm_resource_registers;
+  uint64_t compute_pgm_resource_registers;
 
   /// Code properties. See amd_code_property_mask_t for a full list of
   /// properties.
-  amd_code_property32_t code_properties;
+  uint32_t code_properties;
 
   /// The amount of memory required for the combined private, spill
   /// and arg segments for a work-item in bytes. If
@@ -629,76 +621,21 @@ typedef struct amd_kernel_code_s {
   /// The maximum byte alignment of variables used by the kernel in
   /// the specified memory segment. Expressed as a power of two. Must
   /// be at least HSA_POWERTWO_16.
-  hsa_powertwo8_t kernarg_segment_alignment;
-  hsa_powertwo8_t group_segment_alignment;
-  hsa_powertwo8_t private_segment_alignment;
-
-  uint8_t reserved3;
-
-  /// Type of code object.
-  hsa_ext_code_kind32_t code_type;
-
-  /// Reserved for code properties if any are defined in the future.
-  /// There are currently no code properties so this field must be 0.
-  uint32_t reserved4;
+  uint8_t kernarg_segment_alignment;
+  uint8_t group_segment_alignment;
+  uint8_t private_segment_alignment;
 
   /// Wavefront size expressed as a power of two. Must be a power of 2
   /// in range 1..64 inclusive. Used to support runtime query that
   /// obtains wavefront size, which may be used by application to
   /// allocated dynamic group memory and set the dispatch work-group
   /// size.
-  hsa_powertwo8_t wavefront_size;
-
-  /// The optimization level specified when the kernel was
-  /// finalized.
-  uint8_t optimization_level;
-
-  /// The HSAIL profile defines which features are used. This
-  /// information is from the HSAIL version directive. If this
-  /// amd_kernel_code_t is not generated from an HSAIL compilation
-  /// unit then must be 0.
-  hsa_ext_brig_profile8_t hsail_profile;
-
-  /// The HSAIL machine model gives the address sizes used by the
-  /// code. This information is from the HSAIL version directive. If
-  /// not generated from an HSAIL compilation unit then must still
-  /// indicate for what machine mode the code is generated.
-  hsa_ext_brig_machine_model8_t hsail_machine_model;
-
-  /// The HSAIL major version. This information is from the HSAIL
-  /// version directive. If this amd_kernel_code_t is not
-  /// generated from an HSAIL compilation unit then must be 0.
-  uint32_t hsail_version_major;
-
-  /// The HSAIL minor version. This information is from the HSAIL
-  /// version directive. If this amd_kernel_code_t is not
-  /// generated from an HSAIL compilation unit then must be 0.
-  uint32_t hsail_version_minor;
-
-  /// Reserved for HSAIL target options if any are defined in the
-  /// future. There are currently no target options so this field
-  /// must be 0.
-  uint16_t reserved5;
-
-  /// Reserved. Must be 0.
-  uint16_t reserved6;
-
-  /// The values should be the actually values used by the finalizer
-  /// in generating the code. This may be the union of values
-  /// specified as finalizer arguments and explicit HSAIL control
-  /// directives. If the finalizer chooses to ignore a control
-  /// directive, and not generate constrained code, then the control
-  /// directive should not be marked as enabled even though it was
-  /// present in the HSAIL or finalizer argument. The values are
-  /// intended to reflect the constraints that the code actually
-  /// requires to correctly execute, not the values that were
-  /// actually specified at finalize time.
-  hsa_ext_control_directives_t control_directive;
-
-  /// The code can immediately follow the amd_kernel_code_t, or can
-  /// come after subsequent amd_kernel_code_t structs when there are
-  /// multiple kernels in the compilation unit.
+  uint8_t wavefront_size;
 
+  int32_t call_convention;
+  uint8_t reserved3[12];
+  uint64_t runtime_loader_kernel_symbol;
+  uint64_t control_directives[16];
 } amd_kernel_code_t;
 
 #endif // AMDKERNELCODET_H
diff --git a/llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp b/llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp
index 91b6e71918c..2018983bc30 100644
--- a/llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp
+++ b/llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp
@@ -10,6 +10,7 @@
 #include "MCTargetDesc/AMDGPUMCTargetDesc.h"
 #include "MCTargetDesc/AMDGPUTargetStreamer.h"
 #include "Utils/AMDGPUBaseInfo.h"
+#include "AMDKernelCodeT.h"
 #include "SIDefines.h"
 #include "llvm/ADT/APFloat.h"
 #include "llvm/ADT/SmallString.h"
@@ -320,6 +321,8 @@ private:
   bool ParseDirectiveMajorMinor(uint32_t &Major, uint32_t &Minor);
   bool ParseDirectiveHSACodeObjectVersion();
   bool ParseDirectiveHSACodeObjectISA();
+  bool ParseAMDKernelCodeTValue(StringRef ID, amd_kernel_code_t &Header);
+  bool ParseDirectiveAMDKernelCodeT();
 
 public:
   AMDGPUAsmParser(MCSubtargetInfo &STI, MCAsmParser &_Parser,
@@ -683,6 +686,202 @@ bool AMDGPUAsmParser::ParseDirectiveHSACodeObjectISA() {
   return false;
 }
 
+bool AMDGPUAsmParser::ParseAMDKernelCodeTValue(StringRef ID,
+                                               amd_kernel_code_t &Header) {
+
+  if (getLexer().isNot(AsmToken::Equal))
+    return TokError("expected '='");
+  Lex();
+
+  if (getLexer().isNot(AsmToken::Integer))
+    return TokError("amd_kernel_code_t values must be integers");
+
+  uint64_t Value = getLexer().getTok().getIntVal();
+  Lex();
+
+  if (ID == "kernel_code_version_major")
+    Header.amd_kernel_code_version_major = Value;
+  else if (ID == "kernel_code_version_minor")
+    Header.amd_kernel_code_version_minor = Value;
+  else if (ID == "machine_kind")
+    Header.amd_machine_kind = Value;
+  else if (ID == "machine_version_major")
+    Header.amd_machine_version_major = Value;
+  else if (ID == "machine_version_minor")
+    Header.amd_machine_version_minor = Value;
+  else if (ID == "machine_version_stepping")
+    Header.amd_machine_version_stepping = Value;
+  else if (ID == "kernel_code_entry_byte_offset")
+    Header.kernel_code_entry_byte_offset = Value;
+  else if (ID == "kernel_code_prefetch_byte_size")
+    Header.kernel_code_prefetch_byte_size = Value;
+  else if (ID == "max_scratch_backing_memory_byte_size")
+    Header.max_scratch_backing_memory_byte_size = Value;
+  else if (ID == "compute_pgm_rsrc1_vgprs")
+    Header.compute_pgm_resource_registers |= S_00B848_VGPRS(Value);
+  else if (ID == "compute_pgm_rsrc1_sgprs")
+    Header.compute_pgm_resource_registers |= S_00B848_SGPRS(Value);
+  else if (ID == "compute_pgm_rsrc1_priority")
+    Header.compute_pgm_resource_registers |= S_00B848_PRIORITY(Value);
+  else if (ID == "compute_pgm_rsrc1_float_mode")
+    Header.compute_pgm_resource_registers |= S_00B848_FLOAT_MODE(Value);
+  else if (ID == "compute_pgm_rsrc1_priv")
+    Header.compute_pgm_resource_registers |= S_00B848_PRIV(Value);
+  else if (ID == "compute_pgm_rsrc1_dx10_clamp")
+    Header.compute_pgm_resource_registers |= S_00B848_DX10_CLAMP(Value);
+  else if (ID == "compute_pgm_rsrc1_debug_mode")
+    Header.compute_pgm_resource_registers |= S_00B848_DEBUG_MODE(Value);
+  else if (ID == "compute_pgm_rsrc1_ieee_mode")
+    Header.compute_pgm_resource_registers |= S_00B848_IEEE_MODE(Value);
+  else if (ID == "compute_pgm_rsrc2_scratch_en")
+    Header.compute_pgm_resource_registers |= (S_00B84C_SCRATCH_EN(Value) << 32);
+  else if (ID == "compute_pgm_rsrc2_user_sgpr")
+    Header.compute_pgm_resource_registers |= (S_00B84C_USER_SGPR(Value) << 32);
+  else if (ID == "compute_pgm_rsrc2_tgid_x_en")
+    Header.compute_pgm_resource_registers |= (S_00B84C_TGID_X_EN(Value) << 32);
+  else if (ID == "compute_pgm_rsrc2_tgid_y_en")
+    Header.compute_pgm_resource_registers |= (S_00B84C_TGID_Y_EN(Value) << 32);
+  else if (ID == "compute_pgm_rsrc2_tgid_z_en")
+    Header.compute_pgm_resource_registers |= (S_00B84C_TGID_Z_EN(Value) << 32);
+  else if (ID == "compute_pgm_rsrc2_tg_size_en")
+    Header.compute_pgm_resource_registers |= (S_00B84C_TG_SIZE_EN(Value) << 32);
+  else if (ID == "compute_pgm_rsrc2_tidig_comp_cnt")
+    Header.compute_pgm_resource_registers |=
+        (S_00B84C_TIDIG_COMP_CNT(Value) << 32);
+  else if (ID == "compute_pgm_rsrc2_excp_en_msb")
+    Header.compute_pgm_resource_registers |=
+        (S_00B84C_EXCP_EN_MSB(Value) << 32);
+  else if (ID == "compute_pgm_rsrc2_lds_size")
+    Header.compute_pgm_resource_registers |= (S_00B84C_LDS_SIZE(Value) << 32);
+  else if (ID == "compute_pgm_rsrc2_excp_en")
+    Header.compute_pgm_resource_registers |= (S_00B84C_EXCP_EN(Value) << 32);
+  else if (ID == "compute_pgm_resource_registers")
+    Header.compute_pgm_resource_registers = Value;
+  else if (ID == "enable_sgpr_private_segment_buffer")
+    Header.code_properties |=
+        (Value << AMD_CODE_PROPERTY_ENABLE_SGPR_PRIVATE_SEGMENT_BUFFER_SHIFT);
+  else if (ID == "enable_sgpr_dispatch_ptr")
+    Header.code_properties |=
+        (Value << AMD_CODE_PROPERTY_ENABLE_SGPR_DISPATCH_PTR_SHIFT);
+  else if (ID == "enable_sgpr_queue_ptr")
+    Header.code_properties |=
+        (Value << AMD_CODE_PROPERTY_ENABLE_SGPR_QUEUE_PTR_SHIFT);
+  else if (ID == "enable_sgpr_kernarg_segment_ptr")
+    Header.code_properties |=
+        (Value << AMD_CODE_PROPERTY_ENABLE_SGPR_KERNARG_SEGMENT_PTR_SHIFT);
+  else if (ID == "enable_sgpr_dispatch_id")
+    Header.code_properties |=
+        (Value << AMD_CODE_PROPERTY_ENABLE_SGPR_DISPATCH_ID_SHIFT);
+  else if (ID == "enable_sgpr_flat_scratch_init")
+    Header.code_properties |=
+        (Value << AMD_CODE_PROPERTY_ENABLE_SGPR_FLAT_SCRATCH_INIT_SHIFT);
+  else if (ID == "enable_sgpr_private_segment_size")
+    Header.code_properties |=
+        (Value << AMD_CODE_PROPERTY_ENABLE_SGPR_PRIVATE_SEGMENT_SIZE_SHIFT);
+  else if (ID == "enable_sgpr_grid_workgroup_count_x")
+    Header.code_properties |=
+        (Value << AMD_CODE_PROPERTY_ENABLE_SGPR_GRID_WORKGROUP_COUNT_X_SHIFT);
+  else if (ID == "enable_sgpr_grid_workgroup_count_y")
+    Header.code_properties |=
+        (Value << AMD_CODE_PROPERTY_ENABLE_SGPR_GRID_WORKGROUP_COUNT_Y_SHIFT);
+  else if (ID == "enable_sgpr_grid_workgroup_count_z")
+    Header.code_properties |=
+        (Value << AMD_CODE_PROPERTY_ENABLE_SGPR_GRID_WORKGROUP_COUNT_Z_SHIFT);
+  else if (ID == "enable_ordered_append_gds")
+    Header.code_properties |=
+        (Value << AMD_CODE_PROPERTY_ENABLE_ORDERED_APPEND_GDS_SHIFT);
+  else if (ID == "private_element_size")
+    Header.code_properties |=
+        (Value << AMD_CODE_PROPERTY_PRIVATE_ELEMENT_SIZE_SHIFT);
+  else if (ID == "is_ptr64")
+    Header.code_properties |=
+        (Value << AMD_CODE_PROPERTY_IS_PTR64_SHIFT);
+  else if (ID == "is_dynamic_callstack")
+    Header.code_properties |=
+        (Value << AMD_CODE_PROPERTY_IS_DYNAMIC_CALLSTACK_SHIFT);
+  else if (ID == "is_debug_enabled")
+    Header.code_properties |=
+        (Value << AMD_CODE_PROPERTY_IS_DEBUG_SUPPORTED_SHIFT);
+  else if (ID == "is_xnack_enabled")
+    Header.code_properties |=
+        (Value << AMD_CODE_PROPERTY_IS_XNACK_SUPPORTED_SHIFT);
+  else if (ID == "workitem_private_segment_byte_size")
+    Header.workitem_private_segment_byte_size = Value;
+  else if (ID == "workgroup_group_segment_byte_size")
+    Header.workgroup_group_segment_byte_size = Value;
+  else if (ID == "gds_segment_byte_size")
+    Header.gds_segment_byte_size = Value;
+  else if (ID == "kernarg_segment_byte_size")
+    Header.kernarg_segment_byte_size = Value;
+  else if (ID == "workgroup_fbarrier_count")
+    Header.workgroup_fbarrier_count = Value;
+  else if (ID == "wavefront_sgpr_count")
+    Header.wavefront_sgpr_count = Value;
+  else if (ID == "workitem_vgpr_count")
+    Header.workitem_vgpr_count = Value;
+  else if (ID == "reserved_vgpr_first")
+    Header.reserved_vgpr_first = Value;
+  else if (ID == "reserved_vgpr_count")
+    Header.reserved_vgpr_count = Value;
+  else if (ID == "reserved_sgpr_first")
+    Header.reserved_sgpr_first = Value;
+  else if (ID == "reserved_sgpr_count")
+    Header.reserved_sgpr_count = Value;
+  else if (ID == "debug_wavefront_private_segment_offset_sgpr")
+    Header.debug_wavefront_private_segment_offset_sgpr = Value;
+  else if (ID == "debug_private_segment_buffer_sgpr")
+    Header.debug_private_segment_buffer_sgpr = Value;
+  else if (ID == "kernarg_segment_alignment")
+    Header.kernarg_segment_alignment = Value;
+  else if (ID == "group_segment_alignment")
+    Header.group_segment_alignment = Value;
+  else if (ID == "private_segment_alignment")
+    Header.private_segment_alignment = Value;
+  else if (ID == "wavefront_size")
+    Header.wavefront_size = Value;
+  else if (ID == "call_convention")
+    Header.call_convention = Value;
+  else if (ID == "runtime_loader_kernel_symbol")
+    Header.runtime_loader_kernel_symbol = Value;
+  else
+    return TokError("amd_kernel_code_t value not recognized.");
+
+  return false;
+}
+
+bool AMDGPUAsmParser::ParseDirectiveAMDKernelCodeT() {
+
+  amd_kernel_code_t Header;
+  AMDGPU::initDefaultAMDKernelCodeT(Header, STI.getFeatureBits());
+
+  while (true) {
+
+    if (getLexer().isNot(AsmToken::EndOfStatement))
+      return TokError("amd_kernel_code_t values must begin on a new line");
+
+    // Lex EndOfStatement.  This is in a while loop, because lexing a comment
+    // will set the current token to EndOfStatement.
+    while(getLexer().is(AsmToken::EndOfStatement))
+      Lex();
+
+    if (getLexer().isNot(AsmToken::Identifier))
+      return TokError("expected value identifier or .end_amd_kernel_code_t");
+
+    StringRef ID = getLexer().getTok().getIdentifier();
+    Lex();
+
+    if (ID == ".end_amd_kernel_code_t")
+      break;
+
+    if (ParseAMDKernelCodeTValue(ID, Header))
+      return true;
+  }
+
+  getTargetStreamer().EmitAMDKernelCodeT(Header);
+
+  return false;
+}
+
 bool AMDGPUAsmParser::ParseDirective(AsmToken DirectiveID) {
   StringRef IDVal = DirectiveID.getString();
 
@@ -692,6 +891,9 @@ bool AMDGPUAsmParser::ParseDirective(AsmToken DirectiveID) {
   if (IDVal == ".hsa_code_object_isa")
     return ParseDirectiveHSACodeObjectISA();
 
+  if (IDVal == ".amd_kernel_code_t")
+    return ParseDirectiveAMDKernelCodeT();
+
   return true;
 }
 
diff --git a/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUTargetStreamer.cpp b/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUTargetStreamer.cpp
index a1a40211fc4..09e6cb1f1ff 100644
--- a/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUTargetStreamer.cpp
+++ b/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUTargetStreamer.cpp
@@ -12,9 +12,11 @@
 //===----------------------------------------------------------------------===//
 
 #include "AMDGPUTargetStreamer.h"
+#include "SIDefines.h"
 #include "llvm/ADT/Twine.h"
 #include "llvm/MC/MCContext.h"
 #include "llvm/MC/MCELFStreamer.h"
+#include "llvm/MC/MCObjectFileInfo.h"
 #include "llvm/MC/MCSectionELF.h"
 #include "llvm/Support/ELF.h"
 #include "llvm/Support/FormattedStream.h"
@@ -51,6 +53,173 @@ AMDGPUTargetAsmStreamer::EmitDirectiveHSACodeObjectISA(uint32_t Major,
 
 }
 
+void
+AMDGPUTargetAsmStreamer::EmitAMDKernelCodeT(const amd_kernel_code_t &Header) {
+  uint64_t ComputePgmRsrc2 = (Header.compute_pgm_resource_registers >> 32);
+  bool EnableSGPRPrivateSegmentBuffer = (Header.code_properties &
+      AMD_CODE_PROPERTY_ENABLE_SGPR_PRIVATE_SEGMENT_BUFFER);
+  bool EnableSGPRDispatchPtr = (Header.code_properties &
+      AMD_CODE_PROPERTY_ENABLE_SGPR_DISPATCH_PTR);
+  bool EnableSGPRQueuePtr = (Header.code_properties &
+      AMD_CODE_PROPERTY_ENABLE_SGPR_QUEUE_PTR);
+  bool EnableSGPRKernargSegmentPtr = (Header.code_properties &
+      AMD_CODE_PROPERTY_ENABLE_SGPR_KERNARG_SEGMENT_PTR);
+  bool EnableSGPRDispatchID = (Header.code_properties &
+      AMD_CODE_PROPERTY_ENABLE_SGPR_DISPATCH_ID);
+  bool EnableSGPRFlatScratchInit = (Header.code_properties &
+      AMD_CODE_PROPERTY_ENABLE_SGPR_FLAT_SCRATCH_INIT);
+  bool EnableSGPRPrivateSegmentSize = (Header.code_properties &
+      AMD_CODE_PROPERTY_ENABLE_SGPR_PRIVATE_SEGMENT_SIZE);
+  bool EnableSGPRGridWorkgroupCountX = (Header.code_properties &
+      AMD_CODE_PROPERTY_ENABLE_SGPR_GRID_WORKGROUP_COUNT_X);
+  bool EnableSGPRGridWorkgroupCountY = (Header.code_properties &
+      AMD_CODE_PROPERTY_ENABLE_SGPR_GRID_WORKGROUP_COUNT_Y);
+  bool EnableSGPRGridWorkgroupCountZ = (Header.code_properties &
+      AMD_CODE_PROPERTY_ENABLE_SGPR_GRID_WORKGROUP_COUNT_Z);
+  bool EnableOrderedAppendGDS = (Header.code_properties &
+      AMD_CODE_PROPERTY_ENABLE_ORDERED_APPEND_GDS);
+  uint32_t PrivateElementSize = (Header.code_properties &
+      AMD_CODE_PROPERTY_PRIVATE_ELEMENT_SIZE) >>
+          AMD_CODE_PROPERTY_PRIVATE_ELEMENT_SIZE_SHIFT;
+  bool IsPtr64 = (Header.code_properties & AMD_CODE_PROPERTY_IS_PTR64);
+  bool IsDynamicCallstack = (Header.code_properties &
+      AMD_CODE_PROPERTY_IS_DYNAMIC_CALLSTACK);
+  bool IsDebugEnabled = (Header.code_properties &
+      AMD_CODE_PROPERTY_IS_DEBUG_SUPPORTED);
+  bool IsXNackEnabled = (Header.code_properties &
+      AMD_CODE_PROPERTY_IS_XNACK_SUPPORTED);
+
+  OS << "\t.amd_kernel_code_t\n" <<
+    "\t\tkernel_code_version_major = " <<
+        Header.amd_kernel_code_version_major << '\n' <<
+    "\t\tkernel_code_version_minor = " <<
+        Header.amd_kernel_code_version_minor << '\n' <<
+    "\t\tmachine_kind = " <<
+        Header.amd_machine_kind << '\n' <<
+    "\t\tmachine_version_major = " <<
+        Header.amd_machine_version_major << '\n' <<
+    "\t\tmachine_version_minor = " <<
+        Header.amd_machine_version_minor << '\n' <<
+    "\t\tmachine_version_stepping = " <<
+        Header.amd_machine_version_stepping << '\n' <<
+    "\t\tkernel_code_entry_byte_offset = " <<
+        Header.kernel_code_entry_byte_offset << '\n' <<
+    "\t\tkernel_code_prefetch_byte_size = " <<
+        Header.kernel_code_prefetch_byte_size << '\n' <<
+    "\t\tmax_scratch_backing_memory_byte_size = " <<
+        Header.max_scratch_backing_memory_byte_size << '\n' <<
+    "\t\tcompute_pgm_rsrc1_vgprs = " <<
+        G_00B848_VGPRS(Header.compute_pgm_resource_registers) << '\n' <<
+    "\t\tcompute_pgm_rsrc1_sgprs = " <<
+        G_00B848_SGPRS(Header.compute_pgm_resource_registers) << '\n' <<
+    "\t\tcompute_pgm_rsrc1_priority = " <<
+        G_00B848_PRIORITY(Header.compute_pgm_resource_registers) << '\n' <<
+    "\t\tcompute_pgm_rsrc1_float_mode = " <<
+        G_00B848_FLOAT_MODE(Header.compute_pgm_resource_registers) << '\n' <<
+    "\t\tcompute_pgm_rsrc1_priv = " <<
+        G_00B848_PRIV(Header.compute_pgm_resource_registers) << '\n' <<
+    "\t\tcompute_pgm_rsrc1_dx10_clamp = " <<
+        G_00B848_DX10_CLAMP(Header.compute_pgm_resource_registers) << '\n' <<
+    "\t\tcompute_pgm_rsrc1_debug_mode = " <<
+        G_00B848_DEBUG_MODE(Header.compute_pgm_resource_registers) << '\n' <<
+    "\t\tcompute_pgm_rsrc1_ieee_mode = " <<
+        G_00B848_IEEE_MODE(Header.compute_pgm_resource_registers) << '\n' <<
+    "\t\tcompute_pgm_rsrc2_scratch_en = " <<
+        G_00B84C_SCRATCH_EN(ComputePgmRsrc2) << '\n' <<
+    "\t\tcompute_pgm_rsrc2_user_sgpr = " <<
+        G_00B84C_USER_SGPR(ComputePgmRsrc2) << '\n' <<
+    "\t\tcompute_pgm_rsrc2_tgid_x_en = " <<
+        G_00B84C_TGID_X_EN(ComputePgmRsrc2) << '\n' <<
+    "\t\tcompute_pgm_rsrc2_tgid_y_en = " <<
+        G_00B84C_TGID_Y_EN(ComputePgmRsrc2) << '\n' <<
+    "\t\tcompute_pgm_rsrc2_tgid_z_en = " <<
+        G_00B84C_TGID_Z_EN(ComputePgmRsrc2) << '\n' <<
+    "\t\tcompute_pgm_rsrc2_tg_size_en = " <<
+        G_00B84C_TG_SIZE_EN(ComputePgmRsrc2) << '\n' <<
+    "\t\tcompute_pgm_rsrc2_tidig_comp_cnt = " <<
+        G_00B84C_TIDIG_COMP_CNT(ComputePgmRsrc2) << '\n' <<
+    "\t\tcompute_pgm_rsrc2_excp_en_msb = " <<
+        G_00B84C_EXCP_EN_MSB(ComputePgmRsrc2) << '\n' <<
+    "\t\tcompute_pgm_rsrc2_lds_size = " <<
+        G_00B84C_LDS_SIZE(ComputePgmRsrc2) << '\n' <<
+    "\t\tcompute_pgm_rsrc2_excp_en = " <<
+        G_00B84C_EXCP_EN(ComputePgmRsrc2) << '\n' <<
+
+    "\t\tenable_sgpr_private_segment_buffer = " <<
+        EnableSGPRPrivateSegmentBuffer << '\n' <<
+    "\t\tenable_sgpr_dispatch_ptr = " <<
+        EnableSGPRDispatchPtr << '\n' <<
+    "\t\tenable_sgpr_queue_ptr = " <<
+        EnableSGPRQueuePtr << '\n' <<
+    "\t\tenable_sgpr_kernarg_segment_ptr = " <<
+        EnableSGPRKernargSegmentPtr << '\n' <<
+    "\t\tenable_sgpr_dispatch_id = " <<
+        EnableSGPRDispatchID << '\n' <<
+    "\t\tenable_sgpr_flat_scratch_init = " <<
+        EnableSGPRFlatScratchInit << '\n' <<
+    "\t\tenable_sgpr_private_segment_size = " <<
+        EnableSGPRPrivateSegmentSize << '\n' <<
+    "\t\tenable_sgpr_grid_workgroup_count_x = " <<
+        EnableSGPRGridWorkgroupCountX << '\n' <<
+    "\t\tenable_sgpr_grid_workgroup_count_y = " <<
+        EnableSGPRGridWorkgroupCountY << '\n' <<
+    "\t\tenable_sgpr_grid_workgroup_count_z = " <<
+        EnableSGPRGridWorkgroupCountZ << '\n' <<
+    "\t\tenable_ordered_append_gds = " <<
+        EnableOrderedAppendGDS << '\n' <<
+    "\t\tprivate_element_size = " <<
+        PrivateElementSize << '\n' <<
+    "\t\tis_ptr64 = " <<
+        IsPtr64 << '\n' <<
+    "\t\tis_dynamic_callstack = " <<
+        IsDynamicCallstack << '\n' <<
+    "\t\tis_debug_enabled = " <<
+        IsDebugEnabled << '\n' <<
+    "\t\tis_xnack_enabled = " <<
+        IsXNackEnabled << '\n' <<
+    "\t\tworkitem_private_segment_byte_size = " <<
+        Header.workitem_private_segment_byte_size << '\n' <<
+    "\t\tworkgroup_group_segment_byte_size = " <<
+        Header.workgroup_group_segment_byte_size << '\n' <<
+    "\t\tgds_segment_byte_size = " <<
+        Header.gds_segment_byte_size << '\n' <<
+    "\t\tkernarg_segment_byte_size = " <<
+        Header.kernarg_segment_byte_size << '\n' <<
+    "\t\tworkgroup_fbarrier_count = " <<
+        Header.workgroup_fbarrier_count << '\n' <<
+    "\t\twavefront_sgpr_count = " <<
+        Header.wavefront_sgpr_count << '\n' <<
+    "\t\tworkitem_vgpr_count = " <<
+        Header.workitem_vgpr_count << '\n' <<
+    "\t\treserved_vgpr_first = " <<
+        Header.reserved_vgpr_first << '\n' <<
+    "\t\treserved_vgpr_count = " <<
+        Header.reserved_vgpr_count << '\n' <<
+    "\t\treserved_sgpr_first = " <<
+        Header.reserved_sgpr_first << '\n' <<
+    "\t\treserved_sgpr_count = " <<
+        Header.reserved_sgpr_count << '\n' <<
+    "\t\tdebug_wavefront_private_segment_offset_sgpr = " <<
+        Header.debug_wavefront_private_segment_offset_sgpr << '\n' <<
+    "\t\tdebug_private_segment_buffer_sgpr = " <<
+        Header.debug_private_segment_buffer_sgpr << '\n' <<
+    "\t\tkernarg_segment_alignment = " <<
+        (uint32_t)Header.kernarg_segment_alignment << '\n' <<
+    "\t\tgroup_segment_alignment = " <<
+        (uint32_t)Header.group_segment_alignment << '\n' <<
+    "\t\tprivate_segment_alignment = " <<
+        (uint32_t)Header.private_segment_alignment << '\n' <<
+    "\t\twavefront_size = " <<
+        (uint32_t)Header.wavefront_size << '\n' <<
+    "\t\tcall_convention = " <<
+        Header.call_convention << '\n' <<
+    "\t\truntime_loader_kernel_symbol = " <<
+        Header.runtime_loader_kernel_symbol << '\n' <<
+    // TODO: control_directives
+    "\t.end_amd_kernel_code_t\n";
+
+}
+
 //===----------------------------------------------------------------------===//
 // AMDGPUTargetELFStreamer
 //===----------------------------------------------------------------------===//
@@ -116,3 +285,13 @@ AMDGPUTargetELFStreamer::EmitDirectiveHSACodeObjectISA(uint32_t Major,
   OS.EmitValueToAlignment(4);
   OS.PopSection();
 }
+
+void
+AMDGPUTargetELFStreamer::EmitAMDKernelCodeT(const amd_kernel_code_t &Header) {
+
+  MCStreamer &OS = getStreamer();
+  OS.PushSection();
+  OS.SwitchSection(OS.getContext().getObjectFileInfo()->getTextSection());
+  OS.EmitBytes(StringRef((const char*)&Header, sizeof(Header)));
+  OS.PopSection();
+}
diff --git a/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUTargetStreamer.h b/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUTargetStreamer.h
index 9ea4ce263e9..d37677c6b86 100644
--- a/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUTargetStreamer.h
+++ b/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUTargetStreamer.h
@@ -7,8 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "AMDKernelCodeT.h"
 #include "llvm/MC/MCStreamer.h"
-
 #include "llvm/MC/MCSymbol.h"
 #include "llvm/Support/Debug.h"
 namespace llvm {
@@ -25,6 +25,8 @@ public:
                                              uint32_t Stepping,
                                              StringRef VendorName,
                                              StringRef ArchName) = 0;
+
+  virtual void EmitAMDKernelCodeT(const amd_kernel_code_t &Header) = 0;
 };
 
 class AMDGPUTargetAsmStreamer : public AMDGPUTargetStreamer {
@@ -37,6 +39,8 @@ public:
   void EmitDirectiveHSACodeObjectISA(uint32_t Major, uint32_t Minor,
                                      uint32_t Stepping, StringRef VendorName,
                                      StringRef ArchName) override;
+
+  void EmitAMDKernelCodeT(const amd_kernel_code_t &Header) override;
 };
 
 class AMDGPUTargetELFStreamer : public AMDGPUTargetStreamer {
@@ -65,6 +69,9 @@ public:
   void EmitDirectiveHSACodeObjectISA(uint32_t Major, uint32_t Minor,
                                      uint32_t Stepping, StringRef VendorName,
                                      StringRef ArchName) override;
+
+  void EmitAMDKernelCodeT(const amd_kernel_code_t &Header) override;
+
 };
 
 }
diff --git a/llvm/lib/Target/AMDGPU/SIDefines.h b/llvm/lib/Target/AMDGPU/SIDefines.h
index 4727d971ab7..4c3263911c4 100644
--- a/llvm/lib/Target/AMDGPU/SIDefines.h
+++ b/llvm/lib/Target/AMDGPU/SIDefines.h
@@ -100,16 +100,41 @@ namespace SIOutMods {
 #define R_00B848_COMPUTE_PGM_RSRC1                                      0x00B848
 #define   S_00B028_VGPRS(x)                                           (((x) & 0x3F) << 0)
 #define   S_00B028_SGPRS(x)                                           (((x) & 0x0F) << 6)
+
 #define R_00B84C_COMPUTE_PGM_RSRC2                                      0x00B84C
 #define   S_00B84C_SCRATCH_EN(x)                                      (((x) & 0x1) << 0)
+#define   G_00B84C_SCRATCH_EN(x)                                      (((x) >> 0) & 0x1)
+#define   C_00B84C_SCRATCH_EN                                         0xFFFFFFFE
 #define   S_00B84C_USER_SGPR(x)                                       (((x) & 0x1F) << 1)
+#define   G_00B84C_USER_SGPR(x)                                       (((x) >> 1) & 0x1F)
+#define   C_00B84C_USER_SGPR                                          0xFFFFFFC1
 #define   S_00B84C_TGID_X_EN(x)                                       (((x) & 0x1) << 7)
+#define   G_00B84C_TGID_X_EN(x)                                       (((x) >> 7) & 0x1)
+#define   C_00B84C_TGID_X_EN                                          0xFFFFFF7F
 #define   S_00B84C_TGID_Y_EN(x)                                       (((x) & 0x1) << 8)
+#define   G_00B84C_TGID_Y_EN(x)                                       (((x) >> 8) & 0x1)
+#define   C_00B84C_TGID_Y_EN                                          0xFFFFFEFF
 #define   S_00B84C_TGID_Z_EN(x)                                       (((x) & 0x1) << 9)
+#define   G_00B84C_TGID_Z_EN(x)                                       (((x) >> 9) & 0x1)
+#define   C_00B84C_TGID_Z_EN                                          0xFFFFFDFF
 #define   S_00B84C_TG_SIZE_EN(x)                                      (((x) & 0x1) << 10)
+#define   G_00B84C_TG_SIZE_EN(x)                                      (((x) >> 10) & 0x1)
+#define   C_00B84C_TG_SIZE_EN                                         0xFFFFFBFF
 #define   S_00B84C_TIDIG_COMP_CNT(x)                                  (((x) & 0x03) << 11)
-
+#define   G_00B84C_TIDIG_COMP_CNT(x)                                  (((x) >> 11) & 0x03)
+#define   C_00B84C_TIDIG_COMP_CNT                                     0xFFFFE7FF
+/* CIK */
+#define   S_00B84C_EXCP_EN_MSB(x)                                     (((x) & 0x03) << 13)
+#define   G_00B84C_EXCP_EN_MSB(x)                                     (((x) >> 13) & 0x03)
+#define   C_00B84C_EXCP_EN_MSB                                        0xFFFF9FFF
+/*     */
 #define   S_00B84C_LDS_SIZE(x)                                        (((x) & 0x1FF) << 15)
+#define   G_00B84C_LDS_SIZE(x)                                        (((x) >> 15) & 0x1FF)
+#define   C_00B84C_LDS_SIZE                                           0xFF007FFF
+#define   S_00B84C_EXCP_EN(x)                                         (((x) & 0x7F) << 24)
+#define   G_00B84C_EXCP_EN(x)                                         (((x) >> 24) & 0x7F)
+#define   C_00B84C_EXCP_EN 
+
 #define R_0286CC_SPI_PS_INPUT_ENA                                       0x0286CC
 
 
diff --git a/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp b/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
index 220de5cebab..b76b4007003 100644
--- a/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
@@ -33,5 +33,28 @@ IsaVersion getIsaVersion(const FeatureBitset &Features) {
   return {0, 0, 0};
 }
 
+void initDefaultAMDKernelCodeT(amd_kernel_code_t &Header,
+                               const FeatureBitset &Features) {
+
+  IsaVersion ISA = getIsaVersion(Features);
+
+  memset(&Header, 0, sizeof(Header));
+
+  Header.amd_kernel_code_version_major = 1;
+  Header.amd_kernel_code_version_minor = 0;
+  Header.amd_machine_kind = 1; // AMD_MACHINE_KIND_AMDGPU
+  Header.amd_machine_version_major = ISA.Major;
+  Header.amd_machine_version_minor = ISA.Minor;
+  Header.amd_machine_version_stepping = ISA.Stepping;
+  Header.kernel_code_entry_byte_offset = sizeof(Header);
+  // wavefront_size is specified as a power of 2: 2^6 = 64 threads.
+  Header.wavefront_size = 6;
+  // These alignment values are specified in powers of two, so alignment =
+  // 2^n.  The minimum alignment is 2^4 = 16.
+  Header.kernarg_segment_alignment = 4;
+  Header.group_segment_alignment = 4;
+  Header.private_segment_alignment = 4;
+}
+
 } // End namespace AMDGPU
 } // End namespace llvm
diff --git a/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h b/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h
index aff8155ba79..f57028cc5bf 100644
--- a/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h
+++ b/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h
@@ -25,6 +25,8 @@ struct IsaVersion {
 };
 
 IsaVersion getIsaVersion(const FeatureBitset &Features);
+void initDefaultAMDKernelCodeT(amd_kernel_code_t &Header,
+                               const FeatureBitset &Features);
 
 } // end namespace AMDGPU
 } // end namespace llvm