1 //===--- AMDGPUKernelDescriptor.h -------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 /// \brief AMDGPU kernel descriptor definitions. For more information, visit
12 /// https://llvm.org/docs/AMDGPUUsage.html#kernel-descriptor-for-gfx6-gfx9
14 //===----------------------------------------------------------------------===//
16 #ifndef LLVM_SUPPORT_AMDGPUKERNELDESCRIPTOR_H
17 #define LLVM_SUPPORT_AMDGPUKERNELDESCRIPTOR_H
21 // Creates enumeration entries used for packing bits into integers. Enumeration
22 // entries include bit shift amount, bit width, and bit mask.
23 #define AMDGPU_BITS_ENUM_ENTRY(name, shift, width) \
24 name ## _SHIFT = (shift), \
25 name ## _WIDTH = (width), \
26 name = (((1 << (width)) - 1) << (shift)) \
28 // Gets bits for specified bit mask from specified source.
29 #define AMDGPU_BITS_GET(src, mask) \
30 ((src & mask) >> mask ## _SHIFT) \
32 // Sets bits for specified bit mask in specified destination.
33 #define AMDGPU_BITS_SET(dst, mask, val) \
34 dst &= (~(1 << mask ## _SHIFT) & ~mask); \
35 dst |= (((val) << mask ## _SHIFT) & mask) \
41 /// \brief Floating point rounding modes.
43 AMDGPU_FLOAT_ROUND_MODE_NEAR_EVEN = 0,
44 AMDGPU_FLOAT_ROUND_MODE_PLUS_INFINITY = 1,
45 AMDGPU_FLOAT_ROUND_MODE_MINUS_INFINITY = 2,
46 AMDGPU_FLOAT_ROUND_MODE_ZERO = 3,
49 /// \brief Floating point denorm modes.
51 AMDGPU_FLOAT_DENORM_MODE_FLUSH_SRC_DST = 0,
52 AMDGPU_FLOAT_DENORM_MODE_FLUSH_DST = 1,
53 AMDGPU_FLOAT_DENORM_MODE_FLUSH_SRC = 2,
54 AMDGPU_FLOAT_DENORM_MODE_FLUSH_NONE = 3,
57 /// \brief System VGPR workitem IDs.
59 AMDGPU_SYSTEM_VGPR_WORKITEM_ID_X = 0,
60 AMDGPU_SYSTEM_VGPR_WORKITEM_ID_X_Y = 1,
61 AMDGPU_SYSTEM_VGPR_WORKITEM_ID_X_Y_Z = 2,
62 AMDGPU_SYSTEM_VGPR_WORKITEM_ID_UNDEFINED = 3,
65 /// \brief Compute program resource register one layout.
66 enum ComputePgmRsrc1 {
67 AMDGPU_BITS_ENUM_ENTRY(GRANULATED_WORKITEM_VGPR_COUNT, 0, 6),
68 AMDGPU_BITS_ENUM_ENTRY(GRANULATED_WAVEFRONT_SGPR_COUNT, 6, 4),
69 AMDGPU_BITS_ENUM_ENTRY(PRIORITY, 10, 2),
70 AMDGPU_BITS_ENUM_ENTRY(FLOAT_ROUND_MODE_32, 12, 2),
71 AMDGPU_BITS_ENUM_ENTRY(FLOAT_ROUND_MODE_16_64, 14, 2),
72 AMDGPU_BITS_ENUM_ENTRY(FLOAT_DENORM_MODE_32, 16, 2),
73 AMDGPU_BITS_ENUM_ENTRY(FLOAT_DENORM_MODE_16_64, 18, 2),
74 AMDGPU_BITS_ENUM_ENTRY(PRIV, 20, 1),
75 AMDGPU_BITS_ENUM_ENTRY(ENABLE_DX10_CLAMP, 21, 1),
76 AMDGPU_BITS_ENUM_ENTRY(DEBUG_MODE, 22, 1),
77 AMDGPU_BITS_ENUM_ENTRY(ENABLE_IEEE_MODE, 23, 1),
78 AMDGPU_BITS_ENUM_ENTRY(BULKY, 24, 1),
79 AMDGPU_BITS_ENUM_ENTRY(CDBG_USER, 25, 1),
80 AMDGPU_BITS_ENUM_ENTRY(FP16_OVFL, 26, 1),
81 AMDGPU_BITS_ENUM_ENTRY(RESERVED0, 27, 5),
84 /// \brief Compute program resource register two layout.
85 enum ComputePgmRsrc2 {
86 AMDGPU_BITS_ENUM_ENTRY(ENABLE_SGPR_PRIVATE_SEGMENT_WAVE_OFFSET, 0, 1),
87 AMDGPU_BITS_ENUM_ENTRY(USER_SGPR_COUNT, 1, 5),
88 AMDGPU_BITS_ENUM_ENTRY(ENABLE_TRAP_HANDLER, 6, 1),
89 AMDGPU_BITS_ENUM_ENTRY(ENABLE_SGPR_WORKGROUP_ID_X, 7, 1),
90 AMDGPU_BITS_ENUM_ENTRY(ENABLE_SGPR_WORKGROUP_ID_Y, 8, 1),
91 AMDGPU_BITS_ENUM_ENTRY(ENABLE_SGPR_WORKGROUP_ID_Z, 9, 1),
92 AMDGPU_BITS_ENUM_ENTRY(ENABLE_SGPR_WORKGROUP_INFO, 10, 1),
93 AMDGPU_BITS_ENUM_ENTRY(ENABLE_VGPR_WORKITEM_ID, 11, 2),
94 AMDGPU_BITS_ENUM_ENTRY(ENABLE_EXCEPTION_ADDRESS_WATCH, 13, 1),
95 AMDGPU_BITS_ENUM_ENTRY(ENABLE_EXCEPTION_MEMORY, 14, 1),
96 AMDGPU_BITS_ENUM_ENTRY(GRANULATED_LDS_SIZE, 15, 9),
97 AMDGPU_BITS_ENUM_ENTRY(ENABLE_EXCEPTION_IEEE_754_FP_INVALID_OPERATION, 24, 1),
98 AMDGPU_BITS_ENUM_ENTRY(ENABLE_EXCEPTION_FP_DENORMAL_SOURCE, 25, 1),
99 AMDGPU_BITS_ENUM_ENTRY(ENABLE_EXCEPTION_IEEE_754_FP_DIVISION_BY_ZERO, 26, 1),
100 AMDGPU_BITS_ENUM_ENTRY(ENABLE_EXCEPTION_IEEE_754_FP_OVERFLOW, 27, 1),
101 AMDGPU_BITS_ENUM_ENTRY(ENABLE_EXCEPTION_IEEE_754_FP_UNDERFLOW, 28, 1),
102 AMDGPU_BITS_ENUM_ENTRY(ENABLE_EXCEPTION_IEEE_754_FP_INEXACT, 29, 1),
103 AMDGPU_BITS_ENUM_ENTRY(ENABLE_EXCEPTION_INT_DIVIDE_BY_ZERO, 30, 1),
104 AMDGPU_BITS_ENUM_ENTRY(RESERVED1, 31, 1),
107 /// \brief Kernel descriptor layout. This layout should be kept backwards
108 /// compatible as it is consumed by the command processor.
109 struct KernelDescriptor final {
110 uint32_t GroupSegmentFixedSize;
111 uint32_t PrivateSegmentFixedSize;
112 uint32_t MaxFlatWorkGroupSize;
113 uint64_t IsDynamicCallStack : 1;
114 uint64_t IsXNACKEnabled : 1;
115 uint64_t Reserved0 : 30;
116 int64_t KernelCodeEntryByteOffset;
117 uint64_t Reserved1[3];
118 uint32_t ComputePgmRsrc1;
119 uint32_t ComputePgmRsrc2;
120 uint64_t EnableSGPRPrivateSegmentBuffer : 1;
121 uint64_t EnableSGPRDispatchPtr : 1;
122 uint64_t EnableSGPRQueuePtr : 1;
123 uint64_t EnableSGPRKernargSegmentPtr : 1;
124 uint64_t EnableSGPRDispatchID : 1;
125 uint64_t EnableSGPRFlatScratchInit : 1;
126 uint64_t EnableSGPRPrivateSegmentSize : 1;
127 uint64_t EnableSGPRGridWorkgroupCountX : 1;
128 uint64_t EnableSGPRGridWorkgroupCountY : 1;
129 uint64_t EnableSGPRGridWorkgroupCountZ : 1;
130 uint64_t Reserved2 : 54;
132 KernelDescriptor() = default;
135 } // end namespace HSAKD
136 } // end namespace AMDGPU
137 } // end namespace llvm
139 #endif // LLVM_SUPPORT_AMDGPUKERNELDESCRIPTOR_H