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1 //===-- AMDILDeviceInfo.h - Constants for describing devices --------------===//
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 /// \file
9 //==-----------------------------------------------------------------------===//
10 #ifndef AMDILDEVICEINFO_H
11 #define AMDILDEVICEINFO_H
12 
13 
14 #include <string>
15 
16 namespace llvm {
17   class AMDGPUDevice;
18   class AMDGPUSubtarget;
19   namespace AMDGPUDeviceInfo {
20     /// Each Capabilities can be executed using a hardware instruction,
21     /// emulated with a sequence of software instructions, or not
22     /// supported at all.
23     enum ExecutionMode {
24       Unsupported = 0, ///< Unsupported feature on the card(Default value)
25        /// This is the execution mode that is set if the feature is emulated in
26        /// software.
27       Software,
28       /// This execution mode is set if the feature exists natively in hardware
29       Hardware
30     };
31 
32     enum Caps {
33       HalfOps          = 0x1,  ///< Half float is supported or not.
34       DoubleOps        = 0x2,  ///< Double is supported or not.
35       ByteOps          = 0x3,  ///< Byte(char) is support or not.
36       ShortOps         = 0x4,  ///< Short is supported or not.
37       LongOps          = 0x5,  ///< Long is supported or not.
38       Images           = 0x6,  ///< Images are supported or not.
39       ByteStores       = 0x7,  ///< ByteStores available(!HD4XXX).
40       ConstantMem      = 0x8,  ///< Constant/CB memory.
41       LocalMem         = 0x9,  ///< Local/LDS memory.
42       PrivateMem       = 0xA,  ///< Scratch/Private/Stack memory.
43       RegionMem        = 0xB,  ///< OCL GDS Memory Extension.
44       FMA              = 0xC,  ///< Use HW FMA or SW FMA.
45       ArenaSegment     = 0xD,  ///< Use for Arena UAV per pointer 12-1023.
46       MultiUAV         = 0xE,  ///< Use for UAV per Pointer 0-7.
47       Reserved0        = 0xF,  ///< ReservedFlag
48       NoAlias          = 0x10, ///< Cached loads.
49       Signed24BitOps   = 0x11, ///< Peephole Optimization.
50       /// Debug mode implies that no hardware features or optimizations
51       /// are performned and that all memory access go through a single
52       /// uav(Arena on HD5XXX/HD6XXX and Raw on HD4XXX).
53       Debug            = 0x12,
54       CachedMem        = 0x13, ///< Cached mem is available or not.
55       BarrierDetect    = 0x14, ///< Detect duplicate barriers.
56       Reserved1        = 0x15, ///< Reserved flag
57       ByteLDSOps       = 0x16, ///< Flag to specify if byte LDS ops are available.
58       ArenaVectors     = 0x17, ///< Flag to specify if vector loads from arena work.
59       TmrReg           = 0x18, ///< Flag to specify if Tmr register is supported.
60       NoInline         = 0x19, ///< Flag to specify that no inlining should occur.
61       MacroDB          = 0x1A, ///< Flag to specify that backend handles macrodb.
62       HW64BitDivMod    = 0x1B, ///< Flag for backend to generate 64bit div/mod.
63       ArenaUAV         = 0x1C, ///< Flag to specify that arena uav is supported.
64       PrivateUAV       = 0x1D, ///< Flag to specify that private memory uses uav's.
65       /// If more capabilities are required, then
66       /// this number needs to be increased.
67       /// All capabilities must come before this
68       /// number.
69       MaxNumberCapabilities = 0x20
70     };
71     /// These have to be in order with the older generations
72     /// having the lower number enumerations.
73     enum Generation {
74       HD4XXX = 0, ///< 7XX based devices.
75       HD5XXX, ///< Evergreen based devices.
76       HD6XXX, ///< NI/Evergreen+ based devices.
77       HD7XXX, ///< Southern Islands based devices.
78       HDTEST, ///< Experimental feature testing device.
79       HDNUMGEN
80     };
81 
82 
83   AMDGPUDevice*
84     getDeviceFromName(const std::string &name, AMDGPUSubtarget *ptr,
85                       bool is64bit = false, bool is64on32bit = false);
86   } // namespace AMDILDeviceInfo
87 } // namespace llvm
88 #endif // AMDILDEVICEINFO_H
89