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Vector Permutation Design Document #251

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d96a9b2
Add WIP Vector Permutation Design Doc Template
govardhnn Apr 6, 2025
8c54e48
Add doc on configuring the vector unit - as a intro
govardhnn Apr 13, 2025
bf00bb6
Upda te the Vector Permutation instruction list and plan
govardhnn Apr 13, 2025
39c43fc
Add an example implementation for vector move
govardhnn Apr 14, 2025
74de265
Update minor typo
govardhnn Apr 14, 2025
cca7b68
Update Vector permutation docs and sample impl
govardhnn May 5, 2025
40833f0
Update gen_uarch_rv64v_json.py and fix core/InstArchInfo.hpp position…
govardhnn May 20, 2025
86fe299
Update Docs with pseudo code
govardhnn May 26, 2025
7409d6e
Add Vector uop generator support for permutation instructions
govardhnn Jul 25, 2025
2f9a460
test/core/
govardhnn Jul 25, 2025
0be1cff
Update the unit block diagram
govardhnn Jul 26, 2025
c008e48
Update the design doc
govardhnn Jul 27, 2025
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18 changes: 9 additions & 9 deletions CONTRIBUTORS.md
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Expand Up @@ -2,17 +2,17 @@ See [CONTRIBUTING.md](CONTRIBUTING.md) for details on how to contribute to this

The following people from multiple organizations have contributed to this project:

* (Ventana Micro Systems)[https://www.ventanamicro.com]
* (Arup Chakraborty)[https://github.com/arupc]
* [Ventana Micro Systems]([https://www.ventanamicro.com)
* [Arup Chakraborty](https://github.com/arupc)

* (MIPS)[https://mips.com]
* (Knute Lingaard)[https://github.com/klingaard]
* (Kathlene Magnus)[https://github.com/kathlenemagnus]
* [MIPS](https://mips.com)
* [Knute Lingaard](https://github.com/klingaard)
* [Kathlene Magnus](https://github.com/kathlenemagnus)

* (Condor Computing)[https://condorcomputing.com]
* (Jeff Nye)[https://github.com/jeffnye-gh]
* [Condor Computing](https://condorcomputing.com)
* [Jeff Nye](https://github.com/jeffnye-gh)

* (InCore Semiconductors)[https://incoresemi.com/]
* (Sai Govardhan)[https://github.com/govardhnn]
* [InCore Semiconductors](https://incoresemi.com/)
* [Sai Govardhan](https://github.com/govardhnn)

List is incomplete and more contributor names/organizations to be added.
34 changes: 17 additions & 17 deletions arches/isa_json/gen_uarch_rv64v_json.py
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Expand Up @@ -487,37 +487,37 @@
"vid.v" : {"pipe" : "vmask", "uop_gen" : "ELEMENTWISE", "latency" : 1},

# Vector Permutation Instructions: Integer Scalar Move Instructions
"vmv.x.s" : {"pipe" : "v2s", "uop_gen" : "NONE", "latency" : 1},
"vmv.s.x" : {"pipe" : "vmv", "uop_gen" : "NONE", "latency" : 1},
"vmv.x.s" : {"pipe" : "v2s", "uop_gen" : "SCALAR_MOVE", "latency" : 1},
"vmv.s.x" : {"pipe" : "vmv", "uop_gen" : "SCALAR_MOVE", "latency" : 1},

# Vector Permutation Instructions: Floating-Point Scalar Move Instructions
"vfmv.f.s" : {"pipe" : "v2s", "uop_gen" : "NONE", "latency" : 1},
"vfmv.s.f" : {"pipe" : "vmv", "uop_gen" : "NONE", "latency" : 1},
"vfmv.f.s" : {"pipe" : "v2s", "uop_gen" : "SCALAR_MOVE", "latency" : 1},
"vfmv.s.f" : {"pipe" : "vmv", "uop_gen" : "SCALAR_MOVE", "latency" : 1},

# Vector Permutation Instructions: Vector Slide Instructions
"vslideup.vx" : {"pipe" : "vpermute", "uop_gen" : "PERMUTE", "latency" : 6},
"vslideup.vi" : {"pipe" : "vpermute", "uop_gen" : "PERMUTE", "latency" : 6},
"vslidedown.vx" : {"pipe" : "vpermute", "uop_gen" : "PERMUTE", "latency" : 6},
"vslidedown.vi" : {"pipe" : "vpermute", "uop_gen" : "PERMUTE", "latency" : 6},
"vslideup.vx" : {"pipe" : "vpermute", "uop_gen" : "SLIDEUP", "latency" : 6},
"vslideup.vi" : {"pipe" : "vpermute", "uop_gen" : "SLIDEUP", "latency" : 6},
"vslidedown.vx" : {"pipe" : "vpermute", "uop_gen" : "SLIDEDOWN", "latency" : 6},
"vslidedown.vi" : {"pipe" : "vpermute", "uop_gen" : "SLIDEDOWN", "latency" : 6},
"vslide1up.vx" : {"pipe" : "vint", "uop_gen" : "SLIDE1UP", "latency" : 1},
"vfslide1up.vf" : {"pipe" : "vfloat", "uop_gen" : "SLIDE1UP", "latency" : 1},
"vslide1down.vx" : {"pipe" : "vint", "uop_gen" : "SLIDE1DOWN", "latency" : 1},
"vfslide1down.vf": {"pipe" : "vfloat", "uop_gen" : "SLIDE1DOWN", "latency" : 1},

# Vector Permutation Instructions: Vector Register Gather Instructions
"vrgather.vv" : {"pipe" : "vpermute", "uop_gen" : "PERMUTE", "latency" : 6},
"vrgatherei16.vv": {"pipe" : "vpermute", "uop_gen" : "PERMUTE", "latency" : 6},
"vrgather.vx" : {"pipe" : "vpermute", "uop_gen" : "PERMUTE", "latency" : 6},
"vrgather.vi" : {"pipe" : "vpermute", "uop_gen" : "PERMUTE", "latency" : 6},
"vrgather.vv" : {"pipe" : "vpermute", "uop_gen" : "RGATHER", "latency" : 6},
"vrgatherei16.vv": {"pipe" : "vpermute", "uop_gen" : "RGATHER", "latency" : 6},
"vrgather.vx" : {"pipe" : "vpermute", "uop_gen" : "RGATHER", "latency" : 6},
"vrgather.vi" : {"pipe" : "vpermute", "uop_gen" : "RGATHER", "latency" : 6},

# Vector Permutation Instructions: Vector Compress Instruction
"vcompress.vm" : {"pipe" : "vpermute", "uop_gen" : "PERMUTE", "latency" : 6},
"vcompress.vm" : {"pipe" : "vpermute", "uop_gen" : "COMPRESS", "latency" : 6},

# Vector Permutation Instructions: Whole Vector Register Move
"vmv1r.v" : {"pipe" : "vmv", "uop_gen" : "ELEMENTWISE", "latency" : 1},
"vmv2r.v" : {"pipe" : "vmv", "uop_gen" : "ELEMENTWISE", "latency" : 1},
"vmv4r.v" : {"pipe" : "vmv", "uop_gen" : "ELEMENTWISE", "latency" : 1},
"vmv8r.v" : {"pipe" : "vmv", "uop_gen" : "ELEMENTWISE", "latency" : 1},
"vmv1r.v" : {"pipe" : "vmv", "uop_gen" : "WHOLE_REG_MOVE", "latency" : 1},
"vmv2r.v" : {"pipe" : "vmv", "uop_gen" : "WHOLE_REG_MOVE", "latency" : 1},
"vmv4r.v" : {"pipe" : "vmv", "uop_gen" : "WHOLE_REG_MOVE", "latency" : 1},
"vmv8r.v" : {"pipe" : "vmv", "uop_gen" : "WHOLE_REG_MOVE", "latency" : 1},
}

# Get a list of all vector insts from Mavis
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52 changes: 26 additions & 26 deletions arches/isa_json/olympia_uarch_rv64v.json
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Expand Up @@ -104,8 +104,8 @@
{
"mnemonic": "vcompress.vm",
"pipe": "vpermute",
"uop_gen": "PERMUTE",
"latency": 4
"uop_gen": "COMPRESS",
"latency": 6
},
{
"mnemonic": "vdiv.vv",
Expand Down Expand Up @@ -302,13 +302,13 @@
{
"mnemonic": "vfmv.f.s",
"pipe": "v2s",
"uop_gen": "NONE",
"uop_gen": "SCALAR_MOVE",
"latency": 1
},
{
"mnemonic": "vfmv.s.f",
"pipe": "vmv",
"uop_gen": "NONE",
"uop_gen": "SCALAR_MOVE",
"latency": 1
},
{
Expand Down Expand Up @@ -1328,7 +1328,7 @@
{
"mnemonic": "vmv.s.x",
"pipe": "vmv",
"uop_gen": "NONE",
"uop_gen": "SCALAR_MOVE",
"latency": 1
},
{
Expand All @@ -1352,31 +1352,31 @@
{
"mnemonic": "vmv.x.s",
"pipe": "v2s",
"uop_gen": "NONE",
"uop_gen": "SCALAR_MOVE",
"latency": 1
},
{
"mnemonic": "vmv1r.v",
"pipe": "vmv",
"uop_gen": "ELEMENTWISE",
"uop_gen": "WHOLE_REG_MOVE",
"latency": 1
},
{
"mnemonic": "vmv2r.v",
"pipe": "vmv",
"uop_gen": "ELEMENTWISE",
"uop_gen": "WHOLE_REG_MOVE",
"latency": 1
},
{
"mnemonic": "vmv4r.v",
"pipe": "vmv",
"uop_gen": "ELEMENTWISE",
"uop_gen": "WHOLE_REG_MOVE",
"latency": 1
},
{
"mnemonic": "vmv8r.v",
"pipe": "vmv",
"uop_gen": "ELEMENTWISE",
"uop_gen": "WHOLE_REG_MOVE",
"latency": 1
},
{
Expand Down Expand Up @@ -1586,26 +1586,26 @@
{
"mnemonic": "vrgather.vi",
"pipe": "vpermute",
"uop_gen": "PERMUTE",
"latency": 4
"uop_gen": "RGATHER",
"latency": 6
},
{
"mnemonic": "vrgather.vv",
"pipe": "vpermute",
"uop_gen": "PERMUTE",
"latency": 4
"uop_gen": "RGATHER",
"latency": 6
},
{
"mnemonic": "vrgather.vx",
"pipe": "vpermute",
"uop_gen": "PERMUTE",
"latency": 4
"uop_gen": "RGATHER",
"latency": 6
},
{
"mnemonic": "vrgatherei16.vv",
"pipe": "vpermute",
"uop_gen": "PERMUTE",
"latency": 4
"uop_gen": "RGATHER",
"latency": 6
},
{
"mnemonic": "vrsub.vi",
Expand Down Expand Up @@ -1766,26 +1766,26 @@
{
"mnemonic": "vslidedown.vi",
"pipe": "vpermute",
"uop_gen": "PERMUTE",
"latency": 4
"uop_gen": "SLIDEDOWN",
"latency": 6
},
{
"mnemonic": "vslidedown.vx",
"pipe": "vpermute",
"uop_gen": "PERMUTE",
"latency": 4
"uop_gen": "SLIDEDOWN",
"latency": 6
},
{
"mnemonic": "vslideup.vi",
"pipe": "vpermute",
"uop_gen": "PERMUTE",
"latency": 4
"uop_gen": "SLIDEUP",
"latency": 6
},
{
"mnemonic": "vslideup.vx",
"pipe": "vpermute",
"uop_gen": "PERMUTE",
"latency": 4
"uop_gen": "SLIDEUP",
"latency": 6
},
{
"mnemonic": "vsll.vi",
Expand Down
10 changes: 8 additions & 2 deletions core/InstArchInfo.cpp
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Expand Up @@ -75,10 +75,16 @@ namespace olympia
{"REDUCTION", InstArchInfo::UopGenType::REDUCTION},
{"REDUCTION_WIDE", InstArchInfo::UopGenType::REDUCTION_WIDE},
{"INT_EXT", InstArchInfo::UopGenType::INT_EXT},
{"SLIDEUP", InstArchInfo::UopGenType::SLIDEUP},
{"SLIDEDOWN", InstArchInfo::UopGenType::SLIDEDOWN},
{"SLIDE1UP", InstArchInfo::UopGenType::SLIDE1UP},
{"SLIDE1DOWN", InstArchInfo::UopGenType::SLIDE1DOWN},
{"PERMUTE", InstArchInfo::UopGenType::PERMUTE},
{"NONE", InstArchInfo::UopGenType::NONE}};
{"SCALAR_MOVE", InstArchInfo::UopGenType::SCALAR_MOVE},
{"RGATHER", InstArchInfo::UopGenType::RGATHER},
{"COMPRESS", InstArchInfo::UopGenType::COMPRESS},
{"WHOLE_REG_MOVE", InstArchInfo::UopGenType::WHOLE_REG_MOVE},
{"NONE", InstArchInfo::UopGenType::NONE},
};

void InstArchInfo::update(const nlohmann::json & jobj)
{
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7 changes: 6 additions & 1 deletion core/InstArchInfo.hpp
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Expand Up @@ -90,9 +90,14 @@ namespace olympia
REDUCTION,
REDUCTION_WIDE,
INT_EXT,
SLIDEUP,
SLIDEDOWN,
SLIDE1UP,
SLIDE1DOWN,
PERMUTE,
SCALAR_MOVE,
RGATHER,
COMPRESS,
WHOLE_REG_MOVE,
NONE,
UNKNOWN
};
Expand Down
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