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Replacing L1 base address increment instructions with CFGSHIFTMASK #17723
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rtawfik01
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bbradelTT
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dgomezTT
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…17723) ### Ticket [Link to Github Issue](tenstorrent/tt-llk-bh#4) ### Problem description Blackhole has new `CFGSHIFTMASK` that can update addresses for the unpacker instructions inside the mop/replay buffers. If an operation is unpacker bound, then using this instruction should increase performance. ### What's changed Replaced L1 base address increment code that uses cfg read/write and tdma gpr operations with the new `CFGSHIFTMASK` instruction in the unpack AB matmul llk api. This replacement saves 6 instructions in the mop replay buffer. No notable performance improvements. Only affects BH and addresses an issue in BH third party repo. ### Checklist - [x] [All post commit](https://github.com/tenstorrent/tt-metal/actions/workflows/all-post-commit-workflows.yaml) [CI passes](https://github.com/tenstorrent/tt-metal/actions/runs/13399863311) - [x] [Blackhole Post commit](https://github.com/tenstorrent/tt-metal/actions/workflows/blackhole-post-commit.yaml) [CI passes](https://github.com/tenstorrent/tt-metal/actions/runs/13399865409) (if applicable) - [ ] [Model regression](https://github.com/tenstorrent/tt-metal/actions/workflows/perf-models.yaml) CI passes (if applicable) - [ ] [Device performance regression](https://github.com/tenstorrent/tt-metal/actions/workflows/perf-device-models.yaml) CI passes (if applicable) - [ ] **(For models and ops writers)** Full [new models tests](https://github.com/tenstorrent/tt-metal/actions/workflows/full-new-models-suite.yaml) CI passes (if applicable) - [ ] New/Existing tests provide coverage for changes
hschoi4448
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Feb 20, 2025
…17723) ### Ticket [Link to Github Issue](tenstorrent/tt-llk-bh#4) ### Problem description Blackhole has new `CFGSHIFTMASK` that can update addresses for the unpacker instructions inside the mop/replay buffers. If an operation is unpacker bound, then using this instruction should increase performance. ### What's changed Replaced L1 base address increment code that uses cfg read/write and tdma gpr operations with the new `CFGSHIFTMASK` instruction in the unpack AB matmul llk api. This replacement saves 6 instructions in the mop replay buffer. No notable performance improvements. Only affects BH and addresses an issue in BH third party repo. ### Checklist - [x] [All post commit](https://github.com/tenstorrent/tt-metal/actions/workflows/all-post-commit-workflows.yaml) [CI passes](https://github.com/tenstorrent/tt-metal/actions/runs/13399863311) - [x] [Blackhole Post commit](https://github.com/tenstorrent/tt-metal/actions/workflows/blackhole-post-commit.yaml) [CI passes](https://github.com/tenstorrent/tt-metal/actions/runs/13399865409) (if applicable) - [ ] [Model regression](https://github.com/tenstorrent/tt-metal/actions/workflows/perf-models.yaml) CI passes (if applicable) - [ ] [Device performance regression](https://github.com/tenstorrent/tt-metal/actions/workflows/perf-device-models.yaml) CI passes (if applicable) - [ ] **(For models and ops writers)** Full [new models tests](https://github.com/tenstorrent/tt-metal/actions/workflows/full-new-models-suite.yaml) CI passes (if applicable) - [ ] New/Existing tests provide coverage for changes
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Ticket
Link to Github Issue
Problem description
Blackhole has new
CFGSHIFTMASK
that can update addresses for the unpacker instructions inside the mop/replay buffers. If an operation is unpacker bound, then using this instruction should increase performance.What's changed
Replaced L1 base address increment code that uses cfg read/write and tdma gpr operations with the new
CFGSHIFTMASK
instruction in the unpack AB matmul llk api. This replacement saves 6 instructions in the mop replay buffer. No notable performance improvements.Only affects BH and addresses an issue in BH third party repo.
Checklist