DMA network deadlock potential #15
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zarubaf
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this issue
in pulp-platform/snitch
Sep 2, 2021
Update code from upstream repository https://github.com/pulp- platform/common_cells.git to revision 06e519abc4b2324287194519bce2f2ed9d262476 * sync: Parameterize reset value (#122) (Florian Zaruba) * isochronous_4phase_handshake: Add implementation (#100) (Florian Zaruba) * src/id_queue.sv: Enables simultaneous input and output (#106) (Flavien Solt) * Add `cc_onehot` module (#121) (Florian Zaruba) * Release v1.22.1 (Florian Zaruba) * Fix port list copy paste bug (#120) (Manuel Eggimann) * Release v1.22.0 (Florian Zaruba) * Add `flushable_spill_register` (#119) (Florian Zaruba) * registers: Optionally disable synopsys macros (#118) (Florian Zaruba) Signed-off-by: Florian Zaruba <[email protected]>
zarubaf
referenced
this issue
in pulp-platform/snitch
Sep 2, 2021
* Remove common_cells patches * Update pulp_platform_common_cells to 06e519a Update code from upstream repository https://github.com/pulp- platform/common_cells.git to revision 06e519abc4b2324287194519bce2f2ed9d262476 * sync: Parameterize reset value (#122) (Florian Zaruba) * isochronous_4phase_handshake: Add implementation (#100) (Florian Zaruba) * src/id_queue.sv: Enables simultaneous input and output (#106) (Flavien Solt) * Add `cc_onehot` module (#121) (Florian Zaruba) * Release v1.22.1 (Florian Zaruba) * Fix port list copy paste bug (#120) (Manuel Eggimann) * Release v1.22.0 (Florian Zaruba) * Add `flushable_spill_register` (#119) (Florian Zaruba) * registers: Optionally disable synopsys macros (#118) (Florian Zaruba) Signed-off-by: Florian Zaruba <[email protected]> * Re-name `onehot` to `cc_onehot`
paulsc96
referenced
this issue
Jul 11, 2023
* Remove common_cells patches * Update pulp_platform_common_cells to 06e519a Update code from upstream repository https://github.com/pulp- platform/common_cells.git to revision 06e519abc4b2324287194519bce2f2ed9d262476 * sync: Parameterize reset value (pulp-platform/snitch#122) (Florian Zaruba) * isochronous_4phase_handshake: Add implementation (pulp-platform/snitch#100) (Florian Zaruba) * src/id_queue.sv: Enables simultaneous input and output (pulp-platform/snitch#106) (Flavien Solt) * Add `cc_onehot` module (pulp-platform/snitch#121) (Florian Zaruba) * Release v1.22.1 (Florian Zaruba) * Fix port list copy paste bug (pulp-platform/snitch#120) (Manuel Eggimann) * Release v1.22.0 (Florian Zaruba) * Add `flushable_spill_register` (pulp-platform/snitch#119) (Florian Zaruba) * registers: Optionally disable synopsys macros (pulp-platform/snitch#118) (Florian Zaruba) Signed-off-by: Florian Zaruba <[email protected]> * Re-name `onehot` to `cc_onehot`
paulsc96
referenced
this issue
Jul 11, 2023
* Remove common_cells patches * Update pulp_platform_common_cells to 06e519a Update code from upstream repository https://github.com/pulp- platform/common_cells.git to revision 06e519abc4b2324287194519bce2f2ed9d262476 * sync: Parameterize reset value ([pulp-platform/snitch#122](#122s)) (Florian Zaruba) * isochronous_4phase_handshake: Add implementation ([pulp-platform/snitch#100](#100s)) (Florian Zaruba) * src/id_queue.sv: Enables simultaneous input and output ([pulp-platform/snitch#106](#106s)) (Flavien Solt) * Add `cc_onehot` module ([pulp-platform/snitch#121](#121s)) (Florian Zaruba) * Release v1.22.1 (Florian Zaruba) * Fix port list copy paste bug ([pulp-platform/snitch#120](#120s)) (Manuel Eggimann) * Release v1.22.0 (Florian Zaruba) * Add `flushable_spill_register` ([pulp-platform/snitch#119](#119s)) (Florian Zaruba) * registers: Optionally disable synopsys macros ([pulp-platform/snitch#118](#118s)) (Florian Zaruba) Signed-off-by: Florian Zaruba <[email protected]> * Re-name `onehot` to `cc_onehot`
paulsc96
referenced
this issue
Jul 11, 2023
* Remove common_cells patches * Update pulp_platform_common_cells to 06e519a Update code from upstream repository https://github.com/pulp- platform/common_cells.git to revision 06e519abc4b2324287194519bce2f2ed9d262476 * sync: Parameterize reset value (pulp-platform/snitch#122) (Florian Zaruba) * isochronous_4phase_handshake: Add implementation (pulp-platform/snitch#100) (Florian Zaruba) * src/id_queue.sv: Enables simultaneous input and output (pulp-platform/snitch#106) (Flavien Solt) * Add `cc_onehot` module (pulp-platform/snitch#121) (Florian Zaruba) * Release v1.22.1 (Florian Zaruba) * Fix port list copy paste bug (pulp-platform/snitch#120) (Manuel Eggimann) * Release v1.22.0 (Florian Zaruba) * Add `flushable_spill_register` (pulp-platform/snitch#119) (Florian Zaruba) * registers: Optionally disable synopsys macros (pulp-platform/snitch#118) (Florian Zaruba) Signed-off-by: Florian Zaruba <[email protected]> * Re-name `onehot` to `cc_onehot`
colluca
referenced
this issue
Jul 11, 2023
* Remove common_cells patches * Update pulp_platform_common_cells to 06e519a Update code from upstream repository https://github.com/pulp- platform/common_cells.git to revision 06e519abc4b2324287194519bce2f2ed9d262476 * sync: Parameterize reset value (pulp-platform/snitch#122) (Florian Zaruba) * isochronous_4phase_handshake: Add implementation (pulp-platform/snitch#100) (Florian Zaruba) * src/id_queue.sv: Enables simultaneous input and output (pulp-platform/snitch#106) (Flavien Solt) * Add `cc_onehot` module (pulp-platform/snitch#121) (Florian Zaruba) * Release v1.22.1 (Florian Zaruba) * Fix port list copy paste bug (pulp-platform/snitch#120) (Manuel Eggimann) * Release v1.22.0 (Florian Zaruba) * Add `flushable_spill_register` (pulp-platform/snitch#119) (Florian Zaruba) * registers: Optionally disable synopsys macros (pulp-platform/snitch#118) (Florian Zaruba) Signed-off-by: Florian Zaruba <[email protected]> * Re-name `onehot` to `cc_onehot`
paulsc96
referenced
this issue
Jul 11, 2023
* Remove common_cells patches * Update pulp_platform_common_cells to 06e519a Update code from upstream repository https://github.com/pulp- platform/common_cells.git to revision 06e519abc4b2324287194519bce2f2ed9d262476 * sync: Parameterize reset value (pulp-platform/snitch#122) (Florian Zaruba) * isochronous_4phase_handshake: Add implementation (pulp-platform/snitch#100) (Florian Zaruba) * src/id_queue.sv: Enables simultaneous input and output (pulp-platform/snitch#106) (Flavien Solt) * Add `cc_onehot` module (pulp-platform/snitch#121) (Florian Zaruba) * Release v1.22.1 (Florian Zaruba) * Fix port list copy paste bug (pulp-platform/snitch#120) (Manuel Eggimann) * Release v1.22.0 (Florian Zaruba) * Add `flushable_spill_register` (pulp-platform/snitch#119) (Florian Zaruba) * registers: Optionally disable synopsys macros (pulp-platform/snitch#118) (Florian Zaruba) Signed-off-by: Florian Zaruba <[email protected]> * Re-name `onehot` to `cc_onehot`
paulsc96
referenced
this issue
Jul 11, 2023
* Remove common_cells patches * Update pulp_platform_common_cells to 06e519a Update code from upstream repository https://github.com/pulp- platform/common_cells.git to revision 06e519abc4b2324287194519bce2f2ed9d262476 * sync: Parameterize reset value (pulp-platform/snitch#122) (Florian Zaruba) * isochronous_4phase_handshake: Add implementation (pulp-platform/snitch#100) (Florian Zaruba) * src/id_queue.sv: Enables simultaneous input and output (pulp-platform/snitch#106) (Flavien Solt) * Add `cc_onehot` module (pulp-platform/snitch#121) (Florian Zaruba) * Release v1.22.1 (Florian Zaruba) * Fix port list copy paste bug (pulp-platform/snitch#120) (Manuel Eggimann) * Release v1.22.0 (Florian Zaruba) * Add `flushable_spill_register` (pulp-platform/snitch#119) (Florian Zaruba) * registers: Optionally disable synopsys macros (pulp-platform/snitch#118) (Florian Zaruba) Signed-off-by: Florian Zaruba <[email protected]> * Re-name `onehot` to `cc_onehot`
JosseVanDelm
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to JosseVanDelm/snitch_cluster
that referenced
this issue
Dec 11, 2023
* sw: Add snax-mac.c test * sw: Add data for snax-mac test * Add Makefile for compiling snax-mac * sw: Add snax-mac to list of to-compile builds * sw: Re-align data for lint * sw: Fix lint for snax-mac.c * lint: Exclude SNAX tests from license checking * sw: Swap snrt.h and data.h positions * sw: Fix lint for data.h * sw: Fix lint for snax-mac.c * sw: Code cleaning and fix comments for clarity * tests: Add snax-mac to snax-run.yaml * Revert "tests: Add snax-mac to snax-run.yaml" This reverts commit 150b91a. * sw: Fix comments for snax-mac * Add snax-rum.yaml for the application test list. * ci: Modify test in CI to use snax-run.yaml for the apps side
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Due to the handling of atomics, there is a potential of deadlocking the DMA network if the DMA can't issue any more writes because the reads are stalled on
axi_demux.https://github.com/pulp-platform/axi/blob/dda3876318dbf67305e2820ef47524bfa94b67bc/src/axi_demux.sv#L200
Since we have two dedicated networks, a narrow one (usually single core requests) and a wide one (burst-type transfers) we do not necessarily need atomic support on the wide network. With atomics disabled, the
axi_demuxcan drop the dependency between read and write channels.pulp-platform/snitch#116 as a reference where this happened + short-term mitigation by increasing the transaction buffers.
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