Add HMR unit#35

Merged

micprog merged 66 commits intomasterfrom

Aug 7, 2025

Commits on Aug 7, 2025

HMR: Add initial wrapper structure
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Integrated ECC-protected Recovery RF.
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Fix TMR and DMR assignments
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Add RapidRecovery parameter to en-/disable backup RF
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Added clock gating to lock unfaulty cores during recovery routine.

Yvan Tortorella
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Add parameter documentation
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Update TMR signalling
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Update signal alignments
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Add individual dmr controller (separated rapid-recovery)
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Add dmr and rapid-recovery configuration registers
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Update header file generation
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Fix configurable rapid-recovery assignments
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Fix connections for rapid-recovery
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Generating correct offsets in RF address generator.

Yvan Tortorella
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Properly connecting rapid recovery controller signals to recovery PC.

Yvan Tortorella
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Update shared_id selection for only TMR support
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Add synch request signals
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Move SP store reg from tmr to core registers
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Merged CSRs backup and recovery.
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Add multibit setback, enable ungroup setback
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Continually back up cores in interleaved mode
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Fix setback signals for proper ungrouping
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Making cleaner assignments for main_dmr_out bus.
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Adding first support for TMR rapid recovery (to be fixed).
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Ensure sw_synch interrupt stays 0 before boot
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Add response suppress module
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TMR: only trigger a single interrupt
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DMR: only trigger a single interrupt
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TMR: buffer cores_synch signal
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Connect rapid recovery synch signals
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HMR: fix minor DMR naming error
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HMR: Fix DMR setback connections
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Always backup when dmr/tmr is disabled
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Update response suppression to keep req until gnt
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Add modular hmr unit
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Fix lint error
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Fix ECC Manager configuration
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Add Corrector to generation script and update testbench

Luca Rufer
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Simplify sram wrap and add optional cut to RMW path
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WIP: integrated rapid recovery unit.

Yvan Tortorella
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Fix no-RR case
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Fixed assignment for default status backup if cores are not grouped.

Yvan Tortorella
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Made recovery RF FF-based.

Yvan Tortorella
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Use pipelined checker for core's backup bus.

Yvan Tortorella
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Store PR coming from IF stage if cores are in independent.

Yvan Tortorella
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[HMR] Fix mismatch count indexing
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Create redundant groups only if redundant modes are supported.

Yvan Tortorella
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Fix out-of-range indices when with a single DMR group.

Yvan Tortorella
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Enable usage of checkpoint register for DMR synchronization.

Yvan Tortorella
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Properly rename DMR registers in hmr_dmr_ctrl.

Yvan Tortorella
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Extend checker for separate AXI bus.

Yvan Tortorella
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Fix AXI DMR checker.

Yvan Tortorella
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Fix undefined assign if bus voters are not there.

Yvan Tortorella
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Add output signal to manifest that redundancy enabled.

Yvan Tortorella
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Pipeline in independend backup bus whem Rapid Recovery is enabled.

Yvan Tortorella
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Fix always comb.

Yvan Tortorella
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Add ACE buses to DMR checkers.

Yvan Tortorella
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Drive r/b_ready signals to default 1 for helper cores when DMR is enabled.

Yvan Tortorella
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Fix hmr_unit
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hmr_unit: remove custom AXI ports
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Add default output value parameters to allow non-zero defaults
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hmr_unit: Update doc, update status outputs
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Update ECC correctors
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Fix lint
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Fix lint
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Fix lint
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