Struct hazardflow_designs::gemmini::execute::systolic_array::pe::PeS

pub struct PeS {
    pub reg1: S<ACC_BITS>,
    pub reg2: S<ACC_BITS>,
    pub propagate: Propagate,
}

PE state registers.

Each register stores values based on the dataflow and propagate signal:

• WS dataflow, preload: weight value for the next operation.
• WS dataflow, compute: weight value for the current operation.
• OS dataflow, preload: bias value for the next operation.
• OS dataflow, compute: partial sum value for the current operation.

NOTE: In OS dataflow, it outputs the matmul result when a change in the propagate value is detected.

Fields

reg1: S<ACC_BITS>

Register 1.

reg2: S<ACC_BITS>

Register 2.

propagate: Propagate

The propagate value comes from the previous input.

NOTE: In the PE logic, it is only used to check whether the current propagate value differs from the previous one.

Implementations

impl PeS

pub fn new(reg1: S<ACC_BITS>, reg2: S<ACC_BITS>, propagate: Propagate) -> Self

Creates a new PE state.

pub fn new_os( preload: S<OUTPUT_BITS>, partial_sum: S<OUTPUT_BITS>, propagate: Propagate ) -> Self

Creates a new PE state for OS dataflow.

Arguments

• preload: Bias value for the next operation.
• partial_sum: MAC result of the current operation.
• propagate: Propagate value.

pub fn new_ws( preload: S<INPUT_BITS>, weight: S<INPUT_BITS>, propagate: Propagate ) -> Self

Creates a new PE state for WS dataflow.

Arguments

• preload: Weight value for the next operation.
• weight: Weight value for the current operation.
• propagate: Propagate value.

Trait Implementations

impl Clone for PeS

fn clone(&self) -> PeS

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PeS

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for PeS

fn default() -> PeS

Returns the “default value” for a type.

impl Copy for PeS