pto.mte_l1_l0a

pto.mte_l1_l0a is part of Cube Data Movement Ops.

Summary

Load a logical %m x %k left tile from L1 l1 into l0a for pto.mad* consumption. The source must already be in cube-fractal NZ layout; this op does not convert arbitrary row-major matrices. Use pto.mte_gm_l1_frac to repack ND/DN source data first.

Mechanism

The op moves an L1 cube-fractal tile into the L0A operand domain. The destination layout follows NZ Fractal Layout for L0A (K1 M1 M0 K0, FRACTAL_NZ on A5 / FRACTAL_ZZ on A3).

If transpose = true, the selected logical source tile is transposed before placement in the destination operand domain. Omitting the attribute means transpose = false.

Syntax

pto.mte_l1_l0a %src, %dst, %m, %k
  : !pto.ptr<T, l1>, !pto.ptr<T, l0a>, i64, i64

Inputs

Parameter Width Description
%src ptr L1 cube-fractal source tile in l1
%dst ptr Left operand destination in l0a
%m i64 Logical M extent
%k i64 Logical K extent
transpose attr Optional boolean source-tile transpose before destination placement

Expected Outputs

Result Type Description
None — Writes the L0A tile that subsequent pto.mad* will read.

Side Effects

Reads L1; writes L0A. Engages the AIC MTE1 pipe.

Constraints

Constraints

  • %src must be in l1, %dst must be in l0a.
  • %src and %dst must satisfy the target alignment for Cube tile loads.
  • transpose = true requires a tile shape supported by the element-type transpose granularity.

Examples

pto.mte_l1_l0a %l1_a, %l0a, %c16_i64, %c32_i64
  : !pto.ptr<f16, l1>, !pto.ptr<f16, l0a>, i64, i64