| 1 | # SPDX-License-Identifier: Apache-2.0 |
| 2 | # SPDX-FileCopyrightText: Copyright contributors to the vLLM project |
| 3 | |
| 4 | from cutlass import Int32 |
| 5 | from cutlass._mlir.dialects import nvvm |
| 6 | from cutlass.cutlass_dsl import dsl_user_op |
| 7 | |
| 8 | _SPACE_MAP = { |
| 9 | "cta": nvvm.MBarrierSpaceKind.CTA, |
| 10 | "cluster": nvvm.MBarrierSpaceKind.CLUSTER, |
| 11 | } |
| 12 | |
| 13 | _MEMORY_ORDER_MAP = { |
| 14 | "weak": nvvm.MemOrderKind.WEAK, |
| 15 | "relaxed": nvvm.MemOrderKind.RELAXED, |
| 16 | "acquire": nvvm.MemOrderKind.ACQUIRE, |
| 17 | "release": nvvm.MemOrderKind.RELEASE, |
| 18 | "acq_rel": nvvm.MemOrderKind.ACQ_REL, |
| 19 | } |
| 20 | |
| 21 | |
| 22 | @dsl_user_op |
| 23 | def arrive(mbar, space: str = "cta", order: str = "relaxed", *, loc=None, ip=None): |
| 24 | nvvm.mbarrier_txn( |
| 25 | mbar.to_llvm_ptr(loc=loc, ip=ip), |
| 26 | Int32(1).ir_value(loc=loc, ip=ip), |
| 27 | kind=nvvm.MBarrierTxnKind.ARRIVE, |
| 28 | space=_SPACE_MAP[space], |
| 29 | order=_MEMORY_ORDER_MAP[order], |
| 30 | loc=loc, |
| 31 | ip=ip, |
| 32 | ) |
| 33 | |
| 34 | |
| 35 | @dsl_user_op |
| 36 | def arrive_expect_tx( |
| 37 | mbar, size, space: str = "cta", order: str = "relaxed", *, loc=None, ip=None |
| 38 | ): |
| 39 | nvvm.mbarrier_txn( |
| 40 | mbar.to_llvm_ptr(loc=loc, ip=ip), |
| 41 | Int32(size).ir_value(loc=loc, ip=ip), |
| 42 | kind=nvvm.MBarrierTxnKind.ARRIVE_EXPECT_TX, |
| 43 | space=_SPACE_MAP[space], |
| 44 | order=_MEMORY_ORDER_MAP[order], |
| 45 | loc=loc, |
| 46 | ip=ip, |
| 47 | ) |