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Arm backend: Add support in aot for direct drive #17100

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Merged
perheld merged 1 commit into from
Feb 4, 2026
Merged

Arm backend: Add support in aot for direct drive #17100

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16 changes: 15 additions & 1 deletion examples/arm/aot_arm_compiler.py
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Original file line number Diff line number Diff line change
Expand Up @@ -434,6 +434,7 @@ def get_compile_spec(
quantize: bool = False,
config: Optional[str] = None,
debug_mode: Optional[str] = None,
direct_drive: bool = False,
) -> TosaCompileSpec | EthosUCompileSpec | VgfCompileSpec:
compile_spec = None
if target.startswith("TOSA"):
Expand All @@ -446,6 +447,9 @@ def get_compile_spec(
extra_flags = ["--verbose-operators", "--verbose-cycle-estimate"]
if debug_mode is not None:
extra_flags.append("--enable-debug-db")
if direct_drive:
extra_flags.append("--separate-io-regions")
extra_flags.append("--cop-format=COP2")
compile_spec = EthosUCompileSpec(
target,
system_config=system_config,
Expand Down Expand Up @@ -616,6 +620,13 @@ def get_args():
choices=["json", "tosa"],
help="Flag to enable ATen-to-TOSA debug mode and dumping of Vela's debug database.",
)
parser.add_argument(
"--direct_drive",
action="store_true",
required=False,
default=False,
help="Flag for enabling direct drive.",
)
args = parser.parse_args()

if args.evaluate and (
Expand Down Expand Up @@ -762,6 +773,7 @@ def to_edge_TOSA_delegate(
args.quantize,
args.config,
args.enable_debug_mode,
args.direct_drive,
)

model_quant = None
Expand Down Expand Up @@ -801,6 +813,7 @@ def to_edge_no_delegate(
args.quantize,
args.config,
args.enable_debug_mode,
args.direct_drive,
)
model, exported_program = quantize_model(
args, model, example_inputs, compile_spec
Expand Down Expand Up @@ -877,7 +890,8 @@ def transform_for_cortex_m_backend(edge_program_manager, args):
exported_program, args, model, example_inputs
)

if args.target != "vgf":
# Cortex-m ops are never included in vgf or direct-drive
if args.target != "vgf" and not args.direct_drive:
# Transform so we can use ops from the Cortex M backend
edge = transform_for_cortex_m_backend(edge, args)

Expand Down
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