Including mixed quant Conv1D op in Jarvis (#14865)

Summary:

# Context

With the goal of porting mHML on Executorch, a few operators are missing.
The main focus is on improving performance for the operators used by the model.

# Summary

This diff includes a general and HiFi4 optimized Convolution 1D operator.
Specifically, it adds both a standard Convolution 1D implementation and a version optimized for HiFi4 DSPs, ensuring better performance on supported hardware.


---
#hthtemplate

Reviewed By: skrtskrtfb

Differential Revision: D81652570

Author: Marco Giordano

backends/cadence/aot/functions_hifi.yaml

@@ -553,3 +553,8 @@
   kernels:
     - arg_meta: null
       kernel_name: impl::HiFi::quantized_w8a32_linear_out
+
+- func: cadence::quantized_w8a32_conv.out(Tensor input, Tensor weight, float w_scale, Tensor bias, float b_scale, *, Tensor(a!) output) -> Tensor(a!)
+  kernels:
+    - arg_meta: null
+      kernel_name: impl::HiFi::quantized_w8a32_conv_out

backends/cadence/aot/ops_registrations.py

@@ -571,6 +571,12 @@
     "quantized_w8a32_linear.out(Tensor input, Tensor weight, float w_scale, Tensor bias, float b_scale, *, Tensor(a!) output) -> Tensor(a!)"
 )
 
+lib.define(
+    "quantized_w8a32_conv(Tensor input, Tensor weight, float w_scale, Tensor bias, float b_scale) -> Tensor"
+)
+lib.define(
+    "quantized_w8a32_conv.out(Tensor input, Tensor weight, float w_scale, Tensor bias, float b_scale, *, Tensor(a!) output) -> Tensor(a!)"
+)
 
 # Custom ops with aten namespace. Need to specify the lib var as FRAGMENT type as aten library is already defined
 aten_lib = Library("aten", "FRAGMENT")
@@ -2589,3 +2595,32 @@ def quantized_w8a32_linear_meta(
     assert src_shape[-1] == weight_shape[-1]
     src_shape[-1] = weight_shape[0]
     return src.new_empty(src_shape, dtype=src.dtype)
+
+
+@register_fake("cadence::quantized_w8a32_conv")
+def quantized_w8a32_conv_meta(
+    src: torch.Tensor,
+    weight: torch.Tensor,
+    w_scale: float,
+    bias: torch.Tensor,
+    b_scale: float,
+) -> torch.Tensor:
+    # src comes in shape [batch, in_channel, in_length]
+    # weight comes in shape [out_ch, in_ch, kernel_dim]
+    # output comes in empty with shape [batch, out_ch, in_length - kernel_dim + 1]
+    assert len(src.shape) == 3
+
+    kernel_size, out_channels, in_channels = weight.shape
+    assert in_channels == src.shape[-1]
+
+    # Compute the output tensor size
+    output_size = get_conv1d_output_size(
+        src.permute(0, 2, 1).shape,
+        out_channels,
+        stride=1,
+        padding=0,
+        dilation=1,
+        kernel_size=kernel_size,
+        channel_last=False,
+    )
+    return src.new_empty(output_size, dtype=src.dtype)

backends/cadence/aot/quantizer/fusion_pass.py

@@ -24,6 +24,7 @@
     LayerNormPattern,
     LinearPattern,
     MatmulPattern,
+    MixedW8A32ConvPattern,
     MixedW8A32LinearPattern,
     ReluPattern0,
     ReluPattern1,
@@ -478,6 +479,52 @@ def get_args_and_kwargs_softmax(
         out_zero_point_tensor,
     )
     kwargs = {}
+
+    return args, kwargs
+
+
+def get_args_and_kwargs_mixed_w8a32_conv(
+    graph_module: GraphModule,
+    other_inputs: List[fx.Node],
+    weights_inputs: List[fx.Node],
+    dequants_weights: List[fx.Node],
+    bias_inputs: List[fx.Node],
+    dequants_biases: List[fx.Node],
+    op_node: fx.Node,
+) -> Tuple[Tuple[ArgsType, ...], Dict[str, ArgsType]]:
+    # Stride, padding, dilation, groups not supported yet
+    if len(op_node.args) > 3:
+        assert op_node.args[3] == [1]  # Stride
+    if len(op_node.args) > 4:
+        assert op_node.args[4] == [0]  # Padding
+    if len(op_node.args) > 5:
+        assert op_node.args[5] == [1]  # Dilation
+    if len(op_node.args) > 6:
+        assert op_node.args[6] == 1  # Groups
+
+    assert len(dequants_weights) == 1
+    assert len(dequants_biases) == 1
+    W_scale_ = dequants_weights[0].args[1]
+    B_scale_ = dequants_biases[0].args[1]
+
+    transposed_inputs = graph_module.graph.call_function(
+        torch.ops.aten.permute.default,
+        (other_inputs[0], [0, 2, 1]),  # NCL -> NLC
+    )
+    transposed_weights = graph_module.graph.call_function(
+        torch.ops.aten.permute.default,
+        (weights_inputs[0], [2, 0, 1]),  # NCL -> NLC
+    )
+
+    args = (
+        transposed_inputs,
+        transposed_weights,
+        W_scale_,
+        bias_inputs[0],
+        B_scale_,
+    )
+    kwargs = {}
+
     return args, kwargs
 
 
@@ -650,6 +697,16 @@ def call(self, graph_module: fx.GraphModule) -> PassResult:  # noqa: C901
                             bias_inputs,
                             dequants_biases,
                         )
+                    elif isinstance(pattern, MixedW8A32ConvPattern):
+                        args, kwargs = get_args_and_kwargs_mixed_w8a32_conv(
+                            graph_module,
+                            other_inputs,
+                            weights_inputs,
+                            dequants_weights,
+                            bias_inputs,
+                            dequants_biases,
+                            op_node,
+                        )
 
                     fused = graph_module.graph.call_function(
                         pattern.replacement_op(),

backends/cadence/aot/quantizer/patterns.py

@@ -599,3 +599,65 @@ def get_anchors(
 
     def replacement_op(self) -> OpOverload:
         return torch.ops.cadence.quantized_w8a32_linear.default
+
+
+class MixedW8A32ConvPattern(QuantizationPattern):
+    def partition_types(self) -> List[OpOverload]:
+        return [torch.ops.aten.conv1d.default]
+
+    def get_anchors(
+        self, gm: fx.GraphModule, fused_partition: List[fx.GraphModule]
+    ) -> Tuple[PartitionAnchors, fx.Node]:
+        # pyre-ignore[29]
+        conv_layer = fused_partition[0].nodes[-1]
+
+        # Bail if the arguments have different shapes than expected
+        # Stride, padding, dilation and groups are not supported
+        if len(conv_layer.args) != 3 or len(conv_layer.kwargs) > 0:
+            return (
+                PartitionAnchors(
+                    empty=True,
+                ),
+                conv_layer,
+            )
+
+        cnn_weights = conv_layer.args[1]
+        if hasattr(cnn_weights.meta, "tensor_meta"):
+            cnn_weights_shape = cnn_weights.meta["tensor_meta"].shape
+            # Bail if the channels are not multiple of 4 (SIMD)
+            if cnn_weights_shape[0] % 4 != 0:
+                return (
+                    PartitionAnchors(
+                        empty=True,
+                    ),
+                    conv_layer,
+                )
+            if cnn_weights_shape[1] % 4 != 0:
+                return (
+                    PartitionAnchors(
+                        empty=True,
+                    ),
+                    conv_layer,
+                )
+            # Bail if the kernel size is not 3
+            if cnn_weights_shape[2] != 3:
+                return (
+                    PartitionAnchors(
+                        empty=True,
+                    ),
+                    conv_layer,
+                )
+
+        return (
+            PartitionAnchors(
+                inputs=[],
+                weights=[(conv_layer, 1)],
+                biases=[(conv_layer, 2)],
+                output=[],
+                others=[(conv_layer, 0)],
+            ),
+            conv_layer,
+        )
+
+    def replacement_op(self) -> OpOverload:
+        return torch.ops.cadence.quantized_w8a32_conv.default

backends/cadence/aot/quantizer/quantizer.py

@@ -24,6 +24,7 @@
     LayerNormPattern,
     LinearPattern,
     MatmulPattern,
+    MixedW8A32ConvPattern,
     MixedW8A32LinearPattern,
     QuantizationPattern,
     ReluPattern0,
@@ -321,6 +322,9 @@ def __init__(self) -> None:
         quantizers.append(
             CadenceAtenQuantizer(MixedW8A32LinearPattern(), qconfig_A32W8sym)
         )
+        quantizers.append(
+            CadenceAtenQuantizer(MixedW8A32ConvPattern(), qconfig_A32W8sym)
+        )
         super().__init__(quantizers)