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ggml-hexagon: add PAD op HVX kernel (#23078)

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* ggml-hexagon: add PAD op HVX kernel

Implements GGML_OP_PAD on the Hexagon HTP backend using HVX vectorized
kernels. Supports zero-padding and circular padding across all 4 tensor
dimensions.

* hex-ggml: remove duplicate op cases (merge conflict)

* hex-pad: fix editorconfig checks and macro alignment

---------

Co-authored-by: Max Krasnyansky <maxk@qti.qualcomm.com>
This commit is contained in:
Pranav Dhinakar
2026-05-18 13:39:36 -07:00
committed by GitHub
co-authored by Max Krasnyansky
parent 5cbaa5e69e
commit b7340443d4
6 changed files with 569 additions and 0 deletions
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ggml/src/ggml-hexagon/ggml-hexagon.cpp
+18
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@@ -2744,6 +2744,18 @@ static bool ggml_hexagon_supported_ssm_conv(const struct ggml_hexagon_session *
return true;
}
static bool ggml_hexagon_supported_pad(const struct ggml_hexagon_session * sess, const struct ggml_tensor * op) {
const struct ggml_tensor * src0 = op->src[0];
const struct ggml_tensor * dst = op;
if (src0->type != GGML_TYPE_F32 || dst->type != GGML_TYPE_F32) {
return false;
}
GGML_UNUSED(sess);
return true;
}
static bool ggml_hexagon_supported_cumsum(const struct ggml_hexagon_session * sess, const struct ggml_tensor * op) {
const struct ggml_tensor * src0 = op->src[0];
const struct ggml_tensor * dst = op;
@@ -2857,6 +2869,8 @@ static htp_op_code op_remap_to_htp(const ggml_tensor * t) {
case GGML_OP_FILL: return HTP_OP_FILL;
case GGML_OP_DIAG: return HTP_OP_DIAG;
case GGML_OP_SOLVE_TRI: return HTP_OP_SOLVE_TRI;
case GGML_OP_PAD: return HTP_OP_PAD;
case GGML_OP_UNARY:
switch (ggml_get_unary_op(t)) {
case GGML_UNARY_OP_SILU: return HTP_OP_UNARY_SILU;
@@ -3416,6 +3430,10 @@ static bool ggml_backend_hexagon_device_supports_op(ggml_backend_dev_t dev, cons
supp = ggml_hexagon_supported_solve_tri(sess, op);
break;
case GGML_OP_PAD:
supp = ggml_hexagon_supported_pad(sess, op);
break;
default:
break;
}