From 722b43a20de4c13e4ce2b7e1a7cf1918a0695594 Mon Sep 17 00:00:00 2001
From: abetlen <abetlen@gmail.com>
Date: Sun, 28 Jun 2026 20:49:39 -0700
Subject: [PATCH] feat: update ggml to 0.15.3

---
 CHANGELOG.md |  1 +
 ggml/ggml.py | 48 ++++++++++++++++++++++++++++++++++++++++++++++--
 vendor/ggml  |  2 +-
 3 files changed, 48 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9d50cf5d..c2b0bbff 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+- feat: update vendored ggml to 0.15.3 and sync SYCL bindings by @abetlen in #177
 - docs: add JupyterLite browser playground by @abetlen in #173
 
 ## [0.0.44]
diff --git a/ggml/ggml.py b/ggml/ggml.py
index 3ff0fc1d..ac0f41ec 100644
--- a/ggml/ggml.py
+++ b/ggml/ggml.py
@@ -308,8 +308,8 @@ def f_(*args: Any, **kwargs: Any):
 
 GGML_VERSION_MAJOR = 0
 GGML_VERSION_MINOR = 15
-GGML_VERSION_PATCH = 2
-GGML_VERSION = "0.15.2"
+GGML_VERSION_PATCH = 3
+GGML_VERSION = "0.15.3"
 
 GGML_ROPE_TYPE_NORMAL = 0
 GGML_ROPE_TYPE_NEOX = 2
@@ -15251,6 +15251,50 @@ def ggml_backend_sycl_split_buffer_type(
     ...
 
 
+# GGML_API GGML_CALL void * ggml_backend_sycl_comm_init(ggml_backend_t * backends, size_t n_backends);
+@ggml_function(
+    "ggml_backend_sycl_comm_init",
+    [ctypes.POINTER(ggml_backend_t_ctypes), ctypes.c_size_t],
+    ctypes.c_void_p,
+    enabled=GGML_USE_SYCL_BACKEND,
+)
+def ggml_backend_sycl_comm_init(
+    backends: CtypesPointer[ggml_backend_t_ctypes],
+    n_backends: Union[ctypes.c_size_t, int],
+    /,
+) -> Optional[ctypes.c_void_p]:
+    ...
+
+
+# GGML_API GGML_CALL void ggml_backend_sycl_comm_free(void * comm_ctx);
+@ggml_function(
+    "ggml_backend_sycl_comm_free",
+    [ctypes.c_void_p],
+    None,
+    enabled=GGML_USE_SYCL_BACKEND,
+)
+def ggml_backend_sycl_comm_free(
+    comm_ctx: Optional[ctypes.c_void_p],
+    /,
+) -> None:
+    ...
+
+
+# GGML_API GGML_CALL bool ggml_backend_sycl_comm_allreduce_tensor(void * comm_ctx, struct ggml_tensor ** tensors);
+@ggml_function(
+    "ggml_backend_sycl_comm_allreduce_tensor",
+    [ctypes.c_void_p, ctypes.POINTER(ctypes.POINTER(ggml_tensor))],
+    ctypes.c_bool,
+    enabled=GGML_USE_SYCL_BACKEND,
+)
+def ggml_backend_sycl_comm_allreduce_tensor(
+    comm_ctx: Optional[ctypes.c_void_p],
+    tensors: CtypesPointer[ggml_tensor_p],
+    /,
+) -> bool:
+    ...
+
+
 # GGML_API GGML_CALL ggml_backend_buffer_type_t ggml_backend_sycl_host_buffer_type(void);
 @ggml_function(
     "ggml_backend_sycl_host_buffer_type",
diff --git a/vendor/ggml b/vendor/ggml
index 707321c4..eced84c8 160000
--- a/vendor/ggml
+++ b/vendor/ggml
@@ -1 +1 @@
-Subproject commit 707321c4cf6d21cb4bc831aa8b687dbf01a521ce
+Subproject commit eced84c86f8b012c752c016f7fe789adea168e1e