Merge branch 'upstream' into concedo_experimental

# Conflicts:
#	.github/workflows/build.yml
#	AUTHORS
#	ci/run.sh
#	docs/backend/SYCL.md
#	docs/build.md
#	docs/multimodal/minicpmo2.6.md
#	docs/multimodal/minicpmo4.0.md
#	docs/multimodal/minicpmv2.5.md
#	docs/multimodal/minicpmv2.6.md
#	docs/multimodal/minicpmv4.0.md
#	docs/multimodal/minicpmv4.5.md
#	docs/ops.md
#	docs/ops/SYCL.csv
#	docs/speculative.md
#	examples/deprecation-warning/README.md
#	examples/deprecation-warning/deprecation-warning.cpp
#	examples/model-conversion/Makefile
#	examples/model-conversion/scripts/causal/convert-model.sh
#	ggml/include/ggml-cann.h
#	ggml/src/ggml-cann/acl_tensor.cpp
#	ggml/src/ggml-cann/acl_tensor.h
#	ggml/src/ggml-cann/aclnn_ops.cpp
#	ggml/src/ggml-cann/aclnn_ops.h
#	ggml/src/ggml-cann/common.h
#	ggml/src/ggml-cann/ggml-cann.cpp
#	ggml/src/ggml-metal/CMakeLists.txt
#	ggml/src/ggml-opencl/ggml-opencl.cpp
#	ggml/src/ggml-opencl/kernels/concat.cl
#	ggml/src/ggml-opencl/kernels/repeat.cl
#	ggml/src/ggml-opencl/kernels/scale.cl
#	ggml/src/ggml-opencl/kernels/tanh.cl
#	ggml/src/ggml-sycl/CMakeLists.txt
#	ggml/src/ggml-sycl/dpct/helper.hpp
#	ggml/src/ggml-sycl/ggml-sycl.cpp
#	ggml/src/ggml-sycl/outprod.cpp
#	ggml/src/ggml-sycl/rope.cpp
#	ggml/src/ggml-sycl/wkv.cpp
#	src/llama-vocab.cpp
#	tests/test-autorelease.cpp
#	tests/test-backend-ops.cpp
#	tools/cvector-generator/pca.hpp
#	tools/export-lora/export-lora.cpp
#	tools/perplexity/README.md

ggml/include/ggml-cpu.h

@@ -19,6 +19,9 @@ extern "C" {
         // abort ggml_graph_compute when true
         ggml_abort_callback abort_callback;
         void *              abort_callback_data;
+
+        // use only reference implementations
+        bool use_ref;
     };
 
     // numa strategies
@@ -132,6 +135,8 @@ extern "C" {
     GGML_BACKEND_API void ggml_backend_cpu_set_threadpool    (ggml_backend_t backend_cpu, ggml_threadpool_t threadpool);
     GGML_BACKEND_API void ggml_backend_cpu_set_abort_callback(ggml_backend_t backend_cpu, ggml_abort_callback abort_callback, void * abort_callback_data);
 
+    GGML_BACKEND_API void ggml_backend_cpu_set_use_ref(ggml_backend_t backend_cpu, bool use_ref);
+
     GGML_BACKEND_API ggml_backend_reg_t ggml_backend_cpu_reg(void);
 
     GGML_BACKEND_API void ggml_cpu_fp32_to_fp32(const float *,       float *, int64_t);

ggml/include/ggml.h

@@ -6,7 +6,7 @@
 // This documentation is still a work in progress.
 // If you wish some specific topics to be covered, feel free to drop a comment:
 //
-//   https://github.com/ggerganov/whisper.cpp/issues/40
+//   https://github.com/ggml-org/whisper.cpp/issues/40
 //
 // ## Overview
 //