Merge branch 'upstream' into concedo_experimental

# Conflicts:
#	common/common.cpp
#	examples/batched-bench/batched-bench.cpp
#	examples/batched/batched.cpp
#	examples/export-lora/export-lora.cpp
#	examples/gritlm/gritlm.cpp
#	examples/parallel/parallel.cpp
#	examples/passkey/passkey.cpp
#	examples/speculative-simple/speculative-simple.cpp
#	examples/speculative/speculative.cpp
#	ggml/src/ggml-cann/CMakeLists.txt
#	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-vulkan/CMakeLists.txt
#	tests/test-arg-parser.cpp
#	tests/test-backend-ops.cpp

include/llama.h

@@ -282,10 +282,18 @@ extern "C" {
         };
     };
 
+    struct llama_model_tensor_buft_override {
+        const char * pattern;
+        ggml_backend_buffer_type_t buft;
+    };
+
     struct llama_model_params {
         // NULL-terminated list of devices to use for offloading (if NULL, all available devices are used)
         ggml_backend_dev_t * devices;
 
+        // NULL-terminated list of buffer types to use for tensors that match a pattern
+        const struct llama_model_tensor_buft_override * tensor_buft_overrides;
+
         int32_t n_gpu_layers; // number of layers to store in VRAM
         enum llama_split_mode split_mode; // how to split the model across multiple GPUs