mtgpu: enable unified memory

Signed-off-by: Xiaodong Ye <[email protected]>

Author: yeahdongcn

ggml/src/ggml-cuda.cu

@@ -133,7 +133,7 @@ static cudaError_t ggml_cuda_device_malloc(void ** ptr, size_t size, int device)
     return res;
 #else
 
-#if !defined(GGML_USE_HIPBLAS) && !defined(GGML_USE_MUSA)
+#if !defined(GGML_USE_HIPBLAS)
     cudaError_t err;
     if (getenv("GGML_CUDA_ENABLE_UNIFIED_MEMORY") != nullptr)
     {
@@ -146,7 +146,7 @@ static cudaError_t ggml_cuda_device_malloc(void ** ptr, size_t size, int device)
     return err;
 #else
     return cudaMalloc(ptr, size);
-#endif // !defined(GGML_USE_HIPBLAS) && !defined(GGML_USE_MUSA)
+#endif // !defined(GGML_USE_HIPBLAS)
 
 #endif
 }

ggml/src/ggml-cuda/vendors/musa.h

@@ -56,6 +56,7 @@
 #define cudaLaunchHostFunc musaLaunchHostFunc
 #define cudaMalloc musaMalloc
 #define cudaMallocHost musaMallocHost
+#define cudaMallocManaged musaMallocManaged
 #define cudaMemcpy musaMemcpy
 #define cudaMemcpyAsync musaMemcpyAsync
 #define cudaMemcpyPeerAsync musaMemcpyPeerAsync