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1 files changed, 45 insertions, 0 deletions

diff --git a/llama.cpp/ggml/src/ggml-cuda/clamp.cu b/llama.cpp/ggml/src/ggml-cuda/clamp.cu
new file mode 100644
index 0000000..fe415e7
--- /dev/null
+++ b/llama.cpp/ggml/src/ggml-cuda/clamp.cu
@@ -0,0 +1,45 @@
+#include "clamp.cuh"
+
+static __device__ __forceinline__ float op_clamp(float x, float min, float max) {
+    return fminf(fmaxf(x, min), max);
+}
+
+template <class T>
+static __global__ void op_clamp_kernel(const T * x, T * dst, const T min, const T max, const int k) {
+    const int i = blockDim.x*blockIdx.x + threadIdx.x;
+
+    if (i >= k) {
+        return;
+    }
+
+    dst[i] = (T)op_clamp((float)x[i], (float)min, (float)max);
+}
+
+template <class T>
+static void clamp_cuda(const T * x, T * dst, const T min, const T max, const int k, cudaStream_t stream) {
+    const int num_blocks = (k + CUDA_CLAMP_BLOCK_SIZE - 1) / CUDA_CLAMP_BLOCK_SIZE;
+    op_clamp_kernel<<<num_blocks, CUDA_CLAMP_BLOCK_SIZE, 0, stream>>>(x, dst, min, max, k);
+}
+
+
+void ggml_cuda_op_clamp(ggml_backend_cuda_context & ctx, ggml_tensor * dst) {
+    const ggml_tensor * src0 = dst->src[0];
+    const void * src0_d = src0->data;
+    void * dst_d = dst->data;
+    cudaStream_t stream = ctx.stream();
+
+    GGML_ASSERT(src0->type == GGML_TYPE_F32 || src0->type == GGML_TYPE_F16);
+    GGML_ASSERT( dst->type == GGML_TYPE_F32 ||  dst->type == GGML_TYPE_F16);
+    GGML_ASSERT(src0->type == dst->type);
+
+    float min;
+    float max;
+    memcpy(&min, dst->op_params, sizeof(float));
+    memcpy(&max, (float *) dst->op_params + 1, sizeof(float));
+
+    if (src0->type == GGML_TYPE_F16) {
+        clamp_cuda((const half *)src0_d, (half *)dst_d, (half)min, (half)max, ggml_nelements(src0), stream);
+    } else {
+        clamp_cuda((const float *)src0_d, (float *)dst_d, (float)min, (float)max, ggml_nelements(src0), stream);
+    }
+}