add attention op doc

mindspore/ccsrc/backend/kernel_compiler/cpu/nnacl/fp32_sparse/matmul_sparse_x1_fp32.c

@@ -23,7 +23,7 @@ void MatMulSparse8x8(const float *a, const float *b, const uint32_t *nnz, const
                      const float *bias, ActType act_type, int out_stride) {
 #ifndef ENABLE_ARM64
   return;
-#endif
+#else
   // mul-acc
   for (int oc = 0; oc < 8; oc++) {
     uint32_t cur_nnz = nnz[oc];
@@ -50,4 +50,5 @@ void MatMulSparse8x8(const float *a, const float *b, const uint32_t *nnz, const
     *(c + 6 * out_stride + oc) = vacc2[2];
     *(c + 7 * out_stride + oc) = vacc2[3];
   }
+#endif
 }

mindspore/core/ops/attention.h

@@ -26,16 +26,19 @@
 namespace mindspore {
 namespace ops {
 constexpr auto kNameAttention = "Attention";
-// Attention MultiHeadAttention
+/// \brief MultiHead-Attention op in MindIR.
 class MS_CORE_API Attention : public PrimitiveC {
  public:
+  /// \brief Constructor.
   Attention() : PrimitiveC(kNameAttention) {
     InitIOName(
       {"q", "k", "v", "weight_q", "weight_k", "weight_v", "weight_o", "bias_q", "bias_k", "bias_v", "bias_o", "mask"},
       {"output"});
   }
+  /// \brief Destructor.
   ~Attention() override = default;
   MS_DECLARE_PARENT(Attention, PrimitiveC);
+  /// \brief Initialize Attention op.
   void Init() {}
 };
 }  // namespace ops