fixed

include/ck/tensor_operation/gpu/device/impl/device_gemm_xdl_cshuffle_v3.hpp

@@ -639,6 +639,7 @@ struct DeviceGemm_Xdl_CShuffleV3 : public DeviceGemmV2<ALayout,
 
     index_t GetKPerBlock() override { return KPerBlock; }
 
+    bool GetPermuteA() override { return PermuteA; }
     bool GetPermuteB() override { return PermuteB; }
 
     static auto MakeArgument(const ADataType* p_a,

include/ck/tensor_operation/gpu/element/unary_element_wise_operation.hpp

@@ -22,18 +22,22 @@ __host__ __device__ inline half4_t pki4_to_half4(int q)
     const int HI = 0x00f000f0;
     const int EX = 0x64006400;
 
+    // Extract the two int4 at low bit and create two fp16 number.
     int lo = amd_assembly_and_or_b32(q, LO, EX);
+    // Extract the two int4 at hight bit and create two fp16 number.
     int hi = amd_assembly_and_or_b32(q, HI, EX);
 
-    const int SUB = 0xE408E408; //-8
-    const int MUL = 0x2c002c00; // 1/16
-    const int ADD = 0xd480d480; //-79
+    const int SUB = 0xE408E408; // half2 {-1032, -1032}
+    const int MUL = 0x2c002c00; // half2 {1 / 16, 1 / 16}
+    const int ADD = 0xd480d480; // half2 {-72, -72}
 
     vector_type<half_t, 4> res;
 
+    // for two fp16 from lowbit, subtract 1032 to get correct fp16 value
     res.template AsType<half2_t>()(Number<0>{}) =
         amd_assembly_pk_add_f16(bit_cast<half2_t>(lo), bit_cast<half2_t>(SUB));
 
+    // for two fp16 from highbit, divide 16 and subtract 72 to get correct fp16 value
     res.template AsType<half2_t>()(Number<1>{}) = amd_assembly_pk_fma_f16(
         bit_cast<half2_t>(hi), bit_cast<half2_t>(MUL), bit_cast<half2_t>(ADD));