Fixed Gemmv2r3 kpad (#938)

* added kpad support into v2r3

* add generic instances

* fixed comments

* fixed mnk padding

* Update device_batched_gemm_xdl.hpp

* fixed kpad

---------
Co-authored-by: Jing Zhang <jizha@amd.com>

include/ck/tensor_operation/gpu/grid/gridwise_gemm_pipeline_v2.hpp

@@ -9,13 +9,13 @@ namespace ck {
 
 struct GridwiseGemmPipeline_v2
 {
-    __host__ __device__ static constexpr bool IsSupported(index_t num_loop)
+    __host__ __device__ static constexpr bool IsSupported(const index_t num_loop)
     {
         // TODO: improve applicability
         return num_loop % 2 == 0;
     }
 
-    __host__ __device__ static constexpr bool CalculateHasMainLoop(index_t num_loop)
+    __host__ __device__ static constexpr bool CalculateHasMainLoop(const index_t num_loop)
     {
         return (num_loop / 2) > 1;
     }

include/ck/tensor_operation/gpu/grid/gridwise_gemm_xdlops_v2r3.hpp

@@ -175,7 +175,7 @@ struct GridwiseGemm_k0mk1_k0nk1_mn_xdlops_v2r3
         return math::integer_divide_ceil(N, NPerBlock) * NPerBlock;
     }
 
-    __host__ static auto CalculateK0(index_t K) { return math::integer_divide_floor(K, K1Value); }
+    __host__ static auto CalculateK0(index_t K) { return math::integer_divide_ceil(K, K1Value); }
 
     // Argument
     struct Problem
@@ -369,9 +369,7 @@ struct GridwiseGemm_k0mk1_k0nk1_mn_xdlops_v2r3
                       "Invalid tuning param!");
 
         // check gridwise gemm pipeline
-        const index_t K0      = problem.K / K1Value;
-        const auto num_k_loop = K0 / K0PerBlock;
-
+        const auto num_k_loop = math::integer_divide_ceil(problem.K0, K0PerBlock);
         if(!GridwiseGemmPipe::IsSupported(num_k_loop))
         {
             return false;
@@ -1026,8 +1024,7 @@ struct GridwiseGemm_k0mk1_k0nk1_mn_xdlops_v2r3_ext
         }
 
         // check gridwise gemm pipeline
-        const index_t K0      = problem.K / K1;
-        const auto num_k_loop = K0 / K0PerBlock;
+        const auto num_k_loop = math::integer_divide_ceil(problem.K0, K0PerBlock);
 
         if(!GridwiseGemmPipe::IsSupported(num_k_loop))
         {