[CK_TILE] add generic_permute (#1607)

include/ck_tile/ops/permute/pipeline/generic_petmute_problem.hpp

@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2023, Advanced Micro Devices, Inc. All rights reserved.
+
+#pragma once
+
+#include "ck_tile/core/utility/type_traits.hpp"
+
+namespace ck_tile {
+
+template <typename DataType_,
+          index_t kBlockSize_ = 256,
+          index_t kMaxRanks_  = 8,
+          bool KeepLastDim_   = false>
+struct GenericPermuteProblem
+{
+    using DataType                      = remove_cvref_t<DataType_>;
+    static constexpr index_t kBlockSize = kBlockSize_;
+    static constexpr index_t kMaxRanks  = kMaxRanks_;
+    /* KeepLastDim:
+     *  if last dim keep the same? this can help enable vector load
+     *   permute(0, 2, 4, 1, 3, 5) -> true
+     *   permute(0, 3, 2, 1) -> false
+     */
+    static constexpr bool KeepLastDim = KeepLastDim_;
+    // TODO: not used(?)
+};
+
+} // namespace ck_tile