1 /* ************************************************************************ 2 * Copyright 2013 Advanced Micro Devices, Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 * ************************************************************************/ 16 17 #ifndef TILE_ITER_H 18 #define TILE_ITER_H 19 20 #include "blas_kgen.h" 21 22 typedef enum TileIterFlags { 23 // iterate in the backward direction along logical rows 24 TILE_ITER_BACKWARD_ROWS = 0x01, 25 // iterate in the backward direction along logical columns 26 TILE_ITER_BACKWARD_COLS = 0x02 27 } TileIterFlags; 28 29 typedef enum PhyIterFlags { 30 PHY_ITER_BACKWARD_LINES = 0x01, 31 PHY_ITER_BACKWARD_VECS = 0x02, 32 } PhyIterFlags; 33 34 typedef struct PhysTileIterator { 35 int row; // logical tile row 36 int col; // logical tile column 37 38 int phyIterFlags; 39 int isLogRowMaj; 40 41 int vecLen; 42 43 int line; // physical line 44 int vec; // vector in physical line 45 46 int nrLines; // physical line number 47 int nrVecs; // physical vec number 48 49 } PhysTileIterator; 50 51 //----------------------------------------------------------------------------- 52 53 int 54 iterInit(PhysTileIterator *iter, 55 const Tile *tile, 56 int vecLen, 57 unsigned int tileIterFlags); 58 59 int 60 iterIterate(PhysTileIterator *iter); 61 62 /* 63 * Check if the entire tile has been iterated. Return true if the iterator is 64 * at the next element beyond the last. 65 */ 66 int 67 iterIsEnd(const PhysTileIterator *iter); 68 69 int 70 iterSeek( PhysTileIterator *iter, 71 int row, 72 int col ); 73 74 int 75 iterSeekPhys( PhysTileIterator *iter, 76 int line, 77 int vec ); 78 79 #endif 80