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1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef __LIBPERF_INTERNAL_XYARRAY_H3#define __LIBPERF_INTERNAL_XYARRAY_H4 5#include <linux/compiler.h>6#include <sys/types.h>7 8struct xyarray {9 size_t row_size;10 size_t entry_size;11 size_t entries;12 size_t max_x;13 size_t max_y;14 char contents[] __aligned(8);15};16 17struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size);18void xyarray__delete(struct xyarray *xy);19void xyarray__reset(struct xyarray *xy);20 21static inline void *__xyarray__entry(struct xyarray *xy, int x, int y)22{23 return &xy->contents[x * xy->row_size + y * xy->entry_size];24}25 26static inline void *xyarray__entry(struct xyarray *xy, size_t x, size_t y)27{28 if (x >= xy->max_x || y >= xy->max_y)29 return NULL;30 return __xyarray__entry(xy, x, y);31}32 33static inline int xyarray__max_y(struct xyarray *xy)34{35 return xy->max_y;36}37 38static inline int xyarray__max_x(struct xyarray *xy)39{40 return xy->max_x;41}42 43#endif /* __LIBPERF_INTERNAL_XYARRAY_H */44