jtag_profile_functions.h

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/*
 * Copyright (c) 2024 Tenstorrent AI ULC
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef BH_DMFW_APP_JTAG_UGLY_SRC_JTAG_PROFILE_FUNCTIONS_H_
#define BH_DMFW_APP_JTAG_UGLY_SRC_JTAG_PROFILE_FUNCTIONS_H_
 
#include <stdint.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
#ifdef CONFIG_JTAG_PROFILE_FUNCTIONS
 
#define CYCLES_ENTRY()                                                                             \
        static struct cycle_cnt __cnt;                                                             \
        uint32_t __cyc = 0;                                                                        \
        uint32_t __ops = 0;                                                                        \
                                                                                                   \
        if (!__cnt.func) {                                                                         \
                __cyc = k_cycle_get_32();                                                          \
                __ops = io_ops;                                                                    \
        }
 
#define CYCLES_EXIT()                                                                              \
        do {                                                                                       \
                if (!__cnt.func) {                                                                 \
                        __cnt.func = __func__;                                                     \
                        __cnt.cycles = k_cycle_get_32() - __cyc;                                   \
                        __cnt.io_ops = io_ops - __ops;                                             \
                        printk("%s(): %d: finished in %u ms (%u cycles), %u "                      \
                               "io_ops\n",                                                         \
                               __func__, __LINE__,                                                 \
                               __cnt.cycles / (CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC / 1000),         \
                               __cnt.cycles, __cnt.io_ops);                                        \
                }                                                                                  \
        } while (0)
 
/*
 * In files where I/O ops are counted add the line below.
 * The reason for that is that I/O ops are counted globally.
 *
 * static uint32_t io_ops;
 */
#define IO_OPS_INC() io_ops++
 
#else /* CONFIG_JTAG_PROFILE_FUNCTIONS */
 
#define CYCLES_ENTRY()
#define CYCLES_EXIT()
#define IO_OPS_INC()
 
#endif /* CONFIG_JTAG_PROFILE_FUNCTIONS */
 
struct cycle_cnt {
        const char *func;
        uint32_t cycles;
        uint32_t io_ops;
};
 
#ifdef __cplusplus
}
#endif
 
#endif /* BH_DMFW_APP_JTAG_UGLY_SRC_JTAG_PROFILE_FUNCTIONS_H_ */