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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (c) 2017, Linaro Limited
*/
#ifndef BENCH_H
#define BENCH_H
#include <inttypes.h>
#include <mm/core_memprot.h>
#include <mm/core_mmu.h>
#include <optee_msg.h>
/*
* Cycle count divider is enabled (in PMCR),
* CCNT value is incremented every 64th clock cycle
*/
#define TEE_BENCH_DIVIDER 64
/* Max amount of timestamps per buffer */
#define TEE_BENCH_MAX_STAMPS 32
#define TEE_BENCH_MAX_MASK (TEE_BENCH_MAX_STAMPS - 1)
#define OPTEE_MSG_RPC_CMD_BENCH_REG_NEW 0
#define OPTEE_MSG_RPC_CMD_BENCH_REG_DEL 1
/* OP-TEE susbsystems ids */
#define TEE_BENCH_CLIENT 0x10000000
#define TEE_BENCH_KMOD 0x20000000
#define TEE_BENCH_CORE 0x30000000
#define TEE_BENCH_UTEE 0x40000000
#define TEE_BENCH_DUMB_TA 0xF0000001
/* storing timestamp */
struct tee_time_st {
uint64_t cnt; /* stores value from CNTPCT register */
uint64_t addr; /* stores value from program counter register */
uint64_t src; /* OP-TEE subsystem id */
};
/* per-cpu circular buffer for timestamps */
struct tee_ts_cpu_buf {
uint64_t head;
uint64_t tail;
struct tee_time_st stamps[TEE_BENCH_MAX_STAMPS];
};
/* memory layout for shared memory, where timestamps will be stored */
struct tee_ts_global {
uint64_t cores;
struct tee_ts_cpu_buf cpu_buf[];
};
#ifdef CFG_TEE_BENCHMARK
void bm_timestamp(void);
#else
static inline void bm_timestamp(void) {}
#endif /* CFG_TEE_BENCHMARK */
#endif /* BENCH_H */
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