/*
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* Copyright (c) 2017, Linaro Limited
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TEE_BENCH_H
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#define TEE_BENCH_H
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#include <inttypes.h>
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#define PTA_BENCHMARK_UUID \
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{ 0x0b9a63b0, 0xb4c6, 0x4c85, \
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{ 0xa2, 0x84, 0xa2, 0x28, 0xef, 0x54, 0x7b, 0x4e } }
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#define BENCHMARK_CMD(id) (0xFA190000 | ((id) & 0xFFFF))
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#define BENCHMARK_CMD_REGISTER_MEMREF BENCHMARK_CMD(1)
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#define BENCHMARK_CMD_GET_MEMREF BENCHMARK_CMD(2)
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#define BENCHMARK_CMD_UNREGISTER BENCHMARK_CMD(3)
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/*
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* Cycle count divider is enabled (in PMCR),
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* CCNT value is incremented every 64th clock cycle
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*/
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#define TEE_BENCH_DIVIDER 64
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/* max amount of timestamps per buffer */
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#define TEE_BENCH_MAX_STAMPS 32
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#define TEE_BENCH_MAX_MASK (TEE_BENCH_MAX_STAMPS - 1)
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/* OP-TEE susbsystems ids */
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#define TEE_BENCH_CLIENT 0x10000000
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#define TEE_BENCH_KMOD 0x20000000
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#define TEE_BENCH_CORE 0x30000000
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#define TEE_BENCH_UTEE 0x40000000
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#define TEE_BENCH_DUMB_TA 0xF0000001
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/* storing timestamp */
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struct tee_time_st {
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uint64_t cnt; /* stores value from CNTPCT register */
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uint64_t addr; /* stores value from program counter register */
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uint64_t src; /* OP-TEE subsystem id */
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};
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/* per-cpu circular buffer for timestamps */
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struct tee_ts_cpu_buf {
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uint64_t head;
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uint64_t tail;
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struct tee_time_st stamps[TEE_BENCH_MAX_STAMPS];
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};
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/* memory layout for shared memory, where timestamps will be stored */
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struct tee_ts_global {
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uint64_t cores;
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struct tee_ts_cpu_buf cpu_buf[];
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};
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#endif /* TEE_BENCH_H */
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