threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
81 lines
2.0 KiB
C
81 lines
2.0 KiB
C
/*
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* Copyright (c) 2015-2019, MICROTRUST Incorporated
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#define ENABLE_LOG_PERF 0
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static inline uint64_t read_cntvct(void)
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{
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uint64_t val;
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asm volatile("mrs %0, cntvct_el0" : "=r" (val));
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return val;
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}
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#if ENABLE_LOG_PERF == 1
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#define LOG_MEASURE_START 0x7c40407c /* |@@| */
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#define LOG_MEASURE_END 0x7c2d2d7c /* |--| */
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static unsigned int received_tz_log_chars;
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static unsigned int received_tz_log_lines;
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static bool tz_log_timer_started;
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static uint64_t start_log_timer_counter, end_log_timer_counter;
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static void reset_tz_log_counter(void)
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{
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received_tz_log_chars = 0;
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received_tz_log_lines = 0;
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}
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static void add_tz_log_counter(unsigned int num_chars)
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{
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received_tz_log_chars += num_chars;
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received_tz_log_lines++;
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}
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static void measure_log_perf(const char *tag, int log_len, uint32_t log_prefix)
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{
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if (log_len > 0) {
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if (log_prefix == LOG_MEASURE_START) {
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if (!tz_log_timer_started) {
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start_log_timer_counter = read_cntvct();
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tz_log_timer_started = true;
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reset_tz_log_counter();
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}
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add_tz_log_counter(log_len-1);
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}
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if (log_prefix == LOG_MEASURE_END) {
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if (!tz_log_timer_started)
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IMSG_WARN("[BUG] log timer not start yet!\n");
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else {
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end_log_timer_counter = read_cntvct();
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tz_log_timer_started = false;
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IMSG_PRINTK("%s[RLOG] Recv Log (%u)/(%u)\n",
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tag, received_tz_log_chars,
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received_tz_log_lines);
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IMSG_PRINTK("%s[RLOG] (%llu)~(%llu)/(%llu)\n",
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tag, start_log_timer_counter,
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end_log_timer_counter,
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end_log_timer_counter - start_log_timer_counter);
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}
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}
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}
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}
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#endif
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