diff options
Diffstat (limited to 'source/hal/source/profiles/bare-metal/timer/platform_timer.c')
| -rw-r--r-- | source/hal/source/profiles/bare-metal/timer/platform_timer.c | 351 |
1 files changed, 0 insertions, 351 deletions
diff --git a/source/hal/source/profiles/bare-metal/timer/platform_timer.c b/source/hal/source/profiles/bare-metal/timer/platform_timer.c deleted file mode 100644 index 0388198..0000000 --- a/source/hal/source/profiles/bare-metal/timer/platform_timer.c +++ /dev/null @@ -1,351 +0,0 @@ -/* - * Copyright (c) 2022 Arm Limited. All rights reserved. - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -#include "timer.h" -#include "log_macros.h" -#include "platform_drivers.h" - -#include <assert.h> -#include <string.h> -#include <inttypes.h> - -#if defined (ARM_NPU) - -#include "pmu_ethosu.h" - -extern struct ethosu_driver ethosu_drv; /* Default Ethos-U55 device driver */ - -/** - * @brief Initialises the PMU and enables the cycle counter. - **/ -static void _init_ethosu_cyclecounter(void); - -/** - * @brief Gets the difference of total NPU cycle counts. - * (includes active and idle) - * @param[in] st Pointer to time_counter value at start time. - * @param[in] end Pointer to time_counter value at end. - * @return Total NPU cycle counts difference between the arguments expressed - * as unsigned 64 bit integer. - **/ -static uint64_t bm_get_npu_total_cycle_diff(time_counter *st, - time_counter *end); - -/** - * @brief Gets the difference in active NPU cycle counts. - * @param[in] st Pointer to time_counter value at start time. - * @param[in] end Pointer to time_counter value at end. - * @return Active NPU cycle counts difference between the arguments expressed - * as unsigned 64 bit integer. - **/ -static uint64_t bm_get_npu_active_cycle_diff(time_counter *st, - time_counter *end); - -/** @brief Gets the difference in idle NPU cycle counts - * @param[in] st Pointer to time_counter value at start time. - * @param[in] end Pointer to time_counter value at end. - * @return Idle NPU cycle counts difference between the arguments expressed - * as unsigned 64 bit integer. - **/ -static uint64_t bm_get_npu_idle_cycle_diff(time_counter *st, - time_counter *end); - -/** @brief Gets the difference in axi0 bus reads cycle counts - * @param[in] st Pointer to time_counter value at start time. - * @param[in] end Pointer to time_counter value at end. - * @return NPU AXI0 read cycle counts difference between the arguments expressed - * as unsigned 64 bit integer. - **/ -static uint64_t bm_get_npu_axi0_read_cycle_diff(time_counter *st, - time_counter *end); - -/** @brief Gets the difference in axi0 bus writes cycle counts - * @param[in] st Pointer to time_counter value at start time. - * @param[in] end Pointer to time_counter value at end. - * @return NPU AXI0 write cycle counts difference between the arguments expressed - * as unsigned 64 bit integer. - **/ -static uint64_t bm_get_npu_axi0_write_cycle_diff(time_counter *st, - time_counter *end); - -/** @brief Gets the difference in axi1 bus reads cycle counts - * @param[in] st Pointer to time_counter value at start time. - * @param[in] end Pointer to time_counter value at end. - * @return NPU AXI1 read cycle counts difference between the arguments expressed - * as unsigned 64 bit integer. - **/ -static uint64_t bm_get_npu_axi1_read_cycle_diff(time_counter *st, - time_counter *end); - -/** @brief Gets the difference for 6 collected cycle counts: - * 1) total NPU - * 2) active NPU - * 3) idle NPU - * 4) axi0 read - * 5) axi0 write - * 6) axi1 read - * */ -static int bm_get_npu_cycle_diff(time_counter *st, time_counter *end, - uint64_t* pmu_counters_values, const size_t size); - -#endif /* defined (ARM_NPU) */ - -#if defined(MPS3_PLATFORM) -/** - * @brief Wrapper for getting milliseconds duration between time counters - * @param[in] st Pointer to time_counter value at start time. - * @param[in] end Pointer to time_counter value at end. - * @return Difference in milliseconds between given time counters. - **/ -static time_t bm_get_duration_ms(time_counter *st, time_counter *end); - -/** - * @brief Wrapper for getting microseconds duration between time counters - * @param[in] st Pointer to time_counter value at start time. - * @param[in] end Pointer to time_counter value at end. - * @return Difference in microseconds between given time counters. - **/ -static time_t bm_get_duration_us(time_counter *st, time_counter *end); -#endif /* defined(MPS3_PLATFORM) */ - -/** - * @brief Wrapper for resetting timer. - **/ -static void bm_timer_reset(void); - -/** - * @brief Wrapper for getting the current timer counter. - * @return Current time counter value. - **/ -static time_counter bm_get_time_counter(void); - -/** - * @brief Wrapper for profiler start. - * @return Current profiler start timer counter. - **/ -static time_counter bm_start_profiling(void); - -/** - * @brief Wrapper for profiler end. - * @return Current profiler end timer counter. - **/ -static time_counter bm_stop_profiling(void); - -/** - * @brief Wrapper for getting CPU cycle difference between time counters. - * @return CPU cycle difference between given time counters expressed - * as unsigned 32 bit integer. - **/ -static uint64_t bm_get_cpu_cycles_diff(time_counter *st, time_counter *end); - -/** - * @brief Initialiser for bare metal timer. - * @param[in] timer Platform timer to initialize. - **/ -void init_timer(platform_timer *timer) -{ - assert(timer); - memset(timer, 0, sizeof(*timer)); - - timer->reset = bm_timer_reset; - timer->get_time_counter = bm_get_time_counter; - timer->start_profiling = bm_start_profiling; - timer->stop_profiling = bm_stop_profiling; - timer->get_cpu_cycle_diff = bm_get_cpu_cycles_diff; - timer->cap.cpu_cycles = 1; - -#if defined (MPS3_PLATFORM) - timer->cap.duration_ms = 1; - timer->cap.duration_us = 1; - timer->get_duration_ms = bm_get_duration_ms; - timer->get_duration_us = bm_get_duration_us; -#endif /* defined (MPS3_PLATFORM) */ - -#if defined (ARM_NPU) - /* We are capable of reporting npu cycle counts. */ - timer->cap.npu_cycles = 1; - timer->get_npu_cycles_diff = bm_get_npu_cycle_diff; - _init_ethosu_cyclecounter(); -#endif /* defined (ARM_NPU) */ - - timer->reset(); - timer->inited = 1; -} - -#if defined (ARM_NPU) -static void _reset_ethosu_counters() -{ - /* Reset all cycle and event counters. */ - ETHOSU_PMU_CYCCNT_Reset(ðosu_drv); - ETHOSU_PMU_EVCNTR_ALL_Reset(ðosu_drv); -} -static void _init_ethosu_cyclecounter() -{ - /* Reset overflow status. */ - ETHOSU_PMU_Set_CNTR_OVS(ðosu_drv, ETHOSU_PMU_CNT1_Msk | ETHOSU_PMU_CCNT_Msk); - /* We can retrieve only 4 PMU counters: */ - ETHOSU_PMU_Set_EVTYPER(ðosu_drv, 0, ETHOSU_PMU_NPU_IDLE); - ETHOSU_PMU_Set_EVTYPER(ðosu_drv, 1, ETHOSU_PMU_AXI0_RD_DATA_BEAT_RECEIVED); - ETHOSU_PMU_Set_EVTYPER(ðosu_drv, 2, ETHOSU_PMU_AXI0_WR_DATA_BEAT_WRITTEN); - ETHOSU_PMU_Set_EVTYPER(ðosu_drv, 3, ETHOSU_PMU_AXI1_RD_DATA_BEAT_RECEIVED); - /* Enable PMU. */ - ETHOSU_PMU_Enable(ðosu_drv); - /* Enable counters for cycle and counter# 0. */ - ETHOSU_PMU_CNTR_Enable(ðosu_drv, ETHOSU_PMU_CNT1_Msk | ETHOSU_PMU_CNT2_Msk | ETHOSU_PMU_CNT3_Msk | ETHOSU_PMU_CNT4_Msk| ETHOSU_PMU_CCNT_Msk); - _reset_ethosu_counters(); -} - -static int bm_get_npu_cycle_diff(time_counter *st, time_counter *end, - uint64_t* pmu_counters_values, const size_t size) -{ - if (size == 6) { - pmu_counters_values[0] = bm_get_npu_total_cycle_diff(st, end); - pmu_counters_values[1] = bm_get_npu_active_cycle_diff(st, end); - pmu_counters_values[2] = bm_get_npu_idle_cycle_diff(st, end); - pmu_counters_values[3] = bm_get_npu_axi0_read_cycle_diff(st, end); - pmu_counters_values[4] = bm_get_npu_axi0_write_cycle_diff(st, end); - pmu_counters_values[5] = bm_get_npu_axi1_read_cycle_diff(st, end); - return 0; - } else { - return 1; - } -} - -static uint64_t bm_get_npu_total_cycle_diff(time_counter *st, time_counter *end) -{ - return end->npu_total_ccnt - st->npu_total_ccnt; -} - -static uint32_t counter_overflow(uint32_t pmu_counter_mask) -{ - /* Check for overflow: The idle counter is 32 bit while the - total cycle count is 64 bit. */ - const uint32_t overflow_status = ETHOSU_PMU_Get_CNTR_OVS(ðosu_drv); - return pmu_counter_mask & overflow_status; -} - -static uint64_t bm_get_npu_idle_cycle_diff(time_counter *st, time_counter *end) -{ - if (counter_overflow(ETHOSU_PMU_CNT1_Msk)) { - printf_err("EthosU PMU idle counter overflow.\n"); - return 0; - } - return (uint64_t)(end->npu_idle_ccnt - st->npu_idle_ccnt); -} - -static uint64_t bm_get_npu_active_cycle_diff(time_counter *st, time_counter *end) -{ - /* Active NPU time = total time - idle time */ - return bm_get_npu_total_cycle_diff(st, end) - bm_get_npu_idle_cycle_diff(st, end); -} - -static uint64_t bm_get_npu_axi0_read_cycle_diff(time_counter *st, time_counter *end) -{ - if (counter_overflow(ETHOSU_PMU_CNT2_Msk)) { - printf_err("EthosU PMU axi0 read counter overflow.\n"); - return 0; - } - return (uint64_t)(end->npu_axi0_read_beats - st->npu_axi0_read_beats); -} - -static uint64_t bm_get_npu_axi0_write_cycle_diff(time_counter *st, time_counter *end) -{ - if (counter_overflow(ETHOSU_PMU_CNT3_Msk)) { - printf_err("EthosU PMU axi0 write counter overflow.\n"); - return 0; - } - return (uint64_t)(end->npu_axi0_write_beats - st->npu_axi0_write_beats); -} - -static uint64_t bm_get_npu_axi1_read_cycle_diff(time_counter *st, time_counter *end) -{ - if (counter_overflow(ETHOSU_PMU_CNT4_Msk)) { - printf_err("EthosU PMU axi1 read counter overflow.\n"); - return 0; - } - return (uint64_t)(end->npu_axi1_read_beats - st->npu_axi1_read_beats); -} - -#endif /* defined (ARM_NPU) */ - -static void bm_timer_reset(void) -{ -#if defined (ARM_NPU) - _init_ethosu_cyclecounter(); -#endif /* defined (ARM_NPU) */ - - timer_reset(); -} - -static time_counter bm_get_time_counter(void) -{ - time_counter t = { - .counter = get_time_counter(), - -#if defined (ARM_NPU) - .npu_total_ccnt = ETHOSU_PMU_Get_CCNTR(ðosu_drv), - .npu_idle_ccnt = ETHOSU_PMU_Get_EVCNTR(ðosu_drv, 0), - .npu_axi0_read_beats = ETHOSU_PMU_Get_EVCNTR(ðosu_drv, 1), - .npu_axi0_write_beats = ETHOSU_PMU_Get_EVCNTR(ðosu_drv, 2), - .npu_axi1_read_beats = ETHOSU_PMU_Get_EVCNTR(ðosu_drv, 3) -#endif /* defined (ARM_NPU) */ - - }; - -#if defined (ARM_NPU) - debug("NPU total cc: %" PRIu64 - "; NPU idle cc: %" PRIu32 - "; NPU axi0 read beats: %" PRIu32 - "; NPU axi0 write beats: %" PRIu32 - "; NPU axi1 read beats: %" PRIu32 "\n", - t.npu_total_ccnt, - t.npu_idle_ccnt, - t.npu_axi0_read_beats, - t.npu_axi0_write_beats, - t.npu_axi1_read_beats); -#endif /* defined (ARM_NPU) */ - - return t; -} - -static time_counter bm_start_profiling(void) -{ - start_cycle_counter(); - return bm_get_time_counter(); -} - -static time_counter bm_stop_profiling(void) -{ - stop_cycle_counter(); - return bm_get_time_counter(); -} - -static uint64_t bm_get_cpu_cycles_diff(time_counter *st, time_counter *end) -{ - return get_cycle_count_diff(&(st->counter), &(end->counter)); -} - -#if defined(MPS3_PLATFORM) -static time_t bm_get_duration_ms(time_counter *st, time_counter *end) -{ - return get_duration_milliseconds(&(st->counter), &(end->counter)); -} - -static time_t bm_get_duration_us(time_counter *st, time_counter *end) -{ - return get_duration_microseconds(&(st->counter), &(end->counter)); -} -#endif /* defined(MPS3_PLATFORM) */ |