mirror of
https://github.com/openmv/openmv.git
synced 2025-09-26 23:09:13 +08:00

This adds a simple code profiler that leverages both SysTick and the Performance Monitoring Unit (PMU) available on Armv8.1-M cores. SysTick provides a simple high-resolution timer source, while the PMU offers a cycle counter and multiple configurable event counters that can track low-level performance metrics such as cache misses, pipeline stalls, etc... See the Armv8.1-M Performance Monitoring User Guide for additional details. Function-level instrumentation is enabled using -finstrument-functions on select files to automatically record statistics on entry/exit. Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
93 lines
3.4 KiB
C
93 lines
3.4 KiB
C
/*
|
|
* SPDX-License-Identifier: MIT
|
|
*
|
|
* Copyright (C) 2013-2024 OpenMV, LLC.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*
|
|
* Common macros.
|
|
*/
|
|
#ifndef __OMV_COMMON_H__
|
|
#define __OMV_COMMON_H__
|
|
|
|
#define OMV_ATTR_ALIGNED(x, a) x __attribute__((aligned(a)))
|
|
#define OMV_ATTR_SECTION(x, s) x __attribute__((section(s)))
|
|
#define OMV_ATTR_ALWAYS_INLINE inline __attribute__((always_inline))
|
|
#define OMV_ATTR_OPTIMIZE(o) __attribute__((optimize(o)))
|
|
#define OMV_ATTR_SEC_ALIGN(x, s, a) x __attribute__((section(s), aligned(a)))
|
|
#define OMV_ATTR_NO_INSTRUMENT __attribute__((no_instrument_function))
|
|
#define OMV_DEBUG_BREAKPOINT() __asm__ volatile ("BKPT")
|
|
|
|
#ifndef __DCACHE_PRESENT
|
|
#define OMV_CACHE_LINE_SIZE (32)
|
|
#else
|
|
#define OMV_CACHE_LINE_SIZE (__SCB_DCACHE_LINE_SIZE)
|
|
#endif
|
|
|
|
#ifndef OMV_DMA_ALIGNMENT
|
|
#define OMV_DMA_ALIGNMENT (OMV_CACHE_LINE_SIZE)
|
|
#endif
|
|
|
|
#define OMV_ALIGN_TO(x, alignment) \
|
|
((((uintptr_t)(x)) + (alignment) - 1) & ~((uintptr_t)((alignment) - 1)))
|
|
|
|
#define OMV_ALIGN_DOWN(x, alignment) \
|
|
((uintptr_t)(x) & ~((uintptr_t)(alignment) - 1))
|
|
|
|
#define check_timeout_ms(start_ms, timeout) \
|
|
((mp_hal_ticks_ms() - start_ms) > timeout)
|
|
|
|
#define check_timeout_us(start_us, timeout) \
|
|
((mp_hal_ticks_us() - start_us) > timeout)
|
|
|
|
#ifdef OMV_DEBUG_PRINTF
|
|
#define debug_printf(fmt, ...) \
|
|
do { printf("%s(): " fmt, __func__, ##__VA_ARGS__);} while (0)
|
|
#else
|
|
#define debug_printf(...)
|
|
#endif
|
|
|
|
#define OMV_MAX(a, b) ({ \
|
|
__typeof__ (a) _a = (a); \
|
|
__typeof__ (b) _b = (b); \
|
|
_a > _b ? _a : _b; \
|
|
})
|
|
|
|
#define OMV_MIN(a, b) ({ \
|
|
__typeof__ (a) _a = (a); \
|
|
__typeof__ (b) _b = (b); \
|
|
_a < _b ? _a : _b; \
|
|
})
|
|
|
|
#define OMV_ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
|
|
|
|
// Token concatenation macros
|
|
// OMV_CONCAT expands its arguments before pasting, while
|
|
// OMV_CONCAT_HELPER performs the raw token pasting (x##y).
|
|
#define OMV_CONCAT_HELPER(x, y) x##y
|
|
#define OMV_CONCAT_STR(x, y) OMV_CONCAT_HELPER(x, y)
|
|
|
|
// Returns a pointer to the containing structure
|
|
// ptr: Pointer to the member within the structure
|
|
// type: Type of the containing structure
|
|
// member: Name of the member within the structure
|
|
#define OMV_CONTAINER_OF(ptr, type, member) \
|
|
((type *)((char *)(ptr) - offsetof(type, member)))
|
|
#endif //__OMV_COMMON_H__
|