RTEMS: cpukit/include/rtems/score/profiling.h Source File

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profiling.h
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1
9/*
10 * Copyright (c) 2014 embedded brains GmbH. All rights reserved.
11 *
12 * embedded brains GmbH
13 * Dornierstr. 4
14 * 82178 Puchheim
15 * Germany
16 * <rtems@embedded-brains.de>
17 *
18 * The license and distribution terms for this file may be
19 * found in the file LICENSE in this distribution or at
20 * http://www.rtems.org/license/LICENSE.
21 */
22
23#ifndef _RTEMS_SCORE_PROFILING
24#define _RTEMS_SCORE_PROFILING
25
26#include <rtems/score/percpu.h>
27#include <rtems/score/isrlock.h>
28
29#ifdef __cplusplus
30extern "C" {
31#endif /* __cplusplus */
32
51static inline void _Profiling_Thread_dispatch_disable(
52 Per_CPU_Control *cpu,
53 uint32_t previous_thread_dispatch_disable_level
54)
55{
56#if defined( RTEMS_PROFILING )
57 if ( previous_thread_dispatch_disable_level == 0 ) {
58 Per_CPU_Stats *stats = &cpu->Stats;
59
60 stats->thread_dispatch_disabled_instant = _CPU_Counter_read();
61 ++stats->thread_dispatch_disabled_count;
62 }
63#else
64 (void) cpu;
65 (void) previous_thread_dispatch_disable_level;
66#endif
67}
68
80static inline void _Profiling_Thread_dispatch_disable_critical(
81 Per_CPU_Control *cpu,
82 uint32_t previous_thread_dispatch_disable_level,
83 const ISR_lock_Context *lock_context
84)
85{
86#if defined( RTEMS_PROFILING )
87 if ( previous_thread_dispatch_disable_level == 0 ) {
88 Per_CPU_Stats *stats = &cpu->Stats;
89
90 stats->thread_dispatch_disabled_instant = lock_context->ISR_disable_instant;
91 ++stats->thread_dispatch_disabled_count;
92 }
93#else
94 (void) cpu;
95 (void) previous_thread_dispatch_disable_level;
96 (void) lock_context;
97#endif
98}
99
109static inline void _Profiling_Thread_dispatch_enable(
110 Per_CPU_Control *cpu,
111 uint32_t new_thread_dispatch_disable_level
112)
113{
114#if defined( RTEMS_PROFILING )
115 if ( new_thread_dispatch_disable_level == 0 ) {
116 Per_CPU_Stats *stats = &cpu->Stats;
117 CPU_Counter_ticks now = _CPU_Counter_read();
118 CPU_Counter_ticks delta = _CPU_Counter_difference(
119 now,
120 stats->thread_dispatch_disabled_instant
121 );
122
123 stats->total_thread_dispatch_disabled_time += delta;
124
125 if ( stats->max_thread_dispatch_disabled_time < delta ) {
126 stats->max_thread_dispatch_disabled_time = delta;
127 }
128 }
129#else
130 (void) cpu;
131 (void) new_thread_dispatch_disable_level;
132#endif
133}
134
141static inline void _Profiling_Update_max_interrupt_delay(
142 Per_CPU_Control *cpu,
143 CPU_Counter_ticks interrupt_delay
144)
145{
146#if defined( RTEMS_PROFILING )
147 Per_CPU_Stats *stats = &cpu->Stats;
148
149 if ( stats->max_interrupt_delay < interrupt_delay ) {
150 stats->max_interrupt_delay = interrupt_delay;
151 }
152#else
153 (void) cpu;
154 (void) interrupt_delay;
155#endif
156}
157
168void _Profiling_Outer_most_interrupt_entry_and_exit(
169 Per_CPU_Control *cpu,
170 CPU_Counter_ticks interrupt_entry_instant,
171 CPU_Counter_ticks interrupt_exit_instant
172);
173
176#ifdef __cplusplus
177}
178#endif /* __cplusplus */
179
180#endif /* _RTEMS_SCORE_PROFILING */
_CPU_Counter_read
CPU_Counter_ticks _CPU_Counter_read(void)
Returns the current CPU counter value.
Definition: system-clocks.c:117
_Profiling_Outer_most_interrupt_entry_and_exit
void _Profiling_Outer_most_interrupt_entry_and_exit(Per_CPU_Control *cpu, CPU_Counter_ticks interrupt_entry_instant, CPU_Counter_ticks interrupt_exit_instant)
Updates the interrupt profiling statistics.
Definition: profilingisrentryexit.c:22
isrlock.h
ISR Locks.
percpu.h
ISR_lock_Context
Local ISR lock context for acquire and release pairs.
Definition: isrlock.h:65
Per_CPU_Control
Per CPU Core Structure.
Definition: percpu.h:347
Per_CPU_Stats
Per-CPU statistics.
Definition: percpu.h:236