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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/kernel_3_dev@6040 35acf78f-673a-0410-8e92-d51de3d6d3f4

master
gdisirio 2013-07-29 15:13:52 +00:00
parent ca4b2f91b7
commit f569bcec23
6 changed files with 79 additions and 67 deletions
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19
os/kernel/include/chstats.h
View File

@ -55,12 +55,15 @@
* @brief Type of a kernel statistics structure.
*/
typedef struct {
ucnt_t nirq; /**< @brief IRQ number.
@note Fast Interrupts are not
accounted for. */
ucnt_t nctxswc; /**< @brief Context switch number. */
time_measurement_t critical; /**< @brief Critical zones measurement. */
time_measurement_t isr; /**< @brief ISR measurement. */
time_measurement_t *current; /**< @brief Currently under measurement.*/
ucnt_t n_irq; /**< @brief Number of IRQs. */
ucnt_t n_ctxswc; /**< @brief Number of context switches. */
time_measurement_t m_crit_thd; /**< @brief Measurement of threads
critical zones duration. */
time_measurement_t m_crit_isr; /**< @brief Measurement of ISRs critical
zones duration. */
time_measurement_t m_isr; /**< @brief Measurement of ISRs total
duration. */
} kernel_stats_t;
/*===========================================================================*/
@ -70,12 +73,12 @@ typedef struct {
/**
* @brief Increases the IRQ counter.
*/
#define _stats_increase_irq() kernel_stats.nirq++
#define _stats_increase_irq() kernel_stats.n_irq++
/**
* @brief Increases the context switch counter.
*/
#define _stats_increase_ctxswc() kernel_stats.nctxswc++
#define _stats_increase_ctxswc() kernel_stats.n_ctxswc++
/*===========================================================================*/
/* External declarations. */

12
os/kernel/include/chsys.h
View File

@ -182,18 +182,16 @@
/**
* @brief Returns the current value of the system real time counter.
* @note This function can be called from any context.
* @note This function is only available if the port layer supports the
* option @p CH_PORT_SUPPORTS_RT.
*
* @return The value of the system realtime counter of
* type rtcnt_t. If the port does not support a
* realtime counter then zero is returned.
* type rtcnt_t.
*
* @xclass
*/
#if CH_PORT_SUPPORTS_RT || defined(__DOXYGEN__)
#define chSysGetRealtimeCounterX() (rtcnt_t)port_rt_get_counter_value()
#else
#define chSysGetRealtimeCounterX() 0
#endif
/*===========================================================================*/
@ -208,6 +206,10 @@ extern "C" {
void chSysTimerHandlerI(void);
syssts_t chSysGetAndLockX(void);
void chSysRestoreLockX(syssts_t sts);
#if CH_PORT_SUPPORTS_RT
bool chSysIsCounterWithinX(rtcnt_t cnt, rtcnt_t start, rtcnt_t end);
void chSysPolledDelayX(rtcnt_t cycles);
#endif
#ifdef __cplusplus
}
#endif

8
os/kernel/include/chtm.h
View File

@ -81,12 +81,10 @@ typedef struct {
extern "C" {
#endif
void _tm_init(void);
bool chTMIsCounterWithinX(rtcnt_t cnt, rtcnt_t start, rtcnt_t end);
void chTMPolledDelayX(rtcnt_t cycles);
void chTMObjectInit(time_measurement_t *tmp);
NOINLINE void chTMStartX(time_measurement_t *tmp);
NOINLINE void chTMStopX(time_measurement_t *tmp);
NOINLINE void chTMChainToX(time_measurement_t *tmp1,
NOINLINE void chTMStartMeasurementX(time_measurement_t *tmp);
NOINLINE void chTMStopMeasurementX(time_measurement_t *tmp);
NOINLINE void chTMChainMeasurementToX(time_measurement_t *tmp1,
time_measurement_t *tmp2);
#ifdef __cplusplus
}

9
os/kernel/src/chstats.c
View File

@ -67,10 +67,11 @@ kernel_stats_t kernel_stats;
*/
void _stats_init(void) {
kernel_stats.nirq = 0;
kernel_stats.nctxswc = 0;
chTMObjectInit(&kernel_stats.isr);
chTMObjectInit(&kernel_stats.critical);
kernel_stats.n_irq = 0;
kernel_stats.n_ctxswc = 0;
chTMObjectInit(&kernel_stats.m_isr);
chTMObjectInit(&kernel_stats.m_crit_thd);
chTMObjectInit(&kernel_stats.m_crit_isr);
}
#endif /* CH_DBG_STATISTICS */

46
os/kernel/src/chsys.c
View File

@ -29,6 +29,7 @@
* - Interrupt Handling.
* - Power Management.
* - Abnormal Termination.
* - Realtime counter.
* .
* @{
*/
@ -245,4 +246,49 @@ void chSysRestoreLockX(syssts_t sts) {
}
}
#if CH_PORT_SUPPORTS_RT || defined(__DOXYGEN__)
/**
* @brief Realtime window test.
* @details This function verifies if the current realtime counter value
* lies within the specified range or not. The test takes care
* of the realtime counter wrapping to zero on overflow.
* @note When start==end then the function returns always true because the
* whole time range is specified.
* @note This function is only available if the port layer supports the
* option @p CH_PORT_SUPPORTS_RT.
*
* @param[in] cnt the counter value to be tested
* @param[in] start the start of the time window (inclusive)
* @param[in] end the end of the time window (non inclusive)
* @retval true current time within the specified time window.
* @retval false current time not within the specified time window.
*
* @xclass
*/
bool chSysIsCounterWithinX(rtcnt_t cnt, rtcnt_t start, rtcnt_t end) {
return end > start ? (cnt >= start) && (cnt < end) :
(cnt >= start) || (cnt < end);
}
/**
* @brief Polled delay.
* @note The real delay is always few cycles in excess of the specified
* value.
* @note This function is only available if the port layer supports the
* option @p CH_PORT_SUPPORTS_RT.
*
* @param[in] cycles number of cycles
*
* @xclass
*/
void chSysPolledDelayX(rtcnt_t cycles) {
rtcnt_t start = chSysGetRealtimeCounterX();
rtcnt_t end = start + cycles;
while (chSysIsCounterWithinX(chSysGetRealtimeCounterX(), start, end))
;
}
#endif /* CH_PORT_SUPPORTS_RT */
/** @} */

48
os/kernel/src/chtm.c
View File

@ -83,49 +83,11 @@ void _tm_init(void) {
measurements.*/
measurement_offset = 0;
chTMObjectInit(&tm);
chTMStartX(&tm);
chTMStopX(&tm);
chTMStartMeasurementX(&tm);
chTMStopMeasurementX(&tm);
measurement_offset = tm.last;
}
/**
* @brief Realtime window test.
* @details This function verifies if the current realtime counter value
* lies within the specified range or not. The test takes care
* of the realtime counter wrapping to zero on overflow.
* @note When start==end then the function returns always true because the
* whole time range is specified.
*
* @param[in] cnt the counter value to be tested
* @param[in] start the start of the time window (inclusive)
* @param[in] end the end of the time window (non inclusive)
* @retval true current time within the specified time window.
* @retval false current time not within the specified time window.
*
* @xclass
*/
bool chTMIsCounterWithinX(rtcnt_t cnt, rtcnt_t start, rtcnt_t end) {
return end > start ? (cnt >= start) && (cnt < end) :
(cnt >= start) || (cnt < end);
}
/**
* @brief Polled delay.
* @note The real delay is always few cycles in excess of the specified
* value.
*
* @param[in] cycles number of cycles
*
* @xclass
*/
void chTMPolledDelayX(rtcnt_t cycles) {
rtcnt_t start = chSysGetRealtimeCounterX();
rtcnt_t end = start + cycles;
while (chTMIsCounterWithinX(chSysGetRealtimeCounterX(), start, end))
;
}
/**
* @brief Initializes a @p TimeMeasurement object.
*
@ -149,7 +111,7 @@ void chTMObjectInit(time_measurement_t *tmp) {
*
* @xclass
*/
NOINLINE void chTMStartX(time_measurement_t *tmp) {
NOINLINE void chTMStartMeasurementX(time_measurement_t *tmp) {
tmp->last = chSysGetRealtimeCounterX();
}
@ -162,7 +124,7 @@ NOINLINE void chTMStartX(time_measurement_t *tmp) {
*
* @xclass
*/
NOINLINE void chTMStopX(time_measurement_t *tmp) {
NOINLINE void chTMStopMeasurementX(time_measurement_t *tmp) {
tm_stop(tmp, chSysGetRealtimeCounterX());
}
@ -181,7 +143,7 @@ NOINLINE void chTMStopX(time_measurement_t *tmp) {
*
* @xclass
*/
NOINLINE void chTMChainToX(time_measurement_t *tmp1,
NOINLINE void chTMChainMeasurementToX(time_measurement_t *tmp1,
time_measurement_t *tmp2) {
/* Starts new measurement.*/