samsung-sm8650/android_kernel_samsung_sm8650-modules
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

qcacmn: Add spinlockstats list

Browse Source 
Keep all spinlocks on a list for offline debugging.
Also support detection of duplicate destroy calls.
Also support detection of not calling spinlock_destroy.

Change-Id: I75f520bb87c06111eabf0f610d4751e98a932c99
CRs-Fixed: 1111956
This commit is contained in:
Houston Hoffman
2017-01-16 11:00:32 -08:00
committed by qcabuildsw
parent 805668a63d
commit ea5d86fe25
2 changed files with 187 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
qdf/inc/qdf_lock.h
View File

@@ -41,6 +41,7 @@
#define QDF_LOCK_STATS 0
#define QDF_LOCK_STATS_DESTROY_PRINT 0
#define QDF_LOCK_STATS_BUG_ON 0
#define QDF_LOCK_STATS_LIST 0
#define QDF_MAX_HOLD_TIME_ALOWED_SPINLOCK_IRQ 1000
#define QDF_MAX_HOLD_TIME_ALOWED_SPINLOCK_BH 5000
@@ -55,7 +56,12 @@ struct lock_stats {};
#define BEFORE_UNLOCK(x...) do {} while (0)
#define qdf_lock_stats_create(x...) do {} while (0)
#define qdf_lock_stats_destroy(x...) do {} while (0)
#define qdf_lock_stats_init(x...) do {} while (0)
#define qdf_lock_stats_deinit(x...) do {} while (0)
#else
void qdf_lock_stats_init(void);
void qdf_lock_stats_deinit(void);
struct qdf_lock_cookie;
struct lock_stats {
const char *initialization_fn;
int line;
@@ -69,6 +75,7 @@ struct lock_stats {
uint64_t max_held_time;
int num_large_contentions;
int num_large_holds;
struct qdf_lock_cookie *cookie;
};
#define LARGE_CONTENTION QDF_LOG_TIMESTAMP_CYCLES_PER_10_US
@@ -140,6 +147,10 @@ do {\
} \
} while (0)
void qdf_lock_stats_cookie_destroy(struct lock_stats *stats);
void qdf_lock_stats_cookie_create(struct lock_stats *stats,
const char *func, int line);
static inline void qdf_lock_stats_destroy(struct lock_stats *stats)
{
if (QDF_LOCK_STATS_DESTROY_PRINT) {
@@ -156,14 +167,27 @@ static inline void qdf_lock_stats_destroy(struct lock_stats *stats)
qdf_log_timestamp_to_usecs(stats->held_time),
qdf_log_timestamp_to_usecs(stats->max_held_time));
}
if (QDF_LOCK_STATS_LIST)
qdf_lock_stats_cookie_destroy(stats);
}
#ifndef MEMORY_DEBUG
#define qdf_mem_malloc_debug(x, y, z) qdf_mem_malloc(x)
#endif
/* qdf_lock_stats_create() - initialize the lock stats structure
*
*/
static inline void qdf_lock_stats_create(struct lock_stats *stats,
const char *func, int line)
{
qdf_mem_zero(stats, sizeof(*stats));
stats->initialization_fn = func;
stats->line = line;
if (QDF_LOCK_STATS_LIST)
qdf_lock_stats_cookie_create(stats, func, line);
}
#endif
@@ -221,6 +245,8 @@ static inline void qdf_spinlock_create(qdf_spinlock_t *lock, const char *func,
int line)
{
__qdf_spinlock_create(&lock->lock);
/* spinlock stats create relies on the spinlock working allread */
qdf_lock_stats_create(&lock->stats, func, line);
}
@@ -455,5 +481,4 @@ void qdf_runtime_lock_deinit(qdf_runtime_lock_t lock);
QDF_STATUS qdf_spinlock_acquire(qdf_spinlock_t *lock);
QDF_STATUS qdf_spinlock_release(qdf_spinlock_t *lock);
#endif /* _QDF_LOCK_H */