diff options
| author | James Clark <james.clark@arm.com> | 2024-07-22 11:11:59 +0100 |
|---|---|---|
| committer | Suzuki K Poulose <suzuki.poulose@arm.com> | 2024-08-20 15:02:38 +0100 |
| commit | 988d40a4d4e7d671305bea501562a5d1a1d479fa (patch) | |
| tree | 55172fd3abcfb82cc975755ae4a5761ecc451dad /include/linux/coresight.h | |
| parent | 487eec8da80aef16229d30429f1b26090b1bf0eb (diff) | |
coresight: Make trace ID map spinlock local to the map
Reduce contention on the lock by replacing the global lock with one for
each map.
Signed-off-by: James Clark <james.clark@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20240722101202.26915-18-james.clark@linaro.org
Diffstat (limited to 'include/linux/coresight.h')
| -rw-r--r-- | include/linux/coresight.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/coresight.h b/include/linux/coresight.h index 197949fd2c35..c13342594278 100644 --- a/include/linux/coresight.h +++ b/include/linux/coresight.h @@ -233,6 +233,7 @@ struct coresight_trace_id_map { DECLARE_BITMAP(used_ids, CORESIGHT_TRACE_IDS_MAX); atomic_t __percpu *cpu_map; atomic_t perf_cs_etm_session_active; + spinlock_t lock; }; /** |