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| author | Yijie Yang <yijie.yang@oss.qualcomm.com> | 2026-08-11 16:46:47 +0800 |
|---|---|---|
| committer | Rob Herring (Arm) <robh@kernel.org> | 2026-08-15 15:46:52 -0500 |
| commit | e1c13aed4a1641550e8c9518c96f016e1d52d09b (patch) | |
| tree | 61c2297688373db165cc857b7c7adcb147a5c419 /tools/perf/util/rwsem.h | |
| download | linux-stable-e1c13aed4a1641550e8c9518c96f016e1d52d09b.tar.gz linux-stable-e1c13aed4a1641550e8c9518c96f016e1d52d09b.zip | |
dt-bindings: interconnect: qcom-bwmon: Add Maili cpu-bwmon compatiblegrafted
Add the Qualcomm Maili SoC compatible string for the CPU bandwidth
monitor (BWMONv4). This falls back to the sdm845-bwmon compatible,
consistent with the existing pattern used by other recent SoCs such as
sm8750 and kaanapali.
Signed-off-by: Yijie Yang <yijie.yang@oss.qualcomm.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Jingyi Wang <jingyi.wang@oss.qualcomm.com>
Link: https://patch.msgid.link/20260811-bwmon-v2-1-80f7f150ab9e@oss.qualcomm.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Diffstat (limited to 'tools/perf/util/rwsem.h')
| -rw-r--r-- | tools/perf/util/rwsem.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/tools/perf/util/rwsem.h b/tools/perf/util/rwsem.h new file mode 100644 index 000000000..b102d8143 --- /dev/null +++ b/tools/perf/util/rwsem.h @@ -0,0 +1,30 @@ +#ifndef _PERF_RWSEM_H +#define _PERF_RWSEM_H + +#include <pthread.h> +#include "mutex.h" + +/* + * Mutexes have additional error checking. Enable to use a mutex rather than a + * rwlock for debugging. + */ +#define RWS_ERRORCHECK 0 + +struct LOCKABLE rw_semaphore { +#if RWS_ERRORCHECK + struct mutex mtx; +#else + pthread_rwlock_t lock; +#endif +}; + +int init_rwsem(struct rw_semaphore *sem); +int exit_rwsem(struct rw_semaphore *sem); + +int down_read(struct rw_semaphore *sem) SHARED_LOCK_FUNCTION(sem); +int up_read(struct rw_semaphore *sem) UNLOCK_FUNCTION(sem); + +int down_write(struct rw_semaphore *sem) EXCLUSIVE_LOCK_FUNCTION(sem); +int up_write(struct rw_semaphore *sem) UNLOCK_FUNCTION(sem); + +#endif /* _PERF_RWSEM_H */ |