[PATCH v5 0/2] coresight: catu: Introduce refcount and spinlock for enabling/disabling
Suzuki K Poulose
suzuki.poulose at arm.com
Wed Apr 30 06:55:12 PDT 2025
On Tue, 29 Apr 2025 16:12:58 -0700, Yabin Cui wrote:
> When tracing ETM data on multiple CPUs concurrently via the
> perf interface, the CATU device is shared across different CPU
> paths. This can lead to race conditions when multiple CPUs attempt
> to enable or disable the CATU device simultaneously. This patchset
> is to fix race conditions when enabling/disabling a CATU device.
>
> Changes since v4:
> - Collect Review-by tags.
> - return -EINVAL for unknown types in coresight_enable_path.
>
> [...]
Applied, thanks!
[1/2] coresight: catu: Introduce refcount and spinlock for enabling/disabling
https://git.kernel.org/coresight/c/a03a0a08
[2/2] coresight: core: Disable helpers for devices that fail to enable
https://git.kernel.org/coresight/c/f6028eee
Best regards,
--
Suzuki K Poulose <suzuki.poulose at arm.com>
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