[PATCH v3] drivers/perf: arm_spe: Fix consistency of SYS_PMSCR_EL1.CX

[Will Deacon]

On Thu, 14 Jul 2022 11:43:02 +0530, Anshuman Khandual wrote:
> The arm_spe_pmu driver will enable SYS_PMSCR_EL1.CX in order to add CONTEXT
> packets into the traces, if the owner of the perf event runs with required
> capabilities i.e CAP_PERFMON or CAP_SYS_ADMIN via perfmon_capable() helper.
> 
> The value of this bit is computed in the arm_spe_event_to_pmscr() function
> but the check for capabilities happens in the pmu event init callback i.e
> arm_spe_pmu_event_init(). This suggests that the value of the CX bit should
> remain consistent for the duration of the perf session.
> 
> [...]

Applied to will (for-next/perf), thanks!

[1/1] drivers/perf: arm_spe: Fix consistency of SYS_PMSCR_EL1.CX
      https://git.kernel.org/will/c/92f2b8bafa3d

Cheers,
-- 
Will

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