On Thu, 8 Oct 2020 17:26:17 +0800, John Garry wrote:
> To allow perf tool to identify a specific implementation of a PMU for
> event alias matching and metric support, expose a per-PMU identifier file.
>
> There is no standard format for the identifier string. It just should be
> unique per HW implementation.
>
> Typical methods to retrieve the information for the identifier string
> can include:
> - Hardcoding in the driver, matched via DT bindings compat string,
> ACPI HID, or similar
> - Directly from DT bindings property
> - Read from some HW identification register
>
> [...]
Applied the hisi and smmu parts to will (for-next/perf), thanks!
[1/4] drivers/perf: hisi: Add identifier sysfs file
https://git.kernel.org/will/c/ac4511c9364c
[...]
[4/4] perf/smmuv3: Support sysfs identifier file
https://git.kernel.org/will/c/2c255223362e
I've completely lost track of the imx ddr PMU, so I dropped those parts
(patch 3/4 seemed to remove a compatible string from the driver?).
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
