Re: [PATCH 28/33] arm_mpam: Consider overflow in bandwidth counter state

[Gavin Shan]

On 11/7/25 10:34 PM, Ben Horgan wrote:
> Use the overflow status bit to track overflow on each bandwidth counter
> read and add the counter size to the correction when overflow is detected.
>
> This assumes that only a single overflow has occurred since the last read
> of the counter. Overflow interrupts, on hardware that supports them could
> be used to remove this limitation.
>
> Cc: Zeng Heng <zengheng4@xxxxxxxxxx>
> Signed-off-by: Ben Horgan <ben.horgan@xxxxxxx>
> ---
>   drivers/resctrl/mpam_devices.c  | 24 ++++++++++++++++++++++--
>   drivers/resctrl/mpam_internal.h |  3 ++-
>   2 files changed, 24 insertions(+), 3 deletions(-)

Reviewed-by: Gavin Shan <gshan@xxxxxxxxxx>