Re: [PATCH 25/33] arm_mpam: Add helpers to allocate monitors

From: Gavin Shan

Date: Sun Nov 09 2025 - 18:03:10 EST


On 11/7/25 10:34 PM, Ben Horgan wrote:
From: James Morse <james.morse@xxxxxxx>

MPAM's MSC support a number of monitors, each of which supports
bandwidth counters, or cache-storage-utilisation counters. To use
a counter, a monitor needs to be configured. Add helpers to allocate
and free CSU or MBWU monitors.

Signed-off-by: James Morse <james.morse@xxxxxxx>
Reviewed-by: Ben Horgan <ben.horgan@xxxxxxx>
Reviewed-by: Jonathan Cameron <jonathan.cameron@xxxxxxxxxx>
Tested-by: Fenghua Yu <fenghuay@xxxxxxxxxx>
Tested-by: Shaopeng Tan <tan.shaopeng@xxxxxxxxxxxxxx>
Tested-by: Peter Newman <peternewman@xxxxxxxxxx>
Signed-off-by: Ben Horgan <ben.horgan@xxxxxxx>
---
drivers/resctrl/mpam_devices.c | 2 ++
drivers/resctrl/mpam_internal.h | 35 +++++++++++++++++++++++++++++++++
2 files changed, 37 insertions(+)


Reviewed-by: Gavin Shan <gshan@xxxxxxxxxx>