Thread (93 messages) 93 messages, 3 authors, 2025-08-12

Re: [PATCH v16 33/34] x86/resctrl: Configure mbm_event mode if supported

From: "Moger, Babu" <babu.moger@amd.com>
Date: 2025-08-12 19:21:09
Also in: lkml

Hi Reinette,

On 7/30/25 15:11, Reinette Chatre wrote:
Hi Babu,

On 7/25/25 11:29 AM, Babu Moger wrote:
quoted
Configure mbm_event mode on AMD platforms. On AMD platforms, it is
recommended to use the mbm_event mode, if supported, to prevent the
hardware from resetting counters between reads. This can result in
misleading values or display "Unavailable" if no counter is assigned
to the event.

The mbm_event mode, referred to as ABMC (Assignable Bandwidth Monitoring
Counters) on AMD, is enabled by default when supported by the system.
needs imperative
Sure.
quoted
Update ABMC across all logical processors within the resctrl domain to
ensure proper functionality.

Signed-off-by: Babu Moger <babu.moger@amd.com>
---
Patch looks good.
-- 
Thanks
Babu Moger
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