From: Ping Li <leeonion.muyu@gmail.com>
To: ben.horgan@arm.com, james.morse@arm.com
Cc: linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, reinette.chatre@intel.com,
fenghuay@nvidia.com
Subject: Re: [PATCH] arm_mpam: Only program MATCH_PMG when the monitor supports it
Date: Mon, 2 Nov 2026 20:05:24 +0800 [thread overview]
Message-ID: <20261102120524.1213679-1-leeonion.muyu@gmail.com> (raw)
In-Reply-To: <912dbaa0-0fc0-46fb-819a-6594538b47cd@arm.com>
Hi Ben,
Apologies for raising this directly on the list - hardware questions
like this should go to support@arm.com first.
To answer your question: our memory controller is still at the FPGA
stage. It has 32 PARTIDs but no PMG. After talking with our hardware
team and reading the specification, I had wrongly assumed this design
was legitimate. Our intended usage was one control group in resctrl
with no further monitor groups underneath, so the PARTID-only
monitoring would have been sufficient for us.
I will get our hardware team to review the RTL with Arm support, and
will drop this patch.
Sorry for the noise, and thanks for the pointers.
Ping
prev parent reply other threads:[~2026-11-02 12:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-02 7:13 Ping Li
2026-11-02 9:46 ` Ben Horgan
2026-11-02 12:05 ` Ping Li [this message]
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