linux-kernel - Re: [PATCH 09/33] ACPI / MPAM: Parse the MPAM table

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Message-ID: <20251110162330.00002917@huawei.com>
Date: Mon, 10 Nov 2025 16:23:30 +0000
From: Jonathan Cameron <jonathan.cameron@...wei.com>
To: Ben Horgan <ben.horgan@....com>
CC: <james.morse@....com>, <amitsinght@...vell.com>,
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Subject: Re: [PATCH 09/33] ACPI / MPAM: Parse the MPAM table

On Fri, 7 Nov 2025 12:34:26 +0000
Ben Horgan <ben.horgan@....com> wrote:

> From: James Morse <james.morse@....com>
> 
> Add code to parse the arm64 specific MPAM table, looking up the cache
> level from the PPTT and feeding the end result into the MPAM driver.
> 
> This happens in two stages. Platform devices are created first for the
> MSC devices. Once the driver probes it calls acpi_mpam_parse_resources()
> to discover the RIS entries the MSC contains.
> 
> For now the MPAM hook mpam_ris_create() is stubbed out, but will update
> the MPAM driver with optional discovered data about the RIS entries.
> 
> CC: Carl Worth <carl@...amperecomputing.com>
> Link: https://developer.arm.com/documentation/den0065/3-0bet/?lang=en
> Reviewed-by: Lorenzo Pieralisi <lpieralisi@...nel.org>
> Tested-by: Fenghua Yu <fenghuay@...dia.com>
> Tested-by: Shaopeng Tan <tan.shaopeng@...fujitsu.com>
> Tested-by: Peter Newman <peternewman@...gle.com>
> Signed-off-by: James Morse <james.morse@....com>
> Signed-off-by: Ben Horgan <ben.horgan@....com>
Nothing to add to Gavin's comments.

Reviewed-by: Jonathan Cameron <jonathan.cameron@...wei.com>