linux-kernel - Re: [PATCH v3 39/47] arm64: mpam: Select ARCH_HAS_CPU

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Message-ID: <aWk9ILetLYozhx9D@arm.com>
Date: Thu, 15 Jan 2026 19:16:48 +0000
From: Catalin Marinas <catalin.marinas@....com>
To: Ben Horgan <ben.horgan@....com>
Cc: amitsinght@...vell.com, baisheng.gao@...soc.com,
	baolin.wang@...ux.alibaba.com, carl@...amperecomputing.com,
	dave.martin@....com, david@...nel.org, dfustini@...libre.com,
	fenghuay@...dia.com, gshan@...hat.com, james.morse@....com,
	jonathan.cameron@...wei.com, kobak@...dia.com, lcherian@...vell.com,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
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	suzuki.poulose@....com, kvmarm@...ts.linux.dev
Subject: Re: [PATCH v3 39/47] arm64: mpam: Select ARCH_HAS_CPU_RESCTRL

On Mon, Jan 12, 2026 at 04:59:06PM +0000, Ben Horgan wrote:
> From: James Morse <james.morse@....com>
> 
> Enough MPAM support is present to enable ARCH_HAS_CPU_RESCTRL.  Let it
> rip^Wlink!
> 
> ARCH_HAS_CPU_RESCTRL indicates resctrl can be enabled. It is enabled by the
> arch code simply because it has 'arch' in its name.
> 
> This removes ARM_CPU_RESCTRL as a mimic of X86_CPU_RESCTRL.  While here,
> move the ACPI dependency to the driver's Kconfig file.
> 
> In anticipation of MPAM being useful remove the CONFIG_EXPERT restriction.
> 
> Reviewed-by: Jonathan Cameron <jonathan.cameron@...wei.com>
> Signed-off-by: James Morse <james.morse@....com>
> Signed-off-by: Ben Horgan <ben.horgan@....com>

Acked-by: Catalin Marinas <catalin.marinas@....com>