From: Vladimir Murzin <vladimir.murzin@arm.com>
To: Ayan Kumar Halder <ayankuma@amd.com>,
mark.rutland@arm.com, lpieralisi@kernel.org
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Stefano Stabellini <sstabellini@kernel.org>
Subject: Re: SMP enablement on Cortex-R52 (using PSCI ?)
Date: Tue, 18 Apr 2023 13:14:05 +0100 [thread overview]
Message-ID: <f4227609-ec24-58f8-e4d3-073434fd7ab3@arm.com> (raw)
In-Reply-To: <1cb7d428-c047-1485-e39d-465806f6ef0b@amd.com>
Hi,
On 4/14/23 12:24, Ayan Kumar Halder wrote:
> Hi PSCI developers,
>
> We have a SoC where there are 4 Cortex-R52 which is distributed in two clusters. So we have 2 Cortex-R52 in one cluster and 2 Cortex-R52 in another cluster.
>
> We wish to enable SMP on the 2 R52 within a cluster with Xen hypervisor (EL2 software) running on them.
>
> We are trying to explore if we can use PSCI for booting the secondary cores.
>
snip
>
> I wish to know how do we wake up the secondary core if PSCI is not supported.
>
It looks to me you need to provide/use platform defined method. I see that
Xen provides struct platform_desc with smp_init and cpu_up callbacks...
Cheers
Vladimir
> Kind regards,
> Ayan
>
>
>
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next prev parent reply other threads:[~2023-04-18 12:14 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-14 11:24 SMP enablement on Cortex-R52 (using PSCI ?) Ayan Kumar Halder
2023-04-18 12:14 ` Vladimir Murzin [this message]
2023-04-19 8:47 ` Sudeep Holla
2023-04-19 17:50 ` Robin Murphy
2023-04-20 9:51 ` Sudeep Holla
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