linux-kernel - Re: [PATCH 0/2] Fix secondary CPU boot for thumb2 kernels

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Message-ID: <54C94511.30508@codeaurora.org>
Date:	Wed, 28 Jan 2015 12:22:41 -0800
From:	Stephen Boyd <sboyd@...eaurora.org>
To:	Russell King <linux@....linux.org.uk>
CC:	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Kumar Gala <galak@...eaurora.org>
Subject: Re: [PATCH 0/2] Fix secondary CPU boot for thumb2 kernels

On 01/21/15 11:48, Stephen Boyd wrote:
> Currently I can't boot up secondary CPUs on qcom platforms when I
> compile the kernel for THUMB2 mode. This is because we always enter
> the kernel in ARM mode regardless of what mode the kernel is compiled
> for. This patchset adds a small wrapper to secondary_startup() called
> secondary_startup_arm() that allows us to switch into THUMB2 mode if
> we need to. If the kernel is compiled for ARM mode it shouldn't have
> any effect.
>
> Stephen Boyd (2):
>   ARM: Add a secondary_startup that assumes ARM mode
>   ARM: qcom: Use secondary_startup_arm()
>
>  arch/arm/kernel/head.S       | 7 +++++++
>  arch/arm/mach-qcom/platsmp.c | 4 ++--
>  2 files changed, 9 insertions(+), 2 deletions(-)
>

Any comments here? Perhaps I can send this through the patch tracker?

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

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