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

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Message-Id: <1421869698-27341-1-git-send-email-sboyd@codeaurora.org>
Date:	Wed, 21 Jan 2015 11:48:16 -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: [PATCH 0/2] Fix secondary CPU boot for thumb2 kernels

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(-)

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

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