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From: Stephen Boyd <sboyd@codeaurora.org>
To: Russell King <linux@arm.linux.org.uk>
Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Kumar Gala <galak@codeaurora.org>
Subject: [PATCH 0/2] Fix secondary CPU boot for thumb2 kernels
Date: Wed, 21 Jan 2015 11:48:16 -0800	[thread overview]
Message-ID: <1421869698-27341-1-git-send-email-sboyd@codeaurora.org> (raw)

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


             reply	other threads:[~2015-01-21 19:48 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-21 19:48 Stephen Boyd [this message]
2015-01-21 19:48 ` [PATCH 1/2] ARM: Add a secondary_startup that assumes ARM mode Stephen Boyd
2015-01-21 19:48 ` [PATCH 2/2] ARM: qcom: Use secondary_startup_arm() Stephen Boyd
2015-01-28 20:22 ` [PATCH 0/2] Fix secondary CPU boot for thumb2 kernels Stephen Boyd
2015-01-29 15:46   ` Catalin Marinas
2015-01-29 21:29     ` Stephen Boyd

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