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

Stephen Boyd sboyd at codeaurora.org
Wed Jan 28 12:22:41 PST 2015


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




More information about the linux-arm-kernel mailing list