On Wed, Jan 28, 2015 at 08:22:41PM +0000, Stephen Boyd wrote: > 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? FWIW, they look fine to me. Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx> I guess the reason it works fine on other platforms is because the secondary start address we pass to firmware has bit 0 set and this causes the jump to the kernel in Thumb-2 mode. Catalin -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
