[PATCH 0/6] MSM8916: Bring secondary cores online with spin-table

[Caleb Connolly]

Hi Sam,

Can you re-send this without all the prerequisite-patch-id tags? b4 is 
desperately trying to apply ~140 patches from some old next branch to my 
tree and tbh im not sure how to make it stop.

Kind regards,

On 1/27/25 23:02, Sam Day wrote:
> This patch series depends on the "mach-snapdragon: handle platforms
> without PSCI support" patch that was submitted earlier today. That first
> patch lays some groundwork to handle detecting when a device is booting
> without PSCI and deletes the /psci node in that case.
> 
> This series builds on top of that detection by rewriting all CPUs with
> enable-method="psci" to "spin-table".
> 
> Once this is done, the existing spin-table support in U-Boot handles
> further patching the nodes with the appropriate cpu-release-addr and
> reserving the memory with the spin-table instructions.
> 
> Interestingly, this spin-table code doesn't seem to be in active use
> anywhere, and it had bitrotted a little. But after blowing the dust off
> it and fixing a couple of missing #includes, it works great.
> 
> I extended the spin-table support a little to make it easier for
> consumers to plug in a method that is called for each CPU that needs to
> be brought online. This saves the qcom board code from needing to hook
> into ft_board_setup or something that runs before booting the OS.
> 
> Signed-off-by: Sam Day <me at samcday.com>
> ---
> Sam Day (6):
>        armv8: spin_table: Fix missing includes
>        armv8: spin_table: add hook for booting cores
>        mach-snapdragon: qcom SCM call support
>        mach-snapdragon: fixup CPUs with PSCI enable-method
>        mach-snapdragon: MSM8916 spin-table CPU boot support
>        qcom_defconfig: enable spin-table support
> 
>   arch/arm/cpu/armv8/spin_table.c        |  10 ++
>   arch/arm/include/asm/spin_table.h      |   3 +
>   arch/arm/mach-snapdragon/Makefile      |   2 +
>   arch/arm/mach-snapdragon/board.c       |  41 ++++++++
>   arch/arm/mach-snapdragon/msm8916-smp.c | 135 +++++++++++++++++++++++++++
>   arch/arm/mach-snapdragon/qcom-scm.c    | 145 +++++++++++++++++++++++++++++
>   arch/arm/mach-snapdragon/qcom-scm.h    | 165 +++++++++++++++++++++++++++++++++
>   configs/qcom_defconfig                 |   2 +
>   8 files changed, 503 insertions(+)
> ---
> base-commit: 2eed5a1ff36217372e19f7513bd07077fc76718a
> change-id: 20250127-msm8916-smp-support-5f5e7b49d07e
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> 
> Best regards,

-- 
Caleb (they/them)