This is a rework of patches sent a few months back by Rohit[1]. The goal of these patches is to add support for SMP and (basic) hotplug on MSM based SoCs. To get there, we add support for a generic way to add SMP/hotplug support code in the kernel. To show how it's used, we convert the MSM8660 SMP support code over to the new method. After that we add support for the rest of the upstream MSM SoCs (note these patches are piled high on top of Rohit's patches to add 8074 support to MSM[2] and my follow ups[3,4], but this should only matter to the MSM maintainers).
This is one of the last items of code that still requires us to have a mach directory and a machine descriptor. We should be able to move the hotplug/smp code out of mach directories if this approach is accepted. [1] https://lkml.org/lkml/2013/8/1/770 [2] https://lkml.org/lkml/2013/10/17/520 [3] https://lkml.org/lkml/2013/10/18/406 [4] http://lkml.org/lkml/2013/10/28/501 Rohit Vaswani (7): devicetree: bindings: Document cpu enable-method for ARM CPUs devicetree: bindings: Document Qualcomm cpus and enable-method ARM: msm: Remove pen_release usage ARM: msm: Re-organize platsmp to make it extensible ARM: msm: Add SMP support for KPSSv1 ARM: msm: Add SMP support for KPSSv2 ARM: dts: msm: Add nodes necessary for SMP boot Stephen Boyd (4): devicetree: bindings: Document qcom,kpss-acc devicetree: bindings: Document qcom,saw2 node ARM: Introduce CPU_METHOD_OF_DECLARE() for cpu hotplug/smp ARM: msm: Remove nr_cpus detection logic Documentation/devicetree/bindings/arm/cpus.txt | 11 + .../devicetree/bindings/arm/msm/qcom,kpss-acc.txt | 21 ++ .../devicetree/bindings/arm/msm/qcom,saw2.txt | 23 ++ arch/arm/boot/dts/qcom-msm8660-surf.dts | 24 ++ arch/arm/boot/dts/qcom-msm8960-cdp.dts | 32 +++ arch/arm/boot/dts/qcom-msm8974.dtsi | 49 ++++ arch/arm/include/asm/smp.h | 9 + arch/arm/kernel/devtree.c | 38 +++ arch/arm/mach-msm/Makefile | 2 +- arch/arm/mach-msm/board-dt.c | 14 - arch/arm/mach-msm/common.h | 1 - arch/arm/mach-msm/headsmp.S | 39 --- arch/arm/mach-msm/hotplug.c | 31 +-- arch/arm/mach-msm/platsmp.c | 301 +++++++++++++++------ arch/arm/mach-msm/scm-boot.h | 8 +- include/asm-generic/vmlinux.lds.h | 10 + 16 files changed, 448 insertions(+), 165 deletions(-) create mode 100644 Documentation/devicetree/bindings/arm/msm/qcom,kpss-acc.txt create mode 100644 Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt delete mode 100644 arch/arm/mach-msm/headsmp.S -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
