BMC/Intel-BMC/linux.git/arch/arm/mach-realview/hotplug.c, branch dev

ARM: cpu hotplug: remove majority of cache flushing from platforms

2013-04-18T19:08:04+00:00

Remove the majority of cache flushing calls from the individual platform files. This is now handled by the core code. Signed-off-by: Russell King

ARM: consolidate pen_release instead of having per platform definitions

2012-09-14T09:15:01+00:00

Almost each SMP platform defines pen_release to manage booting secondary CPUs. This of course clashes with the single zImage effort. Add the pen_release definition to the ARM SMP code, and remove all others. This should only be used by platforms which lack any kind of CPU power management... Reported-by: Arnd Bergmann Signed-off-by: Marc Zyngier Acked-by: Nicolas Pitre Signed-off-by: Arnd Bergmann

ARM: SoC: convert VExpress/RealView to SMP operations

2012-09-13T13:34:50+00:00

Convert both Realview and VExpress to use struct smp_operations to provide their SMP and CPU hotplug operation. Signed-off-by: Marc Zyngier Acked-by: Nicolas Pitre Signed-off-by: Arnd Bergmann

ARM: move CP15 definitions to separate header file

2012-03-28T17:30:01+00:00

Avoid namespace conflicts with drivers over the CP15 definitions by moving CP15 related prototypes and definitions to a private header file. Acked-by: Stephen Warren Tested-by: Stephen Warren [Tegra] Acked-by: H Hartley Sweeten Tested-by: H Hartley Sweeten [EP93xx] Acked-by: Nicolas Pitre Acked-by: Kukjin Kim Signed-off-by: Russell King Signed-off-by: David Howells

ARM: 7293/1: logical_cpu_map: decouple CPU mapping from SMP

2012-01-23T10:20:05+00:00

It turns out that the logical CPU mapping is useful even when !CONFIG_SMP for manipulation of devices like interrupt and power controllers when running a UP kernel on a CPU other than 0. This can happen when kexecing a UP image from an SMP kernel. In the future, multi-cluster systems running AMP configurations will require something similar for mapping cluster IDs, so it makes sense to decouple this logic in preparation for this support. Acked-by: Yang Bai Acked-by: Marc Zyngier Reported-by: Joerg Roedel Signed-off-by: Will Deacon Signed-off-by: Russell King

ARM: versatile: convert logical CPU numbers to physical numbers

2011-10-17T09:01:11+00:00

This patch uses the new cpu_logical_map() macro for converting logical CPU numbers into physical numbers when dealing with the pen_release variable in the SMP boot and CPU hotplug paths. Signed-off-by: Will Deacon

ARM: CPU hotplug: fix hard-coded control register constants

2010-12-20T15:09:16+00:00

Use the definition we've provided in asm/system.h rather than numeric constants. Signed-off-by: Russell King

ARM: CPU hotplug: fix reporting of spurious wakeups

2010-12-20T15:09:14+00:00

The original scheme for reporting spurious wakeups was broken - it tried to use printk() from a context which wasn't coherent with the other CPUs, which risks corrupting the printk() data. Fix this by noting the number spurious wakeups, and only report them when we are properly woken - when we will be coherent with the rest of the system. Signed-off-by: Russell King

ARM: CPU hotplug: remove bug checks in platform_cpu_die()

2010-12-20T15:09:10+00:00

platform_cpu_die() is entered from the CPU's own idle thread, which can not be migrated to other CPUs. Moreover, the 'cpu' argument comes from the thread info, which will always be the 'current' CPU. So remove this useless bug check. Signed-off-by: Russell King

ARM: CPU hotplug: move cpu_killed completion to core code

2010-12-20T15:09:10+00:00

We always need to wait for the dying CPU to reach a safe state before taking it down, irrespective of the requirements of the platform. Move the completion code into the ARM SMP hotplug code rather than having each platform re-implement this. Signed-off-by: Russell King