linux-toradex.git/arch/arm/mach-realview/hotplug.c, branch v3.2.9 Linux kernel for Apalis and Colibri modules ARM: versatile: convert logical CPU numbers to physical numbers 2011-10-17T09:01:11+00:00 Will Deacon will.deacon@arm.com 2011-08-09T11:24:07+00:00 4a139b64703115e41e1a4e16ebf7eb93d0a0e349 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 <will.deacon@arm.com> 
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 <will.deacon@arm.com>
ARM: CPU hotplug: fix hard-coded control register constants 2010-12-20T15:09:16+00:00 Russell King rmk+kernel@arm.linux.org.uk 2010-12-19T11:36:33+00:00 e3d9c625f5e4158014e041f492b46e38ad10987e Use the definition we've provided in asm/system.h rather than numeric constants. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Use the definition we've provided in asm/system.h rather than
numeric constants.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: CPU hotplug: fix reporting of spurious wakeups 2010-12-20T15:09:14+00:00 Russell King rmk+kernel@arm.linux.org.uk 2010-12-19T11:30:43+00:00 d4450261e546953c4a1ce8b48e29164a57c6ed33 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 <rmk+kernel@arm.linux.org.uk> 
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 <rmk+kernel@arm.linux.org.uk>
ARM: CPU hotplug: remove bug checks in platform_cpu_die() 2010-12-20T15:09:10+00:00 Russell King rmk+kernel@arm.linux.org.uk 2010-11-30T11:12:30+00:00 bbc81fd4327f9ed4480b05981e38acd48b1d184a 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 <rmk+kernel@arm.linux.org.uk> 
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 <rmk+kernel@arm.linux.org.uk>
ARM: CPU hotplug: move cpu_killed completion to core code 2010-12-20T15:09:10+00:00 Russell King rmk+kernel@arm.linux.org.uk 2010-11-30T11:07:35+00:00 3c030beabf937b1d3b4ecaedfd1fb2f1e2aa0c70 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 <rmk+kernel@arm.linux.org.uk> 
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 <rmk+kernel@arm.linux.org.uk>
ARM: rename mach_cpu_disable() to platform_cpu_disable() 2010-05-15T14:03:51+00:00 Russell King rmk+kernel@arm.linux.org.uk 2010-05-15T09:18:05+00:00 8e2a43f5f5e1255879064924917fb1a6e5be7cb3 Consistently name all SMP platform related functions. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Consistently name all SMP platform related functions.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
RealView: Use flush_cache_all() rather than MCR in cpu_enter_lowpower() 2008-12-01T14:54:56+00:00 Harry Fearnhamm Harry.Fearnhamm@arm.com 2008-12-01T14:54:56+00:00 8aa2da872a492a2196397603ed756a4c48677122 The MCR for flushing the whole D cache is undefined on ARMv7 CPUs. Signed-off-by: Harry Fearnhamm <Harry.Fearnhamm@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> 
The MCR for flushing the whole D cache is undefined on ARMv7 CPUs.

Signed-off-by: Harry Fearnhamm <Harry.Fearnhamm@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
[ARM SMP] Add CPU hotplug support for Realview MPcore 2005-11-09T13:50:57+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2005-11-09T13:50:57+00:00 97a63ecff4bd06da5d8feb8c0394a4d020f2d34d Add platform specific parts for hotplug CPU support for the Realview board. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Add platform specific parts for hotplug CPU support for the
Realview board.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>