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History

Nick Bowler b3377d1865 ARM: 7064/1: vexpress: Use wfi macro in platform_do_lowpower.

Current Versatile Express CPU hotplug code includes a hardcoded WFI
instruction, in ARM encoding.  When the kernel is compiled in Thumb-2
mode, this is invalid and causes the machine to hang hard when a CPU
is offlined.

Using the wfi macro (which uses the appropriate assembler mnemonic)
causes the correct instruction to be emitted in either case.  As a
consequence of this change, an apparently vestigial "cc" clobber is
dropped from the asm (the macro uses "memory" only).

Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2011-10-17 09:12:41 +01:00

include/mach

ARM: consolidate SMP cross call implementation

2011-05-23 16:53:17 +01:00

core.h

ARM: 6771/1: vexpress: add support for multiple core tiles

2011-03-20 09:32:21 +00:00

ct-ca9x4.c

ARM: 6993/1: platsmp: Allow secondary cpu hotplug with maxcpus=1

2011-07-07 14:45:07 +01:00

hotplug.c

ARM: 7064/1: vexpress: Use wfi macro in platform_do_lowpower.