Commit Graph

3 Commits

Author SHA1 Message Date
Will Deacon eb50439b92 ARM: 7293/1: logical_cpu_map: decouple CPU mapping from SMP
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 <hamo.by@gmail.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Reported-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-01-23 10:20:05 +00:00
Will Deacon 1d3cfb34f9 ARM: msm: convert logical CPU numbers to physical numbers
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.

Tested-and-acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-10-17 10:01:11 +01:00
Jeff Ohlstein 9f1890a5de msm: hotplug: support cpu hotplug on msm
Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
2011-01-07 15:54:44 -08:00