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path: root/arch/arm/mach-shmobile/platsmp-apmu.c
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2014-03-06ARM: shmobile: APMU: Fix warnings due to improper printk formatsLaurent Pinchart
Use the %pr printk specifier to print resource variables. This fixes warnings on platforms where resource_size_t has a different size than int. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-30ARM: shmobile: Include CA7 cores in APMU tableMagnus Damm
Add information to the shared APMU code regarding the APMU instance used to control the CA7 cores. This can be used on r8a7790 and r8a73a4, but should most likely be converted to DT in the future. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-30ARM: shmobile: Extend APMU code to allow single cluster onlyMagnus Damm
Extend the APMU code with a check to only allow boot of CPU cores that sit in the same cluster as CPU0. This makes it possible for people to use the r8a790 CA7 boot mode with CA7-cores only. The default CA15 boot mode will enable CA15 cores only. This is an intentional software limitation to cope with lacking scheduler support. By removing this patch it is possible to run all 8 cores in parallel, but this is not recommended without out of tree scheduler modfications or custom user space code to control the CPU affinitiy. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-30ARM: shmobile: Shared APMU SMP support code without DTMagnus Damm
Introduce shared APMU SMP code for mach-shmobile. Both SMP boot up and CPU Hotplug is supported. This version does not use DT but if needed this will be added as an incremental feature patch. The code is designed around CONFIG_NR_CPUS and should in theory support any number of APMUs, however due to the current DT-less static design only a single APMU is supported. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>