Searched hist:e70d5970 (Results 1 – 2 of 2) sorted by relevance
/openbmc/linux/arch/powerpc/include/asm/ |
H A D | rtas.h | e70d5970 Fri Jan 06 13:27:26 CST 2017 John Allen <jallen@linux.vnet.ibm.com> powerpc/pseries: Introduce memory hotplug READD operation
Currently, memory must be hot removed and subsequently re-added in order to dynamically update the affinity of LMBs specified by a PRRN event. Earlier implementations of the PRRN event handler ran into issues in which the hot remove would occur successfully, but a hotplug event would be initiated from another source and grab the hotplug lock preventing the hot add from occurring. To prevent this situation, this patch introduces the notion of a hot "readd" action for memory which atomizes a hot remove and a hot add into a single, serialized operation on the hotplug queue.
Signed-off-by: John Allen <jallen@linux.vnet.ibm.com> Reviewed-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> e70d5970 Fri Jan 06 13:27:26 CST 2017 John Allen <jallen@linux.vnet.ibm.com> powerpc/pseries: Introduce memory hotplug READD operation Currently, memory must be hot removed and subsequently re-added in order to dynamically update the affinity of LMBs specified by a PRRN event. Earlier implementations of the PRRN event handler ran into issues in which the hot remove would occur successfully, but a hotplug event would be initiated from another source and grab the hotplug lock preventing the hot add from occurring. To prevent this situation, this patch introduces the notion of a hot "readd" action for memory which atomizes a hot remove and a hot add into a single, serialized operation on the hotplug queue. Signed-off-by: John Allen <jallen@linux.vnet.ibm.com> Reviewed-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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/openbmc/linux/arch/powerpc/platforms/pseries/ |
H A D | hotplug-memory.c | e70d5970 Fri Jan 06 13:27:26 CST 2017 John Allen <jallen@linux.vnet.ibm.com> powerpc/pseries: Introduce memory hotplug READD operation
Currently, memory must be hot removed and subsequently re-added in order to dynamically update the affinity of LMBs specified by a PRRN event. Earlier implementations of the PRRN event handler ran into issues in which the hot remove would occur successfully, but a hotplug event would be initiated from another source and grab the hotplug lock preventing the hot add from occurring. To prevent this situation, this patch introduces the notion of a hot "readd" action for memory which atomizes a hot remove and a hot add into a single, serialized operation on the hotplug queue.
Signed-off-by: John Allen <jallen@linux.vnet.ibm.com> Reviewed-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> e70d5970 Fri Jan 06 13:27:26 CST 2017 John Allen <jallen@linux.vnet.ibm.com> powerpc/pseries: Introduce memory hotplug READD operation Currently, memory must be hot removed and subsequently re-added in order to dynamically update the affinity of LMBs specified by a PRRN event. Earlier implementations of the PRRN event handler ran into issues in which the hot remove would occur successfully, but a hotplug event would be initiated from another source and grab the hotplug lock preventing the hot add from occurring. To prevent this situation, this patch introduces the notion of a hot "readd" action for memory which atomizes a hot remove and a hot add into a single, serialized operation on the hotplug queue. Signed-off-by: John Allen <jallen@linux.vnet.ibm.com> Reviewed-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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