RE: How to diasble interrupt of current core in multicore cpu
-Original Message- From: kernelnewbies-boun...@kernelnewbies.org [mailto:kernelnewbies-boun...@kernelnewbies.org] On Behalf Of Pranay Srivastava Sent: Friday, May 30, 2014 4:26 PM To: J.Hwan Kim Cc: kernelnewbies Subject: Re: How to diasble interrupt of current core in multicore cpu are you looking for local_irq_disable? On Fri, May 30, 2014 at 1:42 PM, J.Hwan Kim wrote: > Hi, everyone > > How to disable interrupt for current core in multicore CPU? > > Thanks in advance > Kim. > local_irq_save/restore would be more suitable. you can use them without considering is interrupt enabled now. your code may looks like this: local_irq_save() /*your code comes here with interrupt disabled*/ local_irq_restore() in this way, if interrupt is in state A (may be enabled or disabled), before you call local_irq_save(), then after you call local_irq_restore, the interrupt will still be in state A. harmless to other code. > ___ > Kernelnewbies mailing list > Kernelnewbies@kernelnewbies.org > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies -- ---P.K.S ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: How to diasble interrupt of current core in multicore cpu
linux-3.12.6/Documentation/IRQ-affinity.txt On Fri, May 30, 2014 at 4:25 PM, Pranay Srivastava wrote: > are you looking for > > local_irq_disable? > > On Fri, May 30, 2014 at 1:42 PM, J.Hwan Kim wrote: >> Hi, everyone >> >> How to disable interrupt for current core in multicore CPU? >> >> Thanks in advance >> Kim. >> >> ___ >> Kernelnewbies mailing list >> Kernelnewbies@kernelnewbies.org >> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > > > > -- > ---P.K.S > > ___ > Kernelnewbies mailing list > Kernelnewbies@kernelnewbies.org > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: How to diasble interrupt of current core in multicore cpu
are you looking for local_irq_disable? On Fri, May 30, 2014 at 1:42 PM, J.Hwan Kim wrote: > Hi, everyone > > How to disable interrupt for current core in multicore CPU? > > Thanks in advance > Kim. > > ___ > Kernelnewbies mailing list > Kernelnewbies@kernelnewbies.org > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies -- ---P.K.S ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
How to diasble interrupt of current core in multicore cpu
Hi, everyone How to disable interrupt for current core in multicore CPU? Thanks in advance Kim. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
