• Yuriy Kolerov's avatar
    ARCv2: MCIP: Deprecate setting of affinity in Device Tree · 92fdb527
    Yuriy Kolerov authored
    Ignore value of interrupt distribution mode for common interrupts in
    IDU since setting of affinity using value from Device Tree is deprecated
    in ARC. Originally it is done in idu_irq_xlate() function and it is
    semantically wrong and does not guaranty that an affinity value will be
    set properly. idu_irq_enable() function is better place for
    initialization of common interrupts.
    
    By default send all common interrupts to all available online CPUs.
    The affinity of common interrupts in IDU must be set manually since
    in some cases the kernel will not call irq_set_affinity() by itself:
    
      1. When the kernel is not configured with support of SMP.
      2. When the kernel is configured with support of SMP but upper
         interrupt controllers does not support setting of the affinity
         and cannot propagate it to IDU.
    Signed-off-by: default avatarYuriy Kolerov <yuriy.kolerov@synopsys.com>
    Signed-off-by: default avatarVineet Gupta <vgupta@synopsys.com>
    92fdb527
mcip.c 8.13 KB