Doug / smarc-fsl-linux-kernel

31 Oct, 2011

1 commit

  • 6d274309d   irq: support domains with non-zero hwirq base ... Browse Code »

    Interrupt controllers can have non-zero starting value for h/w irq numbers.
    Adding support in irq_domain allows the domain hwirq numbering to match
    the interrupt controllers' numbering.

    As this makes looping over irqs for a domain more complicated, add loop
    iterators to iterate over all hwirqs and irqs for a domain.

    Signed-off-by: Rob Herring
    Reviewed-by: Jamie Iles
    Tested-by: Thomas Abraham
    Acked-by: Grant Likely
    Acked-by: Thomas Gleixner

    Rob Herring
     

20 Sep, 2011

1 commit

  • 5bd078dda   irq: Add declaration of irq_domain_simple_ops to irqdomain.h ... Browse Code »

    irq_domain_simple_ops is exported, but is not declared in irqdomain.h,
    so add it.

    Signed-off-by: Rob Herring
    Cc: Grant Likely
    Cc: marc.zyngier@arm.com
    Cc: thomas.abraham@linaro.org
    Cc: jamie@jamieiles.com
    Cc: b-cousson@ti.com
    Cc: shawn.guo@linaro.org
    Cc: linux-arm-kernel@lists.infradead.org
    Cc: devicetree-discuss@lists.ozlabs.org
    Link: http://lkml.kernel.org/r/1316017900-19918-2-git-send-email-robherring2@gmail.com
    Signed-off-by: Thomas Gleixner

    Rob Herring
     

28 Jul, 2011

2 commits

  • 7e7133016   dt/irq: add irq_domain_generate_simple() helper ... Browse Code »

    irq_domain_generate_simple() is an easy way to generate an irq translation
    domain for simple irq controllers. It assumes a flat 1:1 mapping from
    hardware irq number to an offset of the first linux irq number assigned
    to the controller

    Signed-off-by: Grant Likely

    Grant Likely
     
  • 08a543ad3   irq: add irq_domain translation infrastructure ... Browse Code »

    This patch adds irq_domain infrastructure for translating from
    hardware irq numbers to linux irqs. This is particularly important
    for architectures adding device tree support because the current
    implementation (excluding PowerPC and SPARC) cannot handle
    translation for more than a single interrupt controller. irq_domain
    supports device tree translation for any number of interrupt
    controllers.

    This patch converts x86, Microblaze, ARM and MIPS to use irq_domain
    for device tree irq translation. x86 is untested beyond compiling it,
    irq_domain is enabled for MIPS and Microblaze, but the old behaviour is
    preserved until the core code is modified to actually register an
    irq_domain yet. On ARM it works and is required for much of the new
    ARM device tree board support.

    PowerPC has /not/ been converted to use this new infrastructure. It
    is still missing some features before it can replace the virq
    infrastructure already in powerpc (see documentation on
    irq_domain_map/unmap for details). Followup patches will add the
    missing pieces and migrate PowerPC to use irq_domain.

    SPARC has its own method of managing interrupts from the device tree
    and is unaffected by this change.

    Acked-by: Ralf Baechle
    Signed-off-by: Grant Likely

    Grant Likely